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In order to realize the automatic control of emissivity measurement, a set of automatic control program of emissivity measurement system based on the labVIEW was developed. The program was composed of temperature control, motion control and measurement control. Using the modbus protocol, the setting temperature was transmitted to the thermostat and the real-time temperature of blackbody and sample...
Due to the features of environment of subway space, humans are lack of sense of position and direction, which will easily cause problems of spatial cognition disorder and low way-finding efficiency. This thesis takes typical subway space in Tianjin as main researching object. Based on public survey, it makes researches on subway users' normal behavior modes from anthropogenic factor, spatial factor...
This paper presents the design of a computer aided testing system aimed to the vane pump performance test, in which sensors and the PCI cards are at the bottom layer, the computer is the core of the control system, VC++ is the platform for software designing. In this design, the loading mode is used with proportional valve, PID control method and PWM technology service the temperature control, speed...
Climate chamber study, was performed by using 30 subjects living in the hot-humid area of China in the summer of 2009. The subjects dressed with the standard 0.6clo clothing were exposed to 6 transient conditions in the range of cool to warm and their subjective and physiological responses were collected. The results show that the subject's psychology should react than physiology faster, shorter Stable...
There exist three main tasks in housing management including housing and basic equipment maintenance management, environment management and safety management, which form the multitasking principal-agent relation between the owner and the property service enterprise. Based on the overall utility of property service, when the owner delegate property service enterprise with those tasks respectively,...
As the scale and amount of the government-invested projects increases, the phenomenon of auditing collusion is widespread, therefore the supervision of auditing collusion constitutes the tripartite game playing of supervisory authority, social intermediary and entity. In a process of single phase game playing, collusion cost is high, the probability of collusion is low, supervisory authority needs...
A combined process of coagulation-sedimentation/hydrolysis-acidification/separation tubular membrane bioreactor was studied for treatment of printing and dyeing wastewater in the experiment. The influence of main factors in each unit of the combined process on removal effect of pollutants was discussed, and the results showed that for simulated printing and dyeing wastewater Polymeric Aluminum Chloride...
Market competition distribution analysis is the basis for developing competitive strategy. Artificial neural network has highly nonlinear capability. This ability can help to handle nonlinear problems addressed in market competition pattern analysis. BP neural network is used to analyze market competition distribution in an industry. This method can improve the effectiveness and excludes errors brought...
The empirical mode decomposition (EMD) method proposed by Huang presents its own ability for processing nonlinear and nonstationary signals. However, this method also has limitation when the upper and lower envelopes, which are constructed by using a cubic spline function from given signals, deviate from the true ones because of the unknown accurate data at the end of the signal. This defect influences...
Accuracy and relativity of information accessed by search engine are not so satisfied. In order to enhance efficiency of information retrieval, semantic Web mining technology is suggested to discovery knowledge hidden in Web information resources and a semantic Web mining framework is constructed. Then its architecture and pivotal technologies are also discussed.
The microwave amplitude equalizer is interconnected by several substructures of absorptive coaxial cavity resonator. Many factors, such as the length of cavity, dimension of cavity and probe, materials, the location of metal micro-adjustable screw and attenuation screw, number of substructure, etc, should be considered in the equalizer design. Several innovative tuning methods are used in the equalizer...
In view of micro fuel cells, the silicon processes are employed for microfabrication of the micro direct methanol fuel cell (muDMFC). Using the MEMS technology we have successfully made single muDMFC as small as 8mmtimes8mmtimes3mm. The main reason for the use of MEMS processes is the prospective potential for miniaturization and economical mass production of small fuel cells. The double side deep...
This paper describes the status and effects of packaging in the MEMS devices. It is pointed out that there are several marked characteristics in the MEMS differences with compare with that of IC packaging. Meanwhile it presents several methods and developing trends of MEMS packaging with the particular emphasis on analysis of its applications, including the packaging means and testing results after...
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