66,105 Result(s)
within
I. A**enko
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Article
Microstructural Map and Phase Chemical Compositions in Hybrid Multi-component Cast Alloys Fe–W–Mo–V–Cr–Ti–(1.5–3.5 Wt Pct)B–(0.3–1.1 Wt Pct)C
This article presents the systematic data on the effects of carbon and boron on the microstructure and phase elemental composition of the hybrid multi-component alloys, containing (wt pct) 5W–5Mo–5V–10Cr–2.5Ti...
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Article
An ambulatory electrocardiograph with a high-resolution signal recording function
A new hardware/software system for recording high-resolution electrocardiograms is presented. This system is capable of continuous recording of the electrocardiogram throughout the day with a sampling frequenc...
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Article
Equilibrium interphase distribution of chromium depending upon stainless steel slag temperature and basicity
With the aim of studying the occurrence of chromium reduction during argon-oxygen refining using boron oxide as a flux, thermodynamic modelling of the equilibrium interfacial distribution of chromium between s...
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Article
Features of Manufacturing High-Heat-Resistant Ceramics Using Aluminum Hafnium Binder
The manufacturing processes and mechanical properties of ceramics based on fused corundum and an organic aluminum(hafnium binder were studied. Samples of ceramics with the composition Al2O3/HfO2 were prepared. Th...
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Article
Open AccessCardiovascular history and risk of idiopathic Parkinson’s disease: a cross-sectional observational study
Parkinson's disease (PD), while often associated with its distinctive motor symptoms, can also exert a notable impact on the cardiovascular system due to the development of severe autonomic dysfunction. One of...
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Article
Open AccessMachine learning-augmented multi-arrayed fiber bragg grating sensors for enhanced structural health monitoring by discriminating strain and temperature variations
Fiber optic sensors (FOS) in long-term structural health monitoring (SHM) have drawn significant attention due to their pivotal role in detecting defects and measuring structural performance in diverse infrast...
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Article
Tetrahydroquinolines as inhibitors of radical chain oxidation of organic compounds: kinetics and mechanism of action
The effectiveness and mechanism of the antioxidant action of a number of biologically active polysubstituted tetrahydroquinolines in a model reaction of liquid-phase oxidation of 1,4-dioxane have been studied....
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Article
Mechanism of Photodamage of Microbial Cells Sensitized by Indotricarbocyanine Dye
The mechanism of photodamage of E. coli Gram-negative bacterial cells sensitized with indotricarbocyanine dye PK220 was studied upon exposure to radiation from an LED source with emission spectrum maximum wavelen...
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Article
X-Ray Photoelectron and Rutherford Backscattering Spectroscopy of Silicon Hyperdoped with Selenium
The possibility of surface passivation of silicon by hyperdo** with Se and laser annealing was evaluated by x-ray photoelectron spectroscopy (XPS) and Rutherford backscattering spectroscopy. Silicon layers h...
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Article
Temperature Dependence of Optical Reflection Spectra of Cuinse2 Single Crystals with the Chalcopyrite Structure
Resonances of free excitons at energies A ~ 1.0409 eV, B ~ 1.0445 eV, and C ~ 1.2690 eV were detected in reflection spectra of single crystals of the direct-gap compound CuInSe2 at a temperature of 8.6 K. The app...
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Article
Analysis of Methylome of Different Forms of Basal Cell Hyperplasia and Squamous Cell Metaplasia of Bronchial Epithelium
Squamous cell lung cancer (SCLC) occurs as a result of dysregenerative changes in the bronchial epithelium: basal cell hyperplasia (BCH), squamous cell metaplasia (SM), and dysplasia. We previously suggested t...
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Article
Synthesis and Spectral-Luminescent Properties of Light-Accumulating Oxides HfO2–ZrO2
The chemical deposition method was used to synthesize light-accumulating HfO2–ZrO2 oxide systems with afterglow duration up to 10 min and their spectral-luminescent properties were studied. The HfO2:ZrO2 ratio wa...
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Article
Photoluminescence of Low-Density Polyethylene Composites with the CaGa2S4:Eu2+ Phosphor
A study was carried out on the luminescence excitation spectra and photoluminescence (PL) spectra as well as the luminescence kinetics of low-density polyethylene composites with different contents of CaGa2S4:Eu2...
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Article
Characteristics of the Antitumor Effect of Doxorubicin and Pegylated Hyaluronidase on Models of Rat Brain Tumors
Hyaluronidase increases tissue permeability and diffusion of the extracellular fluid by cleaving hyaluronan, the primary component of the extracellular matrix. Hyaluronidase pegylation (Hyal-PEG) decreases its...
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Article
Comparative Morphological and Molecular Genetic Characteristics of Cell and Tissue Strains of Experimental Rat Glioma 10-17-2 (Astrid-17)
In order to obtain models of gliomas of varying degrees of malignancy, we performed morphological and molecular genetic study of a tissue strain of glioma 10-17-2 (Astrid-17) obtained by intracranial passaging...
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Article
Physical and Chemical Peculiarities of Water-Repelling Surfacing of Cement and Concrete Products
The physical and chemical characteristics of hydrophobic protection of cement rock and concrete surfaces, using the binders based on polyurethane, elemental sulfur, and nanodimensional fillers of Tarkosil and ...
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Article
Structural and Electromagnetic Properties of Lithium Ferrite Manufactured by Extrusion Printing
The structure and electromagnetic properties of a lithium ferrite, Li0.5Fe2.5O4, fabricated by an additive manufacturing process based on extrusion printing of ferrite samples with a binder substance followed by ...
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Article
Analysis of Near-Earth Space for the Search of Optimal Orbits for Placement of Satellites
Orbital evolution of model near-Earth space (NES) objects moving in orbits with semi-major axes in the range from 8 000 to 100 000 km is analyzed to reveal the dynamic structure features of this NES region to ...
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Article
Effect of Pore Size on the Mechanical Properties and Deformation Behavior of Porous ZrO2(Y2O3) Ceramics Under Axial Compression
In this work, deformation behavior of porous ceramics ZrO2 – 5.5 wt.% Y2O3 with a different morphology of the pore space under axial quasi-static compression is studied by the method of digital image correlation ...
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Article
Luminescent Properties of Photocured Acrylic Polymer Matrices Containing an Organic Fluorescent Dyad
The luminescent properties of an organic dyad that combines two different luminophores, hydroxy-substituted 2,4,5-triarylimidazole and 8-azomethine-7-hydroxycoumarin, in its molecule have been studied in seven...
