Results 101 to 110 of about 13,533 (294)

Post-impact behavior of composite solid rocket motor cases [PDF]

open access: yes
In recent years, composite materials have seen increasing use in advanced structural applications because of the significant weight savings they offer when compared to more traditional engineering materials.
Highsmith, Alton L.
core   +1 more source

Multifunctional Fluidic Units for Emergent, Responsive Robotic Behaviors

open access: yesAdvanced Materials, EarlyView.
A multifunctional reconfigurable fluidic unit can be used as sensor, valve and actuator is presented. A unique configuration combines the features of the three components as a Responsive self‐oscillating actuator. The remarkable versatility of the fluidic unit is demonstrated by building different robots with the same fluidic units only by varying ...
Mostafa Mousa   +3 more
wiley   +1 more source

Influence of time on bond characteristics between extruded PVC tube and cast HTPB/IPDI rocket propellant [PDF]

open access: yesScientific Technical Review, 2017
This paper is dealing about the possibility of using thermoplastic material as an inhibitor for solid composite propellant in a long period of time. A basic point in this consideration is an analysis of bond characteristics between the extruded PVC tube ...
Radulović Jovan, Milojković Aleksandar
doaj  

Physical Intelligence in Small‐Scale Robots and Machines

open access: yesAdvanced Materials, EarlyView.
“Physical intelligence” (PI) empowers biological organisms and artificial machines, especially at the small scales, to perceive, adapt, and even reshape their complex, dynamic, and unstructured operation environments. This review summarizes recent milestones and future directions of PI in small‐scale robots and machines.
Huyue Chen, Metin Sitti
wiley   +1 more source

Inhibiting aluminum agglomeration and enhancing combustion in composite propellants via perfluoropolyether

open access: yesResults in Engineering
Aluminum powder is widely incorporated into solid propellants to boost their specific impulse, yet its coalescence into large agglomerates during combustion impairs ballistic performance by reducing combustion efficiency, increasing two-phase flow losses,
Wenchao Zhang   +7 more
doaj   +1 more source

Development of high temperature materials for solid propellant rocket nozzle applications Quarterly progress report, 1 Jul. - 30 Sep. 1969 [PDF]

open access: yes
Refractory metal and graphite composite research for solid propellant rocket nozzle ...
Lineback, L. D., Manning, C. R., Jr.
core   +1 more source

Emergent Motility of Self‐Organized Particle‐Giant Unilamellar Vesicle Assembly

open access: yesAdvanced Materials, EarlyView.
Giant unilamellar vesicles (GUVs), when combined with silica particles under alternating electric fields, spontaneously self‐assemble into motile structures. Asymmetric particle decoration induces fluid flows that propel the assemblies, enabling persistent motion and reversible control.
Selcan Karaz   +5 more
wiley   +1 more source

Some aspects of steady-state propellant combustion as related to dynamic coupling mechanisms [PDF]

open access: yes
Dynamic pressure and velocity coupling mechanisms in steady-state solid propellant ...
Povinelli, L. A.
core   +1 more source

Mesoporous Silica Nanoparticles in Biomedicine: Advances and Prospects

open access: yesAdvanced Materials, EarlyView.
Mesoporous silica nanoparticles offer unique properties like high surface area, tunable pores, and functionalization. They excel in drug delivery, tissue engineering, and stimuli‐responsive therapies, enabling targeted and controlled treatments. With roles in cancer therapy and diagnostics, their clinical translation requires addressing challenges in ...
Miguel Manzano, María Vallet‐Regí
wiley   +1 more source

2D Co‐Mo‐Hydroxide‐Based Multifunctional Material for the Development of H2‐Based Clean Energy Technologies

open access: yesAdvanced Materials, EarlyView.
2D α‐Co(OH)2 interleaved with Mo species displays an appealing dual functionality for the production and use of green hydrogen.Mo incorporation greatly benefits the electrochemical behaviour in Oxygen Evolution Reaction for H2 production, while the magnetocaloric response at liquid H2 temperature paves the way for alternative cryogenic refrigerants ...
Daniel Muñoz‐Gil   +14 more
wiley   +1 more source

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