Results 91 to 100 of about 28,882 (305)

Modeling of Polymer Clay Nanocomposite for a Multiscale Approach

open access: yes, 2008
The mechanical property enhancement of polymer reinforced with nano-thin clay platelets (of high aspect ratio) is associated with a high polymer-filler interfacial area per unit volume.
Arai   +67 more
core   +1 more source

Drug‐Free Thrombolysis Mediated by Physically Activated Micro/Nanoparticles

open access: yesAdvanced Functional Materials, EarlyView.
Overview of particle‐mediated thrombolytic effects (thermal, mechanical, and chemical) and their activating physical stimuli (light, ultrasound, and magnetic field) in drug‐free thrombolysis. ABSTRACT Thrombus‐associated disorders rank among the world's leading causes of death, with ischemic heart disease and stroke as the main contributors.
Pierre Sarfati   +2 more
wiley   +1 more source

Analysis of mesh stiffness of herringbone gear considering modification

open access: yesJournal of Physics: Conference Series, 2019
Herringbone gear is a key component in the reducer. Its mesh stiffness is an important parameter in gear dynamics research. In this paper, an improved Velex method is proposed to calculate the mesh stiffness of herringbone gears, and compared with Weber method and Finite Element Method (FEM), the accuracy of the method is proved.
Wei Liu   +3 more
openaire   +1 more source

Two‐Way Shape Memory Alloy and Polymer Composite Hybrid Smart Actuator With High Speed, Accuracy, and Reversible Deformation

open access: yesAdvanced Functional Materials, EarlyView.
Tailored thermo‐mechanical properties of shape memory polymer composites enable large reversible deformation as well as high actuation speed. Moreover, a structural design with curvature in the transverse direction achieves sub‐second actuation on heating and a larger recovery ratio on cooling. Finally, these newly developed smart two‐way actuators can
Dajeong Kang   +6 more
wiley   +1 more source

Spatial Tooth Profile Design of Triple-circular-arc Harmonic Gears and Finite Element Simulation of Torsional Stiffness

open access: yesJixie chuandong, 2023
In order to improve the transmission capability by exploring the relationship between torsional stiffness on output shaft and load meshing characteristics, a simulation model of finite element analysis (FEA) is built to evaluate the performance of tooth ...
Xing Jingzhong   +3 more
doaj  

Effect of contact ratio on spur gear dynamic load [PDF]

open access: yes
A computer simulation is presented which shows how the gear contact ratio affects the dynamic load on a spur gear transmission. The contact ratio can be affected by the tooth addendum, the pressure angle, the tooth size (diametral pitch), and the center ...
Lin, Hsiang Hsi   +3 more
core   +1 more source

Cheese tart press machine [PDF]

open access: yes, 2017
Tart is a type of baked open-pastry which consists of a shortcrust pastry and a filling over it (Figure 9.1). Shortcrust pastry often used as the base for the tart.
Abdul Ghani, Luqman Ul-Hakimi   +4 more
core  

From Clinic to Computation: Multiscale Bioengineering Strategies for Durable Biological Aortic Valve Replacements

open access: yesAdvanced 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

Calculation and Analysis of Spur Gear Mesh Stiffness with Considering Wear

open access: yesJixie chuandong, 2021
A numerical method is proposed to calculate the mesh stiffness of spur gear with considering wear based on the potential energy method and Archard wear equation. A precise profile equation is constructed by generating method principle. Mesh stiffness for
Yang Liu, Xi Cui, Jiexin Wang
doaj  

Face-gear drives: Design, analysis, and testing for helicopter transmission applications [PDF]

open access: yes
The use of face-gears in helicopter transmissions was explored. A light-weight, split-torque transmission design utilizing face-gears is described. Face-gear design and geometry were investigated.
Bossler, R. B., Jr.   +5 more
core   +1 more source

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