scholarly journals PROGRAM BOLTZMANN TEMPERATURE DEPENDENCE UNTUK MENENTUKAN TEMPERATUR BAWAH PERMUKAAN AREA GEOTHERMAL MENGGUNAKAN DATA RESISTIVITAS

2020 ◽  
Vol 16 (2) ◽  
pp. 181
Author(s):  
Mohammad Hasib ◽  
Sukir Maryanto
Keyword(s):  
Temperature Dependence ◽  
Input Program

Penentuan temperatur bawah permukan merupakan hal penting diperlukan untuk mengetahui seberapa besar potensi geothermal pada suatu area. Saat ini belum ada penelitian yang berfokus pada pengembangan program yang dapat dijadikan referensi untuk mengkonversi parameter data resistivitas ke parameter temperaturbatuan. Oleh karena itu, penting dilakukan pengembangan program untuk mengetahui temperatur bawah permukaan bumi berdasarkan data resistivitas. Input program adalah data resistivitas dalam Ohm.Meter, dan output program adalah temperatur dalam Celsius. Dalam perhitungannya, program menggunakan persamaan ketergantungan suhu Boltzmann untuk perhitungan suhu batuan dengan pendekatan metode biseksi. Berdasarkan hasil uji validitas teoretis dan eksperimen, program memungkinkan dapat dijadikan referensi dalam penentuan parameter temperatur batuan dari parameter input nilai resistivitas batuan. Program memiliki beberapa kelebihan yaitu mudah dioperasikan, dan rendahnya error antara hasil program dan hasil teoretis. Penelitian ini dapat memberikan pilihan program bagi peneliti untuk mengetahui nilai temperatur batuan dari nilai resitivitas untuk mengetahui potensi panas bumi di bawah permukaan.

Temperature Dependence of the Critical Electron Dose for Fatty Acid Monolayers

1982 ◽  
Vol 40 ◽  
pp. 78-79
Author(s):  
Kenneth H. Downing ◽  
Robert M. Glaeser
Keyword(s):  
Electron Beam ◽  
Fatty Acid ◽  
Inelastic Scattering ◽  
Temperature Dependence ◽  
Structural Damage ◽  
Direct Result ◽  
Second Step ◽  
Strong Temperature Dependence ◽  
Electron Dose ◽  
Covalent Bonds

The structural damage of molecules irradiated by electrons is generally considered to occur in two steps. The direct result of inelastic scattering events is the disruption of covalent bonds. Following changes in bond structure, movement of the constituent atoms produces permanent distortions of the molecules. Since at least the second step should show a strong temperature dependence, it was to be expected that cooling a specimen should extend its lifetime in the electron beam. This result has been found in a large number of experiments, but the degree to which cooling the specimen enhances its resistance to radiation damage has been found to vary widely with specimen types.

Temperature Dependence of Magnetic Domains and Wall Structures

1972 ◽  
Vol 30 ◽  
pp. 496-497
Author(s):  
Sonoko Tsukahara ◽  
Tadami Taoka ◽  
Hisao Nishizawa
Keyword(s):  
Temperature Dependence ◽  
Domain Walls ◽  
Magnetic Domain ◽  
Iron Film ◽  
Objective Lens ◽  
Lorentz Microscopy ◽  
Domain Structures ◽  
Wall Structures ◽  
Crystal Films ◽  
Metallurgical Structure

The high voltage Lorentz microscopy was successfully used to observe changes with temperature; of domain structures and metallurgical structures in an iron film set on the hot stage combined with a goniometer. The microscope used was the JEM-1000 EM which was operated with the objective lens current cut off to eliminate the magnetic field in the specimen position. Single crystal films with an (001) plane were prepared by the epitaxial growth of evaporated iron on a cleaved (001) plane of a rocksalt substrate. They had a uniform thickness from 1000 to 7000 Å.The figure shows the temperature dependence of magnetic domain structure with its corresponding deflection pattern and metallurgical structure observed in a 4500 Å iron film. In general, with increase of temperature, the straight domain walls decrease in their width (at 400°C), curve in an iregular shape (600°C) and then vanish (790°C). The ripple structures with cross-tie walls are observed below the Curie temperature.

Temperature dependence of generation-recombination noise in p-n junctions

2002 ◽  
Vol 12 (3) ◽  
pp. 71-74
Author(s):  
J. A. Jiménez Tejada ◽  
A. Godoy ◽  
A. Palma ◽  
P. Cartujo
Keyword(s):  
Temperature Dependence

Temperature dependence of spin fluctuation scattering of neutrons on pyrrhotite

1964 ◽  
Vol 25 (5) ◽  
pp. 634-641 ◽  
Author(s):  
Sz. Kraśnicki ◽  
A. Wanic ◽  
Ž. Dimitrijević ◽  
R. Maglić ◽  
V. Marković ◽  
...  
Keyword(s):  
Temperature Dependence ◽  
Spin Fluctuation

TEMPERATURE DEPENDENCE OF PHOTOCONDUCTIVITY IN CdCr2Se4

1971 ◽  
Vol 32 (C1) ◽  
pp. C1-934-C1-936 ◽  
Author(s):  
S. B. BERGER ◽  
A. AMITH
Keyword(s):  
Temperature Dependence

ON THE TEMPERATURE DEPENDENCE OF PINNING BY IRRADIATION-INDUCED POINT DEFECTS IN COPPER

1971 ◽  
Vol 32 (C2) ◽  
pp. C2-151-C2-152
Author(s):  
P. WINTERHAGER ◽  
G. ROTH ◽  
R. JOHN ◽  
K. LÜCKE
Keyword(s):  
Temperature Dependence ◽  
Point Defects
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