SovietRxiv · Open Access in English
Rediscovering the Soviet scientific archive, in English
25357 full-text translations 14926 English PDFs 22539 abstracts
Showing 50 of 25357 papers
This paper proposes a methodology for the technical and economic evaluation of automated control and management systems for enterprises with continuous technological processes, particularly in chemical and oil-refining industries. It argues that justification should proceed through assessment of pot…
This paper analyzes transient behavior in discrete automatic extremum-seeking systems for multiparameter functions, modeled as Markov chains on a discrete state space. It reformulates the mean first passage time to a target, especially the extremal state, through the probability of not having reache…
This paper develops information-theoretic bounds for the reliability of discrete prediction and regression estimates used in control and monitoring of complex dynamic systems. Treating the entropy of the estimation error as an optimality criterion, it proves that the average information gained by an…
The paper examines relay control of a double-integrator object when the rate of change of the controlled coordinate is not observable, a situation that complicates continuous and optimal control. It proposes a control scheme using a relay element with negative hysteresis and dual feedback, including…
The paper examines the problem of making the gyroscopic moment of a control moment gyroscope independent of the precession angle, since the usual moment expression contains a cosine dependence on the angular position of the angular momentum vector. It compares two approaches: feedback stabilization …
This paper examines the dynamic behavior of a two-channel power tracking system in which a correcting tracking system feeds its error signal into the power-system amplifier. Using root locus analysis, the authors study how the poles and zeros introduced by the correcting channel move under parameter…
This paper compares three methods for annealing wire after drawing: electrocontact heating, induction heating, and furnace annealing of coils or bundles. It explains the metallurgical need for annealing as the removal of work hardening, which restores ductility and electrical conductivity, and evalu…
A compensating pulse AC voltage stabilizer is described for supplying the electromagnet of a betatron, where high excitation-voltage stability is required for sensitive flaw-detection measurements. The circuit uses a matching autotransformer with two antiparallel thyristors as the regulating element…
This paper addresses the design of a receiving register that must retain a binary code until the arrival of the next code, particularly for feeding digital-to-analog conversion from magnetic-tape readout of analog-to-digital converter results. It compares a conventional paraphase-entry register impl…
This paper considers the selection of analog multiplication and division devices for control applications in chemical production, where long-term stable operation, modest accuracy requirements, simple maintenance, and direct connection to process signals are important. It compares analog and digital…
The paper formulates an optimization problem for the peripheral structure of a perception system, seeking to minimize signal transformation error at fixed system complexity. It models the measuring block as parallel links governed by an operator parameter, relates link complexity to dynamic range an…
This paper develops a model for the peripheral stage of a perception system by specifying operators that transform an input signal into a measured quantity and establish a signal-dependent coordinate system. Assuming a linear sensor for the first transformation, the authors define the second operato…
This paper proposes a general framework for modeling human perception systems, with emphasis on common principles underlying auditory and visual perception. It argues that perception systems should be treated as functionally identical systems for extracting information from signals under constraints…
This review examines sign-based indicators as a key technical means for improving human, computer interaction through reliable, inexpensive, and high-speed visual display systems. It proposes a classification based on technical implementation, distinguishing coordinate and projection indicators, thr…
This paper describes magnetic tape marking for a digital system that records continuous electrical signals as digital codes for input to a computer. It compares three arrangements for placing code information and synchronizing pulses on pre-marked tape, deriving the required inter-zone time interval…
This paper addresses the design calculation of a magnetic tape storage device for a digital recording system intended to prepare continuous experimental electrical signals for input to a digital computer without modifying the computer itself. It formulates relations for selecting tape length, tape s…
This paper examines synchronization circuits for forming pulse sequences used to mark magnetic tape in a digital recording system, where asynchronous start signals can distort the first or last pulses of a recorded series. It compares two existing schemes, one using two shifted synchronization-pulse…
The paper addresses hardware control of decoders in electronic digital computers, where faults may select extra buses, select no bus, or select a single false bus, with potentially serious effects on address and operation-code paths. It reviews duplication, special-code, and summing-transformer chec…
This paper examines signal switching in multichannel analog-to-digital converters and compares established methods based on switching analog quantities, digital quantities, and control signals. It argues that although analog switching remains justified where accuracy requirements are moderate and eq…
The paper presents a procedure for quantitatively evaluating the effectiveness and reliability of hardware control in digital devices when studied through full-scale tests or digital simulation. Building on previously derived reliability formulas, it specifies the statistical characteristics needed …
This paper addresses the selection and evaluation of hardware control methods for digital devices by modeling a binary decoder with a hardware checking circuit on a general-purpose digital computer. It describes two programs: one verifies the correctness of the decoder and control circuit by enumera…
This paper surveys algorithmic languages for modeling digital devices, emphasizing the need for formal, clear, flexible languages oriented to equipment classes and levels of description rather than ad hoc programming. It compares ALGOL-60-based and specialized systems, including PROJECT, MODIS, LOTI…
This paper examines reliability estimation for a computing center composed of multiple homogeneous digital computers, reserve machines, and repair crews, where center failure is defined by the number of failed computers exceeding the reserve capacity. It reviews an existing exact probability formula…
This commemorative article surveys the life and work of Konstantin Vladimirovich Radugin on the occasion of his 75th birthday, emphasizing his role in Siberian regional geology and geological education at Tomsk Polytechnic Institute. It outlines his career from field geologist to professor, his inve…
This paper proposes an inertial-plasma hypothesis for the origin of the Earth’s intrinsic magnetic and electric fields, arguing that rotation alone is insufficient and that a plasma-like core is required. Drawing on seismology, magnetohydrodynamics, and observations of planetary and solar magnetic f…
This paper develops a calculation scheme for inflow to a perforated well that combines several hydrodynamic imperfections: channels at casing openings, incomplete perforation of the productive interval, and radial flow in the drainage region. Using geometric models of thin-walled bodies around perfo…
This paper reports laboratory measurements of the physical properties of oil from the Lomovoye field in northern Tomsk Oblast, based on ungassed samples from well 201 under formation conditions of 274 ati and 106°C. Using standard reservoir oil analysis and viscometric measurements, the study determ…
This paper examines the occurrence and migration of antimony in groundwater associated with ore deposits in the Kuramin and Alai ranges of the Tien Shan. Based on hydrogeochemical investigations and analyses of 215 water samples from gold ore, polymetallic, copper molybdenum, and antimony deposits, …
This paper reviews and evaluates stratigraphic schemes for the Precambrian and Lower Cambrian deposits of the Batenev Ridge, drawing on the author’s long-term field investigations and published work by other geologists after 1959. It proposes a subdivision of the pre-Devonian succession into major s…
This paper addresses the unsettled nomenclature and classification of siliceous rocks, a problem attributed to varied origins, mineral assemblages, geological settings, and long-standing use of numerous descriptive names. Drawing on petrographic literature and an empirical geological approach, it pr…
This reflective paper surveys developments in the geology of Western Siberia associated with the Siberian geological school of V. A. Obruchev and M. A. Usov. It argues for the continuing importance of deep geology, especially the use of xenoliths, assimilation zones, mineral admixtures, and tectonic…
This paper examines the magnetic properties of rocks at the Evgrafovskoye gold-ore deposit in Central Transbaikalia in order to assess whether magnetic surveying can help map quartz veins and intrusive contacts. Magnetic susceptibility and remanent magnetization were measured for 400 samples taken a…
This study examines how the thermoelectric EMF of pyrite varies with the heating temperature of the hot electrode and with crystallographic orientation. Measurements were made on pyrite crystals from several gold ore, polymetallic, metamorphic shale, and carbonate veinlet settings, using cube, octah…
This paper proposes interregional correlation of oil and gas bearing strata according to their position within sedimentation cycles, using examples from major platforms and marginal troughs. It argues that many large terrigenous hydrocarbon accumulations occur in the lower parts of transgressive com…
This paper examines stress distribution and failure mechanisms in anisotropic, layered rock under concentrated static loading, with attention to implications for drilling and borehole deviation. Using photoelastic experiments on laminated Plexiglas and glue models, the study compares isochromatic, i…
This paper reassesses the drilling-based evaluation of the Butrakhtinskoye deposit of copper and other metals, which had been downgraded after exploratory drilling despite earlier indications of industrial value. By comparing borehole positions with the inferred surface outcrops and probable ore-bod…
This paper describes a practical procedure for correcting a borehole whose trajectory deviates from a specified target point. It outlines how to determine the target zenith angle from elevations and horizontal offset, obtain the borehole inclination and azimuth from inclinometer data, and use a Wulf…
This paper proposes an analytical method for estimating actual and expected limiting interpolation errors in ore exploration, with attention to asymmetric distributions of mineralization parameters, block geometry, exploration area, and anisotropy of variability. Building on the use of maximum first…
This paper examines the position and character of the Permian to Triassic boundary in the Kuznetsk Basin, where lithological similarity and scarce visible fossils have led to disagreement over stratigraphic placement. Using plant impressions and spore-pollen assemblages from boreholes in the Zhernov…
This paper examines the origin of alkaline nepheline-bearing rocks in the Tyrdanov Ulus area of the Kuznetsk Alatau, focusing on whether they represent an independent Devonian intrusion or products related to the Uybat granitoid pluton. On the basis of field relations, petrographic descriptions, min…
This paper reports palynological evidence for Lower Triassic deposits in Tomsk Oblast, identified during petroleum exploration in two boreholes from the Strezhevaya and Ketskaya areas. The study characterizes spore and pollen assemblages from six samples, noting a predominance of spores, especially …
This paper examines crystallization from two-layer systems consisting of ethyl alcohol and aqueous salt solutions as a model of salting-out processes relevant to mineral formation. It describes an experimental method in which mutual diffusion between alcohol and water removes solvent from the salt s…
This paper describes the geological structure, mineral assemblages, and formation sequence of the Zarkashan skarn-gold deposit in Ghazni Province, Afghanistan. On the basis of field relations, petrographic observations, and exploration data, it relates gold mineralization to Mesozoic granitoid intru…
This study examines the natural radioactivity of Upper Permian Kolchuginskaya series deposits in the Leninsky geological-economic district of Kuzbass, based on 1,435 borehole samples of siltstone and sandstone and additional measurements of coal. Radioactivity was measured by a relative method using…
This study examines density variations in Upper Permian Kolchugino Series rocks from the Leninsky geological and economic region of Kuzbass, using 1,707 samples taken from 11 boreholes. Densities were measured by hydrostatic weighing and processed statistically for the main lithological groups: fine…
This paper examines the origin of the gabbro-syenite complex associated with the Kondoma group of iron-ore deposits in Gornaya Shoria. On the basis of petrographic and petrochemical interpretation, it argues that the district’s gabbroid and syenitoid rocks are comagmatic products of a single complex…
This article argues that Khakassia may contain buried Quaternary chemogenic lacustrine deposits formed in former closed deflationary basins under arid climatic conditions. Using geomorphic observations, comparisons with modern saline lakes such as Lake Shira, and considerations of catchment geology,…
This paper examines mineral inclusions in coals from the Tarbagatai, Kharanor, and Chernovskoe deposits of Transbaikalia using hand specimens, thin and polished sections, and spectral analysis data. It distinguishes terrigenous inclusions, including gold, quartz, and feldspar, from authigenic minera…
This paper formulates forecasting criteria for gold ore deposits formed during post-geosynclinal tectonic activation, using the Kuznetsk Alatau and Central Transbaikalia as comparative examples. It relates gold mineralization to domal uplift, horst and graben structures, transverse deep-seated ore-c…
