Results 51 to 60 of about 2,591,960 (246)

Flight crew fatigue risk assessment for international flights under the COVID-19 outbreak response exemption policy

open access: yesBMC Public Health, 2022
Background In response to the COVID-19 outbreak, the Civil Aviation Administration of China (CAAC) has formulated Implementation Measures for Exemption of Crew Duty Periods and Flight Time Restrictions during the COVID-19 Outbreak.
Junya Sun   +4 more
doaj   +1 more source

Stakeholder Alignment Around Technological Pathways in Early‐Stage Sustainability Transitions: A Study of Stakeholder‐Perceived Stakes in Aviation Decarbonization

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This paper examines how stakeholder groups become aligned or remain misaligned around alternative technological pathways during early‐stage sustainability transitions. We develop the concept of stakeholder‐perceived stakes, capturing how stakeholder groups evaluate technological pathways through perceived drivers and holdbacks, and how these ...
Helén Anderson, León Poblete
wiley   +1 more source

Graded Solvation‐Structure Electrolyte for Synergistic Polysulfide Confinement and Interfacial Stabilization in Potassium‐Sulfur Batteries

open access: yesCarbon Energy, EarlyView.
A graded solvation structure is designed through a strongly–moderately–weakly solvating strategy to synergistically regulate potassium polysulfide dissolution and K‐anode deposition behavior. This tailored electrolyte effectively stabilizes the electrode/electrolyte interphases and accelerates sulfur redox kinetics.
Zhifei Mao   +6 more
wiley   +1 more source

Dual‐Function Electrocatalysis: Simultaneous Wastewater Remediation and Hydrogen Evolution—A Comprehensive Review

open access: yesCarbon Energy, EarlyView.
Replacing the oxygen evolution reaction with the electro‐oxidation of pollutants and waste streams offers an energy‐efficient route for simultaneous hydrogen production and pollutant remediation. This review summarizes the reaction mechanisms, catalyst design principles, and emerging paired‐electrolysis strategies that govern activity, selectivity ...
Safa Al‐Yahyaey   +4 more
wiley   +1 more source

Challenges of Bio‐Syngas Conversion to High‐Value‐Added Liquid Chemicals and Fuels via COx Hydrogenation

open access: yesCarbon Energy, EarlyView.
Converting biomass‐derived syngas into value‐added fuels and chemicals offers a promising route toward carbon neutrality, yet unfavorable H2/COx ratios, elevated CO2 levels, and trace impurities pose persistent obstacles. This review examines strategies spanning syngas conditioning, impurity‐tolerant catalyst development, and integrated process design,
Xuan Bie   +7 more
wiley   +1 more source

Spotlight commentary: Drug therapy in hypoxic environments: From aerospace models to high‐altitude clinical pharmacology

open access: yes
British Journal of Clinical Pharmacology, EarlyView.
Martin Bobek   +2 more
wiley   +1 more source

Carbon2Chem—Innovative Research for the Energy Transition

open access: yesChemie Ingenieur Technik, EarlyView.
The Carbon2Chem project has been working on solutions for the energy transition since 2016. Despite changes in its framework conditions, the project remains on course. The project structure and the collaboration between the project partners are essential for the project's success.
Torsten Müller
wiley   +1 more source

Federal Aviation Administration Safety Database

open access: yes
Users can access data related to aviation safety, airline delays, and aviation accidents. Background The Federal Aviation Administration data is maintained by the Aviation Administration of the United States.
N/A
core   +1 more source

First Operation Results of a Methanol Demonstration Plant With Real Steel Mill Gases

open access: yesChemie Ingenieur Technik, EarlyView.
A demonstration plant with industrial setup regarding length, diameter, boiling water cooling system and gas recycle was initially operated with cleaned blast furnace gas and compared with earlier experiments with bottle gases. Dynamic disturbances from the steel mill and gas cleaning unit were noticed and could be compensated by the control system ...
Johannes Michael Voß, Tim Schulzke
wiley   +1 more source

The U.S. Navy's aviation safety program: a critical review.

open access: yes, 2012
Safety research has shown that human error, as opposed to mechanical failure, is a major causal factor in accidents in high reliability organizations. In U.S. Naval aviation, human error accounts for more than 80% of mishaps.
O'Connor, Paul
core   +1 more source

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