Results 51 to 60 of about 3,903,389 (261)

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

Machine learning predicts lung recruitment in acute respiratory distress syndrome using single lung CT scan

open access: yesAnnals of Intensive Care, 2023
Background To develop and validate classifier models that could be used to identify patients with a high percentage of potentially recruitable lung from readily available clinical data and from single CT scan quantitative analysis at intensive care unit ...
Francesca Pennati   +6 more
doaj   +1 more source

The PRIMA Thesaurus for Materials Science and Engineering

open access: yesAdvanced Engineering Materials, EarlyView.
The PRIMA Thesaurus is a structured vocabulary designed to improve how materials science data is described and shared. Developed with input from multiple experts, it enables clear documentation of research workflows, data exchange, and reuse across platforms.
Rossella Aversa   +8 more
wiley   +1 more source

Impact of Industry-Specific Risk Factors on Stock Returns of the Malaysian Oil and Gas Industry in a Structural Break Environment

open access: yesMathematics, 2022
This study examines the impact of industry-specific risk factors such as oil price, gas price, and exchange rate on stock returns of Malaysian oil and gas firms in a structural break environment by employing the break least square approach of Bai and ...
Mohammad Enamul Hoque, Soo-Wah Low
doaj   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

open access: yesAdvanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara   +8 more
wiley   +1 more source

Gas exchange parameters in leaves and ears of winter wheat Tricitum aestivum L. and its productivity under fungicide control conditions

open access: yesActa Agrobotanica, 2012
A research experiment was conducted in which rates of photosynthesis and transpiration were measured in leaves and ears of two winter wheat varieties grown under fungicide control conditions and without fungicide control.
Joanna K. Jarmołkowicz, Jacek Olszewski
doaj   +1 more source

OntOMat: Toward Ontology‐Based Product and Process Design Engineering and Optimization Solutions Fueling Circular Value Chains

open access: yesAdvanced Engineering Materials, EarlyView.
The OntOMat ontology establishes a structured framework for polymer matrix fiber reinforced composite materials, integrating manufacturing processes, characterization methods, and multiscale design through the VDI/VDE 3682 formalized process description standard.
Nicolas Christ   +19 more
wiley   +1 more source

Big Ideas Exchange: New Directions for Defense [video]

open access: yes, 2016
The latest NPS Big Ideas Exchange showcases five NPS speakers that bring forward new and potentially game-changing ideas to address grand challenges in American national security.
Strawser, Bradley   +4 more
core   +2 more sources

Polymeric Kinetic Hydrate Inhibitors in NaCl Brine–Sediment Media: Hydrate Performance, Rheological Structuring, and Interfacial Responses

open access: yesGels
Gas hydrate plugging remains a persistent flow-assurance challenge in offshore oil and gas operations. PVP, pectin, CMCS, and PASP were compared at 0.1–0.5 wt% in pure water, 3.5 wt% NaCl brine, pure water–sediment, and brine–sediment media using hydrate
Guan-Lin Zhong   +7 more
doaj   +1 more source

Do Oil and Gas Risk Factors Matter in the Malaysian Oil and Gas Industry? A Fama-MacBeth Two Stage Panel Regression Approach

open access: yesEnergies, 2020
This study examines whether oil and gas risk factors are priced in the returns of Malaysian oil and gas stocks employing asset pricing model with improved version of Fama-MacBeth two-stage panel regression.
Mohmmad Enamul Hoque   +2 more
doaj   +1 more source

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