Research Plan Research Articles

The preliminary study of antifungal and antibacterial properties of wine by-products

Background: Nowadays, the search for novel alternative antimicrobials has gained significant popularity. This surge is driven by the vast array of adverse effects of synthetic antimicrobials on human health and the environment. Consequently, the study of new natural sources of comparably ecologically safe and simultaneously effective antimicrobials is extremely important. In this context, the interest in wine by-products is growing due to their diverse beneficial properties. Traditionally considered industrial waste, wine by-products now offer promising opportunities. Notably, the unique climatic and geographical features of Armenian black grape varieties, such as Areni sev, make their by-products an attractive subject for study, with potential applications in agriculture. Objective: The study aims to investigate the antifungal and antibacterial properties of wine by-products obtained from the Areni sev grape variety. Methods: For the extraction of bioactive compounds, frozen and dry samples were homogenized. The maceration was performed in 70% hydroethanolic solution after incubation on a magnetic stirrer at room temperature. The obtained extracts were filtered through a 0.45 µm filter and evaluated for antifungal and antibacterial activity by disco-diffusion method. Results: Hydroethanolic extracts of wine by-products have exhibited antifungal and antibacterial activities. Specifically, the frozen samples demonstrated low antifungal activity against the Penicillium canescens with a 7.5 mm growth inhibition zone. In contrast, dried samples showed no antifungal activity. The highest antifungal activity was observed against Aspergillus niger with growth inhibition zones of 18 mm (frozen samples) and 15 mm (dried samples), respectively. Regarding antibacterial activity, wine by-product hydroethanolic extracts showed extremely low efficacy. Notably, frozen samples exhibited an 8 mm growth inhibition zone against Curtobacterium flaccumfaciens and 6.35 mm against Xanthomonas vesicatoria. Extracts from dried samples demonstrated a 6.35 mm inhibition zone against Curtobacterium flaccumfaciens and a 7 mm growth inhibition zone against Xanthomonas vesicatoria. Conclusion: Summarizing the results of the conducted experiments, it can be concluded that the used wine by-product derived from Areni sev grape has demonstrated notable antimicrobial activities, with a stronger emphasis on antifungal properties. The extracts obtained from frozen samples exhibited greater efficacy than those derived from dried samples. Future research plans include a more detailed investigation of Areni sev grape wine by-products. Keywords: wine by-product, grape pomace, Areni sev, bioactive compounds, antimicrobial properties

A comprehensive study of common and rare genetic variants in spermatogenesis-related loci identifies new risk factors for idiopathic severe spermatogenic failure

Abstract STUDY QUESTION Can genome-wide genotyping data be analysed using a hypothesis-driven approach to enhance the understanding of the genetic basis of severe spermatogenic failure (SPGF) in male infertility? SUMMARY ANSWER Our findings revealed a significant association between SPGF and the SHOC1 gene, and identified three novel genes (PCSK4, AP3B1, and DLK1) along with 32 potentially pathogenic rare variants in 30 genes that contribute to this condition. WHAT IS KNOWN ALREADY SPGF is a major cause of male infertility, often with an unknown aetiology. SPGF can be due to either multifactorial causes, including both common genetic variants in multiple genes and environmental factors, or highly damaging rare variants. Next-generation sequencing (NGS) methods are useful for identifying rare mutations that explain monogenic forms of SPGF. Genome-wide association studies (GWAS) have become essential approaches for deciphering the intricate genetic landscape of complex diseases, offering a cost-effective and rapid means to genotype millions of genetic variants. Novel methods have demonstrated that GWAS datasets can be used to infer rare coding variants that are causal for male infertility phenotypes. However, this approach has not been previously applied to characterize the genetic component of a whole case-control cohort. STUDY DESIGN, SIZE, DURATION We employed a hypothesis-driven approach focusing on all genetic variation identified, using a GWAS platform and subsequent genotype imputation, encompassing over 6 million polymorphisms and a total of 1571 SPGF patients and 2431 controls. Both common (minor allele frequency, MAF > 0.01) and rare (MAF < 0.01) variants were investigated within a total of 1797 loci with a reported role in spermatogenesis. This gene panel was meticulously assembled through comprehensive searches in the literature and various databases focused on male infertility genetics. PARTICIPANTS/MATERIALS, SETTING, METHODS This study involved a European cohort using previously and newly generated data. Our analysis consisted of three independent methods: (1) variant-wise association analyses using logistic regression models, (2) gene-wise association analyses using combined multivariate and collapsing (CMC) burden tests, and (3) identification and characterisation of highly damaging rare coding variants showing homozygosity only in SPGF patients. MAIN RESULTS AND THE ROLE OF CHANCE The variant-wise analyses revealed an association between SPGF and SHOC1-rs12347237 (p = 4.15E-06, OR = 2.66), which was likely explained by an altered binding affinity of key transcription factors in regulatory regions and the disruptive effect of coding variants within the gene. Three additional genes (PCSK4, AP3B1, and DLK1) were identified as novel relevant players in human male infertility using the gene-wise burden test approach (p < 5.56E-04). Furthermore, we linked a total of 32 potentially pathogenic and recessive coding variants of the selected genes to 35 different cases. LARGE SCALE DATA Publicly available via GWAS catalog (Accession number: GCST90239721). LIMITATIONS, REASONS FOR CAUTION The analysis of low-frequency variants presents challenges in achieving sufficient statistical power to detect genetic associations. Consequently, independent studies with larger sample sizes are essential to replicate our results. Additionally, the specific roles of the identified variants in the pathogenic mechanisms of SPGF should be assessed through functional experiments. WIDER IMPLICATIONS OF THE FINDINGS Our findings highlight the benefit of using GWAS genotyping to screen for both common and rare variants potentially implicated in idiopathic cases of SPGF, whether due to complex or monogenic causes. The discovery of novel genetic risk factors for SPGF and the elucidation of the underlying genetic causes provide new perspectives for personalized medicine and reproductive counselling. STUDY FUNDING/COMPETING INTEREST(S) This work was supported by the Spanish Ministry of Science and Innovation through the Spanish National Plan for Scientific and Technical Research and Innovation (PID2020-120157RB-I00) and the Andalusian Government through the research projects of “Plan Andaluz de Investigación, Desarrollo e Innovación (PAIDI 2020)” (ref. PY20_00212) and “Proyectos de Investigación aplicada FEDER-UGR 2023” (ref. C-CTS-273-UGR23). SGM was funded by the previously mentioned projects (ref. PY20_00212 and PID2020-120157RB-I00). AGJ was funded by MCIN/AEI/10.13039/501100011033 and FSE “El FSE invierte en tu futuro” (grant ref. FPU20/02926). IPATIMUP integrates the i3S Research Unit, which is partially supported by the Portuguese Foundation for Science and Technology (FCT), financed by the European Social Funds (COMPETE-FEDER) and National Funds (projects PEstC/SAU/LA0003/2013 and POCI-01-0145-FEDER-007274). SS is supported by FCT funds (10.54499/DL57/2016/CP1363/CT0019), ToxOmics-Centre for Toxicogenomics and Human Health, Genetics, Oncology and Human Toxicology, and is also partially supported by the Portuguese Foundation for Science and Technology (UIDP/00009/2020 and UIDB/00009/2020). SLarriba received support from Instituto de Salud Carlos III (grant: DTS18/00101], co-funded by FEDER funds/European Regional Development Fund (ERDF)-a way to build Europe-), and from “Generalitat de Catalunya” (grant 2021SGR052). SLarriba is also sponsored by the “Researchers Consolidation Program” from the SNS-Dpt. Salut Generalitat de Catalunya (Exp. CES09/020). All authors declare no conflict of interest related to this study.

Engaging children and adolescents in the design and conduct of paediatric research

The importance of patient engagement in product development and clinical research is widely acknowledged. In pediatrics, parents and guardians are often vocal advocates for their children in the process, but investigators and sponsors rarely directly solicit children's or adolescents’ perspectives in clinical research planning or as patient partners during the conduct of research. Here, we provide compelling reasons and recommendations for investigators and sponsors to systematically engage young people in the design, conduct, and review of research, and the premise that input will be incorporated as a routine expectation. We consider the theoretical, ethical, and practical implications of this approach.

Action research plan: a methodology to examine the impact of artificial intelligence (AI) on the cognitive abilities of university students

Action research plan: a methodology to examine the impact of artificial intelligence (AI) on the cognitive abilities of university students

The Funnel Transformative Model of Science Education

This theoretical paper proposes a model to address the multifaceted challenges of science education by integrating two evidence-based approaches: the Learner-Generated Digital Media (LGDM) projects framework and the Cognitive Acceleration through Science Education (CASE) framework. The Model is analogous to a funnel, with its wide top representing the broad field of science education and its narrow bottom symbolising transformative learning. It leverages LGDM’s self-regulation benefits and CASE’s structured five-stage approach – Concrete Preparation, Cognitive Conflict, Social Construction, Metacognition, and Bridging. The model categorises the complexity of science learning into six critical pillars: lack of conceptual understanding, cognitive challenges, language barriers, lack of hands-on learning, lack of robust assessments, and social issues. Applying the Funnel Model aims to develop cognitive skills, enhance learning strategies, and foster practical skills. This paper presents the Funnel Model and discusses a methodological approach to validation using Design-Based Research (DBR). The research plans to address three key questions to refine and enhance the Funnel Model in improving science education outcomes.

RESEARCH MODEL CANVAS: APPLICATION IN ACADEMIC RESEARCH PLANNING

This article deals with academic research planning and its structural nuances, as a fundamental part of the development of scientific research, in achieving its objectives and obtaining valid and reliable results. It inquires about its conventional form of construction and presentation through the textual document and aims to propose a new instrument for the planning of academic research. It discusses Design Thinking, Business Model Generation and Project Model Canvas, as project planning and management methodologies applied in other areas of knowledge that have as a common characteristic their conciseness, etymological basis and visual presentation format. It is structured on the methodology of the 4 (four) poles: epistemological, theoretical, morphological and technical. Finally, it presents the proposal of the Research Model Canvas as an innovative instrument for the planning of academic research, developed in a robust but concise way, based on the quadripolar methodology, in a single sheet or screen document called academic research canvas and its history of application in postgraduate disciplines and in a Research Group of the Federal University of Ceará.

Research on autonomous obstacle avoidance and automatic obstacle avoidance of minimally invasive surgical robots

Abstract. With the development of modern society, people pay more and more attention to health and safety, especially to the development of medical techniques. The demand for higher medical standards has led to minimally invasive surgery becoming a better choice for patients. Minimally invasive surgeries involve less trauma, lower blood loss, quicker recovery, and a lower risk of infection. However, compared to traditional surgeries, these surgeries demand higher precision and skill from the surgeons, making surgical robots the preferred tool for most minimally invasive operations. Surgical robots can eliminate the surgeon's hand tremors during the operation, enhance the precision of surgical operations, and offer greater flexibility with their small end size inside human organs. Despite these advantages, minimally invasive surgical robots can not avoid obstacles and plan the path of human organs and cavities in real-time. This paper reviews the dynamic path planning and real-time obstacle avoidance of modern minimally invasive surgical robots, including their development progress and research directions. It also introduces in detail the mainstream research methods of path planning and real-time obstacle avoidance in modern research. Finally, the current technical challenges and the prediction of the future research direction are pointed out and the reference suggestions are provided.

Toward tenure security: The relationship between women's land ownership, formal land title documents and their empowerment

Respect for land rights for women, as a key strategy to promote their development and empowerment as well as improving their welfare, has been considered in today's societies. However, there have been few empirical studies to back up this statement. Therefore, the primary goal of this research was to find out whether or not women may increase their authority through economic tenure security, legal tenure security, household characteristic, or de facto tenure security. In this regard, the survey data collected in 2021 from 28 villages of Mazandaran province (Northern Iran) were analyzed. The study highlights the significance of de facto tenure security as the most crucial among the four qualities assessed. It's important to note, however, that possessing land titles doesn't necessarily guarantee de facto tenure security. Despite this distinction, the study reveals a meaningful correlation, suggesting that women with land titles are more likely to experience higher levels of empowerment. Official certification, resolution of tenure disputes, increased agricultural income, and the impact of regional urbanization all play an important role in empowering rural women, which usually results in better economic outcomes for them. According to the results, it is evident that the legal registration of women's land ownership correlates with enhanced women's empowerment within rural communities. Land ownership provides women with the means to generate income, make independent choices, and actively participate in various aspects of social and economic life. The findings of this study underscore potential shortcomings in gender neutrality within land interventions, emphasizing the necessity for incorporating gender considerations into research and land-use planning. The practitioners and policy-makers may utilize the study's findings to invest in programs that include components of land tenure security and increase women's economic empowerment.

Essential Characteristics for School Administrators in the Digital Age for Thailand

Introduction: It is well known that education and teaching practices are affected by technological developments. The ubiquitous spread of information and communication technologies in recent years has forced educational institutions to undergo a digital transformation so as to keep up with the today’s technological age. Educational activities have become sustainable in virtually all environments and under virtually all conditions, with interactive whiteboards having long since replaced the traditional blackboard in most schools. Changes emerging today include revised job definitions, changing patterns of daily life, and the desire for economic value; together they represent the primary results of this digital transformation. Objective: This study aims to explore the essential characteristic for school administrators in the digital age. Method: This is quantitative approach. The population was educational administrators in Thailand who are responsible for management in educational institutions. This Quantitative Research analyzed the data using Descriptive Statistics, Inference Statistic and Multivariate by IBM SPSS and Structural Equations Modeling (SEM) was analyzed by IBM SPSS AMOS. Results: 1) Government Policy (GP) 2) Performance Attribute (PA) and 3) Competent Innovation directly influence on Perceived Value. Moreover, Perceived Value directly influences on Performance Identification. Analysis of the SEM model was found to be accurate because the model is consistent with empirical data, harmonization index passed all criteria, Chi-Square = 173.53, df = 88 RMSEA = 0.04 and RMR = 0.03, index GIF = 0.96 and AGIF = 0.94 and R2/ df = 1.97. Conclusion: These findings can be used to develop academic fields such as research and strategic planning effectively and can be applied in educational industry as well, so making the product feature that meets the needs of the customer will result in the perception of the value of the product and making a purchase decision. This finding has benefits on human resources development and school management and school administrators as well.

Turning Research Ideas into Reality: A Guide to Developing a Simulated Research Protocol using Administrative Data

Objectives Demonstrate the translation of a research idea into a protocol with an analytic plan, including discussion on requirements for administrative data (AD) analysis, e.g., governance, time estimation. Foster discussion on processes for conducting AD research to enable learning and collaboration. ApproachParticipants were guided through three sections, and each alternated between presentations, group participation and discussion sessions. An overview of the Manitoba Centre for Health Policy (MCHP) Data Repository was presented to use as the framework for the AD discussion. Our chosen topic of discussion was: “How do health history and family history affect risk of poor outcomes for people with diabetes?” In small groups, participants discussed issues arising from translating the idea into a research plan. For example, define a cohort of people with diabetes, examine cardiovascular events as the outcome using survival analysis, and control for demographics, treatment compliance and family history of diabetes and cardiovascular events. We evaluated the feasibility of using AD to measure these variables. We discussed a method to estimate the time to conduct this proposed using AD, i.e., time for programming and analysis. Finally, we discussed data approvals and requirements when conducting research using AD. Conclusions and ImplicationsWe discussed the benefits and cautions of using AD and shared knowledge regarding research opportunities and obstacles across jurisdictions to identify commonalities and areas of opportunity for growth. The workshop was informative and interactive. It generated much discussion and was well-received among participants, with many asking for further information after the workshop concluded.

Future research plans to support forest carbon policy in Canada

Future research plans to support forest carbon policy in Canada

Academic Management and Teaching Effectiveness in Chinese Universities

This research utilized descriptive methodologies, integrating both quantitative and qualitative investigative approaches. In the qualitative analysis phase, the researcher plans to conduct in-depth interviews with the participants, aiming to obtain their intuitive perceptions and personal experiences of instructional management and teaching effectiveness. In this study, 2000 faculty members from three different universities were selected and 323 samples were calculated by Raosoft and 325 questionnaires were finalized to be distributed based on the professor s revised approval in order to explore the important relationship between instructional management and teaching effectiveness.

A Utilization of Marketing Strategies Through to Increase Sales of Umkm Member Products of The Wijaya Cfd Association In Sampang Regency

UMKM Actors, the use of digital marketing is the most appropriate solution to survive amidst technological developments. Utilization in conducting marketing or online transactions, the approach in this digital era is all technology-based services. One of the emerging technologies is the increasing activity through social networks. This study uses a descriptive quantitative method design, where the results are obtained to obtain information data. The research plan carried out by the researcher aims to find out what promotions are used by the CFD association in Sampang Regency. How social media can increase sales of MSMEs in the CFD Association. The results of the study are: (a) the results of the correlation coefficient test on the Entrepreneurial Characteristics variable (X1) against Business Success (Y) of 0.646; (b) the results of the correlation coefficient test on the Entrepreneurial Competence variable (X2) against Business Success (Y) of 0.734; and (c) Based on the results of data processing in the study, it can be seen that the Adjusted R Square determination coefficient value is 0.627, meaning 62.7% of the success of MSMEs in the CFD Association of Wijaya Regency. Lacquer

Application of Big Data in Digital Currency and Blockchain Finance

With the rise of emerging economic models, the cryptocurrency system, centered on the internet and electronization, is gradually returning to its core functions — storage, data processing, and related services. The deep value of massive data lies in rapid mining to uncover its inherent patterns, which is not only crucial for the operation, regulation, and monetary policy implementation of cryptocurrencies but also serves as an essential support for the transition from paper money to digital currencies. Given this, this research plans to conduct a detailed exploration of the application of big data in the field of cryptocurrency and blockchain finance, aiming to contribute to the continuous progress of China’s financial industry.

Comprehensive Review and Future Research Directions on ICT Standardisation

Standardisation has become imperative to retaining order and development in modern society. The simplest actions, such as train timings and the width of the railroad, would be very difficult to achieve without Standardisation. Standardisation also solves problems, such as the use of mobile devices, which requires travel abroad when out of range. We perform a large-scale quantitative analysis for papers dealing with (1) standards and (2) Information and communications technology (ICT) data in three important databases, namely Web of Science, IEEE Explore, and ACM digital library, in this paper. These three databases presented 216 articles that were divided into five categories: standard-related review and survey studies, information management across hardware and software standards, energy management standards, machine learning model classification performance, privacy-aware software system standards, and health information and communications technology standards. This paper discusses how Standardisation facilitates the planning of the entire research and innovation process by encouraging discussions regarding the specific outputs the research aims to achieve. The paper further illustrates that references related to standardisation within the call topics act as a crucial motivating factor in the decision to adopt standardisation. In conclusion, our contribution provides a better understanding of standards in peer-reviewed publications and an essential foundation for future research. In addition, we demonstrate that standards play an important role in innovation.

Adapting to change: experiences and recommendations from the Pain Management Collaboratory on modifying statistical analysis plans.

Best practices for clinical trials stipulate that statistical analysis plans (SAPs) need to be finalized before initiation of any analysis. However, there is limited guidance about when changes to SAPs are acceptable and how these changes should be incorporated into the research plan with appropriate documentation. We conducted a survey of 12 pragmatic clinical trials (PCTs) in the Pain Management Collaboratory that evaluated nonpharmacological interventions for pain to assess the following SAP information: (1) location of statistical analysis details, (2) types of statistical analyses planned, (3) sponsor requirements, (4) templates used for development, (5) publication plan, (6) changes since trial launch, (7) process of documenting changes, and (8) process of updating the trial registry. All 12 PCTs provided details of their SAPs for the primary outcomes in the institutional review board-approved trial protocol; 8 included plans for secondary outcomes, and 6 included plans for tertiary/exploratory outcomes. Most PCTs made SAP changes after trial initiation, many as a result of COVID-19-related issues. Eleven of the PCTs were actively recruiting participants. Changes were made to sample size, study design, study arms, and analytical methods, all before the data lock/unblinding. In all cases, justification for the changes was documented in the trial protocol or SAP, signed off by the trial biostatistician and principal investigator, and reviewed/approved by an institutional review board, data and safety monitoring board, or sponsor. We recommend that SAP changes can be acceptable up to the time of data lock/unblinding. To maintain full transparency and necessary rigor, clear documentation of such changes should include details, rationale, date(s) such changes were implemented, and evidence of approval by relevant oversight bodies.

المُظَاهَرَاتُ أصلُها وَحُكْمها في الإسلام

The topic of protests and Islam's stance on them are covered in this study. In recent years, there has been a discernible rise in demonstrations in many nations, with people taking to the streets and other locations for a variety of causes, such as political, social, economic, and so forth. These events, which are ways of expressing opinions, might be referred to as protests or demonstrations. Plan of research: It included three chapters, a preface, an index, a conclusion, and an introduction. There are the following chapters: - The definition of demonstrations and terms associated with them are covered in the first chapter. It has two prerequisites: The first prerequisite is a linguistic and terminological definition of demonstrations. The second prerequisite consists of terms associated with protests and their distinctions, such as rebellion, banditry, and strike. - The second subject is the sorts and purposes of protests in Islam: It has two prerequisites: The first prerequisite is the purpose of Islamic protests. The types and sorts of demonstrations are the second prerequisite. - The third topic is Islamic laws governing protests and their management. It has two prerequisites: The first prerequisite is Islamic regulations on demonstrations and protests. The second prerequisite is the Islamic ruling concerning protests. The most significant findings I came to after conducting the research are included in the conclusion. These findings include: - The term "demonstrations" is not new and normally refers to advocacy and support, but in modern times, it has come to refer to gatherings that take place in the streets and on public roads for the sake of an interest or to combat corruption. - Demonstrations are mostly used to communicate and express opinions, whether they be ones of satisfaction or dissatisfaction, and their motivations are centered around seeking an interest or combating corruption.

Research hotspots and frontiers in non-specific low back pain: a bibliometric analysis

BackgroundExtensive research has been conducted worldwide on non-specific low back pain (NSLBP), some researchers published a bibliometric analysis of NSLBP in 2020, but there have been no supplements or updates since then. Therefore, this study aimed to analyze the research hotspots and frontiers in NSLBP over the last decade.MethodsPrimary sources on NSLBP were obtained from the Web of Science Core Collection database from 2014 to 2023. CiteSpace V6.2. R7 (64-bit) and VOSviewer 1.6.19 software were used to analyze the number and centrality of journals, countries, institutions, authors, references, and keywords, and the functions of co-occurrence and clustering were applied to draw a visual knowledge map.ResultsIn the past decade, the annual publication volume of studies on NSLBP has shown an overall upward trend year by year, with obvious temporal stages and great development potential. In total, 2,103 articles contained six types of literature, with the highest proportion being original research articles (1,633 articles, 77.65%), published in 200 journals. BMC Musculoskeletal Discourses (90 articles, 4.28%) had the highest number of publications, and the British Medical Journal had the highest impact factor (105.7). Furthermore, the United States of America (329 articles, 15.64%) had the highest publication volume, the University of Sydney (139 articles, 6.61%) was the research institution with the highest production, Maher, Chris G (36 articles, 1.71%) was the author with the most published articles, and Hoy, D (571 articles, 27.15%) was the most frequently cited author. The most cited of articles is “Non-specific low back pain” published in the LANCET, with 1,256 citations.ConclusionThis article summarizes the current research status of NSLBP and predicts future research hotspots and frontiers. In recent years, adolescents have become a high-risk group for NSLBP. Pain neuroscience education, motor control, spinal manipulative therapy, and acupuncture are effective means to treat NSLBP. Biomechanics and trunk muscles as entry points are effective ideas for the treatment of NSLBP pain. Furthermore, anxiety, neck pain, non-specific musculoskeletal pain, fibromyalgia, and musculoskeletal disorders are diseases that are closely related to NSLBP. In the future, attention should be paid to the design of research plans, increasing the research intensity of randomized controlled trials, strengthening follow-up, and the timely updating of guidelines, which will result in higher quality and high-level scientific evidence for research on NSLBP.

A Study on Teaching and Learning by Competition in New Business Studies in Sichuan Tibetan Areas

How to improve the level of students' professional knowledge integration is a systematic project, especially after the construction goal of the new business discipline is put forward, it is a very significant challenge to the teaching of the new business discipline. Based on the research background of the comprehensive and professional disciplinary competitions such as Internet+ innovation and entrepreneurship, and the participating student teams as the research object, this paper points out that there are problems such as insufficient cognition of the value of promoting learning by competition, insufficient new student sources for promoting learning by competition and insufficient digitization of the participating teams, etc., and puts forward the research plan of integrating the teaching concept of promoting learning by competition into the talent cultivation program, digitizing the teaching by competition under the cooperation between schools and enterprises, and improving the teaching ability of teachers by competition, with a view to improving the teaching ability of the new business discipline. The research program of enhancing teaching ability by competition for learning is proposed in order to realize the cultivation of students who can flexibly apply their knowledge of inter-disciplinary knowledge at the level of their majors.

Application of safety and stability optimization algorithms for charging connection devices in high-power charging systems

In response to the safety and stability issues of current electric vehicle charging connection devices, this study proposes a charging system planning for electric vehicles with different capacity charging piles based on the user behavior characteristics of electric vehicles and Monte Carlo methods. It is found that the predicted results under the set management strategy are most consistent with the trend of actual load changes. Moreover, in the prediction of weekly load, the research strategy has better performance than traditional unmanaged strategies. Under the research scheme, the average charging speed of charging piles with capacity of A and B in the peak period was 41.4 min/ and 18.8 min/, respectively, which increased by 29.3% and 11.7% respectively compared with 58.6 min/ and 21.3 min/ in the normal period. The total economic cost of the research plan was 4.871 million yuan, which was 67.0 million yuan and 3.833 million yuan lower than the control methods 1 and 2, respectively. The total number of charging stations of types a and b that need to be purchased for the research method decreased by 18.47% and 63.24% compared to the comparative method 3. The results indicate that the research method significantly improves the utilization rate of charging stations in the electric vehicle charging system. This study has important application value in the intelligent management of electric vehicle charging systems.