نتایج جستجو برای: electrolytic concentration of soil solution

تعداد نتایج: 21217262  

Journal: :تحقیقات آب و خاک ایران 0
عزیز مجیدی دانشجوی سابق دکتری دانشکدة کشاورزی دانشگاه تربیت مدرس رسول راهنمایی استادیار دانشکدة کشاورزی دانشگاه تربیت مدرس محمد جعفر ملکوتی استاد دانشکدة کشاورزی دانشگاه تربیت مدرس

the role of calcite as related to the chemical behavior of boron (b) in calcareous soils was investigated through an assessment of b adsorption and desorption reactions on and from calcite in four ratios of solid to solution rate, three levels of ionic strength, and within a ph range of 7.5 to 11.5. experimental data indicated that b adsorption is increased by an increase in the solid to soluti...

Journal: :Environmental toxicology and chemistry 2010
Xiao-Fang Li Jin-Wei Sun Yi-Zong Huang Yi-Bing Ma Yong-Guan Zhu

Copper toxicity in 17 Chinese soils was screened using a substrate-induced nitrification assay to generate information for the development of a terrestrial biotic ligand model (tBLM). The leaching effect on the Cu toxicity thresholds was investigated. Both the total Cu-based median effective concentration (EC50) values (46.9-2726 mg/kg) and the solution Cu-based EC50 values (0.04-2.91 mg/L) in ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شاهد - دانشکده هنر 1391

now-a-days graphic design plays a major role in influencing culture, society, business, and customers, in such a way that one could look upon every individual as a potential customer. graphic designers seek to identify customers needs and find an intelligent solution for them. correct identification and understanding of those needs is the first step towards achieving ones goals. marketing knowh...

Journal: :علوم باغبانی 0
مریم حقیقی محسن کافی

abstract lettuce is one of the best accumulators of heavy metals and nitrate between leafy vegetables. through this research, it was tried to decreased cadmium absorption with humic acid (ha) and studies the effect of ha on the accumulation and metabolism of nitrate. plants were grown in the peat/perlite and irrigated with hoagland solution with addition of cadmium (2 and 4 mg l -1) and ha (100...

2011
H. L. Frush F. J. Bates

It has been found possible to prepare the comparatively rare salt, calcium melibionate, in any desired quantity by electrolytic oxidation of a crude solution of melibiose. The melibiose solution , prepared from commercial raffinose, is subjected to electrolytic oxidation in the presence of calcium carbonate and calcium bromide, and the calcium melibionate is crystallized directly from t he elec...

2017
Qianyue Sun Yuhui Yang Wenjing Luo Jinghui Zhao Yanmin Zhou

A calcium phosphate (CaP) coating on titanium surface enhances its biocompatibility, thus facilitating osteoconduction and osteoinduction with the inorganic phase of the human bone. Electrochemical deposition has been suggested as an effective means of fabricating CaP coatings on porous surface. The purpose of this study was to develop CaP coatings on a direct laser metal forming implant using ...

Journal: :The Journal of the Society of Chemical Industry, Japan 1957

پایان نامه :0 1391

uncertainty in the financial market will be driven by underlying brownian motions, while the assets are assumed to be general stochastic processes adapted to the filtration of the brownian motions. the goal of this study is to calculate the accumulated wealth in order to optimize the expected terminal value using a suitable utility function. this thesis introduced the lim-wong’s benchmark fun...

2011
Bokyoung Lee Chong Keun Lee Dong Soo Lee

A semi-continuous and automated method for quantifying atmospheric ammonia at the parts per billion level has been developed. The instrument consists of a high efficiency diffusion scrubber, an electrolytic on-line anion exchange device, and a conductivity detector. Water soluble gases in sampled air diffuse through the porous membrane and are absorbed in an absorbing solution. Interferences ar...

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