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Articles 39061 - 39090 of 39805

Full-Text Articles in Civil and Environmental Engineering

Electrowinning Versus Electrorefining Of Blister Copper, Frank J. Vorell May 1951

Electrowinning Versus Electrorefining Of Blister Copper, Frank J. Vorell

Bachelors Theses and Reports, 1928 - 1970

In the following sections of this report, I will discuss as fully as possible both the theo­retical and practical aspects of the roasting, leaching, and electrowinning steps, as well as the economic considerations of the process. The results of my laboratory work will, of course, be integrated to the process.


Ferromagnetic Alloys In The System Cu-Mn-Zn, W. Michael Yim May 1951

Ferromagnetic Alloys In The System Cu-Mn-Zn, W. Michael Yim

Bachelors Theses and Reports, 1928 - 1970

The purpose of this investigation is to determine whether ferromagnetic alloys exist in the ternary sys­tem Cu-Mn-Zn analogous to the other Heusler alloys. The work in this thesis is a preliminary investi­gation on these alloys using a common metallographic re­search technique and augmented with X-ray methods.


A Determination Of Reflectivity Of Opaque Ore Minerals With A Weston Ii Light Meter, Louis L. Bergan May 1951

A Determination Of Reflectivity Of Opaque Ore Minerals With A Weston Ii Light Meter, Louis L. Bergan

Bachelors Theses and Reports, 1928 - 1970

Measurements of reflectivity of opaque ore minerals can be made with the common photographic light meter and a standard reflecting microscope, both of which are available to most Geology laboratories. During the course of the investigation, approximately 30 minerals were examined, of which 10 were duplicates. Comparable results, for the most part within 3% of previously determined valued, were obtained.


Electro-Galvanizing From A Purified Ammonium Sulphate Leach Of Anaconda Zinc Calcine, Phillip J. Mischkot Jr. May 1951

Electro-Galvanizing From A Purified Ammonium Sulphate Leach Of Anaconda Zinc Calcine, Phillip J. Mischkot Jr.

Bachelors Theses and Reports, 1928 - 1970

Ever since the introduction of metal products into our civilization, especially those of iron and steel, man has been confronted with the problems of corrosion prevention. As the agents which are conducive to cor­rosion cannot be completely eliminated, it has been necessary for man to develop processes and materials that will retard the degeneration of the metals that are so important to our industrialized world.


Resistance Of Solid Inconel To Attack By Liquid Indium, David C. Hendra May 1951

Resistance Of Solid Inconel To Attack By Liquid Indium, David C. Hendra

Bachelors Theses and Reports, 1928 - 1970

The role of liquid metals in industry is rap­idly becoming of increasing importance. The phys­ical and chemical tendencies of metals in the liq­uid condition must be ascertained before a metal in this form can be put to practical usage. In very many stages of mineral processing and recovery, in molten-metal baths for temperature control on heat treating, and in several industries where heat transfer is an important aspect, metals may be at one time or another in a liquid condition.


Production Of Sponge Iron From Pyrites, Robert W. Leeson May 1951

Production Of Sponge Iron From Pyrites, Robert W. Leeson

Bachelors Theses and Reports, 1928 - 1970

The purpose of this thesis is to record and discuss the results of tests conducted, at the Montana School of Mines, in which pyrite concentrates from the Concentrator Department of the Anaconda Reduction Works, Anaconda, Montana, were subjected to the reducing effects of natural gas at elevated temperatures in an endeavor to produce iron in the metallic form.


A Microscopic Study Of The Ore Minerals From The Mines In The Northern Part Of The Zosell (Emery) Mining District, John P. Joyce May 1951

A Microscopic Study Of The Ore Minerals From The Mines In The Northern Part Of The Zosell (Emery) Mining District, John P. Joyce

Bachelors Theses and Reports, 1928 - 1970

Any investigation of the many gold silver producing districts of Montana will necessarily include the name Zosell. The Zosell Mining District, often referred to as the Emery District, was never a major producer in the state; however, its location, history, type of deposit, and char­acter of ore, has drawn the interest of many prominent investigators of the mineral industry.


Faunal Studies Of The Sappington Sandstone Of Southwestern Montana, Howard E. Banta May 1951

Faunal Studies Of The Sappington Sandstone Of Southwestern Montana, Howard E. Banta

Bachelors Theses and Reports, 1928 - 1970

The exact upper boundary of the Devonian of Mont­ana has long been a controversy, as is true of the Dev­onian-Mississippian contact in many other localities. In an effort to delimit the upper Devonian, various paleontologic studies have been made, more especially in the southwestern part of the state.


Geology Of A Postulated Volcanic Vent Northeast Of Whitehall, Montana, C. H. Hewitt, H. D. Olson May 1951

Geology Of A Postulated Volcanic Vent Northeast Of Whitehall, Montana, C. H. Hewitt, H. D. Olson

Bachelors Theses and Reports, 1928 - 1970

The possibility of defining the roots of one of the volcanic sources of the Upper Cretaceous Livingston formation led to the detailed mapping upon an enlarged aerial photograph of a complexly intruded, folded, and faulted area about 10 miles northeast of Whitehall, Montana.


A Listing Of Montana Invertebrate Fossils And A Bibliography Of Montana Paleontology, Robert G. Ingersoll May 1951

A Listing Of Montana Invertebrate Fossils And A Bibliography Of Montana Paleontology, Robert G. Ingersoll

Bachelors Theses and Reports, 1928 - 1970

The oldest system in which identifiable invertebrate fossils have been found is the Cambrian. The basal Cambrian formation found in Montana is the Flathead sandstone and quartzite of Middle Cambrian age. No fossils have been reported from this formation. Above the Flathead is the Wolsey formation composed of green fissile shale with sandy and limy members. This fossiliferous member of the Middle Cambrian is known in Northwestern Montana as Gordon, and in the Philipsburg quadrangle as the Silver Hill formation.


Mineralogy Of The Silver King Mine Of Park City, Utah, Pierce D. Parker May 1951

Mineralogy Of The Silver King Mine Of Park City, Utah, Pierce D. Parker

Bachelors Theses and Reports, 1928 - 1970

Except for the early work of Boutwell and Irving, little has been published on the geology of the Park City mining district. For this reason and because of the availability of a selected suite of ores from the Silver King mine of this area, this writer chose the mineralogy of the Silver King mine as a senior thesis for the de­partment of Geology of the Montana School of Mines.


The Construction Of A Ferromagnetic Torsion Balance, Elliott Willner May 1951

The Construction Of A Ferromagnetic Torsion Balance, Elliott Willner

Bachelors Theses and Reports, 1928 - 1970

The construction of the apparatus was performed entirely in the machine shops at the Montana School of Mines. The materials utilized in the construction were obtained through the courtesy of many sources: the A. C. M. Co., the Montana Power Co., and the Western Iron Works.


Unit Consumptive Use Of Water Studies In The Ashley And Ferron Valleys Of Utah For The 1950 Growing Season, James O. Henrie May 1951

Unit Consumptive Use Of Water Studies In The Ashley And Ferron Valleys Of Utah For The 1950 Growing Season, James O. Henrie

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

For the past 2 years a project has been carried on by the Utah Agricultural Experiment Station and the United States Department of Agriculture, Soil Conservation Service, in cooperation with the Utah State Engineer, in the Ashley and Ferron valleys of Utah to determine the consumptive use of water in these areas. This report is the preliminary part of the third year of study. It includes a determination of unit consumptive use values for the major agricultural crops. These values will later be used by the Soil Conservation Service and Experiment Station in determining the valley consumptive use by the …


Experience Of An Engineer In Road And Street Work, Wallace W. Sanders Apr 1951

Experience Of An Engineer In Road And Street Work, Wallace W. Sanders

Kentucky's Annual Forum on Transportation

No abstract provided.


Night, Sight, And Light, James H. Havens, Allie C. Peed Jr. Apr 1951

Night, Sight, And Light, James H. Havens, Allie C. Peed Jr.

Kentucky's Annual Forum on Transportation

No abstract provided.


Viginia's Experience With 39,000 Miles Of Secondary Roads, L. E. Akers Apr 1951

Viginia's Experience With 39,000 Miles Of Secondary Roads, L. E. Akers

Kentucky's Annual Forum on Transportation

No abstract provided.


Corrugated Metal Sections — Tests And Proposed Specifications, James E. Black Jr. Apr 1951

Corrugated Metal Sections — Tests And Proposed Specifications, James E. Black Jr.

Kentucky's Annual Forum on Transportation

No abstract provided.


Construction Of Water Bound Base With Class I Binder And Surface, L. H. Mcwilliams Apr 1951

Construction Of Water Bound Base With Class I Binder And Surface, L. H. Mcwilliams

Kentucky's Annual Forum on Transportation

No abstract provided.


Field Problems On Construction Of Grade And Drain, D. C. Woodward Apr 1951

Field Problems On Construction Of Grade And Drain, D. C. Woodward

Kentucky's Annual Forum on Transportation

No abstract provided.


Field Problems In Construction Practices, Nathan Davies Apr 1951

Field Problems In Construction Practices, Nathan Davies

Kentucky's Annual Forum on Transportation

No abstract provided.


Subgrade Bearing Tests Used In Kentucky's Flexible Pavement Design, W. B. Drake Apr 1951

Subgrade Bearing Tests Used In Kentucky's Flexible Pavement Design, W. B. Drake

Kentucky's Annual Forum on Transportation

No abstract provided.


The Use Of Aerial Photographs In The Design And Location Of Highways, D. K. Blythe Apr 1951

The Use Of Aerial Photographs In The Design And Location Of Highways, D. K. Blythe

Kentucky's Annual Forum on Transportation

No abstract provided.


Panel Discussion On Maintenance, M. F. Johnson, W. F. Knarr, C. O. Yochum, J. E. Adams, Dewey Sparks, F. H. Hillyard, W. R. Wray Apr 1951

Panel Discussion On Maintenance, M. F. Johnson, W. F. Knarr, C. O. Yochum, J. E. Adams, Dewey Sparks, F. H. Hillyard, W. R. Wray

Kentucky's Annual Forum on Transportation

No abstract provided.


Maintenance Equipment And Its Use, J. C. Moore Apr 1951

Maintenance Equipment And Its Use, J. C. Moore

Kentucky's Annual Forum on Transportation

No abstract provided.


Discussion [1951], A. O. Neiser Apr 1951

Discussion [1951], A. O. Neiser

Kentucky's Annual Forum on Transportation

No abstract provided.


Road Design To Reduce Maintenance Costs, M. F. Johnson Apr 1951

Road Design To Reduce Maintenance Costs, M. F. Johnson

Kentucky's Annual Forum on Transportation

No abstract provided.


County Road Problems, Carroll M. Redford Apr 1951

County Road Problems, Carroll M. Redford

Kentucky's Annual Forum on Transportation

No abstract provided.


Street And City Maintenance Problems, Jack Maynard Apr 1951

Street And City Maintenance Problems, Jack Maynard

Kentucky's Annual Forum on Transportation

No abstract provided.


Address [1951], W. P. Curlin Apr 1951

Address [1951], W. P. Curlin

Kentucky's Annual Forum on Transportation

No abstract provided.


Foreword [1951], R. E. Shaver Apr 1951

Foreword [1951], R. E. Shaver

Kentucky's Annual Forum on Transportation

No abstract provided.