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Articles 58051 - 58080 of 58435
Full-Text Articles in Entire DC Network
An Investigation Of The Toxicity Of Tung Meal., James Arthur Watson
An Investigation Of The Toxicity Of Tung Meal., James Arthur Watson
LSU Historical Dissertations and Theses
No abstract provided.
The Preparation, Characterization, And Thermal Decomposition Products Of Di-Tertiary Butyl-Carbonate And Tertiary Butyl-Chlorocarbonate., James Wesley Rogers
The Preparation, Characterization, And Thermal Decomposition Products Of Di-Tertiary Butyl-Carbonate And Tertiary Butyl-Chlorocarbonate., James Wesley Rogers
LSU Historical Dissertations and Theses
No abstract provided.
The Migration Of Acyl Groups In Ortho-Aminophenols., Edgar Dumont Smith
The Migration Of Acyl Groups In Ortho-Aminophenols., Edgar Dumont Smith
LSU Historical Dissertations and Theses
No abstract provided.
Piedmont Interstream Surfaces Of The Colorado Springs Region., Benjamin Almon Tator
Piedmont Interstream Surfaces Of The Colorado Springs Region., Benjamin Almon Tator
LSU Historical Dissertations and Theses
No abstract provided.
Geology Of The Berryman Area, Washington County, Missouri, Jack Alexander James
Geology Of The Berryman Area, Washington County, Missouri, Jack Alexander James
Masters Theses
"Purpose and scope - The are discussed in this thesis was selected because of recent exploration for lead within this region and because of the need for more detailed information of the structure and geologic history of the area. The work constitutes part of a program of geologic mapping by the Missouri Geological Survey and Water Resources to complete the mapping of a strip of quadrangles extending across the Ozark Uplift from Rolla eastward to the Mississippi River"--Introduction, page 1.
Reduction Of Beryllium Compounds With Magnesium, Pei Wang
Reduction Of Beryllium Compounds With Magnesium, Pei Wang
Masters Theses
"The purpose of this research was to investigate the thermal reduction of beryllium compounds and to devise a method to estimate the metallic beryllium content in the final product"--Introduction, page 1.
Hysteresis Loss Of Supermalloy At Different Temperatures, Chester Ray Holland
Hysteresis Loss Of Supermalloy At Different Temperatures, Chester Ray Holland
Masters Theses
"The object of this investigation was to measure the hysteresis loss of supermalloy at different temperatures, and to see if temperature had any effect on hysteresis loss and permeability. The maximum magnetizing current was held constant for all temperatures"--Introduction, page 1.
The Determination Of The Surface Tension Of Benzyl Ether, Sze-Kwei Min
The Determination Of The Surface Tension Of Benzyl Ether, Sze-Kwei Min
Masters Theses
"The accurate determination of surface tension is of importance in the investigation of theories of surface structure, the structure of liquids, molecular cohesion, in the study of colloids, especially in physiological work, and in various lines of technical chemistry. The two methods most commonly used for determining surface tension are the capillary rise method and the drop weight method. The theory of the former is simple, but its technique is difficult. Its use in some cases is the cause of errors as high as 30%, due to its inapplicability to certain classes of substance, and is much more sensitive to …
The Effect Of Spontaneous Crystallization Of Some Inorganic Compounds At The Critical Temperature Of Their Solvents, John William Buttrey
The Effect Of Spontaneous Crystallization Of Some Inorganic Compounds At The Critical Temperature Of Their Solvents, John William Buttrey
Masters Theses
"For many years the phenomena which occur at the critical temperature of liquids have been investigated. And since 1912, when Laue and other discovered that a beam of x-rays could be made to yield a diffraction pattern by passing it through a crystal, scientists have been attempting to change the x-ray pattern for various crystals by somehow changing the arrangement of the atoms in the crystal lattice. Harvalik has already shown that crystallization occurs when a solvent reaches the critical point and his work indicates that under these conditions of crystallization there is a change in the crystal pattern. The …
The Kerr Electro-Optic Effect In Plastic Materials Transmitting Infra-Red Radiation, James Edson Dueker
The Kerr Electro-Optic Effect In Plastic Materials Transmitting Infra-Red Radiation, James Edson Dueker
Masters Theses
"Much work has been done investigating the Kerr Electro-Optic effect and what physical properties of a substance lead to the occurrence of the phenomenon. Information now available indicates a relationship between molecular shape and orientation with the Kerr Effect, hence any added information increases the possibility for finding the exact relationship and the molecular structure of substances. The Kerr Effect, has been used in a number of applications other than for the study of molecular construction of matter. Many applications have been made to form Electro-Optic shutters. This field of work has been increased to include light flash production and …
Radioactivity Of The Pre-Cambrian Section Of The Bourbon, Missouri, Well Core By Measurement Of The Total Hard Gamma Radiation, Paul E. Damon
Radioactivity Of The Pre-Cambrian Section Of The Bourbon, Missouri, Well Core By Measurement Of The Total Hard Gamma Radiation, Paul E. Damon
Masters Theses
"In December of 1947 Mr. Robert Van Nostrand and the writer became interested in the problem of the distribution of natural radioactivity and the applications of radioactivity to geology. A cooperative survey of the literature on the subject was undertaken. Later the writer decided to follow up the survey with a research project. Consultations with Dr. Z. V. Harvalik of the Missouri School of Mines Physics Department, and Dr. E. L. Clark and Mr. O. M. Bishop of the Missouri Geological Survey, followed. The nature of the project was evolved when Dr. Clark, with the consent of the U. S. …
The Monadnock Volume 22, Number 1, December 1947, Clark University Geographical Society
The Monadnock Volume 22, Number 1, December 1947, Clark University Geographical Society
The Monadnock (Clark Geographical Society)
Volume 22, Issue 1 of The Monadnock. The Monadnock was the alumni magazine of the Clark University Geographical Society (1927-1985) (2014-present).
Electro-Deposition Of Iron From A Chloride Bath, Charles W. Noon
Electro-Deposition Of Iron From A Chloride Bath, Charles W. Noon
Bachelors Theses and Reports, 1928 - 1970
Iron was electro-deposited from a ferrous chloride bath. Studies were made of deposits formed when current density was varied, and finally when both current density and temperature were changed. An attempt was made to lay the ground work for a long range study of the chloride bath, and to determine the most simple conditions possible for obtaining a smooth, even, and thick deposit.
Chemical Products From Minnesota Peat, Willard P. Armstrong, Edgar L. Piret
Chemical Products From Minnesota Peat, Willard P. Armstrong, Edgar L. Piret
Journal of the Minnesota Academy of Science
No abstract provided.
The Preparation Of Certain Organic Chloroformates And Carbonates, Robert E. Brailsford
The Preparation Of Certain Organic Chloroformates And Carbonates, Robert E. Brailsford
Theses and Dissertations
This brief discussion and research paper attempts to correlate a large portion of the information about the preparation of known organic chloroformates and carbonates, to point out the present and possible future uses of these compounds, and to contribute some information concerning the preparation of a number of the organic carbonates. A comparison of the different methods of preparation is made.
Water Levels And Artesian Pressure In Wells In Las Vegas Valley And In Other Valleys In Nevada, 1913-1945, T. W. Robinson, George B. Maxey, J. C. Fredericks, C. Harry Jameson
Water Levels And Artesian Pressure In Wells In Las Vegas Valley And In Other Valleys In Nevada, 1913-1945, T. W. Robinson, George B. Maxey, J. C. Fredericks, C. Harry Jameson
Publications (WR)
The rock formations of the earth are great natural reservoirs in which a part of the water derived from rain and snow is stored. Water levels and artesian pressure in wells register the stages of these natural reservoirs. The changes in water levels or artesian pressure are indicative of the depletion or replenishment of the natural reservoirs. Systematic and periodic measurements of water levels and artesian pressure in wells have been made in Nevada, by State and Federal agencies from time to time. However, only a few of these measurements have ever been published. Under the cooperative arrangement between the …
Geology Of The Einstein-Apex Tungsten Mine Area, Joel B. Pomerene
Geology Of The Einstein-Apex Tungsten Mine Area, Joel B. Pomerene
Masters Theses
"The geological problem existing in the Silver Mine area, the relationship of mineralization to structure, particularly to faulting and jointing, was pointed out to the writer by Prof. O. R. Grawe. Several geologists have made reconnaisance [sic] surveys of the whole region, but so far no detailed geologic map has been published of the immediate area. Prof. Grawe pointed out that such a map would be of value in the better understanding of the area and would be especially useful in the event that another national emergency required the development of all possible sources of tungsten"--Introduction, Selection of the Problem, …
Lipide Stimulation Of Lactobacilli., Virginia R. Williams
Lipide Stimulation Of Lactobacilli., Virginia R. Williams
LSU Historical Dissertations and Theses
No abstract provided.
A Spectral Study Of Some Deuterated Toluenes., Charles Hooper Smith
A Spectral Study Of Some Deuterated Toluenes., Charles Hooper Smith
LSU Historical Dissertations and Theses
No abstract provided.
Pennsylvanian Stratigraphy Of The Colorado Springs Quadrangle, Colorado., Kenneth Phelps Mclaughlin
Pennsylvanian Stratigraphy Of The Colorado Springs Quadrangle, Colorado., Kenneth Phelps Mclaughlin
LSU Historical Dissertations and Theses
No abstract provided.
Geology Of The Ozark-Martin Mine Area, Madison County, Missouri, William Clifton Hayes
Geology Of The Ozark-Martin Mine Area, Madison County, Missouri, William Clifton Hayes
Masters Theses
"General descriptions of the region adjacent to the Ozark and Martin Mines of Madison County, Missouri have been included in a number of early publications dealing with the Einstein Silver Mine area, but a detailed geologic map has not been made. It was thought that through detailed mapping and by a detailed analysis of all of the geologic features present, a more definite relationship between mineralization and structure might be determined"--Introduction, Purpose and Scope of Work, page 1.
The Separation Of The Rare Earths Neodymium And Praseodymium By Precipitation As Chloride, Stanley Milton Kulifay
The Separation Of The Rare Earths Neodymium And Praseodymium By Precipitation As Chloride, Stanley Milton Kulifay
Masters Theses
"The purpose of this thesis is to provide a means of preparing highly purified samples of neodymium and praseodymium compounds when the material to be refined already exists in a state of approximate purity. The method described cannot be profitably used to purify the individual rare earths without first concentrating them. The process is not intended to be quantitative, for it is a fractional crystallization technique using a concentrated hydrochloric acid medium"--Introduction, page 1.
An Investigation Of The Colorimetric Methods For The Determination Of Fluorine By The Zirconium Alizarin Sulfonate Method, William Lewis Break
An Investigation Of The Colorimetric Methods For The Determination Of Fluorine By The Zirconium Alizarin Sulfonate Method, William Lewis Break
Masters Theses
"There has been a need for a rapid and an accurate method for the determination of fluorine in its compounds. Both gravimetric and volumetric methods have been studied, but both methods were time consuming or inaccurate or both. Colorimetric methods had been studied before F. Richter developed his method but none had been reported to be as satisfactory as his method. This method was investigated because it was thought that F. Richter's method would be a satisfactory colorimetric determination for fluorine in its compounds"--Introduction, page 1.
The Monadnock Volume 21, Number 1, December 1946, Clark University Geographical Society
The Monadnock Volume 21, Number 1, December 1946, Clark University Geographical Society
The Monadnock (Clark Geographical Society)
Volume 21, Issue 1 of The Monadnock. The Monadnock was the alumni magazine of the Clark University Geographical Society (1927-1985) (2014-present).
An Investigation Of The Meaning Of Α3 As A Measure Of Skewness, John W. Coy
An Investigation Of The Meaning Of Α3 As A Measure Of Skewness, John W. Coy
Mathematics & Statistics ETDs
The purpose of this study is the interpretation of α3 by means of a relatively simple formula which will predict the amount of shift in the effective limits of the Type III curve for a given change in the skewness. The methods used are chiefly empirical.
Studies In The Determination Of Iodine In Soils Organic Materials, And Waters, Russell T. Lundell
Studies In The Determination Of Iodine In Soils Organic Materials, And Waters, Russell T. Lundell
Theses and Dissertations
A summary of the literature on the nutritional value of iodine in the diet of various forms of life is given. The majority of evidence indicates that iodine is an essential element in plant and animal nutrition. It functions particularly in animal metabolism in the form of thyroxine. The occurrence of iodine in a nature has been briefly discussed. Investigations made in this regard indicate iodine to be almost universally distributed in very minute amounts. Most iodine salts are soluble in water and their distribution is affected by water movements. Results of iodine determinations made during the course of this …
A Study Of Retention Of Percentage, Fred Dellett
A Study Of Retention Of Percentage, Fred Dellett
Master's Theses or Doctor of Nursing Practice
The problem of this thesis was to determine by means of a test the retention of the fundamentals of percentage as shown by beginning eighth grade pupils, who were taught percentage the previous year in the seventh grade. The fundamentals of percentage are here considered as the changing of percents to decimal fractions or common fractions, the reverse procedures, and the three types of problems arising from the relation, base times rate equals part. These quantities, base, rate, and part, are represented in the example, 300 X 12% = 36, respectively. Because of the inherent relationship of decimal fractions and …
Geology And Ore Deposits Of The Dunmore Mine, Ouray County, Colorado, Caswell Silver
Geology And Ore Deposits Of The Dunmore Mine, Ouray County, Colorado, Caswell Silver
Earth and Planetary Sciences ETDs
The Dunmore lode is located near Ouray, Colorado in the northwest part of the San Juan Mountains. In structure as well as mineral assemblage it shows a connection between the chimneys and veins of the region. The lode averages about 100 feet wide for 1,200 feet along the Dunmore claim. The fissure zone is over two miles long and displacement along it has offset a folded pre-Cambrian complex 4,500 feet prior to the deposition of 2,400 feet of volcanic tuff. Fissures in the pre-Cambrian rocks controlled in part the intrusion of dikes and the formation of veins. Late Tertiary faulting …
A Study Of Form And Content For A Laboratory Manual To Be Used By Students In General Chemistry Laboratory, Berne P. Broadbent
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 …