Results 131 to 140 of about 295,815 (353)
Modern methods in boring technology.
, 2009 overview modern methods in boring work, boring machines, tools, trade off, cutting conditions, liquidy, confrontation to methods finishing cut ...
Štábl, Martin
core +1 more source
Advanced Materials, EarlyView.Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu +3 more
wiley +1 more source
Scientific ReportsThis article is based on the large-section quasi-rectangular shield tunnel project of Zhengzhou Metro Line 8 in a water-rich sandy stratum. It systematically analyzes the deformation characteristics of existing underground pipelines and power-tunnels ...
Shi-ju Ma +5 more
doaj +1 more source
Research on Prediction of EPB Shield Tunneling Parameters Based on LGBM
BuildingsAt present, the determination of tunnel parameters mainly rely on engineering experience and human judgment, which leads to the subjective decision of parameters and an increased construction risk.
Wei Wang +4 more
doaj +1 more source
Advanced Materials, EarlyView.Magnetic doping of the topological insulator Bi2Te3 with erbium adatoms induces out‐of‐plane magnetism and breaks time‐reversal symmetry, opening a Dirac gap and driving a Fermi surface transition from hexagonal to star‐of‐David geometry. Microscopy, spectroscopy, and magnetic dichroism reveal atomically controlled magnetic interactions that tailor the
Beatriz Muñiz Cano +18 more
wiley +1 more source
Experimental research of console boring bars oscillations upon fine stepped holes boring
Trudy Odesskogo Politehničeskogo Universiteta, 2020 Fine boring is a common way of finishing edge processing. Upon boring stepped hole, on practice it is necessary to design and produce special stepped console boring bars or multi-edged heads.
Олександр Андрійович Оргіян +3 more
doaj
Advanced Materials, EarlyView.The water permeability of amorphous carbon dots (CDs) is demonstrated by investigating their plasticization. Novel polyamide‐based and amorphous nanoparticles are synthesized by controlling their inner packing density. Water plasticization is evidenced by the decrease of the CDs glass transition temperature with increasing the hydration degree.
Elisa Sturabotti +8 more
wiley +1 more source
Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics
Advanced Materials, EarlyView.The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades +7 more
wiley +1 more source
Research Progress and Application of Vibration Suppression Technologies for Damped Boring Tools
MachinesDeep hole structures are widely used in the fields of aerospace, engineering machinery, marine, etc. During the deep hole machining processes, especially for boring procedures, the vibration phenomenon caused by the large aspect ratio of boring tools ...
Han Zhang +5 more
doaj +1 more source