نتایج جستجو برای: mgse

تعداد نتایج: 25  

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

در این پایان نامه ویژگی های الکترونی و نوری نانولایه های mgse/ge با دو ضخامت متفاوت از رهیافت نظریه تابعی چگالی با استفاده از کد محاسباتی wien2k محاسبه شده اند. برای محاسبه پتانسیل تبادلی همبستگی از تقریب شیب تعمیم یافته استفاده می شود. در ابتدا ویژگی های الکترونی و ساختاری مانند پارامتر شبکه، مدول حجمی، مشتق مدول حجمی نسبت به فشار و چگالی حالت های الکترونی برای حالت انبوهه ترکیب های mgseو geمح...

Journal: :Cosmetics 2021

This project aimed to apply eco-friendly extraction methods Crocus sativus L. by-product (flowers without stigmas i.e., tepals composed of petals and sepals) recover extracts with high antioxidant capacity polyphenol content, be used in cosmetic products. Flowers grown two different Italian regions (Sample 1—Alba Piemonte, north Italy Sample 2—Sibillini Marche, centre Italy) were subjected for ...

Journal: :Journal of Magnetic Resonance 2021

Inhomogeneous magnetic fields generated in porous media due to differences susceptibility at solid/liquid interfaces and intrinsic or artificially doped impurities can be used gain insight into the molecular dynamics of fluid structure a medium using concept NMR modulated gradient spin echo method. We extended theory this method case an inhomogeneous field that cannot approximated by uniform gr...

2018
Raquel Caballero Stefan G. Haass Christian Andres Laia Arques Florian Oliva Victor Izquierdo-Roca Yaroslav E. Romanyuk

The introduction of the alkaline-earth element Magnesium (Mg) into Cu2ZnSn(S,Se)4 (CTZSSe) is explored in view of potential photovoltaic applications. Cu2Zn1-xMgxSn(S,Se)4 absorber layers with variable Mg content x = 0…1 are deposited using the solution approach with dimethyl sulfoxide solvent followed by annealing in selenium atmosphere. For heavy Mg alloying with x = 0.55…1 the phase separati...

Journal: :Physical chemistry chemical physics : PCCP 2015
Milena C C Wobbe Martijn A Zwijnenburg

The nature and magnitude of the optical gaps of rocksalt alkaline earth (MgO, CaO, SrO, MgS, MgSe) and transition metal chalcogenide (CdO, PbS) nanoparticles are studied using time-dependent density functional theory (TD-DFT) calculations on (MX)32 nanoparticles. We demonstrate, just as we previously showed for MgO, that TD-DFT calculations on rocksalt nanoparticles require the use of hybrid ex...

2016
Gerhard Illing Jin Cao

The paper models the interaction between risk taking in the financial sector and central bank policy for the case of pure illiquidity risk. It is shown that, when bad states are highly unlikely, public provision of liquidity may improve the allocation, even though it encourages more risk taking (less liquid investment) by private banks. In general, however, there is an incentive of financial in...

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