Results 41 to 50 of about 17,672,271 (335)

Influence of Ground Motion Non-Gaussianity on Seismic Performance of Buildings

open access: yesBuildings
The non-Gaussian feature of seismic ground motion has been reported in some works. However, there remains a lack of research on the influence of the ground motion non-Gaussianity on the seismic performance of buildings, which motivates this study.
Xingliang Ma, Zhen Liu
doaj   +1 more source

Compliant walker [PDF]

open access: yes, 1992
A compliant walker is provided for humans having limited use of their legs and lower back. It includes an upright wheel frame which at least partially surrounds an upright user wearing a partial body harness. It is attached to the frame by means of cable
Crane, J. Allen   +2 more
core   +1 more source

Chameleonic dilaton, nonequivalent frames, and the cosmological constant problem in quantum string theory

open access: yes, 2010
The chameleonic behaviour of the String theory dilaton is suggested. Some of the possible consequences of the chameleonic string dilaton are analyzed in detail. In particular, (1) we suggest a new stringy solution to the cosmological constant problem and
A. D. Sakharov   +14 more
core   +1 more source

Kaluza-Klein bundles and manifolds of exceptional holonomy [PDF]

open access: yes, 2002
We show how in the presence of RR two-form field strength the conditions for preserving supersymmetry on six- and seven-dimensional manifolds lead to certain generalizations of monopole equations.
Alessandro Tomasiello   +12 more
core   +2 more sources

Time after time – circadian clocks through the lens of oscillator theory

open access: yesFEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo   +2 more
wiley   +1 more source

Study on the Influence of a Rubber-Modified Soil Isolation Layer on the Isolation Performance of Frame Structures with Different Foundation Forms

open access: yesBuildings, 2023
In order to investigate the seismic performance of a rubber-modified soil isolation layer, a three-dimensional finite element model was constructed using finite element analysis software, utilizing a two-story frame structure as the engineering ...
Shaoqiang Chai   +5 more
doaj   +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   +3 more sources

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

open access: yesFEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva   +5 more
wiley   +1 more source

Dynamic Response and Anti-Collapse Analysis of Multi-Column Demolition Mode in Frame Structures

open access: yesBuildings
With the improvement of building safety requirements and the need for risk assessment under extreme conditions such as earthquakes, fires, and explosions, research related to the failure of some key components has received more attention in recent years.
Zhenning Wang   +3 more
doaj   +1 more source

SPECIFITIES OF EXPLICATION OF A BASIC COGNITIVE STRATEGY IN THE DISCOURSE SPACE OF GOOD WISHES [PDF]

open access: yesАктуальные проблемы филологии и педагогической лингвистики, 2018
The article is devoted to identifying the specifics of the explication of the basic cognitive strategy in the discursive space of the good wishes of the Karachay-Balkarian language.
Gelayeva Ariuka I.   +2 more
doaj   +1 more source

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