Search

INTRODUCTION. This work continues the authors’ earlier study on gelatine capsule contamination with elemental impurities, which resulted in proposing a list of elements for standardisation. To ensure the safe use of medicinal products in this dosage form, it is necessary to develop criteria for the quantitative assessment of potential human health risks associated with elemental impurities in gelatine capsule shells.AIM. This study aimed to determine the permitted daily concentration (PDC) limits for elemental impurities in gelatine capsules from a risk-based pharmaceutical quality control perspective.MATERIALS AND METHODS. The authors analysed their previous experimental data, the relevant Russian State Standard (GOST), the requirements of the State Pharmacopoeia of the Russian Federation and leading world pharmacopoeias (USA, UK, EU, China, Japan, and India), and the scientific literature published from 1980 to 2023 on the content of elemental impurities (Al, As, Cd, Cu, Cr, Cr, Fe, Hg, Mn, Pb, and Zn) in gelatine capsule shells and medical gelatine.RESULTS. When standardising the content of elemental impurities in gelatine capsule shells, it is necessary to consider not only the toxicity of impurities but also their potential to compromise the quality of gelatine. Complexing elements (Cd, Cu, Hg, Cr, and Zn) can affect the quality of gelatine at subtoxic concentrations. For Cd, Cu, and Hg, the authors recommended using the PDC limits specified in GOST 23058-89 Gelatine. Raw materials for the medical industry. Specifications. For Cr and Zn, the authors recommended adhering to the PDC limits specified in the State Pharmacopoeia of the Russian Federation, edition XIV, Monograph 2.1.0099.18 Gelatine. Lead affects the quality of gelatine at concentrations above the toxicity threshold, and arsenic does not cause clustering of gelatine molecules. For Pb and As, the authors recommended using the PDC limits specified in the State Pharmacopoeia of the Russian Federation, edition XV, General Monograph 1.1.0040 Elemental impurities. The authors proposed a conversion factor to account for the complexing potential of Al when limiting its content in gelatine capsule shells. The authors recommended assessing the risks to human health associated with Mn intake with gelatine capsule shells indirectly by listing total heavy metals as a quality attribute to be controlled at the level of medical gelatine. The content of Fe should also be standardised at the raw material level.CONCLUSIONS. The content of elemental impurities in gelatine capsule shells should not exceed the following limits: 45 µg/g for Al, 1.5 µg/g for As, 0.03 µg/g for Cd, 10 µg/g for Cr, 15 µg/g for Cu, 0.05 µg/g for Hg, 0.5 µg/g for Pb, and 30 µg/g for Zn. The standardisation of these elements in gelatine capsule shells will prevent negative effects on the human body and shell quality.

OpenMC is a state-of-the-art Monte Carlo neutron transport simulation code that uses the Python programming language as an API. OpenMC supports eight burnout simulation algorithms. This study presents the results of choosing an integration method for modeling the burnup of fuel assemblies with burnable poisons for WWER-1000 reactors. Burnout simulation results from OpenMC were compared with those reported in the OECD benchmark. 8 different numerical integrators can be used to model burnout in OpenMC code: PI, CE/CM, LE/QI, CE/LI, CF4, EPC-RK4, SI-CE/LI, SI-LE/QI. The test results showed that the SI-CE/LI, SI-LE/QI integrators require significantly more time to calculate one burnup step than the others with the same accuracy, so they were excluded from further consideration. The PI integrator showed low integration accuracy at the same burnup steps with other integrators. However, PI has a high performance compared to other integrators, and as the integration step decreases, it converges to one solution, which can be chosen as a reference for assessing the quality of other integrators. Based on the results obtained using the fine step PI integrator, it was decided to use the CE/LI integrator for further work. The results obtained with CE/LI were compared with those obtained with the VVER-1000 LEU and MOX benchmark for codes: MCU, TVS-M, WIMS8A, HELIOS, MULTICELL and showed good agreement. Thus, we can conclude the applicability of the CE/LI integrator as part of OpenMC for modeling the burnup of fuel assemblies containing burnable poisons. During the work, the resources of the high-performance computer center of the National Research Nuclear University MEPhI were used.

Introduction. The paper focuses on Gregory Palamas’ criticism of Plato’s ideas. Methods. It examines four texts related to the early life of Gregory Palamas, which in one way or another were devoted to the criticism of Platonic idealism. On the basis of these texts, four points are identified on which the saint disagrees with the Athenian philosopher, or rather with the image of Platonic philosophy that existed in his mind (and probably in the minds of many educated Byzantines of the 14th century). Analysis. In his First letter to Barlaam, Gregory Palamas points out the impurity and passion of Plato’s idea, its contamination by accidental content. In the Second Letter to Barlaam, Plato's ideas are criticized for their inability to become a link in the knowledge of God, since they are “empty” universals that precede many things. Such ideas are not the subject of contemplation and cannot become the beginning of reflection. In the “Triads for the Defense of Those Who Practice Sacred Quietude”, Gregory Palamas first of all points out the independence (autonomy of existence) of ideas, their separation from both God and the world. Finally, in the “Antirretics contra Akindynos”, we are talking about the creaturehood of ideas, which again makes it impossible to communicate with God. Results. The paper argues that although polemical attacks against Plato are attacks rather against the opponents of Gregory Palamas, they can also be considered as a way to manifest his own teaching. Gregory Palamas defines himself as a Christian philosopher who offers an original interpretation of ideas, different from that offered by “pagan”, Platonic, wisdom.

Новый код Монте-Карло под названием OpenMC был разработан Массачусетским технологическим институтом. В данной работе рассматривается проверка детерминированного транспортного кода решетки реактора OpenMC для различных типов тепловыделяющих сборок ВВЭР 1200. Трехмерная полная модель с обогащением по 3 урана 4,95%, 4,0% и 1,3% построена с использованием кода Монте-Карло для переноса частиц OpenMC. Значения эффективного коэффициента умножения () для свежего топлива с двумя конфигурациями топлива и конца жизненного цикла (EOL) выполнены для трех типов ТВС с разным обогащением и выполнены для каждого из девяти случаев; результаты показывают согласование с двумя другими кодами (Serpent и UNK). Значения интегральных параметров, рассчитанные OpenMC, сравнивались с кодом UNK, результат коэффициента диффузии показывает большое относительное отличие от UNK, поскольку метод кумулятивной миграции не реализован в коде OpenMC.

В електромеханічному індукційному прискорювачі циліндричної конфігурації найбільша амплітуда струму в обмотці індуктора виникає при максимальному початковому зсуві, але амплітуда струму в обмотці якоря при цьому найменша. Найбільша величина струму в обмотці якоря виникає при відсутності початкового зсуву. При збудженні від ємнісного накопичувача енергії електродинамічна сила між обмотками має початкову прискорювальну і подальшу гальмівну складові. Внаслідок цього швидкість якоря спочатку зростає до максимально величини, але потім зменшується до моменту закінчення електромагнітного процесу. При збудженні прискорювача від джерела змінної напруги (ДЗН) між струмами в обмотках виникає фазовий зсув, що призводить до почергової зміни прискорювальних і гальмівних складових електродинамічної сили. Прискорювальні складові сили переважають над гальмівними складовими, що забезпечує переміщення якоря. При частоті ДЗН 50 Гц амплітуда струму в обмотці якоря менше, ніж в обмотці індуктора. Зі збільшенням частоти ДЗН фазовий зсув між струмами обмоток зменшується, струм в обмотці індуктора зменшується, а в обмотці якоря збільшується. Прискорювальні складові сили збільшуються, а гальмівні – зменшуються. При підвищенні частоти ДЗН до 500 Гц щільність струму в обмотці якоря перевищує аналогічну величину в обмотці індуктора.

Background. Non-unions of distal femur fractures are difficult to treat and occur in about 6% of cases. Multifactorial causes of fractures non-unions require individual treatment for each patient in accordance with the “diamond” concept. The standard protocol for patients with atrophic non-unions treatment involves bone autografts using, but there are limitations of size, shape, quality and quantity of autografts. Osteoplastic materials with osteoinductive (angiogenic) and osteoconductive activity can be used as bioresorbable implants in combination with autogenous spongy bone in the treatment of extremities long bones non-unions. Clinical case description. A 63-year-old patient was admitted to the clinic for non-union of distal third of the femur with bone defect, fragments were fixed with a plate. The examination revealed plate fracture, screws migration (group III according to the Non-Union Scoring System). The volume of supposed bone defect was about 8.5 cm3. The surgery was performed: plate removal, debridement of the non-union zone, femur defect replacement with a bone autograft in combination with the gene-activated osteoplastic material “Histograft” in a ratio of 1:1, osteosynthesis of the femur with two plates. After 6 months. during the control computed tomography, consolidation was determined (4 points on the REBORNE scale). Pain was practically absent (NRS-2). The range of motion in the knee joint: flexion — 80o, extension — 180o. According to the Knee Society Score (KSS) — 68 points. Conclusion. In this case report the complete fracture fusion was achieved in patient within 6 months — 4 points on the REBORNE scale. No adverse events were observed. It confirms the safety and efficacy of described method and allows to continue the clinical trials.

Purpose. The purpose of the article is to establish the basic laws of operation of induction-type linear electromechanical converter (LEMС) during operation in high-speed and shock-power modes and excitation from an AC source of increased frequency. Methodology. With the help of a mathematical model, the regularities of the course of processes in a LEMС, excited from an AC source, were established when working with shock-power and high-speed modes. The solutions of the equations of the mathematical model, which describe interrelated electrical, magnetic, mechanical and thermal processes, are presented in a recurrent form. Results. It was found that when the LEMC operates in the shock-power mode, the maximum value of the current in the inductor winding occurs in the first half-period, and in the inhibited armature winding in the second half-period. The electrodynamic force changes at twice the frequency, taking on both positive and negative values. Since the positive values exceed the negative ones, the magnitude of the impulse of the electrodynamic force increases with each period of the force. Depending on the initial voltage phase, the relative change in the magnitude of the force impulse is 1.5 %. It was found that when the LEMC operates in high-speed mode, the current in the inductor winding in the first half-period has the greatest value, but after several periods it takes on a steady state. The temperature rise of the inductor winding increases with the time of connection to the AC source, and the temperature rise of the armature winding has the nature of saturation. The electrodynamic force has an oscillatory character with strong damping and a significant predominance of the positive component. Depending on the initial phase of the voltage, the relative change in the maximum speed of the armature winding is 2.5 %. Originality. For the first time, a mathematical model of the LEMC, excited from an AC source, was developed, the solutions of the equations of which describe the interrelated electrical, magnetic, mechanical and thermal processes. For the first time, the regularities of the course of processes in LEMC were established when working with shock-power and high-speed modes. Practical value. The characteristics of LEMC are obtained, which determine the efficiency of work in shock-power and high-speed modes. It is shown that the initial voltage phase has no significant effect on the power, high-speed thermal performance of the converter excited from an alternating current source.

Introduction. In spite of the fact that major researchers of Gregory Palamas’ theology, Robert Sinkewicz and John Demetracopoulos, offered detailed explanations of when and for what ‘The chapters on physics’ of Gregory Palamas were written, it seems that this issue was not finally resolved. Methods. This article, therefore, has two goals. The first is to answer the question why in ‘The chapters on physics’ the polemic against Barlaam and Akindynos, although it occupies a large part of the treatise, is presented as a part of the broader theological and philosophical program of Palamas, and what role does the cosmological part (1–14 chapters) play in the structure of the treatise. In the author’s opinion, such a statement of the question will allow us to understand what Gregory Palamas was guided by when writing the text. The second objective is to offer a social portrait of the addressee of this treatise, delivering some of representatives of the stratum on which the Palamas was oriented. Analysis. In answering the first question, special attention is paid to chapter 81 of the treatise, which, in the author’s opinion, reflects the intent of the entire text, namely, to demonstrate that the logic according to which something indivisible can be thought of as divisible without ceasing to be indivisible, works not only in the case of essence and energy, that is, in theology, but also in cosmology and anthropology. In answering the second question, the focus is on the figure of Matthew Kantakouzenos, who was at the time of writing the treatise in conflict with his father, emperor John VI Kantakouzenos, thereby causing discord in the political party, which at that time was a defender of the ideas of Hesychasm. It was Matthew Kantakouzenos, in the author’s opinion, or the social stratum behind him, who could be the recipients of the treatise. Results. The analysis of the treatise and its historical context shows that it was written largely for political reasons as a program text of Hesychasm, equipped with natural science and philosophical tools, since its recipients were both the broad educated strata of Byzantine society and direct participants in political life in the middle of the 14th century.

Purpose. The aim of the article is to increase the efficiency of linear pulse electrodynamic type converter (LPEC) when operating in high-speed and force modes by reducing the amplitude of the recoil force by exciting its windings with a series of pulses from the capacitive energy storage (CES). Methodology. Using the LPEC mathematical model, in which the equations describing the interconnected electrical, magnetic, mechanical and thermal processes are presented in a recursive form, the electrodynamic and electromechanical characteristics of LPEC are simulated by excitation by a single and a series of pulses from CES sections. Results. It was found that when a single pulse is excited by an LPEC operating in a high-speed mode, in which the armature accelerates the actuator, compared with the force mode in which the armature is inhibited, the current amplitude in the windings decreases by 7.5 %, and the amplitudes of electrodynamic force (EDF) – by 21.8 %, impulse values of EDF – by 27.1 %. In this case, the armature winding with the actuating element accelerates to a speed of 7.1 m/s. When excited by a series of pulses from the same sections of the CES during LPEC operation in the force mode, the amplitudes of the current pulses and the EDF are practically unchanged, and when operating in high-speed mode, the amplitudes of the currents and the EDF gradually decrease. Both in power and in high-speed operating modes, an increase in the number of excitation pulses while conserving the energy of the CES leads to a decrease in the main indicators of LPEC. But by reducing the amplitude of the EDF, which manifests itself as a recoil force, the efficiency of LPEC increases. Originality. It is shown that the excitation of LPEC by a series of pulses increases the efficiency of LPEC when operating in high-speed and power modes, providing a minimum amplitude of the EDF, which determines the recoil force acting on the inductor winding. Practical value. For LPEC operating in high-speed mode, it is proposed to reduce the maximum current amplitudes and EDF due to the sequential increase in capacitances of sections of the CES, forming a series of excitation pulses. For LPEC, operating in force mode, it is advisable to use the same capacities of all sections of the CES.

Coagulopathy always accompanies blood loss, and its transformation into disseminated intravascular coagulation syndrome (DIC) is associated with increased morbidity and mortality.Objective: to characterize the features of the development and course of DIC during bleeding, as well as identify the main predictors of its formation during surgical interventions in children with oncological diseases.Material and Methods. A retrospective study of children under 18 years of age with oncological pathology who received surgical treatment for the period from 2017 to 2019 years. Children who received blood transfusion and hemostatic therapy with intraoperative bleeding were selected. The resulting cohort (n=207) was divided into two groups using the modified ISTH assessment system: children with DIC (n=59), without DIC (n=148). Demographic, clinical, and laboratory factors were compared between groups. The final model of multivariate logistic regression included signs that were before the development of DIC on the second day after the operation and were selected as a result of univariate analysis (P

Purpose. The aim of the paper is to study the influence of geometrical parameters, namely, the number of layers and the cross section of the copper tire of the inductor and the armature coils on the power and speed indicators of a linear pulse electromechanical converter (LPEC) of an electrodynamic type. Methodology. On the basis of the developed chain mathematical model, recurrent relations are obtained for the calculation of interconnected electromagnetic, mechanical and thermal processes of LPEC of an electrodynamic type. The effect of the thickness of a square copper tire and the number of its layers in the inductor and armature coils on the characteristics and characteristics of electrodynamic LPEC is investigated. It is these parameters that determine the number of turns and the axial height of the coils with limited radial dimensions. Results. The influence of the geometrical parameters of the inductor and the armature coils with limited radial dimensions on the electrical and mechanical characteristics of LPEC of an electrodynamic type is established. It has been established that with an increase in the thickness of a rectangular cross-section of copper tire from 1 to 2.5 mm, an increase in the amplitude and pulse of electrodynamic forces (EF) occurs. However, the maximum speed of the armature is the highest at LPEC wound with a 1.5 mm thick tire. The highest efficiency value is demonstrated by LPEC, in which the inductor and armature coils are wound with a 2 mm thick tire. With an increase in the number of layers of the inductor coil tire, the amplitude of the EF decreases significantly, and the magnitude of the EF pulse decreases slightly. As a result, the maximum armature speed, efficiency and temperature rise of the coils are reduced. Originality. It is established that the largest amplitude of the EF is realized in LPEC with the minimum number of layers of tires of the inductor and armature coils. The largest value of the pulse EF occurs when the maximum number of layers of the inductor and the armature. In this case, the largest values of the amplitude and pulse of the EF occur under the condition that the number of tire layers of the inductor and the armature coils are the same. Practical value. It has been established that the greatest efficiency 21.82 % is realized in LPEC, in which the number of tire layers is 2 mm thick with inductor and armature coils are 4. A catapult model for launching an unmanned aerial vehicle was made and tested on the basis of LPEC of an electrodynamic type.

Introduction. Contemporary diagnosis of prostate cancer is crucial to the patient’s further fate. Difficulties in the histological verification of the final diagnosis and false-negative results of biopsy research are often associated with the similarity of the prostate adenocarcinoma`s micromorphological picture and its benign lesions.Purpose of the study. Comprehending the possibilities of immunohistochemical identification of tumor cells and the basal epithelial layer of prostate glandular structures in prostate cancer suspected cases.Materials and methods. A biopsy material was taken from 134 patients. Prostate adenocarcinoma was verified by routine histological examination in 72 samples, in 62 samples there were no signs of malignant transformation. Subsequently, immunohistochemical analysis of biopsy specimens was performed using antibodies to α-methylacyl-CoA racemase, nuclear p63 protein and high-molecular cytokeratin.Results. The AMACR-positive reaction of malignant cells and a negative reaction of the basal epithelium to nuclear p63 protein antibodies and high-molecular cytokeratin were detected during prostate adenocarcinoma.Conclusion. If prostate cancer is suspected, immunohistochemical assays with monoclonal antibodies to AMACR, p63 and high-molecular cytokeratin greatly facilitate the detection of adenocarcinoma.

In the present article, the influence of the activator concentration and impurity content of raw materials on the luminescence and scintillation properties of Li2CaSiO4 was studied. Polycrystalline powder material was obtained by the sol–gel method. It was shown that europium had limited solubility in the host lattice with a limiting concentration proximate to 0.014 formula units. The maximum intensity of photoluminescence was observed with a divalent europium concentration of 0.002 formula units; the light yield under alpha-particle excitation was measured to be 21,600 photons/MeV for ~200 μm of coating, and under neutron excitation, it was calculated to be 103,800 photons/n, the scintillation kinetics was characterized by an effective decay time of 157 ns. These properties and the transparency in the visible spectrum make it possible to produce scintillation screens with a coating of Li2CaSiO4 for detecting neutrons, alpha particles and low-energy beta radiation. The low Zeff (~15) of this compound makes it less sensitive to gamma rays. The 480 nm blue emission peak makes this material compatible with most commercial PMT photocathodes, CCD cameras and silicon photomultipliers, which have a maximum quantum efficiency in the blue–green spectral region.

Patients with COVID-19 can develop pneumonia, severe symptoms of acute respiratory distress syndrome, and multiple organ failure. Nevertheless, the variety of forms of this disease requires further research on the pathogenesis of this disease. Based on the analysis of published data and original experiments on the concentrations of SARS-CoV-2 in biological fluids of the nasopharynx, lungs, and intestines and using a developed modular model of the virus distribution in human tissue and organs, an assessment of the SARS-CoV-2 reproduction in various compartments of the body is presented. Most of the viral particles can transport to the esophagus from the nasopharynx. The viral particles entering the gastrointestinal tract will obviously be accompanied by the infection of the intestinal epithelium and accumulation of the virus in the intestinal lumen in an amount proportional to their secretory and protein-synthetic activities. The relatively low concentration of SARS-CoV-2 in tissues implies an essential role of transport processes and redistribution of the virus from the nasopharynx and intestines to the lungs. The model simulations also suppose that sanitation of the nasopharynx mucosa at the initial stage of the infectious process has prospects for the use in medical practice.

Purpose. The purpose of the paper is to select the main parameters of the linear pulse induction electromechanical converters (LPIEC) for high-speed and power use with the use of the optimization approach, which provides an increase in speed and power indicators with limited electric, thermal and mass-dimensions. Methodology. A technique for finding the maximum of the integral efficiency criterion of LPIEC in the search space using a global optimization method that randomly searches for parameters, preventing entry into a local maximum, and a local method ensuring the contraction of the range of parameters with a global maximum to minimum dimensions is developed. As a global optimization method, genetic algorithms are used, and the Nelder-Mead method is used as the local method. Results. The LPIEC inductor should have a maximum external and minimum internal diameter, and its height should be less than that of the LPIEC of the basic design. The armature should have a maximum outer diameter, and the thickness of its wire should be minimal. The armature should be made with a significantly higher height, a greater number of turns and a wider wire. The height of the LPIEC inductor for power purposes should be almost the same as that of the LPIEC of the basic design. In this case, the number of turns of the inductor and the cross section of its wire should be approximately the same. The armature should be made with a slightly larger inner diameter and a significantly higher height. This armature should have a larger number of turns of wire, which must be stacked in 4 layers, and a large width of the wire. The average energy value and voltage of the capacitive energy storage for the LPIEC for high-speed and power applications should be higher than for the LPIEC of the basic design. Originality. An optimization approach to the choice of LPIEC parameters with a multi-turn squirrel arm is developed, which consists in finding the maximum of an integral efficiency criterion that takes into account the maximum speed and efficiency in a high-speed converter, the amplitude and magnitude of the electrodynamic force pulse in a power converter, with minimum temperature excesses, the mass of active elements and current of the inductor. The optimization uses a chain mathematical model that takes into account the interconnected electrical, magnetic, thermal and mechanical processes of the LPIEC. Practical value. The electric parameters of the capacitive energy storage device and the geometric parameters of the LPIEC are determined, which ensure the largest values of the integral efficiency criterion depending on the adopted version of the efficiency evaluation strategy. In optimized speed and power transfer converters, the integral efficiency criteria are 2.2 times higher on average than in the basic performance of the LPIEC.

Patient’s history with an implanted pacemaker and a myocardial infarction with a coronary­pulmonary fistula of circumflex artery was analyzed. The article discusses the difficulties of diagnosing this pathology and the possibilities of its curative treatment, as well as the experience of its management in the Clinics of Samara State Medical University.

Purpose. The goal of the paper is to determine the influence of the linear pulse electromechanical converter (LPEC) parameters with a double armature on its electrical, power and temperature indices and experimental verification of the proposed design for an information destruction device in a flat SSD storage device. Methodology. Using the mathematical model that takes into account interrelated electrical, magnetic, thermal and mechanical processes, the influence of geometric parameters on the electrodynamic characteristics and the indices of the induction type LPEC with a double armature spanning the inductor from opposite sides is investigated. Results. It is shown that the currents in the inductor and armature change in accordance with the oscillation-damping law practically in antiphase. The maximum value of the current density in the inductor is 215.8 A/mm2, and in each of the identical parts of the double armature it is 299.7 A/mm2. The maximum value of electrodynamic forces (EDF) acting in opposite directions on the front and rear of the double armature is 11.99 kN, and the value of the EDF pulse is 4.59 N∙s. Originality. It is established that with axial removal of the rear part of the armature from the inductor, the maximum current densities in the inductor decrease, in the front part of the armature increase, and in the rear part of the armature decrease. The maximum value and the pulse of the EDF between the armature parts decrease. With an increase in the number of turns in the inductor and a decrease in the thickness of the copper bus, all the basic indicators of the LPEC increase. With an increase in the number of turns of the inductor from 26 to 56, the maximum EDF value acting between the parts of the armature increases almost 3 times, and the magnitude of the EDF pulse is 3.3 times. With an increase in the width of the copper bus and the width of the inductor, the main indicators of the LPEC decrease. With an increase in the width of the inductor from 10 mm to 20 mm, the maximum EDF between the armature parts decreases by 1.3 times, and the value of the EDF pulse decreases by 1.2 times. Practical value. Based on the conducted studies, an induction-type LPEC model with a double armature was designed and tested experimentally, designed to destroy information located on a solid-state digital SSD storage device.

Recommendations on peri-operative infusion-transfusion therapy in children have been developed by the members of Association of Children Anesthesiologists and Emergency Physicians of Russia, possessing significant experience of anaesthesiologic and intensive care provided to children. These recommendations are aimed to provide clear instructions on compilation of peri-operative infusion program in order to reduce the risk of complications related to this in children of various age groups, to enhance efficiency and safety of anaesthesiologic support in general. Recommendations do not include some specific issues of infusion therapy in specialized medical fields.

Purpose. The purpose of the paper is to determine the influence of the height of the mobile and stationary disk electrically conductive armatures covering the movable inductor on the electromechanical processes of linear pulsed-induction electromechanical converter (LPIEC). Methodology. With the help of the developed mathematical model that describes electromechanical and thermal processes of LPIEC, the influence of the heights of the armatures on electromechanical processes, the values of the electrodynamic forces acting on the inductor and armature, and the moving speed of the movable armature (MA) is established. Results. It is shown that if the height of the stationary armature (SA) is twice the height of the MA, then the inductor at the initial instant of time is acted upon by electrodynamics forces pressing it to the SA, and the displacement of the inductor begins with a delay of 0.35 ms. If the height of the MA is twice the height of the SA, then the electrodynamics forces act on the inductor at the initial instant of time, repelling it from the SA, and its movement begins with a delay of 0.1 ms. If the heights of the SA and the MA are equal, then until the time 0.15 ms on the inductor, the electrodynamics forces practically do not act and the inductor moving relative to the SA begins with a delay of 0.25 ms. Originality. The effect of the geometric parameters of the SA and MA on the velocity of the inductor moving relative to the SA, MA relative to the inductor and the MA relative to the SA is established. It has been established that the highest velocity of the MA relative to the SA develops the lowest MA, and the height of the SA does not affect it practically. However, with the increase in the height of the MA, the effect of SA begins to affect. In this case, it is expedient to select the height of the SA to be 0.4-0.42 of the height of the inductor. Practical value. It is shown that as the weight of the actuating element increases, the currents in the active elements of the LPIEC increase, the induction velocities of the inductor relative to the SA and the MA decrease relative to the inductor. At the same time, the maximum the electrodynamic forces values acting on the inductor decrease, and the armatures increase. Moreover, the maximum the electrodynamic forces acting on the MA are less than similar forces acting on the SA.