bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research on the Problems of Teaching Traditional Music Basic Theory in the Information Age
Authors: Zhang Yelin 
Published: July 2024

Abstract
In the era of informationization, the inheritance and development of traditional music are facing challenges and opportunities. This study analyzes the problems faced by teaching the basic theory of traditional music and proposes a coping strategy for constructing an interactive teaching model and platform for informatization. In the interactive teaching model, P2P technology is used to design and construct the interactive behavior model and interest analysis module, and fuzzy theory is used to precisely set the key information weights. The informationized teaching platform is designed with AI technology, adopting the recommendation strategy of a hybrid recommendation model combined with collaborative filtering, using cosine similarity to calculate the content similarity, and combining with artificial intelligence technology to realize music teaching quality assessment. In the traditional music basic theory teaching practice, S High School is used as a practice site, and experimental and control classes are set up to conduct teaching. The experimental class perceived negative behaviors such as “harshness” and “dissatisfaction” as lower than the control class, and the pass rate and excellence rate of the post-test of traditional music basic theory reached 92.5% and 36.9%, respectively. The mean values of all other music core literacy dimensions except for knowledge of opera and general knowledge of musical instruments were higher than those of the control class, showing significant differences (P<0.05).
Research on animated physics courseware technology for digital media
Authors: Zhou Bo , Zhao Jie , Xu Jiangyong 
Published: July 2024

Abstract
Education informatization is an important means to improve the quality of education and teaching as well as a basic condition for the innovative reform and application of education and teaching, which also means that education informatization cannot be separated from the construction of digital learning resources. This paper utilizes the advantage of Flash technology’s integration of multiple media elements to design physics animation courseware. Then, it combines the color histogram and edge density analysis algorithm to segment the animated visual scene of physics courseware, optimize the production process of Flash physics animated courseware, and establish a scientific evaluation standard for courseware quality. The average scores of the four dimensions of manipulability, stability, aesthetics, and compatibility in the evaluation results of physics animated courseware in this paper are all higher than 4 points. The students who apply physics animated courseware to teach improve their learning attitudes, learning behaviors, and learning effects by 11.61, 7.33, and 6.54, respectively, compared with the traditional physics teaching, and all of them are significantly different (P<0.05). This paper’s physics animation courseware is effective in improving students’ performance in physics courses and provides valuable information for the development of digital teaching resources in the future.
Research on Intelligent Manufacturing Technology of Tobacco Enterprises Based on RFID
Authors: Wang Peng , Xu Yuxing , Zeng Weiwei 
Published: July 2024

Abstract
Tobacco companies a fast-moving consumer goods wholesale enterprises in the storage, procurement, logistics, and distribution of all aspects of the close relationship with warehouse management. This paper takes RFID technology as the theoretical basis and explains the introduction. It finds that FRID is composed of a reader, electronic tag, antenna, and local server as its main components. Then, it proposes to apply RFID technology to manufacturing enterprises and describes the application mode of the relevant manufacturing enterprise system based on RFID. At the same time, based on RFID algorithms and technology, the system of the tobacco enterprise was tested and analyzed, completing the function test and performance test. In the performance test, RFID and PLC technology and industrial Ethernet automatic control system to do the data comparison found that RFID in the system with the increase of the user command response time is still very flexible, to do in more than 18000/s. Subsequently, with the support of RFID, the application in tobacco production was experimentally analyzed to verify the practicality of RFID manufacturing technology in the tobacco production process.
Research on Key Technologies of Remote Operation and Maintenance System for Substation Automation Equipment
Authors: Lu Heping , Zhang Yonghong , Liu Yuan 
Published: July 2024

AbstractWith the help of automation technology, the efficiency and reliability of substation operations are synchronized. However, the equipment will operate under abnormal problems for a long time. If the problem is not resolved promptly, the consequences will be unimaginable. For timely detection of problems, this paper proposes a method for the construction of remote operation and maintenance systems. The remote operation and maintenance system is mainly composed of two-factor authentication, responsibility area authentication, and permission authentication. The security of remote operations and maintenance operations is guaranteed with the support of these key technologies. This paper enhances the safety and stability of automation equipment by offering remote wake-up, remote reset, historical information retrieval, and forwarding table monitoring services in the operation and maintenance service module. Adopting IoT technology, the core management module of remote management of master stations is constructed to ensure the safety of remote operations and maintenance data interaction between master stations and sub-stations. Simulation experiments are being conducted to evaluate the performance of IoT technology in remote operations and maintenance interactions at the main station. The energy consumption of the data interaction module of substation automation equipment is 0.19 and 0.012 mA for 1 hour and 1 day, respectively, for the equipment to operate for 5-10 days, where the advantages of IoT technology are reflected. The processing time of the operation and maintenance personnel under the traditional operation and maintenance and remote operation and maintenance modes were analyzed through comparative experiments, and the processing time of the device dead time was reduced from 175.46 minutes to 4.356 minutes after using the remote operation and maintenance system, and the efficiency of the operation and maintenance personnel was improved.
Correlation Mining-Based Strategies for Improving the Quality and Efficiency of Financial Data Center Operation, Maintenance, and Monitoring in Cloud-Native Models
Authors: Gao Kun , Xie Yangjun , Zhang Liang 
Published: July 2024

Abstract
At present, the daily operation and maintenance of large-scale data centers such as banks in China, due to a variety of reasons, often brings about the problem of unexpected events that are difficult to locate. In order to ensure that the systems running in the data center work efficiently, this paper proposes a method for improving the operation, maintenance, and monitoring of financial data centers based on the cloud-native model. First, we sequentially cleanse and process the financial center data to eliminate any negative impact and generate a time-trending correlation of financial attributes. We then apply association mining to data center operation and maintenance, using stock information as an example to analyze the operational results in stock trading transactions. The result of correlation mining is component B index (up)⇒ component A index (up), support = 12/100, confidence = 12/19, which indicates that in 100 trading days, the number of days that the component B index and the component A index rise together is 12 days, while the number of days that the component B rises alone is 19 days. In the case study examining the impact of association mining in stock trading, on March 15, 2022, the stock price experienced a rise from 11.456 to 11.498 within a mere 0.1s. The financial data operation and maintenance system, using association mining, identified this as “abnormal,” demonstrating the model’s successful detection of abnormal behavior.
Research on Operation and Maintenance Strategy of New Energy Photovoltaic Power Generation System Considering Extreme Weather Conditions
Authors: Hao Shouli , Wang Siyuan , Wang Zhijian , Qiao Yanjun , Yu Junfeng , Fan Ke 
Published: July 2024

Abstract
This paper employs the gray correlation analysis method to compute the correlation between irradiance, ambient temperature, wind speed, and photovoltaic power generation efficiency. This method relies on screened data for data normalization, and after processing, it determines the degree of similarity between the factors. We propose a dynamic combined maintenance strategy for PV power generation systems that considers reliability, overhaul resources, and overhaul time constraints. We propose a two-layer optimization strategy based on extreme weather factors and failure-related characteristics, and we use empirical analysis to investigate the maintenance strategy’s effectiveness. The analysis reveals a positive correlation between irradiance and PV power generation efficiency, with a multiplicative increase in the range of 1-3. In the correlation analysis of ambient temperature and wind speed variables, the power generation curve is not consistent with its trend, which is related to the influence of extreme temperature and extreme wind speed, and the meteorological factors affecting the PV power generation efficiency change at different moments of the day, where the correlation coefficient at 6:45 is 0.912. When the failure correlation strength increases to a value of 0.1, the number of repairs rises to 8. When the weather accessibility ratio is 0.2, the reduction in system availability is up to 62%. The two-layer optimization strategy, which considers extreme weather factors and failure-related characteristics, is both economical and universal.
Application of JSA, a Sentiment Analysis Model in Chinese Language and Literature, to Sentiment Recognition in Classical Poetry
Authors: Li Yali 
Published: July 2024

Abstract
Classical poetry embodies the essence of traditional Chinese culture, and its lyricism and infectiousness provide an ideal platform for educating about emotions. However, due to the West’s influence in modern times, the teaching of classical poetry has not expanded to include the emotional aspect. Therefore, this paper establishes the JSA model as the research model for recognizing emotions in classical poetry, based on an analysis of existing methods for recognizing emotions in Chinese literature. Upon scrutinizing the JSA model’s construction, we discovered that it overly relies on the distribution of emotions for theme generation. Consequently, this paper enhances the JSA model by situating the emotion layer between the theme layer and the word layer, builds the reverse JSA model, and employs Bayesian estimation to estimate the model’s parameters. In this paper, we use classical poems as an example to demonstrate how to analyze the sentiment of classical poems by recognizing tone auxiliaries. The improved JSA model’s emotion recognition effect closely aligns with the actual expression effect of the poems, demonstrating the effective application of the advanced JSA model in this paper for emotion recognition of classical poems.
Optimization of coal chemical process parameters and energy saving and emission reduction based on genetic algorithm
Authors: Song Xiang 
Published: July 2024

Abstract
Coal is an important energy resource. How to utilize it efficiently and cleanly is a hot topic nowadays. In the coal gasification process, the process parameter indexes have a significant impact, and the uncertainty of these factors will lead to a decrease in the quality of gas production. Therefore, in this paper, the uncertainty of process parameters is considered, and Aspen plus software with the Monte Carlo method is used to simulate the coal chemical process and measure the effect of uncertainty of process parameters on the yield of the coal gasification process. On this basis, in addition, coal flow rate, pressure, and steam/oxygen are taken as the process parameters and optimized, and three sets of multi-objective optimization models are established with gas calorific value, gasification efficiency, and gas yield, respectively, which are solved by improved multi-objective genetic algorithm based on crossover operator and variational operator to obtain Pareto curves, so as to adjust the parameter values according to the actual needs. The results show that the fluctuation of pressure has a big influence on the carbon conversion rate and gasification efficiency, and the carbon conversion rate and gasification efficiency can be made more stable by controlling the change of pressure. The improved genetic algorithm NSGA-II can reach the actual optimal objective function value in both high and low iteration times, providing the required parameters for the decision maker, and the optimal program results in TEC of 402,758 kW and CO2 content of 0.12%, which is effective in energy saving and emission reduction.
The trajectory of technological exchanges and modern communication technologies in the context of opening up to the outside world in the late Qing and early Republic of China
Authors: Liu Yong 
Published: July 2024

Abstract
During the end of the Qing Dynasty and the beginning of the Republic of China, the development of communication technology was closely correlated with societal progress. The social turmoil in the late Qing and early Republican periods, the social situation of “internal and external problems,” and the trend of “coming in” and “going out” of technological exchanges contributed to the introduction of modern communication technology, newspapers and magazines, and the establishment of the telegraph and the telephone. This led to the introduction of modern communication technology, represented by the telegraph and telephone, as well as the rise and establishment of newspapers and magazines. The national telegraph and the May Fourth Movement further enhanced the influence of the telegraph and communication technology on social development. The study analyzes the sources of funds, the number of subscribers, the number of telephone offices, the mileage of lines, the development of governmental telegraphs in each province, and the development of telegraphs in each country. It explores the development trend of communication technology in the late Qing Dynasty and the early Republic of China, taking into account the interactions between the social conditions of the late Qing Dynasty and the development of telegraphs. Based on the monthly revenue of the telephone bureau, the Beijing Telephone Bureau’s installation fee in 1909 was approximately 1,799 yuan, with the telephone fee and the Electricity Bureau’s appropriation primarily financing its construction. Towards the end of the Qing Dynasty, the Beijing Telephone Bureau extended its telegraph lines and increased the number of users. By 1911, the telegraph lines’ mileage had reached about 99,979 miles, indicating a relatively rapid development. However, the telegraph business remained significantly behind that of other countries.
Exploring the Influencing Factors on the Quality of Japanese Language Classroom Teaching in Colleges and Universities Based on Structural Equation Modeling
Authors: Xu Xiangpu 
Published: July 2024

Abstract
In this thesis, the Japanese language major in the College of Foreign Languages of University J was selected as an example, and the research method combining quantitative questionnaire and qualitative research was used to investigate the development trend and current situation of Japanese language teaching. Structural equation modeling was used to analyze and hypothesize factors that affect the quality of Japanese classroom teaching. Data was collected, processed, and analyzed with relevant regression statistics to study the statistical regularities among variables with correlations and to verify the research hypotheses proposed in this study, as well as the correlations. The results showed that there was an extremely significant causal relationship (Sig. < 0.01) between teacher level: professional ethics and teacher teaching, teacher professional knowledge, resource inputs and teaching content, and teacher professional competence, teaching content, and teacher teaching. Student level: there is a significant positive effect (Sig<0.01) between students’ personal qualities, student learning and learning outcomes, learning inputs, and student learning and learning outcomes. Industry level: there is an extremely significant causal relationship (Sig<0.01) between industry needs and teaching objectives, resource inputs, teaching content, and teacher teaching.
The effects of foam rolling applied to delayed-onset muscle soreness of the quadriceps femoris after Tabata training
Authors: Boguszewski Dariusz , Krawczyk Agata , Dębek Marlena , Adamczyk Jakub Grzegorz 
Published: July 2024

Abstract

Study aim
The aim of the present study was to assess the effect of roll-over self-massage on the occurrence of symptoms of delayed post-workout muscle soreness after Tabata training.

Material and methods
The research involved 81 people, randomly divided into two groups. A series of three roller self-massages was applied by members of Group 1 (n = 33). Persons assigned to control Group 2 (n = 48) did not undergo any procedures supporting the post-workout recovery. All participants performed training of lower limb muscles, according to the Tabata protocol. Then the frontal surface of the thighs was tested with a thermal imaging camera. The intensity of pain was measured (by the Visual Analogue Scale – VAS) after 24, 48 and 72 hours.

Results
The highest average pain level in Group 1 was recorded at the second measurement, i.e. 24 hours after training, and in Group 2 after 48 h. In the study group, a significantly lower result was observed on each successive day. The differences between the groups in pain levels measured 48 and 72 hours after exercise were statistically significant (p < 0.05).

Conclusion
Self-massage with a roller accelerated muscle regeneration. It can therefore be an effective procedure to support post-workout recovery, especially for athletes during the start period.
Analysis of the significance of echocardiographic signs of right ventricular dysfunction for predicting the outcome of heart failure with reduced left ventricular ejection fraction
Authors: Skidan V. I. , Pavlyukova E. N. , Nartsissova G. P. , Voronkov V. M. , Astapov D. A. , Rosseykin E. V. 
Published: July 2024

Objective: to determine the ultrasound signs of right heart dysfunction, which increase the prognostic value of the recommended parameters of left ventricular (LV) dysfunction in patients with heart failure with reduced ejection fraction (HFrEF).Materials and methods. The prospective study included 79 patients with HFrEF LV with clinical manifestations of chronic heart failure functional class III according to the New York Heart Association (HF NYHA Class III) in 52 patients (65.8%) and HF NYHA Class IV in 27 (34.1%). The primary end point was death during a follow-up period of up to 3 years while waiting for heart transplantation.Results. Overall mortality was 33 patients (41.7%), 17 (21.5%) during the 1st year of follow-up. Regression analysis revealed the following independent ultrasound predictors of poor prognosis: LV ejection fraction on 3D-echocardiography (3DE LVEF), p = 0.014; global longitudinal strain of the LV (GLS LV), p = 0.010, and of the interventricular septum basal segment (IVSLS BS), p = 0.012; mean longitudinal strain of the basal segment of the right ventricle free wall (FWLS BS RV), p = 0.003. Changes in the configuration and dilatation of the LV cavity, an increase in LV end-diastolic pressure, impaired contractility, and strain of the LV myocardium can affect the function of the right ventricle (RV) through the common interventricular septum (IVS). Dilatation of the RV due to an increase in the end diastolic area (RV EDA) of more than 30 cm2 (p = 0.012) and end systolic area (RV ESA) of more than 25 cm2 (p = 0.001), an increase in the volume of the right atrium (3DE AKI) of more than 100 ml (p = 0.036), and a decrease in the % inspiratory collapse of the inferior vena cava (% IVC) less than 30% (p = 0.005) demonstrated a prognostic significance in the observed patients. A decrease in the deformation properties of the pancreas due to the longitudinal component and impaired strain of the basal segment makes a greater contribution to RV dysfunction (FWLS BS, % < -15% (p < 0.001)).Conclusions. RV dysfunction in patients with HFrEF is an unfavorable prognostic factor, independently associated with existing LV dysfunction. The most significant ultrasound sign for surveillance prediction of patients with LV HFrEF and RV dysfunction are indicators of ventricular myocardial deformation. Remodeling of the right chambers and dysfunction of the RV is a trigger for the separation of the RV and pulmonary artery, which ultimately leads to adverse outcomes.
The changes in ultrasound parameters during treatment of chronic endometritis depending on the morphological type in women of reproductive age
Authors: Ozerskaya I. A. , Kazaryan G. G. , Gus A. I. 
Published: July 2024

Objective: to evaluate the dynamics of echographic parameters of structural changes in the endometrium depending on the morphological type of chronic endometritis (CE) before and after etiotropic therapy.Material and methods. A retrospective cohort based on the results of examination of 140 patients of reproductive age with a verified diagnosis of CE before and after complex etiotropic therapy. A pelvic ultrasound was performed in the 1st phase of the menstrual cycle with measurements of the endometrial and uterine volume, followed by a calculation of the percentage endometrial/uterine volume ratio (EV/UCV). The groups of hypoplastic, mixed, and hyperplastic morphotypes were formed according to the values of EV/UCV. The B-mode examination included the assessment of the structure and echogenicity of the uterine cavity mucosa; the line of closure or divergence of the endometrial layers; the external contour of M-echo; the presence of liquid in the uterine cavity, and acoustic artifacts, in particular reverberation, as a sign of gas bubbles.Results. An increase in the thickness and volume of the endometrium, and EV/UCV was obtained after therapy in the hypoplastic morphotype. There were no changes in the thickness or volume of the endometrium in the mixed morphotype. A significant decrease in the thickness and volume of the endometrium, and EV/UCV were found in the hyperplastic morphotype. In all morphotypes, the endometrium remained mostly hyperechoic and heterogeneous, with an abnormal midline.Conclusion. The hypoplastic and mixed morphotypes are characterized by more persistent endometrial changes that are difficult to treat. Pathological signs were eliminated much more often in the hyperplastic morphotype. The results of the study demonstrate the absence of a complete reduction in the analyzed ultrasound criteria of CE after end of treatment for all morphological types.