نتایج جستجو برای: shell sections
تعداد نتایج: 143387 فیلتر نتایج به سال:
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...
Steel angle sections are frequently employed in bracing systems or truss structures as single members built-up members. Angles may be coupled back-to-back to create Tee cruciform cross-sections. These sensitive torsional and flexural-torsional buckling due the cross-section shape fact that axial force not applied at shear centre. In this work, a comprehensive numerical investigation of behaviou...
Background: The nucleus $^{32}$Mg ($N=20$ and $Z=12$) plays a central role in the so-called "island of inversion" where ground states $sd$-shell neutrons are promoted to $fp$-shell orbitals across shell gap, resulting disappearance canonical neutron magic number $N=20$. Purpose: primary goals this work extend level scheme $^{32}$Mg, provide spin-parity assignments excited states, discuss micros...
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Measurement of differential production cross sections for Z=γ Ã bosons in association with jets in p ¯ p collisions...
Cellulose nanofibers (CNFs) are of interest as load-bearing components for polymer matrix nanocomposites. A wide range of nanostructured materials including nanopaper/films, foams, aerogels, and hydrogels can be prepared from CNFs. The material performance can be fine-tuned when CNFs are combined with different polymer matrices. The main idea of the present study is to test the hypothesis that ...
The paper discusses the new design of a round pile with relatively smoother surface, developed in an attempt to eliminate excessive negative friction forces. A theoretical study has been conducted into performance asbestos-cement shell exposed off-center loading, which occurs response uneven deformations surrounding soil and seismic loads. cross section upper eccentrically compressed part flexi...
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...
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 ...
Approximately 40% of the mitochondria in the sphincter muscle of the crayfish vas deferens have prismatic-type cristae. In cross section, the angular cristae have either triangular or rhomboid profiles which are surrounded by a hexagonal array of electron-dense dots. In longitudinal section, these mitochondria exhibit both thick and thin parallel lines, which represent cristae and filaments, r...
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