نتایج جستجو برای: 14 water salt mixture

تعداد نتایج: 1034077  

Journal: :شیلات 0
غلامرضا رفیعی استاد گروه مهندسی شیلات دانشکدة منابع طبیعی دانشگاه تهران، کرج، ایران کامران رضایی توابع فارغ التحصیل دورة دکتری رشتة مهندسی شیلات دانشکدة منابع طبیعی دانشگاه تهران، کرج، ایران مایک فرینسکو کارشناس ارشد آبزی پروری بخش توسعة علوم شیلات دانشکدة کشاورزی دانشگاه ایالتی کارولینای شمالی، امریکا هری دانیلز استاد بخش آبزی پروری آبزیان گرمابی دانشکدة زیست شناسی دانشگاه ایالتی کارولینای شمالی، امریکا محمد مهدی شعیری دانشگاه جامع علمی کاربردی سرپل زهاب، ایران

the main objective of the present study was investigation on influences of different brackish water sources on freshwater prawn larval quality and developmental indices. for this study, along a larval period, four brackish water treatments with 12 ppt salinity including diluted marine water, brackish water from marine crystalline salt, brackish water with compounds of new formula and brackish w...

محمدی, حمید, کدیور, الهام, کفیل زاده, فرشید,

Background and Aim: In this research we isolated the bacterial species degrading polycyclic aromatic hydrocarbons (PAHs) and determined optimal salt concentration for PAH degradation.Materials and Methods: We used naphthalene and anthracene as the only sources of carbon for isolating PAH-degrading bacteria the main culture medium was ONR7a. The bacteria isolated by this method were used for the...

2004
CURT P. RICHTER

Adrenalectomized rats are known to have a defmitely increased salt need, inasmuch as the administration of large quantities of salt either greatly reduces or eliminates the symptoms of insufficiency, and actually increases the survival incidence But is this need accompanied by an increased salt appetite, and will the adrenalectomized rat, if given free access to salt take sufficient quantity to...

2009
Ryuichi Suenaga Alain Vautrin Yoshitake Nishi

The influence of dipping in hot salt solution on water absorption in nylon6 composites with dispersed aluminum powders was investigated. Dipping in hot salt solution (3mass%NaCl in distilled water) for 10 s at 373K increased the overweight of composite samples, whereas the addition of aluminum with dispersed powders (A1-addition) from zero to 40 vol%Al decreased the overweigh of the sample. Bas...

Journal: :Plant, cell & environment 2002
R. Munns

Plant responses to salt and water stress have much in common. Salinity reduces the ability of plants to take up water, and this quickly causes reductions in growth rate, along with a suite of metabolic changes identical to those caused by water stress. The initial reduction in shoot growth is probably due to hormonal signals generated by the roots. There may be salt-specific effects that later ...

2016

The dynamic viscosity was measured for water-phenol binary mixture at several concentrations and temperatures to determine the critical concentration and critical temperature. The critical concentration was determined at XC=3.90% by weight of phenol, the critical temperature was TC=67.0°C using the viscosity measurement while TC=67.8°C from an indication of electrical conductivity measurements....

2013
SHYAN-YIH CHOU

AB STRA CT In order to assess the renal tubular site(s) at which sodium reabsorption is enhanced in chronic sodium-depletion, seven normal dogs, six saltdepleted dogs, and three normal dogs receiving aldosterone were studied during a steady-state water diuresis under Pentothal anesthesia and during progressive hypotonic saline diuresis. For both maintenance of the water diuresis and progressive...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2014
Michele S McAfee Onofrio Annunziata

For ternary polymer-salt-water systems at low polymer concentration (0.5%, w/w), we have experimentally investigated the effect of polymer size on polymer diffusiophoresis (i.e., polymer migration induced by a salt concentration gradient) and salt osmotic diffusion (i.e., salt migration induced by a polymer concentration gradient). Specifically, Rayleigh interferometry was employed to measure t...

2016
Dinesh Chandra Shaha Yang-Ki Cho

Freshwater input to estuaries may be greatly altered by the river barrages required to meet human needs for drinking water and irrigation and prevent salt water intrusion. Prior studies have examined the salt plugs associated with evaporation and salt outwelling from tidal salt flats in single-channel estuaries. In this work, we discovered a new type of salt plug formation in the multi-channel ...

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