bluuebunny/crossref_metadata_2025 huggingface dataset:
Or, The Whale by Jos Sances: Ark of the Anthropocene
Authors: Peterson Jeffrey
Published: November 2023

Abstract: This essay offers the first critical consideration of Jos Sances's 14- by 51-foot scratchboard mural, Or, The Whale (2019–20), a work of panoramic cultural-historical reference and eco-political urgency inspired by Moby-Dick . I set the mural in the context of the series of Moby-Dick illustrations that Sances executed in 2016–2018, showing how they record his formative engagement with Rockwell Kent and document his search for a visual language capable of matching the imagistic density and encyclopedic range of Melville's novel. If Rockwell Kent mediates Sances's portrait-scale encounters with Moby-Dick , C. L. R. James's Mariners, Renegades, & Castaways provides the keynote for Sances's biopolitical sequel to Melville's epic in mural form, a pictorial history of American capitalism inscribed on the body of a life-size sperm whale. Or, The Whale is a summa of Anthropocene visual art, its sweeping narrative of virtuosic hand-drawn scenes presenting densely layered constellations of images that perform the work of cultural memory, unearthing the damage done to exploited peoples and natural resources.
Coherent Homodyne Detection for Amplified Cross-Beam Electric-Field Induced Second Harmonic (ACE-FISH)
Authors: Billeau Jean-Baptiste , Cusson Patrick , Morozov Anatoli , Dogariu Arthur , Seletskiy Denis , Reuter Stephan
Published: November 2023

The Electric Field Induced Second Harmonic (E-FISH) signal sensing is commonly used as non-linear optical technique to probe electric fields inside a plasma region. Cross-beam E-FISH is being investigated to improve spatial resolution by defining the interaction volume via a controlled geometry of two overlapping non-colinear optical beams. This drastic reduction in interaction length of electric field and laser region results in a significant signal reduction. To overcome this signal reduction, we introduce coherent amplification of cross-beam E-FISH signal by mixing the low E-FISH signal with a phase-locked bright local oscillator. We demonstrate enhancement of the signal. By introducing a local oscillator we can now derive the polarity of the measured electric field through the phase of the homodyne signal. To illustrate the technique, we, for the first time, measure magnitude and the direction of electric field in a cold atmospheric pressure plasma jet, which dynamically follows the profile of the applied bias current.
External dihedral-angle error measurement based on Differential Wavefront Sensing
Authors: Yan Hao
Published: November 2023

High-precision making of cube blocks such as cube test mass, corner cube retroreflectors, and right-angle prisms faces the problem of measuring the dihedral-angle error. A new method based on optical differential wavefront sensing for external measurement of dihedral-angle error is proposed in this paper. Compared to conventional methods such as the Fizeau interferometer and autocollimation, this method has the advantages of compactness and high precision. Moreover, it can measure both arbitrary internal and external dihedral angles. A quasi-monolithic compact interferometer bench for dihedral-angle error measurement is built and tested. The experimental results show that a resolution of ± 0.15 μrad and a nonlinear residual below ± 3 μrad within a dynamic range of ± 100 μrad has been achieved.
Inferring multi-locus selection in admixed populations
Authors: Ayala Nicolas M. , Genetti Maximilian , Corbett-Detig Russell
Published: November 2023

Admixture, the exchange of genetic information between distinct source populations, is thought to be a major source of adaptive genetic variation. Unlike mutation events, which periodically generate single alleles, admixture can introduce many selected alleles simultaneously. As such, the effects of linkage between selected alleles may be especially pronounced in admixed populations. However, existing tools for identifying selected mutations within admixed populations only account for selection at a single site, overlooking phenomena such as linkage among proximal selected alleles. Here, we develop and extensively validate a method for identifying and quantifying the individual effects of multiple linked selected sites on a chromosome in admixed populations. Our approach numerically calculates the expected local ancestry landscape in an admixed population for a given multi-locus selection model, and then maximizes the likelihood of the model. After applying this method to admixed populations of Drosophila melanogaster and Passer italiae, we found that the impacts between linked sites may be an important contributor to natural selection in admixed populations. Furthermore, for the situations we considered, the selection coefficients and number of selected sites are overestimated in analyses that do not consider the effects of linkage among selected sites. Our results imply that linkage among selected sites may be an important evolutionary force in admixed populations. This tool provides a powerful generalized method to investigate these crucial phenomena in diverse populations.
Quaternary rodents of South Africa: A companion guide for cranio-dental identification
Authors: Linchamps Pierre , Avery D. Margaret , Cornette Raphaël , Denys Christiane , Matthews Thalassa , Stoetzel Emmanuelle
Published: November 2023

Rodentia is the most species-rich order among mammals. The Republic of South Africa harbours a high rodent diversity whose taxonomy and phylogeny have been extensively studied using genetic tools. Such advances have led to the establishment of new faunal lists for the country. Because rodents are frequently recovered from archaeological cave site material and owl pellets, and constitute prime material for studying both past and present environmental conditions, it is necessary to characterize their osteological remains. The skull and teeth are the most useful diagnostic skeletal elements preserved in modern and fossil accumulations. This key provides updated craniodental criteria for identifying rodent genera found in Quaternary deposits, and modern material from the Republic of South Africa, thus facilitating research on past and present rodent diversity.
Market integration and economic growth
Authors: Lyu Shiqi , Chen Zexian , Pan Simei , Liu Lianhua
Published: November 2023

This study empirically examines the interplay between market integration and economic growth across nine cities within the Pearl River Delta urban agglomeration. The findings indicate that the city cluster’s market integration negatively impacts regional economic development and has a negligible effect on the surrounding areas. In response, the research recommends the elimination of market trade barriers and a reduction in local protectionism within the city cluster. Additionally, infrastructure enhancement is essential to leverage the distinct comparative advantages of each city within the Pearl River Delta urban agglomeration. An efficient collaboration mechanism is crucial to amplify the collective economic potency of the region.
Ceramics in the wild: Deep mapping and the moon jars of Adam Buick
Authors: Chittenden Tara
Published: November 2023

Creative encounters with topography and attempts to record and represent the patina of place become of growing importance as we find ways to explore human impact on our environment and to foreground the role of craft as a geo-intervention. Ceramicist Adam Buick maintains an inherently physical connection with the landscape as he walks through the local environment and as he digs for clay and collects materials. His process forms a series of deep maps, which emerge through his ceramic work. Both a concept and a practice, ‘deep mapping’ refers to an approach in which artists, scientists and scholars attempt to capture the different meanings and textures that are associated with particular places. This article discusses the potential of deep mapping as a craft research methodology. To do so, it takes as a case study Earth to Earth (2011–12), in which Buick documents the weathering away of his raw clay moon jar using time-lapse photography. His resulting film and photographic stills tell a story of movement, time and evolution. Buick’s jars draw attention to the matter we manipulate as being subject to its own environmental conversations and witnessing of change. The deep map offers the potential for a methodology that embraces multiplicity, simultaneity and complexity, encouraging a spatially facilitated understanding of our craft stories and products. Framed as a conversation and not a statement, deep maps are inherently unstable, continually unfolding and changing in response to new data and new insights. More than a collapsed or failed pot, Buick’s jars are a deep map of an adventure.
The international vocation of the Centro Sperimentale: Oral history, personal memories and an interview with Roberto Perpignani
Authors: Zagarrio Vito
Published: November 2023

This article seeks to provide an overview of the rich history of the Centro Sperimentale di Cinematografia (CSC) in Rome, as well as show the importance of preserving its institutional legacy. First, this article details the school’s connection to the Italian State, with particular attention to its fluctuating political affiliations over the years. Next, this article considers the international vocation of the CSC and offers reflections on the school’s pertinent influence on film abroad, with a specific focus on the CSC’s connection to the Escuela Internacional de Cine y TV (EICTV) in Cuba and its lasting mark on its alumni from across the globe. All of this will be followed by an interview with Roberto Perpignani, a prestigious Italian film editor and editing instructor at the CSC.
Nuovelle vague italiana: il cinema del nuovo millennio, Vito Zagarrio (2021)
Authors: Bowen Edward
Published: November 2023

Review of: Nuovelle vague italiana: il cinema del nuovo millennio, Vito Zagarrio (2021)

Venice: Marsilio, 336 pp.,

ISBN 978-8-82970-374-6, p/bk, €24
9/11 Revisited
Authors: Gonçalves Diana
Published: November 2023

Over the last two decades, 9/11 established itself as an object of interest for the academia, news outlets and the arts, generating a multitude of cultural artefacts that allow us, collectively, to revisit the event, reread it in different circumstances, and, ultimately, rewrite it.

Employing rewriting as a metaphor for a continuous process of representation and revision, this article explores the remediation of the terrorist attack of 2001 and how representations of the event across time and different media help consolidate its place in cultural memory. With this purpose in mind, it analyzes John Updike’s Terrorist (2006) and TV series Designated Survivor (2016) and discusses them as after-effects of 9/11.
Grenzen, Geist und Gestus
Authors: Lopes João
Published: November 2023

No contexto da literatura intercultural de língua alemã na contemporaneidade, a obra da japonesa Yoko Tawada, sediada em Berlim, ocupa um lugar de destaque. Desde finais dos anos 80, a sua obra tem crescido continuamente tanto na língua japonesa como na alemã: é uma obra bilingue que se move entre as culturas do ocidente e do extremo oriente. A qualidade multíplice da obra de Tawada, no entanto, é irredutível à sua matéria-prima – a língua –  refletindo-se também na variedade de géneros de que é feita, desde a prosa ao texto poético, do texto dramático aos poetológico e ensaístico. A obra Talisman de Yoko Tawada, publicada em 1996 e ainda sem tradução em Portugal, é constituída de 16 ensaios literários. Atentaremos em dois temas com especial relevância nessa obra: os temas da tradução e do significado do corpo e da sua representação na obra de Tawada. No corpus de ferramentas analíticas, é importante ter em conta não só uma noção fenomenológica dos vários temas tratados, mas também uma noção antropológica da escrita de Tawada: a antropologia, e a escrita, como uma única forma simultânea de tradução e reescrita. Em suma, a tradução como transposição constante de um horizonte cultural, como facto(r) antropológico base do contacto entre culturas,. Traçar-se-á alguns paralelos entre as reflexões do filósofo José Gil, na sua obra Metamorfoses do Corpo (1980), e Talisman. Adicionalmente, este artigo poderá (tanto gostaríamos de augurar) cumprir a função de ponto de partida, e de diálogo com, a obra de uma escritora contemporânea de relevo que carece ainda de tradução em Portugal.
Methicillin-resistant Staphylococci in canine pyoderma in Thailand
Authors: Putriningsih Putu Ayu Sisyawati , Phuektes Patchara , Jittimanee Suphattra , Kampa Jaruwan
Published: November 2023

Background and Aim: Methicillin-resistant Staphylococci (MRS) seriously threatens animal and human health. Repeated antibiotic use allows the bacteria to develop resistance to several antibiotic classes and become multidrug-resistant (MDR). Canine pyoderma, a common skin condition in dogs, is mainly caused by Staphylococci, including MRS. Detecting this infection in all canine populations is crucial to develop a proper preventive plan. This study estimated the prevalence, antibiogram, and risk factors of MRS in canine patients at a referral animal hospital in Khon Kaen, ThailandMethicillin-resistant Staphylococci (MRS) seriously threatens animal and human health. Repeated antibiotic use allows the bacteria to develop resistance to several antibiotic classes and become multidrug-resistant (MDR). Canine pyoderma, a common skin condition in dogs, is mainly caused by Staphylococci, including MRS. Detecting this infection in all canine populations is crucial to develop a proper preventive plan. This study estimated the prevalence, antibiogram, and risk factors of MRS in canine patients at a referral animal hospital in Khon Kaen, Thailand.

Materials and Methods: Skin swabs and relevant information were collected from 56 client-owned dogs that visited the hospital from September 2019 to September 2020. Staphylococci colonies were subjected to molecular identification and antibiotic susceptibility tests using an automated system (VITEK® 2). These colonies were also genetically identified using multiplex-polymerase chain reaction (PCR) and sequencing. The mecA gene, encoding methicillin resistance, was detected using simplex-PCR. The risk factors of MRS infection and their association with MRS infection were analyzed using logistic regression and the Chi-square test, respectively.

Results: The prevalence of MRS was found to be 35.7% (20/56 dogs). By species, methicillin-resistant Staphylococcus pseudintermedius was found in 24 of 104 isolates (23.1%), and all samples were MDR. Receiving systemic antibiotics in the past 6 months was a major risk factor associated with MRS infection (p < 0.05; odds ratio (OR) > 1). In addition to the MRS isolates, the mecA gene was also detected in methicillin-susceptible Staphylococci isolates. This might be because of the high expression of blaI, and mutations in c-di-AMP cyclase DacA, RelA, and Fem proteins.

Conclusion: A high prevalence of MRS and MDR was observed in the studied population, which might be potentially due to improper antibiotic use by the owners and horizontal transfer of drug-resistance genes.

Keywords: antibiogram, methicillin-resistant, prevalence, risk factor, Staphylococci, Thailand.
Stability of African swine fever virus genome under different environmental conditions
Authors: Zheng Wei , Xi Jiahui , Zi Yin , Wang Jinling , Chi Yue , Chen Min , Zou Qingjian , Tang Chengcheng , Zhou Xiaoqing
Published: November 2023

Background and Aim: African swine fever (ASF), a globally transmitted viral disease caused by ASF virus (ASFV), can severely damage the global trade economy. Laboratory diagnostic methods, including pathogen and serological detection techniques, are currently used to monitor and control ASF. Because the large double-stranded DNA genome of the mature virus particle is wrapped in a membrane, the stability of ASFV and its genome is maintained in most natural environments. This study aimed to investigate the stability of ASFV under different environmental conditions from both genomic and antibody perspectives, and to provide a theoretical basis for the prevention and elimination of ASFV.

Materials and Methods: In this study, we used quantitative real-time polymerase chain reaction for pathogen assays and enzyme-linked immunosorbent assay for serological assays to examine the stability of the ASFV genome and antibody, respectively, under different environmental conditions.

Results: The stability of the ASFV genome and antibody under high-temperature conditions depended on the treatment time. In the pH test, the ASFV genome and antibody remained stable in both acidic and alkaline environments. Disinfection tests revealed that the ASFV genome and antibody were susceptible to standard disinfection methods.

Conclusion: Collectively, the results demonstrated that the ASFV genome is highly stable in favorable environments but are also susceptible to standard disinfection methods. This study focuses on the stability of the ASFV genome under different conditions and provides various standard disinfection methods for the prevention and control of ASF.

Keywords: African swine fever, enzyme-linked immunosorbent assay, quantitative polymerase chain reaction, standard disinfection methods, virus stability.
Preoperative Intravenous Iron Reduces the Need for Blood Transfusion in Colorectal Cancer Surgery
Authors:   Sunvalley Communication, LLC, Hofland Peter
Published: November 2023

Approximately 30% to 60% of the general surgical population is commonly affected by preoperative anemia*. This form of anemia is associated with an increased risk of postoperative morbidity, prolonged hospital stay, and impaired recovery.[1] Hence, planning potentially high-blood-loss surgery, especially patients with preoperative anemia, requires proper advance planning to allow time for adequate identification, assessment, and management to avoid adverse events.
Food safety-based evaluation of 3D printed objects
Authors: Kailo Geremew Geidare , Gáspár Igor , Abdisa Kenbon Beyene , Pajčin Ivana , Vlajkov Vanja , Jokić Aleksandar , Cvetković Dragoljub , Grahovac Jovana , Koris András
Published: November 2023

The 3D printing technology involves a digital manufacturing machine that produces three-dimensional objects according to designs created by the user via 3D modelling or computer-aided design/manufacturing (CAD/CAM) software. This work analyzes the processing timeline of the filament (material for 3D printing) from unboxing to the extrusion trough the nozzle. It is an important task to analyze the growth of bacteria on 3D printed surface and in gaps between the layers. By default, 3D printed object is not food safe after longer usage and direct contact with food (even though the food safe filaments were used), but there are solutions for this problem. We tested several methods to prevent or reduce the emerging microbial contamination. These methods are coating with epoxy resin, using antimicrobial and high temperature-resistant filaments. The best results were obtained by epoxy resin coating, where the object was cleanable like any other injection molded plastic object with smooth surface. Very good results have also been obtained by boiling the objects, and it is good to see that nowadays more and more special filaments have food safe certificate and can withstand boiling temperatures too. Using antibacterial filaments reduced bacterial colonies by 80%, which is not a perfect solution.
Effect of plant extracts on some quality parameters of canned mixed sweet corn-red bean
Authors: Máté Balázs , Góczán Bálint , Máté Mónika
Published: November 2023

The leading export product of Hungary is canned sweetcorn, which is available in single-component or blended varieties with a focus on colour retention, for wich the food industry mainly uses ascorbic acid and EDTA in the brine of canned vegetable. Thoughtful customer behavior is pushing the food industry to switch to natural plant extracts instead of synthetic additives. In order to investigate if acerola plant extract is suitable as a replacement for ascorbic acid, we investigated the potential uses of two varieties of acerola extract in three different concentrations in the case of canned mixed sweet corn and red bean. After production, and after 1 week of thermostating at 55°C and storage at room temperature for 4 and 8 weeks, the changes in pH value, salt concentration, water-soluble dry matter content, colour, total polyphenol content, and antioxidant capacity of the brine were all evaluated in this experiment. The results showed that both acerola extracts were promising in fixing the colour, with the higher application of the first extract and the lowest and highest dosage of the second extract showing the best results. During storage, the polyphenol content and antioxidant capacity of some samples decreased slightly compared to their initial values.
Queen’s Communities and Place: towards the alignment of higher education place-based strategy with local need
Authors: Higgins Kathryn , Murtagh Brendan , Gallagher Tony , Grounds Andrew , Robinson Gareth , Loudon Emma , Duffy Gavin , Brady Áine , Morse Amanda Dylina , Hargey Fionntán , Doherty Moira
Published: November 2023

Serving as a key delivery mechanism for Queen’s University Belfast’s (UK) strategic commitment to social and civic responsibility and economic prosperity, Queen’s Communities and Place is a research initiative based on engagement and partnership between communities, policy makers and academics. Combining academic expertise and experiential knowledge from the community, Queen’s Communities and Place uses a ‘place-based’ approach to co-create new solutions to address persistent physical, economic and social challenges, as well as to strengthen the engagement between Queen’s University and its surrounding communities. Queen’s Communities and Place launched in November 2021 with our anchor partner in the Market community in inner south Belfast. We are also working collaboratively with projects and communities in the north, west and east of Belfast across a range of sectors and academic disciplines. We have sought to challenge existing frameworks, with evidence-led, data-driven approaches to build interventions and practices together to identify what might work better here for communities to thrive. Capturing three perspectives – academic, community and local government – this co-written reflective article details the experience of establishing a working partnership with our pilot community, and provides some examples of how our approach is working to address the challenges on the ground to date.
Propiedades psicométricas del CESQT, versión Desencanto Profesional (CESQT-DP) en una muestra multiocupacional colombiana
Authors:   Departamento de Administración de Empresas, Pontificia Universidad Javeriana, Bogotá, Colombia, Umaña Ruiz Camila , Gómez Ortiz Viviola ,   Departamento de Psicología, Universidad de los Andes, Bogotá, Colombia, Gil-Monte Pedro R. ,   Unidad de Investigación Psicosocial de la Conducta Organizacional (Unipsico), Universitat de València, Valencia, España, Gil-LaOrden Pedro ,   Unidad de Investigación Psicosocial de la Conducta Organizacional (Unipsico), Universitat de València, Valencia, España, Segura Camacho Sebastián ,   PRAX, Envigado, Colombia
Published: November 2023

Introducción/Objetivos: existen múltiples instrumentos para evaluar el Síndrome de Quemarse por el Trabajo (burnout) en profesiones relacionadas con el servicio a otras personas. Sin embargo, hay limitaciones metodológicas para estudiar este fenómeno en poblaciones de trabajadores generales. El presente estudio tiene como objetivo ofrecer evidencia de la validez y fiabilidad del “Cuestionario para la Evaluación de Quemarse por el Trabajo”, en su versión Desencanto Profesional (CESQT-DP), la cual puede ser aplicada a trabajadores de cualquier ocupación, empleando para ello una muestra colombiana. Método: se efectuó un estudio psicométrico con una muestra multiocupacional de 2991 trabajadores. Se realizaron análisis factoriales confirmatorios, análisis de invarianza por sexo, validez convergente y discriminante y de consistencia interna. Resultados: los resultados muestran la estructura factorial, replicando las cuatro dimensiones hipotetizadas; se evidencia invarianza del instrumento según el sexo, y muestras de la validez convergente, discriminante y fiabilidad. Discusión: el CESQT-DP cuenta con altas calidades psicométricas y puede emplearse para evaluar el burnout en empleados en cualquier ocupación en Colombia.
RELIABILITY ANALYSIS OF PRECISION GEARS WITH MODIFIED INITIAL TOOTH CONTOUR
Authors: Seregin A. A.
Published: November 2023

The article presents the results of a theoretical study that was conducted as part of the search for solutions to the problems of calculating the operational reliability of gears of a new generation that have a significant deviation in the geometry of the profile of the teeth and the entire engagement from the standard initial contour. A method of plotting the wear of the working surfaces of gear teeth has been developed. The essence of the method is that the equation of the worn surface can be obtained by calculating the full variational derivative of the functional of the energy action of wear. Since wear reduces accuracy, the method is used to calculate the probability of failure-free operation of precision gears by the express method. The proposed article is one of the first works on the calculation of the operational reliability of precision gears with teeth profiled by the involute epitrochoid.
BASIC PRINCIPLES OF MODELING AND THEIR APPLICATION IN TECHNICAL TASKS
Authors: Nartova L. G. , Leonova S. A. , Anamova R. R. , Klychnikova M. V.
Published: November 2023

The process of creating a model as a conceptual representation of some phenomenon is called modeling. The physical, geometric, functional, or geometric properties of an object can be represented as a model. Technical, or subject-based, modeling is often used in solving practical problems in science. The models used for experiments should be geometrically similar to the corresponding real objects. Thus, using the method of similarity theory, when we are trying to solve technical problems it is relevant to study complex processes on simpler models, and therefore the study of modeling principles and options for their application. The paper describes the characteristics of models of various levels and provides examples of their application, classification of multiple forms of modeling, ways to display the immanent properties of figures. The importance of initial conditions in the fundamental choice of the model and its use is emphasized. Generalized modeling algorithms of different levels and their application in a number of technical tasks are presented. The projection-coordinate principles of constructing geometric models are described in detail. The general characteristics of models of different classes are given based on their initial parameters: coordinate, projection, nomographic. Coordinate-projection models based on the classical scheme of G. Monge are described. The characteristics of modeling processes based on parameters having different geometric meanings are given. Theoretical reasoning is confirmed by concrete examples from the field of aircraft building. Examples of the use of projection models in images of surfaces of wing and tail elements are shown. The figures contain a sufficient level of information about the role and significance of production parameters and their use in practice.
FORMATION МODEL OF A CRACK IN A ROCK WITH NON-STATIONARY SHAPE PARAMETERS DURING HYDRAULIC FRACTURING
Authors: Trukhanov K. A.
Published: November 2023

Currently, hydraulic fracturing (HF) is used for hard-to-recover hydrocarbon reserves. As a result of hydraulic fracturing, cracks are formed in productive formations. To select the technological parameters of hydraulic fracturing, it is necessary to be able to calculate the fracture shape parameters – length and width. In this regard, the creation of a mathematical model for calculating the parameters of the shape of a crack in a rock is an urgent task. The article presents a mathematical model for the development of a crack in a rock, taking into account the non-stationary parameters of its shape and the flow regimes of the hydraulic fracturing fluid. Also, the proposed mathematical model, unlike the existing ones, takes into account the variable nature of the coefficient of fluid leakage into the reservoir, and the criterion for opening a new rock element. The paper presents the results of a numerical experiment and compares the proposed mathematical model with the results of a numerical experiment. The scientific novelty of the work is the proposed mathematical model of a crack in the rock, taking into account the non-stationary parameters of its shape. The mathematical model, in contrast to the existing ones, is based on the differential equation of motion of the elementary rock element of the opening fracture, taking into account the leakage of hydraulic fracturing fluid into the rock formation. The recommendation for application in engineering practice of the obtained mathematical model is the obtained values of the crack shape, which are comparable with numerical experiments.
EVALUATION OF THE PRODUCTIVITY OF PRODUCTION SYSTEMS, TAKING INTO ACCOUNT THE COSTS OF NECESSARY RESOURCES
Authors: Kondakov A. I. , Zaitsev A. V.
Published: November 2023

Modem machine-building production is in urgent need of a methodology for determining productivity, taking into account the costs of the necessary production resources. An attempt has been made to create such a technique. The article outlines the main provisions of this technique. It is shown that productivity is a criterion for the efficiency of the technological system’s use of production resources in the manufacture of products. The main resource for increasing labor productivity is the improvement of the structural and parametric characteristics of the technological operations performed. The proposed calculated dependencies can be used at various stages of production preparation.
FUNDAMENTALS OF THE THEORY OF TRANSPORT MACHINES WITH A TRACTION LOAD-CARRYING FACILITY. LECTURE 10
Authors: Nizhegorodov A. I.
Published: November 2023

This article presents materials of the 10th lecture on the subject “Theory of load-lifting, transport, construction and road equipment and facilities”. This lecture covers theoretical questions concerning the calculation of the performance of continuous transport systems, including the determination of shear energy, the power required to move bulk materials and to move cargo horizontally and along inclined sections, as well as the starting mode of a transporting machine equipped with a cargo hauling capacity. In addition, a theory for calculating the performance of machines performing batch transfer of material is considered, including the power required to move batches of load along an inclined or vertical trajectory of portions to the load, etc.
THE KINEMATIC AND STRESS STATE OF THE WORKPIECE AT CONSTRAINED EXTRUSION OF RECTANGULAR BRACKETS. Part 1
Authors: Vorontsov A. L. , Karpov S. M.
Published: November 2023

On the basis of the complete system of equations of the theory of plastic flow, the beginning of solving the problem of determining the kinematic and stress states of the workpiece with constrained extrusion of rectangular brackets under conditions of plane deformation in the general case of misaligned position of the punch and matrix is presented. The determination of the flow rates and stresses in the area of plastic deformation located under the forming thick wall of the rectangular bracket has been carried out. Formulas are obtained that are necessary to determine the main technological parameters of the process of extrusion of rectangular brackets with a relatively thin horizontal bridge.
THE KINEMATIC AND STRESS STATE OF THE WORKPIECE AT CONSTRAINED EXTRUSION OF RECTANGULAR BRACKETS. Part 2
Authors: Vorontsov A. L. , Karpov S. M.
Published: November 2023

On the basis of the complete system of equations of the theory of plastic flow, the beginning of solving the problem of determining the kinematic and stress states of the workpiece with constrained extrusion of rectangular brackets under conditions of plane deformation in the general case of misaligned position of the punch and matrix is presented. The determination of the flow rates and stresses in the area of plastic deformation located under the forming thick wall of the rectangular bracket has been carried out. Formulas are obtained that are necessary to determine the main technological parameters of the process of extrusion of rectangular brackets with a relatively thin horizontal bridge.
THE KINEMATIC AND STRESS STATE OF THE WORKPIECE AT CONSTRAINED EXTRUSION OF RECTANGULAR BRACKETS. Part 3
Authors: Vorontsov A. L. , Karpov S. M.
Published: November 2023

On the basis of the complete system of equations of the theory of plastic flow, the beginning of solving the problem of determining the kinematic and stress states of the workpiece with constrained extrusion of rectangular brackets under conditions of plane deformation in the general case of misaligned position of the punch and matrix is presented. The determination of the flow rates and stresses in the area of plastic deformation located under the forming thick wall of the rectangular bracket has been carried out. Formulas are obtained that are necessary to determine the main technological parameters of the process of extrusion of rectangular brackets with a relatively thin horizontal bridge.
THE KINEMATIC AND STRESS STATE OF THE WORKPIECE AT CONSTRAINED EXTRUSION OF RECTANGULAR BRACKETS. Part 4
Authors: Vorontsov A. L. , Karpov S. M.
Published: November 2023

On the basis of the complete system of equations of the theory of plastic flow, a solution to the problem of determining the kinematic and stress states of a workpiece with a completely constrained extrusion of rectangular brackets under conditions of plane deformation in the general case of misaligned arrangement of the punch and matrix is presented. The determination of the power and geometric parameters of the process has been carried out. Formulas are obtained that are necessary to determine the main technological parameters of the process of extrusion of rectangular brackets with a relatively thin horizontal bridge.
TESTING OBJECT’S MATERIAL PHYSICAL PROPERTIES SIMULATION IN THE INDUSTRIAL RADIO-GRAPHY VR ENVIRONMENT
Authors: Kovshov E. E. , Kuvshinnikov V. S.
Published: November 2023

According to the current trends in education aimed within digitalization of didactic materials along with learning and knowledge control process itself. Increased accessibility of educational programs with remote learning and related services, changes also affect the field of technical specialists’ professional training. There are two main goals pursued during the training: increasing accident and emergencies readiness, and increasing the level of practical technical skills for performing a wide range of tasks. Models used in software VR-tools for simulation of the tested items’ materials physical properties and primary information carriers are presented. Dependence of the attenuation parameters of sample’s material on hardware settings for digital simulation specialists training to achieve the required quality of testing is analyzed. Simulation examples of the various testing schemes of welded steel joint samples are given.
FEATURES OF THE FORMATION OF THE SPATIAL TOPOLOGY OF THE FIBER-OPTIC SYSTEM OF MONITORING PILE FOUNDATIONS IN THE CONDITIONS OF THE FAR NORTH
Authors: Fedotov M. Yu. , Larin A. A.
Published: November 2023

The article substantiates the relevance of the widespread introduction of fiber-optic systems for monitoring the stress-strain state of engineering structures operated in the Far North. The results of experimental researches illustrating the technological aspects of the implementation of a monitoring system on a pile foundation of an industrial building are presented. A design based on a steel hexagon with installed fiber-optic sensors (FOS) of deformation and temperature based on fiber Bragg gratings (FBG) was chosen as a measuring device (MD) installed on a monitoring object (OM). The results of the development of the spatial topology, the switching scheme and the implementation of the proposed technical solution on the pile foundation of the OM, operated in the Norilsk industrial region, are shown.
ELECTRONICS OF RUSSIA – 2022
Authors: Matveev V. I.
Published: November 2023

The article provides a brief description of the first exhibition of electronic products made only in Russia. The purpose of the exhibition is import substitution and acceleration of the development of own technologies for the production of elements and products of modern electronics. The leading Russian companies, their main specialization and examples of modern electronic and radio-electronic products are presented.
ABOUT SOME POSSIBILITIES OF INCREASING THE SENSITIVITY OF AN ANGLE PROBE USING A MATCHING LAYER BETWEEN A PIEZOPLATE AND A PRISM
Authors: Danilov V. N.
Published: November 2023

Based on computer modeling, the possibility of increasing the sensitivity of an angle probe when using a quarter-wave matching layer between a prism and a piezoplate with an optimal characteristic impedance of epoxy resin and phenoplast with tungsten filler and textolite is shown and quantitative estimates of such an increase are given in comparison with the case of the absence of a matching layer. The evaluation of the possibilities of using a quarter-wave metal matching layer made of magnesium and aluminum (for the nominal frequency of the 2.5 MHz probe) to increase the sensitivity was carried out. In the case of such an aluminum layer, the signal spectrum has two local maxima due to the relatively large layer impedance compared to the optimal value, which leads to distortion of the pulse shape and affects its duration. The presence of two spectrum maxima is due to the fact that the piezoplate and the matching layer are two coupled oscillatory systems with a coupling coefficient exceeding the value of the inverse acoustic Q-factor of the matching layer, decreasing with increasing its characteristic impedance.
METHODS FOR THE FORMATION OF SPATIAL TOPOLOGY AND INTERROGATION OF FIBER-OPTIC SENSORS FOR DIAGNOSTICS OF COMPOSITE STRUCTURES (Review)
Authors: Fedotov M. Yu.
Published: November 2023

The paper formulates general requirements for the formation of spatial topologies of quasi-distributed fiber-optic systems of embedded monitoring based on fiber Bragg gratings for monolithic and three-layer structures made of polymer composite materials. The main types of spatial topologies of fiber-optic sensors for the implementation of an effective quasi-distributed system of embedded diagnostics of composite structures are considered. The main methods for interrogating arrays of fiber-optic sensors that form a quasi-distributed system of embedded diagnostics of composite structures are analyzed, an overview and analysis of the technical characteristics of foreign and domestic interrogation equipment is given. It has been established that for practical applications, taking into account the relative simplicity of physical implementation and the availability of interrogation equipment, it is advisable to use a mixed topology of fiber-optic sensors, which includes elements of serial and star topologies, with he spectral channel separation method being the most optimal.
METHODS, MEANS AND TECHNOLOGY FOR IMPROVING THE EFFICIENCY OF VIBRATION DIAGNOSTICS OF GAS PUMPING UNITS
Authors: Reshetov A. A. , Fedorov D. I.
Published: November 2023

Computational and experimental methods, tools and technology for monitoring the technical condition of gas pumping units according to the parameters of torsional vibrations are proposed. To identify risk-sensitive parts of gas pumping units, energy forms of the machine's own torsional vibrations of the shaft line are used. The results obtained made it possible to reduce operating costs.
AN EXAMPLE OF DIAGNOSTICS OF A TECHNOLOGICAL CUTTING SYSTEM WHEN MILLING MATERIALS OF HIGH HARDNESS
Authors: Mokritskii B. Ya. , Kosmynin A. V. , Skripilev A. A. , Еrshova T. B. , Sablin P. A.
Published: November 2023

There is a growing demand for materials that have a layer of high hardness applied on a soft base. Technologies for obtaining such materials have been developed. One of the technologies is based on the use of surfacing from specialized powder wire. The hardness of such a surfacing is HRC 65. Accordingly, there are difficulties in processing such surfacing. The paper considers the features of milling such surfacings with a face mill with mechanical fastening of replaceable carbide plates. The purpose of the work is to improve the efficiency of the milling cutters and to identify a method by which it is convenient and reliable to diagnose the condition of the cutting plates of the milling cutter. The paper shows that the goal is achieved by using the acoustic emission method, in particular by using the parameter "total count of the number of acoustically active events".
ACTIVE TECHNOLOGICAL CONTROL OF THE THICKNESS AND UNIFORMITY OF SPRAYING OF THIN FILMS
Authors: Obraztsov D. V. , Chernyshov V. N.
Published: November 2023

A method is proposed for active technological control and management of the deposition of thin conductive films, which makes it possible to obtain films of a given and uniform thickness over its entire surface. In the control method, wire resistive witnesses are used as primary measuring transducers, which are installed in specified areas of the molecular flow of the sprayed substance. Wire resistive witnesses change resistance depending on the thickness of the film deposited on them. In the process of deposition, according to information from wire witnesses, the molecular flow from the evaporator in certain areas is blocked by electromechanical shutters, which ensures uniform thickness of the deposited film. Experimental verification of the developed method and the system implementing it showed a decrease in the spread of film thickness over the entire surface of the substrate from 7 to 2 % on average.
STUDY OF THE PARAMETERS OF BOTTOM ECHO IN THE TRANSITION FIELD OF THE NORMAL PROBE
Authors: Danilov V. N.
Published: November 2023

By the method of computer simulation of the bottom echo in the transition field of the normal probe, calculations of frequency spectra and pulses for distances equal to 1 and 2 near field of the probe with a nominal frequency of 1.8 and 2.5 MHz were carried out. Calculations were carried out using the spectral density of the function describing the change in the complex amplitude of the bottom echo to the boundary of the near field of the probe. It is found that the change in the amplitude of the pulses at the maximum of the envelope for these distances varies almost the same as in the DGS-diagram of the bottom echo, while the difference in pulse shapes is not very significant. The results of the experiments generally confirmed the results of calculations taking into account the error of the initial data and the features of computer modeling.
QUALITY CONTROL OF TRANSFORMER OIL BY GAS-LIQUID CHROMATOGRAPHY
Authors: Lyutikova M. N. , Korobeynikov S. M. , Ridel A. V.
Published: November 2023

In oil-filled high-voltage equipment (power transformers, reactors, current and voltage transformers, switches and bushings), transformer oil performs a number of important functions (heat-removing, insulating, arcing, protective, information and diagnostic). With prolonged use in equipment, the oil undergoes oxidation, which leads to a deterioration in its dielectric properties. In order to slow down the process of oil oxidation and extend the life of liquid insulation, an antioxidant additive ionol (2,6-di-tert-butyl-4-methylphenol) is added to it. Using the method of chromato-mass spectrometry, it was found that ionol decomposes during its consumption with the formation of other phenolic-type compounds, which also exhibit antioxidant activity. In addition, the identified degradation products of ionol can serve as indicators of the state of the liquid insulation as a whole. However, the method of chromatomass spectrometry, for certain reasons, is not used in power grid laboratories. Therefore, in this paper, we propose a method for determining the decomposition products of ionol in their joint presence in operating oil, based on the method of gasliquid chromatography with a flame ionization detector. The implementation of this technique does not require significant investments. In addition, new boundary values of ionol have been established, which should be taken into account when planning the addition of ionol to operating oil in order to prevent a sharp deterioration in its insulating properties.
Health Expenditure and Quality of Life of the Population in the Regions of the Russian Far East: A Comparative Analysis
Authors:   Economic Research Institute FEB RAS, Domnich Yegor
Published: November 2023

The study carried out an economic grouping of 30 regions of the Russian Federation, on the basis of which a comparative analysis of cost indicators of the level of healthcare and indicators of the quality of life of the population in 2021 was carried out. Based on the univariate analysis of variance (ANOVA) and the Tukey – Kramer a priori test, it was determined that the regions of the Far East are statistically significantly different from the rest economically similar Russian regions in terms of government spending on health care, average salaries of doctors and life expectancy. It has been established that the level of healthcare financing in regions with similar levels of economic development is statistically significantly associated with this level. It is concluded that state medicine is less effective in the Far East compared to the rest of Russia. The thesis about the general underfunding of state and commercial medicine is substantiated. It is shown that in terms of the quality of life of the population, regions with an average income, but a relatively developed economic structure, are significantly ahead of both rich, but poorly developed, and poor, depressed regions