Resource Type
Serial/Series Title
Country
States
Month
222 Matching Results
Results open in a new window/tab.
Scattering of Slow Neutrons in Crystals
The authors consider the scattering of slow neutrons in crystals of identical nuclei. Formulas are derived for the elastic and inelastic scattering of neutrons.
Date:
1947
Creator:
Akhieser, A. & Pomeranchuk, J.
Object Type:
Report
System:
The UNT Digital Library
Calculation of the Lowest Excited Levels of the Naphthalene Molecule
A given calculation of the lowest energy states of the naphthalene molecule by the method of molecular orbitals with consideration of the non-orthogonality of the wave functions of neighboring atoms.
Date:
May 14, 1947
Creator:
Davydov, A. S. (Aleksandr Sergeevich), 1912-1993 & Kasha, M.
Object Type:
Report
System:
The UNT Digital Library
The Theory of Resonance Scattering of Particles
A simple method is proposed for considering the problem of resonance scattering of slow particles.
Date:
October 8, 1947
Creator:
Akhiezer, A. I., (Aleksandr Ilʹich), 1911-2000 & Pomeranchuk, I. (Isaak), 1913-1966
Object Type:
Report
System:
The UNT Digital Library
The Dissociation Equilibrium of Ferrous-Nitric Oxide Salts
In an earlier publication the author described experiments on the fixation of nitric oxide by ferrous salts. The author has improved his experimental technique in a review of his previous results.
Date:
December 6, 1924
Creator:
Manchot, W.
Object Type:
Report
System:
The UNT Digital Library
Concerning the Quenching of the Fluorescence of Chlorophyll and Magnesium Phthalocyanin and the Interaction of These Pigments with the Quenching Substance
An investigation of the quenching of fluorescence of dyestuffs (pigments) by other molecules will clarify the nature of the photochemical effect exerted by dyestuffs in general and chlorophyll in particular.
Date:
June 26, 1950
Creator:
Evstigneyev, V. B.; Gavrilova, V.A. & Krasnovskiĭ, A. A. (Aleksandr Abramovich), 1913-
Object Type:
Report
System:
The UNT Digital Library
Investigation of Proportional Counters
The author determines in this work the dependence of the coefficient of gaseous amplification on the place of incidence of the ionizing particles in the counter when the counter is filled with various gases.
Date:
April 28, 1949
Creator:
Trofimova, V. A.
Object Type:
Report
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.
Object Type:
Report
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
Object Type:
Report
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
Object Type:
Report
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.
Object Type:
Report
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
Object Type:
Report
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.
Object Type:
Report
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
Object Type:
Report
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
Object Type:
Report
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
Object Type:
Report
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.
Object Type:
Report
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)
Object Type:
Report
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.
Object Type:
Report
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)
Object Type:
Report
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.
Object Type:
Report
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.
Object Type:
Report
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.
Object Type:
Report
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.
Object Type:
Report
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
Object Type:
Report
System:
The UNT Digital Library