Research Situation Research Articles

Development and Application of the Large‐Scale Simulation Experimental System for the In Situ Long‐Term Injection and Production of EGS

With the proposal of the double carbon target, the exploration, development, and efficient utilization of geothermal energy is an important field for the energy development. Meanwhile, there also exists a series of challenges. With regard to the injection and production process of enhanced geothermal system, researchers mainly focus on the numerical simulation. As the conceptual model is developed based on several assumptions, the results are unable to truly reflect the heat transfer and seepage process of the fluid. Unfortunately, there are few reports on the large‐scale physical simulation experiments. Considering the present research situation, we have developed a large‐scale physical simulation experiment system in which the in situ long‐term injection and production process of hot dry rock (HDR) can be simulated. The experimental system includes several components: high‐temperature and high‐pressure true triaxial chamber and loading system, multiwell injection system, acoustic emission monitoring system, and flow and temperature monitoring system. By designing the experiments, the performance evaluation of the temperature variation, fluid flow, and heat energy extraction in the long‐term HDR injection and production process can be completed. Taking the granite outcrop rock sample, which is from the Gonghe Basin in Qinghai Province, as an example, we have conducted the long‐term injection and production experiment. The production temperature and flow rate were monitored and discussed. The results showed that the experimental system can simulate the heat transfer and seepage process of the fluid. More working conditions can be designed for the research of the long‐term injection and production process. Hopefully, this will provide an experimental platform for the efficient development of HDR.

A study on the positive and negative effects of different supervisor monitoring in remote workplaces.

The current academic research on whether and how the different supervisor monitoring effect in remote workplace is relatively scarce. Based on the Job demand-resource (JD-R) Model, this study proposes that as a kind of work resource, interactional monitoring will enhance employees' self-efficacy, further enhance remote employees' work engagement and reduce their deviant behaviors. While as a kind of work requirement, electronic monitoring will decrease employees' self-efficacy, further reduce remote employee's work engagement and increase their deviant behaviors. This study gets the empirical date of 299 employees who experienced remote work. Amos 23.0, SPSS 23.0 software and process plug-in were used to do the hierarchical regression, bootstrap and simple slope analysis, so that to test the hypothesis. This study broadens the research situation and mechanism of different supervisor monitoring, so as to enrich the comprehensive understanding of the effect of them, and also to provide some inspiration and reference for relevant management practices.

중국에서 지역과 외국학으로서의 한국학 연구

This article investigates the research prospect of Korean studies after area studies have been newly established as a discipline in China. This study quantitively analyzes the current research situations and research fields of Korean studies based on the examination of the Korean Studies-related research projects sponsored by National Social Science Funding which is the representative national research project in China, and the Korean Studies-related articles published on the journals in China. The findings are: 1) the foundations of Korean studies in China are expanding;2) both the quantity and quality of Korean studies in China are increasingly growing. It is thus shown that more attentions have been paid to East Asian studies, China Theory, China perspective, comparative study and bilateral relation study. However, as an interdisciplinary field, there is a lack of interdisciplinary collaboration and cooperation between Chinese and Korean researchers. It is thus suggested that more exchanges and cooperations should be needed among the researchers from different disciplines, different areas and different nations in order for the problems to be solved.

Positionings Towards the ‘Work-Dogma’ from the Margins: Making Sense of Vulnerabilities and Inequalities in the Interview Situation

The norm of wage labor imposes itself on the unemployed as a material, legal and symbolic-discursive order. As ‘deviants’ from the norm, unemployed people are often confronted with pejorative judgments or social exclusion in everyday life. This paper asks how differently positioned unemployed people living in precarious circumstances position themselves in relation to the norm of employment and critique its accompanying social order. Based on the experiences with 25 interviewees, the paper argues that the social inequalities and power relations associated with the work-dogma permeate the research situation itself. This epistemic tension provides a methodological opportunity to place the interview situation and the mutual address between researcher and interviewee at the center of the analysis. Inspired by <i>Situational Analysis</i> (Clarke) and <i>Interpretative Subjectivation Analysis</i> (Bosančić), a heuristic is developed that focuses on inequalities and vulnerabilities in the research situation. The analysis of the interview dynamics reveals different modes of self-positioning with respect to the wage-labor norm, ranging from an embarrassed subordination under discursively transported subject positions to forms of critical appropriation and affective rejection. By identifying different self-positionings that challenge the norm of employment, the paper situates itself in ongoing debates within critical sociology, feminist epistemology and social philosophy about possibilities of criticism from the margins, arguing for a pluralistic and relational understanding of subversive practices and articulations of critique.

Research progress of surface texturing to improve the tribological properties: A review

In the process of machine and mechanical operation, it is inevitable to face problems such as friction and wear. At present, there are many solutions to solve the problems. As a very effective method, surface texturing has been applied in many projects. In recent years, surface texturing has made great achievements in the study of friction pair surface, which is of great significance to improve the tribological properties of friction pair surface. In this paper, the author reviews the main research results of surface texturing in controlling friction in recent years and points out the research purpose and development status of surface texture. The preparation of texturing is summarized and analyzed from two aspects: shape and size control accuracy and surface quality. The research on the anti-friction mechanism of texture is reviewed, and the three states of dry friction, fluid lubrication, and boundary lubrication are analyzed, respectively. The optimization of morphology and parameters was discussed, and the optimal parameter range was obtained. Finally, the above aspects of the full text are summarized, and the problems faced by all aspects are put forward. Combined with the actual situation of the current research, the future development prospect of surface texture technology is prospected.

Challenges of Ethnographic Research with War Migrants from Ukraine

In this short reflection on ethnographic research with forced migrants who arrived in Poland after February 24, 2022, I would like to address topics that to me - as an anthropologist, Ukrainian studies specialist and researcher of Ukrainian communities in Poland, including war migrants - seem crucial in designing a research project in cooperation with people who fled from Ukraine. These are primarily issues related to research ethics, the situation of difficult research in cooperation with potentially traumatized people, positioned by popular discourses as refugees and victims of the Russian invasion of Ukraine. In addition, my reflection concerns access to the site, the researcher's involvement and responsibility, the specificity of the situation in which this research is conducted, as well as problems and challenges facing their archiving and representation. I will shortly indicate the threats that researchers must take into account, such as revictimization, lack of psychological tools, burdens and burnout of the researcher, and the further life of the constructed ethnographic knowledge, built on the experience of war migrants from Ukraine. I also include some practical tips on designing conversations with war migrants from Ukraine. In addition to the indicated challenges of ethnographic research in cooperation with forced migrants from Ukraine, the paper contains an appeal for a radical increase in ethical standards in a situation of war and forced migration.

Scientific mapping of hotspots and trends of post and core research based on the Web of Science: A bibliometric analysis

Statement of problemPost and core (PC) restoration has been widely used to restore endodontically treated teeth. Nevertheless, bibliometric studies focusing on PC research are lacking. PurposeThe purpose of this bibliometric analysis was to review the general situation and determine the research direction of PC restoration by means of visualization, including the time development, countries, institutions, authors, journals, research categories, and the information of references with the strongest citation burst. Material and methodsThe search was carried out within the topic field of the Web of Science (WoS) database. CiteSpace, VOSviewer, and R language were used to analyze the literature. Bibliometric indicators in terms of title, keyword, reference, publication time, institution, country and citation information were analyzed. ResultsBetween 1966 and 2022, dental research on PC trended upward, especially in 2011 and up to 2022. Scholars in Brazil, the United States, and Italy actively participated in PC research. The country that published the most was Brazil. Italy both ranked first in the H-index and average citations per item and had cooperative relations with several countries. The United States ranked first in the world in total citation count. The University of Siena published the most articles. The Journal of Prosthetic Dentistry (JPD) was the major contributing journal. The top three authors in this field were Ferrari M, Goracci C and Naumann M. The largest cooperative network of authors consisted of four Italian scholars. There were six main clusters of research topics on PC through CiteSpace co-citations. In addition, CiteSpace co-citations, CiteSpace Burst detection and VOSviewer keyword analysis showed the most important research interests, such as bond strength, fiber post, fracture resistance, and finite element analysis. Photodynamic therapy is the latest research hotspot. Finally, there were the top 25 references with the strongest citation bursts, which mainly focused on four aspects, namely, studies related to fiber posts, PC bonding strength, finite element analysis, and residual teeth and the ferrule effect. ConclusionsThis bibliometric analysis provides a comprehensive overview of PC research, including the research time, country, institution, author, journal, article clustering, article keywords, and important literature analysis, so that researchers can have a clear understanding of the research situation in this field.

Tendencias en la investigación educativa en Colombia: Aportes para la construcción de un marco comprensivo, histórico y cultural

Purpose. The study investigates the current situation of educational research in Colombia, based on the research trends that emerge from the processes developed by universities, groups and lines of research in the country. Method. The methodological design responds to a descriptive content analysis, based on the complementarity perspective, which constitutes a qualitative approach aimed at the holistic understanding of complex cultural realities, based on the analysis of multiple sources of information. Results. The research shows that, despite the multiplicity of research processes in educational sciences, Colombia has not yet consolidated a research structure that enables the generation of disciplinary, interdisciplinary, or transdisciplinary knowledge to promote educational quality and social change in the national territory.

Evaluation of the green economic value added index in the game of enterprise capital providers

This study explores the performance evaluation of steel enterprises, emphasizing the importance of green environmental performance. Based on the review of the current situation of green investment research, economic added value evaluation system, and game analysis of enterprise capital providers, this study discusses the comprehensive evaluation of games among enterprise capital providers from the perspective of green economic added value. It constructs a game model of capital providers from the perspective of green investment. This model is based on the probability of creditors making green bond investments and shareholders pledging equity, deriving game results, and using economic added value returns to measure enterprise performance. The main data in this study are from the CSMAR database, a corporate governance project, and the relevant environmental protection data from Nangang's annual report. The results show that the green economic added value return rate is higher than the traditional economic added value return rate, indicating that environmental investments do not reduce the operational performance of enterprises. The game of capital providers leans towards equity investment and does not enhance enterprise performance at the expense of the environment. The green economic added value index only reflects past operational performance, based on which enterprises can design reasonable performance evaluation mechanisms, encouraging capital providers to favor environmental investments. This study has important theoretical and practical significance, guiding enterprises' strategic choices during green transformation.

Research Status and Trend of Family Finance-Based on Visual Analysis of Journal Papers from CNKI and WOS

With the sustained economic growth, the importance of family finance has become increasingly prominent. In this research, the papers collected by Chinese National Knowledge Infrastructure (CNKI) and Web of Science (WOS) were visually analyzed via CiteSpace software, and a knowledge map for the field of family finance was constructed, which displayed the current situation, hotspots, and trends of family finance research from multiple angles in an all-round way. The results show that the number of published Chinese and English papers is increasing year by year, among which English papers are mainly contributed by American scholars, with relatively little cooperation and exchange between countries. In Chinese literature, the cooperation between authors and institutions is also limited. At present, the research in the field of family finance is ushering in a stage of rapid development, and the research hotspots mainly focus on financial literacy, financial knowledge, risk finance, and inclusive finance. Given this, the future research should focus on the cooperation among authors, institutions, and disciplines, and meanwhile, increase in-depth research on digital finance, and digital divide. These efforts will promote the further development of research in the field of family finance in China.

Oleaginous Yeast Biorefinery: Feedstocks, Processes, Techniques, Bioproducts

The world climate crisis has triggered the search for renewable energy sources. Oleaginous yeasts are a potential renewable source of biofuels. However, the yeast-derived biofuels cost is still non-competitive with the fossil fuel prices. To improve the sustainability of yeast-derived biofuels, it is necessary to valorize all yeast biomass fractions, an approach based on the biorefinery concept. This review describes the present situation of the oleaginous yeast biorefinery research, emphasizing the feedstock, processes and techniques involved in this concept, as well as on potential bioproducts that can be obtained from oleaginous yeast biomass.

Human resource management research in healthcare: a big data bibliometric study

Human resource management (HRM) in healthcare is an important component in relation to the quality and efficiency of healthcare delivery. However, a comprehensive overview is lacking to assess and track the current status and trends of HRM research in healthcare. This study aims to describe the current situation and global trends in HRM research in healthcare as well as to indicate the frontiers and future directions of research. The research methodology is based on bibliometric mapping using scientific visualization software (VOSviewer). The data were collected from the Web of Science(WoS) core citation database. After applying the search criteria, we retrieved 833 publications, which have steadily increased over the last 30 years. In addition, 93 countries and regions have published relevant research. The United States and Australia have made significant contributions in this area. Current research articles focus on topics clustered into performance, hospital/COVID-19, job satisfaction, human resource management, occupational/mental health, and quality of care. The most frequently co-occurring keywords are human resource management, job satisfaction, nurses, hospitals, health services, quality of care, COVID-19, and nursing. There is limited research on compensation management and employee relations management, so the current HRM research field still has not been able to present a complete and systematic roadmap. We propose that our colleagues should consider focusing on these research gaps in the future.

Four Books and Five Classics as Key References in International Journal Communication: A Scopus-Based Visualization (1998-2023)

Using CiteSpace 6.1.R6 and Arcgis, this paper examines the publications on Confucian classics represented by the Four Books and Five Classics in the Scopus database from 1990 to February 2023. Grasping the overall situation of research on Four Books and Five Classics and the hot issues in detail, the study aims to understand the field’s status and cutting-edge topics. The results revealed that the main contributors are Chinese and Chinese-American scholars, and the publications are mostly disseminated by American publishers and influenced by the economy. Research on Four Books and Five Classics has gained more attention over the years, but the topics and methods are becoming more homogeneous. The paper suggests that more efforts are needed to promote the dissemination of Confucian classics and attract more scholars to join the frontier dialogue in this field. Academic journals can serve as a medium to promote the dissemination of classics to the world.

A Registry-based Audit of a Current Situation of Clinical Research in COVID-19 Using Artificial Intelligence Techniques: A Systematic Review

Background: The term artificial intelligence refers to the use of computers and technology to replicate intelligent behaviour and critical thinking similar to that of a human being. In COVID-19, artificial intelligence has been widely applied in diagnostics, public health, clinical decision-making, social control, treatments, vaccine development, monitoring, integration with big data, operation of additional vital clinical services, and patient management. Hence, we conceptualized this study to evaluate the usage of artificial intelligence as a tool at the time of the COVID-19 pandemic. Methods: From December, 2019, to May, 2022, all clinical trials using AI approaches listed on clinicaltrials.gov and ctri.gov.in were examined and analysed. Results: Out of 8072 studies on COVID-19 listed on ClinicalTrials.gov and 674 studies on the CTRI website, 53 studies were related to AI. Ten (18.9%) of the 53 studies were interventional, while the remaining 43 (81.1%) were observational. Conclusion: With limited medical resources and growing healthcare strain, the introduction of AI approaches will increase human efficiency and capacity to combat the COVID-19 pandemic. In this review, artificial intelligence was proven to be more accurate than human specialists in COVID-19 diagnosis and medication discovery.

A bibliometric analysis and visualization of research on heart failure complicated with malnutrition

Abstract Objective This study aimed to have a good knowledge of heart failure complicated with malnutrition research status, hotspots, and forecast research trends using bibliometric analysis and visualization of studies of heart failure complicated with malnutrition in the past 10 years. Methods Articles related to malnutrition-induced heart failure were obtained from the Web of Science Core Collection (WoSCC) series from January 2012 to January 2022. Two software (Java CiteSpace 5.8R3 and Microsoft Excel 2019) were used to perform bibliometric and knowledge-map analysis, including analyzing the annual publication and trend of articles, authors and co-cited authors, institutions/countries, co-cited journals, co-occurrence, clusters, and burst of keywords, co-cited references, and reference burst. Results A total of 672 articles appeared in 180 scientific journals by 4249 authors from 1453 institutions in 71 countries. Over the past 10 years, the number of related studies released has shown an upward trend, and the range of increases has been larger over the past 5 years. Takatoshi Kasai released the most papers, while Anker S D had the most co-quotes. Simultaneously, active cooperation existed in complicated heart failure with researchers on malnutrition. Circulation, Journal of The American College of Cardiology, and Clinical Nutrition were the top 3 co-cited journals. The USA, Japan, and China were the most productive countries, while Johns Hopkins University was the most active institution. In addition, the reference published by Ponikowski P had the most co-citations, relating to as a knowledge base. The latest hotspots of heart failure complicated with malnutrition mainly included research on: (1) assessment of nutrition status, the impact/risk factor of nutrition, and the prevalence and outcome of the patients; (2) heart failure complicated with malnutrition when complicated with other diseases, for example, chronic kidney disease and diabetes mellitus; (3) the nutrition of child patients with heart failure complicated with malnutrition; and (4) the treatment of heart failure complicated with malnutrition, including assist devices, organ transplantation, and drug therapy. While the frontier topics included research on: (1) the index of heart failure complicated with malnutrition; (2) the effect of sarcopenia to heart failure complicated with malnutrition patients and the use of geriatric nutritional risk index to assess the nutritional statue; and (3) find the nutritional risk index. Conclusions This study conducted a full overview of the present research situation, hotspots, and frontiers by using bibliometric and visualization analysis methods in heart failure complicated with malnutrition, which would provide a helpful reference for future research.

Future application and prospect of space electron beam processing technology

Technological advances in space electron beam processing could fundamentally alter how spacecraft and space stations are built. The primary topics covered in this essay are the application circumstances for electron beams in space, the research situations for electron beam welding, additive manufacturing, and surface modification, and an analysis of the potential future applications for this technology. It demonstrates the viability of space applications of electron beam processing technologies.

Differences in large aircraft design between military and civil perspectives

Military transport aircrafts and civil aircrafts are important parts of the aviation field. With the development of aviation technology and the specificity of aircraft functions, the design of military transport aircraft and civil aircraft gradually differs according to application scenarios. However, in the aircraft design, military transport aircrafts and civil aircrafts still have a lot of mutual references. Analyzing the differences between them and the reasons for the differences may contribute to the design and development of military transport aircraft and civil aircraft in the future, and provide reference suggestions for the design of civil aircraft in the context of the civil-military integration. In this article, the application scenarios and functions of military transport aircraft and civil aircraft are analyzed, as well as the special situation of civil aircraft research and development. This article may offer a reference for the future research and development of military transport aircraft and civil aircraft.

Current situation and trend of translational research of acupuncture-moxibustion in treatment of aphasia based on knowledge graph analysis.

To investigate the hot topics in acupuncture-moxibustion research for treatment of aphasia and explore the current situation and trend of technology transformation in this field through analyzing the relevant Chinese literatures in recent 30 years by means of knowledge graph technology. CiteSpace 6.1.R 2 and VOSviewer V1.6.16 software were used to collate the data, draw knowledge graphs and conduct visual analysis of the literatures related to acupuncture-moxibustion treatment of aphasia, searched from CNKI, WanFang and VIP databases.The time line view and strongest bursts of keywords were formed in the field of acupuncture-moxibustion treatment for aphasia. The treatment-based keyword networks were visualized. A total of 773 Chinese articles were included. Through visual analysis of the co-occurrence networks, the top 10 high-frequency overall keywords and the top 10 clusters of overall keywords were listed. The top 5 high-frequency aphasia categories were Broca aphasia, hysterical aphasia, transcortical motor aphasia, nominal aphasia and sensory aphasia. Regarding the keywords of the techniques of acupuncture-moxibustion, the occurrence frequencies of scalp acupuncture, tongue acupuncture, body acupuncture and electroacupuncture were ≥ 10 times.The occurrence frequencies of 16 acupoints were ≥25 times. After collation and cluster analysis of acupoints and techniques of acupuncture-moxibustion, 7 keyword clusters of "acupuncture techniques-acupoints" were obtained. The time line view showed that the strongest burst of keywords were transcranial magnatic stimulation, language rehabilitation training, acupuncture-medicine therapy and stroke, etc. in the recent 5 years. Acupuncture-moxibustion displays its unique advantage in treatment of aphasia. With the deepening of modern research, the hot topics for aphasia treated with acupuncture-moxibustion are present and the achievements enriched. In future, these therapeutic methods should be further investigated to explore a model of translational medicine for aphasia in line with the characteristics of acupuncture-moxibustion.

Present Situation and Hotspot of Eco-Hydrological Process Research in China based on Citespace Analysis

In order to fully understand the current hot spots and trends of eco-hydrological research, based on the bibliometrics method and taking 458 relevant literatures from CNKI 2000 to 2021 as the research objects, this paper used the knowledge graph computing tool CiteSpace to carry out visual analysis of the eco-hydrological process in China, and analyzed the research status, hot spots and trends. The results show that: ecohydrological process and ecological restoration are the prefaces of the current ecohydrological research. From 2000 to 2008, the research of ecohydrological field in China is in the rapid development stage, from 2009 to 2015, it enters the stable adjustment stage, and from 2016 to 2021, it accelerates the development stage. The state Key Laboratory of Surface Processes and Resource Economics, State Key Laboratory of Remote Sensing Science, Center for Excellence and Innovation in Tibetan Plateau Earth Sciences, Chinese Academy of Sciences, School of Geographic Sciences, and Cold and Arid Regions Environmental and Engineering Research Institute have close cooperation in eco-hydrology.

Sanctity and quality as the conceptual basis of the value of life doctrine in the bioethical discourse

The article offers a study of the bioethical discourse regarding the value of life through the prism of conceptualizing the main approaches to the study of this phenomenon. It is noted that with all the diversity of approaches that demonstrate a wide range of views on the value of life, the modern bioethical discourse com-bines the ideas of scientific research, the dogmatics of religious doctrines and the basic principles of moral imperatives, which are interpreted in a civilized soci-ety in the context of medico-biological problems of life preservation and repro-duction, as well as determining its value. This combination is far from being ec-lectic. It synthesizes the main achievements of scientific, religious and ethical thought and extrapolates them to the problem of human life, which is a unique phenomenon that should be separated into a specific system of moral norms and imperatives of human activity. The article notes that in modern conditions the bioethical discourse is concentrated around the axiological paradigm in the study of living beings. All the diversity of viewpoints is proposed to be grouped into two main approaches: the ethics of the sacredness (sanctity) of life and the the quality of life ethics. The conceptualization of these two main approaches permits to consider all the diversity of views on the value of life in the context of bioethi-cal discourse as a systematized set of views, which contributes to the creation of an appropriate scientific research situation and will contribute to the deepening of scientific studies on the specified subject.