نتایج جستجو برای: chemical parameters

تعداد نتایج: 931289  

2007
Maria Drakaki Alkis A. Hatzopoulos Stylianos Siskos Dimitrios K. Papakostas

— Various model parameter calculation equations of RF CMOS inductors are compared. The calculation equations are using as variables either Y, Z-parameters or S-parameters. Results are based on on-wafer RF S-parameter measurements of a 3.75 turn spiral inductor fabricated in AMIS 0.7 μm CMOS DM1P n-well technology. Results obtained with calculation equations for a differentially driven inductor ...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0

banana samples were purchased from a local market in sabzevar located at northeast of iran. then samples stored at refrigerator between 5–10oc during experiments, for prevention of chilling injury, 36 samples at three replications were prepared so as bananas were peeled and sliced with a sharp knife at three thicknesses (3, 5 and 10 mm) and then treated by three pretreatment methods (t1: chemic...

Journal: :caspian journal of environmental sciences 2007
d.m ram rao j. kodandaramaiah m.p. reddy r.s. katiyar v.k. rahmathulla

the influence of vam fungi and bacterial biofertilizer (bbf) with 50% reduction in the recommended dose of (n and p) chemical fertilizers on leaf quality traits of mulberry variety (s-13) and its impact on silkworm (pm ? nb4d2) growth and cocoon characters were studied under semi-arid conditions. four different treatments were imposed i.e., t1: control (only 100% npk); t2: vam (50% cut in p); t...

2009
Dylan F. Williams Paul D. Hale Jack C. M. Wang

We develop a covariance-matrix-based uncertainty analysis for vector-network-analyzer scattering-parameter measurements. The covariance matrix captures all of the measurement uncertainties and statistical correlations between them. This allows the uncertainties of vector-network-analyzer scattering-parameter measurements to be propagated into the uncertainties of other quantities derived from s...

Background & Aim: Leachate and gas emissions from solid waste landfill are two causes of groundwater pollution. Leachate contains large quantities of organic and inorganic matters, and microorganisms which have high potential to contaminate groundwater. The aim of this study is the comparison of the chemical quality of water wells around the Mashhad's old landfill site in 2014. Methods: This...

2013
Jongmin Kim Duc Long Luong Wansoo Nah SoYoung Kim JONGMIN KIM

An efficient measurement methodology is proposed to construct the scattering parameters of a multi-port device using a four-port vector network analyzer (VNA) without the external un-terminated ports. By using the four-port VNA, the reflected waves from the un-terminated ports could be minimized. The proposed method significantly enhances the accuracy of the S-parameters with less number of mea...

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