Water flooding is a commonly used technique to improve oil recovery, although the amount of left in reservoirs after procedure still significant. Gas displacement water an effective way recover residual oil, but occurrence state and flow principles multiphase fluid gas injection are ambiguous. Therefore, process should be studied on pore scale provide basis for formulating reasonable program. M...

This paper presents a new method for encryption of color images based on a combination of chaotic systems, which makes the image encryption more efficient and robust. The proposed algorithm generated three series of data, ranged between 0 and 255, using a chaotic Chen system. Another Chen system was then started with different initial values, which were converted to three series of numbers from...

The Chen-Stein method of Poisson approximation is a powerful tool for computing an error bound when approximating probabilities using the Poisson distribution. In many cases, this bound may be given in terms of first and second moments alone. We present a background of the method and state some fundamental Poisson approximation theorems. The body of this paper is an illustration, through varied...

Background: End-stage renal disease (ESRD) patients have poor health-related quality of life (HRQOL) comparing to general population and comparable HRQOL to patients with other major chronic diseases. Poor HRQOL is associated with shorter survival. There is a limited threshold to which dialysis dose and parameters management can improve HRQOL in ESRD patients. Numerous studies have sought to fi...

Background: End-stage renal disease (ESRD) patients have poor health-related quality of life (HRQOL) comparing to general population and comparable HRQOL to patients with other major chronic diseases. Poor HRQOL is associated with shorter survival. There is a limited threshold to which dialysis dose and parameters management can improve HRQOL in ESRD patients. Numerous studies have sought to fi...

Background: End-stage renal disease (ESRD) patients have poor health-related quality of life (HRQOL) comparing to general population and comparable HRQOL to patients with other major chronic diseases. Poor HRQOL is associated with shorter survival. There is a limited threshold to which dialysis dose and parameters management can improve HRQOL in ESRD patients. Numerous studies have sought to fi...

1. Department of Chemistry, National Changhua University of Education, No. 1, Jin-De Road, Changhua 500, Taiwan. 2. School of Medicine, Chung Shan Medical University, No.110, Sec.1, Jianguo N.Rd.,Taichung City 402,Taiwan. 3. Division of Colorectal surgery Department of Surgery Chung Shan Medical University Hospital, No.110, Sec.1, Jianguo N. Rd.,Taichung City 402,Taiwan. 4. Department of Pathol...