نتایج جستجو برای: growth parameters

تعداد نتایج: 1363288  

Journal: :علوم باغبانی ایران 0
علی ساعی پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کارشناسی ارشد علیرضا طلایی پردیس کشاورزی و منابع طبیعی دانشگاه تهران، استاد ذبیح اله زمانی پردیس کشاورزی و منابع طبیعی دانشگاه تهران، دانشیار استوارت تاستین پژوهشگر موسسه تحقیقاتی گیاه و غذا، نیوزیلند

an analysis of the stages of crop growth presents an important step in the improvement of production management. through growth analysis, planning for planting systems, fertilization, pruning operations, harvest time as well as obtaining economical yield can be more accessible. therefore, a development of mathematical models simulating plant growth would be helpful in improving crop management,...

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: :iranian journal of chemistry and chemical engineering (ijcce) 2014
mahshad alaei mona jalali alimorad rashidi

a facile and simple method was proposed to control the size and shape of the mgo nano structures with high surface area in the presence of efficient and cheap templates like peg 200, peg 600, peg 4000 and sorbitol at low temperature within a little time. nano rods and nanoparticles have been achieved by applying these templates and altering other growth parameters. the products were characteriz...

The aim of the present study was to evaluate the effects of dietary Guava (Psidium guajava) leaves powder (GLP) on growth parameters, feed utilization as well as some serum parameters of common carp (Cyprinus carpio) fingerlings. Common carp fingerlings (18.88±0.27 g) were supplied and stocked in twelve fiberglass tanks at density of 14 fish per tank. Fish were fed experimental diets contains 0...

F. Al-Masri M. Hassanzadeh,

The present study was designed to examine the anatomical parameters of the cardiopulmonary system, the function of venous blood gas parameters and the development of ascites incidence in two genetic line chickens. Three hundred forty day-old chickens from two pure broiler breeder lines, which were different in their growth rate and susceptibility to ascites syndrome were obtained. The relative ...

Journal: :iranian journal of biotechnology 2007
marjan varedi kolaei ramin karimzadeh seyed abbas shojaosadati jafar towfighi

in this work, mathematical modeling of microbial(trichosporon sp.) biomass production in a stirred tankbioreactor and in an external airlift bioreactor has beeninvestigated. a model based on a tanks-in-seriesmodel without back-flow has been used to simulate theproduction of single cell protein in the external airliftbioreactor under an unsteady condition and withoutoxygen limitation, utilizing ...

Journal: :IOP Conference Series: Materials Science and Engineering 2018

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...

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