Results 41 to 50 of about 316,098 (246)

Direct measurement method and prediction formula for permeability coefficient of unsaturated soils

open access: yesYantu gongcheng xuebao, 2019
Various measurement methods and prediction models for the permeability coefficient of unsaturated soils are summarized. A method for measuring the permeability coefficient and a prediction model are proposed.
SHAO Long-tan 1,2, WEN Tian-de 1,2, GUO Xiao-xia 1,2
doaj   +1 more source

Development of energy efficient hydrostatic drives with energy recovery

open access: yes, 2017
Recovery of kinetic energy for its subsequent storage in hydraulic accumulators may be performed due to employment of regenerative braking. It is due to two-directional energy flow that the whole cycle of vehicle movement is made possible. Dynamic models,
Ryszard Dindorf, Piotr Woś
core   +1 more source

Unified Pressure and Field Response Across Distinct Charge‐Order Regimes in Ti‐Doped CsV3Sb5

open access: yesAdvanced Functional Materials, EarlyView.
We microscopically investigate the interplay between charge order and superconductivity in a kagome superconductor across regimes of long‐ and short‐range charge order. Hydrostatic‐pressure and magnetic‐field μSR$\mu{\rm SR}$ measurements reveal remarkably similar superconducting and normal‐state time‐reversal‐symmetry‐breaking responses in both ...
P. Kral   +12 more
wiley   +1 more source

Precise Tuning of Cortical Contractility Regulates Cell Shape during Cytokinesis

open access: yesCell Reports, 2020
Summary: The mechanical properties of the actin cortex regulate shape changes during cell division, cell migration, and tissue morphogenesis. We show that modulation of myosin II (MII) filament composition allows tuning of surface tension at the cortex ...
Nilay Taneja   +8 more
doaj   +1 more source

Vascular adaptation model from force balance: Physarum polycephalum as a case study

open access: yesNew Journal of Physics, 2023
Understanding vascular adaptation, namely what drives veins to shrink or grow, is key for the self-organization of flow networks and their optimization.
Sophie Marbach, Noah Ziethen, Karen Alim
doaj   +1 more source

Engineered Microvascular Model of the Blood–Brain–Tumor Barrier Reveals Endothelial Remodeling in Diffuse Midline Glioma

open access: yesAdvanced Healthcare Materials, EarlyView.
We developed a patient‐derived, functional microfluidic model of the diffuse midline glioma (DMG) blood–brain–tumor barrier (BBTB) comprised of endothelial cells, astrocytes, pericytes, and tumor cells. The system forms perfusable microvasculature, reveals the BBTB retains vascular integrity, identifies DMG‐specific transcriptomic changes distinct from
Kimberly R. Bennett   +7 more
wiley   +1 more source

Energy Loss Coefficients ki in a Displacement Pump and Hydraulic Motor used in Hydrostatic Drives

open access: yesPolish Maritime Research, 2019
The article aims at defining and analysing the energy loss coefficients in design solutions of rotating displacement machines, with a piston machine as an example. The energy losses observed in these machines include mechanical loss, volumetric loss, and
Maczyszyn Agnieszka
doaj   +1 more source

A luminal glycoprotein drives dose-dependent diameter expansion of the Drosophila melanogaster hindgut tube. [PDF]

open access: yesPLoS Genetics, 2012
An important step in epithelial organ development is size maturation of the organ lumen to attain correct dimensions. Here we show that the regulated expression of Tenectin (Tnc) is critical to shape the Drosophila melanogaster hindgut tube.
Zulfeqhar A Syed   +7 more
doaj   +1 more source

Computer simulation of the hydrostatic skeleton: the physical equivalent, mathematics and application to worm-like forms [PDF]

open access: yes, 1989
Wadepuhl M, Beyn W-J. Computer simulation of the hydrostatic skeleton: the physical equivalent, mathematics and application to worm-like forms. Journal of Theoretical Biology.
Beyn, Wolf-Jürgen, Wadepuhl, M.
core   +1 more source

Chemical Strategies for Multistimuli Responsive Dynamic Covalent Materials in Regenerative Medicine

open access: yesAdvanced Healthcare Materials, EarlyView.
Multistimuli responsive dynamic covalent materials integrate reversible chemistry with the complex chemical, mechanical, and biochemical cues of regenerative environments. This review highlights chemical strategies based on orthogonal dynamic bonds, multicomponent networks, and hierarchical architectures to regulate mechanics, degradation, and ...
Saurabh Joshi   +2 more
wiley   +1 more source

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