Results 61 to 70 of about 4,972 (256)
Journal of Engineering, 2018 Drilling tools or drilling pipes, such as drill bit and mill drill, are often subjected to various forces, including essentially tangential forces, centered on their axis of rotation.
Luc Leroy Mambou Ngueyep +3 more
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Advanced Materials, EarlyView.The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj +8 more
wiley +1 more source
Hydraulic Drilling Nozzle Design and Research
InventionsIn light of the European Union’s zero-emissions policy and the growing demand for energy associated with technological advances, it is necessary to consider adopting technologies and innovative solutions that simultaneously reduce greenhouse gas ...
Przemysław Toczek +3 more
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Method of Hole Shrinkage Radial Forces Measurement in Ti6Al4V Drilling
Procedia CIRP, 2017 Abstract This work deals with the phenomenon of hole shrinkage during Ti6Al4V drilling. Indeed, the shape and dimensions of the drilled hole, as well as the heat generated by the operation depend on this phenomenon which is caused by multiple factors, including the relaxation of internal residual stresses, thermal expansion and diverse ...
MERZOUKI, Johan +4 more
openaire +2 more sources
Advanced Materials, EarlyView.A scalable bottom‐up CVD methodology, based on liquid transition metal salt precursors, is presented for the controlled growth of two high‐quality MoSe2–WSe2 heterostructures (HSs): purely lateral (HS I) and hybrid lateral/vertical (HS II), by simply adjusting precursor concentration.
Md Tarik Hossain +16 more
wiley +1 more source
Escaping the Scaling Relationships in Oxygen Reduction Catalysis: Implications for PEM Fuel Cells
Advanced Materials, EarlyView.Escaping the scaling relationships of the oxygen reduction reaction is vital for hydrogen fuel cells. This outlook examines how interfacial heterogeneity, spanning the subsurface lattice, chemisorption layer, and near‐interface solvation volume, mechanistically decouples intermediate binding energetics.
Muhammad Bilal Wazir +2 more
wiley +1 more source
VibrationVibration loads during deep drilling are one of the main causes of reduced service life of drilling tools and emergency failure of downhole motors. This work investigates the adaptive operation of an original elastic element based on an open cylindrical ...
Andrii Velychkovych +2 more
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Development and Application of a Gyro Steady-State Drilling Tool
Shiyou jixie, 2023 Due to the formation heterogeneity,unsteady pump rate,high weight on bit and fast rotation,drill strings are associated with multiple kinds of vibration.Severe vibration accelerates the bit failure,increases the tripping operations,and thus impacts the ...
Meng Xiangbo
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Sustainable and Multifunctional Natural Macromolecular Polymers for Aqueous Zn Metal Batteries
Advanced Materials, EarlyView.We comprehensively review the structure‐function relationships and regulatory mechanism of natural macromolecular polymers in stabilizing zinc anodes at the microscopic and mesoscopic scales. The interactions among polymer structures, optimization strategies, and regulatory mechanisms are discussed systematically summarizing recent related research ...
Yunuo Shi +13 more
wiley +1 more source
EFFECT OF DRILLING OPERATION DYNAMICS ON DEEP HOLE ACCURACY
Вестник Донского государственного технического университета, 2018 Radial non-linear dynamic performance of drilling operation on various stages is considered. Effect of some factors on non-linear dynamic performance is analysed.
Vitaly S. BYKADOR
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