نتایج جستجو برای: 120 and 150c
تعداد نتایج: 16838789 فیلتر نتایج به سال:
Cyclic activated sludge technology was selected for the Potsdam Wastewater Treatment Plant (90,000 p.e.). The cyclic activated sludge facility comprises four modules integrated into two circular basins. Construction was commenced in February 1998 with seeding of the plant for start up taking place in October 1998. Process performance has been met since Spring 1999 at 80-90 percent of design loa...
abstract this study is an attempt to determine the effect of nano- technology education on science lesson for fifth grade in primary school in the city of kermanshah. this research is experimental and is conducted in the from of pre-test and post- test for the control group. an achievement test was administered to determine the rate of learning in the students. the research is an applied one. ...
Species of tapeworms belonging to the family Taenidae are among the most important helminth parasites of man and domestic animals. Taeniasis and cysticercosis are serious problems of public health and economy in developing countries. The ultimate control of these diseases depends on the development of effective prophylactic vaccines. Although vaccines against bacterial and viral infections are ...
A novel fiber-optic electrochemiluninescence sensor has been developed. It can be conveniently applied by placing into the sample solution in a manner similar to a conventional ion selective electrode, without requiring liquid luminous reagent and a flowing system. The sensor is consisted of an independent probe and a case for exclusion the ambient light, allowing the sample solution to pass th...
To show the impact of sensor behaviour on the control result, four strategies for aeration control are tested using different sensor characteristics. It is demonstrated, on the one hand, how an increasing response time will limit the achievable control quality and, on the other hand, how a given sensor characteristic can be taken into account for the controller design. The presented tests show ...
In this new series of Fungal Biodiversity Profiles, the authors provide descriptions for ten taxa: Ilytheomyces uncinatus W. Rossi & M. Leonardi, sp. nov. (Ascomycota, Laboulbeniales) and several Basidiomycota: in family Entolomataceae Entoloma aurantioalpinum Armada, Vila, Bellanger, Noordel., Krisai Dima, E. nigroflavescens Noordel. nov., both from France; Inocybaceae Inocybe hebes Eyssart. B...
zayanderoud basin is one of the important agricultural areas in country level because of climatic variety and resuscitative water of zayanderoud river. since frost phenomenon especially late spring frost incurs great damages on fruit trees and agricultural products of this region, it is necfessary to study frost in this basin.in this research, the intensity of frost during cold period and sprin...
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