Results 21 to 30 of about 15,792,009 (351)

Apple latent spherical virus structure with stable capsid frame supports quasi-stable protrusions expediting genome release [PDF]

open access: yes, 2020
Picorna-like plant viruses are non-enveloped RNA spherical viruses of ~30 nm. Part of the survival of these viruses depends on their capsid being stable enough to harbour the viral genome and yet malleable enough to allow its release.
ISOGAI, Masamichi   +5 more
core   +1 more source

Shaking table tests on seismic response of rocking frame structure considering foundation uplift

open access: yesYantu gongcheng xuebao, 2021
The separation of structural foundation and foundation soil, namely the foundation uplift, is inevitable in strong earthquakes, so the concept of rocking isolation is gradually proposed.
WANG Guo-bo 1, WANG Yao 1, YU Hai-tao 2, ZHENG Nian-wen 3, SUN Fu-xue 1
doaj   +1 more source

Free-form optimization of a frame structure for strength maximization

open access: yesMechanical Engineering Journal, 2017
In this paper, we present a parameter-free free-form optimization method for the strength design problem of a frame structure. The maximum von Mises stress is minimized under a given volume constraint.
Zhiqiang WU   +3 more
doaj   +1 more source

Seismic Benefits from Coupling Frame Structures with a Hysteretic Mass Damper Inerter

open access: yesApplied Sciences, 2023
The coupling of frame structures with external oscillating bodies, such as rigid walls, dynamic mass absorbers, elastoplastic dampers, or tuned mass dampers, can be effective in reducing the displacements of the structure and protecting it against ...
Angelo Di Egidio, Alessandro Contento
doaj   +1 more source

Structured Frames by Weil Entourages [PDF]

open access: yesApplied Categorical Structures, 2000
Weil's original approach to uniform spaces through entourages of the diagonal and Tukey's via uniform covers are well documented in most books on the subject. On the other hand, in the pointfree context, the study of uniform frames and their generalizations has proceeded through uniform covers. The author of the present paper introduces Weil entourages
openaire   +2 more sources

Framed: An Automl Approach for Structural Performance Prediction of Bicycle Frames

open access: yesSSRN Electronic Journal, 2022
This paper demonstrates how Automated Machine Learning (AutoML) methods can be used as effective surrogate models in engineering design problems. To do so, we consider the challenging problem of structurally-performant bicycle frame design and demonstrate across-the-board dominance by AutoML in regression and classification surrogate modeling tasks. We
Lyle Regenwetter   +2 more
openaire   +2 more sources

Two Degree of Freedom Resonant Structure for Robust Current Control and Active Power Filtering [PDF]

open access: yes, 2005
This paper introduces a novel two degree of freedom resonant control structure for current control in a stationary reference frame in one- or three-phase power electronics systems. The main focus is put on the design of the controller for robust tracking
N. Bajcinca   +3 more
core   +1 more source

Hysteretic Characteristics of Wood-Frame Structures Under Seismic Motions [PDF]

open access: yes, 2009
In order to develop seismic codes that can effectively mitigate damage to wood-frame construction under seismic activity, the dynamic characteristics of wood-frame buildings must be well understood.
Sutoyo, Daniel
core   +1 more source

Stress-oriented structural optimization for frame structures [PDF]

open access: yesGraphical Models, 2017
Abstract To fabricate a virtual shape into the real world, the physical strength of the shape is an important consideration. We introduce a framework to consider both the strength and complexity of 3D frame structures. The key to the framework is a stress-oriented analysis and a semi-continuous condition in the shape representation that can both ...
Shuangming Chai   +6 more
openaire   +2 more sources

ON OPTIMUM DESIGN OF FRAME STRUCTURES

open access: yesActa Polytechnica CTU Proceedings, 2020
Optimization of frame structures is formulated as a non-convex optimization problem, which is currently solved to local optimality. In this contribution, we investigate four optimization approaches: (i) general non-linear optimization, (ii) optimality criteria method, (iii) non-linear semidefinite programming, and (iv) polynomial optimization.
Tyburec, Marek   +3 more
openaire   +5 more sources

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