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Article
Information Bank of Parametric Data for Controlling the Resource Loading of Elements of Technical Systems of Technological Machines
The formation of an information bank of parametric data as a diagnostic sign of a change in the accuracy of pairing in machine systems has been substantiated. Information about the criticality of the deviation...
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Article
X-ray Reflectometry of Thin Films Formed during Phase Separation of Organic Solutions of Aliphatic Polyethers in Water
The possibilities of X-ray reflectometry for studying the structure of planar liquid-phase membranes are demonstrated by the example of polyester films formed on the surface of deionized water from solutions o...
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Article
Russian Web Tables: A Public Corpus of Web Tables for Russian Language Based on Wikipedia
Corpora that contain tabular data such as WebTables are a vital resource for the academic community. Essentially, they are the backbone of any modern research in information management. They are used for vario...
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Article
Cobalt Triflates [Co(H2O)6](CF3SO3)2 and Co(CF3SO3)2: Synthesis, Crystal Structures, Thermal Stability, and Magnetic Properties
Cobalt triflate hexahydrate [Co(H2O)6](CF3SO3)2 (I) is crystallized from aquos solution. The dehydration of salt I at 200°C in an argon flow affords anhydrous salt Co(CF3SO3)2 (II). The crystal structures of comp...
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Article
Regioselective heterocyclization of mixed phosphonium-iodonium ylides with acetylenes involving dimethyl acetylenedicarboxylate
A new approach to the synthesis of λ5-phosphinolines was developed consisting in the reaction of mixed phosphonium-iodonium ylides with acetylenes in the presence of dimethyl acetylenedicarboxylate as a dipolarop...
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Article
Mathematical Modelling of Friction Winding of Large-Dia Meter Packages on a Translationally Moving Hanger
The article considers the problem of develo** a dynamic and mathematical model of a receivingwinding mechanism for producing large-diameter packages. In the mechanism, the bobbin holder with the package rota...
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Article
Photoemission Properties of a Multialkali Photocathode
The feasibility of studies on the photoemission properties of multialkali photocathodes (MPs) in vacuum photodiodes with two semiconductor electrodes was demonstrated. The photoluminescence and quantum yield s...
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Article
Systematic Errors of Starry Sky Simulators Using Raster Screens
For laboratory tests of the operating cycle of the star sensors of orientation, dynamic stands are designed, which include simulators of the starry sky. Recently, to obtain an image of the starry sky, raster s...
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Article
A novel structural type of conformationally fixed, mixed phosphonium-iodonium ylides based on phenoxaphosphinine
A synthetic approach to a novel type of phosphonium and mixed phosphonium-iodonium ylides containing a conformationally fixed phosphonium fragment is developed. New representatives of these families of chemica...
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Article
An Experimental Device for Studying the 3D Cryoprinting Processes
A device has been developed to study the physicochemical processes of the formation of a structure that occurs during temperature-induced aggregate transitions of liquid and gel compositions during three-dimen...
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Article
Highly Filled Compositions Based on Alginate Gel and Fine Tricalcium Phosphate for 3D Printing of Tissue-Engineered Matrices
In order to obtain hydrogel matrices for bone tissue engineering, the process of formation of highly filled alginate-calcium phosphate structures by 3D printing was developed. Optimal conditions for the format...
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Article
An Apparatus for Research on Processes of Selective Laser Sintering of Powder Materials with High Spatial Resolution
Abstract—An apparatus for selective laser sintering of micron and submicron fraction powders is described. The apparatus allows studies with small volumes of polymer powders, as well as aqueous and alcoholic susp...
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Article
Structure Formation during Phase Separation of Poly(D,L-Lactide)–Tetraglycol–Antisolvent Ternary System
The diffusion and structure formation processes during phase separation of poly(D,L)-lactide solutions in tetraglycol and their antisolvent deposition in aqueous medium are experimentally studied. The effect o...
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Article
Mixed iodonium-, phosphonium-, arsonium-, sulfoniumdiazonium ylides in reactions with nucleophiles
The reactions of mixed ylides containing a diazonium fragment and an "onium" group of different nature with nucleophiles were studied. In the iodonium-diazonium and sulfoniumdiazonium ylide, the nucleophile fi...
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Article
Synthesis, structure, and properties of Schiff base iodobismuthate and its alteration in DMSO solution
New hybrid iodobismuthates (C12H18N2)(BiI4)2 (1, C12H18N2 is N,N´-bis(1- methylethylidene)-1,4-benzоdiammonium dication) and (C6H4(NH3)2) [Bi2I8•2DMSO]•4DMSO (2, C6H4(NH3)2 is p-phenylenediammonium dication) were...
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Article
Endothelialization of Polycaprolactone Vascular Graft under the Action of Locally Applied Vascular Endothelial Growth Factor
We have previously developed a polycaprolactone (PCL) vascular graft with incorporated vascular endothelial growth factor (VEGF). Functioning of the PCL/VEGF graft in rat circulatory system over 1, 3 and 6 mon...
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Article
Polymorphism of Risperidone in Supercritical Fluid Processes of Micronization and Encapsulation into Aliphatic Polyesters
The specific features of the transformation of risperidone polymorphs as a result of micronization and encapsulation into aliphatic polyesters (polylactides and polylactoglycolide) have been studied using supe...
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Article
Open AccessSolar energy converters based on multi-junction photoemission solar cells
Multi-junction solar cells with multiple p–n junctions made of different semiconductor materials have multiple bandgaps that allow reducing the relaxation energy loss and substantially increase the power-conve...
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Article
In situ formation of porous mineral–polymer scaffold for tissue engineering
A principle of three-dimensional printing of composite materials with structure and properties close to natural human tissues was implemented. It was found that the inorganic component, dicalcium phosphate dih...
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Article
Thermal extrusion three-dimensional printing of copolymer polyethylene glycol and poly-ε-caprolactone matrix structures
The process of formation of matrix structures (matrices) from bioresorbable triblock polyethylene glycol and poly-ε-caprolactone copolymers with different molecular weights, as well as their composites with fi...