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Articles 6151 - 6180 of 6259
Full-Text Articles in Entire DC Network
A Junior High School Teacher Tackles Her Reading Problems, Irma W. Young
A Junior High School Teacher Tackles Her Reading Problems, Irma W. Young
Masters Theses
No abstract provided.
Credit Unions With Special Emphasis On Teacher Credit Unions In Illinois, Robert Gene Wrenn
Credit Unions With Special Emphasis On Teacher Credit Unions In Illinois, Robert Gene Wrenn
Masters Theses
No abstract provided.
The Activity Program In A Junior High School, Joseph C. Whitacre
The Activity Program In A Junior High School, Joseph C. Whitacre
Masters Theses
No abstract provided.
A Study Of The Extent To Which High School Coaches Of Illinois Use Audio-Visual Materials And The Value They Attach To Them, Paul E. Swofford
A Study Of The Extent To Which High School Coaches Of Illinois Use Audio-Visual Materials And The Value They Attach To Them, Paul E. Swofford
Masters Theses
No abstract provided.
Reporting To The Parents The Progress Of Children In The Elementary School, Paul Raymond Beauchamp
Reporting To The Parents The Progress Of Children In The Elementary School, Paul Raymond Beauchamp
Masters Theses
No abstract provided.
The Benefits Of Orchestration For The High School Orchestra Conductor, Robert D. Climer
The Benefits Of Orchestration For The High School Orchestra Conductor, Robert D. Climer
Masters Theses
No abstract provided.
A Study Of The Business-Education Curriculum In The Charleston Community High School, Artrel A. Mills
A Study Of The Business-Education Curriculum In The Charleston Community High School, Artrel A. Mills
Masters Theses
No abstract provided.
An Investigation Of The Use Of Surface-Active Agents In The Secondary Recovery Of Oil By Water Flooding, Robert P. Schafer
An Investigation Of The Use Of Surface-Active Agents In The Secondary Recovery Of Oil By Water Flooding, Robert P. Schafer
Masters Theses
"The importance of producing oil cannot be emphasized enough in this modem world. Therefore, when primary methods of production seemingly exhaust the oil reservoirs, a secondary method of producing more oil is a necessity. At the present time, secondary methods of oil recovery have developed into a large industry. They are not a new development. The need of introducing compressed air or air-gas mixtures into the wells to increase production was quickly realized. Water flooding methods followed, and at first were restricted to the Eastern fields. Later, about 1935, systematic water flooding methods were developed and applied all over the …
Photoelastic Investigation Of The Stresses In A Capless Connecting Rod, Gerald Delaine Smith
Photoelastic Investigation Of The Stresses In A Capless Connecting Rod, Gerald Delaine Smith
Masters Theses
"For a great many years the primary method used to solve engineering problems was by the use of mathematics. However, rigorous and simple mathematical solutions are only possible if the geometry of the member and its loadings are relatively simple. When irregular shapes with complex loadings are encountered, rigorous mathematical solutions for stresses induced are either impossible or very cumbersome. In such cases, the engineer must resort to other methods which are available today.
This paper attempts to show the application of the photoelastic method to such a problem. Moreover, it will show the comparative ease with which the designer …
The Sociometric Technique With A Seventh-Grade Class In Social Studies And English, Cleo Chapekis
The Sociometric Technique With A Seventh-Grade Class In Social Studies And English, Cleo Chapekis
Masters Theses
Chapter I
The Problem and Its Background
Introduction
Man is a social or group animal. With few exceptions all the activities in which he indulges depend on the cooperation, presence, and in many cases the assistance of other men. Thus it can be seen that man is likely to seek the association of others so that his activities may be carried on more effectively.
The social function of man is illustrated in the comment of Cole and Bruce, that follows:1
"From the moment the child is born, and never ceasing thereafter throughout his life, his social environment teaches him …
A Survey Of The Forms Used In The Organization And Administration Of Off-Campus Student Teaching In Business Education In The Public High Schools Of The United States, Fredrick Donald Luallen
A Survey Of The Forms Used In The Organization And Administration Of Off-Campus Student Teaching In Business Education In The Public High Schools Of The United States, Fredrick Donald Luallen
Masters Theses
No abstract provided.
A Study Of Size Of Diamonds In Diamond Drilling, Robert J. M. Miller
A Study Of Size Of Diamonds In Diamond Drilling, Robert J. M. Miller
Masters Theses
" ''A Study of Size of Diamonds in Diamond Drilling' is the research problem which will be discussed in this treatise.
The author's interest in the effect of size of diamonds was created by Mr. R. D. Longyear of the E. J. Longyear Company of Minneapolis, Minnesota. Mr. Longyear, when asked for suggestions for a research problem concerning diamond drilling suggested, among other things, that there was a need for further work on the factor of size of stones. After extensive reading and reviewing, the author learned that many investigators had recognized changes in results attributable to changes in size …
An Investigation Of End-Anchorage And Performance Of Sr-4 Strain Gages On A Prestressed Concrete Beam, Howard W. Nunez Jr.
An Investigation Of End-Anchorage And Performance Of Sr-4 Strain Gages On A Prestressed Concrete Beam, Howard W. Nunez Jr.
Masters Theses
"In recent years there has been brought to the attention of engineers and architects a new medium of construction---prestressed concrete. Reinforced concrete has long been recognized as a satisfactory material for use in the construction of buildings, bridges, highways, tanks and other structures. However, most concrete designers will concede that this material has many drawbacks. For instance, in a simple beam of rectangular cross-section, roughly only one half or the concrete is relied on to resist compressive forces. The tensile strength of the concrete is considered to be zero, and steel bars or rods must be inserted to carry the …
The Application And Utilization Of Mining Models For Instruction And Display, William M. Shepard
The Application And Utilization Of Mining Models For Instruction And Display, William M. Shepard
Masters Theses
"The subject of the utilization of mine models for instruction and display at institutions offering courses in mining engineering has not been widely discussed in the literature. The value of models as visual aids in teaching has long been recognized, and they have been extensively employed by some institutions and by some instructors. However, the writer believes that a wider range of types of models are suitable for instruction purposes than have been employed in the past, and that mining models, properly arranged and adequately labelled, may be used in displays to give both the layman and the beginning student …
A Comparison Of The Real Price And Market Price Of Some Common Metals, Kon-Hock Khaw
A Comparison Of The Real Price And Market Price Of Some Common Metals, Kon-Hock Khaw
Masters Theses
"A number of complex factors influence the fluctuation of the price of a metal. In this investigation, the writer is concerned with the influence of the purchasing power of the dollar and, therefore the difference between the value (real price) and market price of nine metals. That is, this is a study of metal prices and their corresponding values. No attempt is made to analyze the supply and demand of the past or the future, except as they are expressed by their function -- price.
To aid in the comparison, a set of index numbers for metals is compiled and …
An Efficiency Analysis Of Underground Haulage In The Tri-State Mining District, Leroy King Wheelock
An Efficiency Analysis Of Underground Haulage In The Tri-State Mining District, Leroy King Wheelock
Masters Theses
"Purpose of Investigation: This study was undertaken to describe and analyze the system of haulage as practiced in mines of the Tri-State District by the Eagle Picher Mining and Smelting Company.
The investigation is concerned with all of the operations involved in moving the broken rock and is composed of three distinct procedures: loading, hauling, and hoisting.
One of the important items in the cost of mining is the movement of ore and waste to the surface for further disposition. Increased efficiency of transportation should introduce lowered production costs.
In this paper the efficiency of the present equipment and the …
The Fluorescence Of Uranium In Solid Solution, Robert Emmett Kelly
The Fluorescence Of Uranium In Solid Solution, Robert Emmett Kelly
Masters Theses
"The fluorescence of uranium finds its greatest application in the so-called "bead test" which is a method of qualitative analysis. In the form of a bead, the uranium is in solid solution, and if the proper chemical solvent is used, the bead will fluoresce under ultraviolet radiation.
In the systematic separation of the metallic elements, uranium is associated with the aluminum group in that it is not precipitated by hydrogen sulfide in 0.3 N H ion but is precipitated by ammonium hydroxide and ammonium sulfide. In the analytical scheme, uranium acts like beryllium. This process of detection is sometimes tedious …
Hydrology Of Small Drainage Areas, James Kinchen Searcy
Hydrology Of Small Drainage Areas, James Kinchen Searcy
Masters Theses
"Realizing the need for data on small drainage areas the Missouri Highway Commission in 1947 began a cooperative project with the Water Resources Division of the United States Geological Survey which includes the establishment of small area gaging stations and recording rain gages.
The purpose of this investigation is to study some of the data collected in the few years of operation of these small area stations with the aim of testing some of the hydrologic tools useful in the study of larger drainage basins to determine their applicability on small drainage basins. The relationship between the runoff of large …
Porosity-Permeability Relationships Of Unconsolidated Sands, Robert Marchel Ponder
Porosity-Permeability Relationships Of Unconsolidated Sands, Robert Marchel Ponder
Masters Theses
"Unconsolidated sand reservoirs containing oil and gas present difficult problems to the petroleum engineer. Among these problems is that of the determination of the reservoir porosity to facilitate oil and gas reserve and evaluation calculations.
This problem is especially difficult because, to the author's knowledge, no method has been devised to obtain a core sample of the unconsolidated sand that retains the same porosity and permeability characteristics in the laboratory as it had underground. As a result, the petroleum engineer must rely upon empirical methods of calculating the reservoir porosity when the sand is not consolidated.
Many investigators have attempted …
X-Ray Studies Of Zirconium Cyanonitride, John T. Ballass
X-Ray Studies Of Zirconium Cyanonitride, John T. Ballass
Masters Theses
"The purpose of this research was to study, by means of x-ray and metallographic analysis, a material reported to be zirconium cyanonitride.
The x-ray analysis had a three fold purpose, the determination of the symmetry of the constituents, the number of phases present, and the crystal structure type. Metallography was used to confirm some of the results obtained by x-ray analysis establishing certain definite phase relationships present in the microstructure.
The sample investigated contained three principal elements namely zirconium, nitrogen, and carbon. On the basis of constitution this work is a contribution toward the development of the three component equilibrum …
Direct Reduction Of Zinc Sulfide Under Vacuum, Merritt E. Langston
Direct Reduction Of Zinc Sulfide Under Vacuum, Merritt E. Langston
Masters Theses
"The present work is a continuation of the previous investigations of Gross and Warrington and Liu in which the effect of various reducing agents on the vacuum reduction of zinc sulfide was studied. The author became interested in this topic while reading the papers by these investigators in which they recommended that further work be performed in an attempt to prevent zinc sulfide from distilling over during reduction, thereby contaminating the zinc condensate. The original plan was to perform a few runs for the purpose of duplicating the results that were reported by Liu, and from this point carry on …
The Value Of Mental Arithmetic In Grades Seven And Eight, Edward Oren Kay
The Value Of Mental Arithmetic In Grades Seven And Eight, Edward Oren Kay
Masters Theses
Chapter I
The Problem and Its Background
Introduction
This study, entitled, "An Experimental Study of the Value of Mental Arithmetic in Grades Seven and Eight," is the report of an experimental investigation in teaching arithmetic. It was conducted for the purpose of determining whether or not the use of daily drill in the four fundamental processes or arithmetic, as well as in thought problems that involve one or more of these fundamental processes, has a tendency to develop general arithmetical abilities in children.
As far as the writer can determine, little research has been done in this area. The dearth …
State And Local History In Michigan Schools, Robert R. Swartz
State And Local History In Michigan Schools, Robert R. Swartz
Masters Theses
Chapter I
The Problem and Its Background
State and Local History Defined
State and local history may be considered relatively as geographical terms. In Europe, German history is state history. In the United Sates, Michigan history is local history. In Michigan, St. Joseph County history is local history. In St. Joseph County, the history of a village, township, or school district is local history. For the purposes of this study state history will refer to the history of Michigan. Also, in this study, local history will refer to the history of a county, township, village, or school district in this …
A Comparison Of The Relative Effectiveness Of Teaching Seventh Grade Arithmetic With A Textbook And Without A Textbook, Alfred John Reynolds
A Comparison Of The Relative Effectiveness Of Teaching Seventh Grade Arithmetic With A Textbook And Without A Textbook, Alfred John Reynolds
Masters Theses
Chapter I
The Problem and Its Background
The Place of Arithmetic in Modern Education
The subject of arithmetic is as old as human history itself and yet it holds a very important place in modern education. In order to have a clear understanding of its present position it is desirable that a brief history of arithmetic be given. Since the history of arithmetic is long and since much has been written concerning it, an attempt will be made here to cover only the main thread in its development.
The Babylonians, according to records, made the first use of arithmetic. Karpinski …
An Experimental Study Of The Relative Effectiveness Of Drill And Incidental Teaching In The Learning Of The Multiplication Tables, Rena May Gates
An Experimental Study Of The Relative Effectiveness Of Drill And Incidental Teaching In The Learning Of The Multiplication Tables, Rena May Gates
Masters Theses
Chapter I
The Problem and Its Background
The Importance of Arithmetic
Man, since ancient times, has found a need for the use of numbers. This need started with simple numeration of quantities in daily life, and developed gradually to the complex use of arithmetic in trade and exchange. In the simplest form of family life, the number sense was exhibited in counting members of the family, years in one's life, or articles in one's possession. But as a family contacted other groups, and simple exchange took place, a gradual increase in need for numbers resulted in greater use of systems …
The Effect Of The Use Of A Textbook As Compared With Supplemental Material In Teaching Biology, Wayne A. Stafford
The Effect Of The Use Of A Textbook As Compared With Supplemental Material In Teaching Biology, Wayne A. Stafford
Masters Theses
Chapter I
The Problem and Its Background
Biology in the Secondary School Curriculum
There is ample evidence, both direct and tacit, that biology has justified its place in the curriculum of the secondary school.
Among the direct evidence is that stated by Heiss, Obourn, and Hoffman1 as follows:
"On the Senior High School level, general biology is well established as a tenth grade course and is usually offered as an elective for each of three years. There is a considerable body of evidence available that seems to indicate that both general science and biology are going a long way …
A Lead Sulfide Near Infrared Detection System, William V. Cummings Jr.
A Lead Sulfide Near Infrared Detection System, William V. Cummings Jr.
Masters Theses
"The infrared region of the spectrum is conveniently divided into the near infrared, which extends from the red end of the visible to about 25 microns, and the far infrared, which continues to an ill-defined division point of approximately 1,000 microns. The near infrared region has been further subdivided on the basis of instrumental techniques so that the particular portion of the spectrum consisting of radiations of wave length up to 3 microns has become known as the photoelectric infrared.
Several types of detection instruments have been designed and perfected for work in the photoelectric region, but new methods and …
A Light Source To Be Used With A Vacuum Spectrograph, Roy George Woodle Jr.
A Light Source To Be Used With A Vacuum Spectrograph, Roy George Woodle Jr.
Masters Theses
"A grazing incidence vacuum grating spectrograph for use in the vacuum ultraviolet was designed and partially constructed by Mr. L. H. Chapin, as a research project for a Master’s Degree. This instrument is designed to photograph the region of the spectrum from 100 Å to 1000 Å. As Boyce pointed out in his exhaustive review, there is much important observational work to be done in this region.
The author of this paper has undertaken to develop a satisfactory source for the region from 100 Å to 1000 Å. This is part of a project to photograph the emission and absorption …
A Correlation Function For Liquid Argon, Walter Graham
A Correlation Function For Liquid Argon, Walter Graham
Masters Theses
"X-ray scattering patterns have given considerable information concerning atomic distributions in matter, both crystalline and amorphous. Work on the diffraction of x-rays by crystals was begun in 1912 by Friedrich, Knipping, and Laue, and much valuable information concerning the arrangement of atoms in crystals has been supplied by this method. Diffraction of x-rays by gases was studied as early as 1911, and work in this field has given information concerning the arrangement of atoms in molecules and electron distribution in atoms. Work on the diffraction of x-rays by liquids was begun by Friedrich who obtained diffraction patterns of Canada Balsam, …
A Method Of Mining The Kumtepe Lignite Deposit Of Turkey, Hilmi Dokuzoglu
A Method Of Mining The Kumtepe Lignite Deposit Of Turkey, Hilmi Dokuzoglu
Masters Theses
"The Agacle lignite deposit, as a potential source of fuel, near Istanbul, Turkey has been used in this study to apply the principles of strip mining operations. The details of the deposit upon which this thesis is predicated will be presented later in this paper.
The fuel requirement of the city of Istanbul with a population of nearly a million is considerably greater then can easily be met. Some of the fuel needs are accommodated by electrical energy by producer gas, by bituminous coal brought from Zonguldak (about 200 miles from the city), by charcoal, and by fuel wood. During …