Results 111 to 120 of about 12,339 (306)

Arcjet thruster operated with different propellants

, 2011
As a simple and reliable propulsion system, arcjet thrusters have been used in multiple satellite missions. The performance of an arcjet thruster is controlled by the characteristics of the arc-discharge behavior and the arc-electrode interactions to a ...
黄河激, 潘文霞, 吴承康
core   +1 more source

Strong‐Magnetic Flexible Composites for Magnetically Responsive Soft Robots

Advanced Robotics Research, EarlyView.
This perspective provides an overview of the performance mechanisms, preparation methods, and applications of strong magnetic flexible composite materials in soft actuators (such as gripping, movement, and sensing), and further explores current opportunities and challenges.
Wenwen Li, Shuai Liu, Xinyi Wang, Xinglong Gong, Shouhu Xuan   +4 more
wiley   +1 more source

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

Fuels
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, Makayla L. L. Ianuzzi, Jeffrey D. Moore, Grant A. Risha   +3 more
doaj   +1 more source

Hard‐Magnetic Soft Millirobots in Underactuated Systems

Advanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang, Zixuan Zhang, Bingyan Li, Junkai Wang, Hongcheng Gu   +4 more
wiley   +1 more source

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

Наукові 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

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

Scientific 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, Fidanovski Bojana, Jelisavac Ljiljana, Rodić Vesna   +3 more
doaj  

Perancangan Propeler Self-Propelled Barge

Jurnal Teknik ITS, 2013
Makalah ini menyampaikan suatu penelitian tentang perancangan propeler yang optimal beserta pemilihan daya mesin yang efisien pada self-propelled barge dengan memperhitungkan besarnya nilai tahanan dari barge tersebut. Dengan penambahan sistem propulsi, diharapkan barge dapat beroperasi dengan lebih efisien dibandingkan saat barge beroperasi ...
Billy Teguh kurniawan, Eko Budi Djatmiko
openaire   +1 more source

Solid propellants: AP/HTPB composite propellants

, 2015
In this article we mainly discuss about AP/HTPB composite solid propellants. Classification, components, properties, burning rate and ignition behavior of propellants are mentioned here.
Dave, Pragnesh N., Chaturvedi, Shalini
core   +1 more source

In Situ Photopolymerization of Smectic B Liquid‐Crystalline Electrolytes from Mesogenic Phosphate–Diacrylate/Ionic Liquid Complexes for High‐Performance Soft Ionic Actuators

Advanced Robotics Research, EarlyView.
A flexible liquid‐crystalline electrolyte membrane via in situ photopolymerization of a phosphate‐functionalized mesogen, ionic liquid, and diacrylate monomer is developed. The resulting smectic B (SmB)‐phase structure enables 2D ion transport with high conductivity (10−4 S cm−1).
Chengyang Liu, Masafumi Yoshio
wiley   +1 more source

Nitramine propellants

, 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 ...
Strand, L. D., Cohen, N. S.
core