Results 151 to 160 of about 159,848 (314)

Theoretical investigation on transverse mode combustion instability for liquid propellant rockets [PDF]

open access: yes
Mathematical solution of nonlinear transverse combustion instability problems in thin annular liquid propellant rocket ...
Crocco, L., Lorenzetto, J. H.
core   +1 more source

Entropy‐Driven Innovations: Entropy Stabilized Oxides for High‐Performance Next‐Generation Lithium–Sulfur Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This article explores high‐entropy‐stabilized oxides (HEOs) as novel functional materials for addressing critical issues in lithium–sulfur (Li–S) batteries, including lithium polysulfide (LPS) shuttling, inadequate conductivity, and slow redox kinetics.
Hassan Raza   +10 more
wiley   +1 more source

Interfacial Solvent Molecular Engineering via High‐Safety Dense Separators for High‐Rate Lithium‐Ion Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The dense PPS‐separator prevents thermal runaway by allowing electron transfer through the steel needle during penetration, while the residual electrolyte enables brief ion migration and Joule heating, causing rapid electrolyte vaporization, collapse of the ion transport network, and a sharp drop in ionic conductivity.
Haitao Zhou   +10 more
wiley   +1 more source

Breaking the Temperature Barrier: Ultra‐Stable SiHfBCN Ceramic Coatings for High‐Temperature Pressure Sensing

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A 3D conductive net including HfC(N) conductive nanodomains and in‐situ carbon ribbons was generated within the amorphous SiHfBCN matrix by a new molecular‐level composition and microstructure design strategy, making a smooth and dense polymer‐derived SiHfBCN ceramic coatings exhibits excellent electrical conductivity, wide‐temperature sensing, cycling
Xichao Dong   +6 more
wiley   +1 more source

Fire toxicology program. JSC methodology [PDF]

open access: yes
Toxicological testing of spacecraft materials was initiated in 1965. Toxicological evaluations of the pyrolysis/combustion products of candidate spacecraft materials were performed using a modified 142 liter Bethlehem Chamber equipped with a Linberg ...
Bafus, D., Schneider, H.
core   +1 more source

Synergy Engineering of d‐Band Center and Multi‐Phase Interface Charge Transport in Ternary Co3O4/Pt/Bi2MoO6 Hierarchical Heterojunction Arrays for Superior VOCs Sensing

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A novel ternary Co3O4/Pt/Bi2MoO6 hierarchical heterojunction array is designed, which exhibits an impressive gas sensing activity towards volatile organic compounds (VOCs), triethylamine. The design of ternary Co3O4/Pt/Bi2MoO6 hierarchical heterojunction not only optimizes the d‐band center and thus gas molecule adsorption activity on gas–solid ...
Yan Liang   +9 more
wiley   +1 more source

Application of Ablation to a High Chamber Pressure Rocket Engine [PDF]

open access: yes
Ablation cooling in rocket engine with combustion chamber liner and nozzle constructed of silica phenolic ablative ...
Brecheisen, A. W., Ehresman, C. M.
core   +1 more source

Sustainable Optimization of Emissions and Performance in Hydrogen Port Injection Diesel Engines Through Port Timing and Injection Duration Modulation

open access: yesEnergy Science &Engineering, EarlyView.
Optimizing hydrogen port injection in diesel engines significantly improves efficiency and reduces emissions, demonstrating a sustainable dual‐fuel strategy for cleaner transportation solutions and lower environmental impact. ABSTRACT This study evaluates a single‐cylinder hydrogen port injection (HPFI) Diesel engine by systematically varying the ...
Kaustubh R. Kapadani   +7 more
wiley   +1 more source

Combustion of Waste Rapeseed Oil and Jet Propellant‐8 Blends in a CI Engine

open access: yesEnergy Science &Engineering, EarlyView.
Using waste rapeseed oil (WRO) mixed with Jet Propellant‐8 (JP‐8) as fuel for a compression ignition engine. ABSTRACT The study examines the potential of blending waste rapeseed oil (WRO) with Jet Propellant‐8 (JP‐8) as a fuel for compression ignition (CI) engines.
Grzegorz Pawlak   +6 more
wiley   +1 more source

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