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Computational study of the accuracy of the r-centroid approximation

Abstract The r -centroid approximation, used in the analysis of intensity measurements of electronic band spectra of diatomic molecules, allows a separation of the band strength into a pure vibrational term (the Franck-Condon factor q v ′ v ″ ) and an electronic term [the electronic transition moment Re ( r )]. The r -centroid approximation is known to have limits to its applicability. However, no specific error limits have previously been given. A computational study has been performed using several molecules and analytic curves to determine specific error limits which can be assigned to either a specific band strength, or in estimating the electronic transition moment using the r -centroid approximation. Other techniques suggested for the evaluation of Re ( r ) have also been tested.

Software engineers often need to identify and correct design defects, i.e., recurring design problems that hinder development and maintenance by making programs harder to comprehend and/or evolve. While detection of design defects is an actively researched area, their correction- mainly a manual and time-consuming activity- is yet to be extensively investigated for automation. In this paper, we propose an automated approach for suggesting defect-correcting refactorings using relational concept analysis (RCA). The added value of rca consists in exploiting the links between formal objects which abound in a software re-engineering context. We validated our approach on instances of the Blob design defect taken from four different open-source programs.

eng_Latn

Clone region descriptors: Representing and tracking duplication in source code

An empirical study of code clone genealogies

Damaged plasticity modelling of concrete in finite element analysis of reinforced concrete slabs

eng_Latn

A study of the uniqueness of source code

DECKARD: Scalable and Accurate Tree-Based Detection of Code Clones

Spatial ability and STEM: A sleeping giant for talent identification and development

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Who Wrote This Code? Identifying the Authors of Program Binaries

Winnowing: local algorithms for document fingerprinting

SERT and NET occupancy by venlafaxine and milnacipran in nonhuman primates: a PET study

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Dynamic Malware Detection Using API Similarity

Malware Detection Using Dynamic Birthmarks

Neurofeedback for the treatment of schizophrenia: Case study

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A case study on the relationship between code ownership and refactoring activities in a Java software system

Template-based reconstruction of complex refactorings

Simulation of ion implantation for CMOS 1µm using SILVACO tools

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ASN: A Dynamic Barrier-Based Approach to Confirmation of Deadlocks from Warnings for Large-Scale Multithreaded Programs

Learning from mistakes: a comprehensive study on real world concurrency bug characteristics

Pin: building customized program analysis tools with dynamic instrumentation

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A case study on the relationship between code ownership and refactoring activities in a Java software system

Assert Use in GitHub Projects

A future-adaptable password scheme

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cork : dynamic memory leak detection for java .

Visualizing reference patterns for solving memory leaks in Java

Web application security vulnerabilities detection approaches: A systematic mapping study

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VMHunt: A Verifiable Approach to Partially-Virtualized Binary Code Simplification

AEG: Automatic Exploit Generation

Accuracy of electronic apex locators to detect root canal perforations with inserted metallic posts: an ex vivo study

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A Large-Scale Empirical Study of Security Patches

An empirical study on real bug fixes

Low-cost Autonomous Navigation System Based on Optical Flow Classification

kor_Hang

High-frequency electric fields as lethal agents for insects.

Control of maize weevil ( Sitophilus zeamais Motschulsky ) and lesser grain borer ( Rhyzopertha dominica ( F . ) ) by radio frequency

The impact of extremely low frequency electromagnetic fields on stream periphyton: an eleven-year study

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The paper proposes an approach to investigate the fine structure of the voltages circulating in the industrial network within the range of 300 kHz-20 MHz, which serves to do some measurements of real lines in real operating mode. It is shown that the interferences can be divided into basic- with spectral density changing slowly with frequency alteration and narrow-band (frequency-pulse). It is also indicated that the frequency concentrated interferences occupy usually 1-5% of the frequency range studied and their intensity is deeply modulated with the doubled frequency of the power supply voltage. There are areas with distinctly expressed low interferences around the zero transitions. The study is motivated by the search for sophisticated methods of high-speed data exchange through the power network.

In-building power lines have been considered as a medium for high speed data transmission for applications like home networking and Internet access. Frequency selectivity and time variation of this medium in addition to the high level of narrow-band and impulsive interference makes multi-carrier modulation, and especially its popular variant discrete multitone (DMT), an attractive modulation candidate for this application. This paper presents the results of our measurements of the high frequency characteristics of ordinary in-building power lines, as well as simulation results of a DMT transceiver system in an in-building power line environment.

[1] The origins of rip current pulsations within the infragravity frequency band (0.004–0.04 Hz) are determined from measurements made with arrays of colocated pressure and velocity sensors deployed on a beach with persistent rip current channels. The observations indicate significant energy in cross-shore infragravity velocities that varies spatially in the alongshore due to the presence of rip channels. Infragravity velocities are smaller within the rip channel than on the shore-connected shoal owing to differences in water depth. Rip current pulsations at infragravity frequencies are linked to standing infragravity motions but not to the ponding and subsequent release of water by wave group pumping.

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With the increasing need of transmitting electrical energy over very long distances, combined with necessary space saving installations, the focus is more and more shifted to DC operated gas insulated systems. Their insulation system is nearly uniform, hence well-known problems, like space charge accumulation and metallic particles become more critical using SF6 in comparison to non-uniform air insulations. As soon as the applied voltage exceeds the inception voltage at the particle tips, the particle will produce charge carriers. These space charges will accumulate on the insulator and possibly influence the flashover behaviour. For a systematic study, variable parameters as the size of the particle and its position relative to the high voltage electrode, were chosen. In this paper, the flashover behaviour of epoxy resin insulators with adhesive metallic particles under both positive and negative DC voltage stress in gas insulated systems was investigated.

Particle-initiated breakdown characteristics in SF6 gas are investigated. Breakdown voltages are greatly influenced by particle diameter especially for AC voltages, and for very fine metallic wire particles are much higher than those for moderately thick ones. The breakdown stress of a gas gap is obtained as a function of particle length and can be estimated fairly well by assuming a corona stabilizing zone. For a spacer, the electric stress which is parallel to its surface dominates surface breakdowns and the relation between the stress and particle length is experimentally determined. In order to increase breakdown voltages, the effects of both the dielectric coating on a high-voltage electrode and spacer shape are examined. Finally, the effectiveness of the dielectric coating on a grounded electrode is demonstrated to prevent particle levitation.

We prove that groups acting geometrically on delta-quasiconvex spaces contain no essential Baumslag-Solitar quotients as subgroups. This implies that they are translation discrete, meaning that the translation numbers of their nontorsion elements are bounded away from zero.

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Integrated circuits (ICs) are often the source of the high-frequency noise that drives electromagnetic emissions from electronic products. A case study is presented where emissions from a printed circuit board containing an automotive microcontroller are reduced significantly through analysis of the coupling mechanisms from the chip to the board and attached cables. Noise generated by the IC is explored through measurements in a semi-anechoic chamber and TEM cell, through near-field scans, and through modifications to the printed circuit board. Noise is driven by the IC through both power and I/O connections. Results show that a ferrite in series with I/O power in this application reduced emissions by 10 dB or more at critical frequencies. Possible causes for emissions from the IC and modifications that might reduce these emissions are discussed.

Knowledge of high-frequency currents in the chip and chip-package are necessary for EMI analysis and prediction, though measurement of these currents may be difficult to obtain in many cases. One possibility is to estimate currents from near-field scan data. In this paper, measurements were made of the magnetic field over a simple circuit and a chip package. The current flowing in the circuit and the chip lead frame was estimated from the compensated near-field data and compared with measurements made directly on the pins. Estimation was performed both with and without structural information of the lead frame. The susceptibility of estimated currents to measurement errors was analyzed. Results show this technique can be a powerful tool for analyzing high frequency chip currents.

Pedestrian-induced vibration comfort is an important factor affecting the serviceability of footbridges. This article proposes a smartphone-based evaluation system for pedestrian-induced footbridge...

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The technique was developed for studying the noise immunity of electronic systems of unmanned aerial vehicles on the basis of physical modeling. The mathematical models, the scheme of a test bench, and examples of parameter calculation for physical modeling of electromagnetic interference in communication lines under the influence of switching magnetic fields of electric transport contact network are proposed. An example of physical modeling of electromagnetic interference in communication lines is presented.

The reliability of automatic control systems depends on the reliability of its elements in particular computing equipment. Computing equipment is a constant consumer of power from the network During the operation of computing technology, there are often dynamic changes in the voltage in the power supply network-dips and interruptions. Dips and interruptions are one of the main problems in terms of noise immunity of computing equipment. The results of studies of the noise immunity of computing equipment with dynamic changes in the power supply voltage are article presents.

Berzelius failed to make use of Faraday's electrochemical laws in his laborious determination of equivalent weights.

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Energy Performance Contracting is a business operating mode based on trust and contract.The relationship between Energy Management Corporation (EMC) and Energy Consumer is discussed from the viewpoint of relational contract.They are the principal implement body of the Energy Performance Contracting (EPC).The particular contracting relation between Energy Management Corporation and Energy Consumer is analyzed.Drawing lessons from relevant study works,two governance patterns are proposed: bilateral governance and unified gov-ernance to govern the contracting relation and promote the cooperation between the two parties.

The paper firstly analyzes the operating mechanism of China's small and medium-sized EMCos, finding that fund accommodation and risk management are the two development challenges that they are facing with. Then it analyzes the function of the financial system, finding that some measures of the financial system can solve the problems faced by EMCos. Finally, by analyzing the existing financial support channels of small and medium sized EMCos, it proposes the measures to improve various financial channels, such as, to set up the science and technology branch of bank; to establish the innovative mechanisms to promote the development of financial leasing; to start the EPC Trust; to open up the channels of listing of small and medium-sized EMCos to attract venture capital; to accelerate the development of guarantee industry; to encourage the innovation of insurance industry to develop new insurance products.

Berzelius failed to make use of Faraday's electrochemical laws in his laborious determination of equivalent weights.

eng_Latn

Approximation Properties of the Strong Difference Operators

In this paper , we study some approximation properties of the strong difference and study the relation between the strong difference and the weighted modulus of continuity

A novel 2- and 3-D space spectral domain analysis (SSDA) simulator for microstrip and CPW transmission line discontinuities is described. The characteristic impedance, effective dielectric constant, and S-parameters of different type of transmission lines and discontinuities shapes can be computed. The topology of structure and the computed results are displayed using a graphical interface. The simulator has been implemented on Sun Sparcstations. >

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Effects of physical models and simulations to understand daily life applications of electromagnetic induction

AbstractBackground: One of the topics students have difficulties in understanding is electromagnetic induction. Active learning methods instead of traditional learning method may be able to help facilitate students’ understanding such topics more effectively.Purpose: The study investigated the effectiveness of physical models and simulations on students’ understanding daily life applications of electromagnetic induction.Sample: The nine participants in the study were voluntaries from the fourth year of the physics education undergraduate programme.Design and methods: Lessons were designed to enhance students’ conceptual understanding of electromagnetic induction. Researchers developed multiple generator and simple electric motor models. These models and simulations about Faraday’s Law, magnetic field, magnets, generator and radio waves were used in lessons. The data were collected through open-ended questionnaire and semi-structured interview. Open-ended questionnaire was employed in a pre-test and a post...

The paper adopts the finite element analysis software to analyze the influence of different thickness and strength of the pile tip,concludes the influential law of the sediment thickness and strength on the dynamic signal,points out the correct judgment methods of the pile tip's location with the sediment,and proves the correctness of the method by comparing the measured signal.

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A Novel Space-Frequency Block Coding Scheme for SC-FDMA

Optimal PAPR reduction scheme for MIMO SC-FDMA-performance evaluation study

Completely Stale Transmitter Channel State Information is Still Very Useful

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We consider a simple conceptual model of random accessing to a receiver deploying multiuser detection techniques. The model is a simple extension of Massey and Mathys' collision channel without feedback in which a certain probability of recovery from collision is introduced. As the main result, we derive the slot-synchronized capacity region of this recovery channel and show that for sufficiently powerful multiuser detectors, maximal performance is achieved without any sophisticated transmission protocols. We also explore the effect of a simple fading model.

We study and compare the Shannon capacity region and the stable throughput region for a random access system in which source nodes multicast their messages to multiple destination nodes. Under an erasure channel model which accounts for interference and allows for multipacket reception, we first characterize the Shannon capacity region. We then consider a queueing-theoretic formulation and characterize the stable throughput region for two different transmission policies: a retransmission policy and random linear coding. Our results indicate that for large blocklengths, the random linear coding policy provides a higher stable throughput than the retransmission policy. Furthermore, our results provide an example of a transmission policy for which the Shannon capacity region strictly outer bounds the stable throughput region, which contradicts an unproven conjecture that the Shannon capacity and stable throughput coincide for random access systems.

E-commerce provides manufacturing enterprise with a direct access to market besides traditional sale channels, thus causing changes in the supply chain structure. A mixed-integer programming model based on optimal control theory for the new pattern supply chain of dual-channel market of manufacturing enterprise is developed. The simulation computing on the model's key parameters of the pricing of manufacturer and retailer with Monte Carlo optimal method is made, and the result of simulation shows that the profits of the supply chain can be improved radically when some conditions are met.

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Channel noise in modern perpendicular channels is well approximated by a linear jitter model. In this paper, we propose a new type of Viterbi detector matched to such a channel model. The differentiating feature of this detector is recursive evaluation of whitened noise strengths for survivor paths using the on-the-fly Cholesky factorization of path-dependent correlation matrices. We study the performance of the detector using the simplest example of low-density channels with intersymbol interference length equal to three. We find that at BER = 10-4, the new detector outperforms the data-dependent AR-detector of the comparable complexity by about 0.9 dB.

The authors delayed-decision-feedback sequence estimation (DDFSE) for uncoded PAM signals is considered. Estimates on the performance of the algorithm are given, and simulation results are provided for several examples. A more general form of DDFSE applicable to coded modulation systems is also presented. As an example, detection of trellis-coded QPSK (quadrature phase-shift keyed) signals over intersymbol interference channels is discussed. >

We prove that groups acting geometrically on delta-quasiconvex spaces contain no essential Baumslag-Solitar quotients as subgroups. This implies that they are translation discrete, meaning that the translation numbers of their nontorsion elements are bounded away from zero.

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In this paper, we study the performance of blind adaptive beamforming algorithms for smart antennas in realistic environments. A constrained constant modulus (CCM) design criterion is described and used for deriving a recursive least squares (RLS) type optimization algorithm. Furthermore, two kinds of scenarios are considered in the paper for analyzing its performance. Simulations are performed to compare the performance of the proposed method to other well-known methods for blind adaptive beamforming. Results indicate that the proposed method has a significant faster convergence rate, better robustness to changeable environments and better tracking capability.

The use of adaptive antenna techniques to increase the channel capacity is discussed. Directional sensitivity is obtained by using an antenna array at the base station, possibly both in receiving and transmitting mode. A scheme for separating several signals at the same frequency is proposed. The method is based on high-resolution direction-finding followed by optimal combination of the antenna outputs. Comparison with a method based on reference signals is made. Computer simulations are carried out to test the applicability of the technique to scattering scenarios that typically arise in urban areas. The proposed scheme is found to have great potential in rejecting cochannel interference, albeit at the expense of high computational requirements. >

Perfect Quantum Cloning Machines (QCM) would allow to use quantum nonlocality for arbitrary fast signaling. However perfect QCM cannot exist. We derive a bound on the fidelity of QCM compatible with the no-signaling constraint. This bound equals the fidelity of the Bu\v{z}ek-Hillery QCM.

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This work focuses on the impact of residual transmit impairments on the performance of Multiple-Input Multiple-Output (MIMO) systems with linear and non-linear receivers and precoders. We show that transmit noise significantly affects the performance of systems using precoding. Also, we show that non-linear MIMO receivers and precoders are more sensitive to transmit noise than their respective linear counterpart. Nevertheless, performance degradation can be noticeably alleviated if transmit noise is considered into filter optimization.

This study analyzes the impact of transmitter noise on the performance of multiple-input multiple-output (MIMO) systems with linear and nonlinear receivers and precoders. We show that the performance of MIMO linear and decision-feedback receivers is not significantly influenced by the presence of transmitter noise, which does not hold true in the case of MIMO systems with precoding. Nevertheless, we also show that this degradation can be greatly alleviated when the transmitter noise is considered in the MIMO precoder design. A MIMO testbed developed at the University of A Coruna has been employed for experimentally evaluating how much the transmitter noise impacts the system performance. Both the transmitter noise and the receiver noise covariance matrices have been estimated from a set of 260 indoor MIMO channel realizations. The impact of transmitter noise has been assessed in this realistic scenario.

This study analyzes the impact of transmitter noise on the performance of multiple-input multiple-output (MIMO) systems with linear and nonlinear receivers and precoders. We show that the performance of MIMO linear and decision-feedback receivers is not significantly influenced by the presence of transmitter noise, which does not hold true in the case of MIMO systems with precoding. Nevertheless, we also show that this degradation can be greatly alleviated when the transmitter noise is considered in the MIMO precoder design. A MIMO testbed developed at the University of A Coruna has been employed for experimentally evaluating how much the transmitter noise impacts the system performance. Both the transmitter noise and the receiver noise covariance matrices have been estimated from a set of 260 indoor MIMO channel realizations. The impact of transmitter noise has been assessed in this realistic scenario.

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Realistic channel models are crucial in developing future wireless systems. Channel sounding and consequently propagation parameter estimation are key tasks in creating such models. In this paper we present an estimator for the angular distribution of the diffuse scattering component that is frequently observed in channel sounding measurements. Finding the Cramer-Rao lower bound and comparing the variances study the large sample performance of the estimator. The simulations show that the variance of the proposed estimation technique closely reaches the Cramer-Rao lower bound for small sample size and for any number of antennas.

The increased popularity of array antennas for wireless communication, has inspired investigations of the spatio-temporal properties of the radio channel, among others the azimuthal shape of the scattering clusters. Based on a statistical analysis, we show that trying to estimate the shape of the scattering is an ill-posed problem and that the heavy-tailed power azimuth spectra reported in the literature may be an artifact stemming only from the measurement procedure.

We prove that groups acting geometrically on delta-quasiconvex spaces contain no essential Baumslag-Solitar quotients as subgroups. This implies that they are translation discrete, meaning that the translation numbers of their nontorsion elements are bounded away from zero.

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A Multi-User Receiver for PUCCH LTE FORMAT 1 in Non-Cooperative Multi-Cell Architectures

In this paper, we propose a new multi-user receiver processing for PUCCH LTE that counteracts the ICI in a non-cooperative multi-cell architecture. Using the fact that the received signal in PUCCH signaling follows a constrained tensor model, a multi-user receiver based on an iterative joint channel/code estimation and symbol detection is proposed. The interest in such a challenging setting relies on the overhead reduction among neighboring cells. Simulation results show remarkable performance gains of the proposed receiver compared to the conventional time-frequency decorrelator based receiver under the same conditions. We also show a performance comparison with the cooperative version of such a tensor receiver.

Abstract This study contributes to the literature on socially responsible investing by examining the diversification potential of commodities, specifically oil, gold and clean energy together with the Brazilian Corporate Sustainability Index (ISE). Multivariate GARCH models are used to model volatility spillovers and conditional correlation in pairs of stocks containing ISE. Specifically, A-BEKK and A-DCC models with spillovers are estimated. The models’ results are used to compute and analyze the optimal weights and hedge ratios for stock portfolio holdings. The greatest benefit from diversification is obtained through the acquisition of gold and then OVX.

kor_Hang

Reliable Communication Over Arbitrarily Varying Channels Under Block-Restricted Jamming

Time diversity for reliable communication is examined in an information-theoretic framework by investigating information transmission over an Arbitrarily Varying Channel (AVC) under maximum error criterion and introducing the concept of block-restricted jamming. Positivity of the maximum error capacity of an AVC is directly related to the invertibility of the corresponding channel matrix. It is shown that reliable communication over an AVC without additional coordination is possible under block-restricted jamming using repetition coding.

We study the Radiation-Induced Mismatch Enhancement (RIME) in 65 nm CMOS SRAM block designed for space applications. X-ray and heavy ion irradiation increase the number of non-rewriting cells.

eng_Latn

Performance evaluation of downlink LTE system with QPP interleaver for channel encoder

The design of the LTE physical layer (PHY) is heavily influenced by the requirements for high peak transmission rate (100 Mbps DL/50 Mbps UL), spectral efficiency and multiple channel bandwidths (1.25–20 MHz). Unfortunately, the existing WCDMA turbo interleaver does not permit an efficient high throughput implementation. That is why the 3rd Generation Partnership Project (3GPP) has proposed the quadratic polynomial permutation (QPP) interleaver to rectify this situation. In this paper, we will study the performances of QPP interleaver for LTE encoder channel for different configurations of LTE system and we study the effect of LTE channel turbo encoder for the transmission over a wireless multipath channel.

We propose an embarrassingly parallel, memory ecient inference algorithm for latent variable models in which the complete data likelihood is in the exponential family. The algorithm is a stochastic cellular automaton and converges to a valid maximum a posteriori fixed point. Applied to latent Dirichlet allocation we find that our algorithm is over an order or magnitude faster than the fastest current approaches. A simple C++/MPI implementation on a 20-node Amazon EC2 cluster samples at more than 1 billion tokens per second. We process 3 billion documents and achieve predictive power competitive with collapsed Gibbs sampling and variational inference.

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Transmission of ultrashort coherent pulses through the ionosphere

A study is made of scattering and absorption of ultrashort coherent radiation pulses when they pass through an electron gas, such as occurs in the ionised upper layers of the atmosphere.

This work describes a method for providing robustness to errors from a binary symmetric channel for the SPIHT image compression. The source rate and channel rate are jointly optimized by a stream of fixed-size channel packets. Punctured turbo codes are used for the channel coding, providing stronger error protection than previously available codes. We use a subset of the puncturing patterns that are well chosen and that leads to the best source rate. The rate allocation scheme presented obtains all necessary information from the SPIHT encoder, and does not require image decompression.

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Quantum particle swarm evolutionary algorithm with application to system identification

Based on quantum evolutionary algorithm and particle swarm optimization, a quantum particle swarm evolutionary algorithm is proposed. In this algorithm, quantum angle is used to represent the qubit, a new method learning from the idea of particle swarm algorithm is presented to determine rotation angle, He gate is taken to prevent from premature convergence. Applying this algorithm to identify system parameter, and comparing with conventional genetic algorithm and quantum evolutionary algorithm, the experimental results illustrate that the proposed algorithm has better performance than that of others. Meanwhile, it can also keep high identification ability to the system with the existence of noise.

The design of the LTE physical layer (PHY) is heavily influenced by the requirements for high peak transmission rate (100 Mbps DL/50 Mbps UL), spectral efficiency and multiple channel bandwidths (1.25–20 MHz). Unfortunately, the existing WCDMA turbo interleaver does not permit an efficient high throughput implementation. That is why the 3rd Generation Partnership Project (3GPP) has proposed the quadratic polynomial permutation (QPP) interleaver to rectify this situation. In this paper, we will study the performances of QPP interleaver for LTE encoder channel for different configurations of LTE system and we study the effect of LTE channel turbo encoder for the transmission over a wireless multipath channel.

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Ways to strengthen the weak spread spectrum signal to cancel a strong signal

(57) The invention provides a method for enhancing the tracking capability of the strong signal interference determined weak signal in the CDMA coded spread spectrum radio signal to the received weak signal including the intensity signal. A two signals modulation code is known to predict the weak signal. For strong signal strength and strong signals and weak signal determining an interference strength signal as a product (40) between the predicted strong signal interference (50). Measuring the intensity signals from both methods, it is possible to predict or obtain (10). It is possible to predict the cross-correlation with respect to the weak signal is selected as the predicted value for maximum reception strength range of weak signal value (60).

We consider the MIMO wiretap channel, that is a MIMO broadcast channel where the transmitter sends some confidential information to one user which is a legitimate receiver, while the other user is an eavesdropper. Perfect secrecy is achieved when the transmitter and the legitimate receiver can communicate at some positive rate, while insuring that the eavesdropper gets zero bits of information. In this paper, we compute the perfect secrecy capacity of the multiple antenna MIMO broadcast channel, where the number of antennas is arbitrary for both the transmitter and the two receivers. Our technique involves a careful study of a Sato-like upper bound via the solution of a certain algebraic Riccati equation.

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15MHz wide tuning-range OTA with −69dBHD3 and its application to Gm-C filter

This paper presents a high linearity operational transconductance amplifier (OTA). The OTA circuit combines the techniques of the double differential pairs (DDP) and Source-degenerated current mirrors to achieve high linearity in a large GM tuning range. With the Gm values ranged from 60µS to 130µS, the HD3 of the OTA is below −69dB at 15MHz. The OTA has been applied to a fourth-order linear phase low-pass filter for high speed system. The fourth-order low-pass filter with the cutoff frequency of 15MHz has been implemented. The filter is designed by 0.18-µm CMOS process technology, the HD3 performance is about −53dB, and the group delay variation is below 5% at cutoff frequency.

We consider the MIMO wiretap channel, that is a MIMO broadcast channel where the transmitter sends some confidential information to one user which is a legitimate receiver, while the other user is an eavesdropper. Perfect secrecy is achieved when the transmitter and the legitimate receiver can communicate at some positive rate, while insuring that the eavesdropper gets zero bits of information. In this paper, we compute the perfect secrecy capacity of the multiple antenna MIMO broadcast channel, where the number of antennas is arbitrary for both the transmitter and the two receivers. Our technique involves a careful study of a Sato-like upper bound via the solution of a certain algebraic Riccati equation.

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Preliminary Simulation Study of Doppler Reflectometry

A preliminary simulation study of Doppler reflectometry is performed. The simulations solve Maxwell's equations by a finite difference time domain (FDTD) code method in two dimensions. A moving corrugated metal target is used as a plasma cutoff layer to study the basic features of Doppler reflectometry. We examined the effects of the full width at half maximum (FWHM) of the electromagnetic waves and the corrugation depth of the metal target. Furthermore, the effect of a nonuniform plasma is studied using this FDTD analysis. The Doppler shift and velocity are compared with those obtained from FDTD analysis of a uniform plasma.

We assume a CDMA downlink multiuser scenario, where the base station is equipped with multiple transmit antennas, and each user has multiple receive antennas. For this setup we propose a new, computationally effective MIMO multiuser detector for frequency selective channels. We exploit the fact that the interference mainly comes from the spatial domain, while the residual interference is due to temporal dispersion and multiuser interference. This motivates us to suppress the residual interference in a linear fashion, while combating the spatial interference iteratively. This approach is an efficient performance-complexity tradeoff between fully iterative and linear detectors.

kor_Hang

Short communication Anxious apprehension increases coupling of delta and beta oscillations

Recent findings showing that anxiety is associated with enhanced coupling of EEG rhythms imply higher information exchange between populations of neurons associated with different oscillatory systems. In this study, influence of uncertainty on alpha–delta anticorrelation and delta–beta coupling was studied in 39 subjects (27 females) aged 19 to 30 years who also filled out the State Trait Anxiety Inventory. A measure of alpha–delta anticorrelation showed trait-like properties being uniformly higher in high trait anxiety subjects independent of experimental manipulation. Contrariwise, delta–beta coupling appeared only in anxiogenic situation both in high and low anxiety subjects. © 2006 Elsevier B.V. All rights reserved.

Selected mapping (SLM) and partial transmit sequence ::: (PTS) are well-known techniques for peak-power reduction ::: in orthogonal frequency-division multiplexing (OFDM). We ::: derive a simplified maximum likelihood (ML) decoder for SLM ::: and PTS that operates without side information. This decoder ::: exploits the fact that the modulation symbols belong to a given ::: constellation and that the multiple signals generated by the PTS or ::: SLM processes are widely different in a Hamming distance sense. ::: Pairwise error probability (PEP) analysis suggests how SLM and ::: PTS vectors should be chosen. The decoder performs well over ::: additive white Gaussian noise (AWGN) channels, fading channels, ::: and amplifier nonlinearities.

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Quasipotential equation in terms of rapidities and applications to relativistic bound-state and scattering problems

The review is devoted to an approach to the relativistic two-body problem in which a key role is played by the rapidity, the variable canonically conjugate to the relativistic relative distance. For a large class of quasipotentials, the analytic properties of the amplitude and wave function in the rapidity (energy) and orbital angular momentum are fully investigated. Several quantum-mechanical methods are generalized, giving the relativistic variable-phase method, a method for calculating the relativistic corrections, equations for the relativistic analogs of the scattering length and effective range, and a high-energy representation for the scattering amplitude, among others.

The design of the LTE physical layer (PHY) is heavily influenced by the requirements for high peak transmission rate (100 Mbps DL/50 Mbps UL), spectral efficiency and multiple channel bandwidths (1.25–20 MHz). Unfortunately, the existing WCDMA turbo interleaver does not permit an efficient high throughput implementation. That is why the 3rd Generation Partnership Project (3GPP) has proposed the quadratic polynomial permutation (QPP) interleaver to rectify this situation. In this paper, we will study the performances of QPP interleaver for LTE encoder channel for different configurations of LTE system and we study the effect of LTE channel turbo encoder for the transmission over a wireless multipath channel.

eng_Latn

A study on SNR estimation algorithms for channel state estimation in Communication Satellite Systems employing Fade Mitigation Techniques

Channel state estimation is one of the key processes carried out at the physical layer of Satellite Systems employing Fade Mitigation Techniques such as Adaptive Coding and Modulation ACM. An accurate and reliable channel estimate is needed to fully realize the capacity gains accrued by using ACM. In this paper the SNR estimation algorithms, which perform the role of channel state estimators, are analysed from a system point of view to get a quantitative idea on the number of received symbols needed to get a reliable estimate, and the impact of interference noise on it. A DVB type satellite system has been investigated for the study. An improvement over the Maximum Likelihood ML estimator using Bayesian principles is suggested and illustrated.

Rapid transfer alignment has strict demands for filtering accuracy and convergent velocity,but alignment accuracy is seriously degraded if there exist outliers in measurements.A novel approach to reject outliers is proposed,a small sequence sampled online makes up of a new sequence by forward symmetry extension,which is processed by wavelet threshold de-noising,then outliers can be detected,new measurements made up of previous measurements act as current inputs of Kalman filter,the degradation caused by outlier is removed,accuracy of filtering system obtained for the demand of transfer alignment.

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Time-Reversal Methods in Acousto-Elastodynamics

The aim of the article is to solve an inverse problem in order to determine the presence and some properties of an elastic “inclusion” (an unknown object, characterized by elastic properties discriminant from the surrounding medium) from partial observations of acoustic waves, scattered by the inclusion. The method will require developing techniques based on Time Reversal methods. A finite element method based on acousto-elastodynamics equations will be derived and used to solve the inverse problem. Our approach will be applied to configurations modeling breast cancer detection, using simulated ultrasound waves.

In this paper we study the performance of IEEE 802.11e enhanced distributed channel access (EDCA) priority schemes under finite load and error-prone channel. We introduce a multi-dimensional Markov Chain model that includes all the mandatory differentiation mechanisms of the standard: QoS parameters, CWMIN, CWMAX arbitration inter-frame space (AIFS), and the virtual collision handler. The model faithfully represents the functionality of the EDCA access mechanisms, including lesser known details of the standard such as the management of the backoff counter which is technically different from the one used in the legacy DCF. We study the priority schemes under both finite load and saturation conditions. Our analysis also takes into consideration channel conditions.

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Two Dimensional Wavelet Transform Model for OFDM System

In this paper, a proposed structure was suggested by replacing the blocks of the fast Haar Wavelet Transform (WT) with a two dimensional wavelet transform at the transmitter and the receiver sides in the Orthogonal Frequency Division Multiplexing (OFDM) model. This can be done by converting a 1-Dimensional vector into a 2-Dimensional matrix and process it by 2-Dimensional Wavelet Transform (2D-WT). The proposed method was applied on the OFDM in Additive White Gaussian Noise (AWGN) and flat fading channel. It was concluded that the proposed method gives much better Bit Error Rate (BER) performance than the conventional OFDM model based on WT. The simulation results showed that the proposd structure outperforms the other scheme in the carried tests at the AWGN and flat fading channels.

A weightedL2 norm is introduced in which Markov operators, e.g., associated with noisy maps, are contracting provided the kernel (i.e., the transitional distribution) is smooth enough. This results in strong relaxational properties of noisy maps. Similar to this norm, integral functionals appear useful when studying spatiotemporal chaos and random fields.

yue_Hant

The secrecy capacity of the MIMO wiretap channel

We consider the MIMO wiretap channel, that is a MIMO broadcast channel where the transmitter sends some confidential information to one user which is a legitimate receiver, while the other user is an eavesdropper. Perfect secrecy is achieved when the transmitter and the legitimate receiver can communicate at some positive rate, while insuring that the eavesdropper gets zero bits of information. In this paper, we compute the perfect secrecy capacity of the multiple antenna MIMO broadcast channel, where the number of antennas is arbitrary for both the transmitter and the two receivers. Our technique involves a careful study of a Sato-like upper bound via the solution of a certain algebraic Riccati equation.

We show <-50 dB AM-to-PM conversion over a wide photocurrent range in MUTC photodiodes. By controlling the AM-to-PM coefficient minimum, we generate 15 dBm microwave power with 60 dB AM rejection onto the microwave phase.

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Equation a*a = P(a) in some algebras with involution

In this paper, we show that if a is an element of C-algebra with a proper involution ∗, satisfying the equation a∗a=P(a), where P is a complex polynomial whose degree ∉{0,2}, then a is algebraic an...

The design of the LTE physical layer (PHY) is heavily influenced by the requirements for high peak transmission rate (100 Mbps DL/50 Mbps UL), spectral efficiency and multiple channel bandwidths (1.25–20 MHz). Unfortunately, the existing WCDMA turbo interleaver does not permit an efficient high throughput implementation. That is why the 3rd Generation Partnership Project (3GPP) has proposed the quadratic polynomial permutation (QPP) interleaver to rectify this situation. In this paper, we will study the performances of QPP interleaver for LTE encoder channel for different configurations of LTE system and we study the effect of LTE channel turbo encoder for the transmission over a wireless multipath channel.

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Scale Factor Dependencies in Quantum Dipole Coupled Lee-Goldburg Cross-Polarization Experiments

Lee-Goldburg cross polarization is used in many NMR experiments to determine internuclear distances. Distances calculated from frequency peaks in the dipolar coupled dimension are subject to scale factors. Experimentally determined scale factors can differ significantly from the theoreticalyy useful value described in the literature. In this work, simulations using SPINEVOLUTION explore effects of varying experimental parameters of frequency offset and cross polarization powers on $^{15}$N-H systems. Experimental data is used to corroborate the simulation. The scale factor is shown not only to depend on the offset frequency but also the cross polarization powers of the observed nucleus. Scale factors greater than one are shown to be possible in simulated data, though such factors obscure the determination of internuclear distances.

The design of the LTE physical layer (PHY) is heavily influenced by the requirements for high peak transmission rate (100 Mbps DL/50 Mbps UL), spectral efficiency and multiple channel bandwidths (1.25–20 MHz). Unfortunately, the existing WCDMA turbo interleaver does not permit an efficient high throughput implementation. That is why the 3rd Generation Partnership Project (3GPP) has proposed the quadratic polynomial permutation (QPP) interleaver to rectify this situation. In this paper, we will study the performances of QPP interleaver for LTE encoder channel for different configurations of LTE system and we study the effect of LTE channel turbo encoder for the transmission over a wireless multipath channel.

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Comb-like scattering realized by cylindrical plasmonic multilayers

We study the comb-like scattering response of cylindrical multilayered plasmonic nanostructures. Through oxide semiconductors with different doping levels, the comb-like scattering made up of multiple Fano resonances can be achieved with enough scattering excursion. Each sharp Fano resonance is associated with a degenerate state between a bipolar cloaking and a bipolar resonant scattering. When the semiconductor shell is thin enough, the scattering response is independent of the core and background materials, and even the size of the nanostructure under quasi-static conditions. The physical mechanism of the proposed comb-like device is explained by using full-wave electromagnetic simulation. Moreover, the scattering cross section of the device with a considerable thickness can exhibit reliable comb-like scattering under different thicknesses and material parameters, which is suitable for optical tagging applications.

Abstract Optical wireless communication technologies are finding a greater interest and wider attention within the research community of late. In this paper, we investigate the performance of a free space optical communication system over a generic propagation model called M -distributed channel in the presence of atmospheric turbulence. We analyzed a Subcarrier intensity-modulated free-space optical (SIM-FSO) communication system using DPSK and closed form expressions are derived using Meijer G function for bit error rate, channel capacity and outage probability for M -distribution.

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Measuring method of longitudinally detected ESR signal intensities against resonant frequencies at 250 to 950 MHz in a constant microwave field

Signal intensities of longitudinally detected ESR (LODESR) of 1,1-diphenyl-2-picrylhydrazyl powder were precisely measured at 250 to 950 MHz under a constant magnetic field microwave that was applied using a single-turn coil. The LODESR signal intensity was reduced linearly due to smaller Zeeman splitting. Because the noise level was constant, the sensitivity of LODESR was approximately proportional to the resonant frequency. As far as we know, this study represents the first attempt to measure precisely the relationship between the signal intensities and resonant frequencies of ESR in an experimental condition.

This paper considers channel estimation and achievable rates for the uplink of a massive multiple-input multiple-output (MIMO) system where the base station is equipped with one-bit analog-to-digital converters (ADCs). By rewriting the nonlinear one-bit quantization using a linear expression, we first derive a simple and insightful expression for the linear minimum mean-square-error (LMMSE) channel estimator. Then employing this channel estimator, we derive a closed-form expression for the lower bound of the achievable rate for the maximum ratio combiner (MRC) receiver. Numerical results are presented to verify our analysis and show that our proposed LMMSE channel estimator outperforms the near maximum likelihood (nML) estimator proposed previously.

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Closed-form approximation of Coded BER in QAM-based BICM Faded Transmission

In this paper we develop closed-form approximations for the coded BER in bit-interleaved coded modulation (BICM) transmission over Rayleigh fading channels. To obtain the desired expressions we apply the so-called saddle point approximation and use analytical forms of the probability density functions (PDF) of the reliability metrics. Numerical examples illustrate the accuracy of the proposed method.

This paper presents a suitable solution of studying methods on BRBs’ critical load with finite element software．The effects of the relevant factors on the BRBs’ ultimate bearing capacity are investigated, and some practical suggestions for the design and production are provided．

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Screening for the obstructive sleep apnea syndrome among guards in alternating work shifts

This study was conducted to appraise the prevalence of OSAS among individuals employed in alternating work shifts. The tentative diagnosis suggested by screening was validated by testing in a sleep laboratory; afflicted individuals received appropriate treatment and follow -up care. S creening conducted by administering a questionnaire suggested OSAS in 23 per cent of 218 subjects employed as sentries/guards in alternating work shifts. Individuals identified by screen ing underwent polysomnography in a sleep diagnostics laboratory in or der to confirm the tent ative diagnosis. Advanced OSAS is associated with abnormal enhancement of daytime sleepiness, which results in significant impairment of attention, mental concentration, vigilance, cognitive and job performance in afflicted individua ls employed in alternating work shifts.

Selected mapping (SLM) and partial transmit sequence ::: (PTS) are well-known techniques for peak-power reduction ::: in orthogonal frequency-division multiplexing (OFDM). We ::: derive a simplified maximum likelihood (ML) decoder for SLM ::: and PTS that operates without side information. This decoder ::: exploits the fact that the modulation symbols belong to a given ::: constellation and that the multiple signals generated by the PTS or ::: SLM processes are widely different in a Hamming distance sense. ::: Pairwise error probability (PEP) analysis suggests how SLM and ::: PTS vectors should be chosen. The decoder performs well over ::: additive white Gaussian noise (AWGN) channels, fading channels, ::: and amplifier nonlinearities.

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Multiple fault diagnosis by signature recognition of time-varying residuals

A Fault Detection and Diagnosis scheme able to deal with concurrent, incipient, sensor and actuator faults is presented. The architecture allows the diagnosis whenever the system's outputs are less than the number of faults. Residual generation is achieved by taking advantage from observer-based design, whereas the classification is performed by extending the concept of directional residual towards a time-varying setting. The scheme is designed to leverage the power from both model-based and data-driven approaches while mitigating their inherent drawbacks. The performances of the proposed strategy are evaluated by employing real data coming from the TEKOB1 Thermal Plant of Kostolac, Serbia.

Channel estimation is an essential component, in which channel state information playing very important role in wireless communications. But acquiring CSI in practice is a challenging issue for massive MIMO systems. To reduce the over burden for obtaining channel impulse response of huge Multi input multi output system channel reciprocity in TDD domain is suggested, because the forward link channel data can be derived from the reverse link signal without any feedback involvement. Because of mismatches at uplink, downlink channels maintaining reciprocity in TDD systems is impractical. We study the impact of multiplicative reciprocity error for precoders (Zero forcing, MMSE and MRT) performance along with channel estimation error. In this paper effect of RF mismatches impact on linear precoders is analyzed and simulated in terms of SINR versus SNR under additive white Gaussian noise.

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To camelcase or under_score

Assessing the value of coding standards: An empirical study

MIMO Signal Processing in Offset-QAM Based Filter Bank Multicarrier Systems

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Matrix Completion-Based Channel Estimation for MmWave Communication Systems With Array-Inherent Impairments

Low-rank matrix completion using alternating minimization

an empirical study of java dynamic call graph extractors .

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Performance Comparison of Linear Precoders for TDD Large Scale MIMO System with Imperfect Reciprocity and Channel Estimations

Channel estimation is an essential component, in which channel state information playing very important role in wireless communications. But acquiring CSI in practice is a challenging issue for massive MIMO systems. To reduce the over burden for obtaining channel impulse response of huge Multi input multi output system channel reciprocity in TDD domain is suggested, because the forward link channel data can be derived from the reverse link signal without any feedback involvement. Because of mismatches at uplink, downlink channels maintaining reciprocity in TDD systems is impractical. We study the impact of multiplicative reciprocity error for precoders (Zero forcing, MMSE and MRT) performance along with channel estimation error. In this paper effect of RF mismatches impact on linear precoders is analyzed and simulated in terms of SINR versus SNR under additive white Gaussian noise.

Firstly, according to the definitions in the ISO 9646 about the protocol conformance testing, some basic concepts of protocol conformance testing are presented. Secondly, the basic theory, definition, and properties of the labelled transition system (LTS) are given. By using the theory LTS, the test suite, test case and test generation are defined. Thirdly, the implementation relation which plays a important role in test generation is described. Finally, after giving the definition of the input/output system implementation relation, the implementation relation ioco is introduced, in which the input/output system and Δ transformation are used, and a test automation algorithm is given.

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Decoding algorithms for block codes over two-dimensional signal-constellations

We use the basic code construction by Huber (1987, 1989) with block codes over two-dimensional signal constellations to obtain powerful codes, which can be decoded efficiently. >

In this article, we study nonsmooth convex minimax programming problems with cone constraint and abstract constraint. Our aim is to develop sequential Lagrange multiplier rules for this class of problems in the absence of any constraint qualification. These rules are obtained in terms of ∊-subdifferentials of the functions. As an application of these rules, a sequential dual is proposed and sequential duality results are presented.

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Scalable Non-Binary Distributed Source Coding Using Gray Codes

In this paper we propose a bit-plane based, scalable distributed source coding (DSC) scheme for non-binary correlated sources. In the source coding part of DSC, the symbols are quantized and the quantization indices are converted into binary forms using Gray codes. The channel coding part encodes each bit-plane independently using turbo codes. The turbo decoder that works in binary domain is facilitated by an outer loop that captures the symbol-domain correlation. Simulation results show that, in asymmetric DSC of joint Gaussian sources, the overall system performance is greatly improved by using Gray codes. It is also demonstrated that progressive transmission is well supported

Abstract This study contributes to the literature on socially responsible investing by examining the diversification potential of commodities, specifically oil, gold and clean energy together with the Brazilian Corporate Sustainability Index (ISE). Multivariate GARCH models are used to model volatility spillovers and conditional correlation in pairs of stocks containing ISE. Specifically, A-BEKK and A-DCC models with spillovers are estimated. The models’ results are used to compute and analyze the optimal weights and hedge ratios for stock portfolio holdings. The greatest benefit from diversification is obtained through the acquisition of gold and then OVX.

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Study on Injuries to Hippocampus, Amygdala, Cerebral Cortex and Their Effects on Conditioned Taste Aversion in Total Body 60 Co-γ-irradiated Rats.

The objective was to study the effects of one time exposure to small clinically relevant dose of 60 cobaltgamma ( 60 Co-γ) radiation on histological changes in brain and consequent effects on conditioned taste aversion (CTA) in experimental rats. Rats were total body 60 Co-γ-irradiated in GammaCell; CTA to saccharin was assessed in terms of saccharin preference ratio (SPR) using a standardized two bottle regime; brain histology was performed as per standard procedures. Total body exposure to 60

Samples of Fermi, Semple, modified Semple, Duck embryo and tissue culture rabies vaccine were inoculated by different routes and in different doses into rabbits, mice and hamsters. The vaccines induced neither detectable interferon nor immediate protection against lethal challenge with CVS rabies virus.Under similar conditions, high but transient levels of interferon were induced in control animals of the same species with the polynucleotide complex Poly I.C. Hamsters but not mice were protected by Poly I.C.-induced interferon.No autointerference by vaccine with challenge virus was established. Vaccine-induced protection in mice was directly related to immune response.

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Incidences Of Endophytic Human Pathogens In Fresh Produce

The frequency of documented outbreaks of human illness associated with consumption of consumption of raw fruits and vegetables has increased in recent years. In present study 10 different fresh produce were proceed for standard plate count to evaluate the existence of endophytic bacterial human pathogens. This study revealed that out of the tested samples 60% were found to be contaminated with Salmonella spp. While 50% were loaded with endophytic Escherichia coli O157:H7. Maximum contamination was observed in leafy vegetables like spinach and coriander. While in Carrot, onion and radish pathogens was not observed. The potential internalization of pathogens in fresh produce is a concern of food safety and enlight the chances of epidemic outbreaks.

Information at your fingeritps. Alphabetical listing of more than 7,000 entries, with more than 600 clear, precise, detailed illustrations. Subjects include all important areas of environmental health and occupational safety: epidemiology, toxicology, risk assessment, statistics, instrumentation, medical terminology, basic sciences, and more.

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In late 2002, LSC hired an experienced consultant to study and report on existing systems in the legal services community and make recommendations on approaches LSC could adopt.

LSC secured the services of a consultant in late 2002.

In 2005, LSC hired a consultant with no experience to report on current systems in the legal services community.

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Effects of electronic health record use on the exam room communication skills of resident physicians: a randomized within-subjects study

The influence of patient-practitioner agreement on outcome of care

The Keeping of Records in General Practice.

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A Clinical Study on the Role of Pathyadya Vatak and Vidangadi Lepa in the Management of Ek-Kustha (Psoriasis)

Psoriasis is a common skin disease affecting about 1-2% of general population. The word psoriasis is derived from the Greek word "Psora" and "Iasis". Psora means Itch or scale and lasis means condition. Acharya Charak has described the involvement of Vata and Kapha in Ekkushtha. In the present study Ekkushta is compared with psoriasis due to its maximum resemblance with it. The trial drugs in the present study are Pathyadhya Vatak and Vidangadi Lepa which have not been studied on Psoriasis till date as per our Knowledge. The effect of Placebo was also assessed to understand the Psychosomatic nature of the disease. The results of combination of Pathyadaya Vatak and Vidangadi lepa were highly encouraging.

This Responsive Forest Governance Initiative Handbook defines basic democratic concepts and explains how democratic governance works. It then lays out responsive forest governance principles to be used when working with local government, parallelorganizations, and citizens. Finally, the handbook provides two assessment tools, the Preliminary Institutional Landscape Assessment (PILA) and the Local Environmental Governance Assessment (LEGA). This handbook is aimed at a general audience of practitioners, policy makers, activists, and students. It is designed to be used as a basic text in policy maker workshops and practitioner training courses and to guide policy and project assessments in the field. Policymakers and practitioners with more experience will be able to use this as a policy and project design tool and to guide implementation in project sites.

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A Legal and Ethical Research on the Establishment of Harmonious Medicine-patient Relationship

"Civil legal relationship" has become the prevailing doctrine about medicine-patient relationship,and the pertinent medical legal system is based on the doctrine.However,medicine-patient relationship is totally different from common civil legal relationship,and the model of medical litigation on the ground of the idea of civil lawsuit can't deal with medical dispute.In order to get medicine-patient relationship back to good track,we should focus on the settlement of the above-mentioned problems.

how the market capacity of scientific research at universities and enterprises operation organically,and realize the great leap forward development of China's science and technology industry,has become the urgent problem to study.Proceeding from our country enterprise cooperation research,combining the current situation,cooperation based on school enterprise cooperation model,through the analysis and Research on the different subject positioning strategy,the new model of enterprise and government,multi-party cooperation to provide advice and ideas.

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Design of Credit Transfer System in Adult Higher Vocational Education

Beijing Federation of Trade Unions Cadre College is making the experiment in Program of Credit BankThis program attaches importance to the design of dredit transfer system,such as system of cooperation between colleges and enterprises,committee system on specialty construction,specialty establishment system on the basis of professional ability analysis,transfer system of class hour and credit,flexible study system and credit accumulation system.

SUMMARY: In this second article, we continue the review of current health care economics as it relates to radiologists, specifically framed by topics defined by the Accreditation Council for Graduate Medical Education in the evaluation of neuroradiology fellows. The discussion in this article is focused on topics pertaining to levels 4 and 5, which are the more advanced levels of competency defined by the Accreditation Council for Graduate Medical Education Neuroradiology Milestones on Health Care Economics and System Based Practice.

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Research on SaaS and Web Service Based Order Tracking

To solve the order tracking of across enterprises in Dynamic Virtual Enterprise (DVE), a SaaS and web service based order tracking solution was designed by analyzing the order management process in DVE. To achieve the system, the SaaS based architecture of data management on order tasks manufacturing states was constructed, and the encapsulation method of transforming application system into web service was researched. Then the process of order tracking in the system was given out. Finally, the feasibility of this study was verified by the development of a prototype system.

e18655Background: Oncology navigation improves patient engagement and participation in clinical trials and may reduce barriers to cancer care.Despite growing evidence of value, oncology patient nav...

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[Structural-functional features of the large and small bronchi and differences in their inflammatory reactions].

Structural-functional features of bronchi reflect the differences in the inflammation in their walls. This should be taken into consideration by pathologists studying biopsies and by clinicians evaluating lungs roentgenologically and by ultrasound.

Developers of consumer health information (CHI) websites and pages in Taiwan have included: 1) individuals; 2) general hospitals; 3) disease-oriented associations; 4) government health administrative agencies; and 5) commercial corporations. General hospitals have developed the largest number of sites, but the quality of these sites differs widely. The unprecedented impact of health-oriented websites on medical care and the health of the public in general necessitates the establishment of credible instruments for the evaluation and rating of the quality of such websites and pages. In this paper, we describe the current status of CHI websites and pages in Taiwan. Suggestions for improving the content of CHI websites and pages are also proposed.

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Analysis of security techniques and issues in Data Warehouse

The importance of data warehouses in organizations has grown increasingly during this decade, and today they constitute one of the main trends for the development of information technology. Data warehouse system consolidates large data from multiple different sources and these are used by decision makers to analyze the status and the development of an organization. Data warehouses are becoming very vital and beneficial for many types of strategic decisions. Data Warehouse stores large amount of valuable data so it is very important to set a security, from primary stages of data warehouse design so that data must be secured in an effective fashion. Significance of security, security approaches and their issues have been provided in this paper.

Despite the fact that since 1985 the government of Quebec increased by 5.75 % on average the amount of money spent on healthcare per year, little improvement was noted. It is obvious that an optimal use of resources is essential to reduce waiting times and provide safer and faster services to patients. The use of new technology can contribute to improve the healthcare system efficiency. Our study aims to assess the impact of a medication distribution technology on 1) the performance of a health and social services center’s pharmacy, 2) the performance of one care unit in a nursing home and on 3) the medication-use process safety. To measure performance we were inspired by the Lean approach. The results show that medication distribution technology is considered as an effective way to significantly detect medication errors, to allow nurses to focus more on patients and pharmacy to react more rapidly to changes in patient medications.

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cv - slam using ceiling boundary .

iSAM: Incremental Smoothing and Mapping

Using institutional theory with sensemaking theory: a case study of information system implementation in healthcare

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Disseminated Intravascular Coagulation in Obstetrics: A Retrospective Study.

Disseminated intravascular coagulation is a life threatening condition in obstetrics with varied aetiology. Its diagnosis, prompt referral to a tertiary care centre and management with multidisciplinary care plays a key role in reducing the morbidity and mortality associated with it. In this retrospective study we have looked into the causes, complications, management aspects of DIC and also the perinatal outcome.

This article in view of the Hainan Provincial People’s Hospital clinical data conformity work actual situation, proposed a set based on the DOP technology clinical data conformity and the synthesis information retrieval plan, with emphasis discussed the difficulty, DOP platform technical aspect and so on superiority and characteristic, system realization goal, technical construction and design main point which the data conformity work faces questions, by achievement to large-scale general hospital clinical information system data conformity preliminary discussion.

kor_Hang

International standards for hospital communication systems.

A major problem for many Hospital Information Systems is separating modules to meet the information requirements of specialized parts before integration into one system. In most cases the interfaces are proprietary, leading to an enormous amount of implementation work for access to other systems. International Standards, such as a common language in Medical Communication, offer the possibility of reducing this variety and enhancing the information interchange by connecting more systems in shorter time with less cost.

Objectives:Many patients with diabetes and their care providers are unaware of the presence of the disease. Dysglycemia encompassing hyperglycemia, hypoglycemia, and glucose variability is common in the ICU in patients with and without diabetes. The purpose of this study was to determine the impact

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Crisis Management and Decision Support System Based on Searching

The Crisis Decision Searching Support System(CDSSS) includes the database,model base and knowledge base. In order to resource sharing and recycle,the database system supports storing,inquiring,statistics for raw data. Model base system constructs the processing model of the crisis,the treatment process and the results according to system requirements,so CDSSS can provide effective support for the decision-maker. The knowledge base is able to expand the decision-maker thought field,and provides high starting point analyzing platform.

In this study, we investigated the efficacy of a hierarchical approach to clinical instruction aimed at developing clinical techniques and promoting independent decision-making in student clinician...

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I am writing a study aim and needs to be really concise. For background, &quot;post-acute care&quot; is the next/second step care in these patients' management. In other words, their care/management has two phases, post-acute is the second phase. The aim should carry the two meanings: (1) to evaluate post-acute management of these patients and (2) to evaluate these patients' physical therapy use during post-acute management/in the post-acute phase. However, repeating post-acute makes the aim wordy. What words would be suitable for replacing the question marks? To evaluate post-acute management of brain trauma patients and assess their ??? physical therapy use. My own not so good ideas: of that time of that phase of that place

I'm searching for a word to indicate something that was current at some time in the past, but not necessarily now. For example: The doctor's report of June 2008 set forth the patient's ?{then-current} complaints.

At least it's my understanding that AES isn't affected by known-plaintext. Is it immune to such an attack, or just resistant? Does this vary for chosen-plaintext?

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im looking for information on taking a colorado civil service test for post office?

do you really think you need to study for that test? go to your local post office and they will help

In regards to what? Are you refering to the right to request an amendment of your medical record or something else? Just look up in the federal register 45 CFR Parts 160-164. Its quite simple one you know what your question really is.

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A case study on propagating and updating provenance information using the CIDOC CRM

The Open Provenance Model core specification (v1.1)

A qualitative investigation of patients' and caregivers' experiences of severe sepsis*.

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Workarounds Emerging From Electronic Health Record System Usage: Consequences for Patient Safety, Effectiveness of Care, and Efficiency of Care

SEIPS 2.0: a human factors framework for studying and improving the work of healthcare professionals and patients

Growth Hormone Insensitivity (Laron Syndrome)

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what are irbs

The International Council on Harmonisation (ICH) defines an institutional review board (IRB) as a group formally designated to protect the rights, safety and well-being of humans involved in a clinical trial by reviewing all aspects of the trial and approving its startup. IRBs can also be called independent ethics committees (IECs). An IRB/IEC reviews the appropriateness of the clinical trial protocol as well as the risks and benefits to study participants. It ensures that clinical trial participants are exposed to minimal risks in relation to any benefits that might result from the research.

Chesapeake IRB and Schulman IRB Merge to Establish Premier Independent Institutional Review Board for Research Chesapeake IRB and Schulman IRB, the research industry’s two most respected institutional review boards (IRBs), have combined to create Advarra, the premier provider of IRB, institutional biosafety committee (IBC) and research compliance services in North America.

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what are setac?

SETAC is a not-for-profit, worldwide professional organization comprised of more than 6,000 individuals and institutions in l00 countries dedicated to the study, analysis and solution of environmental problems, the management and regulation of natural resources, research and development, and environmental education.

SETA, is an acronym for Sector Education and Training Authority. The members of a SETA include employers, trade unions, government departments and bargaining councils where relevant, from each industrial sector. The Skills Development Act (1998) provides a framework for the development of skills in the workplace.

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what is research, research utilization, and evidence-based practice ppt

Research Utilization Definition It is the process of synthesizing, disseminating and using research generated knowledge to make an impact on or change in the existing practices in society. It refers to the use of some aspect of a study in a clinical application unrelated to the original research.

What are the different types of research studies? Comparative Effectiveness Research (CER) Comparative effectiveness research (CER) is a direct comparison of existing options available for treating a particular medical condition. It may compare similar treatments, such as competing drugs, or it may analyze very different interventions, such as surgery and drug therapy.

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difference between clinical trial and registry participation

Clinical trials registries collect basic health information from people who agree to be contacted about participating in future clinical trials or studies. A clinical trial is the study of new ways to prevent, detect or treat diseases or conditions.

In all clinical trials, the typical process starts with a screening period. The screening period starts with the signing of the informed consent. During the screening period, inclusion/exclusion criteria for the study participation will be checked / tested. Subjects who meet all inclusion criteria and do not meet any exclusion criterion will be eligible to be randomized (in randomized trial) or to be dosed (in non-randomized trial).

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what is the sicu and micu

The SICU is a 20 bed ICU that accepts and manages patients who have undergone a variety of general and specialty surgical procedures including all gastrointestinal procedures , some trauma ( the majority of trauma is managed in a dedicated trauma ICU ) , liver , renal and pancreas transplantation , as well as all surgical specialties other than ...

MICA: Maryland Institute College of Art. About MICA. MICA has become the leader in the education of artists and designers by fostering a community of talented, creative individuals committed to redefining the boundaries of art and design and to expanding their own vision and perspective through rigorous study.

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principal diagnosis is defined in the uhdds

The circumstances of inpatient admission always govern the selection of principal diagnosis. The principal diagnosis is defined in the Uniform Hospital Discharge Data Set (UHDDS) as “that condition established after study to be chiefly responsible for occasioning the admission of the patient to the hospital for care.”.

The circumstances of inpatient admission always govern the selection of principal diagnosis. The principal diagnosis is defined in the Uniform Hospital Discharge Data Set (UHDDS) as “that condition established after study to be chiefly responsible for occasioning the admission of the patient to the hospital for care.”.

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Business Intelligence & Analytics Education: An Exploratory Study of Business & Non-Business School IS Program Offerings

The Current State of Business Intelligence

How to calculate sample size for different study designs in medical research?

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what are college admission tests

The Medical College Admission Test® (MCAT®) is a standardized, multiple-choice examination designed to assess your problem solving, critical thinking, and knowledge of natural, behavioral, and social science concepts and principles prerequisite to the study of medicine.

What is the OAT? The Optometry Admission Test (OAT) is a standardized examination. It is designed to measure the academic ability and comprehension of scientific information. The OAT is sponsored by the Association of Schools and Colleges of Optometry (ASCO) for applicants seeking admission to an optometry program.

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is Wiley is enough to pass Cma

Description. The only IMA-approved study system for the CMA certification exam. Wiley CMA Learning System Exam Review 2014 + Test Bank provides you with a complete textbook plus one-year access to our exclusive online test bank containing over 900 multiple-choice questions.et ready for Test Day. Packed with key formulas, knowledge checks at the end of each topic, study tips, and practice questions, Wiley CMA Learning System equips you to easily pass the CMA Exam.

Dr. Wiley's. experience matches your search based on the following criteria:Based on total number of patients treated over the last 12 months; Specializes in Family Medicine; Board certified in Family Practice; No malpractice claims found; No sanctions found; No board actions found

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what is an indd file

INDD is a file extension for a page layout file used by Adobe InDesign, can also be opened using Adobe InCopy. INDD stands for INDesign Document. Contains formatting, content, styles, and linked files. Used for Desktop Publishing to create books, magazines, newpapers, flyers, etc. MIME type: application/octet-stream. Learn more about .INDD files: Visit the Adobe Indesign web page.

An Investigator IND is submitted by a physician who both initiates and conducts an investigation, and under whose immediate direction the investigational drug is administered or dispensed. A physician might submit a research IND to propose studying an unapproved drug, or an approved product for a new indication or in a new patient population. Emergency Use IND allows the FDA to authorize use of an experimental drug in an emergency situation that does not allow time for submission of an IND.

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Cite an Annual Report in APA Style

APA style is a writing format created by the American Psychological Association. It is used primarily in the behavioral and social sciences, but is also used in graduate and post-graduate study, not-for-profit organizations and for-profit businesses in the medical and social services arenas.

If you haven't filtered out your own IP in Google Analytics, your reports are probably way, way off. Analytics only help if they're accurate, and they're only accurate if you are only tracking the behavior of real users.

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Antenna Patch Design Using a Photonic Crystal Substrate at a Frequency of 1.6 THz

In this paper, the design of a macro strip patch antenna with a photonic crystal structure has been studied. The purpose of this study is to create a photonic band gap (PBG) structure that can be used to design macro strip antennas. With this method, we can increase the bandwidth several times and increase the antenna’s gain. The noise and radiation loss of the antenna will also be significantly reduced by the use of PGB technology. The bandwidth of the antenna is 0.6 GHz to 1.6 THz. At 1.4 THz, the gain is 7.703 dB. This antenna is widely used in high frequency microwave transmitter and microwave receiver systems.

This work presents three improved plasma display panel (PDP) sustainers for reducing current stress and nonlinear effect due to parasitic and distributed components. In the paper, a useful cell equivalent circuit model is first introduced to describe the behavior of PDP cell operation, and a widely used sustainer is then reviewed, on which three improved ones are proposed. The proposed sustainers can reduce currents through the switches and nonlinear effect due to parasitic and distributed components along the energy-recovery circuit paths. Derivation and operating principle of the proposed sustainers are addressed in detail. In addition, their related gaseous discharge mechanism in PDP cells is also presented. Hardware measurements have verified the feasibility of the proposed sustainers.

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High-performance circular probe-fed stacked patch antenna designs are explored through the use of numerical optimization. New trends are sought to aid understanding and to suggest novel solutions. We describe the optimization technique, present a new design trend relating efficiency and bandwidth to the choice of substrate dielectric, and propose and demonstrate a novel, optimized antenna achieving 33% bandwidth whilst maintaining greater than 80% surface wave efficiency.

We investigate the parameters that control the impedance and radiation performance of proximity coupled stacked microstrip patch radiators. In particular we explore the relationship required between the dielectric layers to achieve broadband behavior and also how the dimensions of the stacked radiators and the relative location of the feed can influence the impedance response. Bandwidths in excess of 20% can be achieved with careful layer design. We also investigate the dielectric layer configurations required to achieve broadband impedance responses when higher dielectric constant feed material is used. This latter study is of particular importance when designing MMIC compatible printed antennas.

Berzelius failed to make use of Faraday's electrochemical laws in his laborious determination of equivalent weights.

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A Dual-Polarization Slot Antenna Using a Compact CPW Feeding Structure

A dual-polarization coplanar waveguide (CPW)-fed slot antenna is proposed in this letter. By exploiting the even and odd modes of a CPW structure, two orthogonal polarizations can be excited in a slot aperture by the same feeding CPW, which results in a compact dual-polarization antenna design with very good isolation between the ports. The -10-dB reflection coefficient bandwidths of two polarizations are 670 MHz (27.9%) for one polarization and 850 MHz (35.4%) for the other, and the isolation between the two ports in the WLAN band is better than -32.6 dB. The radiation pattern and efficiency of the proposed antenna are also measured, and radiation pattern data are compared with simulation results.

This paper represents a channel length ratio optimization at a different high logic level voltage for 6-Silicon Nanowire Transistors (SiNWT) SRAM cell. This study is the first to demonstrate an optimized length ratio of nanowires with different Vdd of nano-scale SiNWT based SRAM cell. Noise margins (NM) and inflection voltage (Vinf) of transfer characteristics are used as limiting factors in this optimization. Results indicate that optimization depends on both length ratios of nanowires and logic voltage level (Vdd), and increasing of high logic voltage level of the SiNWT based SRAM cell tends to decrease in the optimized nanowires length ratio with decreasing in current and power.

kor_Hang

Compact microstrip diplexers based on a dual-passband filter

Novel microstrip diplexer structures composed of a dual-passband filter together with two matching circuits are proposed. By using only a single dual-passband filter, the proposed diplexer may be made compact when compared with the conventional diplexer configuration which has two single- passband filters. In this study, the dual-passband filter is realized using the parallel-coupled microstrip structures, and the matching circuits are developed based on the stepped- impedance transmission-line sections along with suitable open stubs. By suitably incorporating the open stubs into the matching circuits, a 3 rd-order Chebyshev microstrip diplexer with dual center frequencies at 2.36 GHz and 5.17 GHz and an acceptable isolation is implemented.

Abstract A new formulation for the C 0 quadrilateral and Serendipity plate elements is presented. It is an extension of the mode-decomposition approach that has been successfully applied in evaluating the C 0 triangular linear plate element. In contrast to the triangular element, the concept of an equivalent discrete Kirchhoff configuration is utilized. The elements are applied to several examples and the performance of these elements is shown to be quite good.

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Design of a parabolic reflector antenna with a compact splash-plate feed

Cryogenic 2–13 GHz Eleven Feed for Reflector Antennas in Future Wideband Radio Telescopes

Titanium allergy in dental implant patients: a clinical study on 1500 consecutive patients.

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Hilbert-Shaped Magnetic Waveguided Metamaterials for Electromagnetic Coupling Reduction of Microstrip Antenna Array

Robust method to retrieve the constitutive effective parameters of metamaterials

Is this app safe for children?: a comparison study of maturity ratings on Android and iOS applications

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Broadband Circularly Polarized Slot Antenna Array Using Sequentially Rotated Technique for $C$-Band Applications

Broadband Circularly Polarized Slot Antenna Array Fed by Asymmetric CPW for L-Band Applications

Programming jammed Codman Hakim programmable valves: study of an explanted valve and successful programming in a patient.

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UC-EBG on LTCC for 60-GHz Frequency Band Antenna Applications

A wideband array of stacked patch antennas using embedded air cavities in LTCC

mechanical behaviour of nickel - titanium rotary endodontic instruments in simulated clinical conditions : a computational study .

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Dual-Polarized, Differential Fed Microstrip Patch Antennas With Very High Interport Isolation for Full-Duplex Communication

In-Band Full-Duplex Wireless: Challenges and Opportunities

Agile Project Management Challenges Analyzing and Exploring Agile Project Management Challenges from a Practitioner Perspective : A Case study on HMS Industrial Innovation

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platforms rules : multi - sided platforms as regulators .

competition between networks : a study of the market for yellow .

Efficient design of a novel wide-illumination-angle Ku/Ka-band feed for reflector antennas

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A Wideband Circularly Polarized Rectangular Dielectric Resonator Antenna Excited by a Lumped Resistively Loaded Monofilar-Spiral-Slot

A New Wideband Circularly Polarized Hybrid Dielectric Resonator Antenna

Planning nervousness in a demand supply network: an empirical study

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Design of a dual-band printed slot antenna with utilizing a band rejection element for the 5G wireless applications

Dense Dielectric Patch Array Antenna With Improved Radiation Characteristics Using EBG Ground Structure and Dielectric Superstrate for Future 5G Cellular Networks

The spacing effect: A case study in the failure to apply the results of psychological research.

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A parametric study of laser induced-effects in terbium-doped borosilicate glasses: prospects for compact magneto-optic devices

Femtosecond laser processing in magneto-optical glasses

The PTPN22 Locus and Rheumatoid Arthritis: No Evidence for an Effect on Risk Independent of Arg620Trp

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Population grating induced by time-delayed, correlated, broadband light pulses in the strong-field regime

Theoretical study of ultrafast dephasing by four-wave mixing

No Detectable Broad-Scale Effect of Livestock Grazing on Soil Blue-Carbon Stock in Salt Marshes

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Dispersion-managed mode locking

Dispersion-managed breathing-mode semiconductor mode-locked ring laser: experimental and numerical study

Dispersion-managed breathing-mode semiconductor mode-locked ring laser: experimental and numerical study

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Volumetric thermal gratings were created in liquid and gaseous media and were used to efficiently deflect laser beams. In gaseous media, a low-input energy requirement and high switching efficiency make this type of switch a good candidate for a practical device. The switch is scalable to large apertures and has low insertion loss.

The beam propagation method (BPM) was used to study a 4/spl times/4 active switch with electro-optical effects in a titanium diffused lithium niobate (LiNbO/sub 3/:Ti) based directional coupler, and the results were used to develop the design. This design is capable of de-multiplexing wavelengths from two groups, 1100 nm to 1300 nm and 1500 nm to 1600 nm.

Berzelius failed to make use of Faraday's electrochemical laws in his laborious determination of equivalent weights.

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We developed 8 times 8 beam-deflecting optical switch with a switching speed within one microsecond utilizing electro-optic effect of PLZT. A newly-developed radial optical path design and putting-in packaging structure with a monolithic PLC platform were applied.

We investigate the feasibility of implementing an elementary building block for quantum information processing. The combination of a deterministic single photon source based on vacuum stimulated adiabatic rapid passage, and a quantum memory based on electromagnetically induced transparency in atomic vapour is outlined. Both systems are able to produce and process temporally shaped wavepackets which provides a way to maintain the indistinguishability of retrieved and original photons. We also propose an efficient and robust `repeat-until-success' quantum computation scheme based on this hybrid architecture.

Background ::: The optimal treatment for elderly patients with early-stage non-small cell lung cancer (NSCLC) remains inconclusive. Previous studies have shown that stereotactic body radiotherapy (SBRT) provides encouraging local control though higher incidence of toxicity in elderly than younger populations. The objective of this study was to compare the outcomes of SBRT and surgical treatment in elderly patients with clinical stage I-II NSCLC.

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Laser-induced fluorescence in the infrared from high-resolution Fourier transform spectroscopy

A comparison is made between stepwise and continuous scanning high-resolution Fourier transform spectrometers (HRFTSs) for the study of laser-induced fluorescence spectra of simple models in the infrared with a dense spectrum. The high-quality data show that the HRFTS is an excellent instrument for studying molecular structures from emission spectra. The stepwise instrument produces a better SNR in a given recording period.

We demonstrate an effective technique which allows one to characterize a small radius micro-ring resonator via low coherence interferometric measurement beyond light source bandwidth limitation. The experimental results show significant improvements in the extracted parameters.

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Influence of vibrational relaxation on the quantum efficiency of a KrF excimer laser

A theoretical analysis is made of the kinetics of electronic–vibrational relaxation of excimer molecules in the active medium of a KrF laser. Equations are derived to describe the dependence of the lasing quantum efficiency on the photon flux in the resonator, on the mechanism of formation of electronically excited molecules, and on the composition of the active gas mixture.

The generation and behavior of the fractal Koch array factor from a Kaiser window generator is studied. The main advantage of using Kaiser windows is that pattern parameters become much more flexible through altering the Kaiser window. The mainlobe width, current distribution, side-lobe ratio are now adjustable. Different reduced array structures can be obtained by using different threshold levels. Higher threshold values result in a highly reduced number of elements but they may highly distort the pattern and, hence, the multiband behavior. Finally, we study the effect of quantization of the feeding values. Quantization is necessary for implementation and simplification purposes. Several configurations of current distributions with the corresponding patterns are illustrated for different quantization levels. It is shown that moderate quantization keeps the same interesting similarity properties at several bands.

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Measurement of the quantum yield of triplet formation and short triplet lifetimes by the transient grating technique

A transient grating method for measuring the quantum yield of triplet formation (Φisc) and lifetimes of short‐lived triplet states is proposed. The method is based on a measurement of time dependence of a thermal grating signal with a nanosecond pulsed laser and a cw probe laser. The validity of the method is demonstrated by determining Φisc of a number of molecules whose Φisc are known. Advantages and limitations of this method are discussed in detail.

The design of the LTE physical layer (PHY) is heavily influenced by the requirements for high peak transmission rate (100 Mbps DL/50 Mbps UL), spectral efficiency and multiple channel bandwidths (1.25–20 MHz). Unfortunately, the existing WCDMA turbo interleaver does not permit an efficient high throughput implementation. That is why the 3rd Generation Partnership Project (3GPP) has proposed the quadratic polynomial permutation (QPP) interleaver to rectify this situation. In this paper, we will study the performances of QPP interleaver for LTE encoder channel for different configurations of LTE system and we study the effect of LTE channel turbo encoder for the transmission over a wireless multipath channel.

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