Results 41 to 50 of about 12,885 (226)
Enhancement of shear strength of bonded post-tensioned beams using inverted-U shaped reinforcements
Case Studies in Construction Materials, 2020 At cracked stage, the post-tensioned concrete beams resist shear through a different set of mechanisms, the accepted mechanisms are: interface shear transfer, dowel action of longitudinal reinforcements, shear transfer in compression zone, transversal ...
Milad Khatib, Zaher Abou Saleh
doaj +1 more source
International Journal for Computational Civil and Structural Engineering, 2021 The developed design diagram of the ultimate resistance of reinforced concrete structures in bending with torsion of circular cross-sections most fully reflects the features of their actual exploitation.
Vladimir Kolchunov, Sergey Bulkin
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Terahertz All‐Dielectric Maxwell Fisheye Lens Waveguide Crossings via Transformation Optics
Laser &Photonics Reviews, EarlyView.All‐silicon terahertz waveguide crossings based on Maxwell fisheye lenses are reshaped using transformation optics to interface with planar waveguides while reducing mode mismatch. Realized via subwavelength perforations in a single etching step, 2 × 2 and 3 × 3 crossings achieve broadband transmission with low loss and ultralow crosstalk across 220 ...
Nikolaos Xenidis +2 more
wiley +1 more source
NONLINEAR FINITE ELEMENT ANALYSIS OF COMPOSITE CONCRETE BEAMS
Journal of EngineeringTo study the nonlinear response of composite concrete beams, a finite element analysis is presented. Material nonlinearities as a result of nonlinear response of concrete in compression, crushing and cracking of concrete, strain softening and stiffening
Khalid S. Mahmoud +1 more
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Budownictwo i Architektura, 2020 The paper presents a comparative analysis of the behaviour of a composite beam, consisted of a precast element with indented surface and new concrete layer, subjected to 4-point bending.
Grzegorz Sadowski +2 more
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Optical communications system Patent [PDF]
, 1969 Specifications and drawings for semipassive optical communication ...
Thomas, N. E.
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A simple, low-cost, data-logging pendulum built from a computer mouse
, 2009 Lessons and homework problems involving a pendulum are often a big part of introductory physics classes and laboratory courses from high school to undergraduate levels.
Gintautas, Vadas, Hubler, Alfred
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A precision two crystal x-ray spectrometer of wide applicability with worm wheel drive; An improved precise method of equalizing the spacing of worm wheel teeth [PDF]
, 1937 This article describes the design and construction of a two crystal x‐ray spectrometer for the study of radiation of wave‐length from (but not including) the vacuum region to about 100 X.U.
DuMond, Jesse W. M., Marlow, Douglas
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International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT An experimental campaign was undertaken to demonstrate the applicability of the Bouc–Wen hysteretic model to describe the hysteretic system of the recent Framatome dimple‐less spacer grid design for Pressurized Water Reactors. The experimental setup subjected a reduced‐length fuel rod, supported at both ends by dimple‐less grids, to forced ...
Giovanni Ferrari +3 more
wiley +1 more source
Rehabilitation of orthotropic steel deck bridges using a modified Ortho-composite deck system
Results in EngineeringOrthotropic Steel Deck (OSD) systems have been widely utilized in bridge construction globally, owing to their numerous advantages, notably their high load-bearing capacity and relatively low dead weight.
Mozhdeh Shirinzadeh
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