نتایج جستجو برای: initial water content

تعداد نتایج: 1263313  

Journal: :journal of agricultural science and technology 2014
m. j. vazquez f. chenlo r. moreira b. pacios l. mayor

water desorption isotherms of raw and osmotically dehydrated (at 25ºc, for 2 hours, with 10 and 26% nacl solutions) garlic slices at different temperatures (25, 40, 55, and 70ºc) were experimentally determined over a range of water activity of 0.05–0.90 using a static gravimetric method. desorption isotherms can be classified as type iii. the water desorption isotherms of raw garlic clearly sho...

2014
H. S. Wong

7 We propose a new method to estimate the initial cement content, water content and free water/cement ratio (w/c) 8 of hardened cement-based materials made with Portland cements that have unknown mixture proportions and 9 degree of hydration. This method first quantifies the composition of the hardened cement paste, i.e. the 10 volumetric fractions of capillary pores, hydration products and unr...

Journal: :پژوهش آب در کشاورزی 0
علیرضا جعفرنژادی استادیار بخش تحقیقات خاک و آب مرکز تحقیقات کشاورزی و منابع طبیعی خوزستان. سید محمد هادی موسوی فضل مربی پژوهش بخش تحقیقات خاک و آب مرکز تحقیقات کشاورزی و منابع طبیعی خوزستان.

nowadays, application of unconventional water such as wastewater is one of the strategies for preventing water deficit. this study was conducted to evaluate effect(s) of treated wastewater application on microbial and chemical contamination of soil and wheat (chamran v.). five treatments included t1 (irrigation with 100% fresh water), t2 (75% fresh water + 25% wastewater), t3 (50% fresh water +...

1998
David B. Butler Rosemary J. Knight

The effect of clay content on the electrical response of steamflooded geologic material is studied using a combination of laboratory experiments and numerical simulations. The presence of clay can increase the conductivity of a steam zone by providing a surface conduction path that is enhanced strongly by temperature increases. Clay also increases the residual water saturation in a steam zone, ...

2004
Michael L. Whiting Lin Li Susan L. Ustin

This paper presents an approach to estimating soil moisture content through fitting an inverted Gaussian function to the continuum in soil spectra. The soil moisture Gaussian model (SMGM) estimates the water content by the declining reflectance in the near infrared (NIR) and shortwave infrared (SWIR) regions, 1.2–2.5 Am, due to the spreading of the fundamental water absorption at 2.8 Am. Convex...

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