Results 21 to 30 of about 491,361 (291)

Observations and Interpretation of a Low Coronal Shock Wave Observed in the EUV by the SDO/AIA

, 2011
Taking advantage of both the high temporal and spatial resolution of the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory (SDO), we studied a limb coronal shock wave and its associated extreme ultraviolet (EUV) wave that ...
Attrill, Attrill, Biesecker, Chen, Chen, Chen, Cohen, David Long, Delannée, Downs, Gallagher, Gopalswamy, Gopalswamy, Gopalswamy, Huadong Chen, John C. Raymond, Jun Lin, Kienreich, Kozarev, Lemen, Leon Golub, Lin, Liu, Long, Ma, Ma, Nelson, Ofman, Ontiveros, Paola Testa, Paolo Grigis, Patsourakos, Priest, Schmidt, Sittler, Suli Ma, Title, Veronig, Veronig, Vourlidas, Wang, Wang, Wild   +42 more
core   +1 more source

In situ measurement of the particle size distribution of the fragmentation product of laser-shock-melted aluminum using in-line picosecond holography

AIP Advances, 2016
The dynamic fragmentation of shock-melted metal is a topic of increasing interest in shock physics. However, high-quality experimental studies of the phenomenon are limited, and data that are essential for developing predictive models of the phenomenon ...
Ying-Hua Li, Yu Zhao, Xue-Mei Li, Zu-Gen Zhang, Xiang-Ping Ye, Jie Zhong, Ling-Cang Cai, Lin Zhang   +7 more
doaj   +1 more source

A Submicrosecond-Response Ultrafast Microwave Ranging Method Based on Optically Generated Frequency-Modulated Pulses

Sensors
An ultrafast microwave ranging method based on optically generated frequency-modulated microwave pulses is proposed in this study. The theoretical analysis demonstrated that nanosecond-scale linear frequency modulation microwave pulse can be obtained by ...
Yifei Sun, Yongchao Chen, Longhuang Tang, Xing Jia, Heli Ma, Xiang Wang, Long Chen, Shenggang Liu, Tianjiong Tao, Jian Wu, Chengjun Li, Shuanyu Liu, Weilu Chen, Wei Gu, Jia Shi, Jidong Weng   +15 more
doaj   +1 more source

Investigation on combustion reaction evolution model of charge with mass inertia constraint via non-shock ignition

Baozha yu Chongji
To develop an engineering model based on the physical mechanism of the non-shock initiation reaction of structural charge, which can be used to describe the reaction evolution process and quantify the reaction intensity for evaluating weapons and ...
Chuanyu PAN, Xilong HUANG, Ping LI, Tao LI, Hua FU, Hailin SHANG   +5 more
doaj   +1 more source

Effect of Porosity on Dynamic Response of Additive Manufacturing Ti-6Al-4V Alloys

Micromachines, 2022
Additive manufacturing is a rapidly developing manufacturing technology of great potential for applications. One of the merits of AM is that the microstructure of manufactured materials can be actively controlled to meet engineering requirements. In this
Yihang Cui, Jiacheng Cai, Zhiguo Li, Zhenyu Jiao, Ling Hu, Jianbo Hu   +5 more
doaj   +1 more source

Pseudo-shock waves and their interactions in high-speed intakes [PDF]

, 2016
In an air-breathing engine the flow deceleration from supersonic to subsonic conditions takes places inside the isolator through a gradual compression consisting of a series of shock waves.
Gnani, F., Kontis, K., Zare-Behtash, H.
core   +1 more source

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

Advanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti, Finn‐Lennard Janthur, Selina Raumel, Sascha Jan Zimmermann, Sarah Seffer, René Gustus, Sebastian Herbst, Marc C. Wurz, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Florian Nürnberger   +11 more
wiley   +1 more source

Upconversion Photonic Doppler Velocimetry Based on Stimulated Brillouin Scattering

Photonics
Optical up-conversion photonic Doppler velocimetry (PDV) based on stimulated Brillouin Scattering (SBS) with an all-fiber link structure is proposed in this article. Because SBS limits the laser power transmitted by a fiber over long distances, the probe
Long Chen, Cangli Liu, Heli Ma, Longhuang Tang, Xing Jia, Tianjiong Tao, Shenggang Liu, Yongchao Chen, Xiang Wang, Jian Wu, Chengjun Li, Jidong Weng   +11 more
doaj   +1 more source

Predicted reentrant melting of dense hydrogen at ultra-high pressures

Scientific Reports, 2016
The phase diagram of hydrogen is one of the most important challenges in high-pressure physics and astrophysics. Especially, the melting of dense hydrogen is complicated by dimer dissociation, metallization and nuclear quantum effect of protons, which ...
Hua Y. Geng, Q. Wu
doaj   +1 more source

Molecular dynamics simulations of an anomalous response of diamond to shock compression [PDF]

, 2007
We performed molecular dynamics simulations of shock wave propagation in diamond in the [110] crystallographic direction and observed an anomalous response of the material.
Elert, M. L., McLaughlin, K., Oleynik, I. I., White, C. T., Zybin, S. V.   +4 more
core