Results 31 to 40 of about 46,180 (252)

Research progress of energetic coordination complexes with laser ignition performance

Energetic Materials Frontiers
In recent years, laser ignition technology has aroused great attention due to its advantages of simple operation, high safety and strong anti-electromagnetic interference ability. One of the key factors for developing laser ignition technology is hunting
Jin-xin Wang, Qiang Zhang, Hai-feng Wang, Nan Sun, Kang-cai Wang   +4 more
doaj   +1 more source

Fast ignition of inertial fusion targets by laser-driven carbon beams

, 2009
Two-dimensional simulations of ion beam driven fast ignition are presented. Ignition energies of protons with Maxwellian spectrum and carbon ions with quasimonoenergetic and Maxwellian energy distributions are evaluated.
B. M. Hegelich, Honrubia J. J., J. C. Fernández, J. J. Honrubia, J. Meyer-ter-Vehn, M. Temporal   +5 more
core   +1 more source

Visualization of laser-induced breakdown and ignition

Optics Express, 2001
Laser-induced gas breakdown and ignition of atmospheric pressure NH3/O2 mixtures are investigated. The nanosecond-pulsed, 1064-nm Nd:YAG laser is used to create the cascade-type optical breakdown. The post-breakdown plasma and ignition are studied using spectroscopic techniques that include spontaneous emission and NH planar laser-induced fluorescence (
Y L, Chen, J W, Lewis
openaire   +2 more sources

Experimental Study of Ignition over Impact-Driven Supersonic Liquid Fuel Jet

Advances in Mechanical Engineering, 2013
This study experimentally investigates the mechanism of the ignition of the supersonic liquid fuel jet by the visualization. N-Hexadecane having the cetane number of 100 was used as a liquid for the jet in order to enhance the ignition potential of the ...
Anirut Matthujak, Kulachate Pianthong, Kazuyoshi Takayama, B. E. Milton   +3 more
doaj   +1 more source

Chaotic behavior of quantum cascade lasers at ignition

Communications in Nonlinear Science and Numerical Simulation, 2021
The ignition of Quantum Cascade Lasers can occur from a state of oscillating fie ld domains. Here, the interplay between lasing and the kinetics of traveling dom ain boundaries provides complex oscillation scenarios. We analyze our numerical findings in detail for a device operating at terahertz frequencies and manifest chaotic evolution by positive ...
D. E. Önder, A. A. S. Kalaee, David O. Winge, Andreas Wacker   +3 more
openaire   +2 more sources

Dielectric Barrier Discharge Plasma Deoxidation of Natively Oxide Layer of Copper Powders in a Fluidized Bed

Advanced Engineering Materials, EarlyView.
This paper presents a novel approach to reducing oxide layers on metal powders using low‐temperature hydrogen dielectric barrier discharge plasmas at atmospheric pressure. Unlike conventional hydrogen‐plasma reductions, the powders do not contact the plasma directly.
Shukang Zhang, Annett Wollmann, Thomas Gimpel, Alfred P. Weber   +3 more
wiley   +1 more source

Photon Avalanching Nanoparticles: The Next Generation of Upconverting Nanomaterials?

Advanced Functional Materials, EarlyView.
This Perspective outlines the mechanistic foundations that enable photon‐avalanche (PA) behavior in lanthanide nanomaterials and contrasts them with emerging application spaces and forward‐looking design strategies. By bridging threshold engineering, energy‐transfer dynamics, and materials engineering, we provide a coherent roadmap for advancing the ...
Kimoon Lee, Yunseo Kim, Hyeong‐ku Jo, Dongjoon Yoon, Byeonghyeok Im, WonJeong Yu, Eui‐Rim On, Changhwan Lee   +7 more
wiley   +1 more source

Hydrodynamic modeling and simulations of shock ignition thresholds

EPJ Web of Conferences, 2013
The Shock Ignition (SI) scheme [1] offers to reduce the laser requirements by relaxing the implosion phase to sub-ignition velocities and later adding an intense laser spike.
Lafon M., Ribeyre X., Schurtz G., Le Bel E.   +3 more
doaj   +1 more source

Efficient modeling of laser plasma interactions in high energy density scenarios

, 2011
We describe how a new framework for coupling a full-PIC algorithm with a reduced PIC algorithm has been implemented into the code OSIRIS. We show that OSIRIS with this new hybrid-PIC algorithm can efficiently and accurately model high energy density ...
Fiuza, F., Fonseca, R. A., Marti, M., May, J., Mori, W. B., Silva, L. O., Tonge, J.   +6 more
core   +1 more source

Flash Assembloids: A Rapid Biofabrication of a Platform for Modeling Early Glioblastoma Invasion at the Glioblastoma–Brain Organoid Interfaces

Advanced Healthcare Materials, EarlyView.
This study presents a bioengineered assembloid (ASM) system combining glioblastoma (GBM) cells in oxidized alginate (OA) microgels with dorsal organoids (DOs). This model simulates brain tumor‐host interactions, revealing enhanced GBM invasion, altered gene expression, and aggressive infiltration patterns, demonstrating ASM as a valuable platform for ...
Chao Liang, Henry Robert Howard, Shihui Chen, Won‐Young Choi, Summer Cao, Arthur Chien, Kevin Zou, Michael Kassiou, Fabien Delerue, Ho Sang Jung, Yeonju Park, Young Mee Jung, Yong‐Dae Kwon, Karrie M. Kiang, Gilberto Ka‐Kit Leung, Ryohichi Sugimura, Ann‐Na Cho, Sang Jin Lee   +17 more
wiley   +1 more source