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Articles 294601 - 294630 of 296643
Full-Text Articles in Physical Sciences and Mathematics
Time Of Set And Ph In Silicic Acid Gels, E August Laurence
Time Of Set And Ph In Silicic Acid Gels, E August Laurence
Honors Theses
The purpose of this investigation was to determine the time of set and the hydrogen ion concentration of a silicic acid gel, basic in nature. A gel prepared from a mixture of 1.2511 normal sodium silicate solution and 1.0158 normal ammonium chloride was used for this purpose. The possibility of measuring the hydrogen ion concentration by the indicator method was used with considerable success by Prasad and Halliangadi (1). Previous work on this problem at Union by Marotta (2) pointed out the uncertainty of the glass electrode method due to the effect of the silicate on the electrode. The possibility …
Study And Correlation Of Belt And Cambrian Arkoses Near Limespur, Montana, Ryan C. Mcnamee
Study And Correlation Of Belt And Cambrian Arkoses Near Limespur, Montana, Ryan C. Mcnamee
Bachelors Theses and Reports, 1928 - 1970
In the vicinity of Limespur, Montana, a siding along the Northern Pacific Railroad near Whitehall, Montana, occurs a characteristic type of arkose where in many small red mineral grains are distributed throughout the rock mass. It is in this respect that this arkose differs from other arkoses in the surrounding region.
Solution To Theory Of Equations For Teachers And Graduate Students, Arthur Lawrence Birkholz
Solution To Theory Of Equations For Teachers And Graduate Students, Arthur Lawrence Birkholz
Bachelors’ Theses
This thesis is intended primarily for teachers and graduate students who often find it necessary to review all or part of the basic theorems in the study of equations. Dickson's excellent book on the subject, "First Course in the Theory of Equations", is a recognized authority, so to facilitate a study of this book the writer has worked the problems suggested by Dickson, because these problems, more than any explanation could, illustrate and simplify the theorems on equations.
The user of this work-must bear in mind that there may be several ways of working many of the problems, and hence …
The Efficiency Of Approximation Formulae For Determining The Rate Of Interest In Amortization Schedules, Wade Ellis
The Efficiency Of Approximation Formulae For Determining The Rate Of Interest In Amortization Schedules, Wade Ellis
Mathematics & Statistics ETDs
The problem of this study is to determine the relative efficiency of the more important formulae for approximating the rate of interest involved in an amortization plan when the amount of the debt, the amount of the periodic payment, and the number of periods are known. By efficiency this meant the degree of accuracy obtainable, and the time required for solution.
Alkali Leaching Of Antimony Sulphide And Electrolytic Recovery Of Antimony From The Resulting Leach Solution, Vincent J. Andrews
Alkali Leaching Of Antimony Sulphide And Electrolytic Recovery Of Antimony From The Resulting Leach Solution, Vincent J. Andrews
Bachelors Theses and Reports, 1928 - 1970
It is the purpose of this investigation to obtain some insight into optimum conditions for leaching Stibnite with sodium hydroxide solution and also to steady the factors affecting the electrolysis of the resulting solution.
Age Hardening Of Silver-Platinum Alloys, Robert A. Wilson
Age Hardening Of Silver-Platinum Alloys, Robert A. Wilson
Bachelors Theses and Reports, 1928 - 1970
The alloy system selected for study was the binary alloy of platinum and silver. An examination of the various silver alloy diagrams revealed that of several possible alloys, the silver platinum was the most suitable with regard to solubility.
Electrolytic Recovery Of Copper And Zinc From Brass., V. Kent Loughran
Electrolytic Recovery Of Copper And Zinc From Brass., V. Kent Loughran
Bachelors Theses and Reports, 1928 - 1970
The reclamation of metals from scrap is becoming increasingly important in the metallurgical industry. Copper, because it does not corrode readily and is electronegative to most common metals, is peculiarly adapted to reclamation.
Magnesium - Tellurium By Powder Methods, George Gale
Magnesium - Tellurium By Powder Methods, George Gale
Bachelors Theses and Reports, 1928 - 1970
Today considerable work is being done in the compressed metal powder field which is gradually obtaining prominence as a valuable branch of metallurgy. The mass of data, however, has led to many different ideas on the results of sintering.
A Proposed Method For Classifying And Evaluating Soils On The Basis Of Productivity And Use Suitabilities, Arthur Anderson, A. P. Nelson, F. A. Hayes, I. D. Wood
A Proposed Method For Classifying And Evaluating Soils On The Basis Of Productivity And Use Suitabilities, Arthur Anderson, A. P. Nelson, F. A. Hayes, I. D. Wood
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
It is the object of this paper to present a method for classifying and evaluating the soils as mapped in regular soil surveys on the basis of land types, which are here defined as areas having reasonably similar productivity and use suitabilities. The standards used to differentiate land types will vary according to the desired objectives, but any material difference in yield, or in practices necessary to maintain a desirable level of productivity will justify recognition of land types. The proposed procedure involves a more detailed study of the influence which soils, slope, erosion, and drainage have on specific crops …
Geology And Ore Deposits Of The Golden Messenger Mine, Lewis And Clark County, Helena, Montana., John C. Archibald Jr.
Geology And Ore Deposits Of The Golden Messenger Mine, Lewis And Clark County, Helena, Montana., John C. Archibald Jr.
Bachelors Theses and Reports, 1928 - 1970
The Golden Messenger Mine which is approximately twenty-three miles northeast of Helena, Montana, near York, on Trout Creek, has long presented several problems of both theoretical and practical interest.
A Rapid Determination Of Small Amounts Of Lead In Zinc, George T. Hanson
A Rapid Determination Of Small Amounts Of Lead In Zinc, George T. Hanson
Bachelors Theses and Reports, 1928 - 1970
This investigation, carried on in the metallurgical laboratories at the Montana School of Mines, was undertaken with the desire to work out a rapid method for the estimation, or the determination, of the amount of lead in zinc.
The Geology And Ore Deposits Of Jardine, Montana, Wolter Duykers
The Geology And Ore Deposits Of Jardine, Montana, Wolter Duykers
Bachelors Theses and Reports, 1928 - 1970
The subject to be covered by this paper is based upon field study made during a six week stay at Jardine. The work began on June 19, 1937 and ended on July 31 of the same year.
The Electrodeposition Of Manganese From Certain Aqueous Solutions., William C. Wallace
The Electrodeposition Of Manganese From Certain Aqueous Solutions., William C. Wallace
Bachelors Theses and Reports, 1928 - 1970
Manganese has been successfully electrodeposited from aqueous solutions in past years by several workers in electrochemical and electrometallurgical fields.
The present work was concerned, primarily, with investigation of electrodeposition from solutions which are commercially obtainable from the hydrometallurgical or pyrometallurgical treatment of the low grade manganese deposits of this country.
A Study Of The Organic Dye Nitrazine As An Indicator For Acid-Base Titration, Grace Nachod
A Study Of The Organic Dye Nitrazine As An Indicator For Acid-Base Titration, Grace Nachod
Chemistry Honors Papers
This 13 page thesis examines the organic compound nitrazine as an indicator in acid - base nitrations.
The Search For Natural History Areas In Minnesota, A. N. Wilcox, W. J. Breckenridge, R. L. Donovan, T. B. Magath, H. E. Stork, Gustav Swanson
The Search For Natural History Areas In Minnesota, A. N. Wilcox, W. J. Breckenridge, R. L. Donovan, T. B. Magath, H. E. Stork, Gustav Swanson
Journal of the Minnesota Academy of Science
No abstract provided.
Settlement Forms In The Northwest Cumberland Plateau Of Kentucky, Leonard S. Wilson
Settlement Forms In The Northwest Cumberland Plateau Of Kentucky, Leonard S. Wilson
Journal of the Minnesota Academy of Science
No abstract provided.
Infiltration And Capillary Rise In Sandy Soils, Wallace M. Johnson
Infiltration And Capillary Rise In Sandy Soils, Wallace M. Johnson
Journal of the Minnesota Academy of Science
No abstract provided.
List Of Twenty-Two Species Of Monogenetic Trematodes From The South Pacific, F. G. Meserve
List Of Twenty-Two Species Of Monogenetic Trematodes From The South Pacific, F. G. Meserve
Journal of the Minnesota Academy of Science
No abstract provided.
Characteristics Of Some Forest Soils Developed On The Young Red (Patrician) Drift, C. O. Rost, Olaf C. Soine
Characteristics Of Some Forest Soils Developed On The Young Red (Patrician) Drift, C. O. Rost, Olaf C. Soine
Journal of the Minnesota Academy of Science
No abstract provided.
Pyro-Sulfate Ion In Solution, Geo. Glockler, R. I. Meland
Pyro-Sulfate Ion In Solution, Geo. Glockler, R. I. Meland
Journal of the Minnesota Academy of Science
No abstract provided.
Coloration Of Alkali Silicates By Carbon Arc And Sunlight, Geo. Glockler, A. R. Johansson
Coloration Of Alkali Silicates By Carbon Arc And Sunlight, Geo. Glockler, A. R. Johansson
Journal of the Minnesota Academy of Science
No abstract provided.
Application Of Reflection Seismic Prospecting To Outlining Of Oil-Bearing Geological Structures, George Welch, W. W. Wetzel
Application Of Reflection Seismic Prospecting To Outlining Of Oil-Bearing Geological Structures, George Welch, W. W. Wetzel
Journal of the Minnesota Academy of Science
No abstract provided.
A Preliminary Report On A Study Of College Science Courses Considered Valuable By High School Science Teachers, G. M. Wissink
A Preliminary Report On A Study Of College Science Courses Considered Valuable By High School Science Teachers, G. M. Wissink
Journal of the Minnesota Academy of Science
No abstract provided.
The Relation Of Statistics To The Design Of Educational And Psychological Investigations, Palmer O. Johnson
The Relation Of Statistics To The Design Of Educational And Psychological Investigations, Palmer O. Johnson
Journal of the Minnesota Academy of Science
No abstract provided.
The Butter Industry Of Nebraska, Walter Kollmorgen
The Butter Industry Of Nebraska, Walter Kollmorgen
Conservation and Survey Division
No abstract provided.
The Geology Of The Southern Central Portion Of The Morrison Cave Area., Arthur Talpt
The Geology Of The Southern Central Portion Of The Morrison Cave Area., Arthur Talpt
Bachelors Theses and Reports, 1928 - 1970
Morrison Cave is located about 50 miles southeast of Butte, Montana. It was named after the man who discovered it. Later it was taken over by the State and renamed Morrison Cave State Park. Recently the government with the aid of the Civilian Conservation Corps has built a new road to the cave and has made the interior more accessible. The name of the cave is now Lewis and Clark Cavern National Monument.
Ua37/23 Whas Broadcast No. 75, Whas, Western Kentucky University, Earl Moore
Ua37/23 Whas Broadcast No. 75, Whas, Western Kentucky University, Earl Moore
WKU Archives Records
Script for weekly WKU broadcast on WHAS radio. This show included Earl Moore, Ellen Jeffries, Judson Griffin, Mary Marks and Merle Lamon discussing conservation of natural resources.
A Mechanical Analysis Of The Oriskany Sandstone In Northwestern Virginia, Selma G. Hirsh
A Mechanical Analysis Of The Oriskany Sandstone In Northwestern Virginia, Selma G. Hirsh
Honors Papers
The primary purpose of this paper is to present specific data as a means of explaining the sedimentation conditions at the time of deposition of the Oriskany Sandstone. The data were obtained through the use of laboratory methods upon specimens taken from several outcrops in the vicinity of Monterey, Virginia (see Darton's U.S.G.S. folio No. 51). In addition to the presentation of objective results, the author has attempted to make tentative interpretations of them, based primarily upon textural and shape analysis of the sediment. The writer realizes that the investigation is inadequate in many respects, due to lack of time …