Results 111 to 120 of about 4,408 (300)

Study on the open-air NEPE solid propellant fire characteristics: Effect of altitude upon the flame performance through CFD

FirePhysChem
Solid propellant fires, characterized by uncontrolled combustion behaviors, are a common occurrence in industries that utilize solid propellants and can lead to significant consequences. However, there has been a lack of comprehensive studies on modeling
Li Yu, Yupeng Hu, Guangmei Shi, Minghai Li, Yanhong Zhang   +4 more
doaj   +1 more source

Solid Propellants Based on AN/AP Co-Crystal for Green Space Access

, 2006
Ammonium Nitrate, an inorganic solid oxidizer already used in rocket propulsion decades ago, produces environmentally friendly combustion products. It is a very cheap energetic material, but its specific impulse is low compared with that of Ammonium ...
D. Signoriello, GALFETTI, LUCIANO, V. P. Sinditskii, DE LUCA, LUIGI, A. Vorozhtsov, G. F. Klyakin, S. Cianfanelli, V. Babuk   +7 more
core  

A Soft Robotic Device for Targeted Massage Therapy of Residual Limbs

Advanced Robotics Research, EarlyView.
Residual limb edema after amputation can hinder recovery and delay prosthetic fitting. This study presents a soft‐robotic wearable device that delivers sequential compression through pneumatic McKibben actuators. By replicating the principles of manual lymphatic drainage, the device generates controlled mechanotherapeutic pressure patterns, providing a
Maria Grazia Polizzotto, Alessio Capecchi, Maartje Van der Lingen, Emanuele Gruppioni, Arianna Menciassi, Linda Paternò   +5 more
wiley   +1 more source

Development of hydrazinium nitroformate based solid propellants

, 1995
The development of new high-performance propellant combinations requires the establishment of safety and handling characteristics and thermodynamic decomposition and explosive properties.
Schnorhk, A.J., Schöyer, H.F.R., A Schnorhk, Mul, J.M., J Mul, Gadiot, G., Korting, P.A.O.G., P Korting, van Lit, P, H Schoeyer, G Gadiot, Lit, P.J. van, J Meulenbrugge, Meulenbrugge, J.J.   +12 more
core   +1 more source

A Soft Robotic Fish With a Dielectric Elastomer Actuator Body and Negative Stiffness Spine

Advanced Robotics Research, EarlyView.
This work introduces a bio‐mimetic soft robotic fish driven by fiber‐reinforced dielectric elastomer actuators integrated as its body. By prestretching this active skin against a flexible spine, a negative stiffness system is created, enabling large‐amplitude bending.
Markus Koenigsdorff, Simon Holzer, Stefania Konstantinidi, Yoan Civet, Yves Perriard   +4 more
wiley   +1 more source

Review of solid propellants for space exploration

, 1965
Solid propellants for space vehicles and spacecraft fuel ...
Hendel, F. J.
core  

Hybrid Continuum Robot Designs and Architectures for Healthcare Applications

Advanced Robotics Research, EarlyView.
Hybrid continuum robots represent an emerging class of flexible manipulators that blend materials, structures, and actuation concepts from the established fields of soft and continuum robotics. This review introduces an accessible framework to distinguish key hybridization approaches, surveys current designs aimed at complex clinical applications, and ...
Burak Ozdemir, Muhammad A. Khalid, Manish Chauhan, Pietro Valdastri, James H. Chandler   +4 more
wiley   +1 more source

Heterogeneous solid propellants: from microstructure to macroscale properties

, 2011
Composite solid propellants are inherently heterogeneous at microscopic level. Consequently, global mixture laws are often inappropriate because they cannot capture the underlying microstructural features.
S. Gallier
core   +1 more source

MicroRoboScope: A Portable and Integrated Mechatronic Platform for Magnetic and Acoustic Microrobotic Experimentation

Advanced Robotics Research, EarlyView.
This work presents the MicroRoboScope, a highly integrated, compact, and portable microrobotic experimentation platform combining electromagnetic and acoustic actuation with real‐time visual feedback into a single, end‐to‐end device. The system enables closed‐loop control and tracking algorithm experimentation within an accessible and unified hardware ...
Max Sokolich, Yanda Yang, Subrahmanyam Cherukumilli, Fatma Ceren Kirmizitas, Sambeeta Das   +4 more
wiley   +1 more source

A new prepolymer: lactone-terminated polybutadiene (LTPB) for high-energy solid propellants

, 1978
The development of a new polybutadiene prepolymer with lactone terminals for use in solid propellants is reported. The data presented include those relating to the nature of reactions involved in synthesis, the spectroscopic and analytical studies to ...
Gowariker, V. R., Rao, K. V. C., Sreedhar, Jayadev, Varghese, T. L.   +3 more
core   +1 more source