Dynamics of hollow spherical shell under the action of thermal shock

1986 ◽  
Vol 22 (5) ◽  
pp. 409-414 ◽  
Author(s):  
V. A. Krys'ko ◽  
G. M. Guba ◽  
V. G. Fomin
Keyword(s):  
Spherical Shell ◽  
Thermal Shock ◽  
Hollow Spherical Shell

Three-dimensional carbon boron nitrides with a broken, hollow, spherical shell for water treatment

RSC Advances ◽  
2016 ◽  
Vol 6 (82) ◽  
pp. 78252-78256 ◽  
Author(s):  
Huichao Jia ◽  
Jie Li ◽  
Zhenya Liu ◽  
Ruoyuan Gao ◽  
Saleem Abbas ◽  
...  
Keyword(s):  
Water Treatment ◽  
Spherical Shell ◽  
Water Purification ◽  
Three Dimensional ◽  
Dye Adsorption ◽  
Adsorption Rate ◽  
Boron Nitrides ◽  
Hollow Spherical Shell

Broken hollow spherical shell like 3D C-BNs with a very fast dye adsorption rate for water purification.

A controller for safe, convenient operation of LaB6 emitters on electron-beam instruments

1983 ◽  
Vol 41 ◽  
pp. 408-409
Author(s):  
W. J. Abramson ◽  
H. W. Estry ◽  
L. F. Allard
Keyword(s):  
Electron Beam ◽  
Control System ◽  
Thermal Shock ◽  
Appropriate Care ◽  
Electron Guns ◽  
Tungsten Filaments ◽  
Order Of Magnitude ◽  
Main Components

LaB6 emitters are becoming increasingly popular as direct replacements for tungsten filaments in the electron guns of modern electron-beam instruments. These emitters offer order of magnitude increases in beam brightness, and, with appropriate care in operation, a corresponding increase in source lifetime. They are, however, an order of magnitude more expensive, and may be easily damaged (by improper vacuum conditions and thermal shock) during saturation/desaturation operations. These operations typically require several minutes of an operator's attention, which becomes tedious and subject to error, particularly since the emitter must be cooled during sample exchanges to minimize damage from random vacuum excursions. We have designed a control system for LaBg emitters which relieves the operator of the necessity for manually controlling the emitter power, minimizes the danger of accidental improper operation, and makes the use of these emitters routine on multi-user instruments.Figure 1 is a block schematic of the main components of the control system, and Figure 2 shows the control box.

Degradation Behavior of TiN Coatings with Different Thicknesses after a Pulsed Laser Thermal Shock Test

2013 ◽  
Vol 51 (10) ◽  
pp. 729-734 ◽  
Author(s):  
Seol Jeon ◽  
Youngkue Choi ◽  
Hyun-Gyoo Shin ◽  
Hyun Park ◽  
Heesoo Lee ◽  
...  
Keyword(s):  
Thermal Shock ◽  
Pulsed Laser ◽  
Thermal Shock Test ◽  
Degradation Behavior ◽  
Shock Test ◽  
Tin Coatings
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