Results 201 to 210 of about 129,630 (391)

Impact of Ethanol on Electrostatic Behaviour of Fluorocarbon Pharmaceutical Propellants. [PDF]

Pharmaceuticals (Basel)
Ranatunge L, Rasekh M, Ahmad H, Balachandran W.   +3 more
europepmc   +1 more source

Influence of Firing Temperature on Properties of Gun Propellants [PDF]

, 2015
Moulai Karim Boulkadid, Michel Lefèbvre, Laurence Jeuniea, Alain Dejeaifve   +3 more
openalex   +1 more source

Recent Advances in Variable‐Stiffness Robotic Systems Enabled by Phase‐Change Materials

Advanced Robotics Research, EarlyView.
Phase‐change materials (PCMs), such as shape memory alloys, hydrogels, shape memory polymers, liquid crystal elastomers, and low‐melting‐point alloys, are driving advancements in stiffness‐tunable robotic systems across a wide range of applications. This review highlights recent progress in PCM‐enabled robotics, focusing on their underlying mechanisms,
Sukrit Gaira, Liao Wu, Ming Li, Priyank Kumar, Xiaopeng Li, Shi‐Yang Tang   +5 more
wiley   +1 more source

Modeling of pulsed propellant reorientation [PDF]

Optimization of the propellant reorientation process can provide increased payload capability and extend the service life of spacecraft. The use of pulsed propellant reorientation to optimize the reorientation process is proposed.
Chato, D. J., Hochstein, J. I., Patag, A. E.   +2 more
core   +1 more source

Assessment of the Stability of Propellants Modified with Eco-Friendly Plasticizers. [PDF]

Polymers (Basel)
Cieślak K, Wycech MI, Tomaszewski W.
europepmc   +1 more source

Information Transmission Strategies for Self‐Organized Robotic Aggregation

Advanced Robotics Research, EarlyView.
In this review, we discuss how information transmission influences the neighbor‐based self‐organized aggregation of swarm robots. We focus specifically on local interactions regarding information transfer and categorize previous studies based on the functions of the information exchanged.
Shu Leng, Zihan Li, Yifeng Shao, Jinhao Liu, Li Yu, Shuguang Li   +5 more
wiley   +1 more source

Starting modes of multidirectional electrodeless plasma thruster with closed ring-shaped gas discharge chamber. [PDF]

Sci Rep
Shumeiko AI, Andronov AA, Pashaev AD, Savelev PO, Telekh VD.   +4 more
europepmc   +1 more source

Comparison of ignition delays of several propellant combinations obtained with modified open-cup and small-scale rocket engine apparatus

, 1953
Dezso J Ladanyi, Riley O Miller
openalex   +1 more source

ANALYZING THE USE OF GASEOUS HELIUM AS A PRESSURANT WITH CRYOGENIC PROPELLANTS WITH THERMODYNAMIC VENTING SYSTEM MODELLING AND TEST DATA [PDF]

, 2008
A. Hedayat, Stuart Nelson, L. J. Hastings, R. H. Flachbart, D. J. Vermilion, Stephen Tucker, J. G. Weisend, John Barclay, Susan Breon, Jonathan Demko, Michael DiPirro, J. Patrick Kelley, Peter Kittel, Arkadiy Klebaner, Al Zeller, Mark Zagarola, Steven Van Sciver, Andrew Rowe, John Pfotenhauer, Tom Peterson, Jennifer Lock   +20 more
openalex   +1 more source

Energy Consumption Optimization in Trajectory Planning for Fuel Cell Hybrid Uavs Based On HMPC

Advanced Robotics Research, EarlyView.
The endurance limitation of multirotor drones is a critical challenge. This study adopts a hybrid power system of fuel cells and lithium‐ion batteries. Using Nondominated Sorting Genetic Algorithm II, it integrates trajectory planning with energy management optimization.
Xindi Wang, Jianyang Dong, Yongming Yao, Kaijin Hu, Jianxiong Cui, Yikai Luo, Jiawen Zhang, Shichao Niu   +7 more
wiley   +1 more source