Results 41 to 50 of about 1,576 (295)
Impact of Hydrogen Peroxide Concentration on Manganese Oxide and Platinum Catalyst Bed Performance
Aerospace, 2023 This study investigates the use of MnxOy/Al2O3 and Pt/Al2O3 catalysts for the decomposition of hydrogen peroxide in thrusters. It describes the purpose, procedures, performance, and conclusions coming from the test campaign of the catalyst lifetimes.
Adrian Parzybut +2 more
doaj +1 more source
Green propellants: state of the art and future developments [PDF]
, 2022 openLa tesi ha lo scopo di approfondire l'argomento dei 'propellenti green', definendoli e illustrandone le caratteristiche fondamentali, andando poi a descrivere gli esempi più promettenti ...
CAZZOLA, DAVIDE
core
Near‐Infrared Light‐Driven Zn/Au Janus Micromotors for Multiplex SERS Detection of Anticancer Drugs
Advanced Functional Materials, EarlyView.Zn/Au Janus micromotors, propelled by thermophoretic effects under NIR light, function as active SERS platforms for single and multiplex detection of anticancer drugs. Their dynamic motion enhances analyte exchange at the Au interface, reducing saturation and competitive adsorption, thereby improving sensitivity and extending the linear detection range.
Tijana Maric +8 more
wiley +1 more source
Review of Alternative Sustainable Fuels for Hybrid Rocket Propulsion
Aerospace, 2023 Hybrid rockets using specific oxidizer–fuel combinations are considered a green alternative to current propulsion systems, as they do not release very toxic or polluting exhausts, but only much less harmful substances such as carbon monoxide/dioxide and ...
Francesco Barato
doaj +1 more source
, 2023 openL'inquinamento atmosferico sta raggiungendo livelli mai visti prima: i gas serra aumentano e lo fanno in modo esponenziale. Tra i determinanti vanno annoverati anche i razzi spaziali, poiché quando i voli commerciali aumenteranno progressivamente i ...
BAGLIOLID, RICCARDO
core
Advanced Functional Materials, EarlyView.Solvent vapor annealing enables kinetic control of additive‐free morphology in organic solar cells. Selective plasticization of acceptor forms an optimal fibrillar network, boosting efficiency to 19.06% (binary) and 19.75% (ternary), with ultrafast exciton dissociation and reduced recombination.
Jie Lv +20 more
wiley +1 more source
Virtual and Physical Prototyping, 2023 Material extrusion additive manufacturing is of increased interest in producing materials with very high loadings of particles, specifically through the use of the direct ink write (DIW), or robocasting, technique and the use of highly loaded particle ...
Alexandra Marnot +5 more
doaj +1 more source
Pulsed Chemical Rocket with Green High Performance Propellants
, 2013 PulCheR (Pulsed Chemical Rocket with Green High Performance Propellants) is a new propulsion concept in which the propellants are fed in the combustion chamber at low pressure and the thrust is generated by means of high frequency pulses, reproducing the
Lucio Torre +9 more
core +1 more source
Advances in Sustainable and Wearable Textile Based Soft Robotics
Advanced Functional Materials, EarlyView.This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas +6 more
wiley +1 more source
Chemical Engineering Journal AdvancesAmmonium nitrate (AN) is a promising chlorine-free oxidizer for green solid propellants (GSPs), but its practical application is limited due to undesirable polymorphic phase transitions at low temperature and endothermic decomposition.
R. Kazemshoar-Duzduzani +2 more
doaj +1 more source