Reliability and features of optical cable laying
We study the dependence of the optical fibre lifetime on the tension. A method for calculating the elongation of the optical fibre depending on the bending radius is proposed. Recommendations on the bending radius choice of the fibre in the design of optical networks to increase their reliability are given.
The kinematic and dynamic characteristics and system optimization design of optical cable based on backtracking method
Optical cable in modern communications is an important facility, and the laying of the optical cable is the key link in the installation. On the basis of analyzing the technological process and ensuring the requirements of optical cable laying, the kinematic parameters the tractor was first optimized and determined by the simplex method. analyzing the motion state and stress state of optical cable laying. E exponential function was selected as the movement mode of the cable to start and stop the cable. The kinematic characteristics of optical cable were programmed with the simplex method, and the optimal acceleration, uniform speed and deceleration distance were obtained corresponding to the three stages. Then the ideal parameters of cable cable’s velocity and acceleration were determined. According to this, the angular acceleration as well as other kinematic and dynamic characteristics of the roller slip roller was obtained ensuring these parameters being in coalescence with those of the tractor. The application study has shown that the system works well and meets the design expectation.
Data Driven Policy: The Case for Certification Research
This article describes the program of research being implemented to investigate the outcomes of certification in the U.S. and Canadian workforce and its relevance to the goal of providing policy makers with pragmatic, action-oriented recommendations. Such recommendations encompass policy issues of workforce production, regulation, distribution, financing, and oversight of credentialing organizations. Few studies exist to substantiate the association between certification credentialing and practice outcomes, thereby leaving policy makers, consumers, and nurses in a vacuum when pushed to protect the public through the credentialing vehicles. The Nursing Credentialing Research Coalition (NCRC) has embarked on a research program that will reveal the relationship between certification and its influence on a nurse’s personal, professional, and practice characteristics as well as those judged by consumers and employers. Selected findings and implications for policy are described. Certified nurses’ reports of early interventions for complications are important quality measures for policy.