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This paper focuses on the fast modelling of Switched Reluctance Machines (SRMs) through a combined Magnetic-Equivalent-Circuit (MEC) and Finite-Element (FE) approaches. The “easy” parts of the machine, in which the flux density is rather uniform, i.e. the stator and rotor yoke, and part of the stator and rotor poles, are modelled with reluctances, whereas the airgap flux and the local saturation of...
In this paper, a framework of generating dynamic fireworks with a steady scene as the background is proposed. We use the particle system for simulating the firework animation to obtain a video clip, which can then be modified based on physical dynamics and the dissemination of light source. To achieve this goal, the general-purpose computation on graphics processing unit (GPGPU) for rendering and...
Partitioning network, especially some DTN, can use Message Ferry(MF) scheme to restore network connection. Message TTL describes the maximum delay tolerance of transmission and messages with out-of-date TTL should be dropped. In this paper, we will study the problem of how to design the ferry's moving route dynamically to get high message delivery ratio under the constraint of message TTL, which we...
Most of ID-based signature schemes without trusted PKG are secure in the random oracle model. Design of ID-based signature schemes without trusted PKG which are efficient and provably secure in the standard model is suitable for applications. In this scheme, PKG is prevented from forging a legal user's signature because it only generates partial private key. The scheme is existentially unforgeable...
This paper describes a 3-D optoelectronic device model for organic bulk heterojunction solar cells. Three-dimensional full-wave optical simulation enables us to incorporate different modern light trapping techniques, such as subwavelength nanostructures, in a typical organic bulk heterojunction solar cell, while 3-D electrical simulation allows us to handle localized enhancement or reduction of polaron/charge...
Mobility Model has drawn more and more attentions since its important role in Delay/Disruption Tolerant Networks (DTNs) routing protocol performance evaluation. In this paper, we first present a survey of various mobility models, and then analyze the movement characteristics in the disaster rescue scenario in detail. After that, we introduce a novel mobility model, the Random Way Point with Attraction...
An Algorithm to calculate the diameter of triple-loop networks TL(N;1,s,s+2) is presented. C# serving as programming language and SQL Server 2000 serving as database are used to execute the algorithm. The diameter of such family of triple-loop networks whose N is given at random and s varied from 2 to N-3, can be calculated by simulating the hyper-L shape tiles. The diameter of such family of triple-loop...
Model selection relies on the attributes of models heavily. And the attributes of models may be certain or uncertain, so how to process these two kinds of attributes, and how to compare the similarity between the object problem and models in term of the attributes are the key issues in model selection. To solve the problem, a new method based on fuzzy recognition is introduced in this article. Firstly,...
Automotive Design for automotive products enhance market competitiveness play an important role' in the entire automotive product development process occupies an important position. For automobile body design, although it is now a virtual computer technology development is very fast, but it can give a true visual and tactile, only is a physical model, and its easy to modify sludge material, molding...
This paper revisits a traditional Ant Foraging algorithm and proposes a Cluster-based Softbots algorithm to address the performance issues caused by constraints of random autonomous search featured in most swarm intelligence-based algorithms. A simple hierarchy is introduced to regulate the unfolding of dynamically changing swarm-like behaviors. Comparative experiments for Ant Foraging and the proposed...
Trust and security are two important concepts in information security, but the difference between them is fuzzy. This paper proposes a new formal definition of trust for task-oriented information system. The new definition includes detailed information about trust itself. It defines trust of a component as the relationship of the expected behaviors and the trusted prerequisites, and puts forward a...
In recent years, researches have been done many works in the area of application of mobile computing technologies in construction to improve the low productivity of construction. This paper gives a brief review of the implanting of mobile computing in construction. It starts with the necessity of mobile computing in construction. It then reviews the researches on how people use mobile computing to...
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