Results 131 to 140 of about 274,489 (274)

Reduction, Softening, and Melting Characteristics of Mill Scale‐Based Briquettes for Blast Furnace Ironmaking

steel research international, EarlyView.
The study evaluates mill scale‐based briquettes, which meet industrial standards for shatter strength and exhibit a low decrepitation index. Despite their limited reducibility in nonisothermal reduction experiments, softening and melting results indicate potential application as a substitute for conventional acidic iron‐bearing materials for use in ...
Ismael Vemdrame Flores, Paula Maria Gomes Cunha Leão, João Victor Souza Alves, Otávio Henrique Matos de Assis, Maurício Covcevich Bagatini   +4 more
wiley   +1 more source

Fabrication of Carbon Nanotube/SiO₂and Carbon Nanotube/SiO₂/Ag Nanoparticles Hybrids by Using Plasma Treatment

Nanoscale Research Letters, 2009
Based on plasma-treated single wall carbon nanotubes (SWCNTs), SWCNT/SiO2and thiol groups-functionalized SWCNT/SiO2hybrids have been fabricated through a sol–gel process.
Li Haiqing, Ha Chang-Sik, Kim Il
doaj   +1 more source

Double Slag Operating Standard for Mitigation of CO2 Emissions in Basic Oxygen Steelmaking

steel research international, EarlyView.
Basic oxygen furnace (BOF) steelmaking uses a double slag process (DSP) to produce low‐phosphorus steel. To reduce carbon emissions in a BOF, the hot metal ratio (HMR) must be lowered. The present article describes the optimal conditions for DSP operations under low‐HMR conditions: temperature of 1360 ± 5 °C, total Fe content of 10 ± 2 wt%, basicity (=
Kyung Hwan Kim, Joo Hyun Park
wiley   +1 more source

Modeling the Thermal Properties of Hydrogen‐Based Direct Reduced Iron Using Computational Thermodynamics and Machine Learning

steel research international, EarlyView.
Hydrogen‐based direct reduced iron (H‐DRI) melts differently from scrap and carbon‐bearing DRI. This work combines differential scanning calorimetry experiments, FactSage thermodynamics, and simple composition‐based regression to predict solidus, liquidus, heat capacity, and enthalpy for H‐DRI.
Ankur Agnihotri, Petri Sulasalmi, Pasquale Cavaliere, Ville‐Valtteri Visuri   +3 more
wiley   +1 more source

Agglomeration Behavior of Nonmetallic Particles on the Surface of Si‐Killed Liquid Steel Using HT‐CSLM: An In Situ Investigation

steel research international, EarlyView.
The in situ agglomeration behavior of semisolid Al–silicate inclusions in Si‐killed steel is studied using high‐temperature confocal scanning laser microscopy. Particle motion and interparticle forces at the steel/argon interface are quantified and compared with a modified capillary interaction model.
Suwam Kumar, Muhammad Nabeel, Angshuman Podder, Andre B. Phillion, Neslihan Dogan   +4 more
wiley   +1 more source

Gatekeeping harm reduction in Canadian Federal Prisons: Perspectives on the threat risk assessment for the prison needle exchange program by prison administrative leadership

Addiction, EarlyView.
Abstract Background and aims Prison needle exchange programs (PNEPs) are evidence‐based, cost‐effective interventions that prevent transmission of blood‐borne viruses. PNEPs were introduced in a minority of Canadian federal prisons in 2018; however, participation is contingent on a mandatory approval process known as a “Threat Risk Assessment” (TRA ...
Nadine Kronfli, Nashira Popovic, Elise Weiss, Mark Stoové, Lise Lafferty, Olivia Price, Lynn M. Madden, Behzad Hajarizadeh, Andrew R. Lloyd, Frederick L. Altice   +9 more
wiley   +1 more source

Revisiting educational assumptions: The surprising negative link between creative extracurricular activities and creative thinking in PISA 2022

British Journal of Educational Psychology, EarlyView.
Abstract Background While skill development is generally linked to relevant practice, the 2022 PISA creative thinking report revealed a negative association between students' creative thinking performance and their engagement in creative activities. Aims This study explored whether this negative association was linear, persisted across countries and ...
Sofiia Kagan, Denis Dumas, Yoojoong Kim
wiley   +1 more source

Unravelling the evolution of the Frébouge polygenetic cone in Val Ferret (Mont Blanc Massif)

Boreas, EarlyView.
Proglacial settings in the Alps are typically polygenetic, often characterized by a complex and discontinuous interplay between glacial, fluvial and gravitational processes. These processes yield high volumes of sediments, which usually exceed their transportation capacity.
Catharina Dieleman, Philip Deline, Susan Ivy Ochs, Patricia Hug, Jordan Aaron, Marcus  Christl, Naki Akçar   +6 more
wiley   +1 more source

Garnet–Clinopyroxene Double‐Layered Coronae in a Metagabbronorite From the High‐Grade Metamorphic Gföhl Unit, Moldanubian Zone

Journal of Metamorphic Geology, EarlyView.
ABSTRACT This study investigates garnet–clinopyroxene double‐layered coronae in a metagabbronorite from the high‐grade metamorphic Gföhl Unit (Bohemian Massif). The coronae formed at the interfaces between relic magmatic orthopyroxene, still preserved in the cores of the coronae, and the plagioclase‐rich rock matrix.
Rene Asenbaum, Tereza Nemeškalová, Martin Racek, Vojtěch Janoušek, Julian Portenkirchner, Rainer Abart   +5 more
wiley   +1 more source

Sleep Across the Pandemic in Norwegian University and College Students: A National Repeated Cross‐Sectional Analysis (2010–2023)

Journal of Sleep Research, EarlyView.
ABSTRACT Sleep problems are increasingly common among students in higher education, but long‐term trajectories before, during and after the COVID‐19 pandemic remain poorly described. We analysed population‐level surveillance data from the Students' Health and Wellbeing Study conducted in Norway in 2010, 2014, 2018, 2021, 2022 and 2023, including nearly
Børge Sivertsen, Allison G. Harvey, Øystein Vedaa, Ståle Pallesen, Mari Hysing   +4 more
wiley   +1 more source