In order to solve the disadvantages caused by mechanical slide rheostat that has big errors and low precision,a novel voltage regulation method for high voltage DC power supply was introduced.The key of this method we...In order to solve the disadvantages caused by mechanical slide rheostat that has big errors and low precision,a novel voltage regulation method for high voltage DC power supply was introduced.The key of this method were digital potentiometer MAXIM 5455 and linear photoelectric coupling LOC110,and application programs were compiled using Visual Basic which was graphical compiling language,furthermore the communication between exterior and computer was carried out by ICP7044D module,in consequence the output value of high voltage DC power supply could be regulated with computer.The measured results showed that this method could accurately,conveniently and rapidly regulate the output value of high voltage DC power supply.展开更多
Quasi-Newton methods are the most widely used methods to find local maxima and minima of functions in various engineering practices. However, they involve a large amount of matrix and vector operations, which are comp...Quasi-Newton methods are the most widely used methods to find local maxima and minima of functions in various engineering practices. However, they involve a large amount of matrix and vector operations, which are computationally intensive and require a long processing time. Recently, with the increasing density and arithmetic cores, field programmable gate array(FPGA) has become an attractive alternative to the acceleration of scientific computation. This paper aims to accelerate Davidon-Fletcher-Powell quasi-Newton(DFP-QN) method by proposing a customized and pipelined hardware implementation on FPGAs. Experimental results demonstrate that compared with a software implementation, a speed-up of up to 17 times can be achieved by the proposed hardware implementation.展开更多
In 2014, the European Commission carries out a new programme----"Erasmus+ Programme". It increases people's skills and employability through provides grants to support students, trainees, staff and volun...In 2014, the European Commission carries out a new programme----"Erasmus+ Programme". It increases people's skills and employability through provides grants to support students, trainees, staff and volunteers to study or work abroad and organizations to organize activities. In order to let more Chinese people know about"Erasmus+ Programme"and participate in it, the author of the paper just selects its introductory part Erasmus+ Programme Guide to translate. While translating, the author of the paper finds that certain translation theory and correspondent translation methods must be adopted to guide the translation in order to produce a correct and expressive version. The paper is hence intended to study the translation theory and translation methods adopted in the translation of Erasmus+ Programme Guide.展开更多
基金Project Supported by National Natural Science Foundation of China（50637020）.
文摘In order to solve the disadvantages caused by mechanical slide rheostat that has big errors and low precision,a novel voltage regulation method for high voltage DC power supply was introduced.The key of this method were digital potentiometer MAXIM 5455 and linear photoelectric coupling LOC110,and application programs were compiled using Visual Basic which was graphical compiling language,furthermore the communication between exterior and computer was carried out by ICP7044D module,in consequence the output value of high voltage DC power supply could be regulated with computer.The measured results showed that this method could accurately,conveniently and rapidly regulate the output value of high voltage DC power supply.
基金Supported by the National Natural Science Foundation of China(No.61574099)
文摘Quasi-Newton methods are the most widely used methods to find local maxima and minima of functions in various engineering practices. However, they involve a large amount of matrix and vector operations, which are computationally intensive and require a long processing time. Recently, with the increasing density and arithmetic cores, field programmable gate array(FPGA) has become an attractive alternative to the acceleration of scientific computation. This paper aims to accelerate Davidon-Fletcher-Powell quasi-Newton(DFP-QN) method by proposing a customized and pipelined hardware implementation on FPGAs. Experimental results demonstrate that compared with a software implementation, a speed-up of up to 17 times can be achieved by the proposed hardware implementation.
文摘In 2014, the European Commission carries out a new programme----"Erasmus+ Programme". It increases people's skills and employability through provides grants to support students, trainees, staff and volunteers to study or work abroad and organizations to organize activities. In order to let more Chinese people know about"Erasmus+ Programme"and participate in it, the author of the paper just selects its introductory part Erasmus+ Programme Guide to translate. While translating, the author of the paper finds that certain translation theory and correspondent translation methods must be adopted to guide the translation in order to produce a correct and expressive version. The paper is hence intended to study the translation theory and translation methods adopted in the translation of Erasmus+ Programme Guide.
