نتایج جستجو برای: shell splitting

تعداد نتایج: 87808  

Consider the linear system Ax=b where the coefficient matrix A is an M-matrix. In the present work, it is proved that the rate of convergence of the Gauss-Seidel method is faster than the mixed-type splitting and AOR (SOR) iterative methods for solving M-matrix linear systems. Furthermore, we improve the rate of convergence of the mixed-type splitting iterative method by applying a preconditio...

1999
M. Payami

In the framework of spherical geometry for jellium and local spin density approximation, we have obtained the equilibrium rs values, r̄s(N, ζ), of neutral and singly ionized “generic” N -electron clusters for their various spin polarizations, ζ. Our results reveal that r̄s(N, ζ) as a function of ζ behaves differently depending on whether N corresponds to a closed-shell or an openshell cluster. Th...

Journal: :Nano Energy 2022

A dual-bandgap photoelectrochemical (PEC) cell with two semiconductors stacked in tandem is a widely adopted concept to capture large fraction of the solar spectrum for water splitting. While photons are theoretically needed produce one H2 molecule using single-bandgap PEC cells, four generally required cells because an unavoidable charge recombination at solid-solid interface. Here, triboelect...

Journal: :Physica Status Solidi (rrl) 2022

In the recent decades, semiconductor quantum dots (QDs) have proven to be valuable candidates as sources for various photonic applications. Of particular interest are, due their wide-ranging applicability in communication and computation, indistinguishable photons well entangled photon pairs, which can emitted on demand. The latter require highly symmetric QDs with a small vanishing excitonic f...

Journal: :Journal of High Energy Physics 2022

The rapidity anomalous dimension controls the scaling of transverse momentum dependent observables in Sudakov region. In a conformal theory it is equivalent to soft dimension, but QCD this relation broken by terms proportional $\beta$-function. paper we first give simple proof using two different representations energy-energy correlator observable. We then calculate three loops computing three-...

Journal: :journal of agricultural science and technology 2010
j. pourreza n. nili m. a. edriss

this experiment was carried out to study the effect of sodium chloride from drinking water and feed intake on the quality of egs from laying hens. four hundred and twenty native and white leghorn laying hens ranging from 36 to 43 weeks of age were used. seven experimental treatments containing different levels of salt supplied by feed and/or drinking water were compared. increasing salt int...

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

در این رساله، ما ثابت جفت شدگی رأس مزونی ds0dk را با استفاده از قانون جمعqcd سه-نقطه، برای دو حالت d و k off-shell، بدست می آوریم. مزون ds0 پهنای واپاشی کمی دارد. پهنای کم این مزون تعجب آور نیست، زیرا جرم آن کمتر از جرم آستانه سیستم dk می باشد. داشتن ثابت جفت شدگی رأس ds0dk ، مهم است، به این دلیل که پهنای واپاشی در این کانال،که مهمترین کانال است، می تواند پهنای کلی حالت را به ما بدهد. بنابراین ...

Journal: :Energies 2021

Electrochemical water splitting is considered a promising way of producing hydrogen and oxygen for various electrochemical energy devices. An efficient single, bi-functional electrocatalyst that can perform evolution reactions (HERs) (OERs) highly essential. In this work, Co@NC core-shell nanoparticles were synthesized via simple, eco-friendly, solid-state synthesis process, using cobalt nitrat...

Journal: :Carbon energy 2022

Transition-metal phosphides (TMPs) with high catalytic activity are widely used in the design of electrodes for water splitting. However, a major challenge is how to achieve trade-off between and stability TMPs. Herein, novel method synthesizing CoP nanoparticles encapsulated rich-defect carbon shell (CoP/DCS) developed through self-assembly modified polycyclic aromatic molecules. The graft rem...

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