Showing 50 of 25456 papers

Physicochemical Analysis of the Aniline-Nitrobenzene System

A. S. Naumova and K. A. Prokop’eva
1953 SovietRxiv: ru-195301.08312

This study examines physicochemical evidence for interaction between aniline and nitrobenzene, a system known to develop a reddish brown color on mixing. Purified components were investigated by electrical conductivity tests, viscosity and density measurements at several temperatures, viscosity and …

Electrical Conductivity and Viscosity of the Systems: Isovaleric Acid-Methyl Alcohol and Acetic Acid-Methyl Alcohol

A. S. Naumova
1953 SovietRxiv: ru-195301.08311

This study examines physicochemical interactions in binary liquid systems of methyl alcohol with isovaleric acid and with acetic acid. Electrical conductivity, density, and viscosity were measured at 0, 25, and 45 °C, and composition dependent curves, temperature coefficients, and viscosity correcte…

Flame combustion process of gas under conditions of a free turbulent jet

N. N. NORKIN
1953 SovietRxiv: ru-195301.08307

This paper examines gas flame combustion in free turbulent jets, arguing that purely hydrodynamic theories of cold turbulent jets cannot adequately describe burning flames because they omit chemical kinetic parameters. Using experiments on water gas issuing from burners of varied diameters, velociti…

Electrical Strength of Dielectrics and Their Dielectric Permittivity

E. K. Zavadovskaya
1953 SovietRxiv: ru-195301.08306

This paper examines how the electric strength of dielectric materials is related to dielectric permittivity, focusing on alkali halide crystals. It compares theoretical expressions linking breakdown strength to total permittivity and to field-induced mechanical stresses with experimental dependencie…

Dielectric strength of dielectrics and the crystal lattice constant

E. K. Zavadovskaya
1953 SovietRxiv: ru-195301.08305

This paper examines the relation between dielectric strength and crystal lattice constant in alkali halide dielectrics, using experimental data and comparisons with earlier theoretical arguments on ionic radius, ionization potential, and lattice bonding. For simple alkali halide crystals, the dielec…

Electrical Strength and Electron Trapping Energy in a Dielectric from Experimental Data

A. A. VOROB'EV and E. K. ZAVADOVSKAYA
1953 SovietRxiv: ru-195301.08304

This paper examines the relation between the electric strength of dielectrics and the binding energy of their most weakly trapped electrons. Using experimental data for alkali halide crystals, color centers, sulfur, MgO, and related materials, the authors compare breakdown field strengths with optic…

On the relationship between polarizability and the width of the forbidden energy band for electrons in a dielectric

A. A. Vorob'ev
1953 SovietRxiv: ru-195301.08303

This paper examines the relation between dielectric polarizability and electron excitation energies in alkali halide crystals. Using tabulated static and optical dielectric constants together with ultraviolet intrinsic absorption edges and energies for electron release from F centers, it compares th…

Lower Cambrian of the Western Sayan

A. G. Sivov
1953 SovietRxiv: ru-195301.08223

This paper reassesses the stratigraphy of Lower Cambrian deposits in the Western Sayan, focusing on the position of the West Sayan Formation, its analogues, and associated intrusive rocks. Drawing on long-term field observations, lithological correlations, unconformities, tectonic relationships, and…

Cockade textures of pyroxene-feldspar metasomatic formations

G. A. IVANKIN
1953 SovietRxiv: ru-195301.08219

This paper describes unusual cockade-like textures in pyroxene-feldspar metasomatic formations observed near the Sartygoy mine in Khakassia, where skarnification affected limestone remnants and gabbro-dioritic rocks associated with a granitic pluton. Using field relations and petrographic observatio…

Contact Metamorphism of the Sheregesh Iron Ore Deposit in Gornaya Shoria

V. G. KOREL
1953 SovietRxiv: ru-195301.08218

This paper examines the contact metamorphism of the Sheregesh iron ore deposit in Gornaya Shoria, focusing on its relation to syenite bodies and the younger granites of the Sarlyk massif. On the basis of mineralogical and textural observations of skarns, ores, and country rocks, it describes amphibo…

On the accumulation conditions and facies variability of coals from one of the seams of the Prokopyevsk District of Kuzbass

A. B. TRAVIN
1953 SovietRxiv: ru-195301.08217

This study examines the petrographic composition, facies variability, and accumulation conditions of a coal seam in the Prokopyevsk district of the Kuzbass on the basis of 17 seam samples collected along and across strike. The analysis distinguishes lower, mainly bright and semibright coal bands fro…

Stratigraphic Position of the Hyperbasites of Tuva and the Western Sayan

V. A. KUZNETSOV
1953 SovietRxiv: ru-195301.08216

This paper reexamines the age and stratigraphic position of ultrabasic intrusions in Tuva and the Western Sayan, a question important for regional tectonics and mineral exploration. On the basis of several years of field observations, mapping of hyperbasite belts, fossil evidence from the Aktovrak F…

Microcline (Experiments in Feldspar Taxonomy)

A. M. KUZMIN
1953 SovietRxiv: ru-195301.08215

This paper critically reexamines the mineralogical status of microcline within the alkali feldspars, focusing on its relation to orthoclase, anorthoclase, sanidine, adularia, and albite. Drawing on published crystallographic, optical, chemical, and genetic data, the author reviews earlier interpreta…

Nuclear Moments

B. T. Feld
1953 SovietRxiv: ru-195301.01826

In recent years, much information has been accumulated concerning the static properties of nuclei. Various methods have been used to determine nuclear spins, magnetic moments, and electric quadrupole moments: optical spectroscopy, molecular and atomic beams, nuclear induction, and microwave spectros…

Activated Adsorption on Semiconductors

F. F. Vol'kenshtein
1953 SovietRxiv: ru-195301.01516

The present article is devoted to certain questions in the theory of adsorption. It will deal with the mechanism of so-called “activated” adsorption. We shall confine ourselves here to the qualitative aspect of the matter. Readers interested in mathematical questions should consult the original work…

MERCURY SEAL **)

In some cases, the entry into a vacuum system of vapors of materials used for lubricating stopcocks is undesirable.
1952 SovietRxiv: ru-195201.98913