Physical Sciences and Mathematics Commons^™

Abstract Papers

Journal of the Minnesota Academy of Science

No abstract provided.

Abstract Papers

Journal of the Minnesota Academy of Science

No abstract provided.

Maine Geological Survey - Bulletin 3 : Petrology Of The Columbia Falls Quadrangle, Me., Ruth D. Terzaghi

Maine Collection

Maine Geological Survey - Bulletin 3 : Petrology of the Columbia Falls Quadrangle, Me.

Joseph M. Trefethen, State Geologist

by Ruth D. Terzaghi

Maine Development Commission, Augusta, Maine, March 1, 1946.

The Determination Of Interfacial Tension Using Pendant Drop Method, Katherine Tellor

Bachelors’ Theses

Boundary tension is a measure of the free energy of a fluid interface. It is a term derived from the superficial analogy between the surface of a liquid and a stretched membrane. Just as the potential energy of a fluid mass in foot pound per pound is spoken of as a "head" in feet, so it is useful to speak of free energy of a fluid surface in ergs per square centimeter as a "tension" in dynes per centimeter.

The Electrodeposition Of Waxes From Emulsions, Richard Nebel

Bachelors’ Theses

At the beginning of the nineteenth century, electrochemistry became an established part of the science of chemistry. Volta believed in the existence of some definite relationship between chemical and electrical phenomena and his investigations led to the discovery of a means of converting chemical energy to electrical energy. His observations became the foundation upon which all modern electrochemistry is based. Volta alternated zinc and silver disks with paper soaked in salt water between each disk. This afforded a source of electrical energy which produced a current and became to be known as the Voltaic-pile.

Industrial Nebraska In Outline, G. E. Condra

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

The Effect Of Weak Acid On The Stability Of Burnishing Ink, Marcella Wamser

Bachelors’ Theses

By definition we find "An emulsion being a system containing two liquid phases, one of which is dispersed as globules in the other. That liquid which is broken up into globules is termed the dispersed phase, whilst the liquid surrounding the globules is known as the continuous phase or dispersing medium". If a small portion of benzene is poured into a large volume of water, it can be emulsified by simply shaking or agitating. Again, chloroform and water with shaking gives an emulsion.

Cloudburst Floods In Utah 1850-1938, Ralf R. Woolley

Elusive Documents

No abstract provided.

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 …

A Study Of Form And Content For A Laboratory Manual To Be Used By Students In General Chemistry Laboratory, Berne P. Broadbent

Theses and Dissertations

This investigation was carried out for general chemistry classes in which recitation and laboratory work are closely integrated and in which very close supervision is given to laboratory classes. Results indicate that there are fewer failures under these conditions if students do individual work. Students receiving grades of over 80% seem to work just as effectively in pairs as they do when working individually, but about 5% who fail when working in pairs could, apparently obtain grades above 60% if they did individual work. The formal full statement type of report is substantially more effective than the questionaire report as …

Thermochemical Studies Of Special Propellants., Frederick C. Damm

Electronic Theses and Dissertations

No abstract provided.

The Monadnock Volume 20, Number 1, December 1945, Clark University Geographical Society

The Monadnock (Clark Geographical Society)

Volume 20, Issue 1 of The Monadnock. The Monadnock was the alumni magazine of the Clark University Geographical Society (1927-1985) (2014-present).

Press Reports (1945), Walter Lawrance

Walter Lawrance Papers

No abstract provided.

Van Slyke Determination Of Amino Acids In Beer And Malt, Rebecca Spilberg

Bachelors’ Theses

A change has been taking place in the brewing industry during the last few years. There has been a tendency to give up traditional methods of brewing for methods based on sound scientific principles. In line with this, the work of the chemical research laboratory has grown from almost nothing Until it now plays a role of vital importance to the industry.

The Determination Of Of Bromo Acid, Genevieve M. Stein

Bachelors’ Theses

The use of bromo acids in lipstick is comparatively recent. Since its use is so necessary to the modern lipstick in order to impart indelibility and staining power, the fact that bromo acid arouses a toxicity in the presence of castor oil in some individuals does not keep it from being one of the most important constituents of the stick. However, in order to keep the toxicity down to a minimum it is necessary to keep the type end amount of bromo acid under control. It is, therefore, highly important that a check on the amount of bromo acid be …

A Study Of The Reactions Of Anhydrous Hydrogen Fluoride On Organic Compounds, Daale Jones

Bachelors’ Theses

There are many uses for anhydrous hydrogen fluoride in the field of organic synthesis. The addition of hydrogen fluoride to a double bond is readily carried out at room temperature and provides a good starting point for mastering the special technique. It is widely used as one of our best · polymerizing agents. It has many uses as a catalyst in alkylation, acylation, Fries change and ring closure reactions. Due to its extreme reactivity a complete understanding of the material is necessary in order to handle it properly. The matter of technique in manipulation and carrying out reactions was one …

Odor Report (1945), Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

The Nitric Acid Oxidation Of 12-Hydroxystearic Acid, Henry K. Suzuki

Bachelors’ Theses

Although much work has been done on the oxidation of saturated fatty acids in the past, relatively little research on hydroxylated acids has been conducted.

This paper is a study of the oxidation of mono and poly hydroxy-fatty acids and was undertaken on the basis of Reid and Hall's report on the nitric acid oxidation of 12-hydroxystearic acid.

Report On Refrigeration And Cold Storage Plants In Germany, R. L. Perry

United States Department of Commerce: Staff Publications

Korting Maschinen U Apparatenbau, Hannover/Linden: Interview with Herr Peter Fusch, owner.

Gesellschaft fur Markt un Kuhlhallen, Hamburg, & Eiswerke Hammonia, Hamburg: Interview with Herr Proebst, director.

Kuhltransit A.G., Hamburg: Interview with Hans Seler, Director, & Paul Prestzschendorfer, clerk.

Forschunggemeinschaft fur Kuhllagerung von Obst und Gemuse, Magdeburg: Interview with Emmi Boeck.

Tertiary Coniferous Woods Of Western North America, George F. Beck

All Faculty Scholarship for the College of the Sciences

Almost four decades have elapsed since Platen (1908), the German paleobotanist, published his report upon the fossil woods of the western United States. Since then no over-all treatment of these materials has been attempted. although Platen overlooked the Pacific Northwest with its abundance of Tertiary petrified woods. The purpose of this paper is to bring knowledge of the western coniferous woods of the Tertiary up to date. In this effort the writer recognizes that much of this information has been accumulated incidentally in the study of the Russell Petrified Forest series of central Washington, and that it is not as …

Ground Water In The Republican River Basin In Nebraska-Part Iv: Hitchcock, Hayes, Dundy And Chase Counties, H.A. Waite, E.C. Reed, D.S. Jones Jr.

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

The Preparation Of Several N-Substituted Anthranilic Acids And A Determination Of Their Infrared Spectra In The Region From 2 To 9 Microns, Robert H. Chess

Tennessee State University Alumni Theses and Dissertations

No abstract provided.

Interrogation Of Albert Speer And Members Of The Former Reich Ministry Of Armaments And War Production, Fulton Brig. Gen., Mckenzie Lt.Col., Blunden Maj.

United States Department of Commerce: Staff Publications

Technical Report No. PB 430, includes:

REPORT NO, 12 of June 11, 1945. SUBJECT: General Policy on Production and on Research and Development.

Report No. 13 of 20 June 1945. SUBJECT: SPEER MINISTRY PERSONNEL.

REPORT No. 14 of 13 June 1945. SUBJECTS: A. Supply or Armaments to forces in the field. B. Production planning. C. Proportion between air frames and aero engines

REPORT NO. 16, based on the examination of SAUR, Chief of Technisches Amt, held at 1600 hours 23 June, 1945. SUBJECT: Information on Archives of the Technisches Amt

Physical And Chemical Properties Of Soil Profiles Of The Burchard And Steinauer Series, Henry W. Smith, H. F. Rhoades

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The purpose of this bulletin is to report an investigation of the soils mapped as types of the Burchard and Steinauer series. Burchard soils are described as nearly mature Prairie soils, and Steinauer soils as Lithosols, by the Division of Soil Survey. The C horizons of soils of both series consist of calcareous glacial drift. A part of the conclusions drawn from the investigation of these soils is based upon observations made in the field in southeastern Nebraska, the remainder upon laboratory data for samples taken by horizons from nine profiles.

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

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.

The Preparation Of 2-Fluoroarsanilic Acid And An Attempt To Prepare 4-Fluorophenylarsonic Acid, Robert E. Shupe

Bachelors’ Theses

In the preparation of a fluorinated organic arsenical compound the writer has entered upon what may be untrodden ground. The difficulties were numerous and the press of time has made impossible for the present many of the investigations and modifications of method which would otherwise have been carried out

The Preparation Of 2-Fluoroarsanilic Acid And An Attempt To Prepare 4-Fluorophenylarsonic Acid, Robert E. Shupe

Bachelors’ Theses

In the preparation of a fluorinated organic arsenical compound the writer has entered upon what may be untrodden ground. The difficulties were numerous and the press of time has made impossible for the present many of the investigations and modifications of method which would otherwise have been carried out.

Malonic Acid Synthesis, Mary K. Hormuth

Bachelors’ Theses

The search for new organic compounds, the discovery of their proper­ ties and the utilization of them, both in the industrial and the biological field has always been the challenge to the organic and research chemist. In particular, the study of fatty acids and their related compounds has been the particular problem to not only the physiological chemist, but also the industrial chemist. The research in this direction has tremen­dous possibilities tor only the even carbon and normal chain acids have been isolated in nature. Here difficulty is often met when trying to establish and identify this type of acid …

The Monadnock Volume 19, Number 2, May 1945, Clark University Geographical Society

The Monadnock (Clark Geographical Society)

Volume 19, Issue 2 of The Monadnock. The Monadnock was the alumni magazine of the Clark University Geographical Society (1927-1985) (2014-present).