نتایج جستجو برای: 1 as urea

تعداد نتایج: 7112350  

2008
Feng Wu Yun-Qian Zhang Qian-Jiang Zhu Sai-Feng Xue Zhu Tao

In the crystal structure of the title compound, C(6)H(8)N(2)O·CH(4)N(2)O·H(2)O, mol-ecules are linked via N-H⋯O, O-H⋯N and O-H⋯O hydrogen bonds, forming a three-dimensional framework.

Journal: :Physical chemistry chemical physics : PCCP 2011
Filip Meersman Daniel Bowron Alan K Soper Michel H J Koch

The interaction of the osmolytes trimethylamine N-oxide (TMAO) and urea in aqueous solutions at 40 °C was investigated by isotopic substitution neutron scattering at a TMAO mole fraction of 0.05 and TMAO/urea concentration ratios of 1 : 2 and 1 : 4. The partial pair distribution functions obtained by the empirical potential structure refinement method are consistent with those obtained previous...

Journal: :journal of chemical health risks 0
mohammad reza haj seyed hadi deptartment of agronomy, islamic azad university, roudehen branch, roudehen, iran mohsen abarghooei fallah deptartment of agronomy, islamic azad university, roudehen branch, roudehen, iran mohammad taghi darzi deptartment of agronomy, islamic azad university, roudehen branch, roudehen, iran

this study was performed to assess the effects of nitrogen fertilizer and vermicompost on qualitative and quantitative yield of chamomile ( matricaria chamomilla l.). it was conducted at the research fields of ran company located in firouzkouh, iran, in 2013. treatments were consisted of 1) control, 2) 100% nitrogen from urea, 3) 100% nitrogen from ammonium nitrate, 4) 75% nitrogen from urea an...

Mansoreh Khalatbari Mohammad Nasri,

Nutritional management is an important factor in the success of crop production. In order to evaluate different level of nitrogen, potassium and zinc fertilizers on agro physiological characteristics of green bean a field experiment was conducted as split-plot based randomized complete block design in three replications, in Varamin university field research during 2011. The main plot included u...

Journal: :پژوهش های کاربردی زراعی (زراعت سابق) 0
شهرام کیانی استادیار گروه خاکشناسی دانشکده کشاورزی دانشگاه شهرکرد علیرضا حسین پور دانشیار گروه خاکشناسی دانشکده کشاورزی دانشگاه شهرکرد رامین ایرانی پور عضو هیات علمی بخش تحقیقات خاک و آب مرکز تحقیقات کشاورزی و منابع طبیعی استان چهارمحال و بختیاری

low nitrogen (n) use efficiency is considered to be one of the major problems in wheat production fields all over the world. this experiment was conducted to evaluate the effects of nitrification inhibitor (ni) 3, 4- dimethylpyrazole phosphate (dmpp) on the yield and nitrogen use efficiency of spring wheat (triticum aestivum l.) cv. bahar during 2011 at shahrekord university. a factorial experi...

Journal: :The Journal of experimental biology 1994
Withers Hefter Pang

The possible role of urea and trimethylamine oxide (TMAO) in providing positive buoyancy has been examined for elasmobranch fishes. TMAO has a considerably lower density than an equimolar solution of urea, and solutions of both TMAO and urea are considerably less dense than equimolar solutions of most other body fluid solutes. The body fluid composition of three elasmobranchs, the whiskery shar...

2013
Ahmad Adlie Shamsuri Rusli Daik

An ionic liquid, 1-n-butyl-3-methylimidazolium chloride (BmimCl) was blended with urea at 1:1 mole ratio to create a BmimCl/Urea mixture. The agarose/talc composite films containing the BmimCl/Urea mixture were then acquired through a gelation method. The weight ratio of agarose and talc was fixed at 4:1, while the content of BmimCl/Urea was varied from 0 to 10 wt % relative to the overall weig...

Journal: :Comparative biochemistry and physiology. Part A, Molecular & integrative physiology 2003
M Danielle McDonald Martin Grosell Chris M Wood Patrick J Walsh

The objective of this study was to determine whether the pulsatile facilitated diffusion transport mechanism (tUT) found in the gills of the gulf toadfish (Opsanus beta) and the active secretion transporter thought to be present in its kidney could be saturated when faced with elevated plasma urea concentrations. Toadfish were infused with four consecutive exogenous urea loads at a rate of 0, 1...

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