Key Engineering Materials Vols. 480-481

Abstract: One kind of automatic wireless infusion control/monitoring system based on micro controller unit(MCU) and nRF401 had been designed and implemented to overcome the shortages in the processing of venous transfusion care. The system used AT89C52 single-chip computer as machine’s core, the realization of communication between a master computer and a slave computer with nRF401. Doctors could get the information through the wireless transmission to control and monitor the process of transfusion in time. According to RS232 communication protocol, the system implements the communication between one computer and multi-computer by adopting AT89C51 single chip microcomputer. This system has many advantages, such as low cost, high precision, small volume, convenience, low power consumption, good extendibility and so on.

Abstract: The decision-making process of reservoir operation is extremely complex and DSS (Decision Support System) has been used in reservoir operation management in many cases. The paper presents a decision support system for Three Gorges-Gezhouba cascade reservoirs multi-objective optimization. Our approach employs Matlab platform as system developing tool, which greatly saves programming time. And B/S mode user interface is adopted in our project since it is economical and easy to be maintained.

Abstract: In some companies, there are a lot of data exchange between head office and branch offices. Based on the situation and the actual requirements of a wooden door enterprise, a data management information system is researched and designed for the enterprise, which adopts B/S and C/S combined architecture as well as is developed on .net platform of Microsoft. The head office can monitor purchase, inventory and sales of products in branch offices in real time through the system to improve the efficiency of information management and to achieve the supervision with paperless office. It is of practical significance for the promotion of internal data management system of enterprise.

Abstract: The evaluation progress using the cloud model executes the transform between the qualitative object and ration and makes the evaluation model get more persuasion and to be more easily suitable. By using the cloud model, this paper maps the indefinite comment as different cloud droplets with fine variations, and maps the variation of each factor’s weight as correctable mathematic expectation of the cloud, and thus puts forward a comprehensive evaluation model based on cloud model. Simulation results show that: The new model also can give us a set of evaluation of the different factors impersonally and the content distinguishes from the traditional ways.

Abstract: The launch site security issues have been became the focus of the world’s research for several decades. Aiming at the filling system, the pipe vibration caused by the liquid hydrogen which flowed through the bend pipe was studied. And based on the computational fluid dynamics, the flow field was simulated according to the numerical simulation method. Then, the changes of flow parameters i.e. pressure and velocity at the bend were observed. The simulation results showed that: (1) the speed and the pressure of the liquid hydrogen would have a sudden change which was caused by flow direction and it would create a vortex which could erode the pipe and lead to the pipe vibration in the region. As a result, the pipe would deteriorate caused by the vortex. (2) the flow field analysis using the numerical simulation method was feasible. And the method provided a flow field distribution directly and design basis for filling system pipes.

Abstract: The real estate has become an important pillar industry in our current, green ecological real brand is one of the most important intangible assets of the real estate enterprises. How to appraise the value of green ecological real value is the difficult problem of the real estate enterprises and theory horizon, and is also the problem of the real estate enterprises very concerned about and urgent need to solve. This article analyzed the traditional methods of assessing the brand value assets ，the new appraisal method of green ecological real estate brand value is proposed based on the economic added value and the weighted average cost of capital model and β coefficient , the economic added value more reflects the objective earning power of green ecological real estate brand , the weighted average cost of capital models and β coefficient reflects the actual performance of green ecological real estate, the evaluation results approach the objective and reasonable results, The method provides an important technical support and guarantee for appraising the value of green ecological real estate brand.

Abstract: It is important to evaluate the independent innovation capacity of high-tech industry scientifically, which could accelerate high-tech industry to become the main body of regional economy. In this paper the evaluation indicators of the independent innovation capacity of high-tech industry are reduced with the distinction matrix algorithm of the attribute reduction based on rough set theory. And then, projection pursuit model method based on genetic algorithms is used to get the synthetic evaluation. High-tech industry of Henan province as a specific example is given according to the evaluation index system with 4 primary indicators and 12 secondary indicators for independent innovation capability. It is proved that the evaluation method is feasible and effective.

Abstract: A high speed spectral optical coherence tomography (SOCT) system was demonstrated. An achievable scanning speed of 92k line/sec has been reached and it can acquire 3-dimensional data sets in ~3 second. The axial resolution of ~13μm and lateral resolution of ~16μm have been realized. The system is capable of a theoretical depth measurement 3.2mm in air. We also measured the sensitivity performance corresponding to difference depth and it demonstrated that our system can differentiate signal form noise at 3mm pathlength difference. Using the system, human palm skin was measured in vivo.

Abstract: We investigate the problem of a widespread occurrence of an unknown worm in vehicular networks at equilibrium traffic. We introduce an intelligent microscopic mobility and consider the fading effect in channel model; meanwhile we design a new series of rules to imitate the most relevant aspect of medium access control. The extensive Monte Carlo simulations uncovered the impacts of the transmission range (from minimum to maximum), the velocity (from free to congested), and the vehicle density (from sparse to dense) on worm spreading.

Abstract: The most commonly used indoor fire extinguishing systems are automatic sprinkling fire extinguishing systems. However, such systems have disadvantages of difficult to maintenance and low in reliability. The design of a composite indoor fire distinguishing system has been proposed, which consists of a fixed fire early warning subsystem and a moveable fire detecting and extinguishing subsystem. The moveable fire detecting and extinguishing subsystem is established on an automated guided vehicle. The system is fully autonomic, robust, and easy to maintenance. In addition, it can promptly and precisely detect fire in its early stage, and extinguish it in time. Experiments have demonstrated that the system is applicable.