نتایج جستجو برای: cis 1

تعداد نتایج: 2783174  

پایان نامه :دانشگاه بین المللی امام خمینی (ره) - قزوین - دانشکده علوم پایه 1392

فرض کنید ? یک گراف بامجموعه رئوس v(?)= {v1 , …vn} و مجموعه یال ها ی e(?) = {e1 , …,en} باشد. ماتریس مجاورت گراف? که با a= [aij] نمایش داده می شود،ماتریس n×n است که در آن aij = 1 اگر vi به vj مجاور باشد درغیراین صورت aij=0 . چندجمله ای det(??-a)= (?)? راچندجمله ای مشخصه گراف ? می نامیم. ریشه های (?)? به همراه تکرر طیف ? نامیده می شوند. بوضوح چون ضرایب چندجمله ای مشخصه اعدادی صحیح هستندنتیجه می ش...

Journal: :Journal of oleo science 2013
Kazuaki Yoshinaga Masaharu Asanuma Chao Xu Hoyo Mizobe Koichi Kojima Toshiharu Nagai Fumiaki Beppu Naohiro Gotoh

The gas chromatography-flame ionization detector equipped with a higher polarity column (i.e., SP-2560) has often been used for the quantification of trans-fatty acids in food. In particular, AOCS Ce 1h-05, the official method of the American Oil Chemists' Society (AOCS), is a highly effective method to separate the isomers of trans-fatty acids. In this study, the resolution behavior and the re...

Journal: :European Journal of Inorganic Chemistry 2023

The reaction of [RuCl2(CO)3]2 and Te2Tpn2 (Tpn=thiophen-2-yl, C4H3S) in the absence light resulted formation cct-[RuCl2(CO)2(TeTpn2)2] (1) [cis(Cl)-cis(CO)-trans(TeTpn2)] TeTpn2 (2) together with precipitation tellurium. complex 1 monotelluride 2 were characterized by NMR spectroscopy single-crystal X-ray diffraction. decomposition to has been monitored 125Te seemed be faster than ligand substi...

Journal: :Journal of dairy science 2014
P Frutos P G Toral E Ramos-Morales K J Shingfield A Belenguer G Hervás

Previous investigations have shown that cobalt (Co) modifies milk fat composition in cattle, consistent with an inhibition of stearoyl-coenzyme A desaturase (SCD) activity, but it remains unclear whether other ruminant species are also affected. The present study examined the effects of oral administration of Co acetate on intake, rumen function, and milk production and fatty acid (FA) composit...

Journal: :Molecular Catalysis 2021

We investigate the effect of crystalline structure iron oxide catalysts on oxidative dehydrogenation (ODH) n-butene. ODH reactions n-butene were carried out with a fixed-bed flow reactor at 450 °C under but-1-ene (1-C4H8) or cis-but-2-ene (cis-2-C4H8)(mL/min)/O2(mL/min) ratio 5/2.5. Of various oxide-based (α-, β-, γ-, ε-Fe2O3, Fe3O4, ZnFe2O4), ε-Fe2O3 showed highest activity. To best our knowle...

Journal: :Journal of inorganic biochemistry 1996
S González J M Tercero A Matilla J M Pérez V M González C Alonso J Niclós-Gutiérrez

Cis-Dichloro(diaminosuccinic acid)palladium(II), cis-[Pd(H2dasa)Cl2] (I), or cis-dichloro(diaminosuccinate diethyl ester)palladium(II), cis-[Pd(Et2dasa)Cl2] (II) reacts with two equivalents of AgClO4 to give insoluble Pd(dasa) or an aqueous solution of [Pd(Et2dasa) (H2O)2](ClO4)2, respectively. Three solutions of this salt were titrated with NaOH (I = NaClO4 (0.15M),37 degrees C), and 133 E(H+)...

Journal: :organic chemistry research 2016
raheleh afzali mohammad vakili sayyed faramarz tayyari hossein eshghi

molecular structure, isomerism, conformational stability and intramolecular hydrogen bonding (ihb) of cis-enol forms of 1-(n-pyridyl)butane-1,3-diones (npbd) (n = 2, 3, or 4) have been investigated by means of density functional theory (dft) calculations. energy differences for all possible npbd cis-enol forms of isomers with respect to the most stable form of the corresponding isomer have been...

Journal: :Safety Science 2023

A Safety Science focus on research in the science and technology of human industrial safety. Critical Infrastructures (CIs), as a crucial part urban technological systems, are highly correlated with safety management terms their resilience when cities facing crisis or disaster. According to many studies, indicator-based assessment has been used frequently manage CIs recent decades. Defining cha...

ژورنال: فیزیک کاربردی 2015

لایه های جاذب بر پایه (CuInS(CIS توجهات زیادی را به دلیل گاف نواری مناسب و جذب بالای اپتیکی به خود اختصاص داده اند. در کنار آن، استفاده از زیرلایه های انعطاف پذیر در ساخت سلول های خورشیدی می تواند مزیت استفاده از این لایه های جاذب را مضاعف کند. سلول های خورشیدی بر پایه لایه جاذب CIS، در نتیجه بازده بالا، هزینه ساخت پایین و کاربریهای گوناگون توجهات زیادی را به خود جلب کرده است. این لایه ها می تو...

2012
Gregory J. Domski Sallie A. Hohenboken Dale C. Swenson

The Ru(II) atom in the title compound, [RuCl(2)(C(31)H(29)N(2)P)(CO)(2)]·CH(2)Cl(2), exhibits a distorted octahedral coordination environment. The bond angles of the cis substituents at the Ru(II) atom range from 82.72 (9) to 97.20 (3)°. This mol-ecule is of inter-est in the field of catalytic transfer hydrogenation.

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