Power Quest公司提供的PartitionMagic建立硬盘分区软件,简称为Pqmagic,其特点是在不破坏硬盘里原有的程序和数据的情况下,可以安全地增加分区数建立新分区、改变分区的大小和移动分区的位置,为在大容量硬盘上安装多个操作系统提供了特...Power Quest公司提供的PartitionMagic建立硬盘分区软件,简称为Pqmagic,其特点是在不破坏硬盘里原有的程序和数据的情况下,可以安全地增加分区数建立新分区、改变分区的大小和移动分区的位置,为在大容量硬盘上安装多个操作系统提供了特别方便的工具软件。使用本软件一个硬盘最多可分为4个分区,即同一个硬盘最多可安装4个操作系统。关于Pqmagic软件的使用方法可参阅本刊1998年第3期《安全自由地改变硬盘分区》一文。展开更多
The financial crisis undoubtedly exerted a pressure on the companies operating in Poland. Thus, it is important to undertake researches that reveal the paths and strength of the transmission of financial crisis with r...The financial crisis undoubtedly exerted a pressure on the companies operating in Poland. Thus, it is important to undertake researches that reveal the paths and strength of the transmission of financial crisis with regard to the business entities. This paper presents partial results of the researches dedicated to the analysis of the impact of financial crisis on the financial situation of companies operating in Silesian Region in Poland. It analyses and discusses the general changes in the financial ratios that inform about the company＇s financial liquidity and the level of liquidity risk. As a research paper, it aims at justifying hypotheses about the changes of liquidity and liquidity risk in companies operating in Poland, Silesian Region within the period of 2006-2009. The tested hypotheses generally indicate the decrease of liquidity in the aftermath of crisis and a worse situation in the Silesian Region, as compared to the national level. The study is based on an application of a part of authors＇ self-developed method--the CFS Watch （Corporate Financial Situation Watch）, which consists of five analytical modules. In this study, one module is applied： the FLA Module （Financial Liquidity Analysis） with regard to financial liquidity and the level of liquidity risk. The research is based on the data collected by the Polish Central Statistical Office. The analysis of FLA Module is based on two samples of companies： companies operating in the Silesian Region （denoted as the MEPP sample）, and companies operating in Poland （denoted as the MAPP sample）. This allows developing a comparative analysis between regional and national dimension. The results of the study represent an interesting starting point for further comparative researches based on the analysis of the changes in the level of liquidity and liquidity risk of companies operating in different countries. It may form a base for finding similarities or differences in their financial situation in the aftermath of the financial crisis. The CFS Watch method in terms of the liquidity can be widely applied to make the results comparable.展开更多
In this paper a finite element model is developed to study cytosolic calcium concen- tration distribution in astrocytes for a two-dimensional steady-state case in presence of excess buffer. The mathematical model of c...In this paper a finite element model is developed to study cytosolic calcium concen- tration distribution in astrocytes for a two-dimensional steady-state case in presence of excess buffer. The mathematical model of calcium diffusion in astrocytes leads to a boundary value problem involving elliptical partial differential equation. The model con- sists of reaction-diffusion phenomena, association and dissociation rates and buffer. A point source of calcium is incorporated in the model. Appropriate boundary conditions have been framed. Finite element method is employed to solve the problem. A MATLAB program has been developed for the entire problem and simulated to compute the numer- ical results. The numerical results have been used to plot calcium concentration profiles in astrocytes. The effect of ECTA, BAPTA and aCa influx on calcium concentration distribution in astrocytes is studied with the help of numerical results.展开更多
基金Supported by National Natural Science Foundation of China （60504024）, Zhejiang Provincial Natural Science Foundation of China （Y106010）, and the Specialized Research Fund for the Doctoral Program of Higher Education of China （20060335022）
文摘The financial crisis undoubtedly exerted a pressure on the companies operating in Poland. Thus, it is important to undertake researches that reveal the paths and strength of the transmission of financial crisis with regard to the business entities. This paper presents partial results of the researches dedicated to the analysis of the impact of financial crisis on the financial situation of companies operating in Silesian Region in Poland. It analyses and discusses the general changes in the financial ratios that inform about the company＇s financial liquidity and the level of liquidity risk. As a research paper, it aims at justifying hypotheses about the changes of liquidity and liquidity risk in companies operating in Poland, Silesian Region within the period of 2006-2009. The tested hypotheses generally indicate the decrease of liquidity in the aftermath of crisis and a worse situation in the Silesian Region, as compared to the national level. The study is based on an application of a part of authors＇ self-developed method--the CFS Watch （Corporate Financial Situation Watch）, which consists of five analytical modules. In this study, one module is applied： the FLA Module （Financial Liquidity Analysis） with regard to financial liquidity and the level of liquidity risk. The research is based on the data collected by the Polish Central Statistical Office. The analysis of FLA Module is based on two samples of companies： companies operating in the Silesian Region （denoted as the MEPP sample）, and companies operating in Poland （denoted as the MAPP sample）. This allows developing a comparative analysis between regional and national dimension. The results of the study represent an interesting starting point for further comparative researches based on the analysis of the changes in the level of liquidity and liquidity risk of companies operating in different countries. It may form a base for finding similarities or differences in their financial situation in the aftermath of the financial crisis. The CFS Watch method in terms of the liquidity can be widely applied to make the results comparable.
文摘In this paper a finite element model is developed to study cytosolic calcium concen- tration distribution in astrocytes for a two-dimensional steady-state case in presence of excess buffer. The mathematical model of calcium diffusion in astrocytes leads to a boundary value problem involving elliptical partial differential equation. The model con- sists of reaction-diffusion phenomena, association and dissociation rates and buffer. A point source of calcium is incorporated in the model. Appropriate boundary conditions have been framed. Finite element method is employed to solve the problem. A MATLAB program has been developed for the entire problem and simulated to compute the numer- ical results. The numerical results have been used to plot calcium concentration profiles in astrocytes. The effect of ECTA, BAPTA and aCa influx on calcium concentration distribution in astrocytes is studied with the help of numerical results.
