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Articles 6181 - 6210 of 6580
Full-Text Articles in Entire DC Network
Art In The Junior High School: A Philosophical Study, Lena Weaver
Art In The Junior High School: A Philosophical Study, Lena Weaver
Masters Theses
No abstract provided.
The Scope Of An Industrial Arts Program For Community Unit School District #4 Of Paris, Illinois, Raymond V. Griffin
The Scope Of An Industrial Arts Program For Community Unit School District #4 Of Paris, Illinois, Raymond V. Griffin
Masters Theses
No abstract provided by author.
Some Effects Of Public School Music On The Development Of Adult Musical Interests And Activities, Charles E. Moore
Some Effects Of Public School Music On The Development Of Adult Musical Interests And Activities, Charles E. Moore
Masters Theses
No abstract provided.
The Use Of A Steady State Flow Reactor In The Study Of Rapid Gas Phase Reactions, Ormond Kennedy Lay
The Use Of A Steady State Flow Reactor In The Study Of Rapid Gas Phase Reactions, Ormond Kennedy Lay
Masters Theses
"The demonstration of the feasibility of rocket propelled devices for various purposes within the past few years has initiated an intensive search for suitable reactants for use as rocket fuels. Consequently, the investigation of the properties of chemical reactions which rapidly liberate large quantities of energy has assumed major importance. In order that such reactions may be adapted to practical use as rocket propellants knowledge of the characteristics of these reactions is required. Properties such as+ the mechanism of the reaction, the speed of the reaction under varied conditions of temperature, pressure and concentrations, the conditions required for the initiation …
Testing Of Missouri Shales For Light Weight Aggregate Production, Jerry D. Plunkett
Testing Of Missouri Shales For Light Weight Aggregate Production, Jerry D. Plunkett
Masters Theses
"The original objective of this investigation was to determine by testing those clays, shales, and loesses occuring in Missouri in large deposits (over 15 feet in thickness with little overburden), which would be suitable for the production of light weight aggregate. The second objective was to investigate the mechanism of bloating as related to the physical and chemical properties of the above materials, and by using these relationships cause clays which do not naturally bloat, to bloat using some addition. The use of additives would permit the economical use of material closer to the market in many instances.
After the …
The Closure Of Thin Wall Pressure Vessels, Archie W. Culp Jr.
The Closure Of Thin Wall Pressure Vessels, Archie W. Culp Jr.
Masters Theses
"The object of this thesis is to find various methods of closing thin wall aluminum cylinders. Such a closure must be strong enough, that when internal pressure is applied, ultimate failure will occur along a longitudinal element of the cylinder and not at the closure. Moreover, such a method must not only be mechanically sound, but it must be readily adaptable to mass production"--Introduction.
A Fundamental Study Of Clay Drying Using Ware Of Large Cross Section, Robert F. Grady Iii
A Fundamental Study Of Clay Drying Using Ware Of Large Cross Section, Robert F. Grady Iii
Masters Theses
"The drying of clay has been studied extensively in the past by many investigators, some of whom attempted to relate this information to the structure of clay and thereby develop a more vivid picture, while others studied the mechanism of drying in its own right in order to present a useable theory that would allow improvements in the drying operation.
At present the literature is unable to present a theory of the mechanism of drying that is sufficiently general to cover the observed aspects of clay drying. Many and varied mechanisms are presented, but correlation is seldom completely evident between …
Geology Of The South Half Of The Meramec Spring Quadrangle, Missouri, Howard Joseph Yorston
Geology Of The South Half Of The Meramec Spring Quadrangle, Missouri, Howard Joseph Yorston
Masters Theses
"This report is a continuation of the work initiated by Mueller in his mapping of the north half of the Meramec Spring Quadrangle. The completion of this work provides not only a geologic map of the whole quadrangle but also completes the mapping of the geology of a strip of quadrangles extending from Rolla to the Mississippi River. In addition to being a step closer to the goal of complete geologic coverage for the state, this work will be of value to those concerned with the prediction of depths of wells drilled in search for water, which in view of …
An Investigation Of Continuous Steel Beams In The Plastic Range, Robert Adams Shoolbred
An Investigation Of Continuous Steel Beams In The Plastic Range, Robert Adams Shoolbred
Masters Theses
"The purpose of this thesis is to investigate the action of beams in the plastic range. The test specimen will be a 4WF 13 structural shape continuous over three supports having equal span lengths of seven feet. Three types of loading were chosen. The first loading will be concentrated in the center of each span. The second loading will be a concentrated load in the center of one span only. The third loading will be the settlement of the two end supports until a plastic hinge forms at the center support, then the two spans will be loaded with concentrated …
Horizontal Pressures On Retaining Walls Due To Line Surface Loads, John B. Heagler
Horizontal Pressures On Retaining Walls Due To Line Surface Loads, John B. Heagler
Masters Theses
"Among the oldest types of structures with which engineers have had to deal are those which serve to laterally restrain masses of earth, or to prevent earth embankments from assuming their natural angle of repose. This is necessary where space is limited or the natural slope would encroach upon other property. These structures, usually called retaining walls, are subjected to forces, both lateral and vertical due to the pressures exerted by the backfill material and any loads imposed on the backfill material. The first step in the design of the retaining wall is to determine the magnitude, position, and line …
Investigation Of Soil Bricks As A Building Material, Ahmet Ilter
Investigation Of Soil Bricks As A Building Material, Ahmet Ilter
Masters Theses
"The need of a cheap construction material for small village farm construction in Turkey makes soil-cement a most desirable material. What is more, as far as the author knows, soil-cement has not found any application in farm house construction in Turkey as yet. So the author, being acquainted with his native country's house construction problem, and seeing the suitable application soil-cement have on such construction, came to the decision that he should investigate this problem thoroughly.
The main objective of the tests run in this investigation will be to find the strength of different samples of soil-cement. The stabilizer used …
The Design And Construction Of An Electronic D-C Analog Computer, Frederick R. Wagner, William A. Paar
The Design And Construction Of An Electronic D-C Analog Computer, Frederick R. Wagner, William A. Paar
Masters Theses
"To make this project realizable with the funds available and in the time allowed, and to set forth some definite goals, the following objectives were adopted:
- Design, construct, and place in working order a d-c electronic analog computer capable of solving 4th order linear differential equations with constant coefficients.
- Include in the design provisions for real time computation, and also fast, repetitive operation.
- Provide for later expansion of the computer installation.
- Limit expenditures to $700"--Introduction, page 4.
Effect Of Carbon Content In Steels Upon The Deposition Of Titanium From A Fused Salt Bath, Reinhard Paul Abendroth
Effect Of Carbon Content In Steels Upon The Deposition Of Titanium From A Fused Salt Bath, Reinhard Paul Abendroth
Masters Theses
"STATEMENT OF PROBLEM Previous work done at the Missouri School of Mines and Metallurgy on the deposition of titanium upon various metals, especially iron and steel, bas shown that titanium can be deposited upon ingot iron and. low carbon steels with comparitive ease. Difficulty was encountered in attempts to deposit titanium upon steels of higher carbon content and upon cast irons.
For this reason, it was decided to investigate more thoroughly the relationship between the carbon content of various steels and the quality of titanium coatings deposited on these steels. Once this relationship had been established, a suitable theoretical explanation …
Heat Flow In A Two-Dimensional Steady-Flow System Without Radial Symmetry, George H. Parharoglu
Heat Flow In A Two-Dimensional Steady-Flow System Without Radial Symmetry, George H. Parharoglu
Masters Theses
"As the extent of the science of heat conduction depends on the multiplicity of the boundary conditions that can be applied to the basic differential equation, a particular case in which the use of one set boundary conditions for the development of the general equation for the temperature distribution as well as the the amount of heat flow in a steady-state, two-dimensional heat flow system with a source of heat plased at the center of or along the axis of a cylinder, and without radial symmetry has been the object of this problem. Radial symmetry means the variation of temperature …
Foraminifera Of The Type Section Of The Archusa Marl Of Mississippi (Eocene, Claiborne Group, Wautubbee Formation), Nathan Eugene Crockett
Foraminifera Of The Type Section Of The Archusa Marl Of Mississippi (Eocene, Claiborne Group, Wautubbee Formation), Nathan Eugene Crockett
Masters Theses
"The type locality of the Archusa marl member of the Wautubbee formation is situated south of Quitman, Clarke County, Mississippi. Stratigraphically, the unit falls within the middle Eocene Claiborne group, being roughly equivalent to the upper part of the Lisbon formation of Alabama and the lower part of the Cook Mountain. The marl falls within the Ostrea sellaefonnis zone and the zone of "Ceratobulimina eximia.” The type section consists of 48 feet of sandy marls, with a thin oyster bed near the middle.
The Archusa foraminifera fauna consists of 87 species and varieties, belonging to 49 genera and …
The Velocity Of Ultrasonics In Liquids, Mack A. Breazeale
The Velocity Of Ultrasonics In Liquids, Mack A. Breazeale
Masters Theses
"In acoustics the term ultrasonics is used to refer to those frequencies which are above the range of human hearing; that is, frequencies above approximately 20,000 cycles per second. Since the laws of sound which are valid for the audible range are also valid in the ultrasonic range and since the wave length of ultrasonics is much shorter than that of audible sound, ultrasonic has proved very valuable in the calculation of both the velocity and the absorption coefficient of sound in various media. This is especially notable in the case of liquids, where the velocity of sound is much …
Mechanism And Measurement Of First Stage Graphitization In White Cast Iron, David S. Gould
Mechanism And Measurement Of First Stage Graphitization In White Cast Iron, David S. Gould
Masters Theses
"The original object of this thesis was to ascertain if coercive force measurements could be used for the determination of degree of malleablization in malleable iron. Since first stage graphitization was involved, it was only natural that an interest in the mechanism of first stage graphitization developed. The investigation which resulted from this interest was done primarily for the edification of the author, however it was subsequently deemed of enough importance to be included in this thesis. For this reason the thesis may appear at times to deviate from the original objective"--Preface, page iii.
The Mineralogy Of The Grassy Creek And Saverton Formations, Dirk Pieter Van Duym
The Mineralogy Of The Grassy Creek And Saverton Formations, Dirk Pieter Van Duym
Masters Theses
"A study of the mineralogy of the Grassy Creek and Saverton formations of Northeast Missouri was undertaken to determine whether a division is justified, as proposed by some stratigraphers, of these argillaceous beds into two formations. The formations were sampled systematically at surface exposures on the northeast limb of the Lincoln Arch in the vicinity of Hannibal and Louisiana, Missouri. The samples were investigated mineralogically in the laboratory. Previous studies showed that the fossils of the Grassy Creek and Saverton beds were virtually identical. The present study demonstrates that the Grassy Creek and Saverton beds are too near alike in …
Determination Of The Thermal Conductivity Of Sodium Chloride At Elevated Temperatures, Harold Robert Weisbrod
Determination Of The Thermal Conductivity Of Sodium Chloride At Elevated Temperatures, Harold Robert Weisbrod
Masters Theses
"The purpose of this research is to investigate possible methods of determining the thermal conductivity of small poorly conducting samples at elevated temperatures, and, further, to assemble a suitable apparatus, followed by measurement of thermal conductivity of one or more cubic lattice samples.
Basic requirements of the apparatus are few. It is first required that the measurement of thermal conductivity be made over a considerable range temperature. It is also preferred that the basic apparatus be placed in a vacuum where undesirable heat flow by convection is eliminated and air corrodible samples are preserved.
The apparatus must use only the …
Tunnel Rehabilitation, Jay C. Dotson
Tunnel Rehabilitation, Jay C. Dotson
Masters Theses
"This paper is an outgrowth of research conducted at Missouri School of Mines and Metallurgy over a two year period. The purpose of the study is to assemble into one volume information that is pertinent to the rehabilitation of tunnels. Notwithstanding the voluminous size of the paper, much descriptive material necessarily has been omitted because of the far-reaching scope of tunneling practices and of the specialized fields therein. An extensive bibliography has been prepared to supplement the material that has been selected for presentation. Through consultation with tunnel men of all ranks, observations in the field, and an intensive search …
A Study Of Safety Education In Secondary-School Shops (Grades 7-12) In Southwestern Michigan, Wallace Frederick Fillingham
A Study Of Safety Education In Secondary-School Shops (Grades 7-12) In Southwestern Michigan, Wallace Frederick Fillingham
Masters Theses
Chapter 1
The Problem and Its Background
The purpose of this study is (1) to obtain information concerning the organization, administration, and teaching of safety in the secondary-school shops and (2) to offer recommendations to serve as guides to secondary-school administrators, teachers and teacher-training institutions in handling the problem of safety.
Educational Tours For High School Business Classes, Robert L. Sinclair
Educational Tours For High School Business Classes, Robert L. Sinclair
Masters Theses
No abstract provided.
The Effect Of Air-Entrainment On Concrete Containing Chert Gravel, Ali Erdogan Dinc
The Effect Of Air-Entrainment On Concrete Containing Chert Gravel, Ali Erdogan Dinc
Masters Theses
"The problem which the writer is analyzing in this paper has been suggested to him by Prof. Carlton of the Civil Engineering Department. It consists of two parts.
- 1. Bar-Run aggregate is to be obtained from Springcreek near Rolla. This material is to be screened and recombined to obtain the best gradation for highest strength concrete obtainable.
- Durability studies are to be made on the concrete resulting from best established mix by varying the amount of air entrainment compound (Vinsol Resin) to be added to the cement"--Introduction, page 1.
A Petrographic And Chemical Study Of The Bevier Coal Seam, Philip John Clarke
A Petrographic And Chemical Study Of The Bevier Coal Seam, Philip John Clarke
Masters Theses
"Samples of coal were taken at three inch intervals vertically down the Bevier seam at three localities in Macon and Randolph Counties. Channel samples were collected at the three localities. All samples were analyzed for ash content, total sulphur content, crucible swelling number, and volatile content. The channel samples were analyzed for "pyritic" sulphur, “sulphate" sulphur, and "organic" sulphur. Thin sections of the samples were used in an estimation of anthraxylon and attritus contents.
In all the samples studied, volatile content of the coal seemed to be related to the ash content and the sulphur content. Crucible swelling number also …
A.C. Circuit Interruption, Palmer L. Anthony Jr.
A.C. Circuit Interruption, Palmer L. Anthony Jr.
Masters Theses
"In the last few years the transmission voltages have increased tremendously. Along with the voltage increase came increased load carrying ability for the circuits. The first few links of a new 330 KV transmission system are now under construction in this country. Sweden is already operating a 380 KV line. It is expected to carry a load as high as 850,000 KW on a single circuit.
Interconnection between systems in adjoining areas is a practice to get further operating benefits. The benefits are - reduction of necessary reserve capacity, increased load diversity, and decreasing losses.
Both of these developments bring …
The Bloating Of Missouri's Shales, Peter Kurtz Jr.
The Bloating Of Missouri's Shales, Peter Kurtz Jr.
Masters Theses
"The first objective of this investigation was to determine which deposits of clays, shales, and loesses in Missouri are suitable for use in the production of lightweight aggregate by virtue of their expanding characteristics upon heating. The second objective was to determine, if possible, commercially feasible additions that will produce the bloating property in shales that do not naturally bloat.
There are two conditions which must be met in firing in order to bloat a clay or shale. First, a gas must be formed and evolved during firing. Second, enough glass of the proper viscosity must be formed to trap …
Runoff And Soil Moisture, John William Clark Jr.
Runoff And Soil Moisture, John William Clark Jr.
Masters Theses
"Hydrology is the science treating of water from the time it hits the earth until it leaves the earth. This never ending movement of water is called the "hydrologic cycle" and is best summarized graphically. The hydrologist is primarily concerned with rainfall, runoff and evaporation. One of the basic aims of the science is to compute the surface runoff from any rain on a given area. Surface runoff is here considered as that water which reaches the channels without penetrating the ground, plus subsurface storm flow. Subsurface storm flow is slower than surface runoff but faster than ground water flow. …
The Holding Strength Of Crimps On Tubes, Aydin Cansever
The Holding Strength Of Crimps On Tubes, Aydin Cansever
Masters Theses
"The object of this thesis is to determine by analytical means and laboratory tests the holding force of various crimp methods of fastening sheet metals and special tubing. The study is conducted with heat treated Aluminum alloy 24S.T3.
The problem of joining relatively thin walled tubing of high strength material or the application of a plug to such a tube has been investigated by many manufacturers, but the literature in this field is limited and still there are many cases where a better method may prove very useful. At the suggestion of Dr. Aaron J. Miles, the author decided to …
Plastic Deformation Of Rocks, Muhammed Abdul Waheb
Plastic Deformation Of Rocks, Muhammed Abdul Waheb
Masters Theses
"The purpose of this investigation is to search for a method by which the strength properties of a rock may be described.
For this purpose, an attempt has been made to find out some relationship by which the rooks may be classified or described. For the solution of problems of mine stability, the mechanical properties of a rock should be known, i.e., hardness, toughness and strength. It is difficult to make a study of some method of classification or description of a rock without knowledge of these properties.
With a view to achieve the solution of a general classification for …
A Study Of Immiscibility In The Carbonates From The Metamorphic Rocks Of Southeastern Vermont, Ralph D. Cotter
A Study Of Immiscibility In The Carbonates From The Metamorphic Rocks Of Southeastern Vermont, Ralph D. Cotter
Masters Theses
"This problem is an attempt to correlate grade of metamorphism (normally assumed to be temperature dependent) with the shape and dimensions of a solid miscibility gap. Such a correlation might permit mapping of a continuously variable function of metamorphism. The system, calcite and dolomite-ankerite, was chosen for study because of its relative simplicity. Samples of quartz-carbonate granulite were collected from the Waits River formation in southeastern Vermont through a range of metamorphic grades. Refractive index, "molecular" volume, manganese content, and density were determined for the carbonates of four of these samples. These values are plotted on a compositional diagram to …