bluuebunny/crossref_metadata_2025_split huggingface dataset:
Performance evaluation of untreated sugarcane bagasse ash as partial replacement of cement on setting time and compressive strength of M15 concrete
Authors: Olopade S. , Ngene E. 
Published: October 2024

Due to its escalating cost, cement, the primary component of concrete, has become a significant issue in Nigeria over time. The use of agricultural wastes such as cow bones, periwinkle shells, rice husks,and sugarcane bagasse as additives to partially replace cement has been made possible by scientific efforts to find alternative and effective materials from large deposits of agricultural wastes. This study examines how adding sugarcane bagasse ash (SCBA) to concrete affects its strength properties. Sugarcane bagasse ash was successfully included in various amounts (0, 2.5, 5.0, 7.5, and 10% by weight of cement). A mix design of 1:2:4 (M15) grade and a water-cement ratio of 0.5 was used to cast 60 concrete cubes measuring (150 x 150 x 150) mm. Concrete's workability and setting time were improved by adding sugarcane bagasse ash to the cement. The outcome revealed a reduction in concrete density with an increase in percentage replacement of sugarcane bagasse ash. Addition of sugarcane bagasse ash to cement increased the concrete's workability and speed of setting. The results showed that concrete density decreased as sugarcane bagasse ash replacement percentage increased. This is not unrelated to the fineness of sugarcane bagasse ash, which makes the cementitious matrix and aggregate interface more intense and lighter. Concrete's compressive strength was discovered to be decreased by the usage of sugarcane bagasse ash. Between 0, 2.5, 7.5, and 10% sugarcane bagasse ash, the average compressive strength measured at 28 days was found to be 25.93, 25.19, 23.70, 20.30, and 18.96 MPa, respectively. 10% sugarcane bagasse ash concentration was suggested as the optimal level to employ for improving concrete characteristics.
TPACK and its Contribution to Develop Differentiated Learning in Elementary School
Authors: Mardati Asih , Maryani Ika , Suyatno Suyatno 
Published: October 2024

This research aims to find out how teachers' TPACK can contribute to their skills in developing differentiated learning. This research uses a type of correlational research. The population in this research is elementary schools that have used the independent curriculum in the city of Yogyakarta. The sample in this study consisted of 20 subjects, and the sampling technique used was stratified random sampling. The data collection technique used was a questionnaire. The instruments in this research were questionnaire grids and questionnaire sheets. The data analysis techniques used are descriptive and inferential statistics. The research results show that the value Sungai Pearson TPACK 0.894 has a positive value, CK 0.783 has a positive value, TK 0.782 has a positive value, and PK 0.869 has a positive value. PCK 0.835 has a positive value, TCK 0.866 has a positive value, and TPK 0.861 has a positive value. It can be concluded that the teacher's TPACK has an influence and is closely related to the teacher's skills in developing differentiated learning
Analysis of Russian scientific and technical journals in the field of control theory and systems
Authors: Taranovskiy D. O. , Stepanov O. A. 
Published: October 2024

The article presents the analysis of Russian journals whose topics are related to the areas of activity of the Scientific Council on Control Theory and Processes at the Department of Energy, Mechanical Engineering, Mechanics and Control Processes of the Russian Academy of Sciences. Results of a survey of the leading Russian scientists in this field of science, including members of the council, helped to form a preliminary list of journals. The characteristics of these journals and their existing ratings are presented.It is noted that the well-known scientometric indicators do not allow one to evaluate the journals’ development pathways directly. A proposed indicator characterizes the average rate of change in a journal’s impact factor over a given time interval. The values of development indicators have been calculated and analyzed according to the Russian Index of Science Citation (RISC) and Scopus databases for the abovementioned journals included in these databases. The development pathways of some individual journals are considered.The article gives conclusions and recommendations that may be useful to the editorial staff – with a view to promoting their publications and to authors – in choosing a journal for publication.
Kegiatan Kerajinan Atap Rumbia dan Keterbatasan Sumberdaya Lokal Di Kecamatan Sei Bingai Kabupaten Langkat
Authors: Sidauruk Tumiar , Ginting Hennita Br 
Published: October 2024

Penelitian ini bertujuan untuk mengetahui karakteristik kegiatan kerajianan atap rumbia yang dilihat dari aspek : modal, cara pembuatan, pemasaran, transportasi, dan juga penyerapan sumber daya lokal dilihat dari aspek bahan baku dan tenaga kerjaserta kendala-kendala yang menghambat pengembangan usaha kerajinan atap rumbia yang dilakukan di Kecamatan Sei Bingai Kabupaten Langkat.Populasi dalam penelitian ini adalah seluruh pengrajin atap rumbia dengan jumlah 118 pengrajin dan sampel diambil 15% yaitu sebanyak 18 pengrajin yang diambil secara sampling random atau sampel acak. Sedangkan untuk teknik pengumpulan data dilakukan dengan cara menyebarkan angket secara langsung kepada pengrajin, wawancara dan dokumentasi. Teknik analisa data yang digunakan adalah analisa data deskriptif.Hasil yang diperoleh dari penelitian ini menunjukkan bahawa usaha yang digunakan dalam kegiatan kerajinan atap rumbia dimulai dengan modal yang tidak terlalu mahal dan jumlah tenaga kerja yang dominan adalah satu orang saja.Pemasaran dilakukan dengan tiga cara yaitu melalui pesanan, pengumpulan dan eceran. Kegiatan kerajinan atap rumbia mampu menyerap sumber daya alam lokal yaitu bahan baku atap rumbia yang mencukupi dan penyerapan sumber daya manusia lokal sekitar 0.1227% dari total masyarakat usia angkatan kerja.Kata Kunci : Kerajinan Atap Rumbia, Keterbatasan Sumberdaya Lokal
Pembuatan Pupuk Organik kascing dari Berbagai Jenis Limbah Sebagai Alternatif Meningkatkan Life Skill Mahasiswa Jurusan Pendidikan Geografi Universitas Negeri Medan
Authors: Elfayetti Elfayetti , Rohani Rohani 
Published: October 2024

Tujuan penelitian ini adalah untuk mengetahui pertumbuhan berat cacing tanah pada pupuk kascing berdasarkan jenis limbah yang berbeda dan kemampuan cacing memperbaiki beberapa sifat kimia tanah ultisol.Pada penelitian ini digunakan cacing tanah spesies Lumbricus rubeltus, sedangkan media hidup cacing tanah digunakan sekam kayu, kotoran sapi dan kotoran ayam. Untuk perlakuan jenis makanan cacing tanah digunakan kol dan ampas tahu. Penelitian ini dilaksanakan dalam dua tahap. Tahap I adalah inkubasi tanah, tahap II pembudidayaan cacing dengan memelihara cacing tanah selama 3 minggu, yang diberi makanan berbeda sekali dalam tiga hari. Selanjutnya dilakukan analisis unsur hara tanah di laboratoriumHasil penelitian menunjukkan bahwa terdapat pertumbuhan cacing tanah yang dapat dilihat melalui pengamatan bobot cacing tanah serta perubahan sifat kimia tanah pada setiap aspek kimia tanah yang dinilai setelah dilakukan inkubasi pada tanah ultisol.Kata kunci : Pupuk Organik Kascing
Analisis Faktor-Faktor Industri Kecil Mebel Di Kecamatan Sei Rampah Kabupaten Serdang Bedagai
Authors: Simanjuntak Yohana , Lumbantoruan Walbiden 
Published: October 2024

Penelitian ini bertujuan untuk mengetahui : (1) keadaan faktor-faktor industri ditinjau dari modal, bahan baku, tenaga kerja dan pemasaran. (2) pendapatan pengusaha industri kecil mebel di Kecamatan Sei Rampah. Populasi dalam penelitian ini adalah seluruh pengusaha yang bekerja dalam usaha industri mebel di Kecamatan Sei Rampah dengan jumlah 33 pengusaha. Mengingat populasi yang jumlahnya terbatas maka populasi dijadikan sekaligus sebagai sampel. Teknik pengumpulan data yang digunakan yakni komunikasi langsung, kemudian data yang diperoleh dianalisis dengan teknik analisis deskriptif. Hasil penelitian menunjukkan bahwa : (1) modal operasionalrata-rata pengusaha mebel di Kecamatan Sei Rampah adalah Rp.14.166.666, dimana 66,67% bersumber dari modal pribadi dan yang 33,33% merupakan modal pribadi ditambah modal pinjaman. Bahan baku yang digunakan pengusahaadalah kayu durianyang diperoleh dari luar Kecamatan Sei Rampah. Jumlah bahan baku yang digunakan paling banyak 67.848 m3 dan paling sedikit 1.027 m3 dengan rata-rata 19.846 m3. Tenaga kerjayang dipekerjakan berasal dari daerah sekitar industri dengan jumlah 5 - 19 orang. Dilihat dari pemasaran, pada umumnya (81,82%) pengusaha melakukan pemasaran secara tidak langsung (melalui agen) dan daerah pemasarannya mayoritas ke luar daerah sehingga tergolong dalam pemasaran regional. (2)Pendapatanrata-rata pengusaha adalah Rp.11.214.010, dimana nilai ini sudah berada diatas UMK Kabupaten Serdang Bedagai tahun 2011 Bila dilhat dari pendapatan perkapita, maka 96,96% pengusaha berpenghasilan berada diatas UMK atau hanya 3,04% yang berada dibawah UMK.Kata Kunci : Industri Kecil Mebel, Faktor-faktor industri
Analisis Spasial yang Mempengaruhi Perkembangan Kecamatan Ujung Padang Kabupaten Simalungun Tahun 2005-2010
Authors: Lubis Darwin Parlaungan , Sitorus Nurhidayah 
Published: October 2024

Penelitian ini bertujuan untuk mengetahui (1) Faktor fisik geografi yang mempengaruhi perkembangan Kecamatan Ujung Padang Kabupaten Simalungun (2) Faktor nonfisisk yang mempengaruhi perkembangan Kecamatan Ujung Padang Kabupaten Simalungun.Penelitian ini dilaksanakan di Kecamatan Ujung Padang pada tanggal 20 Juni 2012 sampai 20 Juli 2012. Populasi dalam penelitian ini adalah seluruh desa yang ada di Kecamatan Ujung Padang yang terdiri dari 16 desa dan 1 kelurahan. Popoulasi ini sekaligus menjadi sampel (total sampling). Teknik pengumpulan data yang dilakukan dengan observasi dan studi dokumenter. Teknik analisis data yang digunakan dalam penelitian ini adalah teknik analisis deskriptif kualitatif.Hasil penelitian menunjukan bahwa (1) letak Kecamatan Ujung Padang yang strategis menjadikan Kecamatan ini sebagai daerah transit dan produksi kelapa sawit. Jarak yang terjangkau sekitar 25 km ke Kabupaten Batubara, 45 km ke Kabupaten Asahan, dan 25 Km ke Kecamatan Bosar Maligas memberikan kemudahan aksesibilitas bagi penduduk untuk melakukan interaksi. Iklim di kecamatan ini termasuk jenis iklim tropis. Luas penggunaan lahan pertanian sebesar 85%. Topografi kecamatan ini berada pada ketinggian 25 m dpl dengan kondisi datar sampai agak curam 0-40%. Sumberdaya alam diketahui luas panen sekitar 3,485 Ha dengan produksi 19,27 ton untuk padi sawah, dan 14.129,47 Ha dengan jumlah produksi 42.917,53 ton untuk kelapa sawit. (2) tidak terjadi pertumbuhan penduduk selama 5 tahun karena pertumbuhan nya hanya -1,46%. Jenis permukaan jalan berbatu 76%, beraspal 19%, pengerasan 5%, kondisi jalan baik 73%. Sarana pendidikan dan kesehatan yang sudah memadai membuat kecamatan ini mudah untuk berkembang.Kata kunci: Analisis Spasial, Perkebangan Wilayah
Keadaan Sosial Ekonomi Masyarakat Nelayan Di Desa Beringin Kecamatan Beringin Kabupaten Deli Serdang
Authors: Fitria Fitria , Pinem Mbina 
Published: October 2024

Penelitian ini bertujuan untuk mengetahui keadaan sosial ekonomi dan pendidikan anak nelayan di Desa Beringin Kecamatan Beringin Kabupaten Deli Serdang. Populasi dalam penelitian ini adalah seluruh masyarakat nelayan yang bermukim di Desa Beringin dengan jumlah 315 KK. Sampel ditentukan 30% sehingga jumlahnya 95 KK. Teknik pengumpulan data yang digunakan ialah komunikasi tidak langsung. Data yang diperoleh dianalisis dengan teknik analisis deskriptif. Hasil penelitian menunjukkan bahwa pendidikan nelayan masih rendah ( 42,11% ), pendidikan sedang (SMP dan SMA) 57,89%. Pendapatan nelayan juga masih rendah, 97,90% berpendapatan antara Rp 1.000.000 - < Rp 2.000.000 dalam satu tahun. Pendidikan anak nelayan juga rendah 41,05% tidak tamat/ tamat SD, 38,95% SMP, dan 20% SMA.Kata Kunci : nelayan, kemiskinan, dan pendidikan anak
Kebutuhan Ruang Terbuka Hijau di Perkotaan
Authors: Sidauruk Tumiar 
Published: October 2024

Tulisan ini bertujuan untuk menganalisis kebutuhan ruang terbuka hijau di perkotaan berdasarkan rasio jumlah penduduk terhadap kebutuhan ruang terbuka hijau pada kawasan permukiman di perkotaan. Kebutuhan ruang terbuka hijau dengan jumlah penduduk 250 jiwa membutuhkan ruang terbuka hijau dengan tipe Taman Tetangga seluas 250 m2. Kebutuhan ruang terbuka hijau dengan jumlah penduduk 2500 jiwa membutuhkan ruang terbuka hijau dengan tipe Taman Rukun Warga seluas 1250 m2. Kebutuhan ruang terbuka hijau dengan jumlah penduduk 30000 jiwa membutuhkan ruang terbuka hijau dengan tipe Taman Keluraha seluas 9000 m2. Kebutuhan ruang terbuka hijau dengan jumlah penduduk 120000 jiwa membutuhkan ruang terbuka hijau dengan tipe Taman Kecamatan seluas 24000 m2.Kata kunci : ruang terbuka hijau, kebutuhan, kota
Research on Optimization Algorithms for Educational Development of Foreign Language Teachers in Colleges and Universities under the Perspective of Digital Intelligence Empowerment
Authors: Wu Bin 
Published: October 2024

Abstract
The concept of digitalization and intelligence is constantly emerging with the rapid development of information technology, and the in-depth integration of digital intelligence empowerment and teacher education development has garnered significant attention. In this paper, we first examine the stage of teacher development under digital empowerment, tracing the path of teacher education development. We then construct the digital and intelligent TPACK model, as well as the model of teacher education development ability. Subsequently, we adopt a BP neural network to evaluate teacher education development and optimize it using a genetic algorithm. After testing the model, we develop a teacher education development evaluation system based on the GA-BP algorithm, which we then apply and analyze. This paper’s optimized model reduced absolute and relative errors by 418.281 and 3.53%, respectively, compared to the traditional model, and improved the overall goodness of fit by 0.0144. Following the implementation of the system in this paper, the teacher assessment analysis revealed an average teaching ability score of 89.75 for teachers majoring in Japanese foreign language, and 90.26 for those majoring in English foreign language. Notably, the average level of English foreign language majors and their various dimension levels were both higher. Secondly, foreign language teachers with two years of training have an average teaching ability score of 91.32, which is 5.07 points higher than those with only one year of training. It proves the effectiveness of the practical application of this system, and this paper also provides suggestions for the development of teacher education by both teachers and schools, which is of practical significance for the optimization and improvement of foreign language teachers’ education in colleges and universities.
Construction of an Interactive Platform for Piano Teaching in Virtual Reality Environment
Authors: Xu Leiming 
Published: October 2024

Abstract
Under the impact of the wave of new technology, the form of piano teaching is no longer limited to the classroom and paper textbooks, and modern information technology, such as the Internet and virtual reality, is constantly integrated into traditional piano teaching. This paper utilizes the Unity3D engine to create a virtual reality environment for piano teaching interaction, based on VR technology, and to construct an interactive platform for piano teaching. Firstly, based on binocular stereo vision for the three-dimensional reconstruction of the teaching interactive scene, based on the improvement of the LeNet5 network for the user’s head gesture tracking, the constructed virtual scene realizes the real-time movement with the movement of the human head. The test set images using CPU-i76700HQ and GTX960 graphics cards consume 78ms and 25ms per frame, respectively, which meets the real-time system requirements. In this paper, the improved LeNet5 algorithm for head pose estimation without face detection is applicable and has a high detection accuracy of 99.31%, which is better than the algorithms such as Adaboost+Hough, LBF+BP, CNN+Heatmaps, DCNN, and FSA-Net, and is able to satisfy the real-time detection requirements of the virtual scene. The virtual piano teaching interactive platform has an average rating of more than 4 in attractiveness, subjectivity, interactivity, and convenience, but the running speed is only 3.46, so it is necessary to strengthen the technical support and improve the software and hardware level to break through the development bottleneck. Traditional piano teaching is given new vitality and kinetic energy by the interactive platform constructed in this paper for piano teaching in a virtual reality environment.
Research on Strategy and Practice of Enterprise Knowledge Management in Network Environment
Authors: Li Hongyu 
Published: October 2024

Abstract
The continuous progress of society and the emergence of science and technology have made knowledge management more and more the core and focus of enterprises, which provides constant power for the sustainable development and core competitiveness of enterprises. The article designs the enterprise knowledge management system model from five dimensions: knowledge resource layer, knowledge activity layer, information platform layer, protection mechanism layer and knowledge management system, and analyzes the application mode of enterprise knowledge management by combining the knowledge management execution process. Knowledge embedding and iterative alignment are introduced to build the enterprise knowledge entity alignment model, and the ConvE model and LSTM model are combined to integrate the enterprise’s historical knowledge to build the dynamic knowledge reasoning model. The evaluation index system for enterprise knowledge management capability maturity is designed and combined with the entropy weight method and object element topology method for comprehensive evaluation. The MRR value of the enterprise knowledge entity alignment model was 94.05%, the maximum score of entity and relationship prediction Hits@15 of the dynamic knowledge inference model was 88.64%, and the maximum score of the knowledge management capability maturity score of the sample enterprise was 83.26 points. Relying on multiple types of technology for enterprise knowledge blending, and combined with knowledge management evaluation, to help enterprises better formulate knowledge management systems, thus enhancing their competitiveness.
Strategies and Practices of Intelligent Imputation in Data Mining Based on Contact Number Evaluation
Authors: Luo Mingwan 
Published: October 2024

Abstract
This paper proposes the general architecture of a multi-scale classification system based on the intelligent imputation method of multi-scale classification. SVM is used to transform the storage structure model of the object, obtain the trained support vector set with corresponding weights, measure the similarity between two data points based on the Hausdorff distance, realize the construction of a similarity matrix, adopt the idea of mean value, blur the data information, and improve the mechanism of on-scale imputation. The bicubic difference method is used as the theoretical basis of scale-down extrapolation, and the scale-down extrapolation algorithm DAMSC is established. Based on the quaternionic linkage number, the dataset data are preprocessed, and the data eigenvalue weights are calculated at the same time. The multi-scale classification validity index evaluates the model’s accuracy in classification and its performance in both upward and downward scale extrapolation. When the categorized data is 7, the MSCVI metric of the model attains a peak of 0.92254 in the segmentation dataset run results, which is more advantageous than other metrics. In the regression test of the model’s imputation results, the correlation coefficient of bus passengers is 0.99, the adjusted R-square is 0.97043, and the coefficient of the regression equation is 1.042, and the model in this paper is valid and reliable for the imputation of passenger drop-off points.
Research on multi-camera data fusion for improving fire detection accuracy
Authors: Wang Wen , Chen Xianman , Zhou Meng , Xiao Dong , Zhou Yijun 
Published: October 2024

Abstract
With the rapid urbanization in China, the use of various electrical equipment and a large number of flammable materials has led to an increasing trend in the frequency of fires from year to year. In this paper, we start with data fusion to collect fire open data fragments so as to establish a fire detection dataset. A fire monitoring terminal that utilizes multi-feature fusion is created using the data fusion algorithm of the convolutional neural network to improve the main structure of the YOLOv5 fire detection model. The detection effect of the improved model is compared with other network models when combined. In this paper, it is found that the improved YOLOv5 model has better training time and steady state of training effect than the other three groups of models, and its mAP value is improved by 22.1%, 13.6% and 10.13% compared with the other three models, respectively. The average detection accuracy of the improved model for flames and smoke generated with different materials is also higher than that of the other three groups of models. At the same time, the improved model has stronger network classification and checking abilities, and is more accurate in recognizing whether a fire is occurring in the image. In this paper, by improving the YOLOv5 model, it is effectively applied to the fire detection work, realizing the dynamic analysis of real-time detection of flame and smoke and providing an effective detection model for fire monitoring.
Econometric modeling of carbon price impacts on the bidding mechanism between different energy sources in the electricity market
Authors: He Anqi 
Published: October 2024

Abstract
Virtual power plants (VPPs) can aggregate different energy sources into a whole to participate in the electricity market and carbon trading market, and as the scale of VPPs continues to expand, they will also be transformed from the original price takers to price makers. The paper considers VPP as a price setter and suggests a two-tier bidding strategy for the VPP day-ahead electricity market that incorporates the impact of the carbon price. Among them, the upper-layer model aims to maximize the expected revenue of VPP, while the lower-layer model aims to minimize the system clearing cost. The dynamic carbon emission factor is used in the strategy to create a market incentive factor that corrects the offer price of each unit before clearing it again. Finally, the optimal bidding strategy, as well as the operation plan of the VPP, are given through an arithmetic example, and the impact of the uncertainty in the wind farm output forecast in the VPP on the expected return of the VPP is analyzed. The impact of carbon prices on power prices, output, and rates of energy demand change are further explored to provide a basis for the compensation mechanism for ecological protection of carbon values. The arithmetic example shows that VPP can influence the market price through strategic bidding decisions, and after considering the carbon price, the power market clearing price is 4.46 yuan/MWh, and the maximum gain is obtained as 225.54. The consumption rate of new energy units such as WT and PV is increased, the carbon emissions are reduced, and the total gain of VPP is increased. The increase in carbon prices and the offer of traditional generators increase the amount of electricity cleared by renewable energy units, while the increase in carbon quota ratio and the offer of new energy generators increase the average clearing price.