bluuebunny/crossref_metadata_2025_split huggingface dataset:
EFFECT OF NITROGEN ON THE THERMAL DEFORMATION BEHAVIOR OF MARTENSITIC STAINLESS BEARING STEEL
Authors: Song Yaohui , Lu Yibo , Li Yugui , Sun Haosong , Li Huaying , Xu Hui , Wang Yihang 
Published: December 2024

The thermal deformation behaviors of martensitic stainless bearing steels (0.16N, 0N) in the temperature range 850–1150 °C, strain rate 0.01–10 s–1, and deformation of 60 % were studied using a single-pass compression experiment. After adding 0.16 % nitrogen, the peak stress of the martensitic stainless bearing steel increased under all thermal forming conditions, and the average peak stress increased by about 33.724 MPa. The strain-rate sensitivity diagram, power dissipation diagram, instability factor diagram, and thermal processing diagram under different strains were constructed based on the stress-strain curve. The thermal deformation activation energy under different strains was constructed and combined with a metallographic structure analysis. The results show that under the same conditions, the occurrence of DRX in 0.16N bearing steel is less than that of 0N bearing steel, but the grains are finer than those of 0N bearing steel.
Unravelling Students’ Attitudes Toward Lifelong Exercise
Authors: Evangelou Efstathia , Digelidis Nikolaos , Krommidas Charalampos 
Published: December 2024

Background. A central purpose of learning in physical education (PE) is to facilitate students’ physical development and competence that determine lifelong engagement in exercise. Therefore, exploring and understanding students’ attitudes toward lifelong exercise contributes significantly to achieving it.

Objectives. Two studies examined students’ attitudes toward lifelong exercise. The first study focused on using social and personal variables as predictors. The second study involved a repeated measures design to determine if there were differences in attitudes as students progressed to the next grade and between schools. Additionally, the study aimed to investigate whether there were variations in attitudes based on the students’ physical activity levels.

Materials and methods. In the first study, 752 students of the 7th and 10th grades participated, representing 47 classes from 14 schools. Then, after conducting a repeated measures analysis one academic year later, from the initial sample, 460 students formed two cohorts, comprising Grades 7–8 and 10–11. All factors were internally consistent and well-defined by the variables. The first study used hierarchical linear regression to ascertain whether social and personal variables could be identified as predictors of students’ attitudes toward lifelong exercise. The second study used a mixed ANOVA to assess differences in students’ attitudes, measuring at two time points and between schools. Furthermore, a one-way ANOVA was performed to determine whether there were variations depending on students’ physical activity level.

Results. According to the findings of this study, personal variables eliminated the significance of social variables, with task orientation having the highest beta (.33). The results also revealed a significant interaction between measurements in Grades 7 and 8, as well as between schools. Moderately and highly active students had more positive attitudes than sedentary students in both cohorts.

Conclusions. Task orientation and personal progress should be emphasized to increase students’ motivation. Nevertheless, a task-supportive climate could improve their intrinsic motivation for lifelong exercise.
Earthquake Source Spectra Estimates Vary Widely for Two Ridgecrest Aftershocks Because of Differences in Attenuation Corrections
Authors: Shearer Peter M. , Vandevert Ian , Fan Wenyuan , Abercrombie Rachel E. , Bindi Dino , Calderoni Giovanna , Chen Xiaowei , Ellsworth William , Harrington Rebecca , Huang Yihe , Knudson Trey , Roßbach Meggy , Satriano Claudio , Supino Mariano , Trugman Daniel T. , Yang Hongfeng , Zhang Jiewen 
Published: December 2024

ABSTRACT
Differences in stress-drop estimates among groups of scientists for the same earthquakes suggest disagreement in the shape of the source spectra that are used to measure corner frequency. A critical step in characterizing source spectra involves applying empirical corrections for site effects and the loss of high-frequency energy that occurs along the source–receiver path. As part of the Ridgecrest stress-drop validation study, we compare path-corrected source spectra among different methods for two nearly collocated M 3 earthquakes and investigate whether systematic differences in the applied path corrections are affecting corner-frequency estimates. We find substantial disagreements in the path corrections, which are well approximated with a simple exponential function related to the strong ground motion parameter κ. These κ differences are strongly correlated with corner-frequency estimates for path-corrected spectra, suggesting they are a large source of systematic differences in corner frequency (and inferred stress drop) among the methods, reflecting varying trade-offs between the source and path contributions to observed spectra. Because each method presumably fits the data it uses sufficiently well, these results indicate the limitations of existing purely empirical techniques to estimating path corrections and the need for new approaches.
Ocupações Irregulares em Áreas de Proteção Permanente em Vicente Pires, Distrito Federal
Authors: Ulhoa Cobalchini Ana Beatriz , Marques de Araújo Giselle , Matias Rosemary 
Published: December 2024

O Setor Habitacional Vicente Pires (SHVP) é uma cidade satélite do Distrito Federal e foi iniciado por ocupações irregulares de imóveis de alto padrão, muitas em Áreas de Preservação Permanente (APP). Assim, podendo gerar impacto negativo nas APPs do SHVP, fato este que investigou este artigo. O método baseou-se em legislação, bases de dados oficiais de domínio público e cedidas livremente por órgãos distritais e ferramentas de geoprocessamento para identificar APPs de rios e nascentes ocupadas. A metodologia de identificação das APP foi de uma faixa marginal de 30 metros a partir dos leitos centrais dos córregos Vicente Pires e do Valo (APPs de rios), conforme Código Florestal; e raio de proteção de 50 metros das nascentes, da origem. A hipótese da pesquisa supôs haver ocupações irregulares situadas em áreas de APP do SHVP, sendo confirmada. O motivo teria sido a falta de conhecimento técnico dos ocupantes e a fiscalização incipiente do Governo durante o início da modificação de vocação urbanística deste Setor Habitacional, o qual era inicialmente definido pelo planejamento urbano regional como agrário e de baixa densidade passou para urbano durante sua ocupação ilegal. Concluindo-se, portanto, que as áreas de APPs de rios estariam sofrendo pressão antrópica e sendo ocupadas de maneira irregular, segundo a legislação ambiental brasileira.
Palavras-chave: Sustentabilidade. Políticas Públicas Ambientais. Ocupação Irregular do Solo.

Abstract
The neighborhood called Setor Habitacional Vicente Pires (SHVP) was started based in irregular occupations of expensive houses, some in permanently protected areas (APP). In this case, could exists risks of negative environmental impacts, and this article investigated the espacial distribution of these APP, to comprove this. The methodology was based in geoprocessing tools, legislation, and database gived of Government about APP and based on the brazilian law called Codigo Florestal. The river´s APP was made in a large of 30 meters of rivers Vicente Pires and Do Valo. And about near water resources, was add a radius of 50 meters, from the middle of each one. The hypothesis is that SHVP has much irregulars’ occupations in APP, and this was confirmed. This scenario was motivated because the community haven´t knowledge and the Government don´t policed them initially. The reason appears to be the occupants' lack of technical knowledge and the government's inadequate oversight during the early stages of the urbanistic vocation modification of this Residential Sector. Initially designated by regional urban planning as agricultural and low-density, it transitioned to urban use during its illegal occupation. Consequently, it is concluded that the APP areas of rivers are experiencing anthropogenic pressure and being occupied irregularly, according to Brazilian environmental legislation.
Keywords: Development. Environmental of Public Policies. Irregular Occupations of Territory.
O Processo Criativo em Arte-educação: O Objeto artístico na Era do Antropoceno
Authors: Nogueira Ramos Emanoel , Coutinho Francisco Angelo 
Published: December 2024

Este trabalho buscou entender o processo criativo em Arte-educação como um caminho para o estudanteser tocado pelo objeto artístico e refletir sobre o Antropoceno. Discutiu práticas educativas como possibilidades que ampliam a Educação abrindo perspectivas para que a Escola cumpra seu papel social colocando luz nas questões que geram essa Era antropocêntrica. O ensino da Arte é trazido na discussão como um dispositivo imprescindível ao possibilitar que asensibilidade interfira nesse processo. Neste sentido, A educação foi posicionada como processo de constituição humana para a convivência, que revela a vida como fenômeno em mudança e em constante transformação a partir de interações com o meio social e natural, fluindo conforme culturas, sujeitos e momentos históricos. O objeto Artístico sempre foi esse espelho por onde o ser humano se revela ao ser por ele tocado, portanto, revela-se também sempre objeto através do qual o serhumano deposita esperança por dias melhores.
Nas armadilhas de Jaider Esbell: sobre o conceito de Arte Indígena Contemporânea
Authors: Eyng Celio Roberto 
Published: December 2024

A pesquisa objetivou compreender as metáforas conceituais utilizadas por artivistas indígenas e pesquisadores na caracterização do conceito de Arte Indígena Contemporânea. Para isso, foi realizada uma análise textual discursiva, a qual buscou identificar o uso das metáforas conceituais de recipiente e trajetória nos discursos verbais. A partir da Teoria da Metáfora Conceitual, considerou-se que o conceito de Arte Indígena Contemporânea, desenvolvido por Jaider Esbell, funciona como uma estratégia de posicionamento entre dois sistemas: o Sistema da Arte Indígena e o Sistema da Arte Contemporâneo. O estudo pretende subsidiar a organização de intervenções pedagógicas e seus desdobramentos envolvem investigar os conceitos artísticos como armas na luta por legitimidade e autenticidade no campo artístico.
Convergence of the functionality of interactive communication techniques with regional audiences in social media texts
Authors: Semenova E. A. 
Published: December 2024

INTRODUCTION. Building effective communication with the target audience through media texts is a relevant technique of interactive interaction. The correlation of methods of interactive communication with a regional audience and the functional purpose of elements of a social media media text is studied. The purpose of the study is to substantiate the convergence of the functionality of interactive methods of communication with a regional audience in media texts of social media. The theoretical novelty of the work lies in identifying the convergence of the functionality of media texts, in introducing the concept of “landing” of media content into scientific circulation.MATERIALS AND METHODS. The theoretical basis of the study was the works of L.R. Duskaeva, E.A. Zvereva, A.A. Kazakov, N.I. Klushina, A.M. Shesterina on the use of interactive techniques in media texts. The most comprehensive Tambov communities on VKontakte and Telegram channels were selected as an empirical base. The study used the method of content analysis of social media texts for 2023-2024.RESULTS AND DISCUSSION. The following conclusions were formulated in the course of the study: 1) each speech technique performs several functions, which indicates the convergence of the functionality of media texts; 2) speech techniques of interactive communication in synthesis with technical means demonstrate effectiveness; 3) speech techniques are a manipulative means, and technical means are used to implement media communication tasks.CONCLUSION. Interactive speech techniques in media texts allow to influence the user, involve him in the news item and form a certain opinion about it, motivate to leave a social reaction to the media content. This gives the authors the opportunity to make the platform more recognizable and interesting, as well as to increase the effectiveness of the community.
“Death in Moscow” by Yuz Aleshkovsky: mortal images, narrative strategy, genre-thematic features
Authors: Maksinyaev R. I. 
Published: December 2024

INTRODUCTION. The research is devoted to the study of genre-thematic and narrative peculiarities of Yuz Aleshkovsky’s story “Death in Moscow”. The purpose of the work is to reveal the specifics of thanatological discourse and discourse of political and ethnic anecdote, which form a peculiar poetics and aesthetics of fantastic and mystical narrative.MATERIALS AND METHODS. The material of the study is the little-studied Yuz Aleshkovsky’s novella “Death in Moscow” (1985). The key method is the method of holistic analysis of the artwork, and we also used the motive and narrative approaches.RESULTS AND DISCUSSION. It is established that the central plot episodes of the story perform a carnival function, while the artistic methods determine the author’s strategy. At the narrative level, it is embodied in the interchangeability and identity of thirdperson and first-person narration as a minuscule technique and the alleged “removal” of the author’s mask in the use of stream-of-consciousness techniques. At the plot level, these are inserted anecdotes and short stories that satirically depict images of Soviet power, motifs of death, antipochevanism, and cosmopolitanism.CONCLUSION. In Yuz Aleshkovsky’s story, the technique of reducing the images of Soviet power to the realm of material and corporeal bottom becomes not only a leading technique, but also acquires a ritual sacredness: on the one hand, the writer restores the balance of mythological and everyday life, public and private, near and far. On the other hand, in opposition to the official mythology, he creates his own mythology – the mythology of the folk anecdote, a novel-anecdote, devoted to the laughing comprehension of the death of the dying and dying Soviet state.
Natural Gas Liquid Huff ’n’ Puff in Ultratight Shale Reservoirs: An Experimental and Modeling Study
Authors: Alinejad Amin , Behseresht Javad , Dehghanpour Hassan 
Published: December 2024

Summary
Solvent huff ’n’ puff (HnP) is becoming a common enhanced oil recovery (EOR) practice in unconventional tight and ultratight reservoirs. For an effective HnP operation, achieving miscibility is essential for promoting solvent transport into the reservoir matrix and subsequent oil production. This is typically achieved by either increasing the injection pressure or enriching the solvent. However, injection pressure is constrained by compressor capacity, formation fracture pressure, and lateral/vertical containment. In this study, we experimentally assess the feasibility of using natural gas liquid (NGL) for HnP in an ultratight Eagle Ford (EF) shale sample, providing insights into extreme solvent enrichment scenarios in an HnP process. We hypothesize that NGL extracts oil from an oil-saturated shale core through a counterdiffusion process, primarily governed by first-contact miscibility (FCM) between NGL and oil. In this study, we explore the impact of solvent injection on the phase envelope of both dead oil and live oil during the HnP process. We present a critical comparison between C1 HnP, representing the lower limit of solvent enrichment, and NGL HnP, representing the upper limit, focusing on their respective oil recovery mechanisms and in-situ solvent-oil interactions. Using a high-pressure and high-temperature (HPHT) visualization apparatus, we investigate the interactions between NGL and oil, as well as their compositional variations, under bulk-phase conditions and in the core during the HnP process. We propose an analytical theory for the transport of NGL and oil into and out of an ultratight porous medium, explaining the experimental oil recoveries observed from the shale core. NGL and oil transport is modeled under a diffusion-dominated scenario, with FCM playing a crucial role in enhancing diffusion. Compositional analysis indicates that, contrary to C1, NGL extracts heavier oil components during the soaking stage. Core visualization demonstrates a gradual color change of NGL from clear to amber during soaking, indicating oil production via counterdiffusion. NGL expands the two-phase envelope of the dead oil, making it more volatile, while suppressing the phase envelope of the live oil. This potentially extends the duration of single-phase oil flow during the depletion stage in a live-oil system and enhances the oil production through diffusion. NGL achieves significantly lower FCM pressure (FCMP) with oil compared with C1, C1/C2 (70/30), C2, and separator gas, explaining its higher diffusion into the oil-saturated core. The analytical model demonstrates that NGL diffuses to the end of the core by the end of soaking. NGL recovers significantly more oil than C1 in the HnP process. Most of the oil is produced during soaking due to counterdiffusion, with solution-gas drive contributing additional recovery at later stages of depletion, though not as markedly as in C1 HnP.
Application of Oil Fingerprinting and Biomarker Analysis to Study Fluid Connectivity and Reservoir Isolation and Genetic Typing of Oil Obtained from the Eastern Caspian Basin (Kazakhstan)
Authors: Seitkhaziyev Yessimkhan , Jarassova Tolganay 
Published: December 2024

ABSTRACT
In this paper was performed fingerprinting analysis 130 oils derived from 8 oil and gas fields in the Eastern part of Pre-Caspian basin (Laktybay, Karatobe, Karatobe South, Alibekmola, Kozhasay, Eastern Urikhtau, Akzhar Eastern, Bashenkol) for reservoir compartmentalization studies and prediction of petroleum migration pathways, while biomarker analysis of representative samples was carried out for genetic typing of oils. On the basis of the analysis performed on the area, several promising zones of hydrocarbon accumulation are identified for increasing hydrocarbon resources and reserves in the future. The results of this study showed that all studied oils of the Eastern Caspian Basin were generated from marine source rock. However, the oils of the pre-salt deposits (Kozhasay, Alibekmola, Urikhtau) were generated from carbonate source rock, while those of the post-salt deposits (Karatobe, Karatobe South) were from marine shaly ones, although within the two fields of post-salt deposits (Laktybay and Akzhar Eastern) occur oils derived from shaly and carbonate sources. Genetic typing of the studied oil samples, according to biomarker parameters, indicates the presence of two genetically different oils in Laktybay and Akzhar Eastern fields, associated with different generation sources - with source rocks of carbonate and shaly formations. According to the thermal maturity of oil from pre-salt deposits of carbonate origin (Alibekmola, Kozhasay, Eastern Urikhtau fields) showed relatively low thermal maturity in comparison with oil from post-salt deposits (Laktybay, Karatobe, Karatobe South, Akzhar Eastern).
Study on Plugging Process Parameters and Mechanism of Large-Scale Plugging Experimental Device for Blowout Preventer Stack
Authors: Jing Jiajia , Zou Jilong , Wang Guorong , Zhang Xuliang , Yuan Ye , Wang Gui , Tang Kai 
Published: December 2024

Summary
The blowout preventer (BOP) stack is the last line of defense for well control (pressure control of the wellbore), and the failure of its sealing components will cause serious well control accidents. At present, there is a lack of suitable experimental device to verify the feasibility of the emergency rescue method proposed for the early seal failure of the BOP stack by pumping plugging particles. However, it is costly, risky, and time-consuming to build and implement a large-scale plugging experimental model for BOP stack with ultrahigh pressure (70 MPa) and large displacement. Therefore, based on this device, this paper establishes a large-scale plugging experimental model of BOP stack by using computational fluid dynamics-discrete element method (CFD-DEM). The volume flow rate is used as the evaluation index to analyze the influence of the shape, size, concentration, and pump displacement of the plugging particle on the plugging efficiency, and the plugging parameters of the experimental device are researched and selected. The results show that the plugging particles can be divided into four stages—particle pumping, particle diffusion, particle bridging, and particle accumulation. The 5-mm spherical particle has the best plugging efficiency for the largest dimension of flange connection seal failure. The particle concentration and pump displacement affect the bridging time of particles but have no obvious effect on the plugging efficiency. A pump displacement of 2.4 m3/min and 5-mm spherical particles with 25% concentration were selected for emergency plugging of the experimental device. This study not only reduces the cost and risk of large-scale plugging experimental device for BOP stack but also further promotes the feasibility study of emergency rescue of BOP seal failure.
Study of the resonant motion of a test particle inside Kepler 69 using circular restricted three body problem
Authors: Hysa Azem 
Published: December 2024

Summary: Scientific researches to discover extraterrestrial life are very intense and important. For a long time, humanity has speculated about the existence of the planetary systems different from our solar system, where extraterrestrial life can be existing elsewhere in the universe. The understanding of the origin of planets and planetary systems has indeed become a major focus of research in modern Astrophysics. Exoplanet research is one of the most field developing subjects in Astrophysics and Astronomy. Today, the number of discovered exoplanets, where life is thought to exist, is large. One of the main goals of scientists is to find Earth 2, where there is possibility of extraterrestrial life. Kepler's mission was, and is very important in the field of exoplanet research. This mission has revolutionized our understanding of exoplanets. The number of discovered exoplanets has exceeded 5780 in 4314 planetary systems, with 969 systems having more than one planet [1]. Among them, one of the most interesting is Kepler 69 c, a super-Earth around Kepler 69. This exoplanet is located at the boundary between the habitable zone and the outer one.
In this study let’s focus on the classical gravitational problem called Circular Restricted Three-Body Problem (CRTBP) [2, 3] and use an iterative method to perform numerical calculations through MATLAB software.
Therefore, in this paper, let’s try to study the movement of a “test particle”, under the action of the gravitational field of the system Kepler 69–Kepler 69 c. The aim of this paper is to study the motion of a “test particle” (for example an extrasolar asteroid test) inside the exoplanetary system Kepler 69.
Results are presented in the (x, y) plane in the rotating and inertia system. Also, some of the results are presented in the phase planes (x, vx) and (y, vy)