Results 91 to 100 of about 1,229,375 (235)

Self-sustained combustion propagation mechanism and critical thresholds of Al/PTFE composite under laser ignition

Results in Engineering
In this study, a systematic experimental investigation and theoretical analysis are conducted on the self-sustained combustion process of Al/PTFE (aluminum/polytetrafluoroethylene) composite under laser ignition.
Tianyi Wang, Yuan He, Yansong Yang, Weixi Tian, Chuanting Wang, Lei Guo, Yong He   +6 more
doaj   +1 more source

In situ mapping of iron oxidation in laminar metal fuel flames using X-ray absorption spectroscopy. [PDF]

J Synchrotron Radiat
For the first time an iron metal flame has been mapped by in situ X‐ray absorption spectroscopy. Strong gradients in oxidation state and phase composition across the metallic core and the flame front were found with FeO peaking at the visible flame front and Fe3O4 forming further beyond.Metal fuels such as iron are promising carbon‐free energy carriers
Braun L, Hagen FP, Fedoryk M, Seitz M, Stelzner B, Trimis D, Grunwaldt JD, Doronkin DE.   +7 more
europepmc   +2 more sources

Mass Spectrometry in Authentication and Forensic Approaches for Determining the Origin of Hazardous Chemicals

Mass Spectrometry Reviews, EarlyView.
ABSTRACT Identification of a chemical agent yields insights into its physicochemical properties. By examining the intrinsic characteristics and environment of a compound, information about its history can be gathered. The main objective of authentication/forensic approaches to chemicals is to trace the history of the compound's origin, regardless of ...
Carla Orlandi, Grégoire Delaporte, Christine Albaret, Emmanuel Joubert, Anne Bossée, Emilien L. Jamin, Laurent Debrauwer   +6 more
wiley   +1 more source

Optimizing Ball‐Milled Composites for Fast Energy Release Under Shock Compression

Propellants, Explosives, Pyrotechnics, EarlyView.
ABSTRACT Microparticle additives containing both Al fuel and oxidizer, fabricated by arrested reactive milling (ARM), could potentially increase the power of energetic materials such as HMX because they contain premixed fuel and oxidizer. Optimizing shock reactivity requires exploring a vast parametric space encompassing composition, milling parameters
Siva Kumar Valluri, Edward L. Dreizin, Dana D. Dlott   +2 more
wiley   +1 more source

Simulation of laser-driven cratering experiments on aluminum [PDF]

, 2019
After a brief description of the physical principles involved in the cratering process, the authors present a specific methodology to simulate laser-driven cratering experiments performed with a long pulse duration (100 ns) and a small focal spot ...
Jean-Luc Rullier, Laurent Videau, Laurent Berthe, AUBERT, Bertrand, LESCOUTE, Emilien, David Hebert, BERTHE, Laurent, VIDEAU, Laurent, HEBERT, David, RULLIER, Jean-Luc, Emilien Lescoute, Bertrand Aubert   +11 more
core   +1 more source

Photo‐responsive carbon dots for pyroptosis‐mediated anti‐tumor application

Responsive Materials, EarlyView.
Photo‐responsive CDs generate ROS to induce tumor cell pyroptosis, thereby stimulating antitumor immunity. Abstract Pyroptosis refers to a kind of lytic programmed cell death, characterized by the release of pro‐inflammatory cytokines during the process. Owing to its immune response stimulation ability, pyroptosis has garnered considerable attention in
Lingyun Li, Xue Wu, Zekun Yan, Jun Wu, Caishi Huang, Songnan Qu   +5 more
wiley   +1 more source

Laser-Stimulated Ignition in a Homogeneous Charge Compression Ignition Engine

, 2004
A laser-induced spark was generated inside the combustion chamber of a reciprocating engine running in Homogeneous Charge Compression Ignition (HCCI) mode to investigate the influence of the plasma on combustion performance.
E. Wintner, A. Hultqvist, M. Lackner, Lackner, Max, H. Kopecek, Hultqvist, Anders,, F. Winter, Kopecek, Herbert, Winter, Franz, Wintner, Ernst   +9 more
core   +1 more source

Advances in the national inertial fusion program of China

EPJ Web of Conferences, 2013
The planned inertial confinement fusion (ICF) ignition in China in around 2020 is to be accomplished in three steps. The first is carrying out target physics experiments in the existing laser facilities SG-II, SG-IIIP and SG-IIU (operating in 2012) of ...
He X.T., Zhang W.Y.
doaj   +1 more source

Laser ignition of dust clouds [PDF]

Journal de Physique IV (Proceedings), 2002
In a previous paper [1], the possibility of igniting a combustible dust-air mixtures by a light beam in contact with a substrate made of an inert matter and heated by a light beam was investigated. The objective of the present work is to produce more data on the subject.
openaire   +2 more sources

Responsive nanoheterojunctions for built‐in electric field‐promoted cascade tumor targeting and cuproptosis‐based therapy

Responsive Materials, EarlyView.
Nanoheterojunctions have been synthesized as responsive biomaterials for cascade targeting of tumor cells and mitochondria, ROS‐mediated apoptosis and Cu‐promoted cuproptosis. And drug‐device‐field integration as an advanced paradigm of tumor treatment was employed for photo‐triggered tumor cell elimination in vitro and lesion eradication in vivo ...
Zhe Liu, Yandai Lin, Xuehui Li, Fengqi Xuan   +3 more
wiley   +1 more source