pinch technology is one of the best methods for designing a multi stream heat exchanger(mshe) through a network; current pinch-based methods, however, lead to a larger and more complicateddesign problems. the major drawback of the current methods is they result in designs having more individual mshe sections than essential, correspond to the enthalpy intervals on temperature vs. enthalpy diagra...

pinch technology is one of the best methods for designing a multi stream heat exchanger(mshe) through a network; current pinch-based methods, however, lead to a larger and more complicateddesign problems. the major drawback of the current methods is they result in designs having more individual mshe sections than essential, correspond to the enthalpy intervals on temperature vs. enthalpy diagra...

This paper used the Data Envelopment Analysis (DEA) to measure the technical efficiency of fishing vessels in Haizhou Bay, and then used the Tobit regression to define its influencing factors. This study shows that the overall fishing capacity utilization of fishing vessels at present is very low which indicates that there is a serious waste of resources problem in Haizhou Bay. Specifically, th...

A cold room assisted vapor-compression refrigeration cycle is dynamically modeled in a year and optimized. Total annual cost (TACO) and coefficient of performance (COP) are selected as two objective functions. Both cold room and refrigeration cycle parameters are considered as design variables. Moreover, three working fluids included R22, R134a and R407c are examined. The optimum Pareto front r...

conclusions chronic hepatitis c-related liver diseases impose a substantial economic burden on patients, families and the society. the current study provides useful information on cost of treatment and work loss for different disease states, which can be further used in cost-effectiveness evaluations. results the total annual cost per patient for chronic hepatitis c, cirrhosis and hepatocellula...

BACKGROUND Current Canadian guidelines recommend annual screening for hyperlipidemia in people with a Framingham risk score (FRS) of greater than 5%. In those with a FRS of less than 5%, lipid screening is recommended every 3 to 5 years. OBJECTIVES We aimed to determine the most cost-effective frequency of lipid profile testing in adults with different levels of cardiovascular risk based on p...

background to estimate the total annual cost due to chronic hepatitis b (chb)-related diseases imposed on each patient and his/her family in iran.   methods economic burden of chb-related diseases (chb, cirrhosis, and hepatocellular carcinoma) were examined. in this retrospective study, 100 iranian patients were identified to obtain their socioeconomic status, utilization (direct and indirect c...

Based on two integration steps, an optimization framework is proposed in this work for the synthesis and design of complex distillation sequence. The first step is to employ heat integration in sequence and reduce the heat consumption and total annual cost of the process. The second one is to increase the exergetic efficiency of sequence by generating power in implemented expanders in sequence....