Enterprises are in competition with other enterprises operating in their fields. In today＇s world, enterprises need to increase their efficiency and productivity, the values of which, if below market conditions, they...Enterprises are in competition with other enterprises operating in their fields. In today＇s world, enterprises need to increase their efficiency and productivity, the values of which, if below market conditions, they need to raise. Data Envelopment Analysis, widely utilized in efficiency and productivity measurements is a method that measures the efficiency of one unit relatively, taking more than one input determines the efficiency of units with similar inputs and outputs and output simultaneously. DEA interactively Thus, not only the efficient units are determined, but an opinion is offered as to how the inefficient units can be improved. In this study, 12 enterprises that were among the first 500 enterprises in Turkey in 2008, active in Istanbul Stock Exchange and operating in food sector through Data Envelopment Analysis. In the model, activity rates were used as input values, rantability rates were used as output values. In conclusion of simultaneous analysis of input and output values, efficient and inefficient enterprises were determined.展开更多
The Organisation for Economic Cooperation and Development （OECD） defines corporate governance as, ＂the way in which boards oversee the running of a company by its managers, and how board members are in turn account...The Organisation for Economic Cooperation and Development （OECD） defines corporate governance as, ＂the way in which boards oversee the running of a company by its managers, and how board members are in turn accountable to shareholders and the company.＂ In recent years the issue of corporate governance and committees related to it and their impacts on corporate performance have continued to gain widespread prominence in the capital market economy. Corporate Governance Rating is meant to indicate the relative level to which an organisation accepts and follows the codes and guidelines of corporate governance practices. The purpose of the paper is to examine the rating reports of 27 companies which have obtained the corporate governance rating by rating agencies. The study highlights that the ＂stakeholders＂ sections of the reports are the most powerful part of the reports whereas the ＂board of directors＂ sections are the weakest. Potential areas for improvements are also identified.展开更多
Summary： Thirty-three cases of nerve tinnitus were treated mainly by needling acupoints Baihui（GV 20）, Tinggong（SI 19）, Tinghui（GB 2）, Yifeng（TE 17） and Zhongzhu（TE 3）. In the presence of kidney deficiency,...Summary： Thirty-three cases of nerve tinnitus were treated mainly by needling acupoints Baihui（GV 20）, Tinggong（SI 19）, Tinghui（GB 2）, Yifeng（TE 17） and Zhongzhu（TE 3）. In the presence of kidney deficiency, Shenshu（BL 23） and Mingmen（GV 4） were added; in the presence of liver-gallbladder fire preponderance, Taichong（LR 3） and Qiuxu（GB 40） were added; in the presence of exogenous wind heat, Waiguan（TE 5） and Hegu（LI 4） were added. After 6-course treatments, 6 cases were cured, 22 cases improved and 2 cases failed, with the total effective rate of 93.9%.展开更多
Acne is a common disorder in adolescence. However, more and more patients are over 25 years old. This type of acne is recurrent, so it is called post-adolescence acne. The author treated 56 cases of women with post-ad...Acne is a common disorder in adolescence. However, more and more patients are over 25 years old. This type of acne is recurrent, so it is called post-adolescence acne. The author treated 56 cases of women with post-adolescence ache by auricular point sticking method, and obtained excellent results. It is reported as follows.展开更多
We introduce here a work package for a National Natural Science Foundation of China Major Project. We propose to develop computational methodology starting from the theory of electronic excitation processes to predict...We introduce here a work package for a National Natural Science Foundation of China Major Project. We propose to develop computational methodology starting from the theory of electronic excitation processes to predicting the opto-electronic property for organic materials, in close collaborations with experiments. Through developing methods for the electron dynamics, considering superexchange electronic couplings, spin-orbit coupling elements between excited states, electron-phonon relaxation, intermolecular Coulomb and exchange terms we combine the statistical physics approaches including dynamic Monte Carlo, Boltzmann transport equation and Boltzmann statistics to predict the macroscopic properties of opto-electronic materials such as light-emitting efficiency, charge mobility, and exciton diffusion length. Experimental synthesis and characterization of D-A type ambipolar transport material as well as novel carbon based material will provide a test ground for the verification of theory.展开更多
This paper investigates the convergence proof of the Direct Simulation Monte Carlo(DSMC) method and the Gas-Kinetic Unified Algorithm in simulating the Boltzmann equation.It can be shown that the particle velocity dis...This paper investigates the convergence proof of the Direct Simulation Monte Carlo(DSMC) method and the Gas-Kinetic Unified Algorithm in simulating the Boltzmann equation.It can be shown that the particle velocity distribution function obtained by the DSMC method converges to a modified form of the Boltzmann equation,which is the equation of the gas-kinetic unified algorithm to directly solve the molecular velocity distribution function.Their convergence is derived through mathematical treatment.The collision frequency is presented using various molecular models and the local equilibrium distribution function is obtained by Enskog expansion using the converged equation of the DSMC method.These two expressions agree with those used in the unified algorithm.Numerical validation of the converging consistency between these two approaches is illustrated by simulating the pressure driven Poiseuille flow in the slip transition flow regime and the two-dimensional and three-dimensional flows around a circular cylinder and spherical-cone reentry body covering the whole flow regimes from low speed micro-channel flow to high speed non-equilibrium aerothermodynamics.展开更多
文摘Enterprises are in competition with other enterprises operating in their fields. In today＇s world, enterprises need to increase their efficiency and productivity, the values of which, if below market conditions, they need to raise. Data Envelopment Analysis, widely utilized in efficiency and productivity measurements is a method that measures the efficiency of one unit relatively, taking more than one input determines the efficiency of units with similar inputs and outputs and output simultaneously. DEA interactively Thus, not only the efficient units are determined, but an opinion is offered as to how the inefficient units can be improved. In this study, 12 enterprises that were among the first 500 enterprises in Turkey in 2008, active in Istanbul Stock Exchange and operating in food sector through Data Envelopment Analysis. In the model, activity rates were used as input values, rantability rates were used as output values. In conclusion of simultaneous analysis of input and output values, efficient and inefficient enterprises were determined.
文摘The Organisation for Economic Cooperation and Development （OECD） defines corporate governance as, ＂the way in which boards oversee the running of a company by its managers, and how board members are in turn accountable to shareholders and the company.＂ In recent years the issue of corporate governance and committees related to it and their impacts on corporate performance have continued to gain widespread prominence in the capital market economy. Corporate Governance Rating is meant to indicate the relative level to which an organisation accepts and follows the codes and guidelines of corporate governance practices. The purpose of the paper is to examine the rating reports of 27 companies which have obtained the corporate governance rating by rating agencies. The study highlights that the ＂stakeholders＂ sections of the reports are the most powerful part of the reports whereas the ＂board of directors＂ sections are the weakest. Potential areas for improvements are also identified.
文摘Summary： Thirty-three cases of nerve tinnitus were treated mainly by needling acupoints Baihui（GV 20）, Tinggong（SI 19）, Tinghui（GB 2）, Yifeng（TE 17） and Zhongzhu（TE 3）. In the presence of kidney deficiency, Shenshu（BL 23） and Mingmen（GV 4） were added; in the presence of liver-gallbladder fire preponderance, Taichong（LR 3） and Qiuxu（GB 40） were added; in the presence of exogenous wind heat, Waiguan（TE 5） and Hegu（LI 4） were added. After 6-course treatments, 6 cases were cured, 22 cases improved and 2 cases failed, with the total effective rate of 93.9%.
文摘Acne is a common disorder in adolescence. However, more and more patients are over 25 years old. This type of acne is recurrent, so it is called post-adolescence acne. The author treated 56 cases of women with post-adolescence ache by auricular point sticking method, and obtained excellent results. It is reported as follows.
基金the National Natural Science Foundation of China (21290191)
文摘We introduce here a work package for a National Natural Science Foundation of China Major Project. We propose to develop computational methodology starting from the theory of electronic excitation processes to predicting the opto-electronic property for organic materials, in close collaborations with experiments. Through developing methods for the electron dynamics, considering superexchange electronic couplings, spin-orbit coupling elements between excited states, electron-phonon relaxation, intermolecular Coulomb and exchange terms we combine the statistical physics approaches including dynamic Monte Carlo, Boltzmann transport equation and Boltzmann statistics to predict the macroscopic properties of opto-electronic materials such as light-emitting efficiency, charge mobility, and exciton diffusion length. Experimental synthesis and characterization of D-A type ambipolar transport material as well as novel carbon based material will provide a test ground for the verification of theory.
基金supported by the National Natural Science Foundation of China (Grant Nos. 91016027 and 91130018)
文摘This paper investigates the convergence proof of the Direct Simulation Monte Carlo(DSMC) method and the Gas-Kinetic Unified Algorithm in simulating the Boltzmann equation.It can be shown that the particle velocity distribution function obtained by the DSMC method converges to a modified form of the Boltzmann equation,which is the equation of the gas-kinetic unified algorithm to directly solve the molecular velocity distribution function.Their convergence is derived through mathematical treatment.The collision frequency is presented using various molecular models and the local equilibrium distribution function is obtained by Enskog expansion using the converged equation of the DSMC method.These two expressions agree with those used in the unified algorithm.Numerical validation of the converging consistency between these two approaches is illustrated by simulating the pressure driven Poiseuille flow in the slip transition flow regime and the two-dimensional and three-dimensional flows around a circular cylinder and spherical-cone reentry body covering the whole flow regimes from low speed micro-channel flow to high speed non-equilibrium aerothermodynamics.
