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61.
Yavuz Abdulcabbar Kaplan Kaan Bedir Metin 《Journal of Solid State Electrochemistry》2022,26(6):1333-1347
Journal of Solid State Electrochemistry - The motivation of this study is to understand the usability of annealed stainless steel mesh obtained by a straightforward method for energy storage... 相似文献
62.
Hasan Tanak Yavuz Köysal Yasemin Ünver Metin Yavuz Şamil Işık Kemal Sancak 《Structural chemistry》2009,20(3):409-416
The Imidazole compound, Ethyl N′-3-(1H-imidazol-1-yl) propylcarbamoyl benzohydrazonate monohydrate, has been synthesized and
characterized by IR, NMR, electronic spectroscopy, and X-ray single-crystal determination. Molecular geometry from X-ray experiment
of the title compound in the ground state has been compared using the density functional method (B3LYP) with 6-31G+(d) basis
set. To determine conformational flexibility, molecular energy profile of the title compound was obtained by DFT calculations
with respect to two selected degrees of torsional freedom, which were varied from −180° to +180° in steps of 10°. Besides,
molecular electrostatic potential (MEP), natural bond orbitals (NBO), frontier molecular orbitals (FMO), and thermodynamic
properties were performed at B3LYP/6-31G+(d) level of theory. 相似文献
63.
Yavuz Altin 《数学物理学报(B辑英文版)》2009,29(2):427-434
In this article, the author introduces the generalized difference paranormed sequence spaces c (△v^m, f, p, q, s), c0 (△v^m, f, p, q, s), and l∞ (△v^m, f, p, q, s) defined over a seminormed sequence space (X, q). The author also studies their properties like completeness, solidity, symmetricitv, etc. 相似文献
64.
Tuncer Hkelek Süleyman Patr Yavuz Ergün Gürol Okay 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(4):414-416
The title compound, C14H11NO2, consists of a carbazole skeleton with carboxylic acid and methyl groups at positions 3 and 4, respectively. Molecules are linked about inversion centres by O—H?O hydrogen bonds [O?O 2.620 (3) Å] to form centrosymmetric dimers. 相似文献
65.
In this study, electrorheological behavior of suspensions prepared from 0.9 and 5.0 µm calcium carbonate particulates, dispersed in insulating silicone oil medium was investigated. Sedimentation stabilities of suspensions (c = 5 wt %) prepared using these calcium carbonate powders were determined to be 6 and 4 days, respectively. Electrorheological activity of all the suspensions was observed to increase with increasing electric field strength, concentration and decreasing shear rate. Shear stress of calcium carbonate suspensions increased linearly with increasing concentrations of the particles and with the applied electric field strength. Electric field viscosity of all the suspensions was decreased sharply with increasing shear rate and particle size, showing a typical shear thinning non-Newtonian visco-elastic behavior. Effects of elevated temperature and polar promoter onto electrorheological activity of calcium carbonate/silicone oil system were also investigated.__________From Kolloidnyi Zhurnal, Vol. 67, No. 2, 2005, pp. 268–273.Original English Text Copyright © 2005 by Yilmaz, Ünal, Yavuz.This article was submitted by the authors in English. 相似文献
66.
In this paper we define the sequence space ℓ
M
(Δ
m
, p, q, s) on a seminormed complex linear space by using an Orlicz function. We study its different algebraic and topological properties
like solidness, symmetricity, monotonicity, convergence free etc. We prove some inclusion relations involving ℓ
M
(Δ
m
, p, q, s).
相似文献
67.
A threshold start-up policy is appealing for manufacturing (service) facilities that incur a cost for keeping the machine
(server) on, as well as for each restart of the server from its dormant state. Analysis of single product (customer) systems
operating under such a policy, also known as the N-policy, has been available for some time. This article develops mathematical analysis for multiproduct systems operating
under a cyclic exhaustive or globally gated service regime and a threshold start-up rule. It pays particular attention to
modeling switchover (setup) times. The analysis extends/unifies existing literature on polling models by obtaining as special
cases, the continuously roving server and patient server polling models on the one hand, and the standard M/G/1 queue with N-policy, on the other hand. We provide a computationally efficient algorithm for finding aggregate performance measures, such
as the mean waiting time for each customer type and the mean unfinished work in system. We show that the search for the optimal
threshold level can be restricted to a finite set of possibilities.
This revised version was published online in June 2006 with corrections to the Cover Date. 相似文献
68.
This study describes the application of the electrochemically generated molybdenum‐based catalyst system MoCl5? e?? Al? CH2Cl2 to ring‐opening metathesis polymerization of bicyclo[2.2.1]hept‐2‐ene (norbornene). The results are compared with those previously obtained by the WCl6? e?? Al? CH2Cl2 system. The polymer product has been characterized by 1H and 13C NMR, IR and gel‐permeation chromatography techniques. This molybdenum‐based catalyst system has led to a mainly trans stereoconfiguration (ca 60%) of the double bonds, in contrast to the polymer obtained with the tungsten‐based analogue, where the cis content is 60%. Analysis of the poly(1,3‐cyclopentylenevinylene) microstructure by 13C NMR spectroscopy revealed that the polymer having σc = 0.41 (fraction of double bonds with cis configuration) contains a slightly blocky distribution (rtrc > 1) of the double‐bond dyads (rtrc = 1.44). In addition, the influence of reaction parameters, e.g. reaction time, electrolysis time and catalyst aging time, on conversion has been analysed in detail. Copyright © 2005 John Wiley & Sons, Ltd. 相似文献
69.
Microstructure and optical properties of nanocrystalline ZnO and ZnO:(Li or Al) thin films 总被引:1,自引:0,他引:1
Zinc oxide thin films (ZnO, ZnO:Li, ZnO:Al) were deposited on glass substrates by a sol-gel technique. Zinc acetate, lithium acetate, and aluminum chloride were used as metal ion sources in the precursor solutions. XRD analysis revealed that Li doped and undoped ZnO films formed single phase zincite structure in contrast to Al:ZnO films which did not fully crystallize at the annealing temperature of 550 °C. Crystallized films had a grain size under 50 nm and showed c-axis grain orientation. All films had a very smooth surface with RMS surface roughness values between 0.23 and 0.35 nm. Surface roughness and optical band tail values increased by Al doping. Compared to undoped ZnO films, Li doping slightly increased the optical band gap of the films. 相似文献
70.
In this Letter, we present the homotopy perturbation method (shortly HPM) for obtaining the numerical solution of the RLW equation. We obtain the exact and numerical solutions of the Regularized Long Wave (RLW) equation for certain initial condition. The initial approximation can be freely chosen with possible unknown constants which can be determined by imposing the boundary and initial conditions. Comparison of the results with those of other methods have led us to significant consequences. The numerical solutions are compared with the known analytical solutions. 相似文献