Category: Наука и инновации/

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The Polytech Voltage Machine engineering team from the Institute of Mechanical Engineering, Materials, and Transport at SPbPU is developing an innovative snow removal robot for use in the extreme conditions of the Far North. The project is being implemented according to specifications from an industrial partner.

Last season, the team conducted the first series of field trials at a testing ground, where the Frese robotic platform was tested with specialized attachments. The tests assessed key characteristics: the platform's maneuverability in deep snow, its resistance to icing and wind loads, the efficiency of the snowplow and auger mechanism, and the power consumption of a new, high-capacity, frost-resistant battery. This battery was also developed by one of IMMiT's divisions, the Engineering Center for Design, Certification, and Testing of Advanced Energy Sources.

The tests successfully verified the system's basic functionality, confirming the correctness of the chosen engineering solutions. However, as the developers note, this was not the end, but a powerful start for further work.

“The robot has proven its basic functionality in extreme conditions, but the battle for full autonomy continues,” he commented. Engineer of the Higher School of Transport Vsevolod Gaiduk. “These tests allowed us to identify areas for growth, and we have already implemented the necessary improvements in our new project.”

This year, the team is moving on to the next important stage: testing a fully autonomous snow removal system, designated "Object 314." University staff, students, and their supervisors are working to create a system that can independently perform clearing tasks in harsh Arctic conditions.

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Staff from the Higher School of Mechanics and Control Processes of the PhysMechanics Institute (PhysMechanics) participated in the International Scientific Symposium on the Problems of Mechanics of Deformable Solids, dedicated to the 115th anniversary of the birth of Corresponding Member of the Russian Academy of Sciences Alexei Ilyushin (1911–1998). The event was held at Lomonosov Moscow State University.

Alexey Ilyushin was a prominent Soviet and Russian mechanical engineer of the 20th century. He developed the theory of elastic-plastic processes and was one of the founders of the modern theory of constitutive equations in continuum mechanics. He was the author of numerous scientific inventions, the founder of several scientific schools in mechanics, and the director of important state scientific and technical projects. He was a Corresponding Member of the Russian Academy of Sciences, a member of the Russian Academy of Rocket and Artillery Sciences, and a laureate of the Stalin Prize (1948) and the Lomonosov Prize, First Class (1995). He was Rector of Leningrad State University from 1950 to 1952. He also served as Head of the Elasticity Theory Department at Moscow University from 1942 to 1998. Over 150 dissertations were defended under Alexey Ilyushin's supervision.

The International Scientific Symposium in Memory of Alexey Ilyushin was held for the sixth time. It was organized by Lomonosov Moscow State University, the Russian Academy of Sciences, and the National Committee on Theoretical and Applied Mechanics.

The symposium's theme corresponded to the scientist's main scientific interests, covering a wide range of modern problems in the mechanics of deformable bodies.

More than 100 scientists from Russia, Belarus, Slovenia, Armenia, and Uzbekistan participated in the forum. Four RAS academicians participated: I. G. Goryacheva, R. I. Nigmatulin, Yu. V. Petrov, and V. A. Sadovnichy. The symposium program included 70 oral presentations.

SPbPU scientists presented four reports.

A. S. Semenov, D. A. Dron, Ya. K. Astapov: "Effective elastic and inelastic properties of porous metal-ceramic electrodes of solid oxide fuel cells". A. I. Grishchenko, A. S. Semenov: "Interaction of different slip systems during inelastic deformation of single-crystal nickel-based alloys". P. V. Vinh, A. B. Freidin: Static bending and buckling analysis of nanoplates using modified nonlocal strain gradient theory. S. A. Vavilov, L. V. Shtukin, O. V. Privalova, D. S. Vavilov, A. A. Kudryavtsev: "On modal localization in a string on an elastic foundation".

The report by A. I. Grishchenko and A. S. Semenov contained the results of research obtained within the framework of the RSF grant No. 25-19-00921 “Multiscale microstructural models of inelastic deformation and fracture of single- and polycrystalline heat-resistant alloys under complex thermomechanical loadingThe results presented were highly praised by participants in the section "Plasticity. Thermodynamic Processes. Theory of Constitutive Relations."

Professor Artem Semenov commented on his participation in the symposium: "This is a wonderful opportunity to see how professionals react to new ideas and research results, to receive valuable recommendations for their further development, to see the direction of development in domestic mechanics, and to informally connect with long-time friends and colleagues."

Professor Alexander Freidin noted: "The symposium was attended by leading mechanical scientists. I was delighted to see my colleagues and friends and to participate in the discussion of the papers. Our Vietnamese graduate student, Pham Van Vinh, presented results that will be included in his PhD thesis, and this was an important preliminary work."

"I was pleased to present the results of my research to leading scientists in the field of solid mechanics and to communicate informally with leading scientists from Russia, Belarus, Serbia, and Armenia," commented Senior Lecturer Alexey Grishchenko.

Polytechnicians remembered the forum for its vibrant presentations by leading scientists, heated discussions and exchanges of opinions, and interesting facts from the biography of A. A. Ilyushin.

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SPbPU scientists have developed a method for assessing the radiation resistance of gallium oxide based on fractal analysis of collision cascades during irradiation with accelerated ions. This will allow them to predict the failure of electronics under radiation conditions. The Scientific Council of the Physical Sciences Division of the Russian Academy of Sciences recognized the Polytechnic University's research as the most important achievement of 2025 in the field of solid-state radiation physics.

A research team, including professors Platon Karasev and Andrey Titov of the Institute of Electronics and Telecommunications' Higher School of Engineering Physics, and Anton Klevtsov and Elizaveta Fedorenko, assistant professors of the Institute of Physics and Mathematics' Department of Physics, applied two previously unrelated approaches to analyzing damage formation in gallium oxide electronic components. As a result, the researchers demonstrated the ability to predict the rate of defect accumulation, which will enable optimization of the manufacturing technology for diodes, transistors, and other components based on this material.

What is the significance of this discovery? Firstly, the production of semiconductor electronic devices requires the addition of atoms of special impurities in specific areas. This alters the properties of these regions of the material, resulting in diodes, transistors, and other components. One of the most precise technological methods for this addition is the acceleration of ions and their bombardment of the semiconductor (ion implantation). However, this has an undesirable side effect: structural damage. The new method developed by Polytechnic University scientists will allow for more precise calculations of irradiation during the production of semiconductors for electronic devices, minimizing the negative consequences.

Secondly, gallium oxide's high radiation resistance makes it a promising semiconductor for next-generation electronics—from onboard spacecraft to control systems at nuclear power plants. The electronic devices needed to manage electrical power are constantly exposed to radiation, and the method proposed by the Polytechnic Institute researchers will help predict the likelihood of their failure and prevent accidents.

Results of the Polytechnics' study St. Petersburg Governor Alexander Beglov notedAccording to the mayor, this discovery makes a significant contribution to fulfilling the Russian President's instructions on developing domestic microelectronics and confirms the high potential of the St. Petersburg scientific school.

The recognition of the RAS academicians and the governor's high praise for the achievements of the SPbPU scientific school in micro- and nanoelectronics technologies demonstrate that the university's scientists are working at the forefront of modern science, in close contact with enterprises, conducting research commissioned by them and ensuring Russia's sovereignty in this field.

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Scientists from the St. Petersburg Polytechnic University have developed an innovative method for producing an alternative coffee drink. The new method guarantees the absence of both caffeine and toxic acrylamide, which forms during the roasting of plant materials, in the finished product. It is based on the use of specially selected okra seed biotypes. The development has received patent Federal Service for Intellectual Property.

The current coffee substitute market offers numerous alternatives made from plant-based sources, such as Jerusalem artichoke root or cereal grains. Researchers note that the most important problem in the production of coffee, coffee drinks, and other products is the transformation of the biochemical composition of the raw materials due to the high temperatures during roasting. When foods containing sugars and starchy substances are exposed to high temperatures, the Maillard reaction occurs, leading to the formation of acrylamide. The International Agency for Research on Cancer has classified it as carcinogenic to consumers. The formation of acrylamide involving free asparagine and sugars during the thermal processing of cereal grains has been described. To reduce acrylamide content in roasted coffee beans, enzymatic treatment of the raw materials, vacuum or steam roasting, extraction of roasted beans in a supercritical fluid, final processing of the finished beverage, and, finally, yeast fermentation and the addition of amino acids have been commonly recommended. However, these time-consuming and expensive processes degrade the characteristic flavor and reduce the health benefits of the resulting coffee alternatives. The technology developed at the Polytechnic University makes it possible to prepare a delicious, safe, and inexpensive coffee drink.

The key idea behind the proposed method lies not in the subsequent removal of harmful substances from the resulting products, but in the initial use of properly selected raw materials. The technology begins with the careful selection of specific seed chemotypes with a unique biochemical composition—okra. The raw material must have extremely low levels of sugars: sucrose, glucose, fructose, maltose, and galactose. A critical requirement is a record-high level of free glycine (over 1000 mg per 100 g of dry matter) and a near-zero content of free asparagine, an amino acid that is a precursor to acrylamide.

The selected seeds are air-dried to a moisture content of no more than 18%, then gently roasted at 170°C for no longer than 40 minutes. The cooled seeds are ground to a particle size of approximately 0.5 mm. To prepare the drink, the resulting powder is steeped in water at 95-100°C for 4-7 minutes. This process maximizes the biologically active substances in the seeds and preserves the drink's original flavor and aroma, the authors note.

The health benefits of natural coffee, as well as the potential risks of excessive consumption, are being studied worldwide. The generally accepted scientific consensus is that caffeine abuse and addiction are becoming increasingly common and can lead to intoxication, withdrawal symptoms, and an increased risk of cardiovascular disease. "Our technology paves the way for the creation of a new class of healthy and safe coffee drinks that can be harmoniously integrated into a healthy diet," noted Ksenia Illarionova, Associate Professor at the Higher School of Service and Trade of the Institute of Industrial Management, Economics, and Trade.

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The Institute of Electronics and Telecommunications of SPbPU and the Special Technology Center (STC) launched a jointly manufactured nanosatellite of the 16U CubeSat standard from the Vostochny Cosmodrome – it became the sixth inPolytech Universe space satellite constellation.

PU-6 was launched into orbit by the Soyuz-2.1b launch vehicle together with the Aist-2T satellites No. 1 and No. 2 and another fifty spacecraft for various purposes.

Several hours after separation from the Fregat upper stage, the Polytech Universe No. 6 (PU-6) nanosatellite contacted ground control. Specialists then began flight and space testing of the satellite platform subsystems and the spacecraft's payloads.

The new CubeSat is designed to solve scientific and applied problems in the fields of radio monitoring, geolocation, and inter-satellite communications. Its capabilities include:

Measuring the level of electromagnetic radiation in various frequency ranges; receiving and storing AIS (automatic identification system) messages; transmitting data to the control center for processing and analysis; experimental testing of the operability of the high-speed inter-satellite radio communication system.

The previous five Polytech Universe CubeSats were smaller, comprising only three units (cubes measuring 10 cm on a side). The new PU-6 satellite is significantly larger, with 16 units. This increases its battery capacity and solar panel area, significantly increasing its active orbital time.

"Furthermore, the satellite is equipped with a new version of the onboard AIS receiver with low power consumption, allowing it to operate 24/7. It also has experimental inter-satellite communication equipment, which can improve the processing efficiency of onboard data and reduce the volume of payload data transmitted to the ground control station," explained Sergei Volvenko, a senior researcher at the Higher School of Applied Physics and Space Technology at SPbPU.

The data obtained from the satellite is also planned to be used in the university's educational process, giving students the opportunity to better understand the specifics of space missions.

The project, supported by a grant from the Planet Watch program of the Foundation for Assistance to Small Innovative Enterprises (FASIE) as part of the Space-π project, will continue the development of the Polytech Universe group, including educational programs, scientific experiments, and applied research.

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The grand opening of Russia's largest seismic test rig, designed for comprehensive seismic testing of building structures, took place in Moscow. The event was part of the All-Russian Scientific and Technical Council "Metal and Wooden Structures" and the International Scientific and Practical Conference "Steel. Wood. Seismics."

Vladimir Tarasov, Associate Professor of the Higher School of Industrial, Civil, and Road Construction, represented the SPbPU Institute of Civil Engineering at the opening ceremony. The research topics of Vladimir Tarasov, head of the new educational program "Construction of Thermal and Nuclear Energy Facilities" at the Institute of Civil Engineering, are directly related to seismic resistance calculations for buildings and structures.

The new seismic rig boasts unique technical characteristics, including not only translational but also rotational components, bringing test conditions closer to real-world earthquake scenarios. It enables testing of structures weighing up to 100 tons with the simulation of six-component seismic impacts.

The new seismic stand opens up broad opportunities for experimentally validating or refuting numerous scientific and engineering results obtained by earthquake engineering specialists through theoretical and numerical research and modeling, noted Vladimir Tarasov.

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Russian scientists have achieved the first-ever precise determination of the origin of special waves in plasma—Alfvén oscillations. This discovery provides the key to solving one of the key problems in the safety and efficiency of controlled thermonuclear fusion, which is particularly relevant in the development of future energy sources. The measurement technique was developed at Peter the Great St. Petersburg Polytechnic University. The experiment was conducted on the unique Globus-M2 spherical tokamak at the A.F. Ioffe Physical-Technical Institute.

Alfvén oscillations are a special type of wave that occurs in plasma (an ionized gas) in the presence of a magnetic field. With a slight perturbation, the particles and the magnetic field itself begin to oscillate together, like a string carrying a wave. These oscillations propagate along magnetic fields and are observed both in laboratory setups and in space. For his theoretical description of these oscillations, Swedish physicist Hannes Alfvén received the Nobel Prize in Physics in 1970.

In laboratory settings, Alfvén oscillations are studied using toroidal (doughnut-shaped) magnetic plasma confinement devices, such as tokamaks. This design allows hot plasma, with temperatures up to 100 million degrees Celsius, to be confined using magnetic fields, preventing it from coming into contact with the walls. Tokamaks create conditions similar to those found inside the Sun, allowing energy to be generated through thermonuclear fusion. Alfvén oscillations inside tokamaks have a dual effect. While they facilitate energy and particle transfer, they can also lead to heat loss or instabilities, which can lead to plasma escaping the magnetic field and subsequent melting of the structure's walls. Therefore, studying the physical processes inside such devices is particularly important. Existing theoretical models and computer calculations have described how these oscillations should behave, but experimentally testing the theory under the challenging conditions of a real toroidal device has previously been elusive.

St. Petersburg scientists have achieved two important results for the first time in the world while studying Alfvén oscillations in the plasma of the Globus-M2 spherical tokamak at the Ioffe Institute.

"First, we experimentally determined where exactly Alfvén oscillations originate and exist within the toroidal setup. Measurements were conducted using microwave Doppler backscatter (DBS) diagnostics, developed by scientists at the Polytechnic University. This diagnostics allowed us to measure the electric field amplitude of Alfvén oscillations directly in the region of their development. Second, we discovered that different types of Alfvén oscillations and their harmonics can have different localizations," explained Alexander Yashin, PhD in Physics and Mathematics and head of the "High-Temperature Plasma Diagnostics" research laboratory at the Institute of Physics and Mechanics at St. Petersburg Polytechnic University.

Since the plasma temperature inside the tokamak is too high, the use of standard contact sensors for measurements is limited.

The Doppler backscatter method uses microwave radiation scattered by inhomogeneities in the plasma. This allows for remote and local measurement of key parameters. To ensure reliability, the Doppler backscatter data were compared with data from magnetic probes, which are traditionally used to study the dynamics of Alfvén oscillations but cannot provide information on their location or the local value of their amplitude. The comparison showed that the different methods yield consistent results, noted Arseny Tokarev, a research assistant at the Scientific Laboratory of Advanced Methods for Studying Spherical Tokamak Plasma at the Institute of Physics and Mechanics of St. Petersburg Polytechnic University.

Alfvén oscillations lead to significant losses of fast particles in the plasma. Their role in thermonuclear fusion is difficult to overestimate. Firstly, only they have sufficient energy to approach and interact, resulting in a thermonuclear fusion reaction. Secondly, they transfer part of their energy to slower particles, thereby increasing the plasma temperature. To achieve efficient and safe thermonuclear fusion, it is important to minimize the loss of high-energy particles. For example, according to calculations, the ITER experimental thermonuclear reactor, being built by an international research team in France, will withstand no more than a two percent loss of fast particles. Alfvén oscillations can cause much more significant losses. Therefore, the experimental data on the localization of Alfvén oscillations in plasma obtained by St. Petersburg scientists is a valuable contribution to the development of global thermonuclear energy.

The research was supported by the Ministry of Science and Higher Education of the Russian Federation under the state assignment in the field of science, project No. FSEG 2024 0005, using the Federal Center for Shared Use "Materials Science and Diagnostics in Advanced Technologies" of the A.F. Ioffe Physical-Technical Institute, which includes the unique scientific facility "Spherical Tokamak Globus-M."

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Scientists from the Almazov National Medical Research Center and Peter the Great St. Petersburg Polytechnic University have presented a unique hardware and software system capable of assessing the state of cerebral autoregulation—a key mechanism that protects the brain from blood pressure fluctuations—in real time. This development, which has no direct analogues anywhere in the world, will allow physicians in intensive care and neurosurgery departments to instantly obtain critical data on brain blood flow and promptly adjust treatment, potentially saving the lives of patients with strokes, traumatic brain injuries, and other severe pathologies. The results of the study are presented in an international scientific journal. Sensors.

Cerebral autoregulation (CA) is a mechanism that maintains stable blood flow in the cerebral vessels despite a decrease or increase in a person's blood pressure. This "autopilot" can malfunction, for example, after a stroke or severe traumatic brain injury. Current noninvasive methods for assessing CA require post-processing of data, which is time-consuming—two to three hours to collect, process, and analyze the information. Transforming therapeutic approaches requires obtaining data on the state of CA in real time, directly during the examination. This allows for the recording of CA indicators over time, which is especially valuable when conducting functional tests and monitoring patients' condition.

To address the problem of non-invasive, real-time assessment of the central nervous system, a team of scientists from the A. L. Polenov Russian Neurosurgical Research Institute, a branch of the V. A. Almazov National Medical Research Center, and Peter the Great St. Petersburg Polytechnic University have developed a world-class hardware and software system (HSS) for the first time in Russia. The team includes programmers Professor Galina Malykhina and Associate Professor Vyacheslav Salnikov, mathematician and professor Valery Antonov, engineer Boris Govorov, and physicians Grigory Panuntsev, Anna Nikiforova, and Anastasia Vesnina. The research team is led by pathophysiologist, Honored Scientist of the Russian Federation, and laureate of the Russian Federation State Prize for Science and Technology, Professor Vladimir Semenyutin.

In intensive care settings, the use of a CAP for rapid assessment of the cerebral circulation in patients with severe brain injury significantly accelerates the decision-making process for physicians. This is crucial for timely adjustment of cerebral perfusion pressure, which is a priority in the effective treatment of cerebral edema, secondary ischemia, and recurrent hemorrhages, noted Professor Vladimir Semenyutin, Head of the Research Laboratory of Cerebrovascular Pathology at the Almazov National Medical Research Center of the Russian Ministry of Health.

The operating principle is based on monitoring very slow, spontaneous fluctuations in blood pressure and linear blood flow velocity in the middle cerebral arteries. These are recorded using non-invasive methods—photoplethysmography and transcranial Doppler ultrasound. The key indicator is the phase shift (the difference in rhythm) between these two "pulses" in a specific low-frequency range, the so-called Mayer waves.

The scientists' key innovation is specialized mathematical algorithms that analyze these signals not afterward, but directly during the study. The system utilizes two powerful data processing methods: short-time Fourier transform and wavelet analysis (continuous wavelet transform). The latter method, according to the study, proved more sensitive and allows for better detection of the moments when autoregulation is activated or deactivated, providing higher resolution in time and frequency. All processing occurs so quickly that the results are displayed on the screen almost instantly.

The effectiveness and safety of the complex have been confirmed by clinical trials. In the first phase, it was tested on 40 healthy volunteers. They underwent standard functional tests—hypercapnia (inhalation of air with elevated CO2 levels) and hypocapnia (intensive breathing). These tests consistently alter cerebral vascular tone, which the complex recorded, demonstrating predictable changes in phase shift. The AAC was then tested on 60 patients with various neurovascular pathologies, including atherosclerotic carotid stenosis and cerebral arteriovenous malformations. These patients exhibited asymmetry in CA values between the cerebral hemispheres, and their responses to functional tests often deviated from the norm. For example, a patient with an arteriovenous malformation did not show a normal vascular response to carbon dioxide. All this proves that the complex is capable of not only recording the functioning of a healthy system, but also clearly identifying its disturbances in pathologies.

The developed hardware and software system has demonstrated high efficiency and informativeness. It can be used both for real-time diagnostics of the cerebral circulation in patients and for studying the mechanisms regulating cerebral blood flow in healthy individuals. The proposed algorithms minimize the risk of methodological errors and significantly reduce the time required to obtain information, which is especially important for making urgent decisions, noted Galina Malykhina, professor at the Higher School of Computer Technologies and Information Systems at the Institute of Computer Science and Cybersecurity at SPbPU.

The introduction of this system into clinical practice opens a new era in bedside monitoring of critically ill patients. Currently, dozens of parameters are monitored in real time in intensive care units, including blood pressure, pulse rate, oxygen saturation, and intracranial pressure. However, a key parameter—the adequacy of cerebral blood flow—remained unnoticed due to the difficulty of instantaneous assessment. The new APC integrates into this system, providing physicians with a pathogenetically based tool for personalized management of cerebral perfusion pressure. This means that therapy—for example, the selection of medications to increase or decrease blood pressure—can be based not on average standards, but on precise data on how a specific patient's blood vessels are protecting their brain at a given moment.

The scientists aren't resting on their laurels. The next step is integrating artificial intelligence into the system for in-depth data analysis. The goal is not only to diagnose the current condition but also to predict the risk of secondary vascular complications in neurosurgical patients. The use of artificial intelligence will not only allow for the early detection of functional abnormalities, when they are still treatable, but also for more accurate determination of indications for surgical treatment.

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A scientific seminar dedicated to the 125th anniversary of Lev Loitsyansky was held in the first academic building of Peter the Great St. Petersburg Polytechnic University.

Lev Gerasimovich Loitsyansky (December 13 (26), 1900 – November 3, 1991), professor, Honored Scientist and Engineer of the Russian Federation, a leading expert in boundary layer and turbulence theory, and the author of fundamental monographs and textbooks on fluid dynamics and theoretical mechanics, is among the most outstanding Russian mechanical scientists of the 20th century. A key milestone in L. G. Loitsyansky's biography was the establishment, on his initiative in 1935, of the Department of Hydroaerodynamics at the Leningrad Polytechnic Institute, which he headed for nearly four decades.

Lev Loitsyansky published over 120 original scientific papers in a wide variety of areas of fluid and gas mechanics: the theory of laminar and turbulent boundary layers, the statistical theory of turbulence, the semi-empirical theory of turbulence, the theory of viscous fluid jets, the theory of gas lubrication, etc. Many of these became fundamental in the development of entire areas of fluid dynamics.

The textbook "Mechanics of Liquids and Gases" prepared by L. G. Loitsyansky for universities has gained widespread recognition. The first of its many editions dates back to 1950, and the last, seventh, to 2003. In our country, this book remains one of the main textbooks and a recognized scientific guide in this field for students, graduate students, and engineers.

More than 100 people took part in the scientific seminar organized by the Institute of Physics and Mechanics (PhysMech) of SPbPU: students of Lev Gerasimovich, teachers and staff of PhysMech, primarily the Higher School of Applied Mathematics and Computational Physics (HSAMCP), other divisions of the university, scientific and educational organizations of St. Petersburg (SPbSU, Voenmech, St. Petersburg State Marine Technical University, St. Petersburg State University of Civil Aviation, Krylov State Research Center, VNIIG named after B.E. Vedeneyev and others) and Moscow (TsAGI), graduates of the Department of Hydroaerodynamics, postgraduate students and students of HSAMCPCP.

The event's goal is not simply to pay tribute to this outstanding scientist and educator, but also to analyze how his fundamental ideas influenced the development of modern science and technology.

Vladimir Glukhov, an advisor to the rector's office and a 1970 graduate of the Physics and Mechanics Faculty (Department of Mechanics and Control Processes), addressed the seminar participants with a welcoming speech. He noted Lev Gerasimovich's caliber as a scientist and his importance to the university. According to Vladimir Viktorovich, Loitsyansky was a brilliant teacher and always treated students warmly, even if they studied in other departments.

The seminar program included thematic presentations by SPbPU professors, invited representatives of scientific organizations, and high-tech industry organizations—graduates of the Department of Hydroaerodynamics.

List of speakers

Professor of the Higher School of Applied Mathematics and Wind Engineering at SPbPU (graduate of the Department of Hydroaerodynamics in 1972) Evgeny Smirnov, topic of the report: “L. G. Loitsyansky – scientist, teacher, organizer” Corresponding Member of the Russian Academy of Sciences, Chief Researcher at the N.E. TsAGI Zhukovsky Alexander Gaifullin, topic of the report: "Near-wall jets of incompressible fluid" Head of the Laboratory of Computational Hydroaeroacoustics and Turbulence PISh CI SPbPU (graduate of the Department of Hydroaerodynamics in 1970) Mikhail Strelets, topic of the report: "Experience of direct numerical modeling of turbulent boundary layers in complex flows" Technical Director of Soft-impact LLC (graduate of the Department of Hydroaerodynamics in 1999) Vladimir Kalaev, topic of the report: "From the basics of aerohydrodynamics to innovations in microelectronics" Leading engineer-technologist of JSC Concern TsNII Elektropribor Alexander Filippov (graduate of the Department of Hydroaerodynamics in 1972), topic of the report: "School of gas lubrication of L.G. Loitsyansky: theory and tasks of the high-tech industry" Technical Director of LLC Sergey Yurkin (1978 graduate of the Hydroaerodynamics Department), Research and Production Enterprise Ista, presentation topic: "From concept to multipurpose use in industrial products: a high-speed pneumatic valve developed by the Hydroaerodynamics Department of the Polytechnic University."

Participants noted the high level of organization of the seminar, the informative presentations, and the friendly atmosphere of the event. Later, in the hallways, the scientists shared their memories of Lev Gerasimovich.

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The Polytechnic University held its traditional annual legal forum, POLYLEX. This year, the forum was timed to coincide with the 500th anniversary of the Northern Sea Route's development. The key event was the plenary session of the 11th All-Russian Scientific and Practical Conference with International Participation, "Current Issues of Ensuring National Security."

Polytechnicians, representatives of law enforcement agencies and the judicial system, legislative and executive authorities at all levels, the real sector of the economy, and the scientific community of the CIS gathered in the Polytechnic's Main Building.

Opening the meeting, Dmitry Mokhorov, Director of the Higher School of Law and STE, emphasized: "The Polytechnic University has historically fostered legal education, inextricably linked to national security issues. As Maxim Pasholikov, Vice-Rector for Information, Youth Policy, and Security at SPbPU, noted at Lawyer's Day in the White Hall, a close relationship between engineers and lawyers is crucial at all times. And here, the Polytechnic University is ahead of the curve, advancing the trend of high-quality, cutting-edge education."

Ivan Mushket, Deputy Head of the Secretariat of the IPA CIS Council, conveyed welcoming remarks from Secretary General Dmitry Kobitsky to the event participants and specifically highlighted the role of the Polytechnic University and the scientific discourses held within its walls in the development of modern legal science.

Alexey Zinchuk, a member of the 7th St. Petersburg Legislative Assembly, noted the importance and necessity of annual legal events: the "Problems of Law in Modern Russia" conference and the POLYLEX Polytechnic Legal Forum, for developing students—future lawyers—as professionals who will be responsible for the development of our country.

Cybersecurity was the focus of the plenary session. Sberbank representatives Natalia Eroshenko (Head of Corporate Business and Government Relations at the Legal Department of Sberbank's North-West Bank) and Pavel Glukhov, Head of Retail Business Protection, addressed the topic. The experts presented a report titled "Challenging Transactions Influenced by Fraudsters."

Also speaking at the conference were Alexander Smirnov, Head of the Forensic Science Department of the Investigative Directorate of the Investigative Committee of Russia for the Lipetsk Region, and Vasilina Brusentseva, Associate Professor of the Department of Civil Law and Procedure at the Russian Presidential Academy of National Economy and Public Administration (Lipetsk Branch). Nikita Yakovlev, Head of the Department of Criminal and Civil Law at Lipetsk State Technical University, presented a report titled "Cybersecurity of Minors: Modern Threats and Effective Protection."

Speakers from Uzbekistan, Armenia, and Belarus joined via video link.

Vladimir Mikhailov, Senior Prosecutor of the Criminal and Judicial Department of the Leningrad Region Prosecutor's Office, addressed cybersecurity issues and shared the prosecutor's office's best practices in this area. He also cited several successful cases based on collaboration between law enforcement agencies and the scientific community to apprehend criminals.

This year's special guests were Diana Zholudeva, Pavel Skakun, Darya Vashko, Alexander Belov, and Alexey Chumovitsky, representatives of the Scientific and Practical Center of the State Forensic Examination Committee of the Republic of Belarus. They shared their experience in developing forensic examination in Belarus and praised the work of the Polytechnic University in developing forensic science activities through the Higher School of Law and Forensic Technical Examination. They outlined further plans for collaboration, joint publications, and development of a methodological framework.

In addition to the plenary session, other important events were held at the university: a scientific and practical conference on "Counteracting Corruption," a student and school conference on "The Constitution—the Foundation of the State's Legal System," master classes on forensic expertise in law enforcement, and a moot court.

"POLYLEX is gaining momentum every year," noted event participants. "It's no longer just a small-scale legal forum at the Polytechnic University, but a significant international event in its own right."

The forum featured an exhibition of scientific, educational, and methodological works on jurisprudence and forensic examination. A collection of abstracts will be published following the forum's results. The best articles will be included in a special issue of the interdisciplinary scientific journal "Current Problems of Science and Practice" (RSCI).

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