bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research on unmanned vehicle obstacle avoidance technology based on LIDAR and depth camera fusion
Authors: Qiu Hao , Chen Weifeng , Ji Aihong , Hu Kai 
Published: September 2023

Abstract
To address the problems of poor accuracy of traditional EKF algorithm in estimating the position of unmanned vehicles and the deficiencies in accuracy and map completeness of the traditional map building method with single-line LiDAR, this paper proposes a method to create fused raster maps realized with multi-source data. Firstly, the combined data of the inertial measurement unit and wheel encoder are corrected by adding the positional information output from the visual odometer using the error-state SLAM algorithm, and the local raster constructed by LiDAR and depth camera is fused frame by frame using the idea of Bayesian estimation to finally generate the fused global map. Then, a four-wheeled mobile unmanned vehicle with a LiDAR sensor and depth camera is selected as the experimental object, and dynamic environment avoidance simulation experiments are conducted to draw conclusions. The simulation experiment results show that when γ = 5.99, the algorithm generates a new local target point p
g
2 (17.49, 13.49) and the corresponding getaway path and finally guides the unmanned vehicle to the specified target point, verifying that the method in this paper can achieve the avoidance capability of the unmanned vehicle in the process of getting away from the newly emerged obstacles. This study uses the scanned data of LiDAR for the estimation of the real-time position of the unmanned vehicle to realize obstacle avoidance and path planning of the unmanned vehicle.
A Study on Second Language Academic Writing Anxiety of Chinese Students Studying in Japan
Authors: Tian Jiayue 
Published: September 2023

Abstract
Anxiety is an important factor that affects the academic writing process and the quality of writing. In this paper, we first study the principle of emotional processing of EEG signals and discuss the pre-processing, feature extraction and emotional recognition of EEG signals. Then the signal features are extracted based on the EEG features of Daubechies wavelets, and the Mallat algorithm is improved by using the half-wavelet packet algorithm. The improved Mallat algorithm is then used to perform data downscaling of the resulting feature dimensions to achieve classification operations and feature selection. Finally, the model was used to assess the second language academic writing anxiety of college students in Japan, and the levels of second language academic writing anxiety of students in Japan with different levels of a second language, length of exposure to a second language, gender, and grade were analyzed. The mean score of academic writing anxiety was 68.04, and the overall level of academic writing anxiety among international students in Japan was moderate. The mean anxiety level of international students with a Level 1 second language level was 2.9, the mean anxiety level of international students with a Level 2 second language level was 3.07, and the mean anxiety level of international students with a Level 5 fifth language level was 3.15. The lower the second language level, the higher the anxiety level. This study provides insight and references for improving the academic writing skills of international students.
The application of BOPPPS teaching model in online and offline hybrid Civics teaching in universities
Authors: Xiong Ming 
Published: September 2023

Abstract
This study examines the hybrid online-offline teaching of civics in colleges and universities, with a particular emphasis on the analysis of the BOPPPS teaching model. The study also evaluates and analyzes the civics application under the BOPPS teaching model using the ID3 decision tree algorithm and the information gain method as attribute selection criteria. By integrating BOPPS teaching and online and offline hybrid Civics teaching, an online, hybrid teaching model platform based on BOPPPS is constructed. The teaching impact of the BOPPS online and offline hybrid Civics education was confirmed when combined with the empirical data. According to the findings, 66% of students anticipate learning about civics online, and 77% anticipate learning about civics both online and offline. The standard deviation for traditional instruction is 5.7819; for “online resources + offline classroom teaching,” it is 5.832; for BOPPPS teaching, it is 8.3988; and for BOPPPS teaching with online and offline integration, it is 6.0921. This study is helpful for fostering innovation and growth in both offline and online education at colleges and institutions. Hybrid civics education’s evolution and innovation.
Machining hardening and dislocation modeling of magnesium alloys based on Fields-Backofen equation
Authors: Zhang Congzheng , Liang Chen , Fan Yucheng , Jiang Jiahui , Sun Xuehan , Yuan Qingsong , Guo Haoyu 
Published: September 2023

Abstract
Magnesium alloys are now widely used, and the Fields-Backofen equation is combined with an investigation of the properties of common magnesium alloys in order to be able to better analyze them. In this paper, some properties, applications and superiority of magnesium alloys are first analyzed, in which the plastic deformation mechanism slip and twinning of magnesium alloys are particularly explored in detail. Focusing on the stages and model of machining hardening dislocations of magnesium alloy, and combined with Fields-Backofen equation, a model of machining hardening and dislocations of magnesium alloy based on Fields-Backofen optimization is constructed. Then the constructed model was applied to stage III of machining hardening dislocations in magnesium alloy for performance testing. The predicted and actual maximum values of the model were 132MPa and 30MPa, which were in basic agreement with 130MPa and 32MPa. The saturation stresses ranged from 50 MPa to 6 MPa for temperatures from 100°C to 500°C when the strain rate of the dislocation processing stage was 10−2 s−1, and from 55 MPa to 10 MPa for temperatures from 100°C to 500°C at a strain rate of 10−3
s
−1. Finally, only basal slip and twin initiation with higher saturation stresses were obtained at lower temperatures. As the temperature continues to increase, the dislocation density decreases, plastic deformation becomes easier, and then the saturation stress decreases.
Digital Intelligence Civilization Drives New Business Civilization: A Theoretical Framework for the Collaborative Ecosystem of Digital Culture and Tourism Industry
Authors: Huang Ping , Shi Yali , An Junxiu , Qiao Shaojie , Jin Liya 
Published: September 2023

Abstract
The promotion and utilization of information technology have promoted the transformation and upgrading of the industrial structure and economic structure of cultural tourism, making the traditional operation methods no longer applicable to the current operating environment. This paper analyzes the triple coupling mechanism of the cultural tourism industry, information technology and the ecological environment from the synergy of four elements: space, economy, culture and ecology. On this basis, the system dynamics concept is used to view the digital cultural tourism industry and ecological protection as a unified whole, to build a synergistic logic between the main factors in the whole, and to analyze the synergistic relationship between the two subsystems using the DPSIR framework. The results of the empirical analysis of the synergistic development efficiency of each region in China from 2011 to 2020 show that the coefficient of variation of the digital cultural tourism subsystem is the largest, which is between 1.1836 and 1.3705, indicating that the development level of digital cultural tourism varies greatly among Chinese provinces. The mean values of the integration synergy degree of the four-time nodes are 0.2226, 0.2678, 0.3549 and 0.4052, respectively, and the level of integration synergy is generally on the rise. In this paper, we effectively promote the integration of the cultural tourism industry and the ecological environment through information technology while being able to utilize ecological capital in perpetuity and realize the high-quality development of the cultural tourism industry.
A Study on the Evaluation System of Aesthetic Education in Guangdong Higher Education Institutions in the Context of Internet+ Education
Authors: Yang Qin 
Published: September 2023

Abstract
With the rapid development of the Internet and multimedia, aesthetic education in colleges and universities has an unprecedented strategic opportunity in the field of innovative education and teaching methods and the construction of high-quality network teaching resources. This paper firstly constructs the evaluation system of college aesthetic education network teaching, determines the index system according to the cultivation goal and education of college aesthetic education, the index system gets 3 primary indicators and 9 secondary indicators, and revises the name and connotation of each evaluation index through the agreement survey. Using hierarchical analysis and the entropy method to assign weights to indicators and calculate the weights of corresponding indicators, the relative weight system of university aesthetic education network teaching evaluation is constructed, and the weights are used to judge the discrete degree of each indicator of the evaluation system. The results show that the average comprehensive weight value of 23 secondary indicators is 0.6809, and the comprehensive weight of “Situational image Z
64” is 0.927, which indicates that the expert group agrees on the overall opinion of the evaluation indicators of college aesthetic education network teaching and verifies the practicality of the evaluation system, and the college aesthetic education teaching should start from many aspects to promote the overall development of students. Thereby promoting students’ all-around development. This study proves that the evaluation system is indeed reasonable, reliable and stable and provides teachers and students with intelligent decisions for improvement.
Research on New Liberal Arts Professional Talent Cultivation Model Based on OBE Concept
Authors: Lyu Bu , Chen Jianhui , Wang Na , Cao Jianlei 
Published: September 2023

Abstract
In this paper, an evaluation model is constructed to evaluate the new talent cultivation model of liberal arts under the OBE concept by analyzing the steps and ways of the model. The system of talent cultivation is determined by establishing the sample value and the whitening weight function of the gray class, and the system indicators are represented using the gray clustering weights, clustering coefficients, and clustering vectors. Then the system indexes are processed, and a multi-level DEA model is introduced on the basis of the gray clustering talent cultivation evaluation system. Finally, the multi-level gray clustering talent cultivation comprehensive evaluation model was constructed. The evaluation of the talent cultivation model is B=(0.4, 0.51, 0.09, 0, 0), and the overall evaluation result of the talent cultivation model is “excellent” according to the principle of maximum affiliation according to the calculation results.
Analysis of the integration development of enterprise refinement management and financial integration in the context of informationization
Authors: Yuan Fei 
Published: September 2023

Abstract
In the background of economic informationization, the integration and development of enterprise refinement management and financial integration have become the mainstream management direction of modern enterprise management. In this paper, the correlation function and judgment matrix are firstly determined by the entropy-weighted elementary topologizable evaluation model, while the initial judgment matrix V is standardized, and the differences in the correlation degree of indicators of different natures should be noted. The entropy power method is applied to calculate the change of relevant evaluation indexes, and the value of information utility in the evaluation system is determined through the change of entropy value. Then the initial data are obtained by means of questionnaires, and data analysis is performed on the first-level indicators in the evaluation system of enterprise financial management capability. The results show that the three indicators of financial risk control capability, financial management informationization level and financial personnel capability, and total budget management level have more room for improvement, but the score of financial risk control capability is only 5.04 points different from the total score, indicating that the specific situation of the enterprise itself for specific analysis. This study improves the level of financial management of enterprises and promotes their development of enterprises.
Research on the Construction of Innovation and Entrepreneurship Education Model System in Universities Based on Big Data Technology
Authors: Zhang Rui , Li Huajin 
Published: September 2023

Abstract
This paper aims to build a system of innovation and entrepreneurship education model in colleges and universities. Focusing on the analysis of measurement variables and structural variables in SEM, the evaluation model of college innovation and entrepreneurship education is constructed under the analysis process based on the structural equation model. The path diagram of the standardized solved structural equation model of practice teaching evaluation is outputted through software correction, and the standardized weights of evaluation are determined by combining the structural equation of college innovation and entrepreneurship practice teaching quality evaluation. Apply the evaluation principles to test whether the evaluation model is reasonable. By analyzing the form of innovation and entrepreneurship teaching, the evaluation is conducted according to the structural equation formula to find out the shortcomings in practice for improvement and refinement. The results show that in the dimension of practical teaching preparation, (H1) corresponds to effect coefficients of 0.47, 0.47, 0.60 and 0.53, and the percentages of students who receive innovation and entrepreneurship education courses very systematically are 3.5%, 5%, 6% and 9%. Most of the students were very satisfied and satisfied with the innovation and entrepreneurship courses, with 45% and 40%.
Analysis of the opportunities and challenges of information technology for enterprise development strategy based on big data technology
Authors: Yin Fangfang 
Published: September 2023

Abstract
Based on big data information technology, this paper analyzes the opportunities and challenges of business development strategies. The clustering algorithm and tree model algorithm in data mining is analyzed. In order to effectively solve the problem of big data classification in consumer-oriented enterprises, the Kmeans clustering algorithm and XGBoost algorithm in the two previous models are integrated to effectively avoid the problem of over-fitting when the models are used alone. The opportunities and challenges in the current stage of business development strategy are analyzed separately. The Kmeans-XGBoost algorithm is used to analyze the pricing and output of the enterprise for prediction. It is shown that the prediction curves of the Kmeans-XGBoost model basically match the actual values, and the confidence interval range is expanding from [3694.879,7202.897] to [2211.819,8406.462]. Meanwhile, the errors of enterprise output prediction under different algorithms are analyzed. The error rate weighted by Kmeans-XGBoost mean is 42.63, which is lower than the traditional model prediction error in 4.
The integration of traditional lacquerware and modern art design in the context of artificial intelligence
Authors: Xu Hang 
Published: September 2023

Abstract
This paper aims to promote the integration of traditional lacquerware and modern art design. AR technology is used for feature calculation of the appearance contour of traditional lacquerware. In this paper, the BRIEF algorithm is selected as the main algorithm for image feature calculation. The Steer BRIEF algorithm is used for key points, and the image feature points are extracted. The classical optical flow method of CMT is applied to track the appearance contour of traditional lacquerware, and the SSD and NCC are combined with filtering the measurement of tracking points. The results show that 90% of the traditional lacquerware can reflect the cultural connotation of the time, 80% of the traditional lacquerware can reflect the characteristics of the time, 80% of the traditional lacquerware has excellent craftsmanship, and the added value reflected by modern art design is much lower than that of the traditional lacquerware.
Research on the whole process monitoring and management of coal digital production based on IOT technology
Authors: Tang Juan 
Published: September 2023

Abstract
This paper firstly explores the method and monitoring process of coal SPC production quality monitoring based on IOT technology and simulates different control chart patterns using the Monte Carlo method. Then a control chart pattern recognition model based on PCA-PSO-SVM is established to downscale the collected data using the PCA method and quickly discriminate whether the control chart is abnormal or not based on the OC-SVM algorithm. By identifying abnormal control chart patterns, real-time monitoring of the coal production process is realized. Finally, comparative analysis and fault source analysis are conducted to verify the sensitivity and effectiveness of the monitoring method in this paper. The difference in methane concentration between the experimental group and the comparison group is less than 10ppm, CO concentration is less than 5ppm, and dust concentration is less than 0.05mg/m3. It shows that the method of this paper is very effective for coal production monitoring.
Innovation in thinking and practice path of digital economy based on big data analysis to promote high-quality development of agricultural service trade
Authors: Zhang Yanhong 
Published: September 2023

Abstract
In order to coordinate the digital geographic planning of agriculture and clarify the grasp of agricultural integration and digital development, by building a connected coordination model of the digital economy and the high-quality growth of the agricultural services trade, this article is confirmed. First, the fundamental workings of the digital economy and their spatial spillover effects on the high-quality growth of the agricultural services sector are examined. To evaluate each method’s level of development, the TOPSIS methodology and the entropy value method are linked, and a coupling coordination model is created. The production of the high-quality agriculture service trade and digital economy index system follows. In the end, the empirical study of coupling coordination was carried out using data from each province in China from 2010 to 2020 as the original sample. The findings indicate that before 2015, in all provinces, the coupling coordination degree of the development of the agricultural service trade and the digital economy was less than 0.2. The coupling coordination degree showed a tendency of moderate expansion from 2016 to 2020, increasing by 583.33% from 2010 to 2020. This shows that as the digital economy has expanded, the agriculture services sector has also developed in a high-quality manner.
A MCDA-Based Assessment of Biomethane Generation and Use in Sardinia
Authors: Asquer Carla , Romagnoli Francesco 
Published: September 2023

Abstract
The selection of a local and sustainable use of biogas, and biogas feedstocks, towards the upgrading process to biomethane, is a key aspect towards more consistent energy planning within the frame of the EU Green Deal and Sustainable Development Goals. In this paper, four biomethane production and utilization pathways were assessed in the view of economic, environmental, technological, and social dimensions compared to a reference scenario in which direct biogas use in a cogeneration unit is assumed. The technologies analyzed included membrane systems, amine scrubbing, water scrubbing, and biological methanation, regarding the Sardinian context. The impact assessment was carried out using the TOPSIS method. As an output, thirteen consistent indicators reflecting the holistic aspect of sustainability were designed and proposed based on an in-depth literature review and the authors’ technological knowledge. The results show that the reference scenario was the preferable one. In terms of environmental and social considerations, biological methanation emerged as the most environmentally and socially responsible alternative. From the economic perspective, all the upgrading options depicted similar results. The technological-oriented weighting showed that the two most widespread upgrading options highlighted the optimal results.
An elastoplastic constitutive model for assessing ground settlements induced by deep excavations
Authors: El-Arja Hiba , Burlon Sébastien , Bourgeois Emmanuel 
Published: September 2023

Abstract
Ground movements induced by deep excavations may cause damages on neighboring existing buildings. Finite element simulations generally give acceptable estimates of the horizontal displacements of the retaining wall, but results are less satisfactory for the vertical displacements of the ground surface behind the structure. A possible explanation is that most constitutive models describe volumetric strains in a simplified way. This paper proposes an elastoplastic constitutive model aimed at improving the prediction of vertical displacements behind retaining walls. The model comprises a single plastic mechanism with isotropic strain hardening, but has a specific flow rule that allows to generate contractive plastic strains. Identification of the parameters based on triaxial tests is explained and illustrated by an example of calibration. A numerical analysis of a well-documented sheet pile wall in sand in Hochstetten (Germany) is presented. The results given by the model are compared with the measurements and with those obtained using the Hardening Soil Model. The potential advantages of the proposed model are then discussed.
نحو نظرية للدور في العقود المدنية ( دراسة تحليلية مقارنة )
Authors: محمد علي شيلان , حمد سمايل تحسين 
Published: September 2023

إن نظرية الدور محل دراستنا تعد من ابرز النظريات الاجتماعية ذات العلاقة بالتنشئة الاجتماعية، وبالتالي فهي من حيث الاصل والنشأة من النظريات التي استخدمت في مجال علم الاجتماع، إلا انه ليس هنااك ما يمنع من توظيف هذه النظرية كفكرة لتجسيد نظرية اجتماعية في مجال القانون وبالتحديد في نطاق العقود المدنية، وذلك من اجل تفسير السلوكيات الخاصة بالقاضي عند النظر في المنازعات المدنية، أو الاطراف في العلاقة التعاقدية، وذلك لغرض تحقيق العدالة العقدية -متمثلاً في التوازن العقدي- والاستقرار القانوني، واللذان يعتبران من الغايات الاساسية التي تسعى نظرية الدور إلى تحقيقها.
ان هذه النظرية وان كانت قابلة للإستخدام والتوظيف في نطاق العقود المدنية، إلا انها لم تسلم من الاشكاليات القانونية، إذ انها تواجه عدة إشكاليات تحاول هذه الدراسة ابرازها وايراد حلول قانونية لها، ومن هذه الاشكاليات منها ما تتعلق بأطراف العلاقة التعاقدية والمتمثل بالمشكلة الضمنية، ومنها ما تتعلق بدور الاجتماعي للقاضي المدني.
وأخيراً فإن هذه الدراسة تحاول وضع نظرية الدور موضع التطبيق، وممارستها ممارسة فعلية في جميع المراحل التي تمر بها العقود المدنية، من مرحلة الانشاء والتنفيذ، وحتى الانهاء، وذلك للتأكد من الجدوى القانونية لتلك النظرية، ومدى امكانية توظيفها في هذا المجال.