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Articles 39541 - 39570 of 40195

Full-Text Articles in Physical Sciences and Mathematics

The Anodic Polishing Of Copper In Solutions Of Orthophosphoric Acid, Robert E. Sullivan May 1947

The Anodic Polishing Of Copper In Solutions Of Orthophosphoric Acid, Robert E. Sullivan

Bachelors Theses and Reports, 1928 - 1970

The electrolytic cleaning of metals by anodic methods has been known for many years. It was recognized long ago that when the temperature and concentration of the electro­lyte were properly regulated, bright clean surfaces were obtained.


Geology Of A Kyanite Deposit Near Ennis, Montana, Clarence L. Nordstrom May 1947

Geology Of A Kyanite Deposit Near Ennis, Montana, Clarence L. Nordstrom

Bachelors Theses and Reports, 1928 - 1970

A deposit of kyanite, an aluminum silicate mineral used in the ceramic industry, occurs in the low foothills of the Gravelly range about 10 miles south of Ennis, Montana. This study deals primarily with the character and origin of the deposit, and its relationship to the surrounding rocks.


A Preliminary Investigation Of Chromite, Lester C. Brown May 1947

A Preliminary Investigation Of Chromite, Lester C. Brown

Bachelors Theses and Reports, 1928 - 1970

The purpose of this thesis was to study the effects of cryolite and a mixture of cryolite and aluminum oxide on a chromite concentrate with special reference to the ability to break the bond between the ferrous iron and chromic oxide in the chromite.


Distribution And Lithology Of Sedimentary Rocks In Montana And Adjacent Areas, Harold Kentta May 1947

Distribution And Lithology Of Sedimentary Rocks In Montana And Adjacent Areas, Harold Kentta

Bachelors Theses and Reports, 1928 - 1970

The general features of the sedimentary rocks in a region, their distribution, and the relationships of these rocks to other rocks of the area and of adjacent areas, are some of the things in which most geologists are interested, for reasons of general curiosity or for obtaining a better understanding of their specific prob­lems


Glaciation In Montana, Alvin H. Lense May 1947

Glaciation In Montana, Alvin H. Lense

Bachelors Theses and Reports, 1928 - 1970

Glacial deposits are increasingly entering into consideration in engineering projects, soil surveys, ground-water supply, sources for industrial materials, and other economic enterprises. In the field of en­gineering, glacial deposits if present must be consider­ed in connection with reservoir sites, dam or bridge abutments, road building, and other types of construction work.


Laboratory Model Shaking Table; An Investigation Of Defects And Suggested Improvements, George C. Horak Mar 1947

Laboratory Model Shaking Table; An Investigation Of Defects And Suggested Improvements, George C. Horak

Bachelors Theses and Reports, 1928 - 1970

The laboratory model is considered in this thesis. Information gained from this investigation has not been trans­ferred to the larger industrial machines. Some of the factors noted concerning the efficiency of the laboratory shaking table are inherent in this small scale model only.


Test 381: John Deere B All-Fuel, Nebraska Tractor Test Lab Jan 1947

Test 381: John Deere B All-Fuel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT: John Deere B All-Fuel

TEST A: The manufacturer's representative operates the tractor for a minimum of 12 hours using light to heavy drawbar loads in each gear.

This serves as a period for limber up, general observation and adjustments. Adjustments that are permissible include valve tappet clearance, breaker ,point gap, spark plug gaps, clutch and others of a similar nature. No new parts or accessories can be installed without having mention made of it in the report. No data' are recorded during this preliminary run except the time that the engine is operated.

BELT HORSEPOWER TESTS …


Test 384: John Deere A, Nebraska Tractor Test Lab Jan 1947

Test 384: John Deere A, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT: John Deere A

TEST A: The manufacturer's representative operates the tractor for a minimum of 12 hours using light to heavy drawbar loads in each gear.

This serves as a period for limber up, general observation and adjustments. Adjustments that are permissible include valve tappet clearance, breaker ,point gap, spark plug gaps, clutch and others of a similar nature. No new parts or accessories can be installed without having mention made of it in the report. No data' are recorded during this preliminary run except the time that the engine is operated.

BELT HORSEPOWER TESTS

TEST …


Test 383: John Deere G, Nebraska Tractor Test Lab Jan 1947

Test 383: John Deere G, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT: John Deere G

TEST A: The manufacturer's representative operates the tractor for a minimum of 12 hours using light to heavy drawbar loads in each gear.

This serves as a period for limber up, general observation and adjustments. Adjustments that are permissible include valve tappet clearance, breaker ,point gap, spark plug gaps, clutch and others of a similar nature. No new parts or accessories can be installed without having mention made of it in the report. No data' are recorded during this preliminary run except the time that the engine is operated.

BELT HORSEPOWER TESTS

TEST …


Test 387: John Deere M, Nebraska Tractor Test Lab Jan 1947

Test 387: John Deere M, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT: John Deere M

TEST A: The manufacturer's representative operates the tractor for a minimum of 12 hours using light to heavy drawbar loads in each gear.

This serves as a period for limber up, general observation and adjustments. Adjustments that are permissible include valve tappet clearance, breaker ,point gap, spark plug gaps, clutch and others of a similar nature. No new parts or accessories can be installed without having mention made of it in the report. No data' are recorded during this preliminary run except the time that the engine is operated.

BELT HORSEPOWER TESTS

TEST …


Test 388 Oliver Row-Crop 88 Hc, Nebraska Tractor Test Lab Jan 1947

Test 388 Oliver Row-Crop 88 Hc, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.


Test 380: John Deere B , Nebraska Tractor Test Lab Jan 1947

Test 380: John Deere B , Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT: John Deere B

TEST A: The manufacturer's representative operates the tractor for a minimum of 12 hours using light to heavy drawbar loads in each gear.

This serves as a period for limber up, general observation and adjustments. Adjustments that are permissible include valve tappet clearance, breaker ,point gap, spark plug gaps, clutch and others of a similar nature. No new parts or accessories can be installed without having mention made of it in the report. No data' are recorded during this preliminary run except the time that the engine is operated.

BELT HORSEPOWER TESTS

TEST …


Test 382: Cockshutt Model 30, Nebraska Tractor Test Lab Jan 1947

Test 382: Cockshutt Model 30, Nebraska Tractor Test Lab

Nebraska Tractor Tests

All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.

All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.

Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …


Test 385: Ford Model 8n, Nebraska Tractor Test Lab Jan 1947

Test 385: Ford Model 8n, Nebraska Tractor Test Lab

Nebraska Tractor Tests

All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.

All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.

Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …


Test 389: Massey-Harris Model 44-Rt, Nebraska Tractor Test Lab Jan 1947

Test 389: Massey-Harris Model 44-Rt, Nebraska Tractor Test Lab

Nebraska Tractor Tests

All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.

All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.

Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …


Insoluble Residues Of Five Sections Of The Amsden Formation, Wilmer R. Peterson Jan 1947

Insoluble Residues Of Five Sections Of The Amsden Formation, Wilmer R. Peterson

Bachelors Theses and Reports, 1928 - 1970

The term, "insoluble residue," as used in this report is that portion of the original rock sample remaining after the sample has been digested by a mixture of one part hydrocloric acid and two parts water. The remains or insoluble residue from this acid treatment may vary from nothing to I00 percent.


Test 386: Mccormick-Deering Farmall Cub, Nebraska Tractor Test Lab Jan 1947

Test 386: Mccormick-Deering Farmall Cub, Nebraska Tractor Test Lab

Nebraska Tractor Tests

All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.

All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.

Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …


Test 390: Ellinwood Tiger Cat, Nebraska Tractor Test Lab Jan 1947

Test 390: Ellinwood Tiger Cat, Nebraska Tractor Test Lab

Nebraska Tractor Tests

All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.

All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.

Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …


An Investigation Into The Adaption Of The Induction Furnace For Determining The Equilibrim Diagram Of The System Cu2s-Fes, John R. Cole May 1946

An Investigation Into The Adaption Of The Induction Furnace For Determining The Equilibrim Diagram Of The System Cu2s-Fes, John R. Cole

Bachelors Theses and Reports, 1928 - 1970

This investigation was started in an effort to find an accurate and efficient method of determining the freezing points of ferrous and cuprous sulphides, mixtures of the two substances, and from this to establish the liquidus line of the equilibrium dia­gram.


A Preliminary Investigation Of The Hydrometallurgy Of Philipsburg Manganese, W. L. Goodman May 1946

A Preliminary Investigation Of The Hydrometallurgy Of Philipsburg Manganese, W. L. Goodman

Bachelors Theses and Reports, 1928 - 1970

In the past the steel industry of the United States has depended almost wholly on imports for its supplies of manganese. Although it is well known that there are enormous deposits of low grade manganese ore in the United States the production of substantial amounts of ferro-grade mater­ial from domestic sources presents a field for con­structive and practical research.


Economic Talc Deposits Of Montana And Related Firing Problems, Charles J. Lyden May 1946

Economic Talc Deposits Of Montana And Related Firing Problems, Charles J. Lyden

Bachelors Theses and Reports, 1928 - 1970

This thesis has to do with a study of the produc­tion of talc in Montana, describing the local geology of each deposit, and a description of the laboratory tests that were made on various grades of Montana talc in an attempt to determine why some grades of talc can be burned in solid forms while others must be ground, mixed with a binder and molded.


Test 379: Bear Cat Model 3000-1, Nebraska Tractor Test Lab Jan 1946

Test 379: Bear Cat Model 3000-1, Nebraska Tractor Test Lab

Nebraska Tractor Tests

All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.

All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.

Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …


Permability And Porosity Of Devonian Dolomites In Northwestern Montana, Jack W. Nordquist Jun 1945

Permability And Porosity Of Devonian Dolomites In Northwestern Montana, Jack W. Nordquist

Bachelors Theses and Reports, 1928 - 1970

The purpose of this investigation is to record data per­taining to porosity and permeability derived from physical tests performed on Devonian dolomites occurring in northwestern Montana, and to subsequently summarize the results obtained as an aid in determining the possibility of those dolomites being suitable reservoir rocks for oil and gas accumulation.


Vermiculite, Occurence, Character, And Concentration Of Mineral From The Pony District, Madison County, Montana, A. Saterdal Jun 1945

Vermiculite, Occurence, Character, And Concentration Of Mineral From The Pony District, Madison County, Montana, A. Saterdal

Bachelors Theses and Reports, 1928 - 1970

The purpose of this paper is to investigate the occurrence and character of the vermiculite deposits approximately four miles northwest of Pony; Madison County, Montana. The deposits are situated in rolling foothills at the northern end of the Tobacco Root Mountains.


Advertising Brochure: Case S Series, Nebraska Tractor Test Lab Jan 1945

Advertising Brochure: Case S Series, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.


The Solubility Of Zinc Ethyl Xanthate In Water, Thomas M. Mckenzie Oct 1944

The Solubility Of Zinc Ethyl Xanthate In Water, Thomas M. Mckenzie

Bachelors Theses and Reports, 1928 - 1970

A determination of the solubility of zinc ethyl xanthate was attempted by measuring the refractive index of a saturated solution of that salt. The small increment in refractive index effected by adding zinc ethyl xanthate to water in saturation quantities rendered measurements difficult and of dubious accuracy.


Hydrogen Overvoltage Of Cadmium Bismuth And Antimony Bismuth Alloys, Edwin W. Stevens Oct 1944

Hydrogen Overvoltage Of Cadmium Bismuth And Antimony Bismuth Alloys, Edwin W. Stevens

Bachelors Theses and Reports, 1928 - 1970

A method to measure hydrogen overvoltage was devel­oped and checked with metals of known overvoltage. Alloys of bismuth and antimony and of bismuth and cad­mium were prepared and their overvoltages determined.


The Electrodeposition Of Copper-Cobalt Alloys, Richard L. Dunn Oct 1944

The Electrodeposition Of Copper-Cobalt Alloys, Richard L. Dunn

Bachelors Theses and Reports, 1928 - 1970

An attempt was made to deposit a 50:50 copper-cobalt alloy from various sulfate electrolytes. No true 50:50 alloy was obtained but various mixtures of cobalt and copper rich crystals were deposited.


Fluorite Near Silver Bow, Montana, Charles V. Campbell Feb 1944

Fluorite Near Silver Bow, Montana, Charles V. Campbell

Bachelors Theses and Reports, 1928 - 1970

The wartime demand for fluorspar has caused renewed interest in fluorite deposits. Near Silver Bow, Montana, a deposit of massive, coarsely crystalline fluorspar, which has not been described in the literature, has attracted the atten­tion of the United States Geological Survey.


The Incompatibility Of Certain Alcohol And Soap Frothers, John Thomas Doherty Feb 1944

The Incompatibility Of Certain Alcohol And Soap Frothers, John Thomas Doherty

Bachelors Theses and Reports, 1928 - 1970

The purpose of this thesis is to elucidate this phenomena of frother incompatibility, and to offer an explanation based upon several divergent lines of investigation. The research was limited to four common frothing agents, namely, pine oil, n-amyl alcohol, sodium oleate, and sodium lauryl sulphate (Dreft).