Results 31 to 40 of about 45,698 (239)

Visualization of the homogeneous charge compression ignition/controlled autoignition combustion process using two-dimensional planar laser-induced fluorescence imaging of formaldehyde [PDF]

, 2003
The paper reports an investigation into the HCCI/CAI combustion process using the two-dimensional PLIF technique. The PLIF of formaldehyde formed during the low-temperature reactions of HCCI/CAI combustion was exciting by a tunable dye laser at 355nm ...
Bäuerle B., H Zhao, N Ladommatos, Z Peng   +3 more
core   +1 more source

National Ignition Facility laser performance status

Applied Optics, 2007
The National Ignition Facility (NIF) is the world's largest laser system. It contains a 192 beam neodymium glass laser that is designed to deliver 1.8 MJ at 500 TW at 351 nm in order to achieve energy gain (ignition) in a deuterium-tritium nuclear fusion target.
C A, Haynam, P J, Wegner, J M, Auerbach, M W, Bowers, S N, Dixit, G V, Erbert, G M, Heestand, M A, Henesian, M R, Hermann, K S, Jancaitis, K R, Manes, C D, Marshall, N C, Mehta, J, Menapace, E, Moses, J R, Murray, M C, Nostrand, C D, Orth, R, Patterson, R A, Sacks, M J, Shaw, M, Spaeth, S B, Sutton, W H, Williams, C C, Widmayer, R K, White, S T, Yang, B M, Van Wonterghem   +27 more
openaire   +3 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

Laser Ablation Sampling With Low-Power Plasma: A LA-MIP-MS Instrument for Spaceflight. [PDF]

Rapid Commun Mass Spectrom
ABSTRACT Rationale Inductively coupled plasma (ICP) is a commonly used ion source for mass spectrometry‐based chemical analysis of a wide range of materials. Traditional ICP ion sources use high power (> 1000 W) and significant gas flow (> 10 L/min), rendering them unsuitable for spaceflight, as they are too resource‐intensive for planetary spacecraft.
Farcy BJ, Graham J, Raith M, Arevalo R, Taghioskoui M, Budinoff S, McAdam A, Lee J, Danell RM, Kaplan DA, Gundersen C, McDonough WF.   +11 more
europepmc   +2 more sources

Three-dimensional simulations of laser-plasma interactions at ultrahigh intensities [PDF]

, 2011
Three-dimensional (3D) particle-in-cell (PIC) simulations are used to investigate the interaction of ultrahigh intensity lasers ($> 10^{20}$ W/cm$^{-2}$) with matter at overcritical densities.
Fiuza, F., Fonseca, R. A., May, J., Mori, W. B., Silva, L. O., Tonge, J.   +5 more
core   +2 more sources

Focus issue introduction: Laser Ignition Conference

Optics Express, 2014
The purpose of this feature issue is to share information on laser ignition and related sciences and technologies. This feature offers five papers in the field that cover aspects of laser-induced laser ignition, including novel giant pulse micro-lasers, new phenomena of laser breakdown, advanced combustion systems and applications.
Takunori, Taira, Hirohide, Furutani, Chunlei, Guo, Ernst, Wintner, Fumiteru, Akamatsu, Robert, Lucht, Kunihiko, Washio   +6 more
openaire   +2 more sources

Spontaneous Raman scattering for simultaneous measurements of in-cylinder species [PDF]

, 2007
A technique for multi-species mole fraction measurement in internal combustion engines is described. The technique is based on the spontaneous Raman scattering. It can simultaneously provide the mole fractions of several species of N-2, O-2, H2O, CO2 and
Grunefeld G, Grunefeld G, H Zhao, Hinze P C, Johnston S C, Johnston S C, Knapp M, Mattias Richter, Miles P, Miles P C, S Zhang, Schutte M, Zhao H   +12 more
core   +1 more source

Advances in Safe, Flexible, and Stretchable Batteries for Wearable Applications

Advanced Materials Technologies, EarlyView.
Unlike previous reviews centered on component‐based deformability, this work highlights safety‐driven design strategies for flexible and stretchable batteries. By integrating material‐level engineering, geometry‐controlled structures, biocompatibility, and self‐protection mechanisms, it establishes a unified framework that connects mechanical ...
Hyewon Kang, Garan Byun, Seunghyeb Ban, Yunuo Huang, Woon‐Hong Yeo   +4 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

Ignition Delay Times of Kerosene (Jet-A)/Air Mixtures

, 2014
Ignition of Jet-A/air mixtures was studied behind reflected shock waves. Heating of shock tube at temperature of 150 C was used to prepare a homogeneous fuel mixture. Ignition delay times were measured from OH emission at 309 nm and from absorption of He-
Andrey Yu. Starikovskiy, Chaos, Dagaut, Dean, Edwards, Gueret, Kumar, Li, Petersen, Petersen, Pfahl, Starikovskiy, Vargaftik, Vasu, Victor P. Zhukov, Vladislav A. Sechenov, Wang, Zhukov, Zhukov, Zhukov, Zhukov, Zhukov, Zhukov   +22 more
core   +1 more source