bluuebunny/crossref_metadata_2025 huggingface dataset:
Strategy-as-practice in Irish construction professional service firms (PSFs)
Authors: Seriki Oluwasegun Oluwaseyi , Murphy Roisin
Published: December 2024

Much has been said around the dynamics/process of competition and gaining business advantage within the construction sector, however, much less investigation has gone into the practice-based elements of firms in the construction sector, particularly high knowledge intensive professional service firms(PSFs). The strategy-as-practice viewpoint is one of the most recent approaches to strategic management, which focuses on the people, practices and praxis elements of organisations. There is a lack of research on people within the construction industry who are the link between strategy practice (social, symbolic, and material tools and processes) and praxis (how strategic activity is accomplished). These people form the critical link between organizational and extra-organizational levels, making them a critical element in strategic analysis. The realization of strategic goals depends on these people, and for the strategy to be effective within construction organizations, it needs to be properly interpreted in the organizational context by these people. This study presents a unique strategy-as-practice lens of construction professional service firms (architectural, engineering, and surveying consultancies) using a sample of 27 Irish firms. The findings advance knowledge on the who (people) is involved in strategy within PSFs, what they engage in for strategizing (practices) and how they achieve the same (praxis).
Integrating Green Chemistry in Engineering Chemistry for Achieving Sustainable Development Goals through Education(JEET)
Authors:   Department of Chemistry, Hyderabad institute of technology and management, Telangana (E),, Binani Shradha , Reddy Nayini Varshitha ,   Undergraduate student, Hyderabad institute of technology and management, Telangana (E),, Patel Mihir ,   Undergraduate student, Hyderabad institute of technology and management, Telangana (E),, Subramanyan Vikram ,   Department of Management, Hyderabad institute of technology and management, Telangana (E),
Published: December 2024

Abstract— Integrating Green Chemistry Principles (GCP) into the engineering chemistry curriculum has proven to be highly effective in enhancing freshman students' awareness and understanding of the Sustainable Development Goals (SDGs). This research was conducted to evaluate how the incorporation of Green Chemistry Principles influences students' grasp of concepts related to key SDGs, specifically SDG 3 (good health and wellbeing), SDG 6 (clean water and sanitation), SDG 12 (responsible consumption and production), and SDG 13 (climate action). To assess this, an inferential statistical analysis was carried out, including pre- and post-tests administered to a random sample of First year 120 students from an autonomous college in South India. The results were analyzed using a parametric paired t-test revealing a significant improvement in students' understanding of how green chemistry practices align with sustainable development concepts. The paired t-test confirmed that students' comprehension of these concepts notably increased after the introduction of Green chemistry Principle into their curriculum. Additionally, student feedback was overwhelmingly positive, with many reporting a deeper appreciation for how their field contributes to achieving the SDGs and a greater sense of responsibility towards sustainable practices. This study underscores the effectiveness of integrating 12 Green chemistry principles into basic education, as it not only improves technical knowledge but also fosters ethical responsibility and innovation towards sustainability. It highlights the value of incorporating sustainability concepts early in educational programs, providing a model for aligning technical education with global sustainability goals.

Keywords— Sustainable Development Goals, Green Chemistry Principles, Engineering Chemistry
Problem Based Learning – An Effective way of teaching DSP course
Authors:   KLE Technological University, Hubli, Kalyani Rohit , S R Nirmala ,   KLE Technological University, Hubli, H M Gireesha ,   KLE Technological University, Hubli, Shet Raghavendra ,   KLE Technological University, Hubli, Iyer Nalini ,   KLE Technological University, Hubli, Chikkamath Satish ,   KLE Technological University, Hubli, Kulkarni Akash ,   KLE Technological University, Hubli, Budihal Suneeta V ,   KLE Technological University, Hubli
Published: December 2024

The Digital Signal Processing (DSP) course is fundamental to many signal processing and communication applications. Since it is a mathematical intensive, faculty often face challenge in teaching and keeping students engaged for longer time. Students find it challenging to understand the core concepts and practical applications. The present work investigates Problem-Based Learning (PBL) approach to enhance the teaching of DSP by integrating real-world problems and active learning strategies. This new approach was offered to third-year students of the university, combining PBL with traditional lectures. The curriculum is redesigned according to constructive alignment. It included core DSP concepts as modules, PBL activities for each module and their assessment. The PBL was implemented in different phases focusing on orientation, problem identification, signal analysis, and system design. The new experience resulted in improved student engagement, concept understanding, and problem-solving skills in DSP, with positive feedback from students. The future plan is to focus on addressing the challenges faced during the initial implementation and to refine the PBL approach for the next batch of students.

Keywords— Digital signal processing (DSP); PBL; Real world problems, Reflection; Self-directed learning; Traditional teaching;
Optical and Morphology Mechanism of CeO2 Thin Films Prepared by Ultrasonic Spray Pyrolysis Method
Authors: Kellegöz Murat , Kurtaran Sema
Published: December 2024

Cerium oxide (CeO2) thin films were successfully fabricated on glass substrates via spray pyrolysis at 350°C with varying molarities (0.025, 0.05 and 0.1 M). We employed various characterisation techniques to assess how molarity influences these thin films' microstructural, optical, morphological, and surface properties. The as-synthesized samples exhibited a distinct face-centred cubic fluorite structure oriented along the (2 0 0) crystallographic plane. Raman spectroscopy provided insights into imperfections, with the longitudinal optical mode confirming the presence of oxygen vacancies. The peak asymmetry and width in the Raman spectra were associated with the existence of Ce+3 ions and oxygen vacancies. Photoluminescence spectra (PL) illustrated an excitation peak at 400 nm and two emission peaks at 525 nm and 600 nm. Our scanning electron microscopy (SEM) images illustrated how molarity affected the morphologies of the samples, while atomic force microscopy (AFM) allowed us to investigate the film's surface morphologies and roughness values. Transmittance analysis within UV-Vis spectral range indicated that these samples were transparent, with transmittance levels ranging from 20% to 60%. Furthermore, we observed a decrease in the band gap energy (Eg) with increasing molarity. These findings hold significant promise for expanding the applications of cerium oxide in technological devices.
Universalism and Locality in Sally Rooney’s Digital Ireland
Authors: McAteer Michael
Published: December 2024

Text messages and emails permeate the novels of contemporary Irish author Sally Rooney, shaping the ways in which characters relate to one another while also reflecting the globalization of Irish society through the medium of digitalization. In light of the socialist political positions that some of her principal characters adopt, this article examines digital communication in Conversations with Friends and Normal People with reference to certain concepts of Marx. I address online modes of communication in both novels in terms of Marx’s understanding of relations between workers and machines in the industrial era, Christian Fuchs’ re-articulation of his ideas for the age of digital capitalism, and the critique of empty universalism that Marx directs against the modern liberal-democratic political state. I examine Rooney’s narration of tensions between rural/small-town and urban life in Ireland as part of the online environment through which she addresses these issues. Observing the significance of Edna O’Brien’s The Country Girls (1960) to her first two novels, I stress how important local Irish attachments are to Rooney’s fiction, both as a means of resisting empty universalism and as testimony to human exploitation in the present age of digital capitalism.
Numerical Analysis of Natural Frequencies of Three-layer Plate under Temperature Load
Authors:   Institute of Continuous Media Mechanic, Ural Branch of the Russian Academy of Sciences, Kamenskikh Alexander O.
Published: December 2024

One of the options for controlling the dynamic state of thin-walled structures is the creation of prestress state within. Stress field can be induced by various actuators, smart materials or plastic deformation. Deformations arising from uneven temperature distribution, different coefficient of thermal expansion of the materials or boundary conditions also affect the natural frequencies. This can lead to undesirable phenomena such as loss of stability or spectrum moving into the region of frequencies subject to resonance. In this paper, the influence of tempera-ture loading on the natural frequencies of a three-layer plate is investigated by the finite element method. The obtained solution of the spectral problem is compared with the results of other authors. Plates with different configurations and boundary conditions are considered. The relative change of the plate first three natural frequencies on temperature load are received. It is shown that the resulting prestressed state has poor effect on natural frequencies free-edges plate. The results of numerical calculations for a plate clamped on both sides demonstrate that with increasing stiffness, the critical temperatures also increase.
Finite Semimodules Over Three-element Multiplicatively Idempotent Semirings
Authors:   Vyatka State University, Vechtomov Eugeny M. , Petrov Andrey A. ,   Vyatka State University, Shklyaev Alexander P. ,   Vyatka State University
Published: December 2024

In this paper we study the structure of finite semimodules over three-element multiplicatively idempotent semirings. The main attention is paid to the case of three-element idempotent semirings. Semimodules containing at most 6 elements over three-element idempotent semirings are described.
Theoretical and Practical Aspects Building Recommendation Models: Typology, Architecture and Directions Design
Authors:   Perm State University, Sokolov Andrey V. ,   Innopolis University, Sychev Ivan A. ,   Perm State University, Sokolova Olga L. ,   Perm State University, Volkova Darya B. ,   Perm State University, Seletkov Ilya P. ,   Perm State Univesity, Yashichev Dmitriy L. ,   Perm State University, Yasnitsky Leonid N. ,   Perm State Univesity
Published: December 2024

The article is devoted to the study of promising areas of designing a recommender system for the pre-order and delivery service RapiDo with an emphasis on deep learning methods and problems of models at a cold start. The authors analyze existing types of recommender systems, their features in pre-order and delivery services and aspects of insufficient efficiency of modern models associated with the lack of consideration of the order context, individual user preferences, irrelevance of the data used and the lack of feedback. The article considers the main types of recommender systems used by the largest Russian delivery platforms and user information that services use when building their recommender models, and also highlights the key areas of designing the RapiDo recommender system, taking into account the need to work with limited data at early stages. The authors pay special attention to the architectures of recommender models based on deep learning methods, considering more than a dozen of the most popular options. Promising approaches are analyzed, including adaptive learning based on user feedback, collaborative filtering using demographic data, and hybrid mechanisms that combine different methods to improve the accuracy and stability of predictions. The paper presents the first results of the study and highlights the importance of integrating deep learning into the RapiDo recommendation system to achieve high model accuracy and address the problem of insufficient data at early stages.
Light and shadows of digital reality: the artificial and the natural (editor’s note)
Authors:   Perm State University, Vnutskikh Alexander Yu. ,   Perm National Research Polytechnic University
Published: December 2024

It is highly important to provide reflections on the digitalization process, its achievements and challenges from the perspective of the humanities within a broad interdisciplinary discussion. An example of such a discussion was the II All-Russian Scientific Conference with international participation ‘Light and Shadows of Digital Reality: the Artificial and the Natural’. The note analyzes the main content of the papers included in this thematic issue and prepared by the Conference participants or presented by the authors independently. A plan is presented for a conference to be regularly held as a successor of the Conference ‘Light and Shadows of Digital Reality’ (Perm State University, 2023–2024) and the Conference ‘Image of the Engineer in the 21st Century’ (Perm National Research Polytechnic University, 2014–2019).
Quantum ontology of «elementary intelligence»
Authors:   Institute of Philosophy of the National Academy of Sciences of Belarus, Spaskov Alexander N.
Published: December 2024

The article provides a critique of atomistic ontology and reductionism in explaining the nature of life and consciousness. As an alternative direction based on organic ontology, fundamental psychophysical principles and quantum-information approach, the concept of quantum monadology is proposed, the metaphysical foundations of which are given in the works of G. Leibniz and N. Lossky. A model of «elementary intelligence» in complementary unity with the elementary body is proposed. The premise of this representation is the mathematical formalism of quantum mechanics. The wave function is interpreted as a prototype of consciousness, and the observed physical quantities are interpreted as a prototype of the material body of the monad given in its phenomenal experience. The probabilistic nature of the behavior of quantum particles is explained by the objective existence of chance and the activity of quantum objects, which, perhaps, should be considered as a potential basis for the formation of the psyche. To characterize the internal state of the monad, the concept of a color charge is introduced, which has the meaning of a binary information code, and the principle of dynamic complementarity is formulated. A model of the elementary «life cycle» of a quantum monad is constructed. Elementary intelligence is understood as the ability for intellectual activity, including the processing of information significant for life, as a result of which the existence of quantum monads is maintained and reproduced. A substantial justification of quantum Darwinism is given, and a hypothesis about the genesis and co-evolutionary development of the «elementary psyche» and physical body of monads in the process of global evolution is put forward. A conclusion is made about the possibility of constructing a model of quantum behavior and the synergetic interaction of monads that form more complex systems, as well as about the prospect of developing a quantum ontology of matter and consciousness. The construction of a model of «elementary natural intelligence» will contribute to the identification of fundamental ontological limitations in the development of strong artificial intelligence.
On the fundamental (im)possibility of strong artificial intelligence
Authors:   V.I. Vernadsky Crimean Federal University, Gabrielyan Oleg A.
Published: December 2024

The drastic changes taking place in the world affect not only the geopolitical or geo-economic level but also all others related to the arrangement of mankind’s existence on the planet. Obviously, such transformations will lead to a change in both the social and scientific paradigms. And this process is already happening. The Age of Enlightenment as a social paradigm, as well as the scientific paradigm that developed during the scientific revolution of the 17th century, has exhausted its potential. This means that their principles are insufficient to explain the processes that occur in the modern world and science. It is in this context that the problem of creating strong Artificial Intelligence (AI) should be considered. In the article, this problem is presented in such a way that, from the standpoint of the interval approach, such a possibility is preserved in a certain sense when the problem is changed, reformulated. At the same time, the paper presents substantial, not to say fundamental, arguments to justify the impossibility of its resolution in the existing paradigm. And there is no logical, epistemological, or ontological contradiction in this. In the first case, as evidenced by the history of science, it has always managed to find a solution to «unsolvable» problems. Science did this by rethinking the problem itself, by creating new methodologies, methods, and technologies. In the second case, science became aware of the problem itself and the fundamental impossibility of solving it in the old paradigm, and it overcame these limitations through philosophy. The article shows that using the problem of strong AI.
Integrity and integration of personality in the process of experiencing one’s own destructiveness
Authors:   Saint Petersburg State University, Filatova Anastasiya F. , Kostromina Svetlana N. ,   Saint Petersburg State University
Published: December 2024

A personality’s experience of their own destructiveness is becoming increasingly important in the life context of a modern person. Despite the intensive growth of research interest in the problems of destructive behavior and human destructiveness, the question of the role of the integral personality system in the implementation of destructive activity remains unclear. The article deals with the theoretical and methodological problem of the correlation between the concepts of destructive behavior and personality integrity. The traditional understanding of destructiveness in scientific discourse assumes the definition of this phenomenon as a «dark» and negative property of a «disintegrated» personality, as well as the emphasis on destructive behavior as being conditioned by mental disorders and irregularities in emotional-volitional regulation. At the same time, phenomenological analysis of the experience of one’s own destructiveness allows us to detect the subject’s activity and involvement, volitional initiation and realization of destructive actions and deeds. It is only at first glance that destruction and integrity seem to be oppositions through which we can describe the inner conflict of a personality and ambivalent tendencies in intrapersonal dynamics. The process approach to personality research allows us to consider binary oppositions through the prism of the principle of complementarity, according to which opposite personality tendencies are complementary. In this connection, a personality’s experience of their own destructiveness also includes integrative processes conditioned not by disruption in the functioning of the integral personality system, but, on the contrary, by its subsequent recovery, reconstruction, and self-organization. The review of psychological literature on the research problem allowed us to conclude that specific theoretical approaches to the study of human destructiveness are based on authors’ implicit or explicit ideas about personality as an integral or differentiated entity. Based on the results of the study, we propose a description of the integrative and disintegrative aspects of the experience of personal destructiveness. The dominant tendency is the maintenance of integrity and stability, since the activity of experiencing is aimed at integrating the subsystems of personality in order to overcome a difficult life situation, as well as at integrating life experience.
Sociological approaches to defining the concept of early intervention
Authors:   Center for Complex Rehabilitation of People with Disabilities, Serebryakova Valeria Yu.
Published: December 2024

The article examines sociological approaches to the concept of «early intervention», highlighting a variety of scientific perspectives offered by different authors. In light of the growing problem of disability among children, the paper substantiates the need for rethinking this issue within innovative paradigms of the understanding of childhood disability and approaches to its prevention. In modern conditions, it is highly relevant to create a comprehensive system for the prevention of childhood disability and the dissemination of modern preventive technologies. The article explores the history and development of early intervention, as well as its specifics in modern Russian practice. Based on the available data on the current state of early intervention in Russia, the author stresses the objective need for the development and popularization of early intervention services in order to prevent childhood disability. Particular attention is paid to the analysis of the term «early intervention» from the perspective of sociological approaches and its correspondence to foreign models. The insufficient sociological conceptualization of the term necessitates an analysis of its essence and specific features in the context of macro-sociological approaches: systemic, structural-functional, institutional, and others. The study shows early intervention to be emerging services based on generally accepted social practice with certain system-forming, structural, and functional characteristics. The main elements of early intervention are macro, exo, meso and micro levels, as well as the main structural elements and functions of the system for the prevention of childhood disability. The author notes the process of institutionalization of early intervention in the existing Russian conditions, makes an attempt to identify and describe the main stages of institutionalization of early intervention.
Effect of silicon and vanadium on corrosion-mechanical properties of high-nitrogen Cr – Mn steels
Authors: Goikhenberg Yu. N. , Polukhin D. S.
Published: December 2024

The authors studied the phase composition, crystal lattice parameters, mechanical properties and stress corrosion resistance of high-nitrogen austenitic and austenitic-ferritic Cr – Mn steels after homogenizing treatment, aging and cold plastic deformation. It was established that alloying of Cr – Mn steels with silicon and vanadium can lead to the formation of different amounts of ferromagnetic ẟ-ferrite and, from its low content, to significant hardening due to the grain-boundary effect. The presence of ẟ-ferrite has a hardening effect both after homogenizing treatment and during cold plastic deformation. In vanadium-alloyed Cr – Mn steels, even after austenitization treatment at 1250 °C, a finer grain of austenite of 8 – 9 numbers is retained than those of steels alloyed with silicon, having after quenching from a lower temperature (1150 – 1170 °C) larger grain of 6 – 7 numbers. Formation of even small amounts of ẟ-ferrite leads to a decrease in corrosion cracking resistance of high-nitrogen chromium-manganese steels. At the same time, corrosion resistance of high-nitrogen steels with ẟ-ferrite is significantly lower than that of austenitic steels containing 0.4 % nitrogen and more single-phase Cr – Mn. Aging causes significant hardening of high-nitrogen, alloyed with both silicon and vanadium, Cr – Mn steels with ẟ-ferrite and is accompanied by a loss of ferromagnetism with a significant decrease in toughness and ductility. Disappearance of ferromagnetism seems to be due to the fact that ẟ-ferrite disintegrates into a σ-phase and a paramagnetic nitrogen-containing austenite. Microstructural and X-ray diffraction studies indicate that the aging of steel with ẟ-ferrite proceeds by a continuous mechanism, accompanied by a monotonous decrease in the lattice parameter of austenite due to the release of nitrides from it. Aging of two-phase steels, leading to the disappearance of ẟ-ferrite and ferromagnetism, caused a catastrophic decrease in corrosion cracking resistance.
Şârihlerin Sarf İlminin Gelişimindeki Rolü ve Katkıları: Cürcânî’nin Şerhu’l ‘İzzî Adlı Eseri Özelinde Bir İnceleme
Authors: Ülker Şehmus
Published: December 2024

Tarihsel süreçte Arap dili grameri alanında önemli eserler telif edilmiştir. Bunlardan biri de sarf ilmiyle ilgili Zencânî’nin (öl. 660/1262 (?)) el-‘İzzî fî’t-tasrîf adlı çalışmasıdır. Zencânî’nin el-‘İzzî fî’t-tasrîf’i sarf alanında telif edilen muhtasar eserlerdendir. İlgili çalışma, muhtasar bir eser olmasına rağmen sarf ilminin birçok konusunu ihtiva etmektedir. el-‘İzzî fî’t-tasrîf, yazıldığı günden bu yana ilim çevreleri arasında büyük bir rağbet görmüş ve sarf ilminin tahsil edilmesinde önemli kaynaklar arasında yer almıştır. Sarf ilmiyle ilgilenen birçok kişi Zencânî’nin el-‘İzzî fî’t-tasrîf’i üzerine şerhler kaleme almıştır. Bu âlimlerden biri de Seyyid Şerif Cürcânî’dir (öl. 816/1413). Arap dilinin önemli âlimlerden biri olan Cürcânî, farklı alanlarda birçok eser telif etmiştir. Bu eserlerden biri de Zencânî’nin el-‘İzzî fî’t-tasrîf adlı eseri üzerine yazdığı Şerhu’l-‘İzzî adlı eseridir. Cürcânî, söz konusu eserinde konu sıralaması açısından Zencânî’nin eserindeki sıralamaya bağlı kalmıştır. Cürcânî, müellifin metnini sadece şerh etmekle kalmamış, meselelerin eksik kalan yanlarını tamamlayarak ek bilgilere de yer vermiştir. Bazı durumlarda ise soru cevap yöntemini uygulayarak musannifin metni ile ilgili muhtemel sorulara da cevap vermiştir. Doküman inceleme ve literatür taraması şeklinde gerçekleştirilen bu çalışmada Cürcânî’nin Şerhu’l-‘İzzî adlı eseri ele alınmıştır. Bu bağlamda Cürcânî’nin şerhi; içerik, metod, üslûp, dil ekollerine yaklaşımı, etkilendiği Arap dili âlimleri, meselelerin eksik yanlarını tamamlaması, muhtemel itirazların cevaplarına yer vermesi açısından incelenmiştir. Böylece bu çalışma, hem şârihin Şerhu’l-‘İzzî adlı eserindeki şerh metodunu hem de eserin Arap diline olan katkısını ortaya koymayı hedeflemiştir.
Les tableaux de bord verts comme exemple d'intégration des enjeux de transition écologique dans les formations diplômantes universitaires des Experts-Comptables et Commissaires Aux Comptes
Authors: CHASSAGNE Julie , ALTUKHOVA-NYS Yulia
Published: December 2024

Aujourd’hui, « le professionnel du chiffre est appelé à …apprécier [la performance globale], dans le cadre de sa mission d’audit légal, en qualité de tiers indépendant ou en tant qu’évaluateur » (Cretté et Tran Vu, 2022, p.31). Cela implique une formation spécifique des Commissaires Aux Comptes (CAC) et des Experts-Comptables. C'est pourquoi, à l’instar des propositions de Dao-Le Flécher (2021) et du Manifeste étudiant pour un Réveil écologique (2018), nous estimons que les connaissances sur le sujet de la transition écologique et, plus particulièrement, leur articulation avec les outils de gestion, doivent être rigoureusement intégrées dans le cursus de la formation initiale des CAC et celui pour les métiers du chiffre en général. Certaines universités prévoient, par exemple, déjà des cours sur les enjeux écologiques dès le niveau de licence première année. Cependant, lorsqu’il s’agit d’articuler ces cours avec les matières de spécialisation, on trouve peu d’enseignements prévus à cet effet (WWF, 2022). Ainsi une révision des programmes des diplômes concernés (DCG, DSCG, CCA, DEC, CAFCAC) s’impose (Altukhova-Nys et Bicalho, 2022). Nous souhaitons donc présenter des pistes de réflexion sur l’intégration de ces enjeux, notamment, dans le programme pédagogique des Masters Comptabilité-Contrôle-Audit (CCA) qui préparent de futurs cadres comptables, dirigeants et commissaires aux comptes.
La transition en école de design
Authors: BONNARDOT Zoé
Published: December 2024

Face aux multiples transitions (sociales, économiques, écologiques), la pratique du design évolue, passant d’une attention centrée sur les aspects matériels et techniques d’un artefact, à une attention plus marquée sur les aspects sociaux et systémiques d’un service. Dans le même temps, le monde de la recherche en design explore les phénomènes de transition aujourd’hui à l’œuvre, entrainant une évolution épistémologique de la discipline, ainsi que l’apparition de nouveaux outils, méthodes et postures pour les designers. Dans ce contexte, la réflexion menée ici porte sur les porosités entre recherche et pédagogie en école de design, en s’appuyant sur l’expérience du développement de la recherche à l’École Supérieure de Design de Troyes.
Stockage géologique de carbone issu des bioénergies
Authors: LAUDE-DEPEZAY Audrey
Published: December 2024

Le BECCS (BioEnergy with Carbon Capture and Storage) permet de récupérer les émissions de dioxyde de carbone issues de bioraffineries pour le stocker définitivement dans des formations géologiques. Le BECCS est considéré comme incontournable dans les modèles du GIEC pour limiter la hausse des températures mais son déploiement est très lent. Outre le manque d’incitations économiques adéquates, cet article démontre que cette technologie a été conçue dans une perspective top-down, sans prendre en compte les caractéristiques locales ni les effets de concurrence avec les autres technologies de décarbonation. Pour cela une analyse des discours sur le BECCS dans la littérature scientifique est réalisée puis comparés aux difficultés rencontrées par les acteurs du projet CO2-DISSOLVED cherchant à construire un pilote industriel.
THE EFFECT OF SI CONTENT IN TI-AL-TA-SI-N COATINGS ON THEIR FRACTURE UNDER UNIAXIAL TENSION
Authors:   Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences, KUZMINOV E.D. , SHUGUROV A.R. ,   Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences, DERBIN A.YU. ,   Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences, PANIN A.V. ,   Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences, DMITRIEV A.I. ,   Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences
Published: December 2024

The effect of Si content on the patterns of deformation and fracture of Ti1- x - y - z Al x Ta y Si z N coatings under uniaxial tension is investigated. The nanoindentation method has shown that coatings with z = 0.10 have the maximum hardness, which is caused by the formation of a thin grain-boundary amorphous SiN x phase in them. At the same time, the coating Ti0.35Al0.40Ta0.10Si0.15N showed the highest fracture resistance and adhesive strength. It was found that this effect is due to the suppression of the growth of columnar grains in this coating and the formation of a two-phase amorphous nanocrystalline structure, which makes it difficult for cracks to spread.
NUMERICAL STUDY OF THE INFLUENCE OF THE MELTING IN THE WALL ON THE CONVECTIVE HEAT TRANSFER IN A CLOSED CAVITY
Authors:   Tomsk State University, KIRILLOVA K.I. ,   Tomsk Research and Design Institute of Oil and Gas, BONDAREVA N.S. ,   Tomsk State University
Published: December 2024

Heat and mass transfer processes with phase changes are of great interest from the point of view of energy storage and cooling systems. Melting and solidification processes change the thermophysical properties of materials, while converting a large amount of energy into latent heat when passing through the melting point. This study considers a two-dimensional unsteady problem of natural convection in an air cavity bordering a wall filled with the phase change material.
SIMULATION OF COMBUSTION OF CONDENSED HIGH-ENERGY MATERIALS CONTAINING POWDERED ALUMINUM. I. EXPERIMENT
Authors:   Tomsk State University, PORYAZOV V.A. , PORYAZOV V.A. ,   Tomsk State University; Voevodsky Institute of Chemical Kinetics and Combustion of the Siberian Branch of the Russian Academy of Sciences, KRAINOV D.A. ,   Tomsk State University; Tomsk Polytechnic University, SOROKIN I.V. ,   Tomsk State University; Voevodsky Institute of Chemical Kinetics and Combustion of the Siberian Branch of the Russian Academy of Sciences, SURODIN G.S. ,   Tomsk State University; Voevodsky Institute of Chemical Kinetics and Combustion of the Siberian Branch of the Russian Academy of Sciences
Published: December 2024

The characteristics of condensed combustion products (CCPs) from fuels based on aluminum and an inert binder with varying levels of aluminum dispersion were studied using a selection method. Experiments were conducted at pressures from 2 to 8 MPa using argon as a gas, with particles quenched near the combustion surface. Data on the combustion rates, morphological and particle size distributions of CCPs, incomplete combustion, and energy release efficiency of the metallic fuel are presented. Sizes of selected CCP particles were compared to those of agglomerates calculated using the tetrahedral pocket model. The measured parameters will be used to develop and validate a combustion model in the next article in the series.
EFFECT OF INTENSIVE DEFORMATION-HEAT TREATMENT ON THE STRUCTURE AND ELECTRONIC STRUCTURE OF CR-MN-N STEEL
Authors:   Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences, SHULEPOV I.A. , NARKEVICH N.A. ,   Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences, BUYAKOVA S.P. ,   Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences
Published: December 2024

The electronic spectra of high-nitrogen stainless Cr-Mn-N steel were studied depending on the type of its treatment: hardening, intensive surface shock treatment in the form of ultrasonic frequency hardening (UFH), and strain-heat treatment including successively performed UFH and electron beam heat treatment (EBT). Depth distribution profiles of element concentrations obtained by layer-by-layer Auger spectroscopy showed that during UFH, the steel surface is enriched with oxygen, which is likely to be located at sub-grain boundaries and linear defects of crystal lattice, since according to the results of the TEM study, there are no reflexes with large interplanar distances from oxides. The UFH + EBT processing allowed to form a sub-grain non-oriented structure with a fragment size not exceeding 30 nm, where CrN nitrides are evenly distributed in the austenite. Studies of electronic spectra have shown that the electronic levels in the atoms of high-nitrogen steel form configurations in which the interatomic Auger transitions are possible, because of which the Auger-peaks of chromium and manganese are shifted to the region of low energies at 5-14 eV. The increase in the number of linear defects and intergranular boundaries after UFH was found to affect the intensity and energy shifts of energy loss spectra on plasmons and spectra of secondary ion-electron emission.
MID-IR ANTIREFLECTIVE INTERFERENCE OXIDE COATINGS FOR SEMICONDUCTOR OPTICAL SUBSTRATES
Authors:   Tomsk State University, YUDIN N.N. , ZINOVIEV M.M. ,   Tomsk State University, PODZYVALOV S.N. ,   Tomsk State University, KUZNETSOV V.S. ,   Tomsk State University, SLYUNKO E.S. ,   Tomsk State University, GABDRAKHMANOV A.SH. ,   Tomsk State University, LYSENKO A.B. ,   Tomsk State University, KALSIN A.YU. ,   Tomsk State University
Published: December 2024

The dispersions of the refractive index and absorption coefficient were determined for monolayers of titanium oxide and silicon oxide. The design of a multilayer antireflective optical coating for these materials in the spectral range of 0.4-8 microns has been developed. Modes for applying coating using ion-beam sputtering onto a semiconductor substrate have been selected. The optical characteristics of a four-layer interference antireflective coating on a ZGP substrate were measured in the ranges of 2097 nm and 3.5-5 μm with residual reflections of R ≤ 0.2% and R ≤ 2.1%, respectively. Tests were carried out for adhesion and abrasion of the coating in accordance with GOST.
THE MODEL BETHE-SALPETER EQUATIONS FOR THE HIGGS SCALARS SCATTERING AMPLITUDE WITH SOLUTIONS
Authors:   Institute for Physical Problems of Baku State University, JAFAROV R.G. ,   Baku State University
Published: December 2024

The integral Bethe-Salpeter equation with minimally perturbative kernels for scattering amplitudes of Higgs scalar particles is studied using ladder (single-particle exchange) and two-particle irreducible diagram (bubble exchange) approximations. Asymptotic solutions of the corresponding equations for the scattering amplitudes of Higgs scalar particles are obtained. In case of approximation of the summation of ladder diagrams, a solution is found in the form of a power function s α in the Regge region of energy change s →∞. In the approximation of summation of two-particle irreducible diagrams when solving the corresponding equation with a partially perturbative kernel, an asymptotic solution in the form of power functions for the scattering amplitude of Higgs particles is found.
STUDY OF THE EFFECT OF COBALT BOND CONCENTRATION ON THE PENETRATING ABILITY OF CARBIDE-TUNGSTEN IMPACTORS DURING HIGH-VELOCITY IMPACT INTO A STEEL TARGET-WITNESS
Authors:   Tomsk State University, SAMMEL A.YU. , SKOSYRSKY A.B. ,   Tomsk State University, BURKIN V.V. ,   Tomsk State University, DYACHKOVSKIY A.S. ,   Tomsk State University, ISHCHENKO A.N. ,   Tomsk State University, KUDRYAVTSEV V.A. ,   Tomsk State University, STEPANOV E.Y. ,   Tomsk State University, CHUPASHEV A.V. ,   Tomsk State University
Published: December 2024

Peculiarities of high-speed interaction of cylindrical impactors with a conical head, made on the basis of carbide-tungsten alloy, with cobalt bond of different concentrations have been investigated. The penetration ability of these samples into a steel obstacle in the range of interaction velocities 500-850 m/s has been investigated.
SPECIFIC HEAT CAPACITY AND TEMPERATURE STABILITY OF HIGHLY-FILLED COMPOSITE MATERIALS NATURAL GRAPHITE/PHENOLIC RESIN
Authors:   Research Institute of Graphite-Based Structural Materials «NIIgrafit», DANILOV E.A. , KHACHATURYAN A.A. ,   Research Institute of Graphite-Based Structural Materials «NIIgrafit»; Dmitry Mendeleev University of Chemical Technology of Russia, GUROVA E.M. ,   Research Institute of Graphite-Based Structural Materials «NIIgrafit»; Bauman Moscow State Technical University, SHISHANOV M.V. ,   Dmitry Mendeleev University of Chemical Technology of Russia
Published: December 2024

In the present work, we study natural graphite/phenolic resin composite materials manufactured via hot pressing technique at filler loadings 75-95 wt.%. Temperature dependences of the specific heat capacity at 25-200 °C and mass loss in the range 25-1000 °C were studied. It has been shown that with increasing filler loading, the specific heat capacity increases nonlinearly and deviates from the expected additivity, and these deviations cannot be explained by resin decomposition or matrix orientation effects. High temperature stability provides means for application of the described composite materials up to at least 400 °C.
La enseñanza del léxico en español de los negocios
Authors: Iriarte Romero Emilio
Published: December 2024

The present research delves into the treatment that lexicon can have in the area of Spanish for Specific Purposes (SSP, hereafter). Lexical teaching is a vitally important area in the teaching of Spanish as a foreign language. This discipline is characterized by a certain divergence that separates, among other issues, the teaching of Spanish as a foreign language from a generalist perspective as opposed to a perspective oriented towards teaching the language for specific purposes.
This article aims to provide the reader with some key guidelines for making decisions regarding the lexical terminology to encounter in the development and design of a learning situation. To do this, we will analyze the essential factors that emerge from reference documents such as the Common European Framework of Reference for Languages (CEFR, hereafter), along with its complementary volume.
The question that arises in this area of lexical teaching for specific purposes is aimed at determining two essential issues. The first one is related to the criteria to be used to determine a lexical selection, which must be correlated with the thematic issue of the unit. The second question to consider for the teaching of Spanish for specific purposes is related to the development of a template that allows for the creation of terminology framed within a lexical field. In other words, lexical teaching for specific purposes focuses on two essential aspects: a) Criteria for lexical selection: The selection must be correlated with the theme of the unit. b) Template for terminology development: The template must allow for the creation of terminology framed within a lexical field.
The importance of this research lies in offering a line of materials creation based on lexical development in the field of teaching Spanish for specific purposes. This objective is based on establishing themes related to the business world so that, based on these themes, a guide for creating lexical units can be established to enrich the different competencies that a given target audience must develop. In addition to the parameters offered by the CEFR through descriptive categories and the external context of use, this study aims to offer other parameters and complementary criteria such as encounters, frequency, profitability, and productivity.
PHENOMENOLOGICAL STUDY ON THE PSYCHOLOGICAL WELL-BEING OF TAHFIZ STUDENTS
Authors: Afa Fauzul Adzim , Abdul Rahman Ahmad Badayai , Syaidatun Nazirah Abu Zahrin
Published: December 2024

This study explored the psychological well-being of huffaz students which is a crucial factor in preparing them for higher education studies. A positive psychological trait refers to six dimensions, namely: self-acceptance, positive relationships with others, autonomy, environmental mastery, purpose in life, and personal-growth. This research used a phenomenological qualitative method for thematic analysis. Participants were five hafiz students selected through snowball sampling. The findings show that their motivation in memorizing the Qur'an was to adorn their parents with a crown of glory in the afterlife. This shows a direction and purpose in life that is oriented towards happiness and well-being in the afterlife together with everlasting goodness in the worldly life. The other psychological functions also reflect a desire to grow in becoming a better person, accept one’s strengths, weaknesses, the past, manage daily activities, self-autonomy and establish positive relationships with others. In addition, doing murojaah (Qur’anic recitation) can lead to a peaceful soul. The psychological well-being of tahfiz students is crucial in preparing them become exemplary students in the higher-learning institutions.
INVESTMENT IN ENGLISH PRONUNCIATION LEARNING: A MULTIPLE CASE STUDY OF ENGLISH MAJOR STUDENTS IN MAINLAND CHINA
Authors: Yan Mei Zhang , Ahmad Shah Shanina Sharatol , Senom Fatiha
Published: December 2024

Learning English has a significant positive impact on China's growth, especially in light of the country's recent three decades of reform and opening-up policies. The standard for Chinese students' English pronunciation to be comprehensible is higher since English pronunciation is crucial for communication. However, English pronunciation is still a challenge for English major students. This article reports on multiple case studies of three Chinese English major students’ lived experiences of English pronunciation investments across different contexts, including inside and outside the classroom. The study adopts a qualitative research approach where multiple data sources such as semi-structured in-depth interviews with the participants; classroom observations, diaries, and documents, yielded thick descriptions of participants’ English pronunciation learning. The interview data was transcribed and then analyzed using N-Vivo 12. The results showed that students with varying levels of English pronunciation competency held two different opinions about English pronunciation, influencing their varied investments in English pronunciation in various circumstances. Norton's concept of investment informed these conclusions. Meanwhile, personal agency responding to particular contextual situations also impacts their strategic L2 investments. This article calls for the importance of a holistic understanding of students’ English pronunciation learning in and out of the classroom for an in-depth understanding of the complexities of learners varied English pronunciation investments.
THE ASSOCIATION BETWEEN LEARNING STYLE, ACADEMIC PERFORMANCE, AND PARTICIPATION IN CO-CURRICULAR ACTIVITIES AMONG SECOND-YEAR MEDICAL STUDENTS IN UNIVERSITI PUTRA MALAYSIA
Authors: Sa'at Azmah , Mohd. Thani Suryati , Abd. Manan Nizar
Published: December 2024

The extensive systemic module courses, defined by comprehensive study and frequent assessments, establish a demanding atmosphere for medical students. Students are required to balance their involvement in co-curricular activities. This study explores how learning preferences impact academic performance and participation in extracurricular activities among second-year medical students at Universiti Putra Malaysia. A cross-sectional study design was employed. The connection between the variables was determined through the application of Chi-Square and Fisher’s test. The Revised Two-Factor Study Process Questionnaire, comprising 20 questions, was utilised to analyse deep and surface learning approaches. To assess the level of student engagement in co-curricular activities, 9 questions from the College Learning Effectiveness Inventory and Involvement in College Activity Scale were incorporated. Assessment marks were assigned by the Faculty of Medicine and Health Sciences at Universiti Putra Malaysia to evaluate students' academic performance. Among the 87 respondents, 82.8% engaged in the co-curricular activity. A significant majority of respondents, 74.7%, indicated that the deep learning approach aids them in their studies. Regarding academic performance, 78.2% of students attained an average score. The results indicated that the learning style significantly influenced the academic performance of medical students, as demonstrated by a Fisher’s test yielding p = 0.042. The co-curricular activities of the pupils showed no significant effect on their academic performance, as indicated by a Fisher’s test value of p = 0.584. Students who often employed a superficial learning approach exhibited below-average academic performance. In contrast, students who employed deep learning approach exhibited enhanced academic outcomes.