Digital Commons Network^™

Some Emission Phenomena Observed On Commercial Photocells, Zaboj V. Harvalik

Journal of the Minnesota Academy of Science

No abstract provided.

Electroplating Of Chromium Upon A Nickel Plated Magnesium Alloy, Harmel Dawson

Bachelors Theses and Reports, 1928 - 1970

A nickel plating operation for magnesium alloys was investigated and proved successful in plating a small sample of a typical commercial magnesium alloy, Dowmetal J1.

A Theorem On The Unit Groups Of Simple Algebras, Ralph Hull

Department of Mathematics: Faculty Publications

Let k be an algebraic number field of finite degree m and let A be a normal simple algebra of degree n, order n², over k. Our object is to prove the following theorem.
THEOREM. If A is an R-algebra, that is, if n>2 or at least one infinite prime place of k is unramified in A when n=2, then any two distinct maximal orders of A have distinct groups of units.

A Spectrophotometric Study Of The Solution Of Iodine In Aqueous Potassium Iodide, Joseph L. Schneider

Master's Theses

No abstract provided.

The Determination Of Small Amounts Of Carbon Monoxide In Air, Edward J. Fitzsimons

Master's Theses

No abstract provided.

Censusing Pheasants By Detonations, H. Elliot Mcclure

Nebraska Game and Parks Commission: Staff Research Publications

A study of the ecology and management of the ring-necked pheasant (Phasianus c. torquatus) was begun in Nebraska in the spring of 1941. Prime among the objectives of the survey was to devise some method by which the populations could be estimated or counted. In conjunction with roadside counts as practiced in Minnesota, Iowa, Ohio, Pennsylvania and other states, attempts were made to derive a closer estimate than by that method. Every game technician working with roadside counts of pheasants realizes the difficulties involved. Having had success in estimating the numbers of mourning doves by counting their calls …

Aircraft Electronic Instrumentation, A. P. Upton

Journal of the Minnesota Academy of Science

No abstract provided.

Abstract Papers

Journal of the Minnesota Academy of Science

No abstract provided.

Ground Water In The Republican River Basin- Part Ii: Furnas County, H.A. Waite, E.C. Reed, D.S. Jones Jr.

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Volume Tables For Connecticut Hardwoods, Walter H. Meyer, Raymond Kienholz

Yale School of the Environment Bulletin Series

No abstract provided.

An Improved Method For The Determination Of Vitamin B₁ And Vitamin B₂ By Spectrophotometric Means., Kenneth W. Smith

Electronic Theses and Dissertations

No abstract provided.

On Certain Arithmetical Functions Due To G. Humbert, M. A. Basoco

Department of Mathematics: Faculty Publications

G. Humbert has discussed, in a series of brief notes, a certain class of entire functions with interesting arithmetical properties. These functions are defined, in an essentially unique manner, by certain functional equations. The Fourier series representations of the solutions of these equations are similar in form to those for the elliptic functions snu, cnu, dnu, and so on. They differ from these, however, in that their domain of validity extends throughout the entire complex plane (Z_∞ excluded) and moreover, in that their arithmetized forms involve incomplete numerical functions of the divisors of an integer.
In the …

Ground Water In The Republican River Basin In Nebraska- Part 1: Nuckolls, Webster, Franklin And Harlan Counties, H.A. Waite, E.C. Reed, D.S. Jones Jr.

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Geology Of Webster Parish., James Littell Martin

LSU Historical Dissertations and Theses

No abstract provided.

A Study Of Deep-Seated Domes Of South Louisiana., William Edwin Wallace

LSU Historical Dissertations and Theses

No abstract provided.

The Decomposition Of Isopropyl Chlorocarbonate., Edgar Lattimore Compere

LSU Historical Dissertations and Theses

No abstract provided.

Spectrophotometric Determinations Of The Sulfonamides, Paul William Brna

Master's Theses

No abstract provided.

Protein Content Of Grasses At Different Stages Of Growth, G.F. Gastler, A.L. Moxon

Agricultural Experiment Station Chemistry Pamphlets (1943-1944)

The two attached tables indicate the changes in protein content of Western Wheat grass and Blue Green grass at different stages of growth. The values are based on an air dry basis which would be comparable with the moisture content of dry hay. The values, therefore, indicate the approximate protein content of hay made from these grasses if cut at the stages indicated in the tables.

Laboratory Tests On Gravelly Material For Use In The Pervious Zones Of Newton Dam, Newton Project, Utah, W.G. Holtz

Elusive Documents

A compaction test was performed on the soil (-1/2") material, and mechanical analysis, specific gravity, and percolation-consolidation test was made in a large (19&1/2" diameter) percolator, cylinder and the material was well compacted into the cylinder. A consolidating load equivalent to a 20-foot fill was applied. Because it was believed that some of the fine sand might be transported through the gravel and rock by the percolating water, a 14-mesh screen and a 2-inch later of clear fine gravel (3/16" - 3/8") was placed over the gravelly material being tested. After the percolation-consolidation test was completed, the screen and fine …

Effect Of Temperature On Sludge Digestion And Gas Production At The Racine Sewage Disposal Plant, Mitzi S. Heim

Bachelors’ Theses

Sewage is defined as the "spent water supply of a com­munity, together with those human and household wastes which are removed by water carriage supplemented in some instances by street washings and industrial wastes."

Wind Appendix (1943), Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

Press Reports (1943), Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

Odor Report (1943), Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

A Study Of Chrome Dyeing By Determination Of Chromium On Dyed Wool And In Exhausted Dye Baths, Thomas Schonfeld

Chemistry Honors Papers

This 13 page thesis attempts to analyze the reaction between the wool and the chromate in the dye bath.

A Study Of The Fischer-Tropsch Synthesis, John E. Dornfeld

Bachelors’ Theses

In Continental Europe, where raw materials are at a premium, it is necessary to synthesize as much as possible. Hydrocarbons and their oxygenated derivatives are important for "everyday" life. When importation costs of raw materials are high, synthesis is necessary provided it can be done cheaper. The Fischer-Tropsch process is the answer for the needs of synthetic hydrocarbons and their oxygenated derivatives.

The purpose of this thesis is to obtain hydrocarbons and their oxygenated derivatives by the Fischer-Tropsch process in the wax range. From the literature it appears that no work in the industrial field is being done in the …

Nitrate Production As Affected By Grain-Crop Residues On The Surface Of The Soil, T. M. Mccalla, J. C. Russel

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The purpose of this bulletin is to present the data on nitrate contents and nitrate production in tests where straw or stalk residues were left on the surface through subsurface tillage, as compared with check treatments where these residues were plowed under or were absent. Nine of these tests were at Lincoln, Nebraska, and one was at the Hastings, Nebraska, Hydrological Project. Two tests were conducted in 1939, four in 1941, and four in 1942.

X-Ray Inspection Of Castings (Army Air Forces' Requirements), Robert Katz

Robert Katz Publications

The author contributed a brief account of the radiographic practices necessary to comply with government specifications to a round table discussion on inspection methods at the last American Society for Metals Convention, and later was able to release for publication in Metal Progress a full set of the radiographic standards set up about a year ago to govern acceptance of structural castings for airplanes. Representaive negatives are reproduced in this article. Those eliminated are either of similar defects which did not register strong enough to appear on an engraving without retouching, or of defects readily observed by visual inspection without …

Flotation Of A Complex Sulphide Ore Containing Tetrahedrite, James C. O'Dea, Lorimer W. Hoar

Bachelors Theses and Reports, 1928 - 1970

The ore investigated in this thesis is a zinc-copper-lead ore. Microscopic analysis of this complex sulphide ore showed it to contain pyrite_, sphalerite, arsenopyrite, galena, chalcopyrite, tetrahedrite, and covellite, with quartz as the gangue constituent.

The Electrodeposition Of Chromium From Trivalent Salt Solutions, Bahri Ersoz

Bachelors Theses and Reports, 1928 - 1970

The enormous number of previous experiments and researches for the improvement of the commercial chromic acid bath, did not succeed even in the partial elimination of any one of the disadvantages of chromic acid bath. This led the author to believe that the poor performance is an inherent quality of the chromic acid bath, and is due to the fact that the deposition occurs from the higher state of oxidation.

Bright Electroplating Of Copper In The Acid Bath, Elwood K. Jensen

Bachelors Theses and Reports, 1928 - 1970

Plating of various objects with mirror-like surfaces of chromium, nickel, and other metals has expanded considerably during the past decade, and now ranks as an important enterprise, particularly with respect to the automotive industry.