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As the key to both offline and online business, consumers' trust to retailers always influences their purchase decision. In recent years, based on the traditional business, more and more click and mortar companies spring up. But could consumers' trust transfer from offline to online channel? And how? Extant researches lack deep exploration for these questions. In this study, introducing perceived...
For the coordination control problem of production, transportation and inventory in the presence of fuzzy random demand, fuzzy transportation time and fuzzy inventory costs, a coordinated optimal of transportation-inventory model under the control policy of shipping point is established. The possibility mean value concept and function principle of fuzzy number are used here to solve the problem. In...
Single image dehazing based on dark channel prior may encounter color distortion in bright region (such as sky region). Three methods are proposed to overcome the limitations of original algorithm. A transmission threshold firstly was determined. Then, by using the threshold to correct the transmission map in different ways and make it adaptive to fog, three algorithms can effectively deal with the...
In this paper, we present a new method to sketch the common among several images. Our method captures rotation invariance by extending the local self descriptor to rotation invariance and proposes a easy method to detect a roughly similar region across the images. Our method is composed of three stages: (i) Detecting a similar region which the proportion of the common is as large as possible across...
Research the collision detection of the unattended substation high-voltage warning area purposed to find a balance between real-time and accuracy, we proposed a detection algorithm based on the moving capsule body collide high-voltage warning area within the scope of the video crossing areas: centered on each camera, built a combination of polynomials of the high-voltage warning area polygon, used...
This paper proposed a control strategy of differential steering specialized for four wheel independent driving (4WID) EVs. Different from traditional single torque-based control method, this strategy is designed to use the advantage of fast speed control of in-wheel motor. Four wheels are regulated to desired differential speed based on the reference vehicle velocity. Combined with Ackermann-Jeantand...
This paper presents the analysis, design and simulation of a novel hydraulic pump driven by linear electric motor. The pump consists of two collaborative rectification cells. A cell contains a cylinder, a four-way spool valve and a linear electric motor. Its working principium is expatiated, and the kinematic flow rate of the pump is studied. The simulation model is developed by AMESim (Advanced Modeling...
Intelligent prosthesis is an important component of rehabilitation medicine works, and it plays a decisive role in people's lives. In order to reduce the unnecessary material and time-consuming, and improve design efficiency in the actual prosthetics physical prototype design process, this paper proposes a solution that studying virtual bionic hands in mechanical virtual prototyping, Adams software,...
This paper has presented a novel control method of DFIG connected to the grid under variable wind speed and dynamic mode during the system operation. The control method is deeply done in the DFIG converter's control. The parameter controls which applied in grid side control are electromagnetic torque and DC link voltage, whereas in the rotor side, the converter uses DFIG rotor speed and reactive power...
In an imperfect market economy, the risk of inflation is one of the most important economic risks. Using state space model and SVAR model, this paper examines the relationship between financial factors and the risk of inflation in China. The results show that the exchange rate, interest rate, money supply and financial assets affected the risk of inflation in China. Among these factors, the exchange...
Starting from the conventional coupled-mode theory and using the mode transformation method, a unified local mode approach is presented to analyze the chiral fiber long-period gratings (CLPGs) formed by twisting a high-birefringence fiber as an example of a chiral fiber with double-helix symmetry. Similarly, a helical-core fiber, as an example of single-helix CLPGs, is analyzed by using the ideal...
Thermal biological effect caused by millimeter waves is very complicated, there are many related parameters, including: the Incident Power Density (IPD), the frequency of millimeter waves, the exposure time, boundary conditions, blood flow, metabolic rates and so on. We built up a transient thermal multilayer model for heating of human skin by high power millimeter waves by finite volume method (FVM)...
Trust in Peer to Peer network has the fuzzy feature, which cannot be represented by most of current distinct mathematic theory based trust models. To solve the problem, an interest domain partition based P2P intuitionistic fuzzy trust model IFTrust is proposed, which uses interest domains to represent the interest biases of different peers, and uses trust factors set as well as trust levels set to...
Trust in Peer to Peer network has the fuzzy feature, and thus it cannot be described and handled using distinct mathematic model. To solve the problem, based on the advantage of using intuitionistic fuzzy theory to handle vague information, we propose a novel P2P trust model named IFTM (Intuitionistic Fuzzy theory based Trust Model), which uses membership, nonmembership and hesitancy degree to describe...
Traffic congestion in urban areas is posing many challenges, and a traffic flow model that accurately predicts traffic conditions can be useful in responding to them. With the limitation of infrastructure and the difficulty for real world experiment, traffic simulation is a good tool for the validation and future potential applications of the traffic flow model. This research presents a stochastic...
With the deepening of reform and opening up, Chinese modern accounting services had been received constantly development; however, in order to occupy the “limited” domestic market, the Chinese accounting firms should choose some new angles to construct their competitive advantage. This paper would like to focus on absorbing the customer knowledge's point to study on how to construct the accounting...
Shandong is one of the important energy resources base in the whole nation. It accounts for 6% of coal output, stands 5th in China and the energy resources consumption stands the first. With the rapid development of economic society and urbanization, there is a great amount of coal resources demand. The balance of coal supply can provide technique support to energy resource development plan of Shandong,...
A newly derived FV (fluidity variation) flow mathematical model was established to describe the fluid flow in low-permeability reservoir based on laboratory flow experiments. The numerical stimulation program was compiled and used to simulate an inverted nine-spot well pattern. A comprehensive comparison and analysis of Darcy flow and FV flow were provided, which has verified the development characteristics...
Characteristics vibration and stiffness of astromesh deployable antenna is mainly decided by circle truss. So vibration of circle truss is necessary to be analyzed. At first, analyze the structure of the astromesh deployable antenna, and set up mass matrix, stiffness matrix and force vector of link ending points with the method of finite unit. Then transforming-coordinate matrixes and expanding-coordinate...
The root lock mechanism is a key component of the space deployable mast. Reliability of movement of the root lock mechanism affects directly completion of function of the mast. At first, scheme of the root lock mechanism is analyzed and the mechanism is simplified into two-slider mechanism with a spring. Then movement of the mechanism is studied, and the method of multi-body dynamics of Roberson-Wittenburg...
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