Results 61 to 70 of about 220,127 (302)

High‐Resolution and Real‐Time In Situ Generation of Cellular Spheroids by Laser‐Assisted Bioprinting for Guided Microvascularization

open access: yesAdvanced Functional Materials, EarlyView.
Micro‐injection laser‐assisted bioprinting enables ultrafast and precise patterning of small endothelial cell spheroids by injecting a highly concentrated single‐cell suspension into GelMA/ColMA hydrogels. In co‐culture with fibroblasts, controlled pre‐vasculogenic network formation is obtained at microscale resolution.
Charles Handschin   +9 more
wiley   +1 more source

Piezoelectric Ring Bender for Characterization of Shear Waves in Compacted Sandy Soils

open access: yesSensors, 2021
Shear wave velocity and small-strain shear modulus are widely used as the mechanical properties of soil. The objective of this study is to develop a new shear wave monitoring system using a pair of piezoelectric ring benders (RBs) and to evaluate the ...
Dong-Ju Kim   +2 more
doaj   +1 more source

Characteristics of Langmuir Turbulence in the Ocean Mixed Layer [PDF]

open access: yes, 2009
This study uses large-eddy simulation (LES) to investigate the characteristics of Langmuir turbulence through the turbulent kinetic energy (TKE) budget. Based on an analysis of the TKE budget a velocity scale for Langmuir turbulence is proposed.
Belcher, Stephen E., Grant, Alan L. M.
core   +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

Theoretical study of peculiarities of unstable longitudinal shear crack growth in sub-Rayleigh and supershear regimes [PDF]

open access: yes, 2000
In the paper we present the results of the theoretical study of some fundamental aspects of mode II crack propagation in conventional sub-Rayleigh regime and transition to intersonic regime.
Aßmann, M.   +19 more
core   +2 more sources

Ultrasound shear wave elastography of the anterior talofibular and calcaneofibular ligaments in healthy subjects

open access: yesJournal of Ultrasonography, 2021
Aim of study: Most sprained lateral ankle ligaments heal uneventfully, but in some cases the ligament’s elastic function is not restored, leading to chronic ankle instability.
Gimber Lana H.   +6 more
doaj   +1 more source

Estimation Of Formation Parameters Using Full Waveform Acoustic and Shear Wave Logs [PDF]

open access: yes, 1992
A combination of borehole Stoneley waves from full waveform acoustic logs and direct shear wave logs was used to estimate formation permeability and shear wave velocity.
Cheng, C. H., Cheng, N. Y.
core  

Tissue‐Stimulator Platform for Electrically Stimulating Pancreatic β‐Cells for Long‐Term Functional Regulation

open access: yesAdvanced Functional Materials, EarlyView.
We present a tissue‐stimulator platform for seamless electrode integration with pancreatic tissue, applying uniform electrical stimulation through optimized design with biohybrid 3D printing. Advantageous effects of electrical stimulation on β‐cell function were observed, including enhanced calcium signaling, islet morphology, and maturation.
Jihwan Kim   +7 more
wiley   +1 more source

Formulation for Effective Screening and Management of Nonalcoholic Steatohepatitis: Noninvasive NAFLD Management Strategy

open access: yesGastroenterology Research and Practice, 2016
To establish a versatile means for screening and management of nonalcoholic steatohepatitis (NASH), shear wave velocity was measured in 20 normal controls and 138 consecutive nonalcoholic fatty liver disease (NAFLD) cases.
Kanae Hirose   +7 more
doaj   +1 more source

Changes in wave climate over the northwest European shelf seas during the last 12,000 years

open access: yes, 2009
Because of the depth attenuation of wave orbital velocity, wave-induced bed shear stress is much more sensitive to changes in total water depth than tidal-induced bed shear stress.
Austin   +45 more
core   +1 more source

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