Sergey Tkachenko
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View article: CLINICAL CASE OF A TYPE 2 MYOCARDIAL INFARCTION IN A PATIENT WITH A MINE-EXPLOSIVE TRAUMA IN THE PRACTICE OF A PHYSICIAN OF FUNCTIONAL DIAGNOSTICS IN A MILITARY HOSPITAL
CLINICAL CASE OF A TYPE 2 MYOCARDIAL INFARCTION IN A PATIENT WITH A MINE-EXPLOSIVE TRAUMA IN THE PRACTICE OF A PHYSICIAN OF FUNCTIONAL DIAGNOSTICS IN A MILITARY HOSPITAL Open
In the actual conditions of active hostilities physicians of the military hospitals have to deal with a significant number of patients with mine-explosive traumas and nowadays this issue is particularly urgent. A mine-explosive trauma can …
View article: Continuous-flow synthesis of the naphthalimide derivatives for medical and engineering applications
Continuous-flow synthesis of the naphthalimide derivatives for medical and engineering applications Open
Microfluidic technologies bring new tools for a large number of applications in chemistry, biology, and medicine. In this study, we for the first time demonstrated the systematic synthesis and optimisation of naphthalimide derivatives usin…
View article: Patient-Reported Outcome Measures in Atopic Dermatitis and Chronic Urticaria Are Underused in Clinical Practice
Patient-Reported Outcome Measures in Atopic Dermatitis and Chronic Urticaria Are Underused in Clinical Practice Open
Although PROMs offer several benefits, their use in routine practice is suboptimal, and physicians perceive barriers to their use. It is essential to attain higher levels of PROM implementation in accordance with national and international…
View article: New Hybrid Ethylenediurea (EDU) Derivatives and Their Phytoactivity
New Hybrid Ethylenediurea (EDU) Derivatives and Their Phytoactivity Open
Natural and synthetic phytohormones are widely used in agriculture. The synthetic cytokinin ethylenediurea (EDU) induces protection in plants against ozone phytotoxicity. In our study, new hybrid derivatives of EDU were synthesized and tes…
View article: Fluorescent-tagged antiscalants as a tool of homogeneous membrane scaling mitigation and inhibition mechanism investigation in electrodialysis processing of solutions prone to calcium sulfate precipitation
Fluorescent-tagged antiscalants as a tool of homogeneous membrane scaling mitigation and inhibition mechanism investigation in electrodialysis processing of solutions prone to calcium sulfate precipitation Open
The application of antiscalants (ASs) is a widely used method for scale inhibition in various water treatment technologies, being economically sound and rather simple in terms of technical implementation.However, despite its advantages, th…
View article: The efficiency of protection of structural steel by cationic inhibitor under conditions of corrosion with bacterial sulfate reduction
The efficiency of protection of structural steel by cationic inhibitor under conditions of corrosion with bacterial sulfate reduction Open
The effectiveness of protecting a structural steel by cationic inhibitor against biocorrosion caused by Desulfovibrio sp. М-4.1, Desulfomicrobium sp. TC 4, and sulfidogenic microbial communities was investigated by using gravimetric and el…
View article: Calcium Sulfate Crystallization in Presence of Fluorecent-Tagged Polyacrylate and Some Refinement of Scale Inhibition Mechanism
Calcium Sulfate Crystallization in Presence of Fluorecent-Tagged Polyacrylate and Some Refinement of Scale Inhibition Mechanism Open
Deposits of calcium sulfate scale on the surfaces of industrial equipment in distillation facilities, reverse osmosis desalination plants, in oil and gas industries lead to significant clogging of pipes and membranes and to a serious incre…
View article: Fluorescent-Tagged Antiscalants—The New Materials for Scale Inhibition Mechanism Studies, Antiscalant Traceability and Antiscaling Efficacy Optimization during CaCO3 and CaSO4·2H2O Scale Formation
Fluorescent-Tagged Antiscalants—The New Materials for Scale Inhibition Mechanism Studies, Antiscalant Traceability and Antiscaling Efficacy Optimization during CaCO3 and CaSO4·2H2O Scale Formation Open
Equipment scaling leads to reduced production efficiency in a wide range of industrial applications worldwide. Various antiscaling agents are currently commonly used to mitigate this problem. However, irrespective of their long and success…
View article: Application and Visualization of Fluorescent-Tagged Antiscalants in Electrodialysis Processing of Aqueous Solutions Prone to Gypsum Scale Deposition
Application and Visualization of Fluorescent-Tagged Antiscalants in Electrodialysis Processing of Aqueous Solutions Prone to Gypsum Scale Deposition Open
Membrane scaling is a serious problem in electrodialysis. A widely used technique for controlling scale deposition in water treatment technologies is the application of antiscalants (AS). The present study reports on gypsum scale inhibitio…
View article: A Case Study of Calcium Carbonate Crystallization during Reverse Osmosis Water Desalination in Presence of Novel Fluorescent-Tagged Antiscalants
A Case Study of Calcium Carbonate Crystallization during Reverse Osmosis Water Desalination in Presence of Novel Fluorescent-Tagged Antiscalants Open
Calcium carbonate scaling in reverse osmosis (RO) desalination process is studied in the presence of two novel fluorescent-tagged scale inhibitors 1,8-naphthalimide-tagged polyacrylate (PAA-F1) and 1-hydroxy-7-(6-methoxy-1,3-dioxo-1H-benzo…
View article: Synthesis and Visualization of a Novel Fluorescent-Tagged Polymeric Antiscalant during Gypsum Crystallization in Combination with Bisphosphonate Fluorophore
Synthesis and Visualization of a Novel Fluorescent-Tagged Polymeric Antiscalant during Gypsum Crystallization in Combination with Bisphosphonate Fluorophore Open
An attempt to reveal the mechanisms of scale inhibition with the use of two different fluorescent-tagged antiscalants at once is undertaken. To reach the goal, a novel 1,8-naphthalimide-tagged polyacrylate (PAA-F2) is synthesized and teste…
View article: Gypsum Crystallization during Reverse Osmosis Desalination of Water with High Sulfate Content in Presence of a Novel Fluorescent-Tagged Polyacrylate
Gypsum Crystallization during Reverse Osmosis Desalination of Water with High Sulfate Content in Presence of a Novel Fluorescent-Tagged Polyacrylate Open
Gypsum scaling in reverse osmosis (RO) desalination process is studied in presence of a novel fluorescent 1,8-naphthalimide-tagged polyacrylate (PAA-F1) by fluorescent microscopy, scanning electron microscopy (SEM), dynamic light scatterin…
View article: Analysis of an Iterative Approach to Determine the Current on the Straight Infinite Wire Above Ground
Analysis of an Iterative Approach to Determine the Current on the Straight Infinite Wire Above Ground Open
An iterative approach which was recently applied to approximate the reflection and scattering coefficients of transmission line ports is analyzed. The iterative solution for the current on an infinite wire above ground is compared to the e…
View article: Singularity Expansion Method for thin wires and the Method of Modal Parameters
Singularity Expansion Method for thin wires and the Method of Modal Parameters Open
Here, we describe a technique to define the Singularity Expansion Method (SEM) poles for short-circuited thin-wire structures developed using the Method of Modal Parameters (MoMP). The MoMP method consists of in the expansion of the system…
View article: Calculation of High-Frequency Electromagnetic Field Coupling to Overhead Transmission Line Above a Lossy Ground and Terminated With a Nonlinear Load
Calculation of High-Frequency Electromagnetic Field Coupling to Overhead Transmission Line Above a Lossy Ground and Terminated With a Nonlinear Load Open
High-frequency electromagnetic fields such as those associated with electromagnetic pulse (EMP) and intentional electromagnetic interference (IEMI) can couple to overhead power lines. Since the height of the overhead power lines can be com…
View article: Peculiarities of the effect of secondary amines with cyclic substituents on microbial steel corrosion
Peculiarities of the effect of secondary amines with cyclic substituents on microbial steel corrosion Open
The effect of secondary amines with cyclic substituents (triazoloazepine, unsubstituted phenyl or substituted phenyl ones) on the microbial corrosion of low-carbon steel induced by sulfatereducing bacteria isolated from various technogenic…
View article: Propagation of current waves along a transmission line with randomly located non-uniformities inside a rectangular resonator
Propagation of current waves along a transmission line with randomly located non-uniformities inside a rectangular resonator Open
In this paper, we investigate the propagation of high-frequency current waves along a stochastic transmission line inside a rectangular cavity using as basis the model of a transmission line with the symmetry of the resonator. The stochast…
View article: Advanced Modeling in Stochastic Computational Electromagnetics
Advanced Modeling in Stochastic Computational Electromagnetics Open
The tremendous development of digital computers in the last decades has provided continuous improvement of various sophisticated methods in computational electromagnetics (CEM). CEM analysis methods provide results within an appreciably sh…
View article: Propagation of Current Waves along Randomly Located Multiconductor Transmission Lines inside a Rectangular Resonator
Propagation of Current Waves along Randomly Located Multiconductor Transmission Lines inside a Rectangular Resonator Open
Propagation of current waves along randomly located multiconductor transmission lines inside a rectangular resonator is investigated. Two different line configurations are considered: parallel wires and perpendicular lines. The analytical …
View article: Application of the Singularity Expansion Method (SEM) for Multiconductor Transmission Lines
Application of the Singularity Expansion Method (SEM) for Multiconductor Transmission Lines Open
SCI-STI-FR
View article: The physical meaning of transmission-line parameters in a full-wave theory
The physical meaning of transmission-line parameters in a full-wave theory Open
In the potential-current representation, transmission-line parameters in the Transmission-Line Super Theory (TLST) do not have a direct physical meaning – they are gauge dependent, i.e.: they are different in the Lorenz and Coulomb gauge. …
View article: Electromagnetic field coupling to transmission lines: A model for the risers
Electromagnetic field coupling to transmission lines: A model for the risers Open
In this paper, an improved model of the vertical risers of a transmission line is proposed and validated. The proposed improved model, which can be readily implemented in the frame of a classical transmission line formulation, provides acc…
View article: Transient Electromagnetic Field Coupling to Buried Thin Wire Configurations: Antenna Model versus Transmission Line Approach in the Time Domain
Transient Electromagnetic Field Coupling to Buried Thin Wire Configurations: Antenna Model versus Transmission Line Approach in the Time Domain Open
The paper examines the antenna model for the transient analysis of electromagnetic field coupling to straight wire configurations buried in a lossy half-space. The wire antenna theory (AT) model is implemented directly in the time domain a…
View article: Application of transmission-line super theory to classical transmission lines with risers
Application of transmission-line super theory to classical transmission lines with risers Open
By applying the Transmission-Line Super Theory (TLST) to a practical transmission-line configuration (two risers and a horizontal part of the line parallel to the ground plane) it is elaborated under which physical and geometrical conditio…
View article: Energy conserving coupling through small apertures in an infinite perfect conducting screen
Energy conserving coupling through small apertures in an infinite perfect conducting screen Open
Apertures in shielding enclosures are an important issue for determining shielding efficiencies. Various mathematical procedures and theories were employed to describe the coupling between the regions connected via an aperture in a well co…