Results 101 to 110 of about 193,780 (356)

Test-Bed Performance of an Ice-Coring Drill Used with a Hot Water Drilling System

Journal of Marine Science and Engineering, 2019
Ice cores from ice shelves contain abundant paleoclimatic information and provide essential information concerned with the prediction of future climatic change and global sea level variations.
An Liu, Rusheng Wang, Xiaopeng Fan, Yang Yang, Xingchen Li, Liang Wang, Pavel Talalay   +6 more
doaj   +1 more source

A parametric study for the design of an optimized ultrasonic-percussive planetary drill tool [PDF]

, 2016
Traditional rotary drilling for planetary rock sampling, in situ analysis, and sample return are challenging because the axial force and holding torque requirements are not necessarily compatible with lightweight spacecraft architectures in low-gravity ...
Harkness, Patrick, Li, Xuan, Lucas, Margaret, Timoney, Ryan, Worrall, Kevin   +4 more
core   +1 more source

An Experimental High‐Throughput Approach for the Screening of Hard Magnet Materials

Advanced Engineering Materials, EarlyView.
An entire workflow for the high‐throughput characterization and analysis of compositionally graded magnetic films is presented. Characterization protocols, data management tools and data analysis approaches are illustrated with test case Sm(Fe, V)12 based films.
William Rigaut, Pierre Le Berre, Hamdi Jaballah, Lukas Fink, Victor Poline, Richard Haettel, Stéphane Grenier, Gilbert Chahine, Ewen Bellec, Guillaume Buatier, Wilfried Hortschitz, Santa Pile, Thomas Schrefl, Nils Blanc, Yuan Hong, Thibaut Devillers, Nora M. Dempsey   +16 more
wiley   +1 more source

A review on the rotary ultrasonic machining of advanced ceramics [PDF]

, 2008
Advanced ceramics are likely candidates for many industrial applications due to their superior properties. However, their high machining costs lead to limited applications.
Hamzah, Esah, Khoo, C. Y., Sudin, Izman
core  

Fatigue evaluation in maintenance and assembly operations by digital human simulation [PDF]

, 2010
Virtual human techniques have been used a lot in industrial design in order to consider human factors and ergonomics as early as possible. The physical status (the physical capacity of virtual human) has been mostly treated as invariable in the current ...
A Garg, A Hill, A Ren, AR Tilley, B Witmer, Bo Hu, D Anderson, D Chaffin, D Chaffin, D Roman-Liu, D Wood, Damien Chablat, DB Chaffin, Fouad Bennis, François Guillaume, G Chryssolouris, G Li, H Bubb, H Hou, H Iridiastadi, H Sato, I Ben-Gal, J Ding, J Fuller, J Liu, J Ritchie, J Yang, K El ahrache, K El ahrache, L Ma, Liang Ma, M Damsgaard, NI Badler, P Chedmail, S Mathiassen, T Komura, T Xia, W Khalil, W Rohmert, Wei Zhang, Y Arzi, Y Chen, Y Giat   +42 more
core   +5 more sources

Tuning the Dielectric Properties of Individual Clay Nanosheets by Interlayer Composition: Toward Nano‐Electret Materials

Advanced Functional Materials, EarlyView.
The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich, Paul Markus, Matthias Stöter, Bernhard Biersack, Rainer Schobert, Josef Breu, Georg Papastavrou   +6 more
wiley   +1 more source

Influence of the Drilling Parameters in the Single-Lip Deep-Hole Drilling Process on the Surface Integrity of Nickel-Based Alloy

Machines
Single-lip deep-hole drilling is a key technology for the precision machining of high-temperature nickel-based alloy pore structures in aero engines.
Tao Wu, Fangchao Zhang, Haoguang Zhou, Dong Zhang   +3 more
doaj   +1 more source

Full and half-wavelength ultrasonic percussive drills [PDF]

, 2018
Ultrasonic-percussive drills are a leading technology for small rock drilling applications where power and weight-on-bit are at a premium. The concept uses ultrasonic vibrations to excite an oscillatory motion in a free-mass, which then delivers ...
Harkness, Patrick, Li, Xuan, Lucas, Margaret   +2 more
core   +1 more source

Electroactive Metal–Organic Frameworks for Electrocatalysis

Advanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska, Yutong Luo, Ruyan Zhao, Jianjun Zhang, Mingchao Wang, Xinliang Feng, Eike Brunner, Stefan Kaskel   +7 more
wiley   +1 more source

Numerical Simulation on Dynamic Response of Drilling Parameters in Loaded Rock Mass

Applied Sciences
The characterization of the mechanical parameters of rock mass is a basic problem in the field of rock mechanics, and it is also an important basis for surrounding rock classification, stability analysis, and support design in underground engineering ...
Yujing Jiang, Zongmeng Bai, Decheng Ge, Jiankang Liu, Hengjie Luan, Yining Zheng   +5 more
doaj   +1 more source