Results 51 to 60 of about 605 (191)

基于最优传动性能设计偏置曲柄滑块机构的研究

open access: yesJixie chuandong, 2014
Under the design conditions of given time ratio and stroke,according to the bias schematic diagram slider-crank mechanism,the value interval of crank length is obtained by analysis,the structure size design formula of slider-crank mechanism is deduced ...
苏有良
doaj  

Stepwise Engineering of Van der Waals Heterostructures for High Current Density in Light Emitting Devices

open access: yesAdvanced Electronic Materials, EarlyView.
A novel strategy for achieving high current density in van der Waals (vdW) heterostructure‐based light‐emitting devices (LEDs) is proposed. Based on this concept, an LED utilizing a WS2/WSe2 heterostructure was fabricated, achieving a current density of 9.4 × 104 A/cm2.
Rei Usami   +7 more
wiley   +1 more source

Towards Advanced Intelligent and Perceptive Soft Grippers

open access: yesAdvanced Intelligent Systems, EarlyView.
Implementing soft yet strong and intelligent soft grippers request innovative and creative solutions in designing soft bodies and seamlessly integrating actuated systems with hierarchical sensing. This review systematically analyses soft grippers with a deep understanding of core components, from fundamental design principles to actuation and sensing ...
Haneul Kim   +4 more
wiley   +1 more source

Hand‐powered and programmable electrowetting‐on‐dielectric droplet actuation enabled by triboelectric nanogenerator and mechanically encoded punch‐card switch array

open access: yesDroplet, EarlyView.
A hand‐powered and mechanically programmable electrowetting‐on‐dielectric platform is demonstrated by integrating a contact‐separation triboelectric nanogenerator with a mechanically encoded punch‐card switch array. This unified mechanical–electrical architecture enables autonomous, portable, and robust droplet control for field‐deployable microfluidic
Jing Ding   +5 more
wiley   +1 more source

机械式压力机曲柄六杆机构运动学特性分析

open access: yesJixie chuandong, 2011
Compared with crank and slider mechanism,the ultimate output component with crank toggle as a combination transmission mechanism has some better characteristics for transmitting movement and force.The relation of position,speed and acceleration between ...
王粟   +4 more
doaj  

Kinematics Analysis of Multi-link Mechanism for Miniature Servo Press Based on Matlab

open access: yesMATEC Web of Conferences, 2018
The degree of freedom for a multi-link drive mechanism of a 50kN miniature servo press was calculated. The kinematics equations of the mechanism was established based on the rod group method.
Lu Xinjian
doaj   +1 more source

Fish Scales: A Multifunctional Biomaterial from Nature

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Fish scales demonstrate nature's solution to impact protection through overlapping multilayered architecture. This biological design combines mineralized surfaces with collagen networks to achieve both flexibility and fracture resistance. The structural principles inspire advanced protective materials and biomedical implants, where damage tolerance ...
Liyao Dong, Xiaojie Sun, Xiguang Chen
wiley   +1 more source

Mechanism Design and Kinematics Analysis of Adaptive Rehabilitation Apparatus for Human Knee Joint

open access: yesJixie chuandong, 2020
The knee adaptive rehabilitation apparatus is designed, which consists of a swinging guide linkand a crank slider mechanism.According to ergonomics,the size range of the shank in the adaptive rehabilitation apparatus is determined by analyzing the motion
Tongtong Zhong   +4 more
doaj  

Monolithic Framework to Simulate Fluid‐Structure Interaction Problems Using Geometric Volume‐of‐Fluid Method

open access: yesInternational Journal for Numerical Methods in Fluids, EarlyView.
A three‐dimensional fluid‐structure interaction (FSI) framework is developed using the geometric volume‐of‐fluid (VOF) interface capturing method and applied to assess largescale turbulent FSI interactions. The monolithic FSI framework is extensively validated, and despite the discontinuities across the interface, the FSI framework delivers stable and ...
Soham Prajapati   +2 more
wiley   +1 more source

Dimensional synthesis of the Stirling engine based on optimizing the output work by evolutionary algorithms

open access: yesEnergy Reports, 2020
Nowadays, attractions are focused on Stirling engines because of their low noise, external combustion, and the possibility of employing solar energy. These engines can be designed and applied in cases of low or high-temperature differences, as needed ...
A. Rahmati   +3 more
doaj   +1 more source

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