Results 81 to 90 of about 234,218 (345)

Site specific design response spectrum proposed for the capital city of Agartala, Tripura

open access: yesGeomatics, Natural Hazards & Risk, 2016
The design response spectrum is smooth in shape compared to other response spectra. The objective of design spectra is to estimate the possible earthquake lateral loads which may experience on a particular structure during its design life. In this study,
Arjun Sil, TG Sitharam
doaj   +1 more source

X-ray and TeV emissions from High Frequency Peaked BL Lacs

open access: yes, 2011
The majority of the extragalactic sources yet detected at TeV photon energies belong to the class of "high frequency peaked BL Lacs" (HBLs) that exhibit a spectral energy distribution with a lower peak in the X-ray band.
Cavaliere, A., Massaro, F., Paggi, A.
core   +1 more source

Accelerate 3D Object Processing via Spectral Layout

open access: yes, 2021
3D image processing is an important problem in computer vision and pattern recognition fields. Compared with 2D image processing, its computation difficulty and cost are much higher due to the extra dimension. To fundamentally address this problem, we propose to embed the essential information in a 3D object into 2D space via spectral layout ...
openaire   +2 more sources

Pathogenic Neurofibromatosis type 1 gene variants in tumors of non‐NF1 patients and role of R1276

open access: yesFEBS Open Bio, EarlyView.
Somatic variants of the neurofibromatosis type 1 (NF1) gene occur across neoplasms without clinical manifestation of the disease NF1. We identified emerging somatic pathogenic NF1 variants and hotspots, for example, at the arginine finger 1276. Those missense variants provide fundamental information about neurofibromin's role in cancer.
Mareike Selig   +7 more
wiley   +1 more source

Spectral Evolution of Two High-Energy Gamma-Ray Bursts

open access: yes, 2004
The prompt emission of the gamma-ray bursts is found to be very energetic, releasing ~10^51 ergs in a flash. However, their emission mechanism remains unclear and understanding their spectra is a key to determining the emission mechanism.
Briggs, M. S.   +4 more
core   +1 more source

Sensitivity of Building Loss Estimates to Major Uncertain Variables [PDF]

open access: yes, 2002
This paper examines the question of which sources of uncertainty most strongly affect the repair cost of a building in a future earthquake. Uncertainties examined here include spectral acceleration, ground-motion details, mass, damping, structural force ...
Beck, James L.   +2 more
core   +1 more source

GPU accelerated computation of fast spectral transforms

open access: yesFacta universitatis - series: Electronics and Energetics, 2011
This paper discusses techniques for accelerated computation of several fast spectral transforms on graphics processing units (GPUs) using the Open Computing Language (OpenCL). We present a reformulation of fast algorithms which takes into account peculiar properties of transforms to make them suitable for the GPU implementation.
Dusan Gajic, Radomir Stankovic
openaire   +1 more source

Average-case Acceleration Through Spectral Density Estimation

open access: yes, 2020
We develop a framework for the average-case analysis of random quadratic problems and derive algorithms that are optimal under this analysis. This yields a new class of methods that achieve acceleration given a model of the Hessian's eigenvalue distribution. We develop explicit algorithms for the uniform, Marchenko-Pastur, and exponential distributions.
Pedregosa, Fabian, Scieur, Damien
openaire   +2 more sources

The Aging Blood: Cellular Origins, Circulating Drivers, and Therapeutic Potential

open access: yesAging and Cancer, EarlyView.
As a conduit linking all organs, the blood system both reflects and actively drives systemic aging. This review highlights how circulating pro‐aging and antiaging factors and age‐associated hematopoietic stem cell dysfunction contribute to immunosenescence and multi‐organ decline, positioning the hematopoietic system as a target for aging intervention.
Hanqing He, Jianwei Wang
wiley   +1 more source

基于KiK-net强震动记录的加速度反应谱规律性偏差

open access: yesDizhen xuebao
地震动特性受到地震震源、地震波传播介质和局部场地条件等因素的综合影响,虽然地震动反应谱虽然具有统计意义上的共性,但其具体形状又各不相同,特别是部分加速度反应谱与统计平均值之间存在显著的规律性偏差。为了进一步探究加速度反应谱与统计平均值之间的规律性偏差,本文基于日本KiK-net台网获取的8万余条强震动记录,建立了考虑地震震级和震中距影响的地面峰值加速度归一化加速度反应谱,并以预测值+0.5倍方差为界将加速度反应谱分为有、无反应谱规律性偏差的两组。通过有反应谱规律性偏差的反应谱(观测值 ...
Mingming Yuan, Xiaojun Li, Yushi Wang
doaj   +1 more source

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