نتایج جستجو برای: multi element determination
تعداد نتایج: 898965 فیلتر نتایج به سال:
Accurate determination of the pull-in, or the collapse voltage is critical in the design process. In this paper an analytical method is presented that provides a more accurate determination of the pull-in voltage for MEMS capacitive devices with clamped square diaphragm. The method incorporates both the linearized modle of the electrostatic force and the nonlinear deflection model of a clamped ...
Iron, copper, zinc, manganese, nickel, cobalt, lead, cadmium and chromium in various apricot soil samples were determined by atomic absorption spectrometry this study. Microwave digestion method wet ashing efficiency compared for of the samples. Recovery values nearly found quantitative. The analysis results evaluated. accuracy procedures was confirmed analyzing Montana Soil Apple Leaves certif...
جنس senecio l. با دارا بودن حدود 1500 گونه، بزرگترین تیره کاسنی (آفتابگردان) محسوب می شود. گونه های این جنس پراکنش وسیعی در سراسر جهان دارند. این تحقیق با هدف مطالعه و بررسی وجود تنوع درون گونه ای و بین گونه ای در گونه های s. vernalis و s. glaucus در غرب و شمال غربی ایران با روش تعیین زیستگاه ویژه (determination of special station) d.s.s انجام شد. بر این اساس 20 زیستگاه ویژه برای این گونه ها تع...
A new method for the determination of the CKM rnwng matnx element i$b has been proposed It has been shown, that at future colhders one will measure the tb-xmxmg element with an accuracy 12-28 %
For assessing simultaneous visual processing in dyslexic and normal readers a multi-element processing task was used which required the report of a single digit of briefly presented multi-digit arrays. Dyslexic readers exhibited higher recognition thresholds on 4- and 6-digit, but not on 2-digit arrays. Individual recognition thresholds on the multi-digit arrays were associated with number of e...
A fast and reliable method for the analysis of airborne loaded filters becomes more and more important for monitoring campaigns and inventory studies at sites with airborne pollution. Xray fluorescence spectroscopy (XRF) can perform quantitative analysis on filters without any pretreatment. Quantitative determination of various metals on loaded filters requires the use of calibration curves set...
Abstract Macroscale cleavage fracture toughness of high strength steels is strongly related to the hard microstructural inclusions. Therefore, an accurate determination local stress on these inclusions based matrix necessary for statistical modelling macroscale fracture. This paper presents analytical equations quantitatively estimate from far-field matrix. The account inclusion shape, orientat...
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