Results 71 to 80 of about 10,802 (309)

Plasmonic Nanomachines: Creating Local Potential Gradients and Motions

open access: yesAdvanced Materials, EarlyView.
Plasmonic nanomachines can generate optical, thermal, and chemical potential gradients to drive directional rectilinear, rotational, and twisting motions at the nanometer scale. The integration of multimodal plasmonic forces with functional materials and programmed structural distortions enables precise spatiotemporal actuation, thereby providing a ...
Yoonhee Kim   +3 more
wiley   +1 more source

On the history of the development of solid-propellant rockets in the Soviet Union [PDF]

open access: yes
Pre-World War II Soviet solid-propellant rocket technology is reviewed. Research and development regarding solid composite preparations of pyroxyline TNT powder is described, as well as early work on rocket loading calculations, problems of flight ...
Pobedonostsev, Y. A.
core   +1 more source

On the mechanical properties of an H-C rubber [PDF]

open access: yes, 1963
The material properties of H-C binder including dynamic shear compliance, relaxation modulus, creep compliance, ultimate stress and ultimate strain are reported. Further useful information in the form of Modified Power Law and Prony Series curve fits are
Knauss, Wolfgang G.
core  

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

open access: yesAdvanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen   +7 more
wiley   +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

Combustion and Propulsion Research [PDF]

open access: yes, 1963
Combustion chemistry is one of the oldest branches of chemical science. Among its pioneers must be counted Lavoisier, Bunsen, and others whose names belong among those of the founders of chemical science.
Penner, S. S.
core   +1 more source

Rational Tuning of Hygroscopic Oscillation of Stacked Nanoflake Assemblies for Continuous Ambient Energy Harvesting

open access: yesAdvanced Materials, EarlyView.
Stacked nanoflake assembly (SNA) membranes can oscillate autonomously, offering opportunities for soft actuation and energy harvesting. This work uncovers the physical mechanism behind the sustained oscillation of SNA membranes in gradient humidity and identifies three governing dimensionless parameters, enabling rational design for optimizing SNA ...
Zijing Zhang   +5 more
wiley   +1 more source

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

Molded composite pyrogen igniter for rocket motors [PDF]

open access: yes, 1978
A lightweight pyrogen igniter assembly including an elongated molded plastic tube adapted to contain a pyrogen charge was designed for insertion into a rocket motor casing for ignition of the rocket motor charge. A molded plastic closure cap provided for
Heier, W. C., Lucy, M. H.
core   +1 more source

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