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The Silicon Valley is home to many successful tech companies and is considered the incubator of innovation. The purpose of this paper is to investigate the circumstances and reasons why the Silicon Valley is so prosperous. After grouping tech companies into six major categories, a variety of parameters, such as revenue, profit, andreturn of investment, were used throughout this analysis to determine...
A new CAD software for the sensitivity properties of fiber gratings is reported, which takes the three-layers uniform wave guide as grating guide model. This software uses the transfer matrix method and the coupling mode equation to calculate the spectrum of Bragg grating and long period grating. Based on the Visual C++, the sensitivity properties about temperature, tension, refractive and other sensing...
In order to meet the demand for a large number of creative engineering talents in industry development under the background of economic globalization, Education Ministry formally started CDIO education model in 2008, and first made experiments on eighteen domestic universities. After exploration in descriptive geometry and mechanical drawing, the content of our course is boldly reformed, which enhances...
For many Operating Systems and device drivers, memory copy is the most time-consuming operation which has always been paid special attention. In this paper, we propose a processor DMA based memory copy hardware accelerator with the goal to reduce the instructions executed on CPU, and exploit the parallelism between computing and data transfer in memory copy. This is accomplished by taking advantage...
With the fast development of Internet, the runtime environment of computer software becomes on-limits gradually. Software dynamic evolution is going to be a hot research topic in software engineering area. The concept, which is called separation of concerns during the development of aspect-oriented software, can well support the dynamic evolution of software. Motivated by this, we propose a new model,...
This paper presents experiments aims to built a platform to monitor and control PLC-based processes over PROFIBUS-DP network. The platform is built using industry-standard off-the-shelf PLCs. Integrated with each PLC are communication processors that can be used for connectivity to the network and to a DP modem. The communication processor module used in this work provides an industrial compatible...
It is known that software system plays an important role in the information society, and high trustworthiness is a key requirement for many types of systems, such as safety critical systems, telecommunication systems, and mission critical software systems. How to improve the trustworthiness to better serve our society has become an important research focus among areas of software theory and technology...
As is known to all, software system plays an important role in the information society, and high credibility is a key requirement for many types of systems, such as safety critical systems, telecommunication systems, and mission critical software systems. How to evaluate the software credibility has become an important research focus among areas of software theory and technology application. Considering...
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