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Articles 18301 - 18330 of 18341
Full-Text Articles in Entire DC Network
Conodonts From The Quadrant Shales Of Montana, Don R. Cubbage
Conodonts From The Quadrant Shales Of Montana, Don R. Cubbage
Bachelors Theses and Reports, 1928 - 1970
Conodonts have not been known to exist in Montana prior to the discovery of the specimens discussed and described in this paper. With this fact in mind, the author has endeavored to correlate the species of seven genera found in the Quadrant formation of Montana with similar micro-organisms from other North American areas.
The Effect Of Preservatives On The Inflammability Of Wood, Merton Ira Signer
The Effect Of Preservatives On The Inflammability Of Wood, Merton Ira Signer
Professional Degree Theses
"It is the purpose of this thesis to present some data on the fire-resistance and inflammability of wood, treated with preservatives commonly used for mine timber"--Object of Thesis, page 3.
A Study Of Montana Bentonite, William P. Ryan
A Study Of Montana Bentonite, William P. Ryan
Bachelors Theses and Reports, 1928 - 1970
Research has been undertaken both under Government and private auspices in an endeavor to develop uses for bentonite. Perhaps, the work done to date has had only in consideration the possible industrial importance of bentonite. No simple, quick methods for the determination of the properties or qualities of any particular bentonite have been developed.
In an attempt to establish whether or not there is a means of making rapid simple determinations of the quality of Montana bentonitic clays, and in particular, with regard to the uses to which the clays may be suited. The problem also involves a study of …
Playgrounds And Recreation Areas In Real Estate Subdivisions, Joseph L. Doyle
Playgrounds And Recreation Areas In Real Estate Subdivisions, Joseph L. Doyle
Bachelors’ Theses
With the coming of the machine age, the need of adequate playground and recreation areas in large cities is steadily increasing. During the past ten years, or more, congested cities have found it necessary to supply at any cost, playground and. recreation areas, for their people, who from year to year find that they have more and more leisure time at their disposal. In an unlimited number of instances the only way this could be secured was by buying valuable land, wrecking the buildings thereon, and thus provide open spaces for recreation at an enormous cost to the city. Had …
Piles And Pile Driving, Robert W. Van Houten
Piles And Pile Driving, Robert W. Van Houten
Theses
This thesis on the subject of "Piles and Pile Driving" has been written to fulfill one of the requirements for the granting of the degree of Civil Engineer by the Newark College of Engineering. The material contained in this thesis has been gleaned from many books, catalogs, magazines and from the author's own experience. Much still needs to be accomplished in the field of research but this can be done only through the cooperation of the companies who are engaged in this work and have the equipment necessary for making many tests under actual field conditions.
The author wishes to …
Fundamentals Of Bridge Design, Albert C. Kalmbach
Fundamentals Of Bridge Design, Albert C. Kalmbach
Bachelors’ Theses
Man's earliest communication followed: water routes. Our prehistoric ancestors, evidence shows, fashioned boats and rafts which enabled them to travel along the rivers, and later to sail the seas. Following history through the years we will find man always developing theater routes for transportation before other methods. The early colonies in our America were along the coastal rivers; the Ohio and Mississippi river valleys were first settled in the interior.
Ventilation At The Portovelo Mines, John Paul Harmon
Ventilation At The Portovelo Mines, John Paul Harmon
Professional Degree Theses
"This paper was written with two objects in view: (1) To describe in detail what has been done toward the ventilation of the main unit of the Portovelo mines and the results; (2) to give information that may be useful to anyone who may have to make a preliminary mine ventilation survey, with recommendations for the improvement of the existing system and finally the maintenance of the improved system"--page 1.
A Study Of The Plating Prohibitive Properties Of Various Separators, Bruno J. Pozorski
A Study Of The Plating Prohibitive Properties Of Various Separators, Bruno J. Pozorski
Bachelors’ Theses
The problem of this thesis is to study the plating prohibitive properties of the various materials commonly used in the manufacturing of separators, and to indicate which material would be most serviceable and feasible in a separator. At one time positives and negatives were kept not more than 0.25 inches apart, with the idea of reducing the intervening layers of electrolyte, and, therefore, the internal resistance of the cell, as much as possible. It was, however, found that the output could actually be increased by putting the plates at greater distances, the fact being that the larger bulk of solution …
Some Of The Difficulties Encountered In The Construction Of A Highway Subway Or Underpass, Lawrence Halley Sanderson
Some Of The Difficulties Encountered In The Construction Of A Highway Subway Or Underpass, Lawrence Halley Sanderson
Professional Degree Theses
"The project from which the subject for this work is taken is located in Section 28, T 13 N, R 11 W, of the third P. M., Scott County, Illinois, within the village limits of Manchester, in the north east part of the town. (Sheet No. 1 of accompanying plans) It is a grade separation between the Chicago and Alton Railway and Route No. 3 of the Illinois system of Highways"--Page 6.
Japan, Van Hoose Smith
Japan, Van Hoose Smith
Professional Degree Theses
"This ore is mined from a quartz vein which is refined by small seams of graphitic clay material, and the walls of the vein consist of a sort of graphitic shaley material. The above graphitic materials break down under treatment into a rather peculiar clay which was called primary colloidal slime. The milling process in use consists of stamp milling followed by the separation into sand and primary slime in Dorr Duplex Classifiers. The primary slime overflow from these classifiers, which is all practically thru 220 mesh, is thickened and treated by flotation. Normally and with a good supply of …
The Transmission Of Pressure In The Dry Pressing Of Typical Building Brick And Fire Brick Mixes As Affected By The Variation In Grog Size, Stanley John Tompach
The Transmission Of Pressure In The Dry Pressing Of Typical Building Brick And Fire Brick Mixes As Affected By The Variation In Grog Size, Stanley John Tompach
Bachelors Theses
"In the formation of dry pressed ware, the transmission of pressure is of vital importance to the quality and character of the finished product as regards the resistance to spalling, load at high temperatures, slag action, abrasion and other physical properties. Furthermore, the transmission of pressure is a limiting factor as regards the size and irregularity of shape of a product manufactured by the dry press process. Prior to the time of this investigation several companies have succeeded in producing ware up to six (6) inches in depth; but an increase over six inches has resulted, in every case, in …
Some Early Geologists And Their Work In Montana, John E. Blixt
Some Early Geologists And Their Work In Montana, John E. Blixt
Bachelors Theses and Reports, 1928 - 1970
This paper marks an increased refinement and more detailed accuracy in the description of the geological features of the state. It includes the recent studies of mineral deposits, of oil structures, of the formations of bedded rocks and their included fossils, carried on both by the Federal and State governments and by various interested private persons, such as the mining companies. It is within this period that the Federal Government encouraged the U. S. Geological Survey in the publication of monographs on the National Parks, papers of great popular interest and educational value making these beautiful regions comprehensible in their …
Longface And Longwall Mining Methods Being Tried In Oklahoma Coal Fields, Earl Hollinger Mcalpine
Longface And Longwall Mining Methods Being Tried In Oklahoma Coal Fields, Earl Hollinger Mcalpine
Professional Degree Theses
"Of a number of long wall and long face mining methods in use in Oklahoma mines at this time, I shall outline four in this paper. Two of these methods are in use in mines which are comparatively level. The first of these is in the Kali-Inla mine near Hartshorne. The second is in the Milby-Dow Coal Company mine at Dow. The Mullen Coal Company mine near McAlester and the Hailey-Ola Company mine near Lutie are steep pitching mines"--page 1.
A Study On Concrete Roads, Joaquin H. Hernandez Barreneches
A Study On Concrete Roads, Joaquin H. Hernandez Barreneches
Bachelors’ Theses
There is hardly an institution in existence that is as old and as useful as the road. In fact, it is so old and we are so used to its usefulness that we seldom think of its origin or its history. We take them more or leas for granted.
A Study Of Concrete Roads, Joaquin H. Hernandez Barrenechea
A Study Of Concrete Roads, Joaquin H. Hernandez Barrenechea
Bachelors’ Theses
There is hardly an institution in existence that is as old and as useful as the road. In fact, it is so old and we are so used to its usefulness that we seldom think of its origin or its history. We take them more or lees for granted.
The Manufacture Of Cement In The State Of California, William Alonzo Mccanless
The Manufacture Of Cement In The State Of California, William Alonzo Mccanless
Professional Degree Theses
"In studying the subject of cementitious materials, from a structural standpoint, we find as we retrace our progress, that concrete as evolved, has always had the commanding position of superiority as a structural material, it now enjoys in all stages of man's civilization"--page 1.
An Investigation Of The Mechanics Of Oil Migration From The Source Beds To The Reservoir Beds, William Reed Quilliam
An Investigation Of The Mechanics Of Oil Migration From The Source Beds To The Reservoir Beds, William Reed Quilliam
Professional Degree Theses
"The study of the migration and accumulation of petroleum has very naturally been analytic, with the result that we have had a variety of studies of its several features. the generation of petroleum, its migration and its accumulation in reservoir rocks is not a rapid process which may be accomplished and terminated in a comparatively short time, but one of long and almost continuous operation from the time of its inception. In this study the author is not attempting to formulate a new theory for the movement of oil from its point of origin to its final point of accumulation …
Reglamento Para La Conservación Y Uso De Las Carreteras, República De Cuba. Senado.
Reglamento Para La Conservación Y Uso De Las Carreteras, República De Cuba. Senado.
Mario Diaz Cruz Pamphlets
At head of title: República de Cuba. Secretaría de Obras Públicas. Negociado de Caminos y Puentes.
A Study Of The Iodine Content Of Representative Missouri Waters, Edmond Carl Hunze
A Study Of The Iodine Content Of Representative Missouri Waters, Edmond Carl Hunze
Masters Theses
"Investigations have shown that the iodine content of natural waters bears a direct relationship to the goiter incidence of a given region. A number of the states have analysed [sic] their water for this constituent in the development of this hypothesis. A search of the literature revealed the fact that with the exception of two instances the iodine content of Missouri water had not been determined. Since in certain regions of Missouri there is quite a prevalence of goiter, it was deemed important to determine the iodine content of Missouri waters. It was believed that such information would be a …
A Water Supply System For A Small Mining Community, Paul Donovan Windsor
A Water Supply System For A Small Mining Community, Paul Donovan Windsor
Professional Degree Theses
"This thesis deals with the problems met in solving the water supply question for a small coal mining community in southern Illinois. It will contain a brief general treatise on modern water purification with a discussion of the various methods and steps in modern practice, a set of drawings and specifications for a water supply system for this community together with an explanation of them"--Introduction, page 4.
The Water Works System Of The City Of Trinidad, Colorado, John Ludwig Gustav Lehman
The Water Works System Of The City Of Trinidad, Colorado, John Ludwig Gustav Lehman
Professional Degree Theses
"The Trinidad Water Works is a municipal owned public utility operated by the city under the jurisdiction and regulation of the Public Utilities Commission of the State of Colorado. The plant is operated by gravity and without filtration. Estimated value of plant $5,000,000.00. for convenience the subject of this thesis will be divided into sections, namely: Collection, Storage, Purification and Distribution. No distinct lines will be drawn between the divisions however, each being treated without particular regard one to the other"--page 2.
Oil And Gas Report On North Louisiana And South Arkansas. Part One. Oil And Gas Fields Of North Louisiana And South Arkansas. Part Two. Probability Of Future Production North Louisiana And South Arkansas, Frederick Pine Shayes
Oil And Gas Report On North Louisiana And South Arkansas. Part One. Oil And Gas Fields Of North Louisiana And South Arkansas. Part Two. Probability Of Future Production North Louisiana And South Arkansas, Frederick Pine Shayes
Professional Degree Theses
"The purpose of this report is to furnish a general outline of the oil and gas fields of South Arkansas and North Louisiana. To properly cover the subject, the report is divided into two major parts, the first part dealing with the present and past producing territory, and the second part with probable future producing territory"--Introduction, page 1.
A Method Of Snow Surveying And Its Application To Forecasting Stream Flow, Leslie Bowen
A Method Of Snow Surveying And Its Application To Forecasting Stream Flow, Leslie Bowen
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The value of knowing ahead of time the amount of water to be expected from any given stream before the season is to far spent is a valuable asset.
Hog Houses For Nebraska, O. W. Sjogren, I. D. Wood
Hog Houses For Nebraska, O. W. Sjogren, I. D. Wood
Nebraska Agricultural Experiment Station: Historical Circulars
The material contained in this bulletin is a culmination of several years' study and investigation of the different types of hog houses used in Nebraska. It is realized that the plans given will not suit all conditions that may arise, but an effort has been made to bring out the essential factors so that the plans may serve as a guide in planning a house suited to particular conditions.
Data On Edible Vegetable Oil Processes, John Charavelle Ingram
Data On Edible Vegetable Oil Processes, John Charavelle Ingram
Professional Degree Theses
"The term American Edible Vegetable Oils includes only four distinct oils and under certain economic conditions perhaps a fifth. All these oils are to a certain extent interchangeable in their uses, their employment in specific commodities depending largely on their relative price. Listing them in the order of their economic importance, their principal usages are given in the following paragraphs"--Introduction, page 1.
Economic Geology Of Northern Angola, Artileus Vosteen Eulich
Economic Geology Of Northern Angola, Artileus Vosteen Eulich
Professional Degree Theses
"Most of the mineral deposits have been known to exist for over a generation but efforts to mine them usually met with failure. The most signal discovery, that of diamonds, was made only in recent years. They are the only substance coming under the category of mineral which are being exploited on a large scale. Energetic efforts are being made to find petroleum in commercial quantities. There are still vast areas practically unexplored which if thoroughly prospected might lead to more discoveries. It is difficulty, however, for one who has prospected for two years in Angola without any particular success …
Rammed Earth Walls For Buildings, U.S. Department Of Agriculture
Rammed Earth Walls For Buildings, U.S. Department Of Agriculture
Rammed Earth Collection (1923 - 1959)
Earth has been used for building dwellings from time immemorial. One method of use, superior to others, and which was known to the Romans has been preserved by tradition .t o modern times. This method consists of ramming slightly moist, specially selected earth, without the addition of straw or other material, between movable forms, and is known by itsFrench name, " pise de terre," which means "rammed earth." Pise de terre is a reliable building material when properly handled and is admirably adapted to structures on farms distant from transport routes. Little information has been published on rammed earth in …
Hog Houses For Nebraska, O. W. Sjogren, I. D. Wood
Hog Houses For Nebraska, O. W. Sjogren, I. D. Wood
Nebraska Agricultural Experiment Station: Historical Circulars
The material contained in this bulletin is a culmination of several years' study and investigation of the different types of hog houses used in Nebraska. It is realized that the plans given will not suit all conditions that may arise, but an effort has been made to bring out the essential factors so that the plans may serve as a guide in planning a house suited to particular conditions.
Measuring Silage And Capacity Of Silos, L. W. Chase
Measuring Silage And Capacity Of Silos, L. W. Chase
Nebraska Agricultural Experiment Station: Historical Circulars
The condition of the corn at filling time, the rate of filling, and the length of time settling has taken place before measuring the depth of the silage, all tend to cause variations in the weight per cubic foot of the silage and in the tonnage that can be placed in a silo. The greatest variation comes when very green corn or very ripe corn is used, and because of this it is possible that a cubic foot of green silage, which may weigh fifty pounds, holds no more dry matter than a cubic foot of overripe silage which weighs …
Underground Haulage, T. Roderick Noon
Underground Haulage, T. Roderick Noon
Bachelors’ Theses
The object of this discussion is to determine which would be the most economical and efficient of two forms of haulage, namely, mule and storage battery locomotive, based upon an output of four hundred and fifty tons of cleancoal per day, of eight hours.