scholarly journals Report on International School and Workshop on Matter in Extreme Conditions from MATerial Science to PLAnetary Physics

2015 ◽  
Vol 25 (2) ◽  
pp. 185-186
Author(s):  
Yuhei UMEDA
Keyword(s):  
Material Science ◽  
International School ◽  
Extreme Conditions

Numerical Research on Implosion of Condensed Liners Used in Study of Shock Adiabat of Materials

2013 ◽  
Vol 477-478 ◽  
pp. 1419-1422
Author(s):  
Gang Hua Wang ◽  
Ming Xian Kan ◽  
Hai Long Zhao
Keyword(s):  
Material Properties ◽  
Material Science ◽  
High Energy Physics ◽  
Shock Adiabat ◽  
High Energy ◽  
Extreme Conditions ◽  
Great Role ◽  
Interface Instability ◽  
Numerical Research ◽  
Energy Physics

Research on material properties under extreme conditions plays a great role in material science and high energy physics. Condensed liner accelerated by powerful pulse facilities has been used to compress the target liner. The motion of liner implosion driven by a pulse of current of several microseconds rise time and 70~90 MA has been numerically studied in this paper. Liners state and velocities are discussed. Results of 2D magnetohydrodynamics liner implosion computations are presented in order to study the development of interface instability.

Application of electron holography to material science studies on magnetic domain states of small particles

1993 ◽  
Vol 51 ◽  
pp. 1028-1029
Author(s):  
T. Hirayama ◽  
Q. Ru ◽  
T. Tanji ◽  
A. Tonomura
Keyword(s):  
Magnetic Field ◽  
Material Science ◽  
Science Studies ◽  
Phase Distribution ◽  
Carbon Film ◽  
Objective Lens ◽  
Electron Holography ◽  
Transform Method ◽  
Transmission Electron ◽  
Thin Carbon

The observation of small magnetic materials is one of the most important applications of electron holography to material science, because interferometry by means of electron holography can directly visualize magnetic flux lines in a very small area. To observe magnetic structures by transmission electron microscopy it is important to control the magnetic field applied to the specimen in order to prevent it from changing its magnetic state. The easiest method is tuming off the objective lens current and focusing with the first intermediate lens. The other method is using a low magnetic-field lens, where the specimen is set above the lens gap.Figure 1 shows an interference micrograph of an isolated particle of barium ferrite on a thin carbon film observed from approximately [111]. A hologram of this particle was recorded by the transmission electron microscope, Hitachi HF-2000, equipped with an electron biprism. The phase distribution of the object electron wave was reconstructed digitally by the Fourier transform method and converted to the interference micrograph Fig 1.

38. The Attenuation of Hearing Protectors in Extreme Conditions

2002 ◽  
Author(s):  
E. Toppila ◽  
J. Starck ◽  
I. Pyykkö
Keyword(s):  
Extreme Conditions ◽  
Hearing Protectors
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