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Various malicious methods for a website to get more popularity than it deserves are mainly classed into two types, one of which is link-based spam. Mainstream link-based anti-spam algorithms, including ranking algorithms and spam algorithm only count the number and quality of links of a page to identify a spam page, with some of them using a whitelist or a blacklist. This paper proposed a PageRank-improved...
The steering behavior of lane change during overtaking on the freeway is experimentally investigated based on a six DOF moving-based driving simulator. 12 experienced participants are involved and instructed to overtake leading vehicles in specially designed scenarios, and their first lane changing of the overtaking is analyzed. The influence of type and speed of leading vehicle on steering behavior...
The development of high-fidelity real-time simulators for research and design are playing an important role in commercial and military applications. High performance computers made an increase of accuracy of simulation possible, but the complexity of simulation still rules the capability of operating in real-time. Based on the common development framework of Direct3D (D3D) DXUT to help the developers...
This paper presents an improved decoding algorithm for raptor codes in 3GPP MBMS. The algorithm has linear time decoding performance and solves the problem that the existing technology can not realize incremental decoding with the receiving symbols. In scheme of 3GPP MBMS, once the decoding fails, it must restart the decoding process. The algorithm we proposed can continue decoding until it reaches...
The ability to remove arsenic (III) by P.vittata and C.demersum in hydroponic condition was investigated in this study. The results showed that P.vittata is more tolerant under the As press with high concertration.The maximum As concertration that two speices can endure is 10 mg/L. The maximum qe(As bioaccumulation per mass of adsorbent) of P.vittata and C.demersum is separately 9266.67 mg/kg and...
Based on the structure of the three-stage complete second-order polarization mode dispersion (PMD) compensator, the combination of the DIRECT algorithm and the Hooke & Jeeves algorithm is advanced as the optimization scheme for the control parameters of it. The optimization scheme is validated by the simulation of the measurement values of the degree of polarization (DOP) in the optimization process...
Based on the literature study, and according to the reality of the linear and nonlinear characters of the entrepreneurial behavior, entrepreneurial behavior, this paper raised a new concept of "Interruption-Continuation Point" of the entrepreneurial activities, which refers to the key events and time may appear during the entrepreneurial process, such as stagnation, suspension and reverse...
In order to analyze injury mechanism of occupants in buses when rollover accidents occur, causes of rollover accident and rolling process were analyzed. And rollover accidents were classified to tripped rollover and un-tripped rollover, critical collision force model and rollover velocity model were established. Roller model was applied to calculate vehicles position. Main injured parts of occupants...
The ability of Gaussian Process to flexibly and accurately fit arbitrary, even highly nonlinear data sets has lead to considerable interest in their application to many areas. Firstly, the usefulness of Gaussian Process models for application to complex systems metamodeling is proposed. Secondly, several approaches for training Gaussian Process models are examined, which include local optimization...
Practical Experience has shown that the agglomeration and successful rate of the entrepreneurial activity in the industrial clusters was much higher than non-industrial clusters, the aim of this paper is to contribute to a greater understanding of the process about how the industrial cluster promote the entrepreneurial activities functioning as the incubator of the entrepreneurs and enterprises. By...
Traffic accident often induces traffic bottleneck and affects other vehicles driving. The lengthways region around accident scene becomes dangerous because of comprehensive traffic behaviors, such as lane changing, vehicle merging and vehicle following. In order to research the methods of management in traffic accident scene and avoid secondary accident, evaluation index system of safety in accident...
Based on the heat released rate, oxygen-enriched combustion was studied on the gasoline engine. Combustion model and emission model were put forward, to study the power performance and emission performance of gasoline engine, which would be affected by the oxygen concentration in the air entered into the engine. The model were used to analyze the power and emission of oxygen-enriched combustion gasoline...
In order to study the flame propagation progress in oxygen-enriched combustion engine, a quasidimensional model of oxygen-enriched combustion engine has been propossed in the paper, and a simplified model of flame propagation, based on the laminar flamelet approach, has been developed too. The model is evaluated against detailed measurements in a two-dimensional laminar propagation flame on a spark-ignition...
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