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The measurement equipment provides basis for relay protection and controls, so it is crucial to ensure the measuring precision. A digital and analog mixed test scheme based on a computerized model and signal generator has been designed in this paper, the test scheme uses the simulation software to produce kinds of test signals, then transfers them to analog signals meeting the requirement of the device...
Based on the literature review, the technology spillover mechanism can be concluded to four categories: demonstration-imitation effect, competition effect, correlation effect and training-flow effect. The technology spillover is always hysteretic. On the basis of multi-period lagged effect of multinational corporations' technology spillover, the paper used panel data and regression method, analyzed...
Soil salinization is one of the most prominent ecological problems of coastal plain in Northern China, which has degraded the ecosystem services of the region. This study, taking Huanghua County of Hebei Province in Northern China as a case study area, introduced the technology system and related technologies for subsurface drainage systems with an aim to optimize the ecosystem services of coastal...
During the past two decades, Chinese clothing industry has made remarkable progress in production and export. China has become the world's largest clothing producer and exporter. However, it still falls behind traditionally strong competitors like Italia in term of quality and unit price. Based on industry research on international competitiveness, this paper first constructs an evaluation index system...
Due to the importance in organization management and cost research, how to allocate a fixed cost across a set of competing units in an equitable manner draw more and more attention. Cook and Zhu proposed an approach with data envelopment analysis (DEA) efficiency invariance principle to solve such allocation problems, but we will present their model does not consider the effect caused by the allocated...
The problem of efficiency has become the research focus for economist today. The enterprise's input and output could reflect the production efficiency in a certain period. So the input-output analysis is often used to evaluate the problem of efficiency. As the real estate industry has a longer chain and wide relevance of industries, it has a direct impact on development speed and quality of the national...
Customized training model of higher education must be vigorously promoted. A customized training model evaluation system of higher vocational education should be built to help us improve the training model. Therefore, this paper first analyzes the strategic continuum of the customized training model of higher vocational education, and then builds the evaluation index, finally, adopts ANP approach...
Through the analysis of support vector machines principle, the theory of convex hull based on support vector machines is used for the fault diagnosis, with acme-set of convex hull replacing the entire sample set to train, then, use actual data to do the simulation. The simulation results show that this method has the same performance as learning by the entire sample set, but reduces the storage space...
The principles and technologies of computer supported cooperative work (CSCW) are increasingly integrated in many areas to support distributed collaborative production, especially with the rapid growth of the Internet and broadband network technologies. This paper summarizes the results of research and development towards Internet-based support of collaborative GIS data production, and discusses key...
In recent years, with the significantly increasing impact of online reviews (a form of word-of-mouth) on consumer purchase decision, clarifying how this kind of information source influences consumer behaviors(usually represented by sales) have been exposed to more attentions in business and academic research fields. Differing from most existing studies which statically analyze relations between online...
The paper considers a three-tier credit chain consisting of a bank, a logistic company and a retailer. The paper analysis the following outsourcing structure implemented by top-tier bank: inhouse consignment, under which the bank signs independent contracts with the logistic company and the retailer. Under the assumption that the logistic company cannot change its decision, the paper investigates...
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