Results 41 to 50 of about 269,665 (298)

Neural Networks—Deflection Prediction of Continuous Beams with GFRP Reinforcement

open access: yesApplied Sciences, 2021
Deflections on continuous beams with glass fiber-reinforced polymer (GFRP) reinforcement are calculated in accordance with the appropriate standards (ACI 440.1R-15, CSA S806-12).
Željka Beljkaš, Nikola Baša
doaj   +1 more source

Discrete diffraction and shape-invariant beams in optical waveguide arrays

open access: yes, 2009
General properties of linear propagation of discretized light in homogeneous and curved waveguide arrays are comprehensively investigated and compared to those of paraxial diffraction in continuous media.
A. E. Siegman   +4 more
core   +1 more source

Continuous-Variable Spatial Entanglement for Bright Optical Beams [PDF]

open access: yes, 2005
A light beam is said to be position squeezed if its position can be determined to an accuracy beyond the standard quantum limit. We identify the position and momentum observables for bright optical beams and show that position and momentum entanglement ...
A. F. Abouraddy   +7 more
core   +3 more sources

Influence of the 6^1S_0-6^3P_1 Resonance on Continuous Lyman-alpha Generation in Mercury

open access: yes, 2012
Continuous coherent radiation in the vacuum-ultraviolet at 122 nm (Lyman-alpha) can be generated using sum-frequency mixing of three fundamental laser beams in mercury vapour.
A. Lago   +34 more
core   +1 more source

Diagonal Tension Cracking Strength and Risk of RC Deep Beams

open access: yesBuildings, 2022
This study focuses on the shear serviceability of simple and continuous reinforced concrete deep beams. The test results of 81 simple deep beams (i.e., simply supported single-span deep beams) and 29 continuous deep beams, for which their diagonal ...
Hui Chen, Wei-Jian Yi, Ke-Jing Zhou
doaj   +1 more source

Experimental Research of Continuous Concrete Beams with GFRP Reinforcement

open access: yesAdvances in Civil Engineering, 2018
Continuous beams are often used within RC structures, which are exposed to aggressive environmental impact. The use of the fiber-reinforced polymer (FRP) reinforcement in these objects and environments has a big significance, taking into account tendency
Nikola Baša   +2 more
doaj   +1 more source

Computational study on shear strengthening of RC continuous beams using CFRP sheet [PDF]

open access: yes, 2011
This research studied the feasibility and effectiveness of a new method of strengthening existing RC continuous beams in shear by using CFRP strips.
Alnatit, Nabil Mohamed Emhdab
core  

Experimental demonstration of continuous variable polarization entanglement [PDF]

open access: yes, 2002
We report the experimental transformation of quadrature entanglement between two optical beams into continuous variable polarization entanglement. We extend the inseparability criterion proposed by Duan, et al.
Bowen, Warwick P.   +3 more
core   +2 more sources

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

Experimental Study on Fire Resistance of Concrete Beams Made with Iron Tailings Sand

open access: yesBuildings, 2022
In order to measure the effect of iron tailings sand replacing natural sand on the fire resistance of concrete beams, five full-scale iron tailings sand concrete (ITSC) beams and two natural sand concrete (NSC) beams were conducted to fire testing under ...
Yunlong Zhou   +6 more
doaj   +1 more source

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