Deep Well Disposal of In-Situ Uranium Wastewater in the Southern Duval Mineral District

1981 ◽  
Author(s):  
Thomas A. Jones
Keyword(s):  
Deep Well ◽  
Mineral District ◽  
Uranium Wastewater

scholarly journals Influence of Ecological Factors on Population Morbidity Indicators

10.12737/8227 ◽  
2015 ◽  
Vol 4 (1) ◽  
pp. 18-29
Author(s):  
Рисник ◽  
D. Risnik ◽  
Барабаш ◽  
A. Barabash ◽  
Левич ◽  
...  
Keyword(s):  
Ecological Factors ◽  
Range Limits ◽  
Environmental Standards ◽  
Normal Range ◽  
Environment Quality ◽  
Deep Well ◽  
Drinking Waters ◽  
Chemical Factors ◽  
Physical And Chemical

On the Tambov region example a research related to deep-well drinking waters’ composition influence on able-bodied population morbidity in 16 classes of diseases on the international classification has been performed. Correlation analysis, contingency tables analysis, local environmental standards calculation method (LES method) have been used for this purpose. Environment quality control in-situ-technology bases have been presented. Normal range limits of deep-well waters’ physical and chemical factors, as well as of morbidity in different classes of diseases have been calculated by means of the LES method.

Mudstone Creep Test and Numerical Stimulation of Casing Loads in Deep Well

2011 ◽  
Vol 383-390 ◽  
pp. 1684-1690
Author(s):  
Zhi Qian Xu ◽  
Xiang Zhen Yan ◽  
Fan Bu
Keyword(s):  
Creep Test ◽  
Element Model ◽  
Test System ◽  
Oil Well ◽  
Test Results ◽  
Deep Well ◽  
Numerical Stimulation ◽  
Creep Time ◽  
The Finite Element Model

In this paper, a creep test was carried out for simulating the creeping of the core of the mudstone under condition of deep formation subsurface conditions by MTS-810 test system, the creep rule and the characteristic parameters of the mudstone formation were obtained from the experiments. According to the test results, the finite element model for casings load calculation was established, and the calculation program was also written. With the program, the casing load of one western oil well was calculated in mudstone formation. The numerical simulation results show that the casing load has a relationship with phase angle θ and creep time, and the casing load is 10% greater than the stress in situ.

Rendez vous with Saturn's rings

1984 ◽  
Vol 75 ◽  
pp. 743-759 ◽  
Author(s):  
Kerry T. Nock
Keyword(s):  
Solar Energy ◽  
Electric Propulsion ◽  
Power Source ◽  
Propulsion System ◽  
Low Thrust ◽  
Ring Plane ◽  
The Earth ◽  
Total Impulse ◽  
Saturn's Rings

ABSTRACTA mission to rendezvous with the rings of Saturn is studied with regard to science rationale and instrumentation and engineering feasibility and design. Future detailedin situexploration of the rings of Saturn will require spacecraft systems with enormous propulsive capability. NASA is currently studying the critical technologies for just such a system, called Nuclear Electric Propulsion (NEP). Electric propulsion is the only technology which can effectively provide the required total impulse for this demanding mission. Furthermore, the power source must be nuclear because the solar energy reaching Saturn is only 1% of that at the Earth. An important aspect of this mission is the ability of the low thrust propulsion system to continuously boost the spacecraft above the ring plane as it spirals in toward Saturn, thus enabling scientific measurements of ring particles from only a few kilometers.

The Use of Advanced Analytical Techniques for Characterization of the Chemical, Physical, and Crystallographic Nature of a Surface

1973 ◽  
Vol 31 ◽  
pp. 132-133 ◽  
Author(s):  
R. E. Herfert
Keyword(s):  
Surface Characterization ◽  
Analytical Techniques ◽  
X Ray Diffraction ◽  
Depth Of Penetration ◽  
X Ray ◽  
The Past ◽  
Transmission Electron ◽  
Scanning Electron

Studies of the nature of a surface, either metallic or nonmetallic, in the past, have been limited to the instrumentation available for these measurements. In the past, optical microscopy, replica transmission electron microscopy, electron or X-ray diffraction and optical or X-ray spectroscopy have provided the means of surface characterization. Actually, some of these techniques are not purely surface; the depth of penetration may be a few thousands of an inch. Within the last five years, instrumentation has been made available which now makes it practical for use to study the outer few 100A of layers and characterize it completely from a chemical, physical, and crystallographic standpoint. The scanning electron microscope (SEM) provides a means of viewing the surface of a material in situ to magnifications as high as 250,000X.

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