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Articles 287521 - 287550 of 292780
Full-Text Articles in Physical Sciences and Mathematics
Feldspatlarin Standardi̇zasyonu Ve Serami̇k Sanayi̇i̇ndeki̇ Ehemmi̇yeti̇, Raşit Tolun
Feldspatlarin Standardi̇zasyonu Ve Serami̇k Sanayi̇i̇ndeki̇ Ehemmi̇yeti̇, Raşit Tolun
Bulletin of the Mineral Research and Exploration
No abstract provided.
Some Permian Calcareous Algae From The Vicinity Of Ankara, Utarit Bi̇lgütay
Some Permian Calcareous Algae From The Vicinity Of Ankara, Utarit Bi̇lgütay
Bulletin of the Mineral Research and Exploration
No abstract provided.
Test 748: Zetor 50 Super (Diesel), Nebraska Tractor Test Lab
Test 748: Zetor 50 Super (Diesel), Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …
Geology Of The Hasanoğlan-Ankara Region, Utarit Bi̇lgütay
Geology Of The Hasanoğlan-Ankara Region, Utarit Bi̇lgütay
Bulletin of the Mineral Research and Exploration
No abstract provided.
Geology Of The Mut Region*, İbrahim Akarsu
Geology Of The Mut Region*, İbrahim Akarsu
Bulletin of the Mineral Research and Exploration
No abstract provided.
Vergleichende Stratigraphie Und Tektonik Der Lignitführenden Neogengebiete Westlich Und Nördlich Von Tavşanli *, Karl Nebert
Vergleichende Stratigraphie Und Tektonik Der Lignitführenden Neogengebiete Westlich Und Nördlich Von Tavşanli *, Karl Nebert
Bulletin of the Mineral Research and Exploration
No abstract provided.
Notice Explicative De La Carte Tectonique De Turquie Au 1/2 500 000e, İhsan Keti̇n
Notice Explicative De La Carte Tectonique De Turquie Au 1/2 500 000e, İhsan Keti̇n
Bulletin of the Mineral Research and Exploration
No abstract provided.
A Study Of The Curcumin Method For Boron Determination, James Edward Hardcastle
A Study Of The Curcumin Method For Boron Determination, James Edward Hardcastle
Master's Theses
The purpose of the research project, of which this thesis is a partial report, was two fold: first, to develop a method for determining small quantities of boron, and second, to develop a rapid field test for the determination of atmospheric boron. A literature survey revealed that the curcumin method is the most sensitive colorimetric method presently available for boron determination. Also, the curcumin paper test should be readily adapted to the determination of atmospheric boron.
Brief Account Of The Work Done By The Mineral Research And Exploration Institute Of Turkey (M. T. A.) During The Period 1935-1960, - -
Bulletin of the Mineral Research and Exploration
No abstract provided.
An Investigation Of Solvent Extraction Techniques In The Determination Of Formation Constants Of Complex Species In Aqueous Silver Chloride Solution, David Martin Bodily
An Investigation Of Solvent Extraction Techniques In The Determination Of Formation Constants Of Complex Species In Aqueous Silver Chloride Solution, David Martin Bodily
Theses and Dissertations
Solvent extraction techniques have been used to determine formation constants for molecular silver chloride and dichloro silver (I) ion in unsaturated aqueous solutions. Nitrobenzene was used to extract the molecular silver chloride from the aqueous silver chloride solution. The total concentration of silver in each phase was determined by radioassay techniques and related by an expression involving the equilibrium constants. The reciprocal of the distribution ratio times the activity of the chloride ion was plotted versus the activity of the chloride ion and portions of the curve were analyzed by the method of least squares to obtain values for the …
The Dilute Solution Chemistry Of Antimony, Kent H. Jones
The Dilute Solution Chemistry Of Antimony, Kent H. Jones
Chemistry and Chemical Biology ETDs
Investigation of the chemistry of the elements by conventional methods is generally limited to concentrations on the order of 10-5 M or higher. The discovery of radio-activity opened new fields in chemistry among which is the obtaining of information concerning chemical behavior of elements at very low concentrations. For many years after the initial discovery of radioactivity in 1896 by Becquerel, the study of low-concentration chemistry was limited to about ten naturally occurring radioactive elements. A renewed interest in this field was generated after 1934 when it was discovered by Curie and Joliot that radioactive elements could be artificially …
Test 746: Caterpiller D-4 (Diesel), Nebraska Tractor Test Lab
Test 746: Caterpiller D-4 (Diesel), Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …
Test 747: Caterpiller D-6 (Diesel), Nebraska Tractor Test Lab
Test 747: Caterpiller D-6 (Diesel), Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …
The Geology Of The Sequatchie Valley Overthrust Block, Sequatchie Valley, Tennessee, Robert Calvin Milici
The Geology Of The Sequatchie Valley Overthrust Block, Sequatchie Valley, Tennessee, Robert Calvin Milici
Doctoral Dissertations
Introduction: Abbreviated
The purpose of this investigation was twofold: (1) to decipher the nature of the thrust faulting of the anticline; and, (2) to study the stratigraphy of the Paleozoic formations of the Sequatchie Valley.
Potentiometric Titrations Of Metal Ions With Edta, Donald Theodore Carlson
Potentiometric Titrations Of Metal Ions With Edta, Donald Theodore Carlson
Honors Theses
Ethylenediaminetetracetic acid, known commonly as EDTA and commercially as Versene, Trilon B, Sequestrene, and Complexone II, III, and IV; was first produced in 1936 by the I.G. Farbenindustrie. EDTA reacts chemically as a ligand. That is, it forms a complex by occupying two or more coordination prositions of the atom it reacts with. The resulting complex is called a chelate, which stems from the Greek word for clas. EDTA acts as a sequestering agent by forming stable, water-soluble chelates with metal ions.
The Determination Of The Cross-Sectional Area Of A Stearic Acid Molecule, Michael Stacey Dryer
The Determination Of The Cross-Sectional Area Of A Stearic Acid Molecule, Michael Stacey Dryer
Honors Theses
The fundamental relationship determining the area per molecule is: A = SM/ (g/c x v x N) A = area per molecule. S = area occupied by the monolayer. M = molecular weight. g = grams of stearic acid in volume c. c = volume of solution. v = aliquot of c delivered to the surface. N = Avogadro’s Number. Each of the terms in the above equation will be discussed in detail below.
Further Studies On Zirconia Gels, James Emmons Anderson
Further Studies On Zirconia Gels, James Emmons Anderson
Honors Theses
When solutions of zirconium oxychloride and sodium acetate are mixed at room temperature (25°c.), a grey-white hydrogel of zirconia is formed. This gel structure gradually weakens on standing, and finally becomes a water-clear sol. Heating this sol to 6o°c. will form a similar gel, stable at this temperature, which will reliquefy on cooling to 25°c. The gelation-reliquefaction cycle can apparently be carried out indefinitely. Such behavior is in direct contrast to normal gelation. The so-called “irreversible gels”, such as those of silicic acid, show stability at all temperatures; while other “reversible gels”, such as common gelatin, set at lower temperatures …
Liquid-Vapor Equilibria In The System: Isopropyl Alcohol-Dibromomethane, John Henry Nickles
Liquid-Vapor Equilibria In The System: Isopropyl Alcohol-Dibromomethane, John Henry Nickles
Honors Theses
The purpose of this research project was to determine more closely the liquid vapor equilibrium curve and the boiling point and composition of the azeotrope formed in the system isopropyl alcohol - dibromomethane. This system is reported in Horsley's book from Lecat as forming an azeotrope at a bioling point less than 81.0 degrees Celsius. Both components have boiling points of less than 100 degrees Celsius and their refractive indices are well separated, thus making investigation with fairly simple, but accurate apparatus possible.
The Alkylation Of Phenol, William Raymond Stine
The Alkylation Of Phenol, William Raymond Stine
Honors Theses
Attention was focused on the formation of the various isomers of butyl phenol.
Investigations For A Rapid Qualitative Method For The Detection Of Organic Herbicides, Robert Albert Jung
Investigations For A Rapid Qualitative Method For The Detection Of Organic Herbicides, Robert Albert Jung
Honors Theses
The present study is undertaken in an attempt to find a rapid qualitative or semi-quantitative method for the detection of organic herbicides in water.
Measurements Of The Intensity Of Mu-Mesons In Cosmic Rays During A Period Of Unusual Solar Activity, Ronald A. Korsak
Measurements Of The Intensity Of Mu-Mesons In Cosmic Rays During A Period Of Unusual Solar Activity, Ronald A. Korsak
Physics & Astronomy ETDs
Because of the incomplete understanding of the processes which cosmic rays undergo in the atmosphere, there is still no generally accepted treatment of the atmospheric dependent variations of the intensity or preferred method of establishing correct coefficients.
Three-Color Photometry Of The Zodiacal Light, Alan W. Peterson
Three-Color Photometry Of The Zodiacal Light, Alan W. Peterson
Physics & Astronomy ETDs
The major effort of the observational phase of this investigation was placed upon obtaining absolute intensity maps of the zodiacal light in three different colors. Emphasis was also placed upon measurements of polarization and upon photographing the spectrum of the zodiacal light.
Time Variations On The Cosmic-Ray Flux Near The Geomagnetic Equator, Charles L. Hyder
Time Variations On The Cosmic-Ray Flux Near The Geomagnetic Equator, Charles L. Hyder
Physics & Astronomy ETDs
The search for an anisotrophy in the penetrating component of the cosmic-ray flux is usually carried out with narrow-angle directionally sensitive detectors located near the surface of the earth. Directional sensitivity is achieved by using a cosmic-ray telescope, consisting of Geiger counters or of scintillation counters, in a coincidence arrangement. Thus a solid angle of acceptance for the cosmic-ray particles is defined.
A Study Of Team Leader Activity On A Selected Medical Unit In A General Hospital, Margaret Elaine Schulhof
A Study Of Team Leader Activity On A Selected Medical Unit In A General Hospital, Margaret Elaine Schulhof
Loma Linda University Electronic Theses, Dissertations & Projects
The purpose of this study was to observe and analyze the activities of the nursing team leader on a selected medical unit of the Loma Linda Sanitarium and Hospital and to measure the percentage of time spent in each recognized function.
To accomplish this, the descriptive survey method was used. Six team leaders were "shadowed" by an. observer for a total of ten days. Record of all team leader activity was made on a specially prepared form which provided for classification of activity under Leino's six functions for the team leader. These are:
- To Identify the Patient's Nursing problems
- To …
The Vitamin B1-Sparing Action Of Sorbitol, Gisela Eleanor Bethsold
The Vitamin B1-Sparing Action Of Sorbitol, Gisela Eleanor Bethsold
Theses and Dissertations
The present study was initiated to determine the effect sorbitol has upon the enzymatic functions of thiamin; specifically, what effect sorbitol bas upon the alpha-ketoglutarate and pyruvate dehydrogenases activities of rat liver mitochondria. In addition, the effect of varying the dietary sorbitol concentration on the development of an athiaminosis was studied, particularly the effect on growth rate.
Pseudoscalar Interaction In Nuclear Beta Decay, Chander Perkash Bhalla
Pseudoscalar Interaction In Nuclear Beta Decay, Chander Perkash Bhalla
Masters Theses
In Chapter I, the statement of the problem considered in this dissertation is given: the investigation of the existence of the pseudo scalar interaction by the formulation of the theoretical expressions for the beta longitudinal polarization and the beta spectrum in 0 --> 0 (yes) beta transitions and by a comparison of the existing experimental data with the developed theory.
In Chapter II, we explain the reasons for the incorrectness of the conventional treatment of the pseudoscalar interaction, and then give the correct form of the operator for this interaction.
In Chapter III, using the correct form of the pseudoscalar …
The Post-Basic Preparation Received By Administrative, Supervisory And Head Nurses In Six Hospitals, Margaret Josephine Patry
The Post-Basic Preparation Received By Administrative, Supervisory And Head Nurses In Six Hospitals, Margaret Josephine Patry
Loma Linda University Electronic Theses, Dissertations & Projects
It was the purpose of this survey to find out what post-basic preparation the administrative, supervisory and head nurses had received for their positions in six Seventh-day Adventist hospitals. The descriptive survey was chosen as the method of approach in the study. An information card was devised to gather the data. A total of 190 or 81 percent of the 235 anticipated responses were returned. The recommended preparation for nurses in nursing service positions, as set forth by the American Nurses' Association in the Functions, Standards and Qualifications for Practice, was selected as the criteria by which this preparation was …
Irrigation And Drainage Problems In Uruguay, Jerald Emmet Christiansen
Irrigation And Drainage Problems In Uruguay, Jerald Emmet Christiansen
Reports
Synopsis: Uruguay irrigates about 65,000 acres, mostly rice (74%) and sugar cane (15%). Summer rainfall averages about 3.5 in. per month, but frequent droughts seriously affect both crops and livestock. Irrigation can be increased by storage in small reservoirs on tributary streams by means of low earth dams. Some areas will require flood control and draiange before intensive agriculture can be practiced.
A Study To Determine Whether A Relationship Exists Between High Urea Nitrogen Retention And A High Arterial Diastolic Blood Pressure, Esther June Wood
A Study To Determine Whether A Relationship Exists Between High Urea Nitrogen Retention And A High Arterial Diastolic Blood Pressure, Esther June Wood
Loma Linda University Electronic Theses, Dissertations & Projects
Statement of the Problem:
The problem in this study was to determine if a relationship exists between high urea nitrogen retention and a high arterial diastolic blood pressure or diseases that are usually associated with a high arterial diastolic blood pressure.
Method of Study:
The descriptive survey method was used. Data for this study were obtained by reviewing charts of all patients whose NPN was 150 mg. percent or over or whose BUN was 100 mg. percent or over. During the specified two year period the White Memorial Clinical Laboratory records revealed thirty-five patients as falling into this category.
Summary …
Geology Of The East Potrillo Hills, Dona Ana County, New Mexico, William E. Bowers
Geology Of The East Potrillo Hills, Dona Ana County, New Mexico, William E. Bowers
Earth and Planetary Sciences ETDs
The East Potrillo Hills are essentially a low north-westerly trending ridge that lies just north of the Mexican border in southern Dona Ana County, New Mexico. The range is approximately 7 miles long and up to 1 1/2 miles wide. It is cut by transverse canyons that carry water to the bolson only during occasionally heavy rains. The crest of the ranges lies 700 to 900 feet above the extensive La Mesa plain which stretches for more than 20 miles to the north, east, and south. In the northern part of the range, the crest reaches a maximum elevation of …