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The assessment of River water quality is the basis of water pollution control, environmental management and environment planning. In this paper, combining analytical hierarchy process(AHP) with fuzzy mathematics, we make a synthetic assessment of river water quality, the indicator system of fuzzy synthetic assessment of rive water quality is established. AHP is used to determine the weight of indicators...
This article takes the Life Cycle Cost (LCC) of power generation equipment as the Optimization object, to establish a complete optimization program for equipment management in the equipment life cycle. The key links of the life cycle will be found by the technical and economical methods, and then certain technical and management methods will be used to realize the optimization of the key links. The...
With the increase in population and rapid urban sprawl in the major big cities in China, traffic monitoring in the inner-suburban areas is becoming an urgent problem to be solved. This paper proposes using cellular network for inner-suburban freeway traffic monitoring. Backgrounds of cellular network and wireless location technologies are firstly introduced. Related works including simulation tests...
An Unattended Detection method for monitoring the CO2 concentration in soil respiration is described. It is based on the gas pump and gas extraction with a dynamic air chamber assay, and the study of the relationship between data collected from on-line measurement of carbon dioxide and time, as well as the resistance to interfering. This method uses proposed utility line peak extraction method to...
This paper researched on KEELOQ algorithm and presented a wireless anti-theft system based on the KEELOQ technology. The system has one central controller and no more than eight monitors. When the whole wireless anti-theft system were designed, a physical testing about one hundred days was made. The results showed that the system works stably.
Based on the concept of multi-project management, it is pointed out that the key to multi-project management of real estate enterprises is to solve the strategic problems, resource problems and coordination problems. The functions of the project management office is evolved with the specific needs of enterprise project management, this paper will introduce the organizational form of Project Management...
This paper proposes the solution of information service and management based on China Next Generation of Internet (CNGI) for the regional sustainable development in the Great Mekong Subregion (GMS), especially in the Yunnan Province of China at this stage. The platform and the technical standards of information service and management are developed. The platform is consisted of next generation of the...
In view of low level of greenhouse automatic control system in China at present, this paper introduces a agriculture greenhouse environment monitoring system based on ZigBee technology, then gives the overall design of physical structure of system, network topology and its hardware and software designed of the composed modules. The PC software develop with Visual C++6.0 and SQL Server2000 that provides...
As urban road intersections are prone to traffic congestion and traffic accidents, monitoring the crossing of vehicles and predicting the state is needed to reduce traffic congestion, regulate driver behavior and prevent accidents. Background subtraction and mean shift tracking are used to track vehicles. The whole monitoring process is as following. Firstly, secondary selected strategy is used to...
Currently in China the level of coal mine roadway roof abscission layer monitoring is low, especially in the most coal mine the transmission and observation of the underground separation data are by manual labor or by cable transmission, there is a high cost for coal mine. This paper introduces a roof abscission layer monitoring system based on ZigBee which is adapting to environment of coal mine...
The dynamic laser antimissile problem is focused on with the very fast simulated annealing (VFSA) algorithm. The attacking ordering optimization plays an important role in the real-time application. This problem is much harder than the traveling salesman problem. There are many barriers for finding the global optimal solution, especially when the number of the targets is greater than six. The very...
Digital instrumentation and control systems has been widely used to high-risk system, which changes the context influencing human performance, cognitive processes and human-machine interaction, thus lead to new human errors and error mechanism. This paper constructs the extended human error analysis model for analyzing the possible cognitive and action errors. And then human error causal factors are...
For the current problems in the security situation of colliery equipment ,and based on non-linear relationship among the parameters of colliery equipment ,this paper presents a method for forecasting the safety of colliery equipment based on BP neural network.By using BP neural network in the colliery safety equipment monitoring and warning issues,we established a multi-index comprehensive monitoring...
Remote monitoring system based on GPRS is a modern monitoring system which is compose of radio communication technology, signal collection and computer network technology. This article introduces a wireless coal mine monitoring system based on GPRS communications technology. This system proposed in this paper has achieved a good result in the test.
Shaft lining thickness change constructions is common in shaft construction process where shaft lining fracture will increase. By implementing monitoring at shaft lining thickness variation regional, contrastive analysis based on the measured data, it is revealed that the stress fracture is associated with the ways of shaft lining thickness change. Compared with the gradual type construction method,...
There is some trouble with the existing coal mine main pumping equipments' monitoring and controlling systems.A new kind of monitoring and controlling system of the coal mine main pumping system is researched in this document. The calculation method of the pumping equipments' efficiency is analysed in this document.And the function and structure of the monitoring system is expounded in detail. The...
The paper introduces a new type of coal chemical industry, the automatic coal blending network system. The system includes the field automation production center and the centralized monitoring control center. The field automated production center uses the PROFIBUS-DP protocol to build a network, connect every controller to form the control network, through obtaining the flux feedback value of nuclear...
Nano gold-L-alanine modified electrode was prepared and its application to the electrochemical determinatino of formaldehyde in alkaline medium was studied by cyclic voltammetry. The experimental parameters were optimized, and a voltammetric method for determining formaldehyde was developed. The characteristics of CVs showed the electrocatalytic oxidation peak current of formaldehyde is proportional...
To explore the feasibility of ORP as the control parameter of one-stage completely autotrophic nitrogen removal system, this test studied the synthetic low C/N waste water, analyzed the correlation between the variation rule of concentration of ORP and the transfer of nitrogen compounds in system under different concentrations of DO. Results indicated that the ORP curve emerged a turning point when...
A Service supply chain occurs when a service provider outsources part of the service to a supplier. In service supply chains, as supplier offers service directly to final customers, it's hard for service provider to monitor or measure supplier's work. For this reason, the service provider has to offer an incentive mechanism to the supplier. This paper studies the optimal incentive mechanism in the...
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