scholarly journals Flexible over-moded resonators based on P(VDF-TrFE) thin films with very high temperature coefficient

2013 ◽  
Vol 60 (10) ◽  
pp. 2039-2043 ◽  
Author(s):  
Van Nguyen ◽  
Laurent Badie ◽  
Emmanuel Sénéchault ◽  
Eloi Blampain ◽  
Brice Vincent ◽  
...  
Keyword(s):  
Thin Films ◽  
High Temperature ◽  
Temperature Coefficient ◽  
Very High

scholarly journals The kinetics of the lysis of Bacterium coli by glycine

1951 ◽  
Vol 49 (2-3) ◽  
pp. 169-174 ◽  
Author(s):  
J. Gordon ◽  
R. A. Hall ◽  
L. H. Stickland
Keyword(s):  
High Temperature ◽  
Latent Period ◽  
Temperature Coefficient ◽  
Maximum Rate ◽  
Bacterial Suspension ◽  
Glycine Concentration ◽  
Wide Range ◽  
Kinetics Of ◽  
Very High

The lysis of Bacterium coli suspensions brought about by glycine shows the following characteristics:(1) There is a latent period of 2 hr., followed by a rapid lysis reaching a maximum in about 8 hr.(2) The extent of the lysis is independent of the dilution of the bacterial suspension over a wide range.(3) The extent of the lysis increases with the glycine concentration up to 10M, but is approaching a limit at this concentration.(4) The lysis is negligible below pH 5 and above pH 10, and shows a maximum rate in the region of pH 6–5–8–5.(5) The rate of lysis has a very high temperature coefficient (Q10 of the order of 5).

Use of LaB6 for a High Quality, Small Energy Spread Beam in an Electron Velocity Spectrometer

1976 ◽  
Vol 34 ◽  
pp. 534-535 ◽  
Author(s):  
P. E. Batson ◽  
C. H. Chen ◽  
J. Silcox
Keyword(s):  
High Temperature ◽  
Energy Resolution ◽  
Electron Velocity ◽  
Electronic Excitations ◽  
Small Energy ◽  
Small Intensity ◽  
Good Energy ◽  
Spectrometer System ◽  
Electron Energy Loss ◽  
Very High

Electron energy loss experiments combined with microscopy have proven to be a valuable tool for the exploration of the structure of electronic excitations in materials. These types of excitations, however, are difficult to measure because of their small intensity. In a usual situation, the filament of the microscope is run at a very high temperature in order to present as much intensity as possible at the specimen. This results in a degradation of the ultimate energy resolution of the instrument due to thermal broadening of the electron beam.We report here observations and measurements on a new LaB filament in a microscope-velocity spectrometer system. We have found that, in general, we may retain a good energy resolution with intensities comparable to or greater than those available with the very high temperature tungsten filament. We have also explored the energy distribution of this filament.

TEM study of boron additions to cobalt aluminide

1988 ◽  
Vol 46 ◽  
pp. 546-547
Author(s):  
Gerald B. Feldewerth
Keyword(s):  
High Temperature ◽  
Turbine Engines ◽  
Major Drawback ◽  
University Of Missouri ◽  
Specific Strength ◽  
Aerospace Applications ◽  
Wide Range ◽  
Ordered Alloys ◽  
The University ◽  
Very High

In recent years an increasing emphasis has been placed on the study of high temperature intermetallic compounds for possible aerospace applications. One group of interest is the B2 aiuminides. This group of intermetaliics has a very high melting temperature, good high temperature, and excellent specific strength. These qualities make it a candidate for applications such as turbine engines. The B2 aiuminides exist over a wide range of compositions and also have a large solubility for third element substitutional additions, which may allow alloying additions to overcome their major drawback, their brittle nature.One B2 aluminide currently being studied is cobalt aluminide. Optical microscopy of CoAl alloys produced at the University of Missouri-Rolla showed a dramatic decrease in the grain size which affects the yield strength and flow stress of long range ordered alloys, and a change in the grain shape with the addition of 0.5 % boron.

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