Results 61 to 70 of about 20,823 (293)

Stainless steel plate girders subjected to shear buckling at normal and elevated temperatures [PDF]

open access: yes, 2017
The final publication is available at Springer via http://dx.doi.org/10.1007/s10694-016-0602-6Numerical simulations have been widely applied, for the determination of the resistance of steel structural elements, when experimental analysis are not ...
Lopes, Nuno   +3 more
core   +2 more sources

Nanodiamond‐Based Quantum Sensing Reveals Changes in Endo‐Lysosomal Activity of Stimulated Cardiac Fibroblasts in a Cellular Fibrosis Model

open access: yesAdvanced Functional Materials, EarlyView.
Quantum sensing reveals intricate patterns linking endo‐lysosomal maturation to cardiac fibrosis progression, highlighting complexity in cellular remodeling. This study investigates fibroblast‐to‐myofibroblast transition under cell aging, stiffness, and TGF‐β stimulation, comparing nanodiamond uptake, endo‐lysosomal dynamics, and free radical ...
Aldona Mzyk   +3 more
wiley   +1 more source

Nonlinear buckling behavior of FG-GPLRC cylindrical shell stiffened by spiral FG-GPLRC stiffeners subjected to axial compressive load in thermal environment

open access: yesVietnam Journal of Mechanics
This study investigates the nonlinear behavior of functionally graded graphene platelet-reinforced composite (FG-GPLRC) thin cylindrical shells stiffened by orthogonal or spiral FG-GPLRC stiffeners under axial compression.
Kieu Quang Thai   +4 more
doaj   +1 more source

From Clinic to Computation: Multiscale Bioengineering Strategies for Durable Biological Aortic Valve Replacements

open access: yesAdvanced Functional Materials, EarlyView.
Bioprosthetic aortic valves have revolutionized the treatment of aortic stenosis, but their durability is limited by structural valve deterioration (SVD). This review focuses on the pericardial tissue at the heart of these valves, examining how its mechanical properties and calcification drive fatigue and failure.
Gabriele Greco   +7 more
wiley   +1 more source

Tests on Stiffened Circular Cylinders [PDF]

open access: yes
Compressive tests were made of two series of stiffened circular cylindrical shells under axial load. All the shells were 16 inches in diameter by 24 inches in length and were made of aluminum-alloy sheet curved to the proper radius and welded with one ...
Holt, Marshall
core   +1 more source

Molecularly Engineered Highly Stable Memristors with Ultra‐Low Operational Voltage: Integrating Synthetic DNA with Quasi‐2D Perovskites

open access: yesAdvanced Functional Materials, EarlyView.
Molecularly engineered memristors integrating Ag nanoparticle–embedded synthetic DNA with quasi‐2D halide perovskites enable ultra‐low‐operational voltage, forming‐free resistive switching, and record‐low power density. This synergistic integration of customized DNA and 2D OHP in bio‐hybrid architecture enhances charge transport, reduces variability ...
Kavya S. Keremane   +9 more
wiley   +1 more source

Comparative study of steel I-beam strengthened with CFRP and steel plate as a web stiffeners

open access: yesNext Materials
This study investigates the use of Carbon Fiber Reinforced Polymer (CFRP) plates as stiffeners to enhance the web of a steel I-beam. CFRP offers a lightweight and high-strength compare to steel, making it easier to handle during construction activities ...
Prashant Jagtap   +2 more
doaj   +1 more source

Sensorized Engineered Tissues with Built‐in Thermoregulation and Nutrient Supply

open access: yesAdvanced Functional Materials, EarlyView.
This work introduces a granular hydrogel‐based tissue engineering platform that includes a closed‐loop temperature control to maintain 37°C and sustainably releases nutrients, thereby enabling cells to retain a high viability even if stored at room temperature for up to 24 h.
Antonia Georgopoulou   +5 more
wiley   +1 more source

Effect of rotating speed and stiffeners on natural frequency of composite shell [PDF]

open access: yesفصلنامه علوم و فناوری فضایی, 2011
The effect of rotating speed and stiffeners on vibrations for composite rotors is investigated using Sander's shell theory. The frequency equation is derived implementing the Rayleigh-Ritz procedure based on energy method.
A. A. Jafari   +2 more
doaj  

Optimization of hybrid I-beams using modified particle swarm method

open access: yesИнженерно-строительный журнал, 2018
An approach for the optimization of hybrid welded I-beams based on the modification of the particle swarm method is proposed. A solution search is performed on discrete sets of variable parameters, which are taken as the size of sheets of rolled steel ...
Anatoly Alekseytsev, Mohamad Al Ali
doaj   +1 more source

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