Results 61 to 70 of about 4,689,593 (329)

Optimization of Drilling Parameters in Natural Fibers Composite Plates Based on Grey Relational Analysis

Journal of Natural Fibers
This study focuses on optimizing drilling parameters to minimize delamination, circularity error, and cylindricity in natural fiber composites through a comprehensive full factorial Design of Experiments (DoE) combined with Grey Relational Analysis (GRA).
Mustapha Arslane, Mohamed Slamani, Abdelmalek Elhadi, Salah Amroune, Ahmed Belaadi, Ibrahim M.H. Alshaikh, Djamel Ghernaout   +6 more
doaj   +1 more source

Study on Bottom Hole Assembly and Drilling Parameter Optimization for Reaming While Drilling

Shiyou jixie, 2021
Domestic studies on bottom hole assembly(BHA)and drilling parameter optimization for reaming while drilling(RWD)are lack of the calculation model which considers three influence factors(i.e., geometric configuration of pilot bit and reamer, formation ...
Zhang Jiawei, Ji Guodong, Guo Weihong, Wang Haigei, Cui Meng, Hui Cheng   +5 more
doaj  

Optimization of High Temperature-Resistant Modified Starch Polyamine Anti-Collapse Water-Based Drilling Fluid System for Deep Shale Reservoir

Molecules, 2022
During drilling in deep shale gas reservoirs, drilling fluid losses, hole wall collapses, and additional problems occur frequently due to the development of natural fractures in the shale formation, resulting in a high number of engineering accidents ...
Xiangwei Kong, Mingzhong Chen, Chaoju Zhang, Zuocai Liu, Yanxin Jin, Xue Wang, Minggang Liu, Song Li   +7 more
semanticscholar   +1 more source

Synchrotron Radiation for Quantum Technology

Advanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader, Sakura Pascarelli, Klaus Attenkofer, Anna A. Makarova, Karsten Holldack, Kai Rossnagel, Kristiaan Temst, George Kourousias, Stefano Carretta, Caterina Biscari, Helmut Dosch   +10 more
wiley   +1 more source

A stochastic model for drilling optimization

Mathematical and Computer Modelling, 1999
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Liu, Yang, Chen, G.
openaire   +1 more source

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

Advanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong, Changfan Xu, Huaping Zhao, Yong Lei   +3 more
wiley   +1 more source

Development of Automatic Electric Drive Drilling System for Core Drilling

Applied Sciences, 2023
Core drilling has been widely used in mineral exploration with diamond-impregnated drilling technology. Automation is a critical technology in improving core drilling efficiency and reducing core drilling costs, but there is no complete automation that ...
Zheng Zhou, Yuanbiao Hu, Baolin Liu, Kun Dai, Yudong Zhang   +4 more
doaj   +1 more source

Enhancing Direct Solar Water Splitting via ALD of Multifunctional TiO2/Pt Nanoparticle Coatings With Engineered Interfaces to GaAs/GaInP Tandem Cells

Advanced Functional Materials, EarlyView.
Multifunctional atomic layer deposited coatings and interface treatments enhance direct solar water splitting on GaAs/GaInP tandem cells. Optimized TiO2/Pt nanoparticle bilayers ensure durability and catalytic efficiency with minimal optical losses, while H2 plasma pretreatments maximize photovoltage and interfacial charge extraction.
Tim F. Rieth, Verena Streibel, Oliver Bienek, Sergej Levashov, Johannes Dittloff, Kristof Möller, Johanna Eichhorn, Matthias M. May, Ian D. Sharp   +8 more
wiley   +1 more source

Optimization Design of Horizontal Well Track Using Seismic Interpretation Data

Shiyou jixie, 2016
In conventional track optimization methods,the minimum drilling footage (track length) is used as the core objective function to realize the fastest drilling with the lowest cost.It is hard to achieve the optimization goal without considering spatial ...
Geng Zhi, Chen Mian, Jin Yan, Fang Xin, Jing Ning   +4 more
doaj  

APPLICATION OF MATHEMATICAL DRILLING MODEL ON SOUTHERN IRAQI OIL FIELDS

Journal of Engineering, 2008
Minimum-cost well drilling demands the best use of controllable drilling variables for each formation to be drilled. To reach this aim, this study was divided into two main parts: The first part deals with applying a mathematical drilling model to field
Sameera M. Hamad-Allah, Ali A. Ismael
doaj   +1 more source