Physical Sciences and Mathematics Commons^™

The Completion, Adjustment, And Operation Of A Grazing Incidence Vacuum Ultraviolet Spectrograph, William Clinton Johnson-Chamberlain

Masters Theses

"Most gases, and particularly oxygen and nitrogen, are nearly opaque to radiation in the region from about 1800 Å downward to about 2 Å and hence, for spectroscopic work in this region, the removal of these gases is mandatory. Popular usage generally refers to the range mentioned above as the vacuum ultraviolet. That there remains much experimental work to be done in the vacuum ultraviolet has been pointed out by Boyce in his exhaustive survey of vacuum ultraviolet spectroscopy. In order to fill in some of these gaps, Mr. L. H. Chapin, in the, spring of 1950, undertook the construction …

The Polarographic Determination Of Germanium, Herbert L. Bowkley

Masters Theses

"The purpose of this investigation was to study the polarographic behavior of germanium in various aqueous solutions. In addition to the simple polarographic behavior of germanium some attention was given to the applications or polarography for the development of an anlytical [sic] procedure for its quantitative determination in zinc ore concentrates and spelter fume materials"--Introduction, page 1.

Geology Of The North Half Of The Meramec Spring Quadrangle, Missouri, Harold Edward Mueller

Masters Theses

"The Ozark region is visited by many persons each year, and one of its popular tourist attractions is Meramec Spring. In recent years, with the advent of better roads and swifter means of transportation, visitors are coming to this beautiful spring in increasing numbers. For those who are geologists, this work will serve as a handy guide; for those who are laymen, this work may give a better understanding of the geologic events which have made this part of the Ozarks a place of scenic beauty. Mapping of the Meramec Spring Quadrangle will complete a program of geologic mapping of …

Geology And Mineralization Of The Jefferson Mine, Hardin County, Illinois, Robert Joe Cronk

Masters Theses

"Purpose of the Investigation: The geology of the Jefferson Mine was mapped to determine the relationship of the two fluorspar veins exposed on the 260-foot level to the single vein on the 200-foot level to study the mineralogy and paragenesis of the ore, and to gain any other information that would lead to a better understanding of the fluorspar deposits"--Introduction, page 1.

The Polarization Of Zodiacal Light, Maynard Cowan

Physics & Astronomy ETDs

It was the purpose of this study, (1) to measure the polarization of zodiacal light, (2) to investigate the orientation of the plane of polarization, and (3) to deduce from results obtained information concerning the origin of zodiacal light.

Intermediate Compounds In The Synthesis Of Lignin, Paul Spencer Gakle

University of the Pacific Theses and Dissertations

The synthesis of a keto-aldehyde from salicylaldehyde and benzaldehyde was attempted. The first step was to protect the carbonyl with a non-reactive group.

The bisulfite addition product and the 2,4-dinitrophenylhydrazone of salicylaldehyde were prepared. The methyl acetal, the sodium bisulfite addition product, and the 2,4-dinitrophenylhydrazone of benzaldehyde were also prepared.

The bisulfite addition of both aldehydes was found to be too unstable in the presence of aldehyde was recovered in each case. The methyl acetyl chloride also decomposed. This necessitated finding a more stable group to protect the aldehyde.

The 2,4-dinitrophenylhydrazone was unaffected by treatment with anhydrous aluminum chloride in …

United States Patent: Antenna Guy Fitting, Robert Katz

Robert Katz Publications

The invention to be hereinafter described relates to coupling devices for the attaching of fixed wire antenna to aircraft.

Heretofore, it has been the general practice to make connections between the fixed wire antenna and aircraft by wrapping the antenna wire about a thimble or like device, as in making a splice.

This practice resulted in a number of sharp points and rough surfaces whose susceptibility to corona discharge is well known. This corona discharge resulted in bad weather extremely difficult or dangerous due to interruption of radio navigation and communication services.

The present invention is designed to overcome the …

The Monadnock Volume 25, Number 1, December 1950, Clark University Geographical Society

The Monadnock (Clark Geographical Society)

Volume 25, Issue 1 of The Monadnock. The Monadnock was the alumni magazine of the Clark University Geographical Society (1927-1985) (2014-present).

Application Of X-Ray Technique To The Detection Of Internal Insect Infestation Of Grain, Max Milner, Milford R. Lee, Robert Katz

Robert Katz Publications

During the course of a comprehensive investigation of methods for the determination of internal insect infestation in commercial wheat, radiographic techniques have been developed at this station which provide satisfactory delineation of internal infestation. We have applied these techniques to the observation of the growth of such insects as granary weevil, Sitophilus granaries L., and rice weevil, Sitophilus oryza L., from the hatching of the egg within the kernel through larval and pupal growth to emergence as a mature insect. Although considerable detail is always lost in the reproduction of radiographs during engraving and printing, the accompanying figures (1, …

Test 454: Dodge Power Wagon T137, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 454: Dodge Power Wagon T137, 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 Kinetics Of The Exchange Between Sn(Ii) And Sn(Iv) In Absolute Alcohol, E. Gerald Meyer

Chemistry and Chemical Biology ETDs

The radiochemical exchange reaction may in general be written AX+BX^• = +BX where X^• represents a radioactive atom of X. The species AX and AX^• are assumed to be chemically identical as are the species BX and BX^•. This assumption introduces no appreciable error even when working with atoms having an atomic weight as low as fourteen.

Lagoon Data (1950), Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

Supplement To Odor Report (1950), Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

Odor Report (1950), Walter Lawrance

Walter Lawrance Papers

No abstract provided.

Sulphite Pulp Production (1950), Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

Analytical Data (1950), Walter Lawrance

Walter Lawrance Papers

No abstract provided.

Press Reports (1950), Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

Addition Of Sodium Nitrate (1950), Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

A Simple Experiment On Heat, Robert Katz

Robert Katz Publications

This experiment requires apparatus consisting of two ring stands, two bunsen burners, safety matches, a sheet of hard asbestos board and a sheet of aluminum of approximately the same dimensions (6 in. long by 3½ in. wide by ⅛ in. thick). The ring stands are set side-by-side with the sheet of aluminum on one and the sheet of asbestos on the other. Two matches are placed on each sheet; one in the middle directly above the bunsen burner and one on the edge, two or three inches away. In what order will the matches catch fire after the burners are …

Test 453: Allis-Chalmers Ca, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Some Reactions Of 4-Chlorocinnoline, F. H. Kruse

Chemistry and Chemical Biology ETDs

This problem involves the preparation of 4-chlorocinnoline by the method of Borshe and Herbert and Busch and Rast,^, and the study of further replacement reactions of the chlorine atom in the 4-position. The problem can be subdivided into two sections: (1) the preparation of the 4-cinnolyl Grignard reagent and the corresponding lithium compound and (2) the study of some condensation reactions of 4-chlorocinnoline.

Test 452: Massey-Harris 55 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 451: Oliver 99, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 451: Oliver 99, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 450: Oliver Row Crop 88 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 449: Choremaster B, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Effect Of Stubble Mulching On Number And Activity Of Earthworms, S. P. Teotia, F. L. Duley, T. M. Mccalla

Nebraska Agricultural Experiment Station: Historical Research Bulletins

A survey of earthworm population under different cropping systems was made under stubble mulch farming and where the residue was plowed under. The influence of earthworms on some of the important physical and biological properties of the soil was studied. Their role in the decomposition of crop residues was also determined.

An Analytical Study Of Berberine, W. Riley Mcgaughran

Chemistry and Chemical Biology ETDs

Berberine, an alkaloid, has unique pharmacological properties as well as unusual chemical and physical characteristics. This compound has been used for many years as a remedy for eye diseases. In contrast to most alkaloids, berberine hydroxide is more soluble than its salts. Its chemical structure has been established, but a correlations of many of its properties and its structures has not been made.

The purpose of this work was to undertake an analytical study of berberine, hoping to collect data which would make possible the correlation of certain properties of the compound with its structure. The study was planned to …

The Application Of Qualitative Inorganic Macro Procedures And Reagents To Spot Test Analysis, John Albert Stich

Bachelors’ Theses

Qualitative inorganic analysis is that branch of applied chemistry which has to do with the systematic detection or identification, and separation of the various metals and groups of elements which make up inorganic compounds. The indentification is made on the basis of precipitates and the color changes thereof, which result when a specific reagent is added to a solution of the sample. As opposed to quantitative analysis, measurability is not the essential factor, but it must be possible to observe the reaction easily and indubitably. It is not necessary for the material being tested for to be converted completely to …