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Frequency band propagation characteristics measurement and modeling is a prerequisite for cellular network plan and infrastructure deployment. However, the generally assumed Okumura-Hata, and COST 231 large-scale channel model are based on transmission data collected in some specifical areas, which has application limitations for the other different cities. With the rapid development of 4G and study...
With the transition from Au wire bonding to Cu wire bonding, both bare Cu wire and Pd coated Cu (PCC) wire are now commonly used. Humidity reliability is particularly challenging for Cu wire bonding. In this paper, 18 um (0.7 mil) bare Cu and PCC wire are used in the wire bonding and HAST reliability test. Various factors can influence the HAST reliability outcome. The key factors examined in this...
Testing criteria are conditions which software testing must satisfy. It is of great significance to increase testing efficiency and ability of checking errors, if test paths numbers are not more and the coverage rate is high. Therefore, the highly effective testing strategy is very important. This paper introduces ?? behavior graph to describe software architecture. We propose seven testing criteria...
How to composite Web service is one the most important problems of next generation Internet (NGI) researching. In order to reuse complex service for service composition, multi-scale Web service composition (MSWC) is proposed. Inspired by word segmenting algorithm, service composition can be achieved by diving service request into several groups and mapping these groups into existed complex services...
Formalized testing is to improve quality of software product based on software architecture. It is an important research in the fields of software engineering. Testing criteria are conditions which software testing must satisfy. Therefore, the highly effective testing strategy is very important. This paper introduces pi Behavior Graph that describes software architecture. We propose seven testing...
Software architecture has emerged as an important sub-discipline of software engineering. This paper proposes a novel software architecture testing technology using pi calculus. pi calculus is of rigorous mathematical foundation and well-defined semantics. Petri net provides a graphical description technique that is easy to understand and carry on analysis. We make pi calculus combined with Petri...
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