Results 21 to 30 of about 311,393 (243)
Multi-Objective Optimization of Drilling Trajectory Considering Buckling Risk
Applied Sciences, 2022 Directional drilling involves three sections—vertical, curved, and horizontal—and is used for drilling offshore wells and mining unconventional resources.
Jiho Jeong +4 more
doaj +1 more source
Tribology Online, 2016 In the automotive industry one of the crucial issues is reduction of CO2 emission to protect environment. A lot of researches have been done to reduce the CO2 emission of cars by improving efficiency of engine and engine parts or lowering the weight ...
Shahjada Ahmed Pahlovy +4 more
doaj +1 more source
Flexible conformable hydrophobized surfaces for turbulent flow drag reduction [PDF]
, 2015 In recent years extensive work has been focused onto using superhydrophobic surfaces for drag reduction applications. Superhydrophobic surfaces retain a gas layer, called a plastron, when submerged underwater in the Cassie-Baxter state with water in ...
Fairhurst, David +5 more
core +1 more source
Drag Torque and Synchronization modelling in a Dual Clutch Transmission [PDF]
, 2018 Noise, vibration and harshness (NVH) is a big consideration in the automotive industry. In order to create an as pleasant driving experience as possible for the driver, NVH should be minimized. One of the sources of NVH comes from the transmission due to
Medleri Hire Math, Keerthi
core +2 more sources
Platform, a Journal of Engineering, 2020 Different locations and field conditions require various drilling methods to produce oil and gas. Three major operational methods are identified to be slim holes, conventional and casing drilling.
Davood Zivar +3 more
doaj
Frontiers in Energy Research, 2023 Wind power generation is considered an effective way for ships to harness wind energy, and the aerodynamic characteristics of wind turbines determine wind energy utilization and efficiency.
Huawu Zhang, Yihuai Hu
doaj +1 more source
Research on the aerodynamic characteristics of a lift drag hybrid vertical axis wind turbine
Advances in Mechanical Engineering, 2016 Compared with a drag-type vertical axis wind turbines, one of the greatest advantages for a lift-type vertical axis wind turbines is its higher power coefficient ( C p ).
Xiaojing Sun +5 more
doaj +1 more source
Research on drivability control in P2.5 hybrid system
Energy Reports, 2021 The control of drivability in this paper contains the clutch start, the engine and motor anti-jerk control during tip in and tip out. First, the fast clutch start is divided into five phases as well as the smooth clutch start: the gear selection phase ...
Junchao Jing +5 more
doaj +1 more source
Torque ripple reduction of a direct-drive permanent-magnet synchronous machine by material-efficient axial pole pairing [PDF]
, 2011 This paper investigates a material-efficient axial pole pairing method for torque ripple reduction in a direct-drive outer-rotor surface-mounted permanent-magnet synchronous machine.
Patrick Chi-Kwong Luk +3 more
core +1 more source
Advances in Sustainable and Wearable Textile Based Soft Robotics
Advanced Functional Materials, EarlyView.This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas +6 more
wiley +1 more source