Quantitative study on area fraction of precipitated carbides of HP40Nb steel as a function of service period

2021 ◽  
Author(s):  
Hyo Jung Bang ◽  
Thi Giang Le ◽  
Joo Yong Kim ◽  
Hyung Ki Ryu ◽  
Kee Bong Yoon
Keyword(s):  
Quantitative Study ◽  
Area Fraction ◽  
Service Period

Electron-Mirror Microscopic Aspects of Ferroelectric Domains of BaTiO3 And Ca2Sr (C2H5CO2)6

1970 ◽  
Vol 28 ◽  
pp. 478-479
Author(s):  
Teruo Someya ◽  
Jinzo Kobayashi
Keyword(s):  
Surface Layer ◽  
Electric Fields ◽  
Quantitative Study ◽  
Recent Progress ◽  
Ferroelectric Domain ◽  
Resolving Power ◽  
Surface Pattern ◽  
Crystal Surfaces ◽  
One Dimensional ◽  
Ferroelectric Domains

Recent progress in the electron-mirror microscopy (EMM), e.g., an improvement of its resolving power together with an increase of the magnification makes it useful for investigating the ferroelectric domain physics. English has recently observed the domain texture in the surface layer of BaTiO3. The present authors ) have developed a theory by which one can evaluate small one-dimensional electric fields and/or topographic step heights in the crystal surfaces from their EMM pictures. This theory was applied to a quantitative study of the surface pattern of BaTiO3).

A Quantitative Study of the Gastric Secretory Response to Sham Feeding in a Human Subject

1950 ◽  
Vol 16 (1) ◽  
pp. 104-116 ◽  
Author(s):  
Henry D. Janowitz ◽  
Franklin Hollander ◽  
David Orringer ◽  
Milton H. Levy ◽  
Asher Winkelstein ◽  
...  
Keyword(s):  
Quantitative Study ◽  
Human Subject ◽  
Secretory Response ◽  
Sham Feeding

Relationship Among Flow, Concentration, and Attention Span: A Quantitative Study

2011 ◽  
Author(s):  
Douglas R. Polster ◽  
Stephen A. Russo ◽  
David E. Richie ◽  
Susana Quintana Marikle
Keyword(s):  
Quantitative Study ◽  
Attention Span

XRMS Quantitative Study at the L2and L3Edges of Nd in Nd2Fe14B

1997 ◽  
Vol 7 (C2) ◽  
pp. C2-437-C2-438 ◽  
Author(s):  
F. Bartolomé ◽  
J. M. Tonnerre ◽  
D. Raoux ◽  
J. Chaboy ◽  
L. M. Garcia ◽  
...  
Keyword(s):  
Quantitative Study

The Influence Of The Led Luminaires Electrical Parameters On Their Correlated Colour Temperature During Operation Mode

2020 ◽  
pp. 89-96
Author(s):  
Sergei S. Kapitonov ◽  
Alexei S. Vinokurov ◽  
Sergei V. Prytkov ◽  
Sergei Yu. Grigorovich ◽  
Anastasia V. Kapitonova ◽  
...  
Keyword(s):  
Operation Mode ◽  
Light Sources ◽  
Electrical Parameters ◽  
Colour Temperature ◽  
Radiation Spectra ◽  
Service Period ◽  
Close Proximity ◽  
Definition Of ◽  
Comprehensive Study

The article describes the results of comprehensive study aiming at increase of quality of LED luminaires and definition of the nature of changes in their correlated colour temperature (CCT) in the course of operation. Dependences of CCT of LED luminaires with remote and close location of phosphor for 10 thousand hours of operation in different electric modes were obtained; the results of comparison between the initial and final radiation spectra of the luminaires are presented; using mathematical statistics methods, variation of luminaire CCT over the service period claimed by the manufacturer is forecast; the least favourable electric operation modes with the highest CCT variation observed are defined. The obtained results have confirmed availability of the problem of variation of CCT of LED luminaires during their operation. Possible way of its resolution is application of more qualitative and therefore expensive LEDs with close proximity of phosphor or LEDs with remote phosphor. The article may be interesting both for manufacturers and consumers of LED light sources and lighting devices using them.

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