Results 21 to 30 of about 20,421,622 (264)

The effect of material strength on the behaviour of concrete‐filled steel elements

open access: yesJournal of Civil Engineering and Management, 2004
Composite columns and beams are a combination of concrete and steel elements realising the advantages of both types of materials. According to codes for concrete‐filled column, the plastic resistance of the cross‐section is given as a sum of the ...
Janis Brauns, Karlis Rocens
doaj   +1 more source

Analytical Modelling of LACFCST Stub Columns Subjected to Axial Compression

open access: yesMathematics, 2021
This paper presents a numerical investigation of lightweight aggregate concrete-filled circular steel tubular (LACFCST) stub columns under axial compression. A finite 3D solid element model of the LACFCST stub column was established by adopting a plastic-
Yunlong Xu   +4 more
doaj   +1 more source

Space-Time Codes and Concatenated Channel Codes for Wireless Communications [PDF]

open access: yes, 2002
Following a brief historical perspective on channel coding, an introduction to space–time block codes is given. The various space–time codes considered are then concatenated with a range of channel codecs, such as convolutional and block-based turbo ...
Liew, T.H., Hanzo, Lajos
core   +2 more sources

Assessing the Impact of Neighborhood Socioeconomic Characteristics on COVID-19 Prevalence Across Seven States in the United States

open access: yesFrontiers in Public Health, 2020
Introduction: The spread of Coronavirus Disease 2019 (COVID-19) across the United States has highlighted the long-standing nationwide health inequalities with socioeconomically challenged communities experiencing a higher burden of the disease.
Elham Hatef   +4 more
doaj   +1 more source

Behavioral Modelling of Digital Devices Via Composite Local-Linear State-Space Relations [PDF]

open access: yes, 2008
This paper addresses the generation of accurate and efficient behavioral models of digital ICs. The proposed approach is based on the approximation of the device port characteristics by means of composite local linear state-space relations whose ...
Stievano, Igor Simone   +7 more
core   +1 more source

Genetic Algorithm Optimized Structured Dictionary for Discriminative Block Sparse Representation

open access: yesIEEE Access, 2020
This paper presents a few innovations towards learning a discriminative block-structured dictionary. The learning process of such a dictionary is broadly divided into two steps: block formation and dictionary update.
Nagendra Kumar, Rohit Sinha
doaj   +1 more source

Practical design equations of the axial compressive capacity of circular CFST stub columns based on finite element model analysis incorporating constitutive models for high-strength materials

open access: yesCase Studies in Construction Materials, 2022
Step into the 21st century, high strength materials have been increasingly used in engineering practice. However, current design codes for concrete-filled steel tube (CFST) columns have limitations when applied to high strength materials. At the meantime,
Faxing Ding   +5 more
doaj   +1 more source

A Step by Step Methodology for Building Sustainable Cementitious Matrices

open access: yesApplied Sciences, 2020
In an effort to produce cost-effective and environmentally friendly cementitious binders. mainly ternary (Portland cement + limestone + pozzolanas) formulations have been investigated so far.
Styliani Papatzani, Kevin Paine
doaj   +1 more source

psp-codes/reduced-decoy-ensemble: Public Release

open access: yes, 2020
This is the public release of the codes for the project detailed in the manuscript titled "Reducing Ensembles of Protein Tertiary Structures Generated De Novo via Clustering".
psp-codes
core   +1 more source

Performance of thermally modified wood strands and thin veneers for use in durable mass timber panels

open access: yesCase Studies in Construction Materials
The innovative structural composite material, proposed in this study, offers an opportunity to repurpose low-value, small-diameter trees by adopting strand-based technology into their production.
Rajan Adhikari   +6 more
doaj   +1 more source

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