SovietRxiv · Open Access in English
Rediscovering the Soviet scientific archive, in English
25456 full-text translations 14926 English PDFs 22540 abstracts
Showing 50 of 25456 papers
This paper reviews and revises the stratigraphy of Tertiary deposits in the Tomsk area, drawing on earlier paleobotanical, lithological, mineralogical, and borehole studies as well as new observations from concealed sequences beneath Tom River terraces. It distinguishes multiple suites from Paleocen…
This paper reports the first results of a study of fossil wood specimens collected from the Kolchugino Series in the Leninsk-Kuznetsk district of the Kuzbass, using transverse, radial, and tangential sections and cellulose film preparations. After reviewing previous work on Upper Paleozoic woods of …
This paper reports field experience using hydrogeochemical prospecting for ore deposits in Transbaikalia under permafrost and talik conditions where the method had been little applied. It relates heavy metal contents in natural waters to geological setting, rock mineralization, chemical activity of …
The article proposes an auxiliary prospecting methodology for detecting concealed mineral deposits, especially blind ore bodies lying beneath cover or below known ore fields. Radugin argues that post-ore magmatic dikes may capture, assimilate, and transport traces of ore material upward, so their xe…
This paper examines albite-bearing crystalline schists exposed along the southeastern contact of the Borus Range hyperbasite massif and considers their petrography, mineral associations, and origin. On the basis of field relations, microscopic descriptions, optical mineralogy, and a chemical analysi…
This paper examines the geology and controls of gold mineralization at the Ilya gold ore deposit in Eastern Transbaikalia, focusing on a major northeast-trending fault zone developed in granitoids and later volcanic and dike rocks. Based on field observations, petrographic study, structural analysis…
This paper argues that concentration flows produced during mass crystallization are a major mechanism of material transport during crystallization differentiation of magma. Drawing on experimental studies of supersaturated solutions and crystal growth, it proposes that growing crystals generate upwa…
This paper describes newly discovered gold ore occurrences in the Solgon area adjoining the Kommunar ore field on the eastern slope of the Kuznetsk Alatau, emphasizing the structural controls on mineralization. Using geological mapping and fracture analysis, it relates ore localization to a major su…
This article argues that brigade cost accounting is an underused organizational reserve for reducing the cost of geological exploration work, especially in drilling and mining operations. Drawing on Soviet regulations, reported experience from geological trusts and parties, and examples such as mate…
This paper examines material incentives as a condition for introducing multibottom drilling in exploratory wells within Soviet geological exploration practice. It argues that revised planning and bonus systems, which emphasize cost reduction and exploration efficiency rather than only drilled footag…
This study applies fragmentation mass spectrometry to investigate structural distinctions and mutual transformations among N-oxyacyl lactams, oxacyclols, and cyclodepsipeptides. Mass spectra of cyclols, cyclodepsipeptides, a model oxacillactam, and related lactam derivatives were compared to identif…
This paper reinterprets the intrusive geology of the Natalyevskoye gold deposit area in the Mariinsk taiga, where earlier work had assigned the intrusive rocks and associated mineralization to a single Martaiga complex. On the basis of field relations, petrographic observations, skarn associations, …
This paper examines elongated gabbroid bodies exposed within the Kempirsai ultrabasic massif of the Southern Urals, asking whether they are dikes, roof remnants, or structures related to folding and faulting. Using field relations, lithologic descriptions, contact features, structural attitudes, and…
This paper derives a general expression for the differential cross section of radiative electron positron pair production on a nucleus, in the process where an incident photon produces a pair and an additional emitted photon in the nuclear Coulomb field. Working in the first nonvanishing order of pe…
This paper examines how tectonic structures control the formation, preservation, and spatial distribution of silicate nickel deposits in the weathering crust of ultrabasic rocks in the Kempirsai district. Using geological mapping and structural interpretation of the Kempirsai hyperbasite massif, it …
This paper examines variations in the radioactivity of accessory sphene in rocks of the Elekmonar multiphase granitoid massif in Gorny Altai, with attention to intrusive phase, contact relations, and sampling elevation. Using heavy mineral separates from systematically collected horizontal and verti…
The study examines the configurational assignment of cis and trans isomeric platinum(IV) glycinato ammine complexes of composition [PtGl2(NH3)2]Cl2, prepared by oxidation of corresponding tetramines. Configuration was tested by resolution into mirror isomers through fractional crystallization of cam…
This paper studies isobaric states in a simplified strong-coupling model of an extended fixed nucleon interacting with charged mesons, with total charge conservation retained. It introduces a method based on adding conserved quantities to the Hamiltonian with Lagrange multipliers, then shifts the me…
This paper examines whether germanium can dissolve in macroquantities in diamond-like ternary semiconductor compounds whose bonding is closer to that of elemental germanium than typical A3B5 compounds. Alloys along the ZnGeAs2 to 4Ge and CuGe2P3 to 6Ge sections were synthesized by melting, direction…
This paper examines transient heating of solid bodies when the temperature of the heat source varies with time, with emphasis on radiant heating. Starting from the analogous convective heat conduction problem for an infinite plate with a linearly increasing medium temperature, the authors derive a L…
This paper examines variation in stationary shunts for high direct currents caused by nonuniform current supply, a problem that becomes more significant as terminal height increases. Using a simplified symmetrical shunt model, the authors derive expressions for the potential field by conformal mappi…
This paper examines steady heat conduction with internal heat generation in a rectangular bar subject to third-kind boundary conditions and a symmetric temperature field. Using a proposed relation between the second derivatives of temperature in the two coordinate directions, the authors present bot…
This study examines the thermal regime of single-layer hermetically sealed microwire resistor models operating under natural convection at different ambient temperatures. Models corresponding to several resistor types were constructed with fine winding wire on varnish-coated ceramic bodies, and wind…
This paper experimentally investigates the thermal behavior of single-layer varnish-protected unsealed microwire resistors under natural convection, focusing on how winding overheating depends on dissipated power and ambient temperature. Model resistors with standardized dimensions were wound with f…
This paper presents calculation procedures for the mixing of ideal gases using molar quantities and tabulated thermodynamic properties. It derives energy balance relations for mixing in a flow, at constant volume, and by feeding gas into a volume already occupied by another gas, including cases with…
This paper compares heat transfer through finned and smooth plane walls under idealized conditions, assuming constant thermal conductivity in the adjacent layer and highly conductive, low-height fins at the wall temperature. Using conformal mapping, it transforms the region outside a finned wall int…
This paper addresses transient heating or cooling of an infinite flat wall subjected to different convective conditions on its two faces, a problem whose exact analytical solutions are described as cumbersome for practical use. The authors propose approximate temperature field expressions constructe…
This paper describes a laboratory viscometer developed for measuring the viscosity of molten furnace slags at temperatures relevant to liquid slag removal systems. The device uses a direct-current motor with a rigidly connected molybdenum rod and cylindrical head immersed in the melt, with viscosity…
This article examines the reduction of circulating pump head in large thermal power plants, where each meter of head can impose substantial auxiliary power consumption. It argues that, when geometric lift and system resistance are minimized, condenser hydraulic resistance becomes a major component o…
This paper addresses difficulties in compiling direct heat balances for solid-fuel boiler tests, especially the unreliable sampling and quantification of slag, siftings, and fly ash used to estimate mechanical unburned fuel losses. It develops calculation methods that express the main losses through…
This paper develops an analytical treatment of coupled heat and moisture transfer in a homogeneous isotropic moist body, based on Lykov’s differential equations. For the special case of an infinite cylinder with constant initial temperature and moisture content, radial symmetry, a prescribed surface…
This paper develops an approximate engineering method for calculating the steady temperature field in a short cylindrical coil with uniform internal heat generation and convective heat exchange at its outer surfaces. Using the method of parallel integration, the heat conduction equation is reduced b…
This article examines how low fuel prices can undermine the economic justification for high thermal efficiency in condensing power plants, since efficiency improvements require additional capital investment while fuel savings become less valuable. Using a cost minimization model relating plant effic…
The article critiques the 1955 Ministry of Power Plants method for allocating standard fuel consumption to heat consumers at combined heat and power plants, arguing that it treats boiler supplied heat and turbine extraction heat as equivalent and incompletely accounts for plant heat scheme losses. I…
This paper examines heat conduction in solids under asymmetric heat exchange, where the point of maximum or minimum temperature, termed the thermal center, need not coincide with the geometric center and may vary with time. Using a plane wall with uniform internal heat generation as an example, it d…
The paper describes a laboratory apparatus for studying the isothermal behavior of an ideal gas and for measuring the work performed during an isothermal process. The setup uses a movable graduated burette connected by a flexible tube to an open mercury vessel, forming a manometer that allows simult…
This paper develops empirical expressions for estimating the pressure exerted by an airflow on a plumb-line wire during mine-shaft orientation as a function of air velocity and wire diameter. Starting from the standard drag formulation using dynamic pressure, projected area, and a Reynolds-dependent…
This paper examines how the diameter of a plumb-line wire affects the accuracy of mine-surveying alignment, particularly when heavier plumb weights require thicker wires. Laboratory observations and theoretical derivations are used to estimate the additional sighting and alignment errors caused by v…
This paper addresses the selection of plumb line weight and wire diameter for mine orientation, a problem affecting orientation accuracy and lacking definite practical guidance. It develops a calculation method that combines errors from air current pressure in the shaft and elastic forces in the wir…
This paper examines whether ordinary geometric leveling can replace hydrostatic leveling for short distance height setting requiring accuracies of about 0.1 to 0.2 mm. Using error formulas for pointing, micrometer reading, level bubble setting, staff inclination, and staff graduation accuracy, the a…
The paper examines centering errors in the measurement of angles formed by short geodetic directions, where millimeter scale displacement of the instrument can produce large angular errors. It distinguishes random and systematic centering errors for plumb line and optical centering devices, criticiz…
The paper develops a general geodetic method for the direct problem, inverse problem, and direct intersection on the surface of the Earth’s spheroid. Starting from first order differential equations for a geodesic and Clairaut’s relation, it derives integral expressions connecting latitude, longitud…
This article systematizes the principal initial connection conditions used in the mixed and direct adjustment of surface ray networks. It distinguishes four mixed types, ray, side, vertex, and additional conditions, explains their origin in split network particles with supporting and constructed val…
This introductory paper formulates the adjustment problem for surface ray networks when the initial data exceed the minimum needed for unique construction. It distinguishes preparatory, intermediate, and final stages, then characterizes the primitive constraint relations associated with mixed, direc…
This paper proposes a specialized set of coordinate increment tables to simplify mine surveying computations when mechanical calculators or standard trigonometric and logarithmic methods are impractical. It reviews limitations of existing geodetic and mine surveying tables, especially insufficient p…
The paper studies the relation between four-dimensional symmetric conformally Euclidean spaces of zero signature and line geometries associated with subgroups of projective transformations of three-dimensional projective space. It introduces generalized biplanar spaces defined by absolute collineati…
This paper addresses the calculation of mean squared errors in horizontal angle measurements caused by improper centering of the theodolite and signals, a recurring task in accuracy assessment for mine surveying. After reviewing earlier graphical and tabular methods and noting their limitations when…
This article presents a calibration procedure for semiconductor thermistors used to determine the temperature of measuring wires over relatively small temperature ranges, where conventional fixed point calibration is impractical and individual thermistor scales are nonuniform. The method compares th…
The paper studies the asymptotic distribution of eigenvalues of the Laplace operator in an arbitrary polygonal domain, including nonconvex polygons, under either Dirichlet or Neumann boundary conditions. It derives trace formulas for an auxiliary wave equation by localizing the Green function in the…
This paper examines the technical and economic basis for selecting scales for special departmental topographic surveys, arguing that survey scales were often overstated because design convenience was confused with required positional accuracy. Using cost and labor tables for adjacent survey scales, …
