Advanced Functional Materials, EarlyView.In situ TEM uncovers the atomic‐scale mechanisms underlying hydrogen‐driven γ‐Fe2O3→Fe3O4→FeO reduction. In γ‐Fe2O3, oxygen vacancies cluster around intrinsic Fe vacancies, leading to nanopore formation, whereas in Fe3O4, vacancy aggregation is suppressed, preserving a dense structure.
Yupeng Wu +14 more
wiley +1 more source
Combined Theoretical and Experimental Analysis of Mechanical Rock Salt Cutting and Cutting Tool Characteristics [PDF]
Annals of the University of Petroşani. Mechanical EngineeringThis paper investigates the mechanical cutting of rock salt with the aim of determining the cutting characteristics relevant to the optimization of cutting machine performance.
Andrei Andraș +2 more
doaj +2 more sources
Impact study of the distribution of cemented carbide on reinforced surfaces of samples of the crown bits of the rock drilling bits on the nature of their wear [PDF]
, 2014 В процесі буріння шарошковими долотами внаслідок зношування та затуплення породоруйнівних елементів має місце суттєве падіння механічної швидкості буріння.
Odosij, Z. +7 more
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Fracture Mechanics Characterization of an AnisotropicGeomaterial [PDF]
, 2012 Argillites are considered worldwide as potential host rock for high level radioactive waste given the low permeability and strong adsorption potential.
Barpi, Fabrizio +4 more
core +1 more source
Advanced Functional Materials, EarlyView.Inspired by octopuses, actuating legs based on soft materials are fabricated with programmed chiroptical properties and mechanical behaviors to achieve dynamic color modulation and reversible shape morphing, and these legs are developed into a modular OCTOID system.
Seung Hui Han +8 more
wiley +1 more source
Shiyou jixie, 2021 The deep and complex formations in oil and gas exploration and development have the characteristics of high pore pressure, high temperature, high rock hardness, strong plasticity and poor drillability, which have brought many challenges to drilling ...
He Zhenguo +5 more
doaj
English for Study and Work: Coursebook in 4 books. Book 2 Obtaining and Processing Information for Specific Purposes [PDF]
, 2015 Подано всі види діяльності студентів з вивчення англійської мови, спрямовані на розвиток мовної поведінки, необхідної для ефективного спілкування в академічному та професійному середовищах.
Зуенок, И. И. +15 more
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Colloidal Crack Sintering Lithography for Light‐Induced Patterning of Particle Assemblies
Advanced Functional Materials, EarlyView.Colloidal crack sintering lithography (CCSL) is a microfabrication technique that uses light‐induced photothermal heating to trigger sintering and controlled cracking in polymer colloidal assemblies. Local structural changes generate microchannels and patterns, enabling direct writing of diverse topographic motifs.
Marius Schoettle +2 more
wiley +1 more source
Analysis and construction of the coal and rock cutting state identification system in coal mine intelligent mining. [PDF]
Sci Rep, 2023 Zhang M, Zhao L, Shi B.
europepmc +1 more source
An enhanced classification of artificial ground [PDF]
, 2010 This report describes a detailed scheme for the mapping and recording of artificial ground. It presents codes and descriptions that underpin the entries in the British Geological Survey stratigraphical ...
Cooper, A.H. +4 more
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