نتایج جستجو برای: strain inhomogeneity

تعداد نتایج: 223821  

Journal: :International Journal of Solids and Structures 2022

A large number of conventional mechanical tests are required to calibrate advanced anisotropic yield functions. well-designed non-conventional test generating information-rich inhomogeneous strain fields enables reduce the experimental effort via inverse identification methods. Gradient-based methods have repeatedly been reported non-unique solutions for Although generic design progressively im...

2014
Antonio Enea Romano Pisin Chen

We calculate the low-redshift Taylor expansion for the luminosity distance for an observer at the center of a spherically symmetric matter inhomogeneity with a nonvanishing cosmological constant. We then test the accuracy of the formulas comparing them to the numerical calculation for different cases for both the luminosity distance and the radial coordinate. The formulas can be used as a start...

2014
H. Puszkarski P. Tomczak

The source of spin-wave resonance (SWR) in thin films of the ferromagnetic semiconductor (Ga,Mn)As is still under debate: does SWR stem from the surface anisotropy (in which case the surface inhomogeneity (SI) model would apply), or does it originate in the bulk inhomogeneity of the magnetic structure of the sample (and thus requires the use of the volume inhomogeneity (VI) model)? This paper o...

Journal: :Journal of Composite Materials 2021

Designing highly stressed offshore renewable energy composite structures (e.g. wind and tidal turbine blades) necessitates characterisation of woven fabric under off axial loading. In this work a combined method finite element analysis, digital image correlation microscopy is used to assess the effect ply orientation on tensile/shear properties failure modes glass fibre reinforced polymer compo...

2007
Maite García-Sebastián Manuel Graña

Given an appropriate imaging resolution, a common Magnetic Resonance Imaging (MRI) model assumes that object under study is composed of piecewise constant materials, so that MRI produces piecewise constant images. The intensity inhomogeneity (IIH) is modeled by a multiplicative inhomogeneity field. It is due to the spatial inhomogeneity in the excitatory Radio Frequency (RF) signal and other ef...

2012
D. S. L. Abergel E. Rossi S. Das Sarma

We demonstrate that for gapped bilayer graphene, the nonlinear nature of the screening of an external disorder potential and the resulting inhomogeneity of the electron liquid are crucial for describing the electronic compressibility. In particular, traditional diagrammatic methods of many-body theory do not include this inhomogeneity and therefore fail to reproduce experimental data accurately...

1988
O. A. CHUBYKALO

The interaction of a fluxon with a finite-size inhomogeneity in a long Josephson junction is studied within the framework of the perturbation theory for solitons. The threshold values of the bias current density either for capture of the fluxon or for its escape on the inhomogeneity are calculated. Induced by the resonant fluxon emission hystereses on the first zero-field step of the Josephson ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده کشاورزی 1392

قرن هاست که از تخمیر برای حفاظت، بهبود کیفیت و یا اصلاح عطر و طعم حبوبات، میوه ها، سبزی ها، شیر و گوشت استفاده می شود. تاریخچه ترشی و شوری در ایران به زمان قوم ماد بر می گردد، در حالی که از عمر تولید صنعتی ترشی و شوری در ایران تنها70 سال می گذرد. سالاد زمستانه در واقع نوعی شوری تهیه شده از سبزی های مختلف است که در ایران و بخصوص در خراسان مصرف می شود. هدف از این پژوهش بررسی اثر سطوح مختلف شلغم ف...

Journal: :Isij International 2022

In this study, the strain distribution in grains with a preferred orientation cold-rolled steel plate was investigated. This done by measuring amount of region material using nanoscale fine markers applied focused ion beam (FIB). We obtained crystal orientations and distributions same scanning electron microscopy-electron backscatter diffraction made FIB during rolling to 60% 70% thickness redu...

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