نتایج جستجو برای: energy gap e

تعداد نتایج: 1765474  

Journal: :Government Information Quarterly 2005
José Ramón Gil-García Theresa A. Pardo

Strategies are systematic and long-term approaches to problems. Federal, state, and local governments are investing in the development of strategies to further their e-government goals. These strategies are based on their knowledge of the field and the relevant resources available to them. Governments are communicating these strategies to practitioners through the use of practical guides. The g...

Maziar Noei Mojgan Ghaemizadeh

Electrical sensitivity of a boron nitride nanotube (BNNT)  was examined toward C2H5OH molecules by using density functional theory (DFT)  calculations . It was founding that the adsorption energy(Ead) of ethanol on the  pristine  nanotubes  is about -51.5 kJ / mol, but when  the nanotube has been doped  with Si and Al atoms , the adsorption  and recovery time ch...

2008
Vikas Jain Shalini Kesar

Majority of the studies reported in e-government literature identify the challenges involved in any e-government implementation from technical or project implementation perspective. In contrast, in this study, we take the citizen centric perspective to identify the factors and issues that influence the success of e-government implementation at local level. In this paper, we report the findings ...

2014
D. P. Samajdar S. Dhar

The valence band anticrossing model has been used to calculate the heavy/light hole and spin-orbit split-off energies in InAs(1-x)Bi(x) and InSb(1-x)Bi(x) alloy systems. It is found that both the heavy/light hole, and spin-orbit split E + levels move upwards in energy with an increase in Bi content in the alloy, whereas the split E - energy for the holes shows a reverse trend. The model is also...

A Ahmad, M Mohib-ul Haq,

A simple relation between the optical electronegativity, energy gap, refractive index and electronic polarizability is given for ternary chalcopyrite semiconductors. Energy gap has been evaluated from the optical electronegativity whereas refractive index and electronic polarizability values have been evaluated from the energy gap by proposing a linear relation between them. The calculated valu...

Journal: :journal of physical and theoretical chemistry 0
z. yousefian department ofchemistry, north tehran branch, islamic azad university, tehran, iran

in this work, we have studied binding of clonidine drug (c9h9cl2n3) with zigzag single walled carbonnanotubes (swcnt) (5, 0) by theoretical methods of theory using gaussian 09 software package.binding energies, nmr parameters and homo- lumo gap energy were calculated. results frombinding energies indicate that it is possible thermodynamically to bind clonidine drug to swcnt.the calculated nmr p...

Journal: :journal of sciences islamic republic of iran 0

thin films of binary bi 0 -teo and bi 0 -v 0 systems were prepared by the thermal co-evaporation technique in a vacuum at room temperature. the optical absorption edge of these systems are studied in the wavelength of 200-800 nm using a perkin-elmer uv/vis spectrophotometer. it is found that the value of n=3/2 in the davis-mott equation is best fitted for the fundamental absorption edge for the...

محمدی, سعید, پذیرنده, علی, گلیان, فرشته,

The heat transfer process from pellet to coolant is one of the important issues in nuclear reactor. In this regard, the fuel to clad gap and its physical and chemical properties are effective factors on heat transfer in nuclear fuel rod discussion. So, the energy distribution function of electrons with an energy about 0.5 MeV in fuel rod gap in Busherhr’s VVER-1000 nuclear reactor was investiga...

Electrical sensitivity of a boron nitride nanotube (BNNT) was examined toward aniline (C6H5NH2) molecule by using density functional theory (DFT) calculations at the B3LYP/6-31G (d) level, and it was found that the adsorption energy (Ead) of aniline on the pristine nanotubes is a bout -19.03kcal/mol. But when nanotube has been doped with Si and Al ato...

1998
Alberto Franceschetti Lin-Wang Wang Alex Zunger

In a recent Letter [1] Öğüt, Chelikowsky, and Louie (OCL) calculated the optical gap of Si nanocrystals as ε g,OCL = ε qp g,LDA − E e−h Coul, where ε qp g,LDA is the quasi-particle gap in the local-density approximation (LDA) and E Coul is the electron-hole Coulomb energy. They argued that their method produces different results from conventional approaches (e.g. pseudopotential [2]). We show i...

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