Results 91 to 100 of about 3,707 (264)

The Dimensional Revolution of Phosphorus: From Allotropicity to Battery System Applications

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Phosphorus‐based materials are promising high‐capacity anodes classified by dimension (0D–3D) to systematically explore their properties and composite strategies. When combined with materials such as carbon to form heterostructures, the electrical conductivity and stability are effectively enhanced.
Shuhan Zhang   +8 more
wiley   +1 more source

Scramjets and Their Role in the Future of Aerospace Propulsion Systems [PDF]

open access: yesفناوری در مهندسی هوافضا, 2018
Scramjet is a jet engine designed to fly at high speeds, and is actually a ramjet engine in which combustion takes place in supersonic conditions. Considering that the main use of this type of engine is in the aerospace industry and the development of ...
Mahnaz Zakeri   +2 more
doaj  

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

Mixing Characteristics of Supersonic Jets Injected into a Pressurized Gas Environment

open access: yesApplied Sciences
The transition toward carbon-neutral energy systems has accelerated interest in hydrogen-fueled combustion technologies, where efficient fuel–air mixing is essential for stable and clean combustion.
Miah Md Ashraful Alam   +5 more
doaj   +1 more source

Hydrosilane Chemistry: From Historic First Steps to Modern Applications

open access: yesEuropean Journal of Inorganic Chemistry, EarlyView.
This review covers the history of hydrosilanes, from their initial discovery to their modern applications. It highlights the pioneering work of chemists like Alfred Stock and Franz Fehér and discusses the modern ways of synthesis and use of hydrosilanes in printed electronics.
Uwe Böhme, Maik Gerwig
wiley   +1 more source

Effect of Solid-to-Gas Ratio on Powder Fuel Mixing in a Cavity-Based Supersonic Combustion Chamber with Induced Shock: A Numerical Study

open access: yesAerospace
The development of powder-fueled ramjets is challenged by the mechanisms of flow mixing for the combustion of powder fuel in supersonic airflows. This paper describes a series of numerical simulations on the injection process of boron powder fuel in a ...
Zuodong Liang   +7 more
doaj   +1 more source

Experimental investigation of open cavity as flame holder of supersonic combustor

open access: yesMATEC Web of Conferences, 2017
The results of a study of combustion stabilization in a supersonic combustor for Mach numbers 2, 2.5, and 3 are presented. It was shown that the choice of the fuel injection scheme has decisive influence on the mixing efficiency and flame holding. It has
Goldfeld Marat
doaj   +1 more source

Large-Eddy Simulations of Molecular Mixing in a Recirculating Shear Flow [PDF]

open access: yes, 2008
The flow field and mixing in an expansion-ramp geometry is studied using large-eddy simulation (LES) with subgrid scale (SGS) modeling based on the stretched-vortex model.
Matheou, Georgios
core   +1 more source

Home - About - Disclaimer - Privacy