Results 91 to 100 of about 226,737 (268)

An Injectable, Self‐Expanding Hemostatic Foam for Field‐Compatible Postpartum Hemorrhage Management

open access: yesAdvanced Science, EarlyView.
Postpartum hemorrhage is the leading cause of maternal death worldwide, yet many treatments are hard to use outside well‐equipped hospitals. This work introduces an easy‐to‐use device that rapidly delivers a degradable foam into the uterus. The foam stops bleeding through pressure and clotting support, offering a practical option for low‐resource ...
Charlotte Meyer   +12 more
wiley   +1 more source

DOUBLE POROSITY MODELS FOR LIQUID FILTRATION IN INCOMPRESSIBLE POROELASTIC MEDIA [PDF]

open access: yesMathematical Models and Methods in Applied Sciences, 2010
Double porosity models for the liquid filtration in a naturally fractured reservoir is derived from the homogenization theory. The governing equations on the microscopic level consist of the stationary Stokes system for an incompressible viscous fluid, occupying a crack-pore space (liquid domain), and stationary Lame equations for an incompressible ...
openaire   +4 more sources

Experiments on Nonlocal Fluid‐Flow Metamaterials

open access: yesAdvanced Science, EarlyView.
A nonlocal fluid‐flow metamaterial composed of standard microfluidic tubes and connectors is designed. Hence, the current of the system at one position depends on the gradient of fluid flow at many other positions, leading to unusual alternating backward and forward laminar flows of water.
Ke Wang, Yi Chen, Martin Wegener
wiley   +1 more source

A Hybrid Hierarchical Framework for Quantifying Mechanical Markers in Atherosclerotic Disease Progression: A New Approach for Diagnosis and Risk Assessment

open access: yesAdvanced Science, EarlyView.
The mechanobiological basis of atherosclerotic progression and its contribution to spatial and temporal heterogeneity remain incompletely understood. Spatially resolved AFM measurements revealed that plaque formation and distinct regions (cap fibrosis, intimal fibrosis, and lipid‐rich core) exhibit heterogeneous elastic modulus and viscoelastic ...
Yidan Zhou   +13 more
wiley   +1 more source

Method of discrete singularities in problems of filler vibrations in fuel tanks under overloads and at low gravity

open access: yesВісник Харківського національного університету імені В.Н. Каразіна. Серія: Математичне моделювання, інформаційні технології, автоматизовані системи управління, 2019
The paper is about free vibration problems in fuel tanks with different levels of fillers both under overloads and low gravity. The fuel tanks are considered as rigid shells of revolution.
Myronenko Maria L.   +2 more
doaj   +1 more source

A computational investigation of vibration of stationary and rotating structures submerged in a liquid [PDF]

open access: yesApplied and Computational Mechanics, 2008
To realize some technological processes components of a number of stationary and rotating machines work submerged in various liquids. Therefore their vibration is significantly influenced by their interaction with the medium in the surrounding space.
Zapoměl J., Čermák L., Pochylý F.
doaj  

Challenges in Sizing Rupture Disk Vent Line Systems Especially for Compressible Two-phase Flow

open access: yesChemical Engineering Transactions, 2016
In the chemical and petrochemical industry, vessels and pipes are protected against overpressure using safety relief devices, usually rupture disks (also called a bursting disc) or safety valves.
Kimandi Mutegi Mondie   +2 more
doaj   +1 more source

Photoluminescence Spectroscopy of Incompressible Electron Liquid States in GaAs

open access: yes, 1993
We review recent photoluminescence measurements of high-mobility electrons in GaAs in the fractional quantum Hall regime. The interaction between two-dimensional electrons and photoexcited valence band holes is fundamental in determining the photoluminescence spectrum.
Ryan, J   +5 more
openaire   +2 more sources

Quantifying Structure‐Dependent Rigidity of 3D DNA Origami Boxes

open access: yesAdvanced Intelligent Systems, EarlyView.
We investigate the mechanical stability of a hollow 3D DNA origami box during assembly using liquid AFM imaging and finite element simulations. As structural completeness increases from flat sheets through intermediate assemblies to a closed box, rigidity improves.
Judith Zubia‐Aranburu   +5 more
wiley   +1 more source

Finite element methods for incompressible flow problems

open access: yes, 2016
This book explores finite element methods for incompressible flow problems: Stokes equations, stationary Navier-Stokes equations, and time-dependent Navier-Stokes equations.
John, Volker
core   +1 more source

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