Results 11 to 20 of about 39,581 (269)

An Abridged Review of Buckling Analysis of Compression Members in Construction

open access: yesBuildings, 2021
The column buckling problem was first investigated by Leonhard Euler in 1757. Since then, numerous efforts have been made to enhance the buckling capacity of slender columns, because of their importance in structural, mechanical, aeronautical, biomedical,
Manmohan Dass Goel   +4 more
doaj   +1 more source

Laminate Ply Stacking Sequence Optimization with Fibers Orientation Imperfections

open access: yesEngineering Transactions, 2015
The paper discusses the fiber orientations imperfections effect on the optimum design of a laminate plate exposed to compressive load. It is assumed that fibers angular imperfection for each design variable cannot exceed maximum allowable deviation from ...
J. Latalski
doaj   +1 more source

Plasma assisted approaches toward high quality transferred synthetic graphene for electronics

open access: yesNano Express, 2023
Graphene has received much attention in multiple fields due to its unique physical and electrical properties, especially in the microelectronic application.
Yibo Wang   +6 more
doaj   +1 more source

Random fields of initial out of straightness leading to column buckling

open access: yesJournal of Civil Engineering and Management, 2017
The elastic load-carrying capacity and buckling trajectory of steel columns under compression with open and hollow cross-sections, whose axis is curved by spatial random fields, are studied in the article. As a result of the spatial curvature of the axis
Zdeněk Kala, Jan Valeš, Jeppe Jönsson
doaj   +1 more source

A Unified Performance Analysis of Cooperative NOMA With Practical Constraints: Hardware Impairment, Imperfect SIC and CSI

open access: yesIEEE Access, 2022
Non-orthogonal multiple access (NOMA) has been a strong candidate to support massive connectivity in future wireless networks. In this regard, its implementation into cooperative relaying, named cooperative-NOMA (CNOMA), has received tremendous attention
Safia Beddiaf   +7 more
doaj   +1 more source

ON THE IMPERFECTIONS OF CRYSTALS [PDF]

open access: yesProceedings of the National Academy of Sciences, 1929
Imperfections of crystals may be either of mechanical or chemical nature. As will appear in the course of this investigation, the phenomena related to the chemical imperfections can hardly be understood without a preliminary knowledge of the mechanical defects of the crystals considered.
openaire   +2 more sources

Perfective – imperfective

open access: yesLinguistic Variation, 2013
Tense morphology has been found to be cross-linguistically vulnerable in specific language impairment (SLI). Research on the development of aspect is rather limited and results are quite inconsistent; some studies suggest that aspect appears intact (Leonard et al. 2003), while others report severe deficits (Fletcher et al. 2005).
Konstantzou, Katerina   +3 more
openaire   +2 more sources

Analysis of load capacity of roof trusses with imperfections and the issue of equivalent load adoption [PDF]

open access: yesActa Scientiarum Polonorum. Architectura, 2021
The internal forces and stresses were analyzed and utilization of the design resistance in selected members of the roof structure with local and global geometrical imperfections was evaluated. Values of these imperfections were based on the information
Grzegorz Gremza, Jan Zamorowski
doaj   +1 more source

Numerical Analysis of the Beam-Column Resistance Compared to Methods by European Standards

open access: yesApplied Sciences, 2021
The optimisation of the design method for verification of slender steel beam-columns is still a current issue not only from scientific point of view, but also for design practice.
Jozef Prokop, Josef Vičan, Jozef Jošt
doaj   +1 more source

Geometrically non-linear finite element reliability analysis of steel plane frames with initial imperfections / Plieninių rėmų su defektais geometriškai netiesinė baigtinių elementų patikimumo analizė

open access: yesJournal of Civil Engineering and Management, 2012
The random load carrying capacity of steel plane frames with bracing stiffness is studied. The load carrying capacity is evaluated using the geometrically non-linear FEM analysis.
Zdeněk Kala
doaj   +1 more source

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