Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Physical Sciences and Mathematics

Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 90871 - 90900 of 91366

Full-Text Articles in Entire DC Network

The Sine-Function, Audrey Siehr May 1934

The Sine-Function, Audrey Siehr

Bachelors’ Theses

Since the sine function is one of the most important elements of that phase of mathematics known as Trigonometry, it is only proper that we pause a moment for a short explanation of that subject. Trigonometry originated with the Greeks as the name itself implies. It was derived from the two Greek words trlgonon, meaning triangle; and metria, meaning measure. Trigonometry, then, dealt with problems related to measuring triangles.


A Model For Crystal Structure, Eugene E. Menge May 1934

A Model For Crystal Structure, Eugene E. Menge

Bachelors’ Theses

The problem of this thesis resolves itself into the following: To build a model to show the structure of crystals and to present- an explanation thereof.


The Solution Of The Quartic Equation In One Variable, Beatrice Dwyer May 1934

The Solution Of The Quartic Equation In One Variable, Beatrice Dwyer

Bachelors’ Theses

The purpose of this thesis has been to give a brief account of the history of the quartic equation, to develop and illustrate the particular solutions of the quartic and the more important solutions of equations in general.

Three types of solutions have been considered the particular algebraic solutions for biquadratic, the graphical solution, and methods of approximation A brief discussion has been given concerning the nature of the roots and the discriminant of the quartic.


Test 226: Caterpiller Model 22, Nebraska Tractor Test Lab Jan 1934

Test 226: Caterpiller Model 22, 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 221: Mccormick Deering Farmall F-20, Nebraska Tractor Test Lab Jan 1934

Test 221: Mccormick Deering Farmall F-20, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.


Test 222: John Deere A, Nebraska Tractor Test Lab Jan 1934

Test 222: 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 223: Allis-Chalmers Model Wc, Nebraska Tractor Test Lab Jan 1934

Test 223: Allis-Chalmers Model Wc, 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 228: Caterpiller Model 22, Nebraska Tractor Test Lab Jan 1934

Test 228: Caterpiller Model 22, 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 225: Caterpiller Model R-2, Nebraska Tractor Test Lab Jan 1934

Test 225: Caterpiller Model R-2, 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 231: Mccormick-Deering "W-12" (Gasoline), Nebraska Tractor Test Lab Jan 1934

Test 231: Mccormick-Deering "W-12" (Gasoline), 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 227: Caterpiller Model R3, Nebraska Tractor Test Lab Jan 1934

Test 227: Caterpiller Model R3, 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 224: Caterpiller Model R-5, Nebraska Tractor Test Lab Jan 1934

Test 224: Caterpiller Model R-5, 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 229: Mccormick-Deering "W-12" (Kerosene), Nebraska Tractor Test Lab Jan 1934

Test 229: Mccormick-Deering "W-12" (Kerosene), 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 230: Mccormick-Deering Tractractor "T-40" Diesel, Nebraska Tractor Test Lab Jan 1934

Test 230: Mccormick-Deering Tractractor "T-40" Diesel, 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 …


The Production Of Oxalic, Citric, And Gluconic Acids From Plantation Molasses, John A. Ruth Jan 1934

The Production Of Oxalic, Citric, And Gluconic Acids From Plantation Molasses, John A. Ruth

University of the Pacific Theses and Dissertations

This research was undertaken for the purpose of developing a process for producing citric and gluconic acids from plantation molasses.

There is an evident need for such a process. At the present time, these acids are being produced by processes in which refined sugar is the principal raw material. If molasses could be used in place of refined sugar, the cost of raw materials would be reduced by approximately ninety percent. In addition, a waste product would be utilized.

The scope of this problem is very broad. Its solution will involve the solving of many problems of widely varying natures. …


Mathematical Short Cuts And Checks, Leon Schram Jun 1933

Mathematical Short Cuts And Checks, Leon Schram

Bachelors’ Theses

A computer naturally should be the master of short cuts and methods for checking his work. The latter is perhaps of more importance than the former because one must be able to show his employer that he knows that his work is correct.


The Calcite Veins Of The Livingston Formation, John Moore Conrow May 1933

The Calcite Veins Of The Livingston Formation, John Moore Conrow

Bachelors Theses and Reports, 1928 - 1970

An interesting group of calcite veins occur near Livingston Montana in a zone about eight miles wide and forty miles long in the edge of the Plains region of Montana in front of the Main ranges. The zone extends from the Boulder River south of Big Timber, through Springdale and Hunters Hot Springs, to Potter's Basin just north of Wilsall in Park County. The group of veins is particularly interesting because they cut relatively flat lying strata, suggest a structural relation­ship to one another, and they are nearly pure calcite.

The present investigation was to determine the position of the …


A Study Of The Composition Of Zinc Complex Cyanide Solutions By The Conductometric Method, Robert James Woody May 1933

A Study Of The Composition Of Zinc Complex Cyanide Solutions By The Conductometric Method, Robert James Woody

Bachelors Theses and Reports, 1928 - 1970

As the method or analysis used up to the present time has failed to give quantitative results in determining the composition of zinc cyanide baths, conductometric methods were adopted in this study. Supplementary tests were also carried out in this investigation.


Egyptian Mathematics, Evelyn Williams Apr 1933

Egyptian Mathematics, Evelyn Williams

Theses & Honors Papers

No abstract provided.


Mathematical Instruments, Marguerite Massey Apr 1933

Mathematical Instruments, Marguerite Massey

Theses & Honors Papers

The selection of a subject for my honors work was determined not only by the desire to gain a broader knowledge of mathematics but also to make a study of something that would be of value in teaching in the state. From a variety of possible topics, the one, mathematical instruments seemed most interesting and appealing. This broad subject had to be narrowed down and made more specific. It was decided to limit it mainly to those instruments which might be used in the teaching of mathematics, these falling into two groups, those which can be made and those which …


Piezo-Electricity, Glen S. Sunderland Apr 1933

Piezo-Electricity, Glen S. Sunderland

Bachelors’ Theses

The term "piezo" was derived from the Greek word "piezein", meaning "to press".

Piezo-electricity relates to the peculiar electric effect of pres.sure on some. crystals. The particular crystals evincing this phenomenon are of the class of hemihedral or hemimorphous, possessing the asymmetric arrangement of either the atoms or molecules.


Drying Of Solids : I. Prussian Blue., Orville K. Schmied 1910-1984 Jan 1933

Drying Of Solids : I. Prussian Blue., Orville K. Schmied 1910-1984

Electronic Theses and Dissertations

No abstract provided.


Test 213: Caterpiller Model 70, Nebraska Tractor Test Lab Jan 1933

Test 213: Caterpiller Model 70, 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 …


On The Element Of Decomposition Of A Doubly Periodic Function Of The Second Kind, M. A. Basoco Jan 1933

On The Element Of Decomposition Of A Doubly Periodic Function Of The Second Kind, M. A. Basoco

Department of Mathematics: Faculty Publications

Hermite has shown that a meromorphic function which satisfies periodicity relations of the form (1) F (z + 2ω) = μF (z), F (z + 2ω’) = μ’F (z), where ω’/ω = a+ib, b>0, and μ, μ' are independent of z, maybe expressed in terms of the function v{z + X) (2) G(z) = σ(z + λ) ÷ σ(z) + σ(λ) eρz, and its derivatives, in which λ, ρ are suitably determined constants and σ(u) is the …


Test 214: Caterpiller "Diesel 50", Nebraska Tractor Test Lab Jan 1933

Test 214: Caterpiller "Diesel 50", 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 217: Caterpiller "Diesel 35", Nebraska Tractor Test Lab Jan 1933

Test 217: Caterpiller "Diesel 35", 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 220: Mccormick-Deering Farmall "F-12" (Kerosene), Nebraska Tractor Test Lab Jan 1933

Test 220: Mccormick-Deering Farmall "F-12" (Kerosene), 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 216: Allis-Chalmers Model M, Nebraska Tractor Test Lab Jan 1933

Test 216: Allis-Chalmers Model M, 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 …


The Oxidation Of Amino Alcohols., Loran S. O'Bannon 1910-1995 Jan 1933

The Oxidation Of Amino Alcohols., Loran S. O'Bannon 1910-1995

Electronic Theses and Dissertations

No abstract provided.


Steric Hindrance In The Ketonic Splitting Of Substituted Acetoacetic Ester, Claude Stanley Abshier Jan 1933

Steric Hindrance In The Ketonic Splitting Of Substituted Acetoacetic Ester, Claude Stanley Abshier

Masters Theses

"The phenomenon of steric hindrance has been observed and investigated in a variety of reactions, most of which have been with aromatic compounds. In this branch of study the speeds of reaction of ethyl acetoacetate, α-mono-methyl-ethyl-acetoacetate, α-mono-ethyl-ethyl-acetoacetate, α-mono-propyl-ethyl-acetoacetate in the presence of 0.05 and 0.10 normal hydrochloric acids have been investigated at temperatures between 60⁰C. and 90⁰C. An attempt has been made to explain the results obtained"--Introduction, page 1.