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With the increasing complexity and uncertainty in requirements engineering (RE), the impact of power relationships between stakeholders becomes critical to the success of requirements engineering process, especially in requirements negotiation to resolve conflicting requirements. In this paper, we make use of the basic principles of requirements negotiation and define reasoning rules to reason about...
Let T denote the set of all structurally inequivalent finite rooted ordered binary trees. For each t ∊ e T, let D(t) be the unique minimal DAG representation of t, and let r(t) ∊ (0,1] be the ratio of the number of vertices of D(t) to the number of leaves oft. A lossless prefix encoder φ on {D(t) : t ∊ T} is proposed, and then a two-step lossless encoder φ∗ on T is defined by φ∗(t) = φ(D(t)) for t...
For a non-minimum phase system, a multiple models direct adaptive controller using Dimension-by-Dimension technology is presented. The multiple models are constituted with controller directly, which lower the calculation and avoid the ill-condition matrix solution. The multiple models are composed of multiple fixed controllers, one free-running adaptive controller and one re-initialized adaptive controller...
Traditionally, the superluminal behaviors of evanescent waves have been studied by means of tunneling time theory. Seeing that evanescent waves are identical with near fields, to present a heuristic and straightforward explanation for the superluminal behaviors of evanescent waves, in this paper we study the superluminal behaviors of the near fields of an electric dipole antenna, and obtain the results...
Some basic properties of recycled steel fiber aggregate were tested, such as surface features, water absorption, apparent ensity, crushing index, cube compressive strength and so on. Recycled steel fiber aggregate were used to replace the natural aggregate by 0%, 25%, 50% and 100% proportion to make concrete. Afterward, compressive strength, splitting tensile strength and flexural strength were investigated...
In this paper, a novel miniaturized band-reject frequency selective surface (FSS) is proposed, in which a unit cell consists of one metallic plane of a novel interleaving pattern and a dielectric substrate. Simulation results show that dimension of the basic structure is only 0.081λ×0.081λ, and the miniaturized performance can be further improved by changing widths of strips, distances between adjacent...
In this paper, a novel double-layer frequency selective surface (FSS) is proposed. Each layer consists of two semi-circle fractal elements put into a circular structure on a dielectric substrate. Simulation by CST MICROWAVE STUDIO® is conducted to testify the characteristics of the FSS. The results show that the novel structure has three resonant frequencies in the frequency band 0-30GHz with relatively...
A novel bandstop Frequency Selective Surface (FSS) using octagonal fractal structures is presented in this paper. By bending the edges inside and outside, the cell perimeter of the FSS can be effectively elongated, and therefore miniaturize the resonant frequency. And because of the symmetry configuration, the proposed FSS has achieved excellent stability for different polarizations and incident angles...
Innovation is a new way of doing something. It may be incremental, radical, or revolutionary changes in thinking, products, processes, or organizations. Different from invention, which is an idea made manifest, innovation is ideas applied successfully. In this work, we strive to apply innovative Radio Frequency Identification (RFID) systems to special education school campus because in this modern...
Some problems of file uploading always come across at developing of Web site. In this paper we introduced a way of uploading file which edited with VB.NET in the experimental systems. We emphasized to discuss the theory of uploading file which edited by VB.NET, to achieve the key factor of file uploading based on Web mode , principally to comprehend devising project and assaying theory and editing...
Artificial immune systems (AIS) have been widely used in many fields such as data analysis, multimodal function optimization, error detection, etc. In this paper, we introduce a novel artificial immune systems approach for diagnosing faults in a network of processors under the PMC model. We investigate how AIS can be used for system-level fault diagnosis. Our theoretical analysis and experimental...
The ldquoe-Taiwan Programrdquo implemented by Taiwan government is aimed to show the e-advantage in peoplepsilas life and bring about essential benefits. This research follows the Quality of Life measurement system developed by the ldquoe-Taiwan Programrdquo, which including Quality of Life indicators and e-Life indicators. By using telephone interview, 3,563 respondents aged 15 and above were validly...
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