Results 41 to 50 of about 2,036,755 (365)

System Design of a Novel Minimally Invasive Surgical Robot That Combines the Advantages of MIS Techniques and Robotic Technology

IEEE Access, 2020
Existing minimally invasive surgical (MIS) robots are generally large, complex and expensive, which greatly increases the operation cost and limits the applications of MIS robot technology.
Huaifeng Zhang, Jianmin Li, Kang Kong, Shuxin Wang   +3 more
doaj   +1 more source

Design and Optimization of a New Anti-reflux Biliary Stent With Retractable Bionic Valve Based on Fluid-Structure Interaction Analysis

Frontiers in Bioengineering and Biotechnology, 2022
Duodenal biliary reflux has been a challenging common problem which could cause dreadful complications after biliary stent implantation. A novel anti-reflux biliary stent with a retractable bionic valve was proposed according to the concertina motion ...
Yushan Su, Zhongxia Xiang, Xiaofei Song, Shuxian Zheng, Xinsheng Xu   +4 more
doaj   +1 more source

Design of a crab-like bistable mechanism for nearly equal switching forces in forward and backward directions

, 2018
A compliant bistable mechanism with a crab-like structure for nearly equal switching forces in the forward and backward directions is developed. It consists of four crab-leg-like beams and a shuttle mass.
Dung-An Wang, 王東安, Ngoc Dang Khoa Tran   +2 more
core   +1 more source

Chatter Prediction for Variable Pitch and Variable Helix Milling

Shock and Vibration, 2015
Regenerative chatter is a self-excited vibration that can occur during milling, which shortens the lifetime of the tool and results in unacceptable surface quality.
Yong Wang, Taiyong Wang, Zhiqiang Yu, Yue Zhang, Yulong Wang, Hengli Liu   +5 more
doaj   +1 more source

The equilibrium of cloud manufacturing system under cost uncertainty

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2017
In this paper, we explore the equilibrium problem of cloud manufacturing system (CMfgS) with cost uncertainty. We propose a CMfgS supernetwork model in which decision-makers (resource service providers (RSPs), the agent and resource service demanders ...
Wei GUO, Wei PENG, Lei WANG
doaj   +1 more source

Efficacy and Safety Analysis of Roxarestat in Regulating Renal Anemia in Patients on Maintenance Hemodialysis

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Objective To compare the efficacy and safety of roxarestat versus recombinant human erythropoietin (rhEPO) in the management of renal anemia in patients undergoing maintenance hemodialysis. Methods This was a prospective, open‐label, randomized controlled trial.
Lingling Chen, Junjie Zhu, Qiaonan Ge
wiley   +1 more source

Deployment Dynamic Modeling and Driving Schemes for a Ring-Truss Deployable Antenna

Chinese Journal of Mechanical Engineering
Mesh reflector antennas are widely used in space tasks owing to their light weight, high surface accuracy, and large folding ratio. They are stowed during launch and then fully deployed in orbit to form a mesh reflector that transmits signals.
Baiyan He, Lijun Jia, Kangkang Li, Rui Nie, Yesen Fan, Guobiao Wang   +5 more
doaj   +1 more source

A Low-Energy Consumption Planning Method for Multi-Locomotion Wheel-Legged Mobile Robots

Machines
Mobile robots can replace humans to fulfill tasks in dangerous environments, which has been a research focus in recent years. This paper proposes a wheel-legged mobile robot with multi-locomotion and a low-energy consumption planning method.
Jinfu Li, Yongxi Liu, Ze Yu, Yuntao Guan, Yingzhuo Zhao, Zheming Zhuang, Tao Sun   +6 more
doaj   +1 more source

Reinforcement mechanism design [PDF]

Proceedings of the Twenty-Sixth International Joint Conference on Artificial Intelligence, 2017
We put forward a modeling and algorithmic framework to design and optimize mechanisms in dynamic industrial environments where a designer can make use of the data generated in the process to automatically improve future design. Our solution, coined reinforcement mechanism design, is rooted in game theory but incorporates recent AI techniques to get rid
openaire   +1 more source

Therapeutic Apheresis for Intravenous Methylprednisolone‐Refractory Neuromyelitis Optica Spectrum Disorder: Clinical and Radiological Outcomes in a Single‐Center Case Series

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Neuromyelitis optica spectrum disorder (NMOSD) is a relapsing autoimmune disease of the central nervous system. High‐dose intravenous methylprednisolone (IVMP) is the standard first‐line therapy for acute attacks, although some patients remain refractory.
Wataru Horiguchi, Daisuke Katagiri, Takeyuki Watadani, Shunichi Matsuda, Hiroshi Kaneko, Noritoshi Arai   +5 more
wiley   +1 more source