نتایج جستجو برای: receiving money for water piping
تعداد نتایج: 10613363 فیلتر نتایج به سال:
run-out-table (rot) is located between last finishing stand and down coiler in a hot strip mill. as the hot steel strip passes from rot, water jets impact on it from top and bottom and strip temperature decreases approximately from 800-950 °c to 500-750°c. the temperature history that strip experience while passing through rot affects significantly the metallurgical and mechanical properties, s...
The possible effects of pipe materials on drinking water quality have been analyzed in the distribution system of the water treatment plant of “La Concepción” in Tegucigalpa, Honduras. “La Concepción” is a surface water reservoir experiencing biogeochemical cycling of manganese. Black water problems have been reported in the distribution system since 1998. An evaluation of the potential influen...
prevent introductions from region to region. Meanwhile, the international community has failed to prevent a stream of species from flowing around the world, with the exception of a 1951 agreement to prevent introductions of plant pests. President Clinton's executive order creates a federal interagency Invasive Species Council whose members include the secretaries of state, treasury, defense, th...
This paper is an extension of previous work which characterises soil behaviours using the grading entropy diagram. The present work looks at the piping process in granular soils, by considering some new data from flood-protection dikes. The piping process is divided into three parts here: particle movement at the micro scale to segregate free water; sand boil development (which is the initiatio...
The severe vibration of a screw compressor outlet piping system caused the fatigue failure of some thermowells and the unscheduled shut down of the system. The main reasons of the abnormal vibration in the outlet piping system were investigated by developing an acoustic model to simulate the gas pulsation and establishing two finite element models to conduct the mechanical vibration analyses. T...
Biofilms can be formed on both biotic and abiotic surfaces, including living tissues, indwelling medical devices, industrial or portable water system piping, natural aquatic systems [...]
Background: Water distribution networks (WDNs) are facilities that require massive investment and their optimization is very important. This study aimed to optimization and development of models for promoting WDNs with using engineering judgment. In this method, instead of controlling all system states, it is possible to search the optimal set of options based on engineering judgment and hydra...
In this paper, we present a methodology for the retrofit of water utilization systems using mathematical optimization. The problem consists of determining the best re-piping and the capacity of a new treatment unit (if any) to be introduced to generate the best retrofit. Instead of reducing water consumption, or maximizing savings, we resort to analyze the problem using a more comprehensive vie...
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