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Human detection is a keyproblem in computer vision. Recently, some research has been focusing on the detection ofpedestrianusing infrared images. The infrared images have outstanding merit. It depends only on object's temperature, but not on color or texture. In this paper, the pedestrian crowd detection approach is proposed. The approach is compose of ROI blocks extraction and crowd block recognition. ROI blocks can be extracted with circle gradient operator and weighted geometric filtering. Crowd blocks are recognized by support vector machine, which combines histogram of oriented gradient and circle gradient. The experimental results show thatthe approach works effectively in different scenes.

This paper proposes an algorithm of electric vehicle drive system when any current sensor fault. Reconstruct rough stator current by decomposing the DC current. Test whether any sensor fault by comparing the rough reconstructions and measured stator currents.Switch to the reconstructed stator current after corrected from the fault current when a stator sensor faults. Switch to the reconstructed DC current from the fault current when the DC sensor faults. Simulation result verifies the effectiveness of detecting the fault and keeping electric vehicle operation normal.

Soil erosion in a catchment has becoming a serious environmental issue for an increasing damage to the surface ecological environment. To quantitatively simulate the sediment yield, the Soil and Water Assessment Tool (SWAT) was introduced in Tao River Basin. The investigation was conducted using a 8-year historical observed sediment data from 2001 to 2008. The performance evaluation shows that the simulated monthly sediment yield matched the observed data satisfactorily, with Re was less than 15%, R2 > 0.9 and Nash-suttclife (Ens)>0.8 for both calibration (2001-2004) and validation period (2005-2008) at two observed stations, indicating the validity of SWAT model for sediment yield simulation in the study area. The results of this study can be helpful for solving the soil erosion issue for water environmental protection.

In the traditional motor-side converter control strategy of double-fed induction generator, because of the stator resistance led to the observation of the accuracy of the stator flux is affected. Academia therefore put forward a lot of improvements, but little attention to the impact of the iron loss. Due to the iron loss exists of double-fed induction generator during operation, and the size of the iron loss change with the wind speed will led to the accuracy of Maximum Power Point Tracking. This paper presents a new control strategy and through MATLAB simulation demonstrates the effective of the strategy.

Segmentation of noisy images is one of the most challenging problems in image analysis. It hasn’t yet been solved very well. In this paper, we propose a new method for image segmentation, which is able to segment two kinds of noisy images. The experimental results prove that Artificial Bee Colony Algorithm performs better for two types of noisy images.

As global energy crisis is growing, energy-saving in architecture becomes more and more important. In addition, residential lighting especially living room lighting is an important part of energy consumption. In order to create green building, this paper analyzes energy-saving status based on joint investigations across China, Japan and Korea. It has been also compared the differences about energy-saving awareness and the selections of lighting equipments. The investigation results about residential lighting energy situation are reference to make proposals on lighting energy efficiency and quality improvement.

The status and development of the seasonal natural ice storage technology was introduced, and its technical feasibility was explored. It has not only advantages of energy saving and environmental protection, but also some limiting factors. The seasonal natural ice storage technology has a good prospect in some cold area and hot summer and cold winter area by calculation of cool energy balance in typical buildings.

The discharge of the shower wastewater is not only caused energy waste, but also caused a certain thermal pollution to the environment. The thermoelectric heat pump system, compared with the electric heating device, has a more effective output of heat energy. By recycling heat of shower wastewater, it can be both energy-saving and environmental. With a growing ratio of the energy consumption of hot water, the thermoelectric heat pump system may give us a new perspective in the area of waste heat recovery and energy efficiency in buildings.

On the basis of analysis of the principle of thermoelectric refrigeration and the research on the thermoelectric refrigeration technology and the thermal theoretical analysis of electronic components by domestic and foreign scholars, research on thermoelectric cooling of the uniform heat packaging surface from both the surface integral heat radiating and the local hot spot cooling of the chip by finite element numerical simulation and cooling both the chip and the heat from the whole surface of the local hot spots, using the finite element method of numerical simulation techniques Package uniform surface heat thermoelectric cooling study found the thermoelectric cooling hot surfaces in a uniform local cooling effect and temperature distribution, and pointed out that the chip thermoelectric cooling and thermal design layout surface will be in the future to improve the electroniccomponents of a hot heat important research direction.

With the widespread use of personal mobile communications location-aware devices, a large amount of data of trajectory produced and can be used in information services. These huge amounts of data involves the pattern of human behavior information and cause numerous researchers' research interests. As is known,the key to travel information mining from the trajectory data is the stay point recognition and semantic annotation.Overcoming the shortcomings on adaptability and resistance to noise exists in existed stay points identification methods, and also combined with the basic characteristics of the taxi GPS data,We proposed a way with an parameter optimization stratage to get the stay points from a single trajectory and the figure shows it really works well, with high precision and strong adaptability on the recall ratio and precision ratio.And then,based on this significant achievements,we applies a refined clustering method based on the clustering radius and frequency parameters and get the POI results.

In this paper, the pressurization of irregular ores was first discussed so as to make an analysis on the causes for the great difference between measured result and actual ores, and then a preliminary pressure experiment was made on a certain quantity of coal and gangue samples extracted from Du'erping Coal Mine through electronic universal testing machine. Therefore, the selective crushing and separation of coal and gangue was preliminarily tested through the testing machine so as to obtain the selective crushing pressure distribution curves of coal and gangue, and then the curves were drawn based on its numerical distribution. The two curves drawn in this way were placed in the same coordinate, and the optimized control of the separation and selection of coal and gangue was made according to the probability values in the coordinate, so as to find a reasonable pressure boundary value and also prove that the separation and selection of coal and gangue are with certain feasibility.

Beta-spodumene glass-ceramic powder was prepared by Sol–gel route. Tetraethyl orthosilicate (TOES), aluminum nitrate, lithium carbonate were used as starting materials. X-ray powder diffraction (XRD), thermal expansion coefficient (TEC), scanning electron microscope (SEM) and transmission electron microscope (TEM) were utilized to characterize the dried LAS gels and glass-ceramic blocks. The results suggest beta-spodumene is the only crystals phase in the prepared LAS glass-ceramics powder when sintering temperature is 950 °C. The average particle size of the beta-spodumene crystal is about 30 nm with a narrow size distribution both in prepared LAS glass-ceramics powder and block. The thermal expansion coefficient of moulding pressed blocky LAS glass-ceramics is lower than 0.6×10-6 oC-1.