Results 61 to 70 of about 188,421 (295)

Analisa dan Simulasi Gaya Potong pada Proses Machine Drilling dengan Menggunakan Software Ansys [PDF]

, 2013
Drilling process is a cutting metal process with multiple point cutting are used to make cylindrical holes. The process parameters used in drilling process are cutting speed, feed rate and depth of cut.
Rahman, M. I. (Muhammad), Setiawan, L. F. (Listy), Shofa, A. N. (Ahmad)   +2 more
core  

Effect of drill speed on the strain distribution during drilling of bovine and human bones [PDF]

, 2018
Drilling is an operation commonly required in orthopaedic surgery for insertion of screws and internal fixation of bone fractures. Induced damage is one of the undesired effects of drilling mainly due to the use of inadequate drilling parameters.
Dias, Maria Isabel Ribeiro, Fernandes, M.G.A., Fonseca, E.M.M., Jorge, Renato N., Manzanares, Cristina   +4 more
core   +1 more source

Interactions between Molten High‐Silicon Electrical Steels and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
This study examines how several molten high‐silicon electrical steels interact with both conventional and recycled MgO–C refractories. For this, various immersion experiments are conducted. In addition to infiltration, a number of mechanisms are identified and explained that control the corrosion of the refractory material.
Lukas Neubert, Matheus Roberto Bellé, Anton Yehorov, Anhelina Mospan, Till M. J. Stadtmüller, Seetharaman Sridhar, Christos G. Aneziris, Olena Volkova   +7 more
wiley   +1 more source

Multi-parameter while-drilling monitoring experiment of loaded coal and while-drilling outburst prediction method

Meitan xuebao
The prediction results of coal and gas outburst are directly related to the safe mining of coal seams and the scientific implementation of outburst prevention measures.
Longyong SHU, Zhendong YAN, Zhengshuai LIU, Wenming RAO, Yang LI, Yongqian LIU   +5 more
doaj   +1 more source

Can Ti‐Based MXenes Serve as Solid Lubricants for Brake Applications? A Tribological Study

Advanced Engineering Materials, EarlyView.
This study explores the first implementation of Ti‐based MXenes materials in brake pad friction composite material. The resulting composite material exhibits a 48% reduction in the wear rate; alongside significant improvements are observed for thermal and mechanical properties.
Eslam Mahmoud, Jakob Gruber, Hakan Göçerler, Pierluigi Bilotto, Christian Gierl‐Mayer, Elham Loni, Michael Naguib, Carsten Gachot   +7 more
wiley   +1 more source

Design and Experiments of Directional Core Drilling Tool

Applied Sciences
In the coring process of ocean drilling, conventional vertical holes face many difficulties, such as the high cost of single holes and limited acquisition of geological information, which cannot meet the demand for fine delineation of strata around drill
Yingli Wang, Xiaoyang Li, Yinlong Ma, Shanshan Shi, Qingquan Zhou, Jiabao Chou, Junda Chen   +6 more
doaj   +1 more source

A New Method for Determining the Spatial Distribution Law of Rock Anti-Drilling Characteristics

Shiyou jixie, 2021
When the existing method for determining the distribution laws of rock anti-drilling characteristics is adopted, the rock anti-drilling characteristics at the same depth are not distributed continuously and the spatial distribution laws of rock anti ...
Hu Pengjie, Li Zhonghui, Jiang Zhanfeng, Lou Yishan, Yang Minghe, Zhang Yan   +5 more
doaj  

Real-time evaluation of the dynamic Young’s modulus for composite formations based on the drilling parameters using different machine learning algorithms

Frontiers in Earth Science, 2022
The dynamic Young’s modulus (Edyn) is a parameter needed for optimizing different aspects related to oil well designing. Currently, Edyn is determined from the knowledge of the formation bulk density, in addition to the shear and compressional velocities,
Ahmed Abdulhamid Mahmoud, Hany Gamal, Salaheldin Elkatatny, Weiqing Chen   +3 more
doaj   +1 more source

Research on PDC drilling parameter optimization based on dynamic drilling strategy

E3S Web of Conferences, 2023
Drilling parameters optimization is very important for practical engineering drilling, and the rationality of the selected optimization mode directly affects the accuracy of the parameters obtained. The maximum bit performance curve which can reflect the relationship between the depth reached by a single bit and the maximum drilling speed is introduced,
Zhou Dong, Li Jiyang, Xu Haitao
openaire   +2 more sources

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source