Results 51 to 60 of about 15,244 (236)

Impact of Environmental Exposure on Infant Sleep : The Exposome Approach

open access: yesJournal of Sleep Research, EarlyView.
This review explores how exposure to environmental pollutants during the first 1000 days of life may affect infant sleep. Evidence suggests potential links between chemical exposures and sleep disturbances, underscoring the need for more research on early‐life vulnerability and the impact of pollutants in air, diet, and breast milk.
Zeina Halbouty   +6 more
wiley   +1 more source

Annular rocket motor and nozzle configuration Patent [PDF]

open access: yes, 1962
High thrust annular liquid propellant rocket engine and exhaust nozzle ...
Connors, J. F.
core   +1 more source

Effect of Sintering Parameters on the Densification, Microstructure, and Mechanical Performance of ZrB2–SiC Ceramics

open access: yesInternational Journal of Applied Ceramic Technology, Volume 23, Issue 2, April 2026.
This graphical abstract illustrates the systematic investigation of Spark Plasma Sintering (SPS) parameters, temperature, pressure, and dwell time, on the densification and mechanical performance of ZrB2–20 vol% SiC composites. It highlights the critical influence of powder processing history (WC vs.
Prakhar Jindal   +5 more
wiley   +1 more source

High temperature spark plug Patent [PDF]

open access: yes, 1966
High temperature spark plug for igniting liquid rocket ...
Watson, J. E.
core   +1 more source

The Monetary Policy–Commodities Nexus: A Survey

open access: yesJournal of Economic Surveys, Volume 40, Issue 2, Page 1050-1082, April 2026.
ABSTRACT This survey synthesizes evidence on the bidirectional links between commodity markets and monetary policy. On the commodities‐to‐policy side, we review how shocks to energy, food, and metals pass through to inflation, inflation expectations, economic activity, and financial stability in state‐dependent ways that vary by shock type, exposure ...
Martin T. Bohl   +2 more
wiley   +1 more source

Reduced gravity liquid configuration simulator [PDF]

open access: yes, 1969
Reduced gravity liquid configuration simulator to study propellant behavior in rocket fuel ...
Olsen, W. A., Jr., Pinkel, I. I.
core   +1 more source

The Future of Hydrogen‐Powered Aviation: Technologies, Challenges, and a Strategic Roadmap for Sustainable Decarbonization

open access: yesAdvanced Energy and Sustainability Research, Volume 7, Issue 3, March 2026.
Hydrogen‐powered aviation offers a transformative pathway to zero‐emission flight by eliminating in‐flight CO2 emissions. Key considerations include propulsion systems (fuel cells and hydrogen combustion), cryogenic storage and insulation challenges, infrastructure and cost barriers, and supply‐chain constraints.
Mubasshira   +4 more
wiley   +1 more source

Launch vehicle performance using metallized propellants [PDF]

open access: yes
Metallized propellant propulsion systems are considered as replacements for the solid rocket boosters and liquid sustainer stages on the current launch vehicles: both the Space Transportation System (STS) and the Titan 4.
Palaszewski, Bryan A., Powell, Richard
core   +1 more source

Crater Observing Bioinspired Rolling Articulator (COBRA)

open access: yesAdvanced Intelligent Systems, Volume 8, Issue 3, March 2026.
Crater Observing Bio‐inspired Rolling Articulator (COBRA) is a modular, snake‐inspired robot that addresses the mobility challenges of extraterrestrial exploration sites such as Shackleton Crater. Incorporating snake‐like gaits and tumbling locomotion, COBRA navigates both uneven surfaces and steep crater walls.
Adarsh Salagame   +4 more
wiley   +1 more source

The issue of ensuring the safe explosion of the spent orbital stages of a launch vehicle with propulsion rocket engine

open access: yesMATEC Web of Conferences, 2017
A method for increasing the safe explosion of the spent orbital stages of a space launch vehicle (SLV) with a propulsion rocket engine (PRE) based on the gasification of unusable residues propellant and venting fuel tanks.
Trushlyakov Valeriy I.   +1 more
doaj   +1 more source

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