Results 141 to 150 of about 60,618 (302)
Advanced 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
Jixie chuandong, 2009 Based on the space engagement theory,the meshing function of the non-backlash hourglass worm gearing,the tooth surface equations of worm and the contacting line equation of worm gear are established.
王凯, 王进戈, 邓星桥
doaj
Effect of extended tooth contact on the modeling of spur gear transmissions [PDF]
In some gear dynamic models, the effect of tooth flexibility is ignored when the model determines which pairs of teeth are in contact. Deflection of loaded teeth is not introduced until the equations of motion are solved.
Coy, John J. +3 more
core +1 more source
Efficient Charge Transport in Zero‐Dimensional Perovskite for Ultrahigh‐Sensitivity X‐Ray Detection
Advanced Functional Materials, EarlyView.A novel mono‐octahedral 0D Bi‐based Dpy3Bi2I12 perovskite strengthens the internal hydrogen bonds and forms a quasi‐2D lattice, exhibits exceptional charge transport and mobility, achieving high X‐ray sensitivity and ultralow‐dose imaging, and setting a new benchmark for 0D detector performance.
Xin Song +16 more
wiley +1 more source
Finite Element Contact Analysis of the Roller Enveloping End Face Engagement Worm Drive
Jixie chuandong, 2018 Based on the meshing theory of the roller enveloping end face engagement worm drive and the contact finite element analysis method,the finite element analysis software of ANSYS is used to establish the finite element analysis model of the roller ...
Wang Kai, Wang Jueling, Wang Liwei
doaj
Application of Face-Gear Drives in Helicopter Transmissions [PDF]
The use of face gears in helicopter transmissions was explored. A light-weight, split torque transmission design utilizing face gears was described. Face-gear design and geometry were investigated.
Bossler, R. B., Jr. +5 more
core +1 more source
Advanced Functional Materials, EarlyView.ABSTRACT Breathable membranes that reject chemical warfare agents (CWAs) are required for next‐generation protective apparel. A dual‐function graphene oxide (GO)‐polyamine architecture is introduced that addresses the long‐standing tradeoff between vapor transmission and CWA selectivity.
Hyungjun Kim +6 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Synergistic interfacial strategy between inorganic ceramic fillers and polymer chains effectively inhibit particle aggregation and interfacial incompatibility. complex covalent and non‐covalent interfacial interactions promote superior uniformity, ultra‐high ceramic filler loading, and strong grain‐to‐grain connectivity, thereby enabling the ...
HakSu Jang +20 more
wiley +1 more source
Jixie chuandong, 2016 Comparing with straight tooth synchronous belt,the double helical synchronous belt has the characteristics of high transmission accuracy,low noise,smooth running.
Guo Jianhua +3 more
doaj
In Situ 3D Bioprinting: Impact of Cross‐Linking on the Adhesive Properties of Hydrogels
Advanced Functional Materials, EarlyView.In situ 3D bioprinting enables the direct deposition of cell‐laden, adhesive biomaterials for on‐site tissue regeneration. This review provides a comprehensive overview of how cross‐linking influences the bioadhesive properties of hydrogels used in 3D bioprinting, highlighting cross‐linking triggers, bioadhesion mechanisms, polymer interpenetration ...
Odile Romero Fernandez +4 more
wiley +1 more source