نتایج جستجو برای: transition

تعداد نتایج: 262109  

Reaction mechanism among indoline-2,3-dione, pyrrolidine-2-carboxylic acid and (Z)-2-(1-(2-hydroxynaphthalen-1-yl)ethylidene)hydroxycarboxamide to form 1’-((((aminooxy)carbonyl)amino)methyl)-2’-(1-hydroxynaphthalen-2-yl)-2’-methyl-1’,2’,5’,6’,7’,7a’-hexahydrospiro[indoline-3,3’-pyrrolo[1,2-a]imidazole-2-one was investigated using density functional theory (DFT) at B3LYP basis theory. The three-...

حسین خسرو آبادی, , وحید دادمهر ومحمد اخوان, ,

  Single phase polycrystalline Gd1-xPrxBa2Cu3O7-δ samples with x=0.05 , 0.10, and 0.15 have been prepared by standard solid state reaction technique and characterized by XRD and SEM analysis. The electrical resistivity, Hall effect and magnetoresistance measurements have been on the samples. The electrical resistivity measurements indicate a reduction of transition temperature (Tc) and an incre...

Bahram Haghighi, Mohamad Yari, Shahraz Tori,

The mechanism by which bi-and trivalent cations affect human liver phosphatidatephosphohydrolase (PAP) activity was investigated. Bivalent cations up to 1 mM increased PAP activity whereas at higher concentrations the activity of the enzyme decreased. The stimulatory concentration for trivalent cations such as Al3+ and Cr3+, however, was much lower being 2 m M and 1 m M, respectively. All catio...

خوشبین فر, سهیل, رجب نژاد, محدثه, قاسمی زاد, عباس,

In this Research, the transition from equilibrium ignition to non-equilibrium burn was studied by DEIRA4 code for simple spherical targets with the dimensions of several mm. It consisted of inner DT fuel and outer Au layers driven by the 209Bi heavy ions beam. Because of their higher plasma opacity, it was expected that they could trap much of the produced charged particles, radiation or even f...

رضایی, محبوبه, رفیعی, فروغ, سجادی هزاوه, محبوبه, سید فاطمی, نعیمه,

  Abstract   Background & Aim: Role transition from nursing student to clinical nurse is a sensitive stage in the nurses’ professional life. Many factors affect role transition and could change its outcome. The present study was designed with the aim of exploring the factors affecting the process of transition from nursing student to clinical nurse using the experiences of b...

General views have usually ignored the relation between the type of civil society and the type of political transitions. To address this shortcoming, the current article has reinvestigated this relation through a comparative study of revolutions in Egypt, Tunisia and Libya. In the framework of this relation, this article has demonstrated that remarkable development of civil society in Tunisia a...

Architecturally, the Seljuqs' dominion makes a significant shift from the Pre-Islamic Sassanid squinches into a sophisticated transition mechanism employed to change the walls of a square chamber to an octagonal base to set a dome which this initiated a new construction methodology to hybridize the previous experiences of Sassanid domes with new architectural tendencies since the previous under...

Journal: :Bulletin de l'Association de géographes français 2021

Consacrer deux journees a la transition, dont une aux approches geographiques de notion transition et seconde plus specifiquement focalisee sur les aspects des transitions energetique ecologique etait certainement un pari d’autant que l’organisation fut tres largement bouleversee par pandemie qui obligea d’abord le report mars septembre-octobre, puis l’obligation d’organiser cette deuxieme jour...

Journal: Iranian Economic Review 2018

T he main purpose of this article is to analyze exchange rate behavior based on monetary fundamentals in the context of Iranian economy over the period 1990:2 to 2014:3. To do so, two monetary exchange rate models is investigated, the first by regarding interest rate differential as a monetary variable, and the second one regardless of interest rate differential as a monetary variabl...

Structural and electronic properties of double perovskites Sr2BWO6 (B = Co, Ni, Cu)  were studied  for each of three magnetic configurations nonmagnetic, ferromagnetic, and antiferromagnetic by using density functional theory in generalized gradient approximations (GGA) and strong correlation correction (GGA + U). Due to magnetic transition from antiferromagnetic to nonmagnetic phase, an electr...

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