Results 81 to 90 of about 4,548 (235)

Key Technology for Drilling Speed and Efficiency Improvement on Chenghai 2-2 Artificial Island of Dagang Oilfield

Shiyou jixie, 2019
To address the problems of difficult trajectory control, high torque and drag and serious regional lost circulation on Bohai 2-2 artificial island of Dagang Oilfield, based on the analysis of drilling difficulties, targeting the well trajectory control ...
Wang Jianlong, Xu Jingguo, Du Qiang, Jin Haifeng, Cheng Dong, Zheng Feng, Li Ruiming   +6 more
doaj  

Development of High Efficiency Dog Clutch with One-Way Mechanism for Stepped Automatic Transmissions

International Journal of Automotive Engineering, 2019
In order to reduce drag losses and a clutch actuator load, the new dog clutch system for stepped automatic transmission is developed. Transmitting torque is converted to the engaging force because rotating shaft and dog clutch are connected with the ...
Isamu Shiotsu, Hirofumi Tani, Masanobu Kimura, Yu Nozawa, Atsushi Honda, Motoki Tabuchi, Hirotsugu Yoshino, Kentaroh Kanzaki   +7 more
doaj   +1 more source

Microrobotic Catheterization of the Ophthalmic Artery for Targeted Treatment of Retinoblastoma

Advanced Intelligent Systems, EarlyView.
A microrobotic platform is presented that allows teleoperated and autonomous navigation of flow‐driven magnetic microcatheters, MagFlow, into the ophthalmic artery for superselective intra‐arterial infusion of chemotherapy to treat retinoblastoma. Extensive benchtop validations with patient‐derived biomimetic phantoms under optical and fluoroscopic ...
Artur Banach, Mehdi Krichen, Julian Raub, Christina Stathopoulos, Bruno Bartolini, Mahmut Selman Sakar   +5 more
wiley   +1 more source

EMG‐Driven Telemetry and Inference System for Fish: Pose Reconstruction and Flow Sensing

Advanced Intelligent Systems, EarlyView.
This work introduces an electromyography (EMG)‐driven telemetry framework that reconstructs body pose and infers hydrodynamic conditions in freely swimming fish. A custom 16‐channel archival system records intramuscular EMG, enabling deep‐learning models to decode joint kinematics, classify flow regimes, and reveal channel‐efficient sensing strategies.
Rahdar Hussain Afridi, Waqar Hussain Afridi, Muhammad Hamza, Ahsan Tanveer, Mingxin Wu, Xingwen Zheng, Liang Li, Guangming Xie   +7 more
wiley   +1 more source

Analysis of Drag Torque Characteristic of Hydro-viscous Clutch with Consideration of Cavitation Effect

Jixie chuandong, 2018
In order to accurately predict the internal flow field and drag torque characteristics of the hydro-viscous clutch,with the flow field of double circular groove clearance as the research object,based on the principle of hydrodynamics and the Newtonian ...
Sun Chunlian
doaj  

Towards Advanced Intelligent and Perceptive Soft Grippers

Advanced 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, Hayeon Shin, Seik Park, Changbeom Shim, Seonggun Joe   +4 more
wiley   +1 more source

System Identification of Robotic Fish Swimming Reveals Roles of Reactive and Resistive Fluid Force in Two Distinct Swimming Gaits

Advanced Intelligent Systems, EarlyView.
System identification and particle image velocimetry reveal how a modular robotic fish changes thrust physics across gaits. A traveling‐wave, fish‐like motion draws thrust from resistive drag, while a resonant standing‐wave motion is driven by reactive pressure.
Donghao Li, Hankun Deng, Kundan Panta, Azar Panah, Bo Cheng   +4 more
wiley   +1 more source

Liquid Jetting‐Based Miniature Robotic Navigation in Confined Fluidic Spaces

Advanced Intelligent Systems, EarlyView.
We introduce a new class of liquid‐jetting‐based miniature robots (JetBots) ranging in size from mm‐to‐cm, featuring a unified approach in design, fabrication, and actuation. They demonstrate fast locomotion (30.3 cm/s), rapid steering (648.8°/s), and diverse functions, such as puncturing soft materials and unlimited cargo sampling and delivery, paving
Debasish Roy, Tianlu Wang
wiley   +1 more source

Torque-adaptive resistance-reducing shoveling strategy for loaders

Ain Shams Engineering Journal
The time-varying working resistance encountered during the loader shoveling stage constitutes a major contributor to power dissipation. The physical properties of materials are different during shoveling operation, bringing challenges to reducing drag in
Bingwei Cao, Ruiqiang Guo, Dehao Zhao, Qinghua Li, Xinhui Liu   +4 more
doaj   +1 more source

Drag, lift and torque coefficients for ellipsoidal particles

, 2013
In this work, we want to verify the ability of the CFD code Ansys Fluent© to give an accurate prediction of hydrodynamic forces acting on non-spherical (Ellipsoids). We focus the present study only on the drag and lift forces and also on the pitching torque.
Khalij, Mohammed, Ouchene, R, Tanière, A, Arcen, B   +3 more
openaire   +1 more source