National Research Tomsk Polytechnic University Research Articles

Enhancing English as a foreign language communicative competence among engineering undergraduates through English medium instruction

Introduction. The actuality of this research paper is determined by new approaches to the content and organization of professional training for bachelor students in view of UNESCO requirements to sustainable development of modern engineering education. The practical experience gained in the course of teaching in a technical university revealed the fact that English medium instruction contributes to the development of both professional and communicative competences of a global engineer. The current study aims to design a professionally-oriented module-based English medium course targeted at the formation of English as a foreign language competence of non-native bachelors and prove its efficiency in training practice. Materials and methods. The methodological basis for this study was a competence-based and module-based approaches to teaching academic subjects through English for Russian-speaking bachelor students majoring in nuclear physics and technologies. There were 113 undergraduate students of the 3d and 4th years of study who took part in the experimental study carried out on the basis of National Research Tomsk Polytechnic University (Russian Federation). Results. In the course of the research, a module-based English medium course (EMC) was developed and introduced in a four-year bachelor training, which offered trainees deep and rich language practice on a variety of topics referred to their vocational domain and regular assessment of the target competence development throughout the implementation of the target training course. The obtained results indicated that trainees’ target competence significantly enhanced, in particular, their vocabulary and oral communicative skills. The most striking results were demonstrated by trainees whose levels of the target competence increased significantly and reached advanced level (63.2%). Conclusion. The EMC course designed in compliance with the main principals of competence-based and modulebased approaches had a positive effect on future engineers’ EFL communicative competence development, thus, contributing a lot to their successful career progression as highly professional engineers on the global arena.

A Comprehensive Approach to Investigating Fluorine-Bearing Gas Mixtures

An integrated method is proposed for examining the compositions of fluorine-bearing gaseous mixtures, which allows for determining the concentration of HF, F2, N2, O2, CO2, CF4, and C2F6 in these mixtures. The concentration of hydrogen fluoride is determined by its sorption on sodium fluoride followed by the determination of the fluoride ion by the potentiometric method. The lower threshold of determination of hydrogen fluoride is found to be 0.09 vol.%. The concentrations of N2, O2, CO2, CF4, and C2F6 are determined by the gas chromatographic method using a thermal conductivity detector. The proposed gas-chromatography method offers a quantitative measurement of the concentration of N2, O2, CO2, CF4, and C2F6 at the lower limits of detection of 0.008, 0.012, 0.011, 0.009, and 0.019 vol.%, respectively. Based on the developed method, the compositions of a standard fluorine-nitrogen (10 vol.%) and anodic gas samples, synthesized in a laboratory electrolyzer at the National Research Tomsk Polytechnic University and in an industrial electrochemical reactor at JSC Siberian Chemical Plant (Russia), are studied.

Разработка и реализация программ для развития профессиональных умений в области синхротронных и нейтронных исследований во время пандемии

The paper presents National Research Tomsk Polytechnic University (TPU) and its partner-organizations experience in development and delivery of educational programme within the topic: “In situ techniques of synchrotron investigation of multilayered functional structures with unique parameters and properties designed with beam-plasma surface engineering”. The unique features of the programme are discussed, as well as specifics of its realization and factual outcomes — educational aims and learning outcomes. The educational programme is unique representation of experience of research and educational organizations. The programme specifics include its realization in the format of hybrid and blended teaching and learning in new conditions of pandemics.

Probing yields and angular distributions of Be(d,n) neutrons with novel target of compressed beryllium-powder

A comprehensive study was conducted in the Cyclotron laboratory at National Research Tomsk Polytechnic University on the use of a new type of target utilized in the production of fast-neutrons. The flux and spectra of the fast-neutrons emitted by a novel target of compressed beryllium powder were studied. The neutron angular distribution was measured using Fe and Al foils as detectors in different angular situations of the target relative to the incident deuteron beam. It was found that there are some discrepancies in the neutron flux at 0° degree for the detectors, up to about 20% for different target-beam angle. Likewise, the flux of neutrons in the energy range between 1 and 6 MeV make up about 83% of the total flux. Compering with previous works using solid target, we found an increase of nearly twice the yield of fast neutrons. And there is a probability that increase would rise steadily as the deuteron energies exceed 12 MeV as was the case in our work. The results of this study are new and promising and we can obtain a relatively greater neutron yield when using a compressed powder target. This is reflected positively on many applications that use fast-neutron beams, such as radiotherapy, radioactive isotopes, and even nuclear fusion experiments, among others.

Preface: 2021 All-Russian scientific conference with international participation “Thermophysical basis of energy technologies” (TBET 2021)

All-Russian scientific conference with international participation “Thermophysical basis of energy technologies” (TBET 2021) was held at National Research Tomsk Polytechnic University, Tomsk, Russia, October 26-28, 2021.Scientific reports of participants were made in three sections covering the following topics:1. Combustion technologies; 2. Technical thermal physics and nuclear energy; 3. Thermal engineering and automation of technological processes and metrology measurement systems; Over 60 attendees took part in the Conference in both online and offline formats. Among them, there were Russian and foreign scientists representing academic and scientific institutions, as well as industrial enterprises.The main tasks of the Conference were to promote the innovative development of thermal and power engineering and higher education in Russia; to strengthen the interaction of university and academic science in the development of innovative technologies in thermal power engineering in Russia and abroad.We thank all section chairs, organizers and participants of All-Russian scientific conference with international participation “Thermophysical basis of energy technologies”.List of Editors are available in this pdf.

Peer Review Declaration Form

All papers published in this volume have been reviewed through processes administered by the Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing.• Type of peer review: Single Anonymous• Conference submission management system: Morressier• Number of submissions received: 37• Number of submissions sent for review: 32• Number of submissions accepted: 23• Acceptance Rate (Submissions Accepted / Submissions Received × 100): 62.2%• Average number of reviews per paper: 1.00• Total number of reviewers involved: 2• Contact person for queries:Name: Evgeniya OrlovaAffiliation: National Research Tomsk Polytechnic University, Russia, TomskEmail: lafleur@tpu.ru

Дистанционное образование без дистанции: гармонизация педагогического общения на занятиях по РКИ в вузе

The article presents a study of the problem of creating a language environment in the context of distance education. The article is aimed at solving the problem of theoretical substantiation of the psychological and pedagogical conditions for harmonizing pedagogical communication in the process of teaching students Russian as a foreign language in the context of the transition of universities to distance education in connection with the 20202021 pandemic, which led to a global transformation of the communication channel in pedagogical communication. The aim of the study is to identify the psychological and pedagogical conditions for the harmonization of pedagogical communication in the process of teaching Russian as a foreign language at a university in the context of the transition to a distance learning format. Pedagogical communication is considered as the main technology for the implementation of educational activities, a tool for interaction between the subjects of the educational process. The components of pedagogical communication are educational speech situations and their components: communicants, external circumstances, internal circumstances (N.I. Formanovskaya). The key is the presentation of pedagogical communication in the form of a “communicative circle”, formulated within the framework of a text-oriented approach to teaching the Russian language (N.S. Bolotnova). The harmonization of pedagogical communication is understood as the implementation of psychological and pedagogical conditions that provide maximum comfort for the subjects of educational activity in order to develop their creative and cognitive activity in the information educational environment. The study was conducted on the basis of the National Research Tomsk Polytechnic University during the period of full transition to distance learning in the 2020-2021 academic year. The main research methods are: pedagogical observation, questioning, analysis of the results of students' activities. As a result of the study, psychological and pedagogical conditions for the harmonization of pedagogical communication were identified in accordance with its functions: information and communication, regulation and communication, education and communication, the function of inter-cultural interaction. In conclusion, the psychological and pedagogical conditions are systematized, allowing to achieve the harmonization of pedagogical communication in the RFL classroom with a full transition to a distance learning format: the development of personalized educational content, the integrated use of online services; the use of information services as a tool for creating a space for the development of students' personal qualities; the formation of a group as an international team with experience in intercultural communication, professional skills and personal qualities of a teacher.

Study of rare earth elements in the coals of the Shubarkol deposit

The work studies mineralogical and geochemical features of the Jurassic coals of the Shubarkol deposit. The samples were examined using the method of scanning electron microscopy (SEM-EDX) Hitachi S-3400N, which was carried out at the Uranium Geology Research and Development Center at the Department of Geoecology and Geochemistry of TPU. Coal geochemistry was studied by instrumental neutron activation analysis (INAA) at the nuclear geochemical laboratory of the Department of Geoecology and Geochemistry of National Research Tomsk Polytechnic University (TPU). The choice of this object of study was determined by the tasks of research including the study of the patterns of accumulation of abnormal concentrations of REE, the effect of various factors of the geological environment on the levels of their accumulation in coals, as well as the conditions of its concentration and forms of occurrence in coals to expand the mineral resource base of Kazakhstan for rare earth elements. According to the results of scanning microscopic analysis, aluminosilicates, sulfides and sulfates with inclusions of microparticles of rare and rare earth elements were found in the composition of the Shubarkol deposit coals. According to the INNA results, abnormal concentrations of Sc, Ta, Nb, Hf, Zr, Ba, Sr, Ce and REE were found. Weathering processes led mainly to the loss and redistribution of REE in the coal seams of the Shubarkol deposit, which in turn led to increasing the content of rare earth elements from the bottom up the section. As a result of the action of multiple processes, increased concentrations of rare earth metals, mainly of the yttrium group, were formed. The absence of negative europium anomaly was determined, which confirms the original rocks composition peculiarity. The maximum contents of rare-earth metals are confined to weathered coals; for the medium-heavy group (Nd, PM, Sm, Eu), they are almost a hundredfold higher than the clarke in the upper continental crust. The tenfold excess of the clarke for elements from Gd to Lu was found in clayey sandstones and siltstones; for the rest of the rocks of the deposit the excess over the clarke is significantly lower. It was found that the coals of the deposit belong to the H-type and L-type of REE distribution. During the formation of oxidized H-type coals, clayey matter of terrigenous ash predominated as a carrier of REE, while unoxidized L-type coals were formed with the introduction of REE into the coal accumulation basin mainly in the composition of clay minerals and LREE-phosphates. Here the main source of REE was apparently the weathering crust over acidic rocks.

Developing team competencies of mining engineers in collaborative learning under the CDIO concept

The problem of forming team competencies among future mining specialists in response to modern challenges of the Russian labor market in the coal mining industry is investigated. Many domestic universities are modernizing their educational programs in accordance with CDIO (Conceive–Design–Implement–Operate) standards in order that students master engineering skills in line with the Think–Design–Implement–Manage model. The CDIO concept is focused on the development of systemic, creative and critical thinking, task-setting and problem-solving skills, as well as on teamwork in the course of engineering. The level of team competency development among future mining engineers in transition to FSES 3++ is identified, and the effectiveness of the collaborative approach to the formation of team competencies in the educational process of a university is proved. The study involved 135 students of various courses of the National Research Tomsk Polytechnic University specializing in mining, geological exploration technology and applied geology. Monitoring of the team competency development among students was carried out through observation, project team working results, questionnaires, interviews and the executed work apprehension by the students. The authors have revealed the criteria and levels of the team competency. The studies show that most mining engineering students have medium-level team competencies. The theoretical and empirical research allowed the authors to formulate specific pedagogical recommendations to handle this problem.The study was supported by the Russian Foundation for Basic Research, Project No. 19-29-07350.

Peer review declaration

All papers published in this volume of Journal of Physics: Conference Series have been peer reviewed through processes administered by the Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing.• Type of peer review: single blind, when authors did not know the identity of the reviewer.• Conference submission management system: The submission processing had no a software system. Call-for-paper was placed on the Conference web page (https://aik.mai.ru/en/proceedings_en), the papers were submitted via e-mail. The reviews were asked and received via e-mails.• Number of submissions received: 125 • Number of submissions sent for review: 109 • Number of submissions accepted: 91 • Acceptance Rate (Number of Submissions Accepted / Number of Submissions Received X 100): 0.73 • Average number of reviews per paper: 2.46 • Total number of reviewers involved: 1406 • Any additional info on review process: The consideration of the submitted manuscripts included independent peer review single-blind process. At least two reviewers gave their view and remarks for each paper sent for review. The evaluation of the quality of the manuscripts was done on a high level according to the follow criteria: novelty of the presented work, reasonable and detailed description of the experimental procedure, understandable interpretation of the presented data, significant and evident proves to verify the proposed hypothesis, the absence of plagiarism, adequacy of references, the quality of language by eminent specialists in different scientific subject areas. All reviewers also were asked to provide their recommendations about paper acceptance (to publish the paper “as is”; to publish the paper after minor revision; to publish the paper after major revision; to reject the paper).• Contact person for queries: Dr. Anna Godymchuk, National Research Tomsk Polytechnic University, Russia, godymchuk@tpu.ru

Development of team competence among graduates of technical universities on the basis of collaborative learning

Problem and purpose. The modern economy needs engineers with a new consciousness and psychological attitudes, possessing the necessary competencies, capable of giving a positive impetus to the development of further competitiveness of enterprises located in the territories of advanced social and economic development and Russia as a whole. The purpose of the article is to substantiate the effectiveness of implementing a collaborative approach in the formation of team competence in the system of higher and supplementary professional education. Methods. The study involved 135 graduates of various technical fields of study, 243 third-year and fourth-year students of the National Research Tomsk Polytechnic University, and 203 participants in supplementary professional education programs. The development of team competence among students and participants was monitored through observation, teamwork on projects, questionnaires, and interviews. To analyze the data, the Pearson χ2 statistical test was used. Results. It was found that the employers highly valued team competence as a necessary component of a specialist's qualification characteristics. The results of the study confirmed that the level of the formation of team competence among 135 graduates was mainly at a low level (41%) and an average level (45%). The analysis of various studies allowed concluding that the collaborative approach has great potential in the development of this competence. Discussion and conclusion. The stages of implementing the collaborative approach proposed by the authors made it possible to increase the efficiency of educational activities, both in the higher education system (χ2 = 7.72; p < 0.01) and in the system of supplementary professional education (χ2 = 7.46; p < 0.01), which is confirmed by the pedagogical experiment. The effectiveness was determined through numerical meters, allowing accurate diagnosis of the success of the participants in the experiment.

Preface

All-Russian research-to-practice conference for young researchers, postgraduate students and undergraduates “Ecology and safety in the technosphere: current problems and solutions” (EST_PS_2020, 19-21 November 2020, UTI TPU, Yurga, Russia) will make a contribution to the rethinking of the relationship between man and nature in today’s world, to finding the best ways to overcome the negative effects of the environmental crisis and to solve security issues.The conference aims at discussing research development and introducing innovations in the field of environmental and technosphere safety; searching for collaborative research areas and strengthening cooperation between young researchers and professionals from educational and scientific institutions in Russia; creating a platform for creative communication and exchange of experiences between young researchers and professionals in the issues of environmental and technosphere safety.Due to the severe impact of the COVID-19 outbreak and travel restrictions, it has been difficult for authors to attend the offline meeting. Therefore, the EST_PS_2020 virtual conference is a better way to achieve the goal of ensuring the safety and health of all participants. EST_PS_2020 was conducted virtually through the platform “Zoom”. Before the official meeting, the organizing committee has opened a test room for all keynote speakers and authors to test the Zoom whether the operation is normal or not. The conference was held in three thematic sections. All the participants had 10-15 minutes to present their latest academic research findings one by one. Besides, there is a Q&A discussion after every presentation. 67 speakers took part in the conference. After the detailed reviewing, we have accepted 24 submissions.The results of the conference for young researchers, postgraduate students and undergraduates can be applied in making improvements in the curricula of students in the field of technosphere security; developing measures for the organization of schools for young researchers; presenting the research results for further discussion with colleagues and leading scientists in the priority areas; issuing new monographs, textbooks, laboratory exercises, lecture notes.The Organizing Committee of the Conference thanks all the participants of the Conference for their fruitful work and personal contribution to the development of these Conference Proceedings. Dmitry A. Chinakhov, PhD, Conference Convenor, Director, Yurga Institute of Technology of National Research Tomsk Polytechnic University List of PROGRAM COMMITTEE, ORGANIZING COMMITTEE are available in this pdf.

Peer review declaration

All papers published in this volume of IOP Conference Series: Earth and Environmental Science have been peer reviewed through processes administered by the Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing.□ Type of peer review: Single-blind□ Describe criteria used by Reviewers when accepting/declining papers. Was there the opportunity to resubmit articles after revisions? We selected articles corresponding to the scientific direction of the selected journal IOP. The comments identified in the article were sent to the authors of the articles for revision.□ Conference submission management system: Email address used for the submission of papers and the person in charge is (shkurskaya@tpu.ru) Malchik A.G.□ Number of submissions received: 31□ Number of submissions sent for review: 31□ Number of submissions accepted: 24□ Acceptance Rate (Number of Submissions Accepted/Number of Submissions Received X 100): 77□ Average number of reviews per paper: 2□ Total number of reviewers involved: 4□ Any additional info on review process (ie plagiarism check system): antiplagiat.ru system□ Contact person for queries: Dr. D.A. Chinakhov, Yurga Institute of Technology, National Research Tomsk Polytechnic University, chinakhov@tpu.ru, svettch@rambler.ru

Perface

14th International Forum on Strategic Technology (IFOST), October 14-17, 2019, Tomsk, Russia, organized by National Research Tomsk Polytechnic University (Russia).International Forum on Strategic Technology (IFOST) is a nonprofit organization composed of member institutes located in Asia: University of Ulsan (Korea), Novosibirsk State Technical University (Russia), Tomsk Polytechnic University (Russia), Harbin University of Science and Technology (China), Mongolian University of Science and Technology (Mongolia), Chemnitz University of Technology (TUC) Germany.The main purpose of the forum is to engage researchers into the discussion of strategic technologies, broaden their experience of participation in international events and giving an opportunity to find new colleagues and co-authors. IFOST is a meeting point for researchers from multiple countries. Plenary speakers of the forum were the distinguished experts in the field from universities of Germany, Brazil, and France.IFOST-2019 proceedings cover a wide range of topics:1. New Materials and Nanotechnologies2. Information and Communication Technologies3. Mechanical Engineering, robotics, and automation4. Power Engineering and Renewable Energy5. Ecology, Environmental Engineering, and Civil Engineering6. Applied Engineering and Management7. High Energy Physics8. Chemistry and Biotechnologies9. Aerospace Engineering Committee General Chair: Prof. Dr. Petr S. Chubik, acting rector of Tomsk Polytechnic University, Tomsk, RussiaDeputy Chair: Dr. Roman Ostvald, Deputy Vice-Rector for Research and Innovations, Tomsk Polytechnic University, RussiaTechnical Program Committee Chair: Prof. Oleg Stukach, HSE Tikhonov Moscow Institute of Electronics and Mathematics, IEEE Senior Member, Moscow, RussiaTechnical Program Committee Co-chair: Prof. Jayakody Dushantha Nalin Kumara, Research Laboratory for Information and Telecommunication Systems, Tomsk Polytechnic University, Tomsk, IEEE Senior Member, Russia Editors Roman Ostvald, Tomsk polytechnic universityDaria Gvozdeva, Tomsk polytechnic universityAnastasia Ryabikina, Tomsk polytechnic university

Anisotropic Structures for Concentrating Thermal-Neutron Fluxes

An experiment has been prepared and performed to prove the feasibility of creating anisotropic structures in which surfaces of thermal-neutron sinks are formed with the subsequent concentration in selected areas. A device capable of selecting neutrons by the direction in space is based on the effect of neutron reflection from the surface of materials. Experimental confirmation has been obtained for the operability of a neutron concentrator design in devices that form and use directed high-intensity thermal-neutron beams with elliptical-profile channels. The neutron concentrator is made of blocks of profiled-graphite and aluminum plates. The operability of a slowing-down and focusing structure (SFS) based on a package of elliptical neutron mirrors has been experimentally verified. The SFS is able to form oriented thermal-neutron beams from the outgoing flow of reactor neutrons. Silicon single-crystal wafers are used, with which it is possible to obtain distributions of integral neutron fluxes in a reactor to detect the effect of selective thermal-neutron separation. The experiments have been carried out in the GEK-4 channel at the IRT-T reactor of the National Research Tomsk Polytechnic University with an integral neutron flux of (2.30−3.02) × 1017 cm−2. The neutron flux is determined from the change in the electrical resistivity of single-crystal silicon wafers. The effect of the thermal-neutron concentration has been detected both on a block of graphite neutron mirrors and on a block of thin-walled aluminum elliptical mirrors.

Experimental confirmation of a new method for selective neutron separation

The article presents an experimental confirmation of the operability of neutron concentrators in devices that form and use directed high-intensity thermal neutron beams with elliptical channels made as blocks of profiled graphite and aluminum plates. The effect of neutron reflection from the surface of materials is the basis of a device capable of selecting neutrons by their directions in space. The study experimentally confirmed the efficiency of a moderating-focusing structure (MFS) based on a pack of elliptical neutron mirrors, which makes it possible to form oriented thermal neutron beams from the outgoing neutron flux. To record the effects of selective thermal neutron separation, silicon single-crystal wafers were used, due to which it was possible to obtain portraits of integral neutron fluxes in the reactor. The experiments were carried out in a horizontal experimental channel (HEC-4) at the IRT-T reactor of the National Research Tomsk Polytechnic University. The integral neutron flux was (2.3–3.02)·1017 cm–2. The neutron flux was detected by the change in the specific electrical resistivity of the single-crystal silicon wafers. The effect of concentration of thermal neutrons was recorded both on the block of graphite neutron mirrors and on the block of aluminum thin-walled elliptical mirrors. In the near future, on this basis, it will be possible to solve such problems as extending the reactor life by reducing the hydrogen uptake in the inner walls. In addition, the experiments have proved the possibility of creating anisotropic structures that lie outside the formalism of Liouville’s theorem, in which the surfaces of thermal neutron sinks are formed with subsequent concentration in the areas separated by aluminum or graphite plates.

ЭКСПЕРЕМЕНТАЛЬНОЕ ИССЛЕДОВАНИЕ ТЕПЛОВОГО ГАЗОДИНАМИЧЕСКОГО МЕТОДА ДЛЯ ПРЕДОТВРАЩЕНИЯ ГИДРАТООБРАЗОВАНИЯ В ГАЗОПРОВОДАХ С ИСПОЛЬЗОВАНИЕМ ЦИКЛОНОВ

Актуальность исследования обусловлена необходимостью уменьшения количества гидратов газа в потоке смеси или их полного разрушения. Газовые гидраты являются крайне негативным фактором газовой промышленности, они усложняют все стадии подготовки, транспортировки и переработки сырья. Гидраты аккумулируются на стенках сосудов при определенных термобарических условиях, также их скопление наблюдается в полостях арматуры, что может привести к их преждевременному износу или повышению гидравлического сопротивления потока флюида, а следовательно, повышению энергических затрат. Существующие методы борьбы с гидратообразованием очень опасны (применение метанола для разрушения гидратов), очень затратны (применение ингибиторов гидратообразования) или энергозатратны и малоэффективны (прогрев трубопровода специализированным кабелем). Также отложения гидратов могут негативно сказываться на приборах учета и замера. Цель: экспериментальное исследование процесса удаления из потока газа льда и его разрушения на специализированной установке. Объект: автономная модульная установка для борьбы с гидратообазованием. Методы: теоретические методы для обоснования закономерности течения процессов тепломассообмена, расчетно-аналитический метод для определения количества энергии, практические методы по проведению экспериментов. Результаты. Построен лабораторный стенд на базе Национального исследовательского Томского политехнического университета, проведены эксперименты для различных потоков газа с разными термобарическими условиями, проанализированы основные зависимости качества отделения льда из смеси, доказана практическая значимость разработки и даны рекомендации для создания опытного образца. Рассмотрена модель расчета основных конструктивных параметров циклона, рабочей полости. Представлена методика проведения экспериментов и техники подбора оптимальных термобарических параметров.

Peer review declaration

All papers published in this volume of IOP Conference Series: Earth and Environmental Science have been peer reviewed through processes administered by the Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing.• Type of peer review: Single-blind • Conference submission management system: The papers from the authors were submitted to the email address kosovanatalia@yandex.ru, managed by Dr. Natalia Karakchieva (National Research Tomsk State University, Russia).• Number of submissions received: 105• Number of submissions sent for review: 76• Number of submissions accepted: 66• Acceptance Rate (Number of Submissions Accepted / Number of Submissions Received X 100): 63%• Average number of reviews per paper: 2.2• Total number of reviewers involved: 167• Any additional info on review process: The consideration of the submitted manuscript included independent peer review process. At least two reviewers gave their view and remarks for each paper. All reviewers were asked to provide a detailed review with comments for authors and editors and evaluate paper taking into account the questions list (Is this work novel? Is this work scientifically correct (the experimental procedure and sequence)? Does the subject significantly advance research in the fields of research? Does it have high scientific quality? Does this work have significant proof to verify the primary hypothesis? Is this work incremental? Is the paper clearly written, concise and understandable? Should the English be improved? Is the paper scientifically sound and not misleading?). All reviewers also were asked to provide their recommendations about paper acceptance (to publish the paper “as is”; to publish the paper after minor revision; to publish the paper after major revision; to reject the paper).• Contact person for queries: Dr. Anna Godymchuk, National Research Tomsk Polytechnic University, Russia, godymchuk@tpu.ruProf. Svetlana Morkovina, Vice-rector of Voronezh State University of Forestry and Technologies named after G.F. Morozov, Russia prorektor_nauka@vgltu.ru

Preface

International Forestry Forum “Forest Ecosystems as Global Resource of the Biosphere: Calls, Threats, Solutions” (Forestry-2020) is our annual conference organized by Voronezh State University of Forestry and Technologies named after G. F. Morozov (Russia) in October, 23, 2020, Voronezh, Russia. The event was supported by Belarusian State Technical University (Belarus), Czech Academy of Agrarian Sciences (Czech Republic), Zvolen Technical University (Slovakia), Madrid Polytechnic University (Spain), Belgrade University (Serbia), and Research Institute of Forest Genetics, Breeding and Biotechnology (Russia), and the Federal Forestry Agency of the Russian Federation (Russia).Forestry-2020 is an important event in the calendar for practitioners, academicians and young scientists across Russia, Viet Nam, Slovakia, Latvia, Germany, Kyrgyzstan, Greece, France, Poland, Romania, Spain, Kazakhstan, Bulgaria, Mexico, Moldova, Serbia, Sweden, and the Republic of Belarus. The Conference allows researchers to present their research in forestry and to develop the collaboration between institutions in forest science, management and industry.The participants of the Conference presents papers covering (1) Forestry, forest management and multi-purpose use of forests; (2) Genetics, selection, seed production, reproduction and biotechnology in forestry; (3) Biodiversity of forest ecosystems, protection and defense of forests; (4) Forest park and landscape architecture; (5) Economics and management in the forestry complex; (6) Historical and social aspects of nature management; (7) Forest industry and mechanization of the forest complex; and (8) Innovations in the forestry complex.The Organizing Committee is highly grateful for the contribution of the Participants, Institutions and Sponsors supporting the event. All the manuscripts included to the Proceedings went through intensive reviews by experts in various scientific areas from China, Italy, Indonesia, United Kingdom, Russia, Spain, India, Finland, Mexico, USA, Canada, Hungary, Lithuania, Ukraine, Iraq, Argentina, Brazil, Uruguay, Iran, Czech Republic, Portugal, Germany, Croatia, Colombia, Colombia, and Bulgaria.The Editors expresses profound gratitude to all the reviewers, whose enthusiasm amplified the high quality of the papers. The conference was supported by the Federal Forestry Agency (Russia). Web page of the Forestry-2020: https://vgltu-conference.wixsite.com/forestry2020 Organizing Committee: Dr. Svetlana Morkovina,Voronezh State University of Forestry and Technologies named after G.F. Morozov, Russia Editors of the Special Issue Forestry-2020: Prof. Antonio García-Abril, Universidad Politécnica de Madrid, SpainDr. Anna Godymchuk, National Research Tomsk Polytechnic University, RussiaDr. Natalia Karakchieva, National Research Tomsk State University, Russia

Guest Editorial: Non‐Destructive Testing

Guest Editorial: Non‐Destructive Testing