Results 31 to 40 of about 1,279 (277)
Buildings, 2022 To enhance the local buckling resistance of thin-walled steel pipes and enhance their fire and corrosion resistance, a new spirally stiffened thin-walled square concrete-filled steel tubular laminated composite member with transverse ribs is proposed ...
Zhenshan Wang +4 more
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On the existence of a weak solution of the boundary value problem for the equilibrium of a shallow shell reinforced with stiffening ribs [PDF]
, 1978 summary:The existence and the unicity of a weak solution of the boundary value problem for a shallow shell reinforced with stiffening ribs is proved by the direct variational method.
Lovíšek, Ján, Bock, Igor
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Vibrations of Rib-Stiffened Circular and Elliptical Plates [PDF]
The Journal of the Acoustical Society of America, 1968 This investigation deals with the determination of the fundamental frequency of vibration of simply supported and clamped rib-stiffened plates of elliptical boundary. It is assumed that the stiffeners are closely spaced and their height is moderate when compared with the thickness of the plate.
F. W. Desiderati, P. A. Laura
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Operator of thin plate reinforced with thin-walled ribs [PDF]
, 1973 summary:In the paper the solution of a thin plate reinforced with stiffening ribs is defined. A differential operator $\tilde{\Delta}^2$ (operator of a thin plate reinforced with thin-walled ribs) is introduced.
Lovíšek, Ján
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Nanographene‐Based van der Waals Organic Framework With Permanent Porosity
Angewandte Chemie, EarlyView.Unlocking record‐breaking porosity in a supramolecular organic framework (SOF). Through the strategic design of a C3‐symmetric nanographene, a robust supramolecular framework is achieved via exclusively weak van der Waals forces. This metal‐free scaffold reaches a benchmark BET surface area of 1108 m2 g−1 –the highest to date for this class–combining ...
Arturo Oró +5 more
wiley +2 more sources
The stress-strain state of ribbed shell structures
Инженерно-строительный журнал, 2017 The paper presents an analysis of the stress-strain state of shallow shell structures of double curvature, reinforced from the concave side by a various number of stiffeners.
Vladimir Karpov +2 more
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Angewandte Chemie, EarlyView.π‐Extended COUPY dyes, obtained by vinylogation of coumarin‐based COUPY scaffolds, shift absorption, and emission deep into the NIR region while preserving compactness and synthetic accessibility. These bright, photostable dyes enable live‐cell imaging, FLIM, and site‐specific peptide conjugation, offering a modular platform for targeted bioimaging and
Diego Abad‐Montero +11 more
wiley +2 more sources
Buckling Load Reduction for Stiffened Panels Due to Cutouts in Ribs [PDF]
AIAA Journal, 1998 In aerospace structures it is common to find stiffened panels with transverse supporting structures, e.g. wing ribs or fuselage frames. Incorporating cutouts into these supporting structures to allow the stringers to pass through freely considerably reduces the buckling load of the panels. It is shown that a minor modification in the fabrication of the
Watson, Andrew +2 more
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Доповiдi Нацiональної академiї наук України, 2019 The method of spline collocation, in contrast to the use of double trigonometric series for the approximation of the displacements of points of the middle surface of a shell, allows us to significantly expand the class of applied problems and, in some ...
P.Z. Lugovyy +2 more
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Advanced Materials, EarlyView.This review highlights the role of self‐assembled monolayers (SAMs) in perovskite solar cells, covering molecular engineering, multifunctional interface regulation, machine learning (ML) accelerated discovery, advanced device architectures, and pathways toward scalable fabrication and commercialization for high‐efficiency and stable single‐junction and
Asmat Ullah, Ying Luo, Stefaan De Wolf
wiley +1 more source