Results 21 to 30 of about 147,764 (264)

ABOUT METHOD FOR CONTINUOUS BEAM ACCOUNT

open access: yesНаука и техника, 2006
The paper considers in detail a calculation of a multispan continuous beam using two methods: work method and method of three-moment equations. As a result of comparison and detailed analysis of these methods it has been exhibited that the calculation ...
A. Ch. Yakubovsky, Ch. A. Yakubovsky
doaj   +1 more source

Buckling of Continuously Supported Beams [PDF]

open access: yesJournal of Applied Mechanics, 1973
The buckling of infinite beams continuously supported by a semi-infinite elastic continuum is investigated. The buckling loads were determined when the beam rests on a two-dimensional elastic continuum and also when the foundation extends beyond the width of the beam.
openaire   +2 more sources

Lateral-distortional buckling of continuous steel-concrete composite beam

open access: yesRevista IBRACON de Estruturas e Materiais, 2018
In hogging bending moment regions of continuous composite beams the collapse by lateral-distortional buckling (LDB) can occur. The design against LDB according to ABNT NBR 8800:2008 begins with the determination of the elastic critical moment, which ...
T. V. AMARAL   +3 more
doaj   +2 more sources

Experimental Study on Flexural Performance of the Prestressed Glulam Continuous Beam after Long-Term Loading

open access: yesBuildings, 2022
The study of the long-term behavior of the prestressed continuous beam is vital for the design and the appliance of wood structures in engineering.
Nan Guo   +3 more
doaj   +1 more source

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

Liquid Crystal Beam Steering Devices: Principles, Recent Advances, and Future Developments

open access: yesCrystals, 2019
Continuous, wide field-of-view, high-efficiency, and fast-response beam steering devices are desirable in a plethora of applications. Liquid crystals (LCs)—soft, bi-refringent, and self-assembled materials which respond to various external stimuli&#
Ziqian He   +5 more
doaj   +1 more source

Prediction of Nonlinear Flexural Behavior of Continuous RC Beams Pre-Damaged by Corrosion

open access: yesBuildings, 2023
Numerical simulation models capable of predicting the nonlinear flexural behavior of continuous reinforced concrete (RC) beams with corroded reinforcement were developed. Laboratory tests were conducted to validate predictions of the numerical models.
Youssef Elmezayen   +2 more
doaj   +1 more source

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

STED microscopy with continuous wave beams [PDF]

open access: yesNature Methods, 2007
We report stimulated emission depletion (STED) fluorescence microscopy with continuous wave (CW) laser beams. Lateral fluorescence confinement from the scanning focal spot delivered a resolution of 29-60 nm in the focal plane, corresponding to a 5-8-fold improvement over the diffraction barrier.
Willig, Katrin   +3 more
openaire   +5 more sources

Mycobacterial cell division arrest and smooth‐to‐rough envelope transition using CRISPRi‐mediated genetic repression systems

open access: yesFEBS Open Bio, EarlyView.
CRISPRI‐mediated gene silencing and phenotypic exploration in nontuberculous mycobacteria. In this Research Protocol, we describe approaches to control, monitor, and quantitatively assess CRISPRI‐mediated gene silencing in M. smegmatis and M. abscessus model organisms.
Vanessa Point   +7 more
wiley   +1 more source

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