Results 51 to 60 of about 826 (185)

EU Space Law and Earth's Boundaries: Integrating Environmental Impact Assessment and Corporate Due Diligence

Global Policy, EarlyView.
ABSTRACT The European Union's proposed Space Law aims to establish a unified approach for sustainable space activities across the EU. While the EU's satellite constellations contribute to sustainability efforts, they can also have negative environmental impacts.
Elena Cirkovic, Vitali Braun
wiley   +1 more source

Impact of Environmental Exposure on Infant Sleep : The Exposome Approach

Journal 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, Debora Tuka, Erwan Stephan‐Blanchard, Veronique Bach, Pierre Tourneux, Elodie Haraux, Karen Chardon   +6 more
wiley   +1 more source

Europium‐ and dysprosium‐modified strontium aluminate: A luminescent marker system for enhanced gunshot residue detection

Journal of Forensic Sciences, Volume 71, Issue 4, Page 1607-1620, July 2026.
Abstract Forensic ballistics is essential in analyzing evidence from firearm use in criminal investigations, with gunshot residue (GSR) detection providing key information about the firearm and shooting conditions. Traditional methods like spectroscopy and scanning electron microscopy (SEM) have limitations in sensitivity, cost, and accessibility ...
Paulo Tonin, Cesar Aguzzoli, Sidnei Moura   +2 more
wiley   +1 more source

Reliability of solid rocket propellant grain under simultaneous action of multiple types of loads [PDF]

Scientific Technical Review, 2016
A case-bonded solid propellant rocket grain is subjected to many stress-inducing loads during the service life, due to temperature, extended polymerization, transportation, vibration, acceleration, aerodynamic heating etc.
Gligorijević Nikola, Živković Saša, Rodić Vesna, Antonović Saša, Milojković Aleksandar, Pavković Bojan, Novaković Zoran   +6 more
doaj  

Impulse and Performance Measurements of Electric Solid Propellant in a Laboratory Electrothermal Ablation-Fed Pulsed Plasma Thruster

Aerospace, 2020
Electric solid propellants are advanced solid chemical rocket propellants that can be controlled (ignited, throttled and extinguished) through the application and removal of an electric current.
Matthew S. Glascock, Joshua L. Rovey, Kurt A. Polzin   +2 more
doaj   +1 more source

Analysis of viscoelastic behavior of a filled elastomer under action of different loads [PDF]

Hemijska Industrija, 2017
Mechanical properties of viscoelastic filled polymers strongly depend on temperature and strain rate and vary for several orders of magnitude. During service life, a viscoelastic body, especially carboxy-terminated polybutadiene (CTPB) composite solid ...
Gligorijević Nikola I., Živković Saša Ž., Kovačević Nenad V., Dimitrijević Nenad P., Pavković Bojan M., Pavić Miloš, Rodić Vesna Ž.   +6 more
doaj   +1 more source

Frequency‐Dependent Acoustic Reflection Coefficients of Flat Ground Assessed Using the Sonic Boom From the OSIRIS‐Rex Sample Return Capsule Recorded on Free Flying Balloons

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract Low frequency sound can travel great distances in planetary atmospheres. When these waves reflect off the air/ground interface, energy may be absorbed or transferred to mechanical waves in the subsurface. This study describes the direct and reflected acoustic wave generated by the re‐entry of the OSIRIS‐REx Sample Return Capsule captured on a ...
Daniel C. Bowman, Jonathan M. Lees, Siddharth Krishnamoorthy, Elizabeth A. Silber, Jacob S. Izraelevitz, Ashish Goel, Emalee Hough, Zach Yap, Mirza Samnani, Michael J. Fleigle, Justin R. LaPierre, James A. Cutts, Attila Komjathy   +12 more
wiley   +1 more source

Overview of Al-based nanoenergetic ingredients for solid rocket propulsion

Defence Technology, 2018
The introduction of nano-sized energetic ingredients first occurred in Russia about 60 years ago and arose great expectations in the rocket propulsion community, thanks to the higher energy densities and faster energy release rates exhibited with respect
Luigi T. DeLuca
doaj   +1 more source

A Non‐Reciprocal Architected Porous Medium

Advanced Functional Materials, Volume 36, Issue 47, 11 June 2026.
ABSTRACT In several fluid flow, energy‐dumping, and energy‐harvesting applications, a dominant flow direction or dominant resistance direction is desirable. In this study, we propose a simple modular geometry that doubles flow resistance in one direction relative to the opposite direction, while maintaining laminar viscous flow.
Clément Vezies, Pablo Zavattieri, Nicolás Silin   +2 more
wiley   +1 more source

Effect of cyclic loads on structural damage of rocket propellant grain [PDF]

Scientific Technical Review, 2019
Rocket motor propellant grain, cast or bonded into the motor chamber or solid coating, is exposed to various loads during its service life. Rocket propellant is a viscoelastic material, whose mechanical properties strongly depend on temperature and ...
Gligorijević Nikola, Rodić Vesna, Pavković Bojan, Bogdanov Jovica, Živković Saša, Bajić Zoran   +5 more
doaj