Research and application of the system of electric power engineering in the Huangling Mining 2 × 300MW power plant construction period
A lot of things that need to be managed in the thermal power projects. In this process, many factors are constrained and associated each other, That all aspects of works are plan organize, coordinate, control and management Legitimately are the guarantee of success.In the process of building the Huangling Mining 2 × 300MW power plant, through the use of the electricity project management system, preparation office, supervision, design, construction, and other units gather into a platform. The major event, the document marking, project, contract management, material supply, acceptance settlement integrate information platform. Preparatory Office can control of the project's funding, schedule, quality, safety In every moment. It can easily coordinated, Controled, and managed works.
A Framework of Information Management System for Construction Projects
Summary A comprehensive framework of information management system for construction projects in China has been established through extensive literature survey and field investigation. It utilizes the potential information technologies and covers the practical management patterns as well as the major aspects of construction project management. It can be used to guide and evaluate the design of the information management systems for construction projects in order to make the system to be applicable to a wide variety of construction projects and survive the changes in project management.
Numerical analysis and experimental observation of guidewire motion in a blood vessel model.
We have developed a computer-based system to simulate a guidewire in blood vessels for surgical planning, intra-operative assistance, and to facilitate the design of new guidewires. In this study, we compared simulation results with experimental results for validation of the simulation system. First, we inserted a commercial guidewire into a poly (vinyl alcohol) hydrogel blood vessel model using a two-axis automatic stage and measured the position of the guidewire tip and the contact force between the guidewire and the vessel. The experimental apparatus can be used not only for the validation of numerical analyses, but also as a simulation system. Second, similarly to the experiment, the motion of the guidewire in the blood vessel model was calculated when the proximal part of the guidewire model was pushed and twisted. The model of the guidewire is constructed with viscoelastic springs and segments, and the proximal part of the guidewire model is constrained by the fixed catheter model. Collisions between the guidewire and the vessel are calculated, and the contact forces are determined according to the stiffness of the vessel wall. The same tendency was seen in the trajectories and the contact force of both the experimental and simulated guidewire tips.