Thermal Conductivity of Solar System Ices, with Special Reference to Martian Polar Caps

1998 ◽  
pp. 33-62 ◽  
Author(s):  
Russell G. Ross ◽  
Jeffrey S. Kargel
Keyword(s):  
Thermal Conductivity ◽  
Solar System ◽  
Special Reference ◽  
Polar Caps

REMARKS ON THE ANOMALOUS BEHAVIOR OF ALLOYS CONTAINING TRACES OF MANGANESE OR SIMILAR ELEMENTS

1956 ◽  
Vol 34 (12A) ◽  
pp. 1281-1284 ◽  
Author(s):  
C. J. Gorter ◽  
G. J. van den Berg ◽  
J. de Nobel
Keyword(s):  
Thermal Conductivity ◽  
Electrical Conductivity ◽  
Special Reference ◽  
Hall Effect ◽  
Low Temperatures ◽  
Anomalous Behavior ◽  
Rapid Decrease ◽  
Magnetic Resonances ◽  
Resistance Minimum ◽  
Similar Elements

The anomalous behavior of alloys containing traces of manganese and similar elements is rapidly reviewed as to electrical conductivity, magnetoresistance, susceptibility, magnetic resonances, thermoelectricity, specific heat, thermal conductivity, and Hall effect. Special reference is given to recent data obtained in Leyden. It is argued that, while the rapid decrease of the resistance sometimes occurring at very low temperatures apparently must be attributed to some kind of antiferromagnetic alignment, the resistance minimum, as well as the anomalies in thermoelectricity and the Hall effect, might be due to gaps at the crystalline boundaries.

THE TRANSIENT PLANE SOURCE TECHNIQUE TO MEASURE THERMAL CONDUCTIVITY OF CLAYS OF BIKANER REGION

2013 ◽  
Vol 22 ◽  
pp. 42-50
Author(s):  
M. S. SHEKHAWAT ◽  
S. K. TAK ◽  
R. MANGAL
Keyword(s):  
Thermal Conductivity ◽  
Thermal Diffusivity ◽  
Special Reference ◽  
Room Temperature ◽  
Normal Pressure ◽  
Plane Source ◽  
Transient Plane Source ◽  
Maximum Value ◽  
Transient Plane Source Technique

Thermal conductivity and thermal diffusivity of blended clays have been studied with special reference to Ukrainian clay. The blends were made of three different clays available locally in western part of Rajasthan. Thermal conductivity and thermal diffusivity were determined using the transient plane source (TPS) technique at room temperature and normal pressure. It was found that thermal conductivity and thermal diffusivity of the blends reported maximum at temperature 1200° C and near in the values of Ukrainian clay. The thermal conductivity of blend B2 reported maximum value (1.29 W/m-k) in the present study.

scholarly journals On the Cylindrical Probe Method of Measuring Thermal Conductivity with Special Reference to Soils. I. Extension of Theory and Discussion of Probe Characteristics

1958 ◽  
Vol 11 (2) ◽  
pp. 255 ◽  
Author(s):  
DA de Vries ◽  
AJ Peck
Keyword(s):  
Thermal Conductivity ◽  
Contact Resistance ◽  
Special Reference ◽  
Line Source ◽  
Thermal Contact Resistance ◽  
Thermal Contact ◽  
Complete Agreement ◽  
Finite Conductivity ◽  
Cylindrical Probe ◽  
Infinite Conductivity

The theory of cylindrical probes for measuring thermal conductivity is extended to the case of a probe of finite conductivity containing a line source at its centre. This provides a more realistic approximation to most actual probes than the theory for a probe of infinite conductivity developed by other authors. New experimental results are presented which are in complete agreement with theory It is shown how an estimate can be obtained of the magnitude of a possible thermal contact resistance between the probe and the medium and how its influence on the measured conductivity can be assessed.

scholarly journals On the Cylindrical Probe Method of Measuring Thermal Conductivity with Special Reference to Soils. II. Analysis of Moisture Effects

1958 ◽  
Vol 11 (3) ◽  
pp. 409 ◽  
Author(s):  
DA de Vries ◽  
AJ Peck
Keyword(s):  
Thermal Conductivity ◽  
Porous Media ◽  
Special Reference ◽  
Probe Method ◽  
Temperature Gradients ◽  
Conductivity Measurements ◽  
Moisture Movement ◽  
Cylindrical Probe ◽  
Moisture Effects

Thermal conductivity measurements in unsaturated moist porous media are complicated by the action of gravity on the moisture and by moisture movement caused by temperature gradients. The effects of these factors are discussed for the cylindrical probe method.

The Origin of the Moon

1962 ◽  
Vol 14 ◽  
pp. 149-155 ◽  
Author(s):  
E. L. Ruskol
Keyword(s):  
Chemical Composition ◽  
Solar System ◽  
The Moon ◽  
The Earth ◽  
The Difference ◽  
Origin Of The Moon

The difference between average densities of the Moon and Earth was interpreted in the preceding report by Professor H. Urey as indicating a difference in their chemical composition. Therefore, Urey assumes the Moon's formation to have taken place far away from the Earth, under conditions differing substantially from the conditions of Earth's formation. In such a case, the Earth should have captured the Moon. As is admitted by Professor Urey himself, such a capture is a very improbable event. In addition, an assumption that the “lunar” dimensions were representative of protoplanetary bodies in the entire solar system encounters great difficulties.

The Origin of the Moon and its Relationship to the Origin of the Solar System

1962 ◽  
Vol 14 ◽  
pp. 133-148 ◽  
Author(s):  
Harold C. Urey
Keyword(s):  
Solar System ◽  
The Moon ◽  
The Past ◽  
The Earth ◽  
Short Period ◽  
Origin Of The Moon

During the last 10 years, the writer has presented evidence indicating that the Moon was captured by the Earth and that the large collisions with its surface occurred within a surprisingly short period of time. These observations have been a continuous preoccupation during the past years and some explanation that seemed physically possible and reasonably probable has been sought.

Stellar Evolution

1962 ◽  
Vol 11 (02) ◽  
pp. 137-143
Author(s):  
M. Schwarzschild
Keyword(s):  
Solar System ◽  
Stellar Evolution ◽  
Space Craft ◽  
New Techniques ◽  
Substantial Body ◽  
Individual Stars ◽  
The Past ◽  
Evolution Of Galaxies ◽  
History Of ◽  
Fast Flow

It is perhaps one of the most important characteristics of the past decade in astronomy that the evolution of some major classes of astronomical objects has become accessible to detailed research. The theory of the evolution of individual stars has developed into a substantial body of quantitative investigations. The evolution of galaxies, particularly of our own, has clearly become a subject for serious research. Even the history of the solar system, this close-by intriguing puzzle, may soon make the transition from being a subject of speculation to being a subject of detailed study in view of the fast flow of new data obtained with new techniques, including space-craft.

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