Results 131 to 140 of about 84,409 (357)

Orbital Electrowetting: From Continuous Droplet Transport to Programmable Microfluidics

open access: yesAdvanced Materials, EarlyView.
This work comprehensively summarizes the mechanisms, recent advances, potential applications, and key challenges of orbital electrowetting. It highlights that integrating orbital electrowetting with conventional electrowetting is required to enable complete digital‐microfluidic workflows while simplifying platform architecture.
Jie Tan   +7 more
wiley   +1 more source

Evaluation of N,N,N′,N′-Tetramethylethylenediamine (TMEDA) as an Alternative Fuel for a Hypergolic Bipropellant Rocket Engine

open access: yesFuels
Experimental research was conducted to characterize the ignition delay time and combustion performance of non-toxic reactants as a possible replacement for highly toxic fuels, such as hydrazine.
Joshua M. Hollingshead   +3 more
doaj   +1 more source

Analysis of the of propellants-polymers compatibility by different test methods [PDF]

open access: yesScientific Technical Review, 2017
This paper shows the results of chemical compatibility of two types of propellants (NGB-051and NC-28) with two types of polymer materials (Polyamide 12 and Polymethylmetacrylate) by different test methods.
Dimić Mirjana   +3 more
doaj  

Nitramine propellants [PDF]

open access: yes, 1978
Nitramine propellants without a pressure exponent shift in the burning rate curves are prepared by matching the burning rate of a selected nitramine or combination of nitramines within 10% of burning rate of a plasticized active binder so as to smooth ...
Cohen, N. S., Strand, L. D.
core   +1 more source

Combustion performance studies of aluminum and boron based composite solid propellants in sub-atmospheric pressure regimes

open access: yes, 2019
The aim of present study is to investigate the burning rate, ignition delay, and flame characteristics of ammonium perchlorate (AP)-hydroxyl terminated poly-butadiene (HTPB) [AP/HTPB] based composite propellants (CSP's) in sub-atmospheric pressure ...
Pratima Kumar, M. Varshney, A. Manash
semanticscholar   +1 more source

Magnetically Actuated Drops‐on‐Stilts Microrobots for Transport and Delivery of Hydrophobic Cargo

open access: yesAdvanced Materials Interfaces, EarlyView.
Iron oxide nanoparticles and oil droplets in external magnetic fields form “drops‐on‐stilts” microrobots that transport hydrophobic cargo. Tunable nanoparticle–droplet interactions generate stilt‐like structures. Field rotation enables walking, obstacle navigation, and collective motion.
Oluwafemi Ligan   +9 more
wiley   +1 more source

Phytoremediation of soils contaminated as a result of military and anthropogenic impact

open access: yesНаукові доповіді Національного університету біоресурсів і природокористування України
Military conflicts and anthropogenic accidents cause significant soil contamination with heavy metals, oil products, pesticides, and other toxic substances.
V. Melnychenko
doaj   +1 more source

Tailoring the Morphology of MoS2 using RF Magnetron Sputtering for Enhanced Photoelectrochemical Water Splitting

open access: yesAdvanced Materials Interfaces, EarlyView.
Tailoring the morphology of MoS2 using RF Magnetron Sputtering for Enhanced Photoelectrochemical Water Splitting. ABSTRACT 2D molybdenum disulfide (MoS2) is a promising material for optoelectronic and photoelectrochemical (PEC) applications due to its unique properties.
Somnath Ladhane   +9 more
wiley   +1 more source

Stabilizer selection and formulation strategies for enhanced stability of single base nitrocellulose propellants: A review

open access: yesEnergetic Materials Frontiers
Stabilizers play a crucial role in preventing undesirable decomposition and degradation reactions of propellants, thus ensuring their long-term performance and safe storage.
Siti Nor Ain Rusly   +4 more
doaj   +1 more source

Advanced Launch Vehicle Upper Stages Using Liquid Propulsion and Metallized Propellants [PDF]

open access: yes
Metallized propellants are liquid propellants with a metal additive suspended in a gelled fuel or oxidizer. Typically, aluminum (Al) particles are the metal additive.
Palaszewski, Bryan A.
core   +2 more sources

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