scholarly journals Measurement of the Absolute Value of Specific Heat by Using AC-Calorimeter under High Pressure up to 10 GPa and Low Temperature down to 0.3 K

2015 ◽  
Vol 25 (4) ◽  
pp. 283-291
Author(s):  
Kazunori UMEO
Keyword(s):  
High Pressure ◽  
Low Temperature ◽  
Specific Heat ◽  
Absolute Value ◽  
The Absolute

Low temperature specific heat of polycrystalline UGe2 at high pressure

2002 ◽  
Vol 312-313 ◽  
pp. 112-114 ◽  
Author(s):  
R Vollmer ◽  
C Pfleiderer ◽  
H.v Löhneysen ◽  
E.D Bauer ◽  
M.B Maple
Keyword(s):  
High Pressure ◽  
Low Temperature ◽  
Specific Heat ◽  
Low Temperature Specific Heat

Low-temperature specific heat of the oxide superconductors under high pressure

2011 ◽  
Vol 43 (3) ◽  
pp. 726-729 ◽  
Author(s):  
T. Isono ◽  
D. Iguchi ◽  
Y. Machida ◽  
K. Izawa ◽  
B. Salce ◽  
...  
Keyword(s):  
High Pressure ◽  
Low Temperature ◽  
Specific Heat ◽  
Oxide Superconductors ◽  
Low Temperature Specific Heat

Low temperature specific heat of the β-pyrochlore superconductors under high pressure

2010 ◽  
Vol 470 ◽  
pp. S721-S722 ◽  
Author(s):  
T. Isono ◽  
D. Iguchi ◽  
Y. Machida ◽  
K. Izawa ◽  
B. Salce ◽  
...  
Keyword(s):  
High Pressure ◽  
Low Temperature ◽  
Specific Heat ◽  
Low Temperature Specific Heat

High pressure studies of electron mobility in heavily doped GaAs: fitting of the absolute value

1991 ◽  
Vol 6 (10) ◽  
pp. 969-972 ◽  
Author(s):  
L Dmowski ◽  
P Wisniewski ◽  
C Skierbiszewski ◽  
T Suski ◽  
P J van der Wel ◽  
...  
Keyword(s):  
High Pressure ◽  
Electron Mobility ◽  
Absolute Value ◽  
High Pressure Studies ◽  
Heavily Doped ◽  
The Absolute

scholarly journals Design and fabrication of sintered Nd-Fe-B magnets with a low temperature coefficient of intrinsic coercivity

2009 ◽  
Vol 41 (1) ◽  
pp. 91-99 ◽  
Author(s):  
X.G. Cui ◽  
M. Yan ◽  
T.Y. Ma ◽  
W. Luo ◽  
S.J. Tu
Keyword(s):  
Low Temperature ◽  
Temperature Coefficient ◽  
Influencing Factors ◽  
Temperature Interval ◽  
Magnetocrystalline Anisotropy ◽  
Anisotropy Field ◽  
Absolute Value ◽  
Temperature Coefficients ◽  
Intrinsic Coercivity ◽  
The Absolute

To decrease the temperature coefficients of sintered Nd-Fe-B magnets, the influencing factors on temperature coefficients, especially the reversible temperature coefficient ? of intrinsic coercivity Hcj, were analyzed. The results showed that the absolute value of ? decreased with increasing Hcj and also the ratio of microstructure parameter c to Neff, indicating that the increase of magnetocrystalline anisotropy field HA and c/Neff can effectively decrease the absolute value of ?. On the basis of this analysis, a sintered Nd-Fe-B magnet with a low temperature coefficient of Hcj was fabricated through composition design, and the value of ? was only -0.385%/?C in the temperature interval of 20-150?C.

scholarly journals XXVIII.—On the Computation of the Specific Heat of Liquid Water at various Temperatures, from the Experiments of M. Regnault

1853 ◽  
Vol 20 (3) ◽  
pp. 441-444
Author(s):  
William John Macquorn Rankine
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Low Temperature ◽  
Specific Heat ◽  
Liquid Water ◽  
Hot Water ◽  
Different Temperatures ◽  
Apparent Specific Heat ◽  
The Mean ◽  
Great Force

Correction of M. Regnault's Experiments for the Effect of Agitation.The discovery by Mr Joule of the fact, that mechanical power expended in the agitation of liquids is converted into heat as the visible agitation subsides, renders a certain correction necessary in calculating the results of experiments on specific heat in which such agitation has occurred.Of this kind are the experiments of M. Regnault on the apparent specific heat of liquid water at different temperatures. Water at a high temperature, T3, was emitted from a boiler into a calorimeter containing water at a low temperature, Tl, and the resulting intermediate temperature of the whole mass, T2, was used as the means of calculating the ratio of the mean specific heat of water between T3 and T2, to its mean specific heat between T2 and T1. Now, the upper part of the boiler contained steam at a high pressure, so that the hot water was expelled with great force.

Bulk standards for low-temperature biological x-ray microanalysis

1984 ◽  
Vol 42 ◽  
pp. 282-283
Author(s):  
P. Echlin ◽  
M. McKoon ◽  
E.S. Taylor ◽  
C.E. Thomas ◽  
K.L. Maloney ◽  
...  
Keyword(s):  
Phase Separation ◽  
Low Temperature ◽  
Analytical Method ◽  
Salt Solutions ◽  
Absolute Concentration ◽  
Cooling Process ◽  
X Ray ◽  
The Absolute ◽  
Analytical Procedures ◽  
Electrical Conductors

Although sections of frozen salt solutions have been used as standards for x-ray microanalysis, such solutions are less useful when analysed in the bulk form. They are poor thermal and electrical conductors and severe phase separation occurs during the cooling process. Following a suggestion by Whitecross et al we have made up a series of salt solutions containing a small amount of graphite to improve the sample conductivity. In addition, we have incorporated a polymer to ensure the formation of microcrystalline ice and a consequent homogenity of salt dispersion within the frozen matrix. The mixtures have been used to standardize the analytical procedures applied to frozen hydrated bulk specimens based on the peak/background analytical method and to measure the absolute concentration of elements in developing roots.

Sign in / Sign up

Export Citation Format

Share Document