Open Access. Powered by Scholars. Published by Universities.®

Physical Sciences and Mathematics Commons™

Open Access. Powered by Scholars. Published by Universities.®

Discipline
Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 291841 - 291870 of 294558

Full-Text Articles in Physical Sciences and Mathematics

Nyssa Woods Of The Pacific-Northwest Tertiary, George F. Beck Feb 1945

Nyssa Woods Of The Pacific-Northwest Tertiary, George F. Beck

All Faculty Scholarship for the College of the Sciences

The nyssa gums are one of the modern genera of trees most certainly present among the petrified woods and forests of the Pacific Northwest. Almost every collection from the mid-Tertiary of this region contains a few specimens of typical tupelo or sour gum. These are fine-grained woods which to the unaided eye may be mistaken for conifers.


Comparison Of Census Methods For Pheasants In Nebraska, H. Elliot Mcclure Jan 1945

Comparison Of Census Methods For Pheasants In Nebraska, H. Elliot Mcclure

Nebraska Game and Parks Commission: Staff Research Publications

In plans for the Nebraska Upland Game Bird Pittman Robinson Project the censusing of pheasants and tabulation of population densities was of prime importance. A summary of the data at hand and a comparison of the various methods tried will be discussed here.


Occupational Chemical Hazards In Industries Of Louisville And Jefferson County., Morgan Brown Lewman Jan 1945

Occupational Chemical Hazards In Industries Of Louisville And Jefferson County., Morgan Brown Lewman

Electronic Theses and Dissertations

The facts and conclusions presented in the following pages are the results of figures gathered during two and one half years of work as an Industrial Hygiene Engineer for the Louisville and Jefferson County Health Department. The factual information was acquired from many sources including extensive reading to which reference is made of the more recent publications in the bibliography and also from correspondence and discussions with authorities in various fields. Much data was gained from "in-service training" received at the United States Public Health Service; Bureau of Industrial Hygiene, Bethesda, Maryland; University of Michigan; National Conference of Governmental Industrial …


Land And Water Conservation Problems Of The Missouri River Basin, G. E. Condra Jan 1945

Land And Water Conservation Problems Of The Missouri River Basin, G. E. Condra

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Advertising Brochure: Case S Series, Nebraska Tractor Test Lab Jan 1945

Advertising Brochure: Case S Series, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.


The Cleavage Of Cyclo-Beta-Diketones. I. Tetramethyl-1,3-Cyclobutanedione. Ii. Tetraphenyl-1,3-Cyclobutanedione., Garry Carlton Kitchens Jan 1945

The Cleavage Of Cyclo-Beta-Diketones. I. Tetramethyl-1,3-Cyclobutanedione. Ii. Tetraphenyl-1,3-Cyclobutanedione., Garry Carlton Kitchens

LSU Historical Dissertations and Theses

No abstract provided.


The Yale Forest In Tolland And Windham Counties, Connecticut, Walter H. Meyer, Basil A. Plusnin Jan 1945

The Yale Forest In Tolland And Windham Counties, Connecticut, Walter H. Meyer, Basil A. Plusnin

Yale School of the Environment Bulletin Series

No abstract provided.


Ground Water In The Republican River Basin In Nebraska-Part Iii: Red Willow And Frontier Counties, H.A. Waite, E.C. Reed, D.S. Jones Jr. Jan 1945

Ground Water In The Republican River Basin In Nebraska-Part Iii: Red Willow And Frontier Counties, H.A. Waite, E.C. Reed, D.S. Jones Jr.

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


A Study Of Factors Influencing The Hydrolysis Of Corn Amylopectin By Barley Malt Enzymes., Thelma Munsey Back 1918-2006 Jan 1945

A Study Of Factors Influencing The Hydrolysis Of Corn Amylopectin By Barley Malt Enzymes., Thelma Munsey Back 1918-2006

Electronic Theses and Dissertations

No abstract provided.


The Monadnock Volume 19, Number 1, December 1944, Clark University Geographical Society Dec 1944

The Monadnock Volume 19, Number 1, December 1944, Clark University Geographical Society

The Monadnock (Clark Geographical Society)

Volume 19, Issue 1 of The Monadnock. The Monadnock was the alumni magazine of the Clark University Geographical Society (1927-1985) (2014-present).


Groundwater Survey Of Area North Of O'Neill, Holt County, Nebraska, E. C. Reed Dec 1944

Groundwater Survey Of Area North Of O'Neill, Holt County, Nebraska, E. C. Reed

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Ancient Maples Of The Central Washington Region, George F. Beck Nov 1944

Ancient Maples Of The Central Washington Region, George F. Beck

All Faculty Scholarship for the College of the Sciences

When I began work on the petrified logs of the general Vantage area some 13 years ago, it became apparent at once that maple-like woods are commonplace in the main (Vantage) raft forest and slightly less abundant in two rooted units of the Yakima Canyon. So widely do these woods range throughout the structural variations found in modern maples that little success has attended the efforts to assign them to nominal species. The extremes can readily be established but few hints exist as to the boundaries between them.


An Investigation Of The Nature Of The Coefficients Of Entire Function, Marie Ann Philips Oct 1944

An Investigation Of The Nature Of The Coefficients Of Entire Function, Marie Ann Philips

Mathematics & Statistics ETDs

The purpose of this study is to investigate the nature of the coefficients of certain power series. In particular, it is desired to know what characteristics the coefficients must possess in order that the series shall represent an entire function.


The Solubility Of Zinc Ethyl Xanthate In Water, Thomas M. Mckenzie Oct 1944

The Solubility Of Zinc Ethyl Xanthate In Water, Thomas M. Mckenzie

Bachelors Theses and Reports, 1928 - 1970

A determination of the solubility of zinc ethyl xanthate was attempted by measuring the refractive index of a saturated solution of that salt. The small increment in refractive index effected by adding zinc ethyl xanthate to water in saturation quantities rendered measurements difficult and of dubious accuracy.


Hydrogen Overvoltage Of Cadmium Bismuth And Antimony Bismuth Alloys, Edwin W. Stevens Oct 1944

Hydrogen Overvoltage Of Cadmium Bismuth And Antimony Bismuth Alloys, Edwin W. Stevens

Bachelors Theses and Reports, 1928 - 1970

A method to measure hydrogen overvoltage was devel­oped and checked with metals of known overvoltage. Alloys of bismuth and antimony and of bismuth and cad­mium were prepared and their overvoltages determined.


The Electrodeposition Of Copper-Cobalt Alloys, Richard L. Dunn Oct 1944

The Electrodeposition Of Copper-Cobalt Alloys, Richard L. Dunn

Bachelors Theses and Reports, 1928 - 1970

An attempt was made to deposit a 50:50 copper-cobalt alloy from various sulfate electrolytes. No true 50:50 alloy was obtained but various mixtures of cobalt and copper rich crystals were deposited.


Press Reports (1944), Walter A. Lawrance Sep 1944

Press Reports (1944), Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.


Odor Report (1944), Walter A. Lawrance Sep 1944

Odor Report (1944), Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.


Synthesis Of Dyes, Faith B. Cramer Sep 1944

Synthesis Of Dyes, Faith B. Cramer

Chemistry Honors Papers

This 14 page thesis examines the classification and preparation of dyes.


Calcium And Phosphorus Content Of Grasses At Different Stages Of Growth, G.F. Gastler, A.L. Moxon Jul 1944

Calcium And Phosphorus Content Of Grasses At Different Stages Of Growth, G.F. Gastler, A.L. Moxon

Agricultural Experiment Station Chemistry Pamphlets (1943-1944)

The attached tables and graph show the calcium and phosphorus content of Western Wheat grass {Agropyron smithii) and Blue Grama grass (Bouteloua, gracilis) at different stages of growth. The percentages are calculated on an air dr-/ basis which would be comparable with the moisture content of very dry hay. Tne values, therefore, represent the approximate calcium and phosphorus levels in hay made from these grasses ~f they are cut at the stages indicated in the graph and tables.


Subject And Author Index Of The Technical Memorandums Of The U. S. National Advisory Committee For Aeronautics, Chrysler Engineering Library, Robert L. Bolin Depositor Jul 1944

Subject And Author Index Of The Technical Memorandums Of The U. S. National Advisory Committee For Aeronautics, Chrysler Engineering Library, Robert L. Bolin Depositor

United States National Aeronautics and Space Administration: Publications

The National Advisory Committee for Aeronautics (NACA) is a federal agency founded in 1915. It was a predecessor agency to National Aeronautics and Space Administration (NASA) which was formed in 1958.

Many of the reports listed here are available in full text through the TRAIL Technical Report Archive & Image Library. http://www.technicalreports.org/trail/search/ Many are also available from the NASA Technical Reports Server (NTRS). http://ntrs.nasa.gov/search.jsp

121 pp. + cover


Terminology Relating To The Occurrence, Behavior And Use Of Water In Nebraska, G. E. Condra Jun 1944

Terminology Relating To The Occurrence, Behavior And Use Of Water In Nebraska, G. E. Condra

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


The Monadnock Volume 18, Number 1, May 1944, Clark University Geographical Society May 1944

The Monadnock Volume 18, Number 1, May 1944, Clark University Geographical Society

The Monadnock (Clark Geographical Society)

Volume 18, Issue 1 of The Monadnock. The Monadnock was the alumni magazine of the Clark University Geographical Society (1927-1985) (2014-present).


A Study Of Some Dehydrating And Infiltrating Agents, Monica Hoefs May 1944

A Study Of Some Dehydrating And Infiltrating Agents, Monica Hoefs

Bachelors’ Theses

The ethyl-alcohol-xylol series produces a hardening and shrinking of the tissues. It has long been criticized for this reason.


Corona Discharge From Antenna Wire: A First Partial Report, Robert Katz May 1944

Corona Discharge From Antenna Wire: A First Partial Report, Robert Katz

Robert Katz Publications

Purpose: 1. To examine the conditions for corona at the surface of a wire. This report is a theoretical discussion. No test procedure was used.

Conclusions:
1. Calculation of the gradient at the surface of the fixed-wire liaison antenna (bare copperweld, .040" diameter) on the B-17 airplane indicates that it is of the order of 200 times the gradient measured at the top generating voltmeter.
2. Further work will be done by the Special Devices Branch in an attempt to determine the conditions under which insulated wire goes into corona.


The Fifty-Seventh Session Of The Iowa Academy Of Science, April 15, 1944, Iowa Academy Of Science Apr 1944

The Fifty-Seventh Session Of The Iowa Academy Of Science, April 15, 1944, Iowa Academy Of Science

Iowa Academy of Science Documents

No abstract provided.


Two Newly Discovered Conifers, George F. Beck Apr 1944

Two Newly Discovered Conifers, George F. Beck

All Faculty Scholarship for the College of the Sciences

Two genera of coniferous wood, apparently not listed among the Tertiary woods of the western states, have been recognized in the Percy Train collections from Rainbow Ridge, northwestern Nevada. These two, Tsuga (hemlock) and Chamaecyparis (cedar) bring up to 14 the genera of coniferous wood more or less certainly identified from the period and area in question.


Status Of Tertiary Woods Of The Western States Representing The Juglandaceae, George F. Beck Apr 1944

Status Of Tertiary Woods Of The Western States Representing The Juglandaceae, George F. Beck

All Faculty Scholarship for the College of the Sciences

For many years there has been uncertainty concerning the generic status of some fossil leaves belonging without question to the walnut family as a whole. A review of the woods of Juglandaceae as they have appeared in Tertiary horizons of the western states has suggested which genera are present, and in what proportions their leaves (or other remains) might be expected to appear.


Drought, Its Effects And Measures Of Control In Nebraska, G. E. Condra Apr 1944

Drought, Its Effects And Measures Of Control In Nebraska, G. E. Condra

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Fluorite Near Silver Bow, Montana, Charles V. Campbell Feb 1944

Fluorite Near Silver Bow, Montana, Charles V. Campbell

Bachelors Theses and Reports, 1928 - 1970

The wartime demand for fluorspar has caused renewed interest in fluorite deposits. Near Silver Bow, Montana, a deposit of massive, coarsely crystalline fluorspar, which has not been described in the literature, has attracted the atten­tion of the United States Geological Survey.