نتایج جستجو برای: sulfatation rate

تعداد نتایج: 960391  

Journal: :MATEC web of conferences 2021

During the operation of battery, its parameters change, declining with rate affected by natural aging processes or faults. To obtain information about changes in battery when faults occur and develop, methods their simulation have been developed. The change voltage under influence reference load is determined to reduce charging rate, oxidation pole terminals, plates sulfatation. It established ...

Journal: :The Journal of Clinical Endocrinology & Metabolism 1999

2010
Maria Kristina Parr Ulrich Flenker Wilhelm Schänzer

According to the regulations of the World Anti-Doping Agency (WADA) [1], anabolic androgenic steroids are classified as prohibited substances in sports. They are covered in the section “S1. Anabolic Agents 1. Anabolic Androgenic Steroids (AAS)”. This section is further subdivided into “a. Exogenous AAS” and “b. Endogenous AAS”. AAS represent the class of substances most frequently detected in h...

Journal: :Journal of mass spectrometry : JMS 2003
Roland F Staack Gieselher Fritschi Hans H Maurer

Studies are described on the phase I and II metabolism and the toxicological analysis of the piperazine-derived designer drug 1-(3-trifluoromethylphenyl)piperazine (TFMPP) in rat urine using gas chromatography/mass spectrometry (GC/MS) and liquid chromatography/mass spectrometry (LC/MS). The identified metabolites indicated that TFMPP was extensively metabolized, mainly by hydroxylation of the ...

Journal: :Chemosphere 2012
Joseph G Schnitzler Peter H M Klaren Jean-Marie Bouquegneau Krishna Das

Thyroid functional status of wild fish in relation with the contamination of their environment deserves further investigation. We here applied a multi-level approach of thyroid function assessment in 87 wild sea bass collected near several estuaries: namely the Scheldt, the Seine, the Loire, the Charente and the Gironde. Thyroxine (T(4)) and triiodothyronine (T(3)) concentrations in muscle were...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند - دانشکده کشاورزی 1390

abstract this study is carried out to determine the chemical composition in the three vegetative stages of the haloxylon sp., degradation parameters, with adding naoh and ca(oh2 ). for this purpose, in may and october and january 2010 enough some haloxylon sp. of the ammary area was prepared. crude protein and ash percentage are decrease, neutral detergent fiber percentage with pragress stage ...

پایان نامه :0 1391

employees always concern about losing their job , or in other word , losing their income resources. for this purpose, every government requires strong system for covering these concerns. the unemployment insurance (ui) program’s can be used for achieving this goal. in this thesis, we price ui based on the insurance history of employee and the duration of being unemployed. we use the weibull dis...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده فنی 1391

the study of air infiltration into the buildings is important from several perspectives that may be noted to energy and design of hvac systems, indoor air quality and thermal comfort and design of smoke control systems. given the importance of this issue, an experimental and numerical study of air infiltration through conventional doors and windows has been explored in iran. to this end, at fir...

Journal: :محیط شناسی 0
محمد پروین نیا استادیار، بخش مهندسی عمران و محیط زیست, دانشگاه یاسوج غلامرضا رخشنده رو دانشیار بخش عمران و محیط زیست,دانشکده مهندسی دانشگاه شیراز

moisture and air pollutions intensify metallic and nonmetallic surface corrosions. corroded surfaces exposed to rain washing cause pollution transportation in water and soil environment, especially in industrial areas. investigation of storm runoff quality in pars special economic energy zone (pseez) has shown heavy metals in storm basins of gas refineries and petrochemical industries.in this p...

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