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Articles 289471 - 289500 of 292587
Full-Text Articles in Physical Sciences and Mathematics
Test 397: Allis-Chalmers Model Hd-19, Nebraska Tractor Test Lab
Test 397: Allis-Chalmers Model Hd-19, Nebraska Tractor Test Lab
Nebraska Tractor Tests
All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary. All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University. Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …
Test 400: Intercontinental Model C-26, Nebraska Tractor Test Lab
Test 400: Intercontinental Model C-26, Nebraska Tractor Test Lab
Nebraska Tractor Tests
All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.
All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.
Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …
Test 401: Masey-Harris Pony, Nebraska Tractor Test Lab
Test 401: Masey-Harris Pony, Nebraska Tractor Test Lab
Nebraska Tractor Tests
All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.
All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.
Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …
Test 403: Massey-Harris Model 22 Rt, Nebraska Tractor Test Lab
Test 403: Massey-Harris Model 22 Rt, Nebraska Tractor Test Lab
Nebraska Tractor Tests
All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.
All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.
Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …
Test 424: Silver King 3 Wheel Row Crop, Nebraska Tractor Test Lab
Test 424: Silver King 3 Wheel Row Crop, Nebraska Tractor Test Lab
Nebraska Tractor Tests
All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.
All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.
Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …
A Study Of The Prussian Blue Test For Nitrogen, Marilyn M. Erickson
A Study Of The Prussian Blue Test For Nitrogen, Marilyn M. Erickson
Bachelors’ Theses
The problem of obtaining good nitrogen tests on all types of organic compounds interested the author as a result of past experience in the identification of organic compounds.
The practical application of a positive solution to this problem would be an aid to the students of characterization of organic compounds. It is necessary for them to make an elementary analysis in order to determine the class into which the unknown compound belongs. A nitrogen test which will give definite results will eliminate any doubt as to the presence of nitrogen.
Preparation And Physical Properties Of Some Unsymmetrically Substituted Ethanes, William F. Buth
Preparation And Physical Properties Of Some Unsymmetrically Substituted Ethanes, William F. Buth
Bachelors’ Theses
Early in 1947, while investigating the potentialities of various compounds for use as liquid dielectric materials, A method was found for the preparation of unsymmetrical ditolyl ethane by a condensation method using sulfuric acid. This material was thought to have excellent dielectric characteristics so it was prepared and tested. The tests were favorable enough, to warrant further investigation into the field of the unsymmetrical ethanes. Being aware of the physical properties required for a good liquid dielectric; it was proposed to prepare a few of the related compounds for which no data was known to exist and to select those …
Review Of The Effects Of Ddt In The Blue Crab, Callinectes Sapidus, Willard A. Van Engel
Review Of The Effects Of Ddt In The Blue Crab, Callinectes Sapidus, Willard A. Van Engel
Reports
Notes on the usage and effects of DDT.
Dokümantasyon Anadolu'da Ladi̇ni̇en Ve Karni̇en Transgresyonu, K. Leuchs, M. Ati̇k
Dokümantasyon Anadolu'da Ladi̇ni̇en Ve Karni̇en Transgresyonu, K. Leuchs, M. Ati̇k
Bulletin of the Mineral Research and Exploration
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.
Microchemical Identification Of Amidone., Robert C. Watson
Microchemical Identification Of Amidone., Robert C. Watson
Electronic Theses and Dissertations
No abstract provided.
Some Reactions Of Chloro-Cyclo-Hexanone And Its Derivatives And The Synthesis Of 1 Chloro-2 Methyl Cyclo Hexene., Elle Bolt
Electronic Theses and Dissertations
No abstract provided.
Studies On The Natural History Of The Limpets Of The Family Acmaedae, Ferdinand Stanley Ruth
Studies On The Natural History Of The Limpets Of The Family Acmaedae, Ferdinand Stanley Ruth
University of the Pacific Theses and Dissertations
This thesis is a report of the findings of two years of part-time work on the limpets of the family Acmaedae. The major portion of the work was done on the Monterey Peninsula between Point Pines, 36° 38' 30" N. latitude, 121° 56' 00" W. longitude, and Pescadero Point 30° 33' 40" N. latitude, 121° 56' 30" W. longitude. The work on homing in Acmaea persona, artificial parthenogenesis in the eggs of Acmaea pelta, and artifical insemination of the eggs of Acmaea pelta was carried on at the Pacific Marine Station, Dillon Beach, California at 38° 14' 30" N. latitude, …
Petrology Of The Upper Marietta And Hundred Sandstones In Southeastern Ohio, Wayne Dudley Martin
Petrology Of The Upper Marietta And Hundred Sandstones In Southeastern Ohio, Wayne Dudley Martin
Graduate Theses, Dissertations, and Problem Reports
A petrographic study was made of two Lower Permian (Dunkard Series) sandstones in southeastern Ohio. The sandstone members with which the investigation was concerned are the Upper Marietta sandstone and the Hundred sandstone. The study was made in order to determine the origin of the sandstones and the practicability of applying geologic methods to the grindstone industry. The results of the study indicate that although some of the constituents of these sandstones were derived from igneous and sedimentary source rocks, a relatively large amount of material was derived from metamorphic rocks. The detritus was transported from the east and deposited …
Ground-Water Levels In The Lower Platte River Valley, Nebraska, H. A. Waite
Ground-Water Levels In The Lower Platte River Valley, Nebraska, H. A. Waite
Conservation and Survey Division
No abstract provided.
Progress Of Fundamental Survey In Nebraska, G. E. Condra
Progress Of Fundamental Survey In Nebraska, G. E. Condra
Conservation and Survey Division
No abstract provided.
A Phase Of The Upper Devonian Of Western Highland County, Virginia, Helen Pulver Foreman
A Phase Of The Upper Devonian Of Western Highland County, Virginia, Helen Pulver Foreman
Honors Papers
This paper is a study of the Brallier and Chemung formations of west Highland County, Virginia. The limits of the Brallier formation are determined on the basis ot faunal and lithological evidence, and correlations made with formations in New York, Pennsylvania, Maryland and West Virginia.
The field work was carried on during the latter part of the summer of 1947 and the identification and correlations worked out in the winter of 1947 and the spring of 1948.
A Textural Analysis Of The Bedford Shale Of Lorain County, Ohio, Troy James Laswell
A Textural Analysis Of The Bedford Shale Of Lorain County, Ohio, Troy James Laswell
Honors Papers
Throughout the course of the school year 1947-48 the writer has collected specimens of the Bedford shale from various localities within Lorain County, Ohio. Textural and mineralogical analyses have been made of the specimens in order to determine the textural and petrologic variation between the two facies, and whether each of the facies was deposited under similar conditions.
A Geological Report On South Boulder Canyon And The Mayflower Mine-Renova Areas, B. R. Alto
A Geological Report On South Boulder Canyon And The Mayflower Mine-Renova Areas, B. R. Alto
Bachelors Theses and Reports, 1928 - 1970
The purpose of this report is to serve as a written explanation of the accompanying geologic maps and columnar section. Each year the senior students in mining and geological engineering at the Montana School of Mines spend two weeks in the field where they learn the fundamentals of geologic mapping and related field studies. An additional week is spent at the school where maps are assembled, prints made, end other work is done in preparation for the writing of the report.
Odor Report (1947), Walter A. Lawrance
Press Reports (1947), Walter A. Lawrance
The Post-Kansan Geologic History Of The Lower Platte Valley Area, Gilbert Carl Lueninghoener
The Post-Kansan Geologic History Of The Lower Platte Valley Area, Gilbert Carl Lueninghoener
University Studies (University of Nebraska): Papers
This investigation is essentially a geomorphological study of the lower Platte River Valley area in eastern Nebraska. The area comprises Saunders, Dodge, Washington, Douglas, Sarpy, and Cass counties. The area defined above is one of the most critically located of any for the study of the post-Kansan history of the lower Platte River Valley. It lies between the older till (Nebraskan and Kansan) borders to the west and the younger till (Illinoian, Iowan, and Wisconsin) borders to the east. Physiographic changes have therefore transpired in a strictly post-Kansan periglacial region. The Kansan till is the youngest in the area. The …
A Geological Report On Several Localities In The Northwestern Tobacco Root Mountains, Rudi Forhan
A Geological Report On Several Localities In The Northwestern Tobacco Root Mountains, Rudi Forhan
Bachelors Theses and Reports, 1928 - 1970
To better acquaint seniors in Geology and mining with actual field practice, the Montana School of Mines offer a course in Geologic Field Mapping, during the three weeks preceding the opening of the fall semester. The first two weeks are spent in actual field mapping of the geologic formations near Whitehall, Montana, while the third week is spent back on the campus compiling data and finishing maps started in the field.
Geology Of The Renova-Bone Basin And Mayflower Mine Areas, R. L. Burns
Geology Of The Renova-Bone Basin And Mayflower Mine Areas, R. L. Burns
Bachelors Theses and Reports, 1928 - 1970
This report has been compiled from the data collected during the September, 1947, geologic field trip of the Montana School of Mines. The trip, under the direction of Dr. E. S. Perry, consisted of two weeks of field mapping and observation near Whitehall, Montana, and one week at the Montana School of Mines preparing this report.
Mayflower, Renova Basin, And South Boulder Creek Areas, Howard Nickelson
Mayflower, Renova Basin, And South Boulder Creek Areas, Howard Nickelson
Bachelors Theses and Reports, 1928 - 1970
In Montana at the turn of the century a great many men sought the riches buried in the earth's crust. Prospectors fanning out from Butte and other early Montana mining areas located veins at the Mayflower, Renova, and Gold Hill areas.
Alkylaminoalkyl Esters Of 2-Thiophene Carboxylic And Furoic Acids, Henry Alouis Rutter Jr.
Alkylaminoalkyl Esters Of 2-Thiophene Carboxylic And Furoic Acids, Henry Alouis Rutter Jr.
Master's Theses
The association of local anesthetic activity with alkaninoalkyl ester of aromatic carbonyl acids has been well susbstantietes. Compounds obtained as varieties of the "anesthesiophoric" group are usually capable of some degree of local anesthetic activity.
Arithmetical Vocabulary : A Factor In Verbal Problem Solving In Sixth Grade Arithmetic, Ernest A. Hoopes
Arithmetical Vocabulary : A Factor In Verbal Problem Solving In Sixth Grade Arithmetic, Ernest A. Hoopes
Master's Theses
During the writer's experience of teaching in elementary and junior high schools in Kansas he had excellent opportunity through supervision and classroom teaching to note a more-than-ordinary difficulty experienced by most children in the subject of arithmetic. Not only was the dull student baffled by the subject but many times the average and good students were "lost" when certain problems were presented. The exceptional. troublesomeness of this subject led the writer to ponder on the possible cause or causes of incorrect problem solving. One thing was apparent from observation and this was that many children seemed to lack a readiness …
Alkylaminoalkyl Aryoxyacetates, William Kenneth Easley
Alkylaminoalkyl Aryoxyacetates, William Kenneth Easley
Master's Theses
Numerous inInvestigations into the preparation, properties, and effects plant growth substances have been carried out. It has been shown that phenoxyacetic acids, napthoxyacetic acids, esters, anides and salts of phenoxyacetic acids and certain substituted products of these acids are plant growth promoting substances.
It is the purpose ot this work to produce esters of phenoxyacetic and napthoxyacetic acids which contain a secondary amino group and as a result of their ability to form acid salts, such as hydrochlorides, water soluble compounds. These compounds would be readily applicable to plants in sprays.
A Device For Determining The Electrical Characteristics Of Common Industrial Electronic Tubes, Addison Dabney Campbell
A Device For Determining The Electrical Characteristics Of Common Industrial Electronic Tubes, Addison Dabney Campbell
Master's Theses
Many tube checkers designed for radio receiving tubes have been developed . Most of the devices for test ing these tubes do little more than check the emission of the cathode. This is usually accomplished by applying alternating voltage to the plate of the tube undergoing the test and reading the direct-current component of the plate current . In this case, the control grid bias volt age is usually set at a fixed value although sometimes facilities for varying the bias are provided. If the tube is of the multi-grid type, all the grids except the control grid are connected …
Geology And Mines Of The Upper Blackfoot Valley, Montana, Thomas K. Shea
Geology And Mines Of The Upper Blackfoot Valley, Montana, Thomas K. Shea
Bachelors Theses and Reports, 1928 - 1970
The purchase and continued operation of the Mike Horse mine in the Heddleston district, by the American Smelting and Refining Company, gives the Blackfoot Valley a renewed promise of a prosperous future in its role as a mining district. In the past, large amounts of placer gold were recovered from the gulches of the area, however, because of the transportation facilities, only the upper portions of a few lodes were exploited by the early miners.