Results 81 to 90 of about 93,060 (311)

Tunable Bioresorbable Scaffolds With Marine Sulfated Polysaccharides for Small‐Caliber Vascular Grafts: A Multi‐Layered Strategy Combining Electrospinning and 4‐Axis Printing

open access: yesAdvanced Healthcare Materials, EarlyView.
A multilayered small‐caliber vascular scaffold combining electrospinning and 4‐axis printing is developed and biofunctionalized with marine sulfated polysaccharides from Holothuria tubulosa. The resulting construct exhibits enhanced hemocompatibility, tunable mechanical properties, and supports endothelial and smooth muscle cell adhesion and ...
Gabriele Obino   +9 more
wiley   +1 more source

EFFECT OF OPERATION CONDITIONS ON MECHANICAL PROPERTIES OF AA7020-T53 ALLOY WELDED BY FRICTION STIR WELDING

open access: yesJournal of Engineering and Sustainable Development, 2019
Friction stir welding -FSW- is a new process of joining AA7020- T53 aluminum alloy sheet. There are few parameters which effects of FSW such as spindle speed, feed rate, tool design and tool tilt angle.
Isam Tareq Abdullah   +1 more
doaj  

Effect analysis of bearing and interface dynamics on tool point FRF for chatter stability in machine tools by using a new analytical model for spindle-tool assemblies [PDF]

open access: yes, 2007
Self-excited vibration of the tool, regenerative chatter, can be predicted and eliminated if the stability lobe diagram of the spindle–holder–tool assembly is known.
Budak, Erhan   +4 more
core   +1 more source

An In Situ Embedded B‐MOF Sponge With Shape‐Memory for All‐in‐One Diabetic Wound Therapy

open access: yesAdvanced Healthcare Materials, EarlyView.
A smart shape‐memory sponge dressing (P1A3@B‐MOF) is developed for accelerated diabetic wound healing. It achieves pH‐responsive corelease of Zn2+ and salvianolic acid B, synergistically providing antibacterial action, repolarizing macrophages to the M2 phenotype, and promoting angiogenesis.
Hai Zhou   +11 more
wiley   +1 more source

Analysis of cutting parameters in point machining of parts with complex shape [PDF]

open access: yes, 2018
This paper presents developed SW module in the postprocessor, which is designed to backward analysis of CAM milling toolpath. The module is designed to analyze multi-axis finishing machining of complex shape parts with milling cutters with a circular ...
Rybín J.   +3 more
core  

Realization of High Efficiency and Low Damage Machining of Anisotropic KDP Crystal by Grinding [PDF]

open access: yes, 2019
Potassium dihydrogen phosphate (KDP) is a non-linear material used in various opto-electronic applications including Q-switches, high-speed photography shutters, frequency harmonic generation lens and Pockels cells in the Inertial Confinement Fusion (ICF)
Cai, Rui   +4 more
core   +1 more source

Spindle rotational speed limit at tightening

open access: yesIzvestiya MGTU MAMI, 2008
The article reviews the formula for determination of rotational speed limit of multispindle screwing unit at the moment of tightening start.
openaire   +1 more source

A Tri‐Culture Heart‐on‐a‐Chip Platform With iPSC‐Derived Cardiac Cells for Predictive Cardiotoxicity Testing

open access: yesAdvanced Healthcare Materials, EarlyView.
This study presents the first entirely isogenic heart‐on‐chip, unifying cardiomyocytes, fibroblasts, and endothelial cells from a single iPSC source. The platform reveals a critical biological insight: the endothelium actively shields cardiac tissue from drug‐induced toxicity, challenging the predictive accuracy of conventional, avascular models for ...
Karine Tadevosyan   +12 more
wiley   +1 more source

Influence of material removal on the dynamic behavior of thin-walled structures in peripheral milling [PDF]

open access: yes, 2006
Machining is a material removal process that alters the dynamic properties during machining operations. The peripheral milling of a thin-walled structure generates vibration of the workpiece and this influences the quality of the machined surface.
Arnaud, Lionel   +3 more
core   +2 more sources

Zinc‐Containing Bioactive Glass Programs Macrophage Polarization through Extracellular Traps Regulation for Enhanced Diabetic Wound Healing

open access: yesAdvanced Healthcare Materials, EarlyView.
Zinc‐containing bioactive glass (ZnBG) promotes diabetic wound healing by regulating macrophage extracellular traps (METs). Specifically, ZnBG reduces oxidative stress and inhibits the PAD4 and NLRP3/caspase‐1/GSDMD signaling pathways, thereby suppressing MET formation.
RuiYang Sun   +11 more
wiley   +1 more source

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