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 292951 - 292980 of 294725

Full-Text Articles in Entire DC Network

A Study Of The Acoustics Of Some Stockton Auditoriums And Rooms, Glen Halik Jan 1933

A Study Of The Acoustics Of Some Stockton Auditoriums And Rooms, Glen Halik

University of the Pacific Theses and Dissertations

Though the original purpose of this thesis was to investigate the cause for criticisms of the acoustical properties of the College Auditorium, it has been enlarged to a study of other Stockton Auditoriums and rooms with the idea of securing a technique of acoustical analysis similar to that of acoustical engineers in the industries. It was planned at first to set up an oscillator and reverberation meter, but it was found that the apparatus expense would be quite prohibitive. This research was therefore confined to noise meter measurements and reverberation calculations, and includes much of architectural and engineering branches. However, …


The Grenola Formation, G. E. Condra, C. E. Busby Jan 1933

The Grenola Formation, G. E. Condra, C. E. Busby

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Red Oak-Stennett-Lewis Traverse Of Iowa, G. E. Condra Jan 1933

The Red Oak-Stennett-Lewis Traverse Of Iowa, G. E. Condra

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Middle River Traverse Of Iowa, G. E. Condra, J. E. Upp Jan 1933

The Middle River Traverse Of Iowa, G. E. Condra, J. E. Upp

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Missouri Valley Traverse In Iowa North Of The Jones Point Deformation, G. E. Condra Jan 1933

The Missouri Valley Traverse In Iowa North Of The Jones Point Deformation, G. E. Condra

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Faunal Lists Of The Tertiary Vertebrata Of Nebraska And Adjacent Areas, H. J. Cook, M. C. Cook Jan 1933

Faunal Lists Of The Tertiary Vertebrata Of Nebraska And Adjacent Areas, H. J. Cook, M. C. Cook

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Resource News-May/June 1993 Jan 1933

Resource News-May/June 1993

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Resource News-November/December 1993 Jan 1933

Resource News-November/December 1993

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Nautiloid Cephalopods Of The Pennsylvanian System In Mid-Continent Region, A. K. Miller, Carl O. Dunbar, G. E. Condra Jan 1933

Nautiloid Cephalopods Of The Pennsylvanian System In Mid-Continent Region, A. K. Miller, Carl O. Dunbar, G. E. Condra

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


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.


The Monadnock Volume 7, Number 1, December 1932, Clark University Geographical Society Dec 1932

The Monadnock Volume 7, Number 1, December 1932, Clark University Geographical Society

The Monadnock (Clark Geographical Society)

Volume 7, Issue 1 of The Monadnock. The Monadnock was the alumni magazine of the Clark University Geographical Society (1927-1985) (2014-present).


Tungsten Plating, Allen J. Hipp Aug 1932

Tungsten Plating, Allen J. Hipp

Bachelors’ Theses

During the past twenty years electro-plating has undergone a thorough transformation from an art into a science in which physical chemistry is playing an important role. The factors which govern the plating of copper, nickel and brass are well known. Recently new processes have been found for the plating of cadmium and chromium. Metals which give a bright surface and which will take a polish are in great demand. Nickel and chromium answer these requirements, and are used commercially for a variety of uses. Chromium has been a remarkable success as a plated surface because it is both a beautiful, …


On The Trigonometric Developments Of Certain Doubly Periodic Functions Of The Second Kind, M. A. Basoco Aug 1932

On The Trigonometric Developments Of Certain Doubly Periodic Functions Of The Second Kind, M. A. Basoco

Department of Mathematics: Faculty Publications

The class of meromorphic functions which satisfy periodicity relations of the form (1) ƒ(z + 2ωl) = c1f(z), f(z + 2ω2) = c2f{z), where the multipliers c1 and c2 are independent of z, and ωl/ω2 is a complex number with non-vanishing imaginary part, has been named by Hermite doubly periodic of the second kind. It is possible to make the study of these functions depend on others of the same type, but such that one of the multipliers, say cl, is unity. In what follows …


The Reaction Between Aluminum And A Germicidal Soap Contaiming Mercuric Iodide, Gordon C. Mueller Jul 1932

The Reaction Between Aluminum And A Germicidal Soap Contaiming Mercuric Iodide, Gordon C. Mueller

Bachelors’ Theses

The verification of previous research concerning the action of mercuric halides on aluminum, together with a study of the action of soaps containing these halides, is the purpose and privilege of this paper.


A Study Of The Deposition Of Wax In A Wax Emulsion By Electricity, Howard Mcdonald Jul 1932

A Study Of The Deposition Of Wax In A Wax Emulsion By Electricity, Howard Mcdonald

Bachelors’ Theses

The basis of this thesis resides in an experiment performed by Dr. J.R. Koch of Marquette University during the summer of 1931. Dr. Koch poured some liquid emulsion into an "H" tube and attached the electrodes to a source of DC current. A few days later he noticed the wax bad separated from the emulsion and had passed to the positive electrode leaving the solution surrounding the negative electrode clear.


Problem-Solving In Arithmetic, Eva M. Acker Jul 1932

Problem-Solving In Arithmetic, Eva M. Acker

Bachelors’ Theses

For a century arithmetic has been a popular subject in the elementary schools, and has consumed more time than any other subject. The war had an effect in reducing this time on arithmetic, largely due to the war-time emphasis on health, food production, back-of-the-line morale, and kindred subjects. More recently, school activities and playground work have come in for a reasonable share of the school time. The Twenty-ninth Yearbook recognizes the child as the center of interest, and the final criterion of all values being the effect any technique of teaching or any content of instruction has on the child. …


The Recovery Of Copper In Sulphide Ores By Roasting, Leaching, And Electrolysis, Jack S. Greenough Jun 1932

The Recovery Of Copper In Sulphide Ores By Roasting, Leaching, And Electrolysis, Jack S. Greenough

Bachelors Theses and Reports, 1928 - 1970

Sulphide ores of copper are insoluble in dilute sulphuric acid leaching solutions, but a very high extraction can be obtained if the copper ore is in the oxidized condition. The problem is to convert the sulphide into the oxide form. This can be done by giving the sulphide ore an oxidizing-sulphatizing roast. Copper sulphate is soluble in water, so acid will be saved in the leaching process if copper sulphate is present. The iron in the copper sulphide ores is present as pyrite, or in combinations as bornite, or chalcopyrite.


Some Notes On The Composition Of "Copper Pitch", Richard R. Matthew Jun 1932

Some Notes On The Composition Of "Copper Pitch", Richard R. Matthew

Bachelors Theses and Reports, 1928 - 1970

A supply of so-called "copper pitch" ore was received by the Montana Bureau of Mines and Geology in response to a request by them from a resident of Kalispell, who had previously sent a specimen to the Bureau for a mineralogical analysis.

Since this material was little known and had apparently received but little study under a reflec­ting microscope, it was thought that such a study might throw some light on the mineralogical and chemical composition of the material.


The Aplitic Body Bordering Roosevelt Drive South Of Butte, Montana, Edward B. Trueworthy Jr. Jun 1932

The Aplitic Body Bordering Roosevelt Drive South Of Butte, Montana, Edward B. Trueworthy Jr.

Bachelors Theses and Reports, 1928 - 1970

The area studied consists of a large body of aplite situated 12 miles south of Butte. It extends eastward almost to the Butte-Pipestone road, southward to Lime Kiln Hill and westward a distance of 3000 feet.

The petrographic work was supplemented by a map of the area. Special attention was given to those frequent "Limonite Specks" found in the aplite.


Joint Planes In The Rhyolites Of The Butte District, Montana, John B. Hopkins Jun 1932

Joint Planes In The Rhyolites Of The Butte District, Montana, John B. Hopkins

Bachelors Theses and Reports, 1928 - 1970

The problem herein discussed deals with the pointing planes found in the area of rhyolite located in the northwestern portion of the Butte District. The question to be determined was whether or not the pointing planes in the rhyolites could be class­ified with the Butte Ore fissure systems.


A Bentonite Deposit Near Warm Springs, Montana, R. H. Larson Jun 1932

A Bentonite Deposit Near Warm Springs, Montana, R. H. Larson

Bachelors Theses and Reports, 1928 - 1970

This report deals with a bentonite deposit recently developed, approximately seven miles northeast of Warm Springs, Montana. A group of claims have been staked on the deposit and are owned by the Lincoln Mining Company of Anaconda, Montana. The company also has several claims prospected for silver one mile from its present site of operations, but the silver prospects have failed to produce. The bentonite deposit was discovered incidentally during the course of other development work, and at present two adits have been driven into the side of a mountain, each crosscutting a vein-like mass of bentonite varying from two …


The Monadnock Volume 6, Number 2, June 1932, Clark University Geographical Society Jun 1932

The Monadnock Volume 6, Number 2, June 1932, Clark University Geographical Society

The Monadnock (Clark Geographical Society)

Volume 6, Issue 2 of The Monadnock. The Monadnock was the alumni magazine of the Clark University Geographical Society (1927-1985) (2014-present).


Arithmetical Progressions, Frances Agnes Scherkenbach Jun 1932

Arithmetical Progressions, Frances Agnes Scherkenbach

Bachelors’ Theses

Of the origin and the methods of treatment very little is known. The arithmetic and geometric progression first attracted attention after the Greeks had brought into prominence the harmonic series. The term ’series’ is derived from the Greek, while the term’ progression’ is derived from the Latin. The latter term was used most prominently until the seventeenth century, during which period the writers seemed to prefer the term "series" which is now mosy [sic] generally used.


The Quantitative Estimation Of Solvents And Non-Solvents As Found In Lacquer Preparations, Harry Katzowsky Jun 1932

The Quantitative Estimation Of Solvents And Non-Solvents As Found In Lacquer Preparations, Harry Katzowsky

Bachelors’ Theses

The study of solvents and non-solvents in lacquers entails a great deal of work which is unable to be covered in so small a space of time, and although this thesis attempts to understand the use of these solvents and non-solvents, it is just a mere uncovering of much more interesting work able to be done with further analysis in this field.


The Rate Of Precipitation Of Copper Aluminide In The Silver Rich Silver-Copper-Aluminum Alloys, Thomas Finley Mcbride May 1932

The Rate Of Precipitation Of Copper Aluminide In The Silver Rich Silver-Copper-Aluminum Alloys, Thomas Finley Mcbride

Bachelors Theses and Reports, 1928 - 1970

In order to determine the best annealing temperature at which to age-harden the alloys, hardness tests on speci­men annealed for different lengths of time at different temperatures were made.


The Effect Of Hydrogen Overvoltage On The Electrolytic Deposition Of Zinc, John M. Munzenrider, Kenneth O. Sweeney May 1932

The Effect Of Hydrogen Overvoltage On The Electrolytic Deposition Of Zinc, John M. Munzenrider, Kenneth O. Sweeney

Bachelors Theses and Reports, 1928 - 1970

In the deposition of metallic zinc by electro­lysis from neutral or acid solution, little difficulty is experienced provided certain impurities are absent from the electrolyte. The use of the process has long been considered as a potential source, patents on the process having been issued as early as 1880. However, the early experimenters failed to realize the importance of impurities in the electrolyte, and for this reason, the process suffered several severe setbacks when commercial plants were built.


The Electrolytic Deposition Of Chromium Upon Aluminum, E. Fults, L. D. Voerge May 1932

The Electrolytic Deposition Of Chromium Upon Aluminum, E. Fults, L. D. Voerge

Bachelors Theses and Reports, 1928 - 1970

The purpose or this investigation is primarily to determine the best conditions for plating chromium on aluminum. The work was carried out with the hope of obtaining coherent deposits, and of determin­ing the conditions under which such deposits may be duplicated.


A Study Of Methods For Determining The Solvents And Diluents Used In Lacquers, William O'Donnell May 1932

A Study Of Methods For Determining The Solvents And Diluents Used In Lacquers, William O'Donnell

Bachelors’ Theses

The subject matter of this thesis deals with methods of analysis for lacquer solvents and diluents. Lacquers are a comparatively new product and a big field of investigation is open to anyone. This subject as taken bee use it offered a special appeal to be able to investigate something that was new and practical.


The Problem Of The Trisection Of The Angle, Ruth O'Brien May 1932

The Problem Of The Trisection Of The Angle, Ruth O'Brien

Bachelors’ Theses

The great problem of the trisection of the angle dates back to the rise of the Sophist School about 480 B.C. The Sophist School was one of six Greek mathematical schools which included the Iconic, Pythagorean, Platonic, First Alexandrian and Second Alexandrian Schools. The periods of their existence overlapped considerably. thus, for example, Pythagorean activity continued during the time of the Sophists until the opening of the Platonic School. The rise of the Sophists to prominence came as a result of certain social and political conditions of the time.


The History Of The Parallel Postulate And Non-Euclidean Geometry, Clare Switalski May 1932

The History Of The Parallel Postulate And Non-Euclidean Geometry, Clare Switalski

Bachelors’ Theses

After approximately two thousand years mathematicians have ventured to dispute the geometry of Euclid. Euclid's axioms were regarded as indisputable laws of space, the sole source from which his theorems were deduced. One needs only to survey the history of the controversies concerning his parallel postulate to be convinced that his assumptions are only metaphysical, since these assumptions can be changed when a space different from Euclid's is considered.