Technological Regimes Research Articles

ON IMPROVEMENT OF ENVIRONMENTAL INDICATORS OF THE KHARKIV MOTORWAY SECTION

Nowadays, on the territory of large cities, there is an increase in emissions of harmful substances into the atmosphere. The reasons for this are manifold: violation of design technological regimes, outdated equipment, an increase in the volume of road transport. The constantly growing intensity of traffic flows is annually accompanied by an increase in the anthropogenic load on the population of modern cities. With the increase in the number of vehicles on the streets of large cities, the world community has identified noise as one of the main factors that worsen the standard of living of people. To assess the noise pollution of the environment by road transport, a typical area of the urban area in the Kharkiv micro district was chosen. The study consisted of four main stages: Stage I – assessment of the road condition and environmental situation in the courtyards of the micro district; Stage II – assessment of acoustic pollution of the main area; Stage III – assessment of the concentration of pollutants; Stage IV – measures to reduce the level of environmental hazard. The study revealed that residential areas around Gagarin Avenue are prone to high noise levels and high concentrations of pollutants in the air. So, Gagarin Avenue is in the zone of acoustic discomfort (noise level 80 dBA), which exceeds the permissible noise level, while the degree of man-made impact on the environment during road operation is 1000 UAH / hour for every 100 people. Based on the results of calculations of the concentrations of pollutants from vehicles along Gagarin Avenue, it was found that for almost all substances their concentrations exceed the MPC by more than 3 times. Analysis of the experience of European countries in the use of noise protection screens with integrated solar panels allowed us to propose a model of noise protection barrier with integrated solar panels, which can be used to protect the urban environment from noise, sound waves and exhaust chemicals. gases from internal combustion engines. It has been established that the placement of a combined noise protection screen will reduce the noise level by about 8–15 dBA. Noise load maps were built in the main area before and after the implementation of the environmental measure. The results of the study will make it possible to introduce administrative and legislative measures to ensure regulatory noise levels for residential areas adjacent to highways and environmental safety when organizing traffic on the streets of large cities.

Technological regimes or “perceived” technological regimes? Evidence from the Italian wine industry

PurposeTechnological regimes define the environment in which innovative and learning activities take place in each sector of the economy. In this paper, the authors argue that technological regimes must be interpreted and elaborated by each organisation operating within a sector in order to be implemented rationally, which leads us to the concept of perceived technological regimes.Design/methodology/approachThe authors tested the relevance of firms' perceptions of different technological regimes on a sample of wine companies in Italy. The authors run a questionnaire survey and obtained 334 clean responses. Data drawn from questionnaires were analysed via econometric analysis.FindingsThe authors present empirical evidence that this perception tends to vary across different wine technologies. Additionally, the authors find evidence that firms' technology adoption, absorptive capacity and external knowledge sourcing have a strong impact on their perceptions of the relevance of a given wine-making technology.Originality/valueWhile individual technological regimes are characterised by systematic differences in the distribution of heterogeneous firm types, previous empirical studies have not explored whether the technological environment defining a given industry is differently interpreted and elaborated by each firm operating in it.

ANALYSİS OF THE İMPACT OF PHYSİCAL AND CHEMİCAL FEATURES OF THE NATURAL GAS TO THE PARAMETERS OF THE GAS TRANSPORT SYSTEM

Definition of the technological regimes of the natural gas transportation system is co-related with the physical and chemical features of the gas. The results of the chemical analyses of gas in the gas turbine compressor station are laid out in the article: various levels of changes of the composition of gas at various points are described. Technological losses of gas are determined, as the result of change in its specific weight in the process of compression, cooling down and separation at the compressor station. Gas losses in the sub water main gas pipelines are analyzed. Changes of the content of the gas carbonate in the composition of the gas are analyzed, its degradation alongside the pipeline and existence of the CO2 in the composition of the low-pressure oil associated gas is described in comparison with the high-pressure natural gas, which is 3,8 times more. The problems, caused by the presence of the gas carbonate in the composition of the natural gas, are highlighted. The physical properties of natural gas are characterized by its specific gravity, temperature, pressure, volume and other parameters, and chemical properties by its composition, stability of gas-forming components. It should be noted that the physical and chemical properties of gas vary within certain limits, depending on the time, both on the reservoir and on the same reservoir. Therefore, in order to regulate the parameters of the gas transportation system, it is necessary to periodically examine and take into account the physical and chemical properties of the gas. Keywords: Natural gas, carbon dioxide,compressor station, gas pipeline, gas well.

IMPLEMENTATION OF ELECTRONIC DEVICES OF CMOS FULL ADDER IN LOW POWER VLSI CIRCUITS

Battery-powered devices (for example, mobile phones, digital personal aids, etc) are increasing on the mobile electronic systems market by developing microelectronic circuits with low energy dissipation. The problem of dissipating power could limit the flexibility of the computer system, as the chip’s density and complexity keep on increasing. The power supply consumes approximately 35% of the chip power, particularly at the nanometer level. The purpose of this project is to investigate the efficiency of one of the most reliable low power concepts called Power Gating. It is only nanometer-scale CMOS devices that are the most common technology in existing VLSI systems. Leakage power has become an integral component of total power in the nanometer technology regime. The ALU’s basic feature unit is Full Adder. The electricity consumption of an ALU is decreased by decreasing the energy consumption of an ALU, and an ALU will reduce the power consumption by decreasing the total power consumption. So these days, the complete adder designs are becoming more common with low power characteristics. The proposed project shows the concept of the micro wind tool for low power less transistors.

Analysis of Multiple Indicators of Ion Nitrided Layers of BH11 Steel

In modern scientific and engineering expertise there are a few methods for graphical computational analysis related to decision making. However, few of them are devoted to materials science and the determination of the complex of properties separately and simultaneously. This research proposes a decision analysis approach tested for the basic properties of BH11 steel. With the help of the approach the tendencies as technological regimes in the change of the microhardness Hv, the relative wear resistance Kv and the connected nitride zone δnz are established. A model for the phase composition is derived, which interprets all observed trends and technological regimes for the relatively minimal and relatively maximal studied values. Thus, the efficiency of the technology in processing the considered steel is associated with the structure and properties of ion nitrided layers, which as a research is the main task of materials science.

Activation energy distribution in thermal quenching of exciton and defect-related photoluminescence of InP/ZnS quantum dots

Thermal quenching is one of the essential factors in reducing the efficiency of radiative processes in luminophores of various nature. The emission activity of low-dimensional structures is influenced also by multiplicity of parameters that are related to synthesis processes, treatment regimes, etc. In the present work, we have investigated the temperature dependence of photoluminescence caused by exciton and defect-related transitions in ensembles of biocompatible InP/ZnS core/shell nanocrystals with an average size of 2.1 and 2.3 nm. The spread in the positions of energy levels is shown to be due to size distribution of quantum dots in the ensembles under study. For a quantitative analysis of the experimental data, we have proposed a band model accounting for the Gaussian distribution of the thermally activated barriers in the photoluminescence quenching processes. The model offers the thermal escape of an electrons from the core into the shell as the main mechanism for non-radiative decay of excitons. In turn, the quenching of defect-related emission is predominantly brought about through the emptying of the hole capture centers based on dangling phosphorus bonds. We have revealed the correlation between size distributions of quantum dots and scatter of the activation energy of exciton luminescence quenching. The developed approach will give further the possibility to optimize technological regimes and methods for band engineering of indium phosphide-based type-I quantum dots.

Influence of the firing temperature on the dielectric properties of ceramics based on barium titanate

The object of the research is the firing temperature of ceramic materials based on barium titanate. In laboratory conditions, barium titanate was synthesized from raw materials of barium carbonate and titanium dioxide using ceramic technology, taking into account the stoichiometric composition of the compound. In order to study the effect of the firing temperature on the properties of the ceramic material, three temperatures were selected: 1270, 1300, and 1350 °C. The physical properties of the samples (imaginary density, water absorption, open porosity) were determined by the method of hydrostatic weighing in water. The samples were saturated with water after their preliminary evacuation. The dielectric characteristics of the obtained materials were measured on an E7-8CLR automated device (Ukraine) at a frequency of 1 kHz. The structural and morphological features of ceramics based on synthesized barium titanate were investigated by direct scanning electron microscopy and X-ray phase analysis. On the basis of the complex of studies carried out, the technological parameters of the production of ceramics were selected. Thus, the duration of grinding at the first and second stages is 10 and 30 minutes; moisture content of the press powder – 8 %; pressing pressure – 20 MPa; temperature of the first firing – 1000 °С; temperature of the second firing – 1350 °C. The regularity of the change in the dielectric constant on the firing temperature of ceramics based on barium titanate was established. The investigated samples, obtained according to the given technological regime, are characterized by the following indicators: dielectric constant – 259.9; open porosity – 0.02 %; water absorption – 0.01 %; imaginary density – 5.45 g/cm3. The resulting material can be used to create composite ceramic materials that protect biological and technical objects from the effects of electromagnetic radiation, and can also be used to create new functional materials for space, aerospace, electronic engineering and medicine.

Distributional effects of technological regime changes: hysteresis, concentration and inequality dynamics

In this paper, we study the effect of different types of technological regime changes on the evolution of industry concentration and wage inequality. Using a calibrated agent-based macroeconomic framework, the Eurace@Unibi model, we consider scenarios where the new regime is characterized by a finite time period of more frequent respectively more substantial changes in the frontier technology compared to the old regime. We show that under both scenarios, the regime change leads to an increase in the heterogeneity of productivity in the firm population and to increased market concentration, where effects are much less pronounced if the new regime differs from the old one with respect to the frequency of innovations. If the new regime is characterized by an increase of the size of the frontier jumps along the technological trajectory, the evolution of the wage inequality has an inverted U-shape with a large fraction of workers profiting in the very long run from high wages offered by dominant high-tech firms. Finally, it is shown that (observable) heterogeneity of worker skills plays an important role in generating these dynamic effects of technological regime changes.

The Technicity of Blackness: On Failures and Fissures in the Art of Sondra Perry

Sondra Perry’s diverse video and installation practice explores the joy and labor of survival in the aftermaths of colonial expansion and the commodification of human beings, a history she traces from the transatlantic slave trade through contemporary digital profiteering. Across these lines of inquiry, Perry interrogates the failure of film and digital animation to correctly render the Black subject, even as such representational technologies are deployed in the hypersurveillance of blackness. Sociologist Simone Browne has described this contradiction as “black luminosity,” a light that simultaneously illuminates and conceals, producing a condition that Ralph Ellison once called un-visibility. Perry’s practice warns us that black luminosity cannot be solved with better imaging; there is no representational light that might finally see Black subjectivity. Instead, Perry’s work suggests that un-visibility emerges from a systemic failure of the technologies of vision, wherein her Black body operates as a built-in point of inefficiency—and, potentially, refusal. Perry situates her body’s digital inefficiency within the long history of transforming the violence of un-visibility into a strategy of resistance against the regimes of power and technology. In so doing, she approaches blackness as a technology, a tool that can produce both failure and possibility, a method for imagining new ways of being.

Transient Analysis of Crosstalk Noise Effects in SWCNT Bundle On-Chip Interconnects Using MRTD Technique

Carbon nanotube bundles are being considered as a potential on-chip interconnect replacement for conventional copper on-chip interconnects in the nanoscale regime of recent IC technology. This paper analyzes the signal integrity analysis of CMOS gate-driven single-walled carbon nanotubes (SWCNTs) bundle on-chip interconnects. The wavelet-based numerical model Multiresolution Time Domain (MRTD) method is used for the transient analysis of SWCNTs bundles on-chip interconnects. The proposed MRTD model is used to perform transient analysis for parameters of signal integrity, peak crosstalk, and propagation delay estimations. The obtained results of the proposed MRTD model are compared with those of the conventional Finite Difference Time Domains (FDTD) model and it is validated with SPICE simulator at 32 nm technology node and also compared with multiwalled CNT (MWCNT) interconnects at 22 nm. The MRTD model results show excellent agreements to SPICE with less than 0.41% error. The elapsed CPU runtimes for the MRTD model are significantly less compared to SPICE. The MRTD model is used to interconnects the model with two and three lines and can be extended to an M-coupled line. The results of the proposed model are closely matched to those of SPICE simulations.

TO CALCULATE THE LOADING OF KNITTING NEEDLES OF AUTOMATIC HALF-HOSE MACHINES

An important link in the analysis of the longevity of details by the criterion of fatigue strength is the calculation of parameters that take into account the peculiarities of the technological regime in terms of load and the corresponding number of cycles that affect the accumulation of fatigue failure. The final range of loads of knitting needles of automatic half-hose machine was based on the systematization of amplitudes of forces depending on the frequency of their implementation. Previous works has assumed the assumption of a one interaction of the needle heel with the cams, which is experimentally refuted by the example of modern high-speed automatic half-hose machine. The aim of the work is to adjust the provisions of calculating the load of knitting needles of half-hose machines for design estimate of longevity, taking into account the specific features of the impacts of needles with the cams of the knitting system, which affect the total number of load cycles. The condition of rupture of the contact in the pair of the needle heel and the inclined cam after their impact is considered, taking into account the inertial and rigid parameters of the system, including the resisting force of the needle in the groove of the cylinder. According to the results of the dynamic analysis, the expressions of the minimum speed at which the needle can rebound from the cam and the vertical component of the needle rebound speed at the moment of its separation from the cam are obtained. The analysis of the influence of the force of resistance of the needle movement in the race on the vertical speed of the needle is performed. The issue of the bounce of the heels of unselected needles from the lower edge of the inclined cam due to their inertial run-out was studied separately. It is established that at certain circular speeds of the needle cylinder leads to additional impacts of the needles with the horizontal limiting cams and increases their destruction. The results of studies of the possible rebound of the needle heel from the inclined cam and the interaction of the needle with the limiting horizontal cams are a supplement to the method of calculating the loading of needles and are aimed at improving the accuracy of design longevity of needles.

Technological regimes and catching up in the product space

Abstract This article proposes a micro-founded model of countries’ diversification trajectories in the product space. We argue that the type of technological regime under which countries operate conditions their export performance and diversification trajectories. In particular, repeated simulations show that countries with firms operating under an entrepreneurial regime expand their export basket faster when most other countries are characterized by a routinized regime. Simulations also show that catching-up trajectories in the product space are less likely when all countries operate under the same technological regime.

ANALYSIS OF THE WORK OF SEWAGE TREATMENT PLANTS IN LYANTOR CITY, TYUMEN REGION

Background Lyantor city (the city status was obtained in 1992) is located on the territory of one of the largest fields in Russia - the Lyantor oil and gas condensate field. Sewage treatment plants (STP) were built and put into operation in the period 1987-1989, the project provides for 2 stages of construction with a total capacity of 14,000 m3/day. STP includes mechanical, biological treatment, disinfection of treated wastewater at an ultraviolet installation and treatment of precipitation at filter presses. The volume of wastewater received for treatment is 35 % of the design capacity of STP -14000, which is due to the general trend of reducing wastewater costs in recent years (the use of water-saving technologies, the use of water metering devices, production reduction, etc.). Municipal Unitary Enterprise «Management of Heat Supply and Sanitation», Lyantor, in order to optimize costs and comply with the technology of biological wastewater treatment in 2012 brought one of the queues (7000 m3/day) to conservation. To date, the degree of purification of wastewater discharged into the Pim River does not meet modern regulatory requirements. In order to improve the reliability, quality and environmental safety of the city's wastewater treatment, a technological audit was conducted in December 2019. During the audit, a survey of working sewage treatment plants was conducted, taking into account the information obtained in the operating laboratory on the territory of the STP. Aims and Objectives The aim of the work is to analyze the work of sewage treatment plants of the city on the basis of data obtained during a technological audit, to identify the causes of violations of wastewater treatment technology, to develop recommendations for improving the operation of the water treatment plant and bringing the degree of wastewater treatment to the regulatory requirements for discharge into the reservoir. Results The main factors affecting the wastewater treatment process are identified, the reasons for the violation of the technological treatment regime are identified, and recommendations are developed for intensifying the operating mode and taking measures to bring the STP to the normative characteristics of wastewater treatment. According to the results of the survey of the technological wastewater treatment system, it was concluded that the existing scheme is not able to provide wastewater treatment to the required standards and there is no technical possibility to bring the quality of treatment on the existing equipment to the standard values. It is shown that for high-quality treatment of domestic wastewater, it is necessary to perform reconstruction with a change in the technological scheme of treatment or the construction of new sewage treatment facilities based on modern technologies for biological nitrogen removal, biological and chemical phosphate removal and precipitation treatment. The recommended measures can serve as a material for promising solutions to improve the operation of treatment facilities in the process of developing an investment program for the development of the city's wastewater disposal system, as well as be the basis for developing a project for the reconstruction (construction) of existing STP.

Pre-Entrepreneurs’ Perception of the Technology Regime and Their Entrepreneurial Intentions in Korean Service Sectors

Startups and established firms in service sectors mostly fall into the supplier dominated or information intensive categories of Pavitt’s taxonomy. Entrepreneurs in these categories are not isolated from the technological environment because they can also be innovative (at least) by adopting technologies from outside. However, it has hardly been studied whether the entrepreneurial intention of pre-entrepreneurs in service sectors can be influenced by how they perceive technological environment. In this paper, using the theory of the planned behavior and technology regime, we examined the role of pre-entrepreneurs’ perception of the technology regime (opportunity, accessibility, and cumulativeness) on the formation of entrepreneurial intention in Korean service sectors. The results show that pre-entrepreneurs’ perception of the technology regime influences entrepreneurial intention via personal attitude and perceived behavioral control. Opportunity influenced personal attitude and subjective norm; accessibility influenced personal attitude, subjective norm, and perceived behavioral control; and cumulativeness influenced personal attitude and perceived behavioral control. Personal attitude and perceived behavioral control influenced entrepreneurial intention.

Reinforced Composite Polymer in Automotive Industry : A Review

Modern era is witnessing tremendous move on in discipline of Science and technology. Near has been provocation of notice in Reinforced Composite Polymer (RPC’s) in a range of regime of technology. Broad study is want of hour in line of work of composite fibers anticipated to innovation of new technology and necessitate of advance accomplishment from open material. RPC’s are emerging environment pleasant materials as they container be recycled thermally without posing any menace to environment and originates from renewable sources. They have become a viable alternatives to existing employed carbon fibers polymers having disastrous effect on environment and having limited workability as well as cumbersome disposal. RPC’s have remarkable properties of impact toughness and Fatigue Strength. This is due to their partial brittle structure comprising of ductile and tough matrix interfolded with strong as well as brittle binder. RPC’s have encompassed almost every sphere of automobile industry and are widely used in interior parts, bonnets design and fabrication of accessories as well as in providing insulation platform in automobiles.

Design Beku: Toward Decolonizing Design and Technology through Collaborative and Situated Care-in-Practices

Increasingly there is a design impulse to “solve” problems for communities in India, especially through technological imaginations and interventions imported from elsewhere that are often irrelevant and unsuited to their context. As public goods, such as education, heritage, health care, and the like, in India shift from ideals of social equity to profit-making, designers engaged in “development” face an important question about their role in the change-making process, with ethical and political implications. In response to this question, we describe our efforts as a newly formed collective, Design Beku, which emerged from our desire to explore if and how technology and design can be decolonial, local, and ethical. Informed by cross-disciplinary theoretical and methodological underpinnings, we present a series of autoethnographic accounts by the collective’s founding members, woven together to describe our experiences, influences, learnings, and reflections on the life of the collective so far. Through articulating the commonalities and differences across our projects, we highlight how co-design becomes for us a care-in-practice, an onto-epistemology enabling us to align with local matters of concern to collaboratively evolve systemic solutions, enabled by but not led by technology. We believe the most powerful critique and challenge to the fascism of corporate and politically motivated technological regimes is by responding through community-centric design practice. We hope that our experiences and reflections will find resonance with other practitioners working within the larger context of the themes articulated by the call for this special issue.

Transitioning to sustainability by rejuvenating industries

This article aims to understand how industries transition to sustainability by taking the case of natural resource depletion. For this purpose, by building on the literature on technological regimes and industry emergence, we study the process through which entrepreneurs have shifted the technology used within three given industries for sustainable purposes. We refer to this process as industry rejuvenation, which we define as the process through which sustainable entrepreneurs construct a new resource combination and then establish it by concomitantly reshaping the value of resources and reconstructing the industry. In doing so, this article offers an industrial perspective on grand challenges and introduces the concept of industry rejuvenation.

Investigation of gas gathering pipelines operation efficiency and selection of improvement methods

Purpose: The article implies theoretical and experimental studies of the liquid pollution accumulations impact on the efficiency of gathering gas pipelines operation at the Yuliivskyi oil and gas condensate production facility (OGCPF). Research of efficiency of gas pipelines cleaning by various methods. Design/methodology/approach: The research methodology consists of determining the hydraulic efficiency of gathering gas pipelines before and after cleaning of their internal cavity by different methods and comparing the obtained results, which allows to objectively evaluate the efficiency of any cleaning method. CFD simulation of gas-dynamic processes in low sections of gas pipelines with liquid contaminants. Findings: Experimental studies of cleaning efficiency in the inner cavity of the gas gathering pipelines of the Yuliivskyi OGCPF by various methods, including: supply of surfactant solution, creating a high-speed gas flow, use of foam pistons were performed. It was established that cleaning the inner cavity of gas gathering pipelines by supplying a surfactant solution leads to an increase in the coefficient of hydraulic efficiency by 2%-4.5%, creating a high-speed gas flow by 4%-7%, and under certain conditions by 8%-10 % and more. However, for two gas pipelines the use of foam pistons allowed to increase the coefficient of hydraulic efficiency from 5.7 % to 10.5 % with a multiplicity of foam from 50 to 90. be recommended for other deposits.The results of CFD simulation showed that the accumulation of liquid contaminants in the lowered sections of gas pipelines affects gas-dynamic processes and leads to pressure losses above the values provided by the technological regime. With the increase in liquid contaminants volume the pressure losses occur. Moreover, with a small amount of contamination (up to 0.006 m3), liquid contaminants do not have a significant effect on pressure loss. If the contaminants volume in the lowered section of the pipeline is greater than the specified value, the pressure loss increases by parabolic dependence. The increase in mass flow leads to an increase in the value of pressure loss at the site of liquid contamination. Moreover, the greater the mass flow, the greater the impact of its changes on the pressure loss. The CFD simulation performed made it possible not only to determine the patterns of pressure loss in places of liquid contaminants accumulation in the inner cavity of gas pipelines, but also to understand the gas-dynamic processes in such places, which is an unconditional advantage of this method over experimental. Research limitations/implications: The obtained simulation results showed that the increase in the volume of liquid contaminants in the inner cavity of gas gathering pipelines leads to an increase in pressure losses above the value provided by the technological regime. To achieve maximum cleaning of gas gathering pipelines, it is necessary to develop a new method that will combine the considered. Practical implications: The performed experimental results make it possible to take a more thorough approach to cleaning the inner cavity of gas gathering pipelines and to forecast in advance to what extent the hydraulic efficiency of gas gathering pipelines can be increased. Originality/value: The obtained results of CFD simulation of gas-dynamic processes in lowered sections of gas pipelines with liquid contaminants, experimental studies of the effectiveness of various methods of cleaning the inner cavity of gas gathering pipelines has original value.

Strength and fracture toughness of short‐carbon‐fiber/hafnium‐carbide composites

AbstractCarbon‐fiber/hafnium‐carbide‐matrix composite specimens were obtained by hot pressing technique. The microstructure of the composites does not reveal chemical interactions between the fiber and matrix. The dependences of strength σ* and critical stress intensity factor K* of composites on fiber volume fraction Vf have maximums. The values of Vf for maximums of σ* and K* are of about 0.06 and ~0.12, respectively. The mean values of these characteristics are ~340 MPa and ~8.7 MPa∙m½. The same characteristics for the matrix obtained at the same technological regime are 250 MPa and 4.9 MPa∙m½.

Electrochemical polishing of matrix stents of the 316LVM steel using microsecond pulses

With the development of minimally invasive treatment technology, coronary stents made of corrosion-resistant steel are in demand for restoring the patency of blood vessels. The effectiveness of coronary stenting depends on various factors, but the quality of the surface of the stents is a major factor. The higher the quality of the surface of the stent is, the less negative the effect on the circulatory system, arterial walls, and the higher the biocompatibility of the stent is. The complex shape, small cross-section, size, and low rigidity of coronary stents are the main reasons for the inability to ensure high surface quality using mechanical finishing methods. Therefore, electrochemical methods are used to polish stents. For electrochemical polishing (ECP) of stents, an electric mode based on direct current is traditionally used. The disadvantages of direct current ECP are excessive metal removal and the need to use electrolytes of complex compositions, often containing toxic components. As an alternative to the traditional ECP with the use of direct current, we have proposed a method of pulsed ECP using pulses of microsecond duration for polishing stents. The use of pulsed current allows one to achieve a significant increase in the efficiency of the SEC process, when, due to the localization of the anodic dissolution, the smoothing speed of the microroughness of the treated surface, referred to the total metal removal, increases significantly. The paper presents a comparative analysis of ECP modes using direct and pulse current to change the surface roughness, removal, radius of curvature of the edges, and corrosion resistance on the example of stents made of the 316LVM stainless steel. Based on the results of the studies, technological regimes of pulsed ECP were established that provide the highest quality polishing of the stent surface with a small metal removal with a slight rounding of the edges.