Results 131 to 140 of about 238,331 (283)
Supersonic boundary-layer flow turbulence modeling [PDF]
Baldwin-Lomax and kappa-epsilon turbulence models were modified for use in Navier-Stokes numerical computations of Mach 2.9 supersonic turbulent boundary layer flows along compression ramps.
Wang, Chi-Rong
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Adaptive Twisting Metamaterials
Advanced Materials, EarlyView.This work introduces torque‐controlled twisting metamaterials as a transformative platform for adaptive crashworthiness. By combining multiscale predictive modeling with experimental validation on additively manufactured gyroids, it demonstrates tunable stiffness, collapse stress, and energy absorption.
Mattia Utzeri +6 more
wiley +1 more source
Evolution of Frictional Strength of Dry Sheared Granular Porous Media During Slip-Rate Weakening
InterPore JournalUsing the discrete-element method, we study loss of shear strength at frictional asperity contacts, induced by flash heating, in a granular fault gouge.
Sahar Bakhshian, Muhammad Sahimi
doaj +1 more source
Liquid Metal Microrobots for Magnetically Guided Transvascular Navigation
Advanced Materials, EarlyView.Liquid metal‐based microrobots combine magnetic steering, intrinsic X‐ray visibility and softness, to navigate blood vessels even against flow. Under clinically relevant magnetic fields, liquid metal microrobots roll along vessel walls, cross endothelial barriers, and accumulate in target tissues.
Xiaohui Ju +7 more
wiley +1 more source
Advanced Materials, EarlyView.Holographic microlithography enables the fabrication of fully connected 3D liquid crystalline structures in a single exposure. The process maintains precise control over the director orientation within the entire object, preventing local director distortions typically observed in sequential printing.
Lovish Gulati +8 more
wiley +1 more source
Correlation of ideal and actual shear strengths of metals with their friction properties [PDF]
The relation between the ideal and actual shear strengths and friction properties of clean metals in contact with clean diamond, boron nitride, silicon carbide, manganese-zinc ferrite, and the metals themselves in vacuum is discussed.
Buckley, D. H., Miyoshi, K.
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Ultrasound in Women's Health: Mechanisms, Applications, and Emerging Opportunities
Advanced Materials, EarlyView.As healthcare moves toward decentralization, ultrasound technologies are evolving from strictly imaging tools in clinical settings into versatile diagnostic and therapeutic platforms, with growing roles addressing women's health needs. This review highlights how ultrasound's underlying physical mechanisms can be harnessed to reduce disparities in women'
Sarah B. Ornellas +7 more
wiley +1 more source
Advanced Materials, EarlyView.A multidimensional molecular strategy optimizes the tribonegative layer by electrospinning PVDF‐HFP for dipole alignment and crystallinity, followed by 2D borophene doping to enhance conductivity and charge trapping. Integrated with Nylon‐66 nanofibers, the composite device delivers a record sensitivity of 53.8 ± 1.2 V kPa−1 at 3 Hz, enabling ultra ...
Sajib Roy +7 more
wiley +1 more source
GeotechnicsThe shear strength of rock discontinuities is a critical parameter in rock engineering projects for assessing the safety conditions of rock slopes or concrete dam foundations.
Mahdi Zoorabadi, José Muralha
doaj +1 more source
Friction and metal transfer for single-crystal silicon carbide in contact with various metals in vacuum [PDF]
Sliding friction experiments were conducted with single-crystal silicon carbide in contact with transition metals (tungsten, iron, rhodium, nickel, titanium, and cobalt), copper, and aluminum.
Buckley, D. H., Miyoshi, K.
core +1 more source