Engineering Commons^™

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.

Aircraft In Agriculture, N. E. Shafer, J. D. Furrer, J. W. Lomax

Nebraska Agricultural Experiment Station: Historical Circulars

Airplanes were first used in agriculture shortly after the close of World War I. They proved valuable for locating mosquito breeding areas, for forest fire patrol work, as an aid in locating outlaw cotton fields in the campaign against pink bollworm, and for surveying damage caused in large forested areas by the spruce budworm.

B.P.R. Project On Correlation Of Truck Traffic And Pavement Conditions, Kentucky Highway Materials Research Laboratory

Kentucky Transportation Center Research Report

Locations for the Test Sections within the Control Sections and as close as possible to the Loadometer Stations established by the Division of Planning have been selected and are described in this report. With but one or two exceptions, there is reasonable certainty that these sections of pavement can be kept in service without major changes for a period of five years. However, there are repairs that should be made on the pavements in two of the sections in order to prevent rapid deterioration that is likely to occur if these are not corrected at the beginning of the study.

Test 448: John Deere Mc, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT: John Deere MC TEST A: The manufacturer's representative operates the tractor for a minimum of 12 hours using light to heavy drawbar loads in each gear. This serves as a period for limber up, general observation and adjustments. Adjustments that are permissible include valve tappet clearance, breaker ,point gap, spark plug gaps, clutch and others of a similar nature. No new parts or accessories can be installed without having mention made of it in the report. No data' are recorded during this preliminary run except the time that the engine is operated. BELT HORSEPOWER TESTS TEST …

News Bulletin - July-August, 1950, Civil Aviation Medical Association

Browse all Civil Aviation Medical Association Newsletters

A three page newsletter of the Airline Medical Examiners Association which was published on an irregular basis from 1950-1957. This organization was a predecessor of the Civil Aviation Medical Association. The newsletter provided news about civil aviation medicine and information related to the organization.

A Guide To The Collection Of Technical Intelligence, Part I, July 1950, Department Of The Army, Assistant Chief Of Staff, Robert Bolin , Depositor

United States Department of Defense Military Intelligence

This is a detailed, well-illustrated guide showing the range of weapons and equipment army technical intelligence was interested in, including:

• Armored vehicles
• Artillery
• Infantry small arms
• Mortars, antitank weapons, and grenades
• Mines, booby traps, and demolitions
• Ammunition
• Artillery rockets and rocket launchers

Notable lapses in this booklet are:

(a) Lack of guidance for using the booklet and

(b) The lack of mention of:

• Radio and electronic equipment
• Chemical, biological, and radiological warfare equipment
• Bridge and stream-crossing equipment
• Construction equipment
• Trucks and other transportation equipment
• Quartermaster type equipment
• Specialized equipment for Arctic warfare.

When this booklet was published, the technical intelligence …

Test 447: International Td-24, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Czarina Mine, Butte, Montana, Prodyot K. Das

Bachelors Theses and Reports, 1928 - 1970

The Czarina mine operated for a short time during the last Great War, lies in the southwestern corner of the Butte mining district of Montana. This area was worked during the extensive silver mining in Butte during the 1890's, and was prospected from time to time in later years. The orebody of the mine consists of fissure fillings of manganese mineral oxidized to a certain depth, in a fracture zone of the Boulder Batholith.

Test 446: International Td-18a, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 445: International Td-14a, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 444: Ford 8nan, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 443: Ford 8n, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 442: Cockshutt 40, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Mineralization Of The Bonanza Mine, H. M. Callaway

Bachelors Theses and Reports, 1928 - 1970

The Bonanza mine of the Emery mining district in Powell County is on the largest veins in the area, and is developed to a depth of 680 feet by an incline shaft following the dip of the structure. Sulfide ores carrying gold and silver values are mined throughout the area which is easily accessible by road from Deerlodge, Montana, ten miles west of the district.

Montana Talc; Problems In Physical Properties, E. C. Armstrong

Bachelors Theses and Reports, 1928 - 1970

General information on talc, including foreign and United States occurrences, origin, and uses is covered. Montana deposits are discussed in greater detail as to location, geology, mineralogy, and mining. Studies of talc by petrographic and x-ray methods and an experiment to determine the porosity are described and discussed.

Importance Of Unconformities To Oil Occurrence In Montana, Robert E. Evenson

Bachelors Theses and Reports, 1928 - 1970

Although the majority of geologic structures in Montana have been tested in the search for petroleum, only a few have been found to contain commercial quantities of either oil or gas, and with each successive dry hole, producers are becoming more and more wary of investing capital in new wells located on structural features alone. It is apparent that if new oil and gas fields are to be found in Montana, exploration must be done on the basis of some­thing other than structure, or combined with structure.

Fauna Of The Pilgrim Formation Of The South Boulder Creek Area In Southwestern Montana, John T. Eastlick

Bachelors Theses and Reports, 1928 - 1970

This paper, a study of the fauna of the Pilgrim formation at South Boulder Creek in southwestern Montana, represents a laboratory study of the fossil specimens collected by Dr. Alvin Hanson during the summer of 1949. The scope of investigation includes identification and classification of the faunas, their stratigraphic relationship and zonal subdivisions.

Foraminifera From The Colorado Shale Near Sunburst, Montana, Frank R. Reynolds

Bachelors Theses and Reports, 1928 - 1970

One of the many secrets which planet Earth has jealously kept from its inhabitants is the microscopic fossil form known as the foraminifer. It hides in common shale, awaiting the patient and painstaking searcher. In furthering the study of the foraminifera of the Colorado group of for­mations in Northern Montana_, the United States Geological Survey has collected several suites of shale samples from the Sunburst Dome, five to ten miles south of the Canadian border and twenty-five miles north of the city of Shelby, Montana_.

A Study Of The Effect Of The Maximum Melt Temperatures Upon The Degree Of Supercooling Of Gallium, Wilfred E. Nagel

Bachelors Theses and Reports, 1928 - 1970

If, in a system at a giv­en temperature, there should occur a decrease in free energy and this decrease does not take place, then the resulting condition of the system is termed supercooling. A common example of the phenomenon is found in the liquid-to-solid transition of many substances, when the temperature of the liquid may be lowered below its freezing point without solidification. Similar phenomenon occurs in the gas-to- liquid, gas-to-solid, and polymorphic transformations.

Fauna And Stratigraphy Of The Meagher Formation At Three Localities In Southwestern Montana, William J. Van Matre

Bachelors Theses and Reports, 1928 - 1970

In the past 75 years, the scenic area about the head­waters of the great Missouri River has attracted the atten­tion of many leading stratigraphers and paleontologists; for in this area bountiful outcrops of Paleozoic fossil horizons are available for study and correlation.

Mottling In The Meagher Limestone, Ronald J. White

Bachelors Theses and Reports, 1928 - 1970

The middle Cambrian Meagher limestone of southwest Montana is characterized by mottled members that are finely crystalline in the tan part and microcrystalline in the dark matrix. As seen in the literature, similar mottled limestones are thought to be an arrest­ed stage in the dolomitization, or alteration of limestones.

A Study Of The Divide-Dewey Contact Of The Boulder Batholith, Francis M. Young

Bachelors Theses and Reports, 1928 - 1970

The batholith is dated as Paleocene or early Eocene. The rocks of the batholith in this area are classified as ranging from quartz-granodiorite to granodiorite. Variation in mineral content causes a chance in color tone from light to dark gray. swarms of inclusions occur in the igneous rock near the contact.

Foraminifera Of The Colorado Shale At Fort Benton, Montana, Robert E. Willson

Bachelors Theses and Reports, 1928 - 1970

Shale is known to be a source-bed for oil, and the Colorado shale which is over 2000 feet thick in places may well be the source for the oil which is now accumulated in the included or closely associated sandstones. A thorough study of the fossil content may not only be helpful in correlation of Cretaceous sediments, but it likewise may be the starting point for studies ^-which could eventually lead to the discovery of unknown mineral deposits.

Soft X-Rays, William F. Roherty

Bachelors’ Theses

Traditionally, radiation of those wavelengths produced by a potential of from 2 to 25kv. has been classified as "Grenz" or "soft" x-rays. The peculiar property of this radiation is its low penetrating power. While being transparent to more energetic radiation, animal tissue and similar materials are sufficiently opaque to Grenz rays as to be studied in detail. Since the radiation is of the continuous type, it can be made soft enough to reveal any object, providing, of course, that the tube window and object medium be not opaque. Soft x-rays are produced in exactly the same manner as others, except …

Test 441: Mccormick-Deering Wd-9, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

A Theoretical And Experimental Analysis Of Delay Circuits, Shuh-Tuh Tsai

Electrical and Computer Engineering ETDs

A delay circuit is a circuit which produces rectangular pulses of specified duration.

A rectangular pulse consists of three parts: first, a sudden rise of voltage; second, remaining a constant voltage during a certain time interval; and third, a sudden drop of voltage to its original value.

If the sudden rise of voltage at t, is produced by a certain sudden action of a circuit previous to the pulse circuit, the sudden drop of voltage at t₂ can cause another circuit to produce a sudden action. Thus, the second action is produced by the first action at a time …

An Experimental Investigation Of Multivibrators, Harry W. Gates

Electrical and Computer Engineering ETDs

The object of this study is two-fold. The first part of the investigation is concerned with substantiating experimentally the mathematical analysis for the conventional multi-vibrator and to derive similar expressions for the grid return multi-vibrator. The second purpose of this investigation is to delve into several possible ways of improving the linearity and thereby the frequency division usefulness of the multi-vibrator.