Results 81 to 90 of about 77,127 (301)

Speed control device for a heavy duty shaft [PDF]

, 1980
A speed control device is characterized by a reference speed shaft spatially related to a heavy duty shaft, a drive train for driving the reference speed shaft at a constant angular velocity, a drive train for driving the heavy duty shaft at a variable ...
Ford, A. G.
core   +1 more source

Light‑Driven Propulsion of Graphene Aerogels in Microgravity

Advanced Science, EarlyView.
Ultralight graphene aerogels convert laser light into thrust. Parabolic‐flight experiments directly compare their motion in microgravity and at 1 g, revealing order‐of‐magnitude enhancements in distance, velocity, and transient thrust when weight and friction are removed (∼50 times enhancement).
Omnia Khattab, Rami Elkaffas, Basel Altawil, Omar Alsuwaidi, Afnan Almubashir, Claire Perfetti, Shanavas Shajahan, Marco Braibanti, Sean Swei, Carlo Saverio Iorio, Yarjan Abdul Samad   +10 more
wiley   +1 more source

Assisted assignment of automotive safety requirements [PDF]

, 2013
ISO 26262, a functional-safety standard, uses Automotive Safety Integrity Levels (ASILs) to assign safety requirements to automotive-system elements. System designers initially assign ASILs to system-level hazards and then allocate them to elements of ...
Araújo, Rui Esteves, Azevedo, Luis da Silva, Papadopoulos, Yiannis, Parker, David, Walker, Martin   +4 more
core   +1 more source

Self‐Powered Bearing Sensing and Real‐Time Fault Diagnosis Enabled by Non‐Invasive Triboelectric Sensors and Edge AI Acceleration

Advanced Science, EarlyView.
This study achieves the synergistic integration of self‐powered sensing and edge AI acceleration to establish a real‐time fault diagnosis system. The proposed TENG‐based self‐powered bearing sensor (NSE‐TBS) and FPGA‐accelerated edge AI framework fundamentally break through the inherent limitations of conventional monitoring systems, including complex ...
Kehui Zhu, Zhongheng Liu, Xinming Li, Jinrui Zhang, Meng Li, Yiming Guo, Lihua Han, Yanxue Wang   +7 more
wiley   +1 more source

Automation of Surgical Workflow Recognition: Unveiling the Surgical Instrument Kinematics that Underly Robot‐Assisted Prostatectomy Procedures

Advanced Intelligent Discovery, EarlyView.
Automated procedural analysis is recognized as one of the major game changers for robotic surgery. Meaning digital analysis needs to replace the manual assessments that set todays standard. Mechanical robotic‐instrument tracking enables the derivation of quantitative kinematic metrics that support behavior‐based workflow segmentation into distinct ...
Kateryna Pirkovets, Matthias N. van Oosterom, Vera A. Ottens, Henk G. van der Poel, Fijs W. B. van Leeuwen   +4 more
wiley   +1 more source

Driver Behavior Modeling with Subjective Risk‐Driven Inverse Reinforcement Learning

Advanced Intelligent Systems, EarlyView.
A subjective risk‐driven inverse reinforcement learning framework is proposed to model driver decision‐making. It infers drivers' risk perception and risk tolerance from driving data. A learnable risk threshold is used to regulate decisions, enabling interpretable and human‐like driving behavior decisions.
Yang Liang, Zichao Wang, Zhiwei He, Qingquan Wei, Yong Zuo, Linzhen Nie, Zhishuai Yin   +6 more
wiley   +1 more source

Research on the braking force model of brake discs based on thermal stress distribution

Jixie chuandong
ObjectiveTo precisely calculate the brake disc braking force of a disc brake system, a brake disc braking force model based on the quasi-static temperature and thermal stress distribution of the brake pad under the influence of heat source was ...
JIANG Fangyu, GAO Qiang, YAN Pengfei, ZAN Xiaolei, LI Yaning   +4 more
doaj  

Intravenous lanadelumab for the treatment of moderately ill COVID‐19 patients

British Journal of Clinical Pharmacology, EarlyView.
Aims Kallikrein‐kinin system (KKS) dysregulation is hypothesized to play a pathogenetic role in COVID‐19‐associated pulmonary oedema. To investigate the efficacy and safety of intravenous lanadelumab, a monoclonal antibody that inhibits plasma kallikrein, in COVID‐19, we conducted a phase 2, open‐label, randomized‐controlled, proof‐of‐concept ...
Job J. Engel, Christine van Linge, W. Joost Wiersinga, Ilse J. E. Kouijzer, Quirijn de Mast, Robert‐Jan Hassing, Danique J. H. Huijbens, Helen L. Leavis, Roger Schutgens, Coen Maas, Kit C. B. Roes, Frank L. van de Veerdonk, Roger Brüggemann   +12 more
wiley   +1 more source

Effect of Effective Working Gap Position on Braking Performance of T-type Magnetorheological Brake

Jixie chuandong, 2021
Aiming at the effect of different position and quantity working gaps of T-type magnetorheological（MR） brake on braking performance， combined with theoretical modeling and simulation analysis， the braking torque and magnetic field distribution of T-type ...
Yuming Huang, Jie Wu, Bingbing Deng
doaj  

Guideline for Forming Stiffened Panels by Using the Electromagnetic Forces

Metals, 2016
Electromagnetic forming (EMF), as a high-speed forming technology by applying the electromagnetic forces to manufacture sheet or tube metal parts, has many potential advantages, such as contact-free and resistance to buckling and springback.
Jinqiang Tan, Mei Zhan, Shuai Liu
doaj   +1 more source