Results 51 to 60 of about 617 (198)

Design and Multibody Dynamics Modeling of a Novel High‐Static‐Low‐Dynamic‐Stiffness Vibration Isolation Mechanism Based on Euler Buckling Characteristics

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Vibration isolation has long been a critical area of research, with the design of isolators based on the mechanical properties of Euler buckling beams representing one of the primary approaches. Traditionally, the focus has been on utilizing the negative stiffness characteristics of a post‐buckled Euler beam in parallel with positive stiffness
Yichang Feng   +3 more
wiley   +1 more source

From Flybys to Sample Return: A Review of Space Probes and Robotic Sampling Technologies for Small Bodies

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang   +3 more
wiley   +1 more source

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

Stair‐Climbing Wheelchairs for Enhanced Mobility: A Comprehensive Review of Fundamental Mechanisms, Design Concepts, and Performance Analysis

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT People with physical disabilities face significant mobility challenges while climbing uneven surfaces and staircases. In these circumstances, traditional wheelchairs do not provide stable, safely controlled mobility, underscoring the importance of building superior stair‐climbing wheelchairs for both medical and infrastructure purposes.
Gopisetti Manikanta   +10 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  

THE CRANK-SLIDER MECHANISM FUNCTIONALITY

open access: yesJournal of Mathematics, Mechanics and Computer Science, 2023
A. Tuleshov   +4 more
openaire   +1 more source

The influence of cutting height on arthropods in farm grassland

open access: yesInsect Conservation and Diversity, EarlyView.
Mowing at a cutting height of 13 cm slightly reduced the immediate negative impact of mowing compared to mowing at a height of 7 cm. Medium‐term effects overrode this benefit: the number of vegetation‐dwelling arthropods remained strongly reduced two and four weeks after mowing, regardless of the cutting height.
Lea von Berg   +6 more
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  

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

Characterisation of human hair follicle development

open access: yesJournal of Anatomy, EarlyView.
Schematic of hair follicle development in human skin. Hair follicle primordia of similar sizes, but different densities, are laid out across the skin. The distinction between terminal and vellus hair sites is not obvious at early stages of hair follicle development.
Zoe R. Sudderick   +4 more
wiley   +1 more source

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