The calculated and experimental research of sheet resistances of crystalline silicon solar cells by dry laser doping is investigated. The nonlinear numerical model on laser melting of crystalline silicon and liquid-ph...The calculated and experimental research of sheet resistances of crystalline silicon solar cells by dry laser doping is investigated. The nonlinear numerical model on laser melting of crystalline silicon and liquid-phase diffusion of phosphorus atoms by dry laser doping is analyzed by the finite difference method implemented in MATLAB. The melting period and melting depth of crystalline silicon as a function of laser energy density is achieved. The effective liquid-phase diffusion of phosphorus atoms in melting silicon by dry laser doping is confirmed by the rapid decrease of sheet resistances in experimental measurement. The plateau of sheet resistances is reached at around 15 Ω/. The calculated sheet resistances as a function of laser energy density is obtained and the calculated results are in good agreement with the corresponding experimental measurement. Due to the successful verification by comparison between experimental measurement and calculated results, the simulation results could be used to optimize the virtual laser doping parameters.展开更多
In a world of increasing resistance to current antibiotics,search of novel therapeutic options is urgently needed.The aim of this work was to screen plant crude extracts for direct or indirect(inhibition of resistance...In a world of increasing resistance to current antibiotics,search of novel therapeutic options is urgently needed.The aim of this work was to screen plant crude extracts for direct or indirect(inhibition of resistance)antimicrobial activity.Four crude extracts from 12 plants traditionally used in Benin for the treatment of infections were展开更多
Studying on resistance specificity of human acupoints is one of the major subjects in the research on acupoint specificity. Even since a long time ago, many methods have been put forward in the detection of acupoint r...Studying on resistance specificity of human acupoints is one of the major subjects in the research on acupoint specificity. Even since a long time ago, many methods have been put forward in the detection of acupoint resistance specificity. From the vertical lengthways of the acupoint structure, the methods and means are put forward to detect the acupoint resistance in a series of studies. In the studies, some peculiar phenomena are found out in the detection of the acupoint resistance, and some phenomena are interrelated with the volume conductor characteristics of the human body, and some phenomena might be interrelated with the detecting methods and means. By the summary and analysis of those peculiar phenomena, references are offered to the relevant researchers engaged in the detection of the acupoint resistance.展开更多
基金Supported by the National Natural Science Foundation of China under Grant No 61306076
文摘The calculated and experimental research of sheet resistances of crystalline silicon solar cells by dry laser doping is investigated. The nonlinear numerical model on laser melting of crystalline silicon and liquid-phase diffusion of phosphorus atoms by dry laser doping is analyzed by the finite difference method implemented in MATLAB. The melting period and melting depth of crystalline silicon as a function of laser energy density is achieved. The effective liquid-phase diffusion of phosphorus atoms in melting silicon by dry laser doping is confirmed by the rapid decrease of sheet resistances in experimental measurement. The plateau of sheet resistances is reached at around 15 Ω/. The calculated sheet resistances as a function of laser energy density is obtained and the calculated results are in good agreement with the corresponding experimental measurement. Due to the successful verification by comparison between experimental measurement and calculated results, the simulation results could be used to optimize the virtual laser doping parameters.
文摘In a world of increasing resistance to current antibiotics,search of novel therapeutic options is urgently needed.The aim of this work was to screen plant crude extracts for direct or indirect(inhibition of resistance)antimicrobial activity.Four crude extracts from 12 plants traditionally used in Benin for the treatment of infections were
基金supported by the Key Project of Scientific and Technological Research, Ministry of Education of the People’s Republic of China (210076)Innovation Project of Shanghai Municipal Educational Commission (Key Project, 10ZZ76)Leading Academic Project of State Administration of Traditional Chinese Medicine (Engineering Subject of Chinese Medicine and Pharmacy)
文摘Studying on resistance specificity of human acupoints is one of the major subjects in the research on acupoint specificity. Even since a long time ago, many methods have been put forward in the detection of acupoint resistance specificity. From the vertical lengthways of the acupoint structure, the methods and means are put forward to detect the acupoint resistance in a series of studies. In the studies, some peculiar phenomena are found out in the detection of the acupoint resistance, and some phenomena are interrelated with the volume conductor characteristics of the human body, and some phenomena might be interrelated with the detecting methods and means. By the summary and analysis of those peculiar phenomena, references are offered to the relevant researchers engaged in the detection of the acupoint resistance.
