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The Reaction Between Ethyl Benzene and Aluminum Chloride
Ethyl benzene not only is a starting material for the production of poly-sterols but also is used as an antiknock chemical thus its synthesis is one of the most pressing problems.
Date:
1944
Creator:
Keiichi, Shishido & Saburo, Fukui
System:
The UNT Digital Library
New Type Automatic Gas Alarm
In producing safe and healthful working conditions in chemical plants the authors study an automatic signaling device which becomes activated when concentrations of ethyl chloride, bromine, and iodine vapors in the air increase above permissible limits.
Date:
1946
Creator:
Romanicv, P. G.
System:
The UNT Digital Library
Theory of Superfluidity and Critical Velocity in Helium II
The theory of superfluidity of helium II doesn't cover one important phenomenon--the existence of a critical velocity for which the theory is not able to explain quantitatively. This paper looks to conduct experiments on the need for substantial alterations of the helium II theory.
Date:
August 29, 1949
Creator:
Ginzburg, V. L. (Vitaliĭ Lazarevich), 1916-2009
System:
The UNT Digital Library
Physics and Metallurgy
In this lecture the author discusses the field of metallurgy experienced a conquest on the part of physics in areas of research
Date:
March 15, 1950
Creator:
Masing, G. (Georg), 1885-1956
System:
The UNT Digital Library
The Kinetics of Age Hardening
A study on the development of the conceptions on which age hardening is based. Temporary experimental data on aluminum-silver alloys
Date:
September 1, 1949
Creator:
Koester, Werner
System:
The UNT Digital Library
German Patent 392831
The present invention has as its object the pressure lubrication of a multiple-collar thrust bearing of the latter type which, owing to its special design, is especially suitable for high speed stem and gas turbines, compressors, and pumps.
Date:
unknown
Creator:
Name removed by request of patentee
System:
The UNT Digital Library
The Isotopic Conposition of the Oxygen of Carbonates as a Function of Temperature
With the ubiquity of oxygen in the earth's crust and the accuracy with which differences in the isotopic composition of naturally occurring oxygen have been measured, oxygen isotopes are often used as indicators in studying the mechanism of natural processes
Date:
February 1950
Creator:
Teĭs, R. V. (Rufina Vladimirovna)
System:
The UNT Digital Library
The Ionization of KI, NaI and CaCl Molecules by Electrons
The paper describes experiments on the use of electrons to ionize a beam of alkali halide molecules.
Date:
November 20, 1947
Creator:
Ionov, N. I.
System:
The UNT Digital Library
An Absorption Method for the Extraction of Krypton and Xenon : Part I
This study has shown the possibility of applying the adsorption method to the separation of krypton and xenon from a concentrate
Date:
March 19, 1939
Creator:
Fastovskiy, V. G.
System:
The UNT Digital Library
The Isotopic Composition of Oxygen in Organic Compounds of Vegetable Origin
In an early study to determine the isotopic composition of oxygen given off by green plants the question raised in this study is the role played by the oxygen in carbon dioxide when the latter gas is assimilated by green leaves.
Date:
1950
Creator:
Teĭs, R. V. (Rufina Vladimirovna)
System:
The UNT Digital Library
The Isotopic Abundance Ratio of Carbon in Meteorites
The isotopic composition of chemical elements is determined by the nuclear process by which they are formed. To a certain extent, this abundance ratio is affected by all of the primary nucleogenetic processes involved in the formation of the substance in question.
Date:
March 15, 1950
Creator:
Trofimov, A. V.
System:
The UNT Digital Library
Charge Conjugates for the Invariant Equations of General Relativity
Using previously published work the authors consider the problem concerning the concept of "charge conjugates."
Date:
December 1948
Creator:
Gelʹfand, I. M. (Izrailʹ Moiseevich) & I︠A︡glom, A. M.
System:
The UNT Digital Library
New Method for Determining the Rate of Diffusion (Mobility) of Surface Active Molecules on a Solid-Gas Boundary Surrface
A new method for determining the rate of diffusion of surface-active substances on the boundary surface between a solid substance and gas. This method yields reproducible results.
Date:
1939
Creator:
Pekhil, B. F.
System:
The UNT Digital Library
The Nature of the Electrical Properties and Magnetic Susceptibility of the Intermetallic Compound Mg2Sn
In this work the author investigates the temperature dependence of specific electrical conductivity, Hall's constant, thermo-emf and magnetic susceptibility of the intermetallic compound Mg2Sn
Date:
July 21, 1949
Creator:
Boltaks, B. I. (Boris Iosifovich)
System:
The UNT Digital Library
The System: Thorium Nitrate-Ether-Water Between 0° and 20°
In order to define the conditions for the separation of the two substances in the presence of water, this study has been under way of the quaternary system: thorium nitrate-uranium nitrate-ether-water
Date:
1930
Creator:
Misciatelli, Pietro
System:
The UNT Digital Library
Piezoelectric Properties of Some Titanates and Zirconates of Bivalent Metals that Possess a Perovskite-Type Structure
The dielectric permeability of some titanates and zirconates of bivalent metals that possess the structure of perovskite was investigated
Date:
March 9, 1949
Creator:
Smolenskiy, G. A.
System:
The UNT Digital Library
Patent of Invention--Gr 5--Cl.3--Bearing
The object of this invention is a bearing: a thrust bearing. This bearing is one in which the bearing faces is a continuous annular surface and the other an annular surface divided into shoes having the form of sectors.
Date:
October 28, 1925
Creator:
Fulpius, Edward
System:
The UNT Digital Library
Measurement of Vapour Pressure of Solutions of He3 and He4
Earlier investigations revealed results of the study of properties of solutions of He3 in He4. the authors investigate the concentration of He3 for the application of Raoult's law.
Date:
1950
Creator:
Eselʹson, B. N. (Boris Naumovich); Lazarev, B. G. (Boris Georgievich), 1906- & Alekseevskiĭ, Nikolaĭ Evgenʹevich, 1912-1993
System:
The UNT Digital Library
The Raman Spectra and Structure of Perrhenium Acid and Perrhenate Ion
The Raman spectrum shows that sulphate, selenate and perchloride ions have a tetrahedral structure in solution. Tellurium, molybdenum and tungsten should be surrounded by six oxygen atoms and should therefore form a octahedral structure. The author investigates the Raman-spectra of several perrhenates and of perrhenium acid.
Date:
1939
Creator:
Fonteyne, R. & Van Hespen, C.
System:
The UNT Digital Library
On the Possibility of an Acoustic Image in Analogy to the Optical: the Problem of Vision Through Opaque Media
A "sound-optics" is developed based upon the image-forming properties of sound waves. Examples are given of acoustic images of objects, and it is shown that among other things vision through opaque media is possible to achieve
Date:
1939
Creator:
Pohlman, R. & Lees, Robert
System:
The UNT Digital Library
On the Ordering Effect of a Sound Field onn Suspensions of Non-Spherical Particles
The movement and orientation in a standing sound field of non-spherical particles in which one dimension is small relative to the other two is treated. The time of migration into the loops (of the vibration) and the focusing duration (durability) of the same are given.
Date:
April 2, 1951
Creator:
Pohlman, R.
System:
The UNT Digital Library
On the Thermodynamics of Iron Alloys
In broad outline is shown the possibility of grasping by calculation the equilibria of ferrous alloys with the help of simple thermodynamic relations.
Date:
July 1949
Creator:
Oelsen, Willy & Lees, Robert
System:
The UNT Digital Library
Sorption and Structure of Active Charcoals
The researchers have studied the isotherms of sorption and desorption of water vapor on samples of active charcoals of serially varying porosity.
Date:
April 26, 1947
Creator:
Dubinin, M. M.; Zaverina, E. D. & Hope, E.
System:
The UNT Digital Library
Instrument for Measuring Ship Speeds and Flow Velocities
Patent application concerning an instrument which may be used as a log as well as a means for measuring flow velocities in pipes.
Date:
March 28, 1912
Creator:
Siemens & Halske
System:
The UNT Digital Library