نتایج جستجو برای: pool
تعداد نتایج: 46896 فیلتر نتایج به سال:
We revisit the well-known object-pool design pattern in Java. In the last decade, the pattern has attracted a lot of criticism regarding its validity when used for light-weight objects that are only meant to hold memory rather than any other resources (database connections, sockets etc.) and in fact, common opinion holds that is an “anti-pattern” in such cases. Nevertheless, we show through sev...
Background & Aims: Human beings are constantly exposed to different radiations that have always been recognized as a health hazard. Radon -222 and its daughter products are major sources of natural radiations and a significant total inhalation dose is related to them. Hence, the measurement of radon activity in the environment has gained an increasing importance. In this study, with the measure...
Background: Previous studies show that swimming in pools which are not well managed, can transmit infections. So there is still concern that swimmers by contacting with water and swimming pool environment could be affected by fungal diseases. So this study aimed to determine the amount of fungal contamination in indoor pools of Yazd in 2011. Method: In this study, all the indoor swimming po...
the rapid melting of a semi- infinite body due to the absorption of a cw laser beam radiation has been studied. the enthalpy technique for the solution of phase change problems has been used in an explicit finite difference form to calculate the transient temperature distribution in the semi-infinite body and the growth rate of the melt pool. the technique has been modified so that it is not ne...
in-vitro labeling of rbc with 99mtc is an intricate procedure and there is always a need foran alternate blood pool imaging agent. the aim of this study was to prepare an effective nanosized liposome (nls) similar to human rbc for blood pool scintigraphy. this study formulatespeg-nls and non-peg-nls using film method plus high pressure homogenization technique.biodistribution studies were perfo...
this paper gives an account of the implementation of geomorphological, hydrogeological, hydrochemical and isotopic techniques to understand groundwater-surface water interactions in a multiple use area, los padres-la brava corridor (se of buenos aires province, argentina). the isophreatic map reveals a regional flow from the sw to ne sector, and allowed us to define the effluent-influent behav...
deregulation policy has caused some changes in the concepts of power systems reliability assessment and enhancement. in this paper, generation reliability is considered, and a method for its assessment using intelligent systems is proposed. also, because of power market and generators’ forced outages stochastic behavior, monte carlo simulation is used for reliability evaluation. generation r...
nucleate pool boiling heat transfer coefficient have been experimentally measured on a horizontal rod heater for various liquid binary mixtures. measurements are based on more than three hundred data points on a wide range of concentrations and heat fluxes. in this investigation, it has been confirmed that the heat transfer coefficient in boiling solutions are regularly less than those in pure ...
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