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Articles 115021 - 115050 of 115628
Full-Text Articles in Entire DC Network
Test 303: Allis-Chalmers Model Wc (Distillate), Nebraska Tractor Test Lab
Test 303: Allis-Chalmers Model Wc (Distillate), 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 …
Preparation Of Thianthrene, Eugene Alton Talley
Preparation Of Thianthrene, Eugene Alton Talley
Master's Theses
This work was begun in an attempt to study further the preparation of thianthrene from 2-dichlorobenzene and alkali sulfides. g_-Dichlorobenzene is a liquid by-product in the preparation of its solid isomer, E-dichlorobenzene, which is used extensively for controlling moths and peach tree borers. The study of the preparation of thianthrene from the liquid isomer was undertaken because the preparation might develop into a possible use for the large quantities available.
Thianthrene might be made from 2-dibromo- and 2-diiodo-benzene but these are not as cheap or as easily obtained as the dichloro derivative and were not used in this study various …
Orthogonal Polynomials With Orthogonal Derivatives, M. S. Webster
Orthogonal Polynomials With Orthogonal Derivatives, M. S. Webster
Department of Mathematics: Faculty Publications
We are concerned with the following assertion:
THEOREM. If {φn(x)} and { φn’(x)} are orthogonal systems of polynomials, then {φn(x)} may be reduced to the classical polynomials of Jacobi, Laguerre, or Hermite by means of a linear transformation on x.
Test 302: Allis-Chalmers Model B, Nebraska Tractor Test Lab
Test 302: Allis-Chalmers Model B, 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 306: Massey-Harris Model "101" S, Nebraska Tractor Test Lab
Test 306: Massey-Harris Model "101" S, 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 310: M-M Twin City Model Uts (Gasoline), Nebraska Tractor Test Lab
Test 310: M-M Twin City Model Uts (Gasoline), 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 311: M-M Twin City Model Uts (Distillate), Nebraska Tractor Test Lab
Test 311: M-M Twin City Model Uts (Distillate), 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 315: International Tractractor Model Td-18 (Wide Tread), Nebraska Tractor Test Lab
Test 315: International Tractractor Model Td-18 (Wide Tread), 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 …
Oil And Gas Resources, Jackson County, Missouri, Joseph Robinson Clair
Oil And Gas Resources, Jackson County, Missouri, Joseph Robinson Clair
Masters Theses
"The oil and gas production in Jackson County, though rather small, is nevertheless of considerable economic importance. A portion of the county has been rather thoroughly developed but the remainder has had little prospecting. In order to aid further development in the region the Missouri Geological Survey engaged in the mapping of all the known wells in the county as a basis for preparing a structural contour map of the area. In addition, a member of the Survey staff is stationed permanently in Kansas City to give assistance to the operators in the region and to collect the logs of …
Test 296: Graham-Bradley Model 503.103, Nebraska Tractor Test Lab
Test 296: Graham-Bradley Model 503.103, 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 297: Mccormick-Deering Farmall Model F-14, Nebraska Tractor Test Lab
Test 297: Mccormick-Deering Farmall Model F-14, 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 298: Mccormick-Deering Tractractor Model Td-40, Nebraska Tractor Test Lab
Test 298: Mccormick-Deering Tractractor Model Td-40, 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 299: Fordson All-Around (Gasoline), Nebraska Tractor Test Lab
Test 299: Fordson All-Around (Gasoline), 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 304: Allis-Chalmers Model Wc (Gasoline), Nebraska Tractor Test Lab
Test 304: Allis-Chalmers Model Wc (Gasoline), 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 305: John Deere Model B, Nebraska Tractor Test Lab
Test 305: John Deere Model B, 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 307: Massey-Harris Model "101" R, Nebraska Tractor Test Lab
Test 307: Massey-Harris Model "101" R, 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 308: Case Model R, Nebraska Tractor Test Lab
Test 308: Case Model R, 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 309: Case Model L, Nebraska Tractor Test Lab
Test 309: Case Model L, 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 …
Geology And Ground-Water Resources Of South-Central Nebraska. With Special Reference To The Platte River Valley Between Chapman And Gothenburg, Alvin Leonard Lugn, L. K. Wenzel
Geology And Ground-Water Resources Of South-Central Nebraska. With Special Reference To The Platte River Valley Between Chapman And Gothenburg, Alvin Leonard Lugn, L. K. Wenzel
Department of Earth and Atmospheric Sciences: Faculty Publications
The investigation here reported, which covered a period of about 5 years, 1929 to 1933, was made for the purpose of determining the available supply of ground water in south-central Nebraska, the origin and discharge of the ground water, and the relation of the geologic and ground-water conditions in the Platte River Valley to the conditions occurring under the plains to the south. The area was found to be underlain by permeable Pleistocene and Tertiary sand .and gravel, much of which is saturated and yields relatively large quantities of water to wells. Except in a few isolated places the ground-water …
The Monadnock Volume 12, Number 1, December 1937, Clark University Geographical Society
The Monadnock Volume 12, Number 1, December 1937, Clark University Geographical Society
The Monadnock (Clark Geographical Society)
Volume 12, Issue 1 of The Monadnock. The Monadnock was the alumni magazine of the Clark University Geographical Society (1927-1985) (2014-present).
Remarkable West American Fossil, The Blue Lake Rhino, George F. Beck
Remarkable West American Fossil, The Blue Lake Rhino, George F. Beck
All Faculty Scholarship for the College of the Sciences
Bidding for acceptance as fact, and for its place in the sun of fame and notoriety, we come now to the newly discovered fossil rhino animal mold of Blue Lake in Grand Coulee, central Washington. Not that fossil rhinos are rare or that their abundance in the Tertiary of America has waited until the present for revelation, is this fossil important. The feature in the Blue Lake rhino which taxes our credulity is the existence of the thing in what unquestionably must pass as once liquid basaltic lava. That anything organic could pass through the terrific heat and pressure of …
Syntheses In The Thiophene Series, Alfred William Weitkamp
Syntheses In The Thiophene Series, Alfred William Weitkamp
Department of Chemistry: Dissertations, Theses, and Student Research
Summary
The Friedel-Crafts reaction has been used in the preparation of thiophene ketones, some of which were hitherto unknown. Certain limitations of the reaction have been noted.
The mercuration of thiophene ketones has been systematically investigated for the first time. Many new halogen derivatives of benzothienone have been synthesized. These were employed in the elucidation of the structure of a complex mercurial· derived from this ketone.
A new modification of an old reaction has been developed whereby benzothienone can be mercurated quickly and almost quantitatively. Interesting derivatives of this little known ketone have been synthesized. Chief among these are the …
Public Water Supplies Of New Mexico, Kenneth F. Priest
Public Water Supplies Of New Mexico, Kenneth F. Priest
Chemistry and Chemical Biology ETDs
Distribution of population in State. The estimated population for the State of New Mexico for the year 1930 was 423,300. A close observation of the population centers shows them to be scattered over a wide range of territory. The largest city, Albuquerque, has approximately 26,000 citizens. The next sites, according to the 1930 count, are three in number, Santa Fe, Roswell, and Clovis. The remaining population including rural districts do not number over eight thousand people.
Freestone County, Texas [Water Quality Survey Of Wells And Springs With Test Hole Data, 1936], Samuel F. Turner
Freestone County, Texas [Water Quality Survey Of Wells And Springs With Test Hole Data, 1936], Samuel F. Turner
United States Geological Survey: Water Reports and Publications
Introduction
The purpose of this survey was to obtain information concerning existing wells and springs and the quantity and quality of water they yield, and to put down test holes where additional information was needed.
This project was part of a statewide Works Progress Administration project known as a "Statewide Inventory of Water Wells," sponsored by the [Texas] State Board of Water Engineers. The Division of Ground Water of the United States Geological Survey cooperated in the technical direction of the project and the Bureau of Industrial Chemistry of the University of Texas furnished laboratory space and equipment and supervised …
The Monadnock Volume 11, Number 2, May 1937, Clark University Geographical Society
The Monadnock Volume 11, Number 2, May 1937, Clark University Geographical Society
The Monadnock (Clark Geographical Society)
Volume 11, Issue 2 of The Monadnock. The Monadnock was the alumni magazine of the Clark University Geographical Society (1927-1985) (2014-present).
A Study Of The Gelation Of Several Paraffins In Various Solutions, Joseph John Wocasek
A Study Of The Gelation Of Several Paraffins In Various Solutions, Joseph John Wocasek
Bachelors’ Theses
In the selection of various waxes for commercial use, it has long been the custom to depend solely upon melting-point for property determination. Thus, for example, all paraffin waxes which had a melting range between 50 and 65 degrees centigrade, were thought to have much the same properties and that any or the commercial paraffins of this range would therefore impart the same characteristics to the product in which they were to be used. But with increased use, these waxes have come under more careful observation and experimentation. Very little data has as yet been released for publication but already …
A Study Of The Equilibria Between Bentonite And The Various Replacing Agents In Alcoholic And Water Solutions, Joel E. Fletcher
A Study Of The Equilibria Between Bentonite And The Various Replacing Agents In Alcoholic And Water Solutions, Joel E. Fletcher
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Investigators in soils have long recognized the importance of the colloidal fraction of soil, and also the almost inseparable problem of replaceable bases. It is generally accepted that the replaceable base fraction of a colloid controls to a large degree the physical properties exhibited by it. Volumes of work have been written on the problem of controlling the reactions of this fraction and on studies of the properties exhibited by it when it is saturated with various cations. Each worker has proceeded in his own individual way or followed the example set by some previous worker with specific modifications.
Fifty-First Annual Meeting Of The Iowa Academy Of Science And The Sixth Annual Convention Of The Junior Academy Of Science Of Iowa, April 16 And 17, 1937, Iowa Academy Of Science
Fifty-First Annual Meeting Of The Iowa Academy Of Science And The Sixth Annual Convention Of The Junior Academy Of Science Of Iowa, April 16 And 17, 1937, Iowa Academy Of Science
Iowa Academy of Science Documents
No abstract provided.
Educative Value And Construction Of Laboratory Equipment For Physics, With Emphasis On An Optical Screen, Warren D. Conrad
Educative Value And Construction Of Laboratory Equipment For Physics, With Emphasis On An Optical Screen, Warren D. Conrad
Bachelors’ Theses
In the preparation of this thesis the writer has constantly kept in mind three distinct purposes: a) to show the place and importance of the lecture-demonstration in the teaching of physics; b) to provide the teacher of physics in the small high school a means whereby he may equip a laboratory at the smallest possible cost; and c) to describe in detail the construction of an optical screen for purposes of demonstration, indicating what can be done. in the building of home-made physics apparatus.
Droughts, Dust Storms And Desolation, D. H. Davis
Droughts, Dust Storms And Desolation, D. H. Davis
Journal of the Minnesota Academy of Science
No abstract provided.