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Real-time video streaming communication is the key technology for intelligent device. In this paper, we discuss the video communication on the hardware platform of both IP vidicon and STB, and analyze the IP vidicon system software based on RTSP protocol on sever client. A self-adaptive stream transmission method for STB use client is proposed. It achieves the real-time video communication between...
The integrity of wind power output data is of great significance for the accurate prediction of wind power and the utilization of wind energy. In this paper, it is found that the power output affected by many factors, through the analysis of the mathematical model of wind turbine, and the solution of the specific expressions of the relationship with the traditional mathematical methods is hard to...
Under scenario of sports events and other kind of mass gathering, a large amount of people would travel along road networks, thus forming crowded pedestrians. In the crowds, the density would be so high that it might trigger mass panic and stampede, causing serious injuries and casualties. Therefore, it is necessary to understand pedestrian flow features on the corresponding network and then apply...
This paper aims to develop a new scheme for the classification of power-quality disturbances (PQDs). We propose to employ two discriminative dictionaries, designed based on the structures of PQDs, to respectively decompose a disturbance signal. Matching pursuit optimized by particle swarm optimization (PSO-MP) is used as the decomposition method. Reconstruction errors after sparse coding are employed...
The electromagnetic coupling problem, which is created by stator machine (SM) and double-rotor machine (DRM) of Compound-Structure Permanent-Magnet Synchronous Machine (CS-PMSM), has a bad influence on CS-PMSM performance. In order to solve this problem, a 100kW Radial-Radial flux CS-PMSM used for HEVs is designed, and the electromagnetic coupling is researched when CS-PMSM works in stable conditions...
The paper presents a novel framework about Multi-Resolution Model (MRM) of Logistics Node Location(LNL) based on the theory of Granular Computing(GC), which integrates the macroscopic, mesoscopic and microscopic logistics location problem. Simultaneously, the paper also discusses the concept of Attribute Reduction(AR) and establishes the application framework of LNL problem. In addition, in logistics...
Real estate developers is the real estate investment main body, however facing the high risk of the real estate market, the investment of science and rationality has become the key factors for the success of business investment. The investment process of real estate item contains a real option, but the traditional evaluation method has a serious defect. This paper uses the options game theory, to...
Financing risks of low-rent housing are influenced by many factors,and there are different levels of risk factors in different stages of development of the project. The index system of Financing risks of low-rent housing has been constructed in this paper where a index system of 5 criteria and 16 indicators has been proposed. Gray fuzzy comprehensive evaluation method has been elaborated and gray...
SnO2 nanomaterials were synthesized by an ultrasonic assisted precipitation method, and then Pd was doped on SnO2 by mechanical mixing method. SnO2 materials were characterized by X-ray diffraction. The micro-hotplate was used as the substrate of the sensor. Finally, the sensing properties were evaluated with a static state measuring system. It has been observed that the response of the microstructure...
Field experiment was conducted to investigate the accumulation of soluble organic nitrogen under intensive vegetable production pattern in Northeast China. The results showed that the amount of soil soluble organic nitrogen was increased by 114.2% and 184.2% in the treatments M1 and M2 compared with CK, and its corresponding percent accounting for the total soluble N was increased by 74.9% and 123...
The control of stator flux, torque angle, excitation torque, reluctance torque and total torque of permanent magnet synchronous motor (PMSM) direct torque control (DTC) system are studied in this paper. Simplified expressions to represent the change of these variables due to the application of voltage vector are given. Based on these expressions voltage vector selection area and the implementation...
Multi-stakeholders' cooperation is crucial to the emergency management for water disaster(WDEM). In order to discuss the cooperation problem, the paper mainly includes following aspects: (1) the network of heterogeneous agents about WDEM was built and game relationships among heterogeneous agents were analyzed; (2) the influence of behavioral strategies — cooperation or noncooperation — were observed...
The finite-element model of strained silicon PMOSFET was established based on the structure of small uniaxial strained silicon device. Using thermal strain method to simulate the parallel strain distribution of the channel through ANSYS simulation platform. The results present that: (1)the compressive strain on the channel surface is quite uniform along the direction parallel to the channel, the compressive...
An angle-resolved laser detector based on a pair of a non-mechanical scanning Fabry–Perot cavities is described. The differential signal from the two cavities is approximately independent from the polarization of the incident laser beam and it is used to determine the angle of incidence of the beam on the Fabry–Perot cavities. The F–P etalon is made of interferometric filter combination. A laser incident...
In this paper, direct power control based on the virtual flux (VF-DPC) of the three-phase voltage-type PWM rectifier is presented and the formation mechanism of the switching table is analyzed. In Matlab / simulink environment the model of the VF-DPC system is established. The simulink results show that the system has good dynamic response and a good way to achieve active power and reactive power...
The hierarchical threat model is proposed to address the issues that the active-n-m attacker model can't reflect the real capability of the attacker and the Dolev-Yao threat model is not fit for the security analysis of ad hoc routing. In hierarchical treat model, we appropriately extend the communication capability of the active-n-m attacker, and abandon the assumption that the adversary controls...
The spacial distribution of nodes in the Opportunistic networks is uneven in the real scenarios. There are some landmarks with high node density distributed in the network area. Based on the uneven distribution character of nodes in the Opportunistic Networks, a landmark aware content searching scheme (LACS) is proposed. The scheme proposed here is composed of two sub-schemes, latent spray scheme...
City is a complex dynamic and open artificial ecosystem, also the urban planning object of study and practice. It's especially important that the evaluation of urban planning because it has made great impact on environment society and economy. Environmental Impact Assessment (EIA) of urban planning and Implementation Evaluation (IE) of urban planning fall into the same category of evaluation research...
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