نتایج جستجو برای: Measurement site design
تعداد نتایج: 1682986 فیلتر نتایج به سال:
all analytical methods are generally based on the measurement of a parameter or parameters which are somehow related to the concentration of the species.an ideal analytical method is one in which the concentration of a species can be measured to a high degree precision and accuracy and with a high sensitivity. unfortunately finding such a method is very difficult or sometimes even impossible.in...
The accuracy of leak detection and calibration of pipe networks by means of the inverse transient analysis (ITA) is highly affected by the number and location of the measurement sites. This study introduces a conceptual decision-making model, the Decision Table Method (DTM), for the measurement site design of pipe networks with the aim of inverse transient analysis. Through the Decision Table M...
the main objective in sampling is to select a sample from a population in order to estimate some unknown population parameter, usually a total or a mean of some interesting variable. a simple way to take a sample of size n is to let all the possible samples have the same probability of being selected. this is called simple random sampling and then all units have the same probability of being ch...
this research was conducted in two protect and destroy region in the middle zagros, in illam province. in order to identification of ecological species group and evaluate density of regeneration, effect of many factors such as protection, vegetation, physiographic factors, physical and chemical properties of soil in study locations were studied. to achieve these purpose number of 54 plots using...
by application of design spectra in seismic analyses, determination of design spectra for different site conditions, magnitudes, safety levels and damping ratios will improve the accuracy of seismic analysis results. the result of this research provides different design acceleration spectra based on iran earthquakes database for different conditions. for this purpose first a set of 146 records ...
با توجه به حیاتی بودن نقش آنزیم topo ii در چرخه سلولی، این آنزیم میتواند هدف درمانی مهمی در شیمی درمانی سرطان باشد. فلوروکینولون ها به عنوان مهارکننده های آنزیم توپوایزومراز (ژیراز) باکتری به خوبی شناخته شده اند و اخیرا نیز نشان داده شده است که توان مهار توپوایزومراز ii یوکاریوتیکها را هم دارند. در این راستا در این پایان نامه ترکیبات جدیدی از فلوروکینولونها به منظور مهار آنزیم توپوایزومراز انسا...
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