نتایج جستجو برای: values of r2

تعداد نتایج: 21178481  

2009
Jean-Louis Demangeat

a r t i c l e i n f o We measured 20-MHz R1 and R2 water proton NMR relaxation rates in ultrahigh dilutions (range 5.43· 10 − 8 M– 5.43· 10 − 48 M) of histamine in water (Hist-W) and in saline (Hist-Sal), prepared by iterative centesimal dilutions under vigorous agitation in controlled atmospheric conditions. Water and saline were similarly and simultaneously treated, as controls. The samples w...

2010
DOROTHEA LÖSEL PRISCA KREMER ARMIN M. SCHOLZ

In the context of future growth and performance testing, this study compares corresponding body composition results measured by two dual energy X-ray absorptiometry systems. To test the capability of each device to detect differences among experimental groups widely varying in body composition, 77 pigs from 6 purebred/crossbred groups were used for the experiment. Each pig was scanned consecuti...

Journal: :تحقیقات کاربردی خاک 0
ایمان صالح دانشگاه علوم کشاورزی و منابع طبیعی ساری عطااله کاویان دانشگاه علوم کشاورزی و منابع طبیعی ساری زینب جعفریان دانشگاه علوم کشاورزی و منابع طبیعی ساری رضا احمدی دانشگاه علوم کشاورزی و منابع طبیعی ساری

infiltration plays an important role in surface and subsurface hydrology and it is a key factor in the rainfall and runoff equations. the use of new approaches that have no limitations of common theoretical and empirical methods to determine infiltration relationships, will minimize the necessity of time consuming and costly experiments to determine permeability values and will make it possible...

2013
Amie Sluiter Ed Wolfrum

Biomass pretreatment processes often yield slurry, a two-phase material consisting of an aqueous phase with solubilised components and a solid phase with insoluble constituents. Chemical characterisation of this material using conventional wet chemical analysis requires that the two phases be analysed separately. We have previously demonstrated near infrared (NIR) models that successfully predi...

Journal: :اکو هیدرولوژی 0
حسین سلمانی دانشجوی دکتری آبخیزداری، دانشگاه علوم کشاورزی و منابع طبیعی گرگان عبدالرضا بهره مند دانشیار دانشگاه علوم کشاورزی و منابع طبیعی گرگان کاظم صابرچناری دانشجوی دکتری آبخیزداری، دانشگاه علوم کشاورزی و منابع طبیعی گرگان محمد رستمی خلج دانشجوی دکتری آبخیزداری، دانشکدۀ منابع طبیعی، دانشگاه تهران، کرج

according to variety of accessible hydrological models, evaluateing the efficiency of models for different management objectives are essential. therefore, models with simple structure and using minimal input that can provide an acceptable result can serve as an effective tool to watershed managers. hence, the objective of this research is to evaluate the relative performances of the lumped conc...

Journal: :Industrial health 2013
Emilia Paba Giovanna Tranfo Federica Corsetti Anna Maria Marcelloni Sergio Iavicoli

Assessment of exposure to airborne endotoxins has been studied for several years, especially in occupational environments, but a large number of procedures are used for sampling and analysis. This lack of standardization makes it very difficult to compare results and set internationally accepted threshold limit values (TLVs) or occupational exposure limits (OELs) for endotoxin exposure. This pa...

2017
Minghai Hong Wenzhi Zeng Tao Ma Guoqing Lei Yuanyuan Zha Yuanhao Fang Jingwei Wu Jiesheng Huang

Crop coefficients (Kc) are important for the development of irrigation schedules, but few studies on Kc focus on saline soils. To propose the growth-stage-specific Kc values for sunflowers in saline soils, a two-year micro-plot experiment was conducted in Yichang Experimental Station, Hetao Irrigation District. Four salinity levels including non-salinized (ECe = 3.4–4.1 dS·m–1), low (ECe = 5.5–...

2014
Paul S. Mertz Kenneth B. Sloan

Here we report the experimental log maximum fluxes of n = 9 non-steroidal anti-inflammatory drugs (NSAID) through silicone membranes from the lipid mineral oil (experimental (Exp.) log JMPMO) and correlate those Exp. log JMPMO values with their experimental log maximum fluxes through human skin in vivo from mineral oil (Exp. log JMHMO). The correlation was only fair (r2 = 0.647) for n = 9 but i...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2007
samad ahadian siamak moradian farhad sharif mohammad amani tehran mohsen mohseni

an artificial neural network (ann) was used to analyse the capillary rise in porous media. wetting experiments were performed with fifteen liquids and fifteen different powders. the liquids covered a wide range  of  surface  tension ( 15.45-71.99  mj/m2 )  and  viscosity (0.25-21 mpa.s). the powders also provided an acceptable range of particle size (0.012-45 μm) and surface free energy (25.54-...

A. Elango A.K. Thiruvenkadan K. Sudhakar S. Panneerselvam T. Ravimurugan,

Data on body weight and body measurements (body length, height at withers, chest girth and paunch girth) of adult Kilakarsal sheep have been collected from 124 adult animals managed at the farmers filed in Tirunelveli districts of Tami Nadu, India to estimate the body weight from body measurements. The data were subjected to standard statistical analysis using SPSS software and linear regressio...

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