نتایج جستجو برای: band assignment
تعداد نتایج: 178110 فیلتر نتایج به سال:
Several novel mononuclear Zn(II) complexes, [Zn(bpy)L2], where bpy=2,2’-bipyridine and L=monoanions of phenylcyanamide (pcyd), 4-methylphenylcyanamide (4-Mepcyd), 3,5-dimethylphenylcyanamide(3,5-Me2pcyd),4-methoxyphenylcyanamide(4-MeOpcyd), 3,5-dimeth-oxyphenylcyanamide (3,5-MeO2pcyd), 3-chlorophenylcyanamide (3-Clpcyd), 2,3-dichlo...
boron nitride semiconducting zigzag swcnt, $b_{cb}$$n_{cn}$$c_{1-cb-cn}$, as a potential candidate for making nanoelectronic devices was examined. in contrast to the previous dft calculations, wherein just one boron and nitrogen doping configuration have been considered, here for the average over all possible configurations, density of states (dos) was calculated in terms of boron and nitrogen ...
The density of states optical absorption edge in polarized Ga1 xInxN/GaN quantum wells (x 0:14) is studied through photoluminescence excitation spectroscopy and effective mass theory. Within the vicinity of the main absorption edge in the range of 3.0–3.3 eV several extrema are resolved. On the basis of experimental polarization field values and established parameters a model of the electronic ...
Multi-hop relaying in cellular networks can greatly increase capacity and performance by exploiting the best available relay links to a base station. We envision an environment in which relay networks are dynamically formed when performance on the radio access network is degraded and then dissolved when the performance improves or the radio spectrum on which the relay network is operating is re...
A model of lunar spectral irradiance incorporates data from multiple spacecraft and surface telescopic observations. Using 12 sources derived 90,000 images, models that are smooth across both geometry wavelength involve only about 35 coefficients found with a mean weighted residual <0.5 % . An libration orbiter observations is used to reduce the number required. Derivation uses iterative assign...
Background and Purpose: Accurate calculating and evaluating of cost of services would result in clarity on the ways to achieve the desired goals in outsourcing of health centers and health comprehensive centers. The present study was carried out to calculate the total cost of services at one health center before and after assignment to private sector (2014-2016) in Iran. Methods: This researc...
Assignment model is a powerful operations research techniques that can be used to solve assignment or allocation problem. This study applies the assignment model to the course allocation problem in Nigeria tertiary institution in order to maximize lecturers’ effectiveness. A well-structured questionnaire was used to obtain data from lecturers and solved with Hungarian method. The study revealed...
In polycrystalline samples of superconducting MgCNi3, the critical temperature and the specific heat were measured as a function of magnetic field. A Wertheimer–Helfand–Hohenberg (WHH)-like shape of Hc2ðT Þ is observed. The Hc2ðT Þ and specific heat data are discussed on a qualitative level in terms of effective singleand multi-band models based on an orbital assignment of the disjoint Fermi su...
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