Results 61 to 70 of about 47,409 (286)

A rare case of a ball and socket ankle joint [PDF]

open access: yesBMJ Case Reports, 2011
A 50-year-old otherwise well gentleman presented with mild pain and stiffness in his right ankle. Remarkably, radiographs revealed gross congenital deformities. The ankle mortice was semicircular and the subtalar joints fused (figure 1). There were only three metatarsals. The bases of the …
openaire   +2 more sources

Xenes for Sustainable Energy: A Roadmap From First‐Principles Design to Practical Deployment

open access: yesAdvanced Materials Interfaces, EarlyView.
Emerging 2D Xenes are advancing from theoretical predictions toward practical energy‐storage and conversion technologies through the integration of first‐principles modelling, experimental synthesis, electrochemical validation, and AI‐assisted materials design, enabling accelerated discovery of high‐performance and sustainable electrochemical systems ...
Onur Karaman, Ceren Karaman
wiley   +1 more source

About Calculation and Experimental Estimation of Working Capacity of Ball Joints of a Vehicle Chassis. Part 1. Calculation by Srength Criterion

open access: yesМеханика машин, механизмов и материалов, 2019
The ball joints of vehicles are referred to the steering and suspension critical units. Strength calculation of the ball pin under static loading is usually performed in the practice of designing these units.
Alexander V. Bogdanovich
doaj  

Parametrization and Range of Motion of the Ball-and-Socket Joint [PDF]

open access: yes, 2001
The ball-and-socket joint model is used to represent articulations with three rotational degrees of freedom (DOF), such as the human shoulder and the hip. The goal of this paper is to discuss two related problems: the parametrization and the definition of realistic joint boundaries for ball-and-socket joints.
Paolo Baerlocher, Ronan Boulic
openaire   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

open access: yesAdvanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu   +8 more
wiley   +1 more source

From Rigid to Soft Robotic Approaches for Neuroendoscopy

open access: yesAdvanced Robotics Research, EarlyView.
Robotic assistance has had minimal impact on deep intraventricular surgeries, where small‐scale, precision, and reduced invasiveness can contribute to improved patient outcomes. Emerging technologies in rigid, soft, and hybrid robotics are reviewed to identify the most promising mechanisms for deep brain navigation in addition to an attempt to identify
Kieran Gilday   +3 more
wiley   +1 more source

Dynamics Performance and Abrasive Wear of the Automotive Drive Shaft

open access: yesAdvances in Mechanical Engineering, 2014
An automotive drive shaft is used in a front drive transmission vehicle for transmitting rotary movement from the gearbox output shaft to the wheels with a constant velocity.
Jian Mao, Yuanxin Luo, Jun Liu
doaj   +1 more source

Modulus‐Switchable Miniature Robots for Biomedical Applications: A Review

open access: yesAdvanced Robotics Research, EarlyView.
Materials, robot designs, proof‐of‐concept functions, and biomedical applications of modulus‐switchable miniature robots. Miniature soft robots have shown great potential in biomedical applications due to their excellent controllability and suitable mechanical properties in biological environments.
Chunyun Wei, Yibin Wang, Jiangfan Yu
wiley   +1 more source

STUDY ON ELECTRONIC PACKAGE MINIATURE BALL GRID ARRAY SOLDER JOINTS STRESS AND STRAIN UNDER THREE POINT BENDING

open access: yesJixie qiangdu, 2016
The miniature ball grid array( BGA) solder joint three point bending stress and strain finite element analysis models were set up,and the influences of ball diameter,ball height,pad diameter and bending load speed on the stress and strain of miniature ...
LIANG Ying   +5 more
doaj  

Development and Application of a Ball-on-plate Balancing System [PDF]

open access: yes한국정밀공학회지
The Ball-on-Plate Balancing System is a system where the base is fixed to the ground, and the plate is connected to the base through a spherical joint and can rotate in two directions (X-axis roll rotation, Y-axis pitch rotation).
Sangsin Park
doaj   +1 more source

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