Recent Papers

Interaction of a Neutron with an Electron

Magnetic Rotation of the Plane of Polarization in Centimeter Waves

STATISTICAL NATURE OF THE IONOSPHERIC STRUCTURE

CAPTURE OF $\mu$-MESONS BY NUCLEI AND THE STRUCTURE OF INTRANUCLEAR NUCLEON SHELLS

Cherenkov Selector of Heavy Particles

THE METHOD OF “DRY” TEMPERATURE DEVELOPMENT AND THE CHOICE OF EMULSION TYPE WHEN WORKING WITH LARGE DOSES OF THERMAL NEUTRONS

DIELECTRIC CONSTANT AND MAGNETIC PERMEABILITY OF VARIOUS FERRITES AT MICROWAVE FREQUENCIES

N. N. Schiller’s Principle*)

FAST NEUTRON SPECTROMETER

CONCERNING A. A. MAKSIMOV’S LETTER TO THE EDITORS OF THE JOURNAL “PHYSICS-USPEKHI”

LATTICE DEFECTS IN SILVER BROMIDE

IONIZATION OF THE $K$-SHELL OF RECOIL ATOMS IN THE $\alpha$-DECAY OF POLONIUM

CONCERNING N. F. OVCHINNIKOV’S ARTICLE “DISCUSSION OF I. V. KUZNETSOV’S REPORT”\*)

Stable Dosimeter Based on a CdS Single Crystal

Photographic Method for Determining the Dispersion of Optical Constants of Metals

MASS-SPECTROGRAPHIC STUDY OF ION REACTIONS IN HYDROGEN

Index of Articles Published in *Uspekhi Fizicheskikh Nauk*, Volumes XLI–L

ON S. V. TYABLIKOV’S REVIEW OF S. I. PEKAR’S BOOK *STUDIES IN THE ELECTRON THEORY OF CRYSTALS*

APPLICATION OF ELECTRON MULTIPLIERS FOR COUNTING ELEMENTARY PARTICLES AND QUANTA

This review presents an account of the methods developed to date for using electron multipliers as counters of elementary particles and quanta. Sections 2–5 consider certain characteristics of multipliers that are of interest from the standpoint of their application as counters; the remaining sectio…

OBSERVATION OF THE PROCESS OF FORMATION OF THIN METAL FILMS USING AN ELECTRON MICROSCOPE

PHOTOCHEMICAL TECHNOLOGY FOR PROCESSING GLASS PRODUCTS*)

THE RESOLUTION PROBLEM IN DIFFRACTION MICROSCOPY

ARTIFICIAL REFRACTIVE MEDIUM FOR RADIO LENSES

S. I. Vavilov’s Unknown Work on Radio Detection

Detailed Analysis of the Disintegration of Light Nuclei by High-Energy Nucleons

Device for Demonstrating Huygens’ Principle *)

CROSS SECTIONS OF REACTIONS INDUCED BY NEUTRONS WITH AN ENERGY OF 14.5 MeV

THE ECLIPSE METHOD FOR DETERMINING THE DIAMETER OF STARS

Thermoluminescence as a Tool for Scientific Research

ELECTRICAL PHENOMENA ACCOMPANYING THE FREEZING OF AQUEOUS SOLUTIONS

HIGH-SENSITIVITY SLOW NEUTRON COUNTER

OBSERVATION OF THE SHADOW FROM AN ELECTRON BEAM

Direct Current Amplifiers

IMPROVING THE SENSITIVITY OF A THERMOCOUPLE PRESSURE GAUGE

Current State of the Theory of Thermoelectric and Thermomagnetic Phenomena in Semiconductors

On the Phosphorescence in Visible Light of X-rayed Minerals, Crystals, and Powders

This paper reports experimental observations of visible phosphorescence in minerals, ionic crystals, melts, and powders after exposure to X-rays. Specimens were irradiated under specified tube conditions and then examined for coloration, afterglow, temperature effects, photographic action, and lumin…

Direct iodination and bromination of aromatic compounds with substituents of the second kind in the presence of a nitric-sulfuric nitrating mixture

This paper examines direct iodination and bromination of aromatic compounds bearing meta-directing substituents using a nitric acid and sulfuric acid nitrating mixture. The author tests benzoic acid, nitrobenzene, benzaldehyde, benzophenone, and m-dinitrobenzene under varied conditions, optimizing a…

Thermal Analysis and Colorimetric Study of Complex-Forming Systems Containing Quinone

This study examines complex formation in binary systems containing p-benzoquinone, motivated by unresolved questions about the structure of quinhydrones and related quinone complexes. Twenty systems combining quinone with hydrocarbons, phenols, acids, nitro compounds, and dibenzyl sulfide were inves…

Study of the Complexation Reaction of Amides with Phenols and Carboxylic Acids

This study examines the electronic character of amide reactivity in complex-forming reactions, focusing on binary systems containing acetamide, acetanilide, benzamide, or urea with phenols, carboxylic acids, and selected related organic compounds. The systems were investigated by physicochemical met…

On the Complexation of Boric Acid Esters with Various Organic Compounds

This study examines complex formation between trimethyl and triisoamyl borates and several organic compounds, including alcohols, phenol, carbonyl compounds, nitro compounds, nitriles, and pyridine. Using an electrochemical method based on electromotive force measurements in sodium, platinum cells i…

An experiment in dyeing with p-nitrosodimethylaniline hydrochloride

This paper investigates the unexpected ability of p-nitrosodimethylaniline hydrochloride to condense directly on fibers, forming brown to black basic dyes distinct from methylene gray. The authors prepare and stabilize the reagent, develop dyeing procedures for wool, silk, tannin-mordanted cotton, a…

Box Coking Experiments with Blends Containing a High Proportion of Kuzbass Gas Coals with the Addition of Finely Ground Coke

This paper reports box coking experiments designed to test whether finely ground coke permits higher proportions of Kuzbass gas coals in metallurgical coke charges without loss of coke quality. Charges containing gas, coking, lean coking, and fat coals were coked in old and new ovens with and withou…

On the Methodology for Testing Coals with Respect to Mechanical Strength and Thermal Stability

This paper addresses the need for practical classification criteria for coal based on mechanical strength and thermal stability, properties that affect fuel handling, crushing, beneficiation, and combustion behavior. After reviewing earlier compression, drop, drum, blasting, and heating tests and no…

On the Issue of Coal Beneficiation in a Heavy Medium

The article addresses coal beneficiation in dense media, especially the need for separators whose capacity does not fall sharply when difficult-to-wash coals yield large amounts of middlings. It proposes a rotating perforated drum separator operating in a magnetite suspension, with a helical rib tra…

Study of the Solubility of Silver Bromate Precipitate in Aqueous Solutions of Aluminum and Thorium Nitrates

The study examines how aluminum and thorium nitrates affect the solubility of silver bromate in water at 25 °C over electrolyte concentrations from 0.001 to 1 mol/l. Using gravimetric determination of dissolved silver and calculations based on a Debye-Hückel treatment, the work determines solubiliti…

On the Effect of Electrolytes with Common Ions on the Solubility and Solubility Product of AgBrO3

This study examines how electrolytes with and without a common ion affect the solubility and solubility product of silver bromate at 25 degrees C. The authors measured AgBrO3 solubility in aqueous KBrO3 solutions and in mixed KBrO3 and NaNO3 solutions, comparing these results with earlier data for N…

Measurement of Fracture Surfaces of Steel Rods

This paper proposes a chemical method for estimating the true fracture surface area of steel rods, a quantity difficult to measure directly because fracture surfaces are small and irregular. The method uses copper deposition from copper sulfate onto exposed steel, followed by iodometric titration of…

Floor tiles made from Belolgorsk clays

This paper evaluates the suitability of white and gray semi-acid clays from the Belogorsk deposit for manufacturing floor tiles, including mixtures with fusible blue and brown clays and with chamotte. Experimental bodies were formed by the semi-dry method at varied pressures and 9 percent water cont…

Belogorsk Deposit of Refractory Clays

This paper characterizes the Belogorsk refractory clay areas near Voronovo in Tomsk Oblast and relates them to the broader Voronovo deposit. On the basis of exploration workings, lithological sections, granulometric, mineralogical, chemical, and firing tests, the authors distinguish low-melting brow…

The Effect of Hydrogen Chloride and Its Solutions on Clays of Different Mineralogical Composition

This study examines the chemical and technological effects of hydrogen chloride and soluble chloride salts on clays used in brick production, especially where salts are added to permit molding at subzero temperatures. Using heating experiments, hydrochloric acid treatments, chemical analyses, therma…