Results 51 to 60 of about 50,371 (314)

Numerical Study on the Axial Compression Behavior of Composite Columns with High-Strength Concrete-Filled Steel Tube and Honeycombed Steel Web Subjected to Freeze–Thaw Cycles

open access: yesBuildings
To investigate the axial compression behavior of composite columns with high-strength concrete-filled steel tube flanges and honeycombed steel web (STHHC) under load during freeze–thaw cycles, 48 full-scale composite column specimens were designed with ...
Jing Ji   +9 more
doaj   +1 more source

Post-peak Behaviour of Composite Column Using a Ductile Lightweight Aggregate Concrete

open access: yesInternational Journal of Concrete Structures and Materials, 2021
Oil palm shell (OPS) concrete filled steel tube (CFT) columns are acknowledged to be a new type of sustainable composite column. In this type of column, the conventional coarse aggregate was partially replaced with OPS lightweight aggregate to provide a ...
Mohammad Reza Hamidian, Payam Shafigh
doaj   +1 more source

Optimum design of steel columns filled with concrete via genetic algorithm: environmental impact and cost analysis

open access: yesREM: International Engineering Journal, 2022
The use of concrete-filled tubular columns as part of structural systems has steadily increased throughout the years. The growing demand for structural elements of this nature is a direct result of the possibility to use various cross-section shapes that
Sane Alves Guimarães   +3 more
doaj   +1 more source

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

open access: yesFEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

open access: yesFEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto   +3 more
wiley   +1 more source

Behaviour of semi-rigid composite connections for steel framed buildings [PDF]

open access: yes, 2009
During propped construction the steel-concrete composite action resists dead as well as imposed loads. Conversely, the steel section alone resists the floor self-weight in unpropped beams.
Muniasamy, D.
core  

Modulation of Homer1 EVH1 domain internal dynamics by putative autism‐associated mutations

open access: yesFEBS Letters, EarlyView.
The putative autism‐associated M65I and S97L variants of the EVH1 domain of the postsynaptic scaffold protein Homer1 do not exhibit substantial changes in their overall structure or partner binding. Both of them, but especially the M65I variant, show altered internal dynamics relative to the wild‐type domain on the μs‐ms timescale, indicated by the ...
Fanni Farkas   +6 more
wiley   +1 more source

Simplified numerical modelling of rectangular concrete-filled steel columns, beams and beam-columns [PDF]

open access: yes, 2018
[EN] Because of its computational efficiency, simplified numerical modelling is the preferred method to simulate structural frames for routine design. As for concrete-filled steel tubular (CFST) columns, fibre beam element (FBE) modelling is often used ...
Hassan, Kamrul   +11 more
core   +1 more source

Study on Seismic Performance of Composite Structures with Reinforced Concrete Columns and Masonry Walls

open access: yesBuildings
While incorporating constructional columns into masonry walls enhances structural integrity, their seismic bearing capacity remains relatively low. In contrast, composite structures formed through the integration of large-section concrete columns with ...
Xisen Fan   +3 more
doaj   +1 more source

Review of design codes of concrete encased steel short columns under axial compression

open access: yesHBRC Journal, 2013
In recent years, the use of encased steel concrete columns has been increased significantly in medium-rise or high-rise buildings. The aim of the present investigation is to assess experimentally the current methods and codes for evaluating the ultimate ...
K.Z. Soliman   +2 more
doaj   +1 more source

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