Results 31 to 40 of about 17,672,271 (335)

Application of layout optimization technique to large-scale frame structures considering cross-sectional areas of frame members

open access: yesNihon Kikai Gakkai ronbunshu, 2019
To design economical frame structures, it is necessary to determine the optimum frame layout and optimum cross-sectional area of each frame member. Although previous studies have proposed a variety of optimization methods, they can be applicable to small-
Eiji MURAKAMI   +3 more
doaj   +1 more source

Frame Structure Design and Analysis for Millimeter Wave Cellular Systems

open access: yes, 2016
The millimeter-wave (mmWave) frequencies have attracted considerable attention for fifth generation (5G) cellular communication as they offer orders of magnitude greater bandwidth than current cellular systems.
Dutta, Sourjya   +5 more
core   +1 more source

The effect of masonry infill walls on the reinforced concrete frames behavior under lateral load [PDF]

open access: yes, 2020
The reinforced concrete structures with masonry infill walls are widely used to construct buildings in Algeria, as in many parts of the world. According to earthquake analysis, this type of construction can undergo serious damage under seismic load.
LAYADI, Ismail   +3 more
core  

Electron localization and a confined electron gas in nanoporous inorganic electrides [PDF]

open access: yes, 2003
The nanoporous main group oxide 12CaO.7Al(2)O(3) (C12A7) can be transformed from a wide-gap insulator to an electride where electrons substitute anions in cages constituting a positive frame. Our ab initio calculations of the electronic structure of this
Hayashi, K   +4 more
core   +1 more source

On perturbations of highly connected dyadic matroids [PDF]

open access: yes, 2018
Geelen, Gerards, and Whittle [3] announced the following result: let $q = p^k$ be a prime power, and let $\mathcal{M}$ be a proper minor-closed class of $\mathrm{GF}(q)$-representable matroids, which does not contain $\mathrm{PG}(r-1,p)$ for sufficiently
Grace, Kevin, van Zwam, Stefan H. M.
core   +3 more sources

Multidimensional vibration reduction control of the frame structure with magnetorheological damper

open access: yesStructural Control & Health Monitoring, 2020
To analyze the multidimensional vibration reduction performance and torsional vibration characteristics of frame structures with magnetorheological damper (MRD), the space models of the reinforced concrete (RC) frame structure with and without MRD, based
Jun Zhao   +4 more
semanticscholar   +1 more source

Conformal aspects of Palatini approach in Extended Theories of Gravity

open access: yes, 2004
The debate on the physical relevance of conformal transformations can be faced by taking the Palatini approach into account to gravitational theories. We show that conformal transformations are not only a mathematical tool to disentangle gravitational ...
A. Guth   +50 more
core   +1 more source

Seismic Response of Prestressed Anchors with Frame Structure

open access: yes, 2020
Based on the equivalent mass-spring model and considering the coupling effect between creep soil and prestressed anchors, the dynamic calculation model of prestressed anchors with frame structure is established.
Shuaihua Ye, Zhuangfu Zhao
semanticscholar   +1 more source

MECHANICAL DAMPING SYSTEM FOR STRUCTURES [PDF]

open access: yes, 2005
A mechanical damping system for a structure is provided. The mechanical damping system comprises a tubular impact frame secured to the structure. A support frame is secured to the structure with the support frame spaced from the impact frame.
Hamilton, Homer R., III   +2 more
core   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

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