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JOURNAL OF SCIENCE AND SOCIAL RESEARCH
Published by Smart Education
ISSN : 26154307     EISSN : 26153262     DOI : -
Core Subject : Economy, Science, Education, Social,
Computer Science & IT Economics, Econometrics & Finance Education Social Sciences
Journal of Science and Social Research is accepts research works from academicians in their respective expertise of studies. Journal of Science and Social Research is platform to disclose the research abilities and promote quality and excellence of young researchers and experienced thoughts towards Change for Development. The journal releases on February and July.
Arjuna Subject : -
Articles 3,645 Documents
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RANCANG BANGUN MESIN PENGADUK CENDOL OTOMATIS BERBASIS ARDUINO UNO Danu Ramadhan; Ali Hasimi Pane
JOURNAL OF SCIENCE AND SOCIAL RESEARCH Vol. 9 No. 3 (2026): June 2026
Publisher : Smart Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54314/jssr.v9i3.6788

Abstract

Abstract: The traditional process of making cendol is still carried out manually, especially during the stirring stage of the batter throughout the cooking process. Continuous stirring requires considerable effort and a relatively long time. In addition, inconsistent stirring speed can cause the batter to mix unevenly, thereby affecting the quality of the resulting cendol. Therefore, an automatic cendol stirring machine is needed to help improve production efficiency and produce a more homogeneous batter. This study aims to design and develop an Arduino Uno-based automatic cendol stirring machine capable of automating the cendol batter stirring process. The system uses an Arduino Uno as the main controller, a DC motor to drive the stirring mechanism, a temperature sensor to monitor the temperature during the cooking process, and an LCD as the information display. Testing was conducted to evaluate the system's performance in automatically stirring the batter and maintaining the stability of the cooking process. The test results show that the automatic cendol stirring machine performs well according to the design. The system is able to stir the batter continuously at a stable speed, ensuring the batter is mixed evenly while reducing the operator's workload. The use of the Arduino Uno as the control system also simplifies operation and improves the efficiency of the cendol production process. Keywords: Arduino Uno, cendol, automatic stirring machine, DC motor, control system.   Abstrak: Proses pembuatan cendol secara tradisional masih dilakukan secara manual, terutama pada tahap pengadukan adonan selama proses pemasakan. Pengadukan yang dilakukan secara terus-menerus membutuhkan tenaga yang besar dan waktu yang cukup lama. Selain itu, ketidakstabilan kecepatan pengadukan dapat menyebabkan adonan tidak tercampur secara merata, sehingga memengaruhi kualitas cendol yang dihasilkan. Oleh karena itu, diperlukan suatu mesin pengaduk cendol otomatis yang dapat membantu meningkatkan efisiensi proses produksi dan menghasilkan adonan yang lebih homogen. Penelitian ini bertujuan untuk merancang dan membangun mesin pengaduk cendol otomatis berbasis Arduino Uno yang mampu mengotomatisasi proses pengadukan adonan cendol. Sistem menggunakan Arduino Uno sebagai pengendali utama, motor DC sebagai penggerak mekanisme pengaduk, sensor suhu untuk memantau temperatur selama proses pemasakan, serta LCD sebagai media tampilan informasi. Pengujian dilakukan untuk mengetahui kinerja sistem dalam mengaduk adonan secara otomatis dan menjaga kestabilan proses pemasakan. Hasil pengujian menunjukkan bahwa mesin pengaduk cendol otomatis dapat bekerja dengan baik sesuai dengan rancangan. Sistem mampu melakukan pengadukan secara kontinu dengan kecepatan yang stabil sehingga adonan tercampur secara merata dan mengurangi beban kerja operator. Penggunaan Arduino Uno sebagai sistem kendali juga memudahkan pengoperasian dan meningkatkan efisiensi proses produksi cendol. Kata kunci: Arduino Uno, cendol, mesin pengaduk otomatis, motor DC, sistem kendali.
PENGARUH KOMUNIKASI ORGANISASI, KEPUASAN KERJA, DAN PENGEMBANGAN KARIR TERHADAP KINERJA PEGAWAI PADA DINAS PENGENDALIAN PENDUDUK KELUARGA BERENCANA PEMBERDAYAAN PEREMPUAN DAN PERLINDUNGAN ANAK KA-BUPATEN ASAHAN Nurul Hikmatul Alawiyah Siregar; Ade Amalia; Neni Triastuti
JOURNAL OF SCIENCE AND SOCIAL RESEARCH Vol. 9 No. 3 (2026): June 2026
Publisher : Smart Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54314/jssr.v9i3.6789

Abstract

Abstract: This study aims to determine the effect of organizational communication, job satisfaction, and career development on employee performance at the Population Control, Family Planning, Women Empowerment, and Child Protection Office of Asahan Regency. This research employed a quantitative method with multiple linear regression analysis. The sample was determined using saturated sampling, in which the entire population was used as the sample, totaling 47 respondents. The results show that organizational communication, job satisfaction, and career development simultaneously have a positive and significant effect on employee performance, as indicated by Fcount (31.015) > Ftable (2.82) and a significance value of 0.000 < 0.05. Partially, organizational communication has a positive and significant effect on employee performance with tcount (3.040) > ttable (2.016) and a significance value of 0.004 < 0.05. Job satisfaction also has a positive and significant effect with tcount (2.855) > ttable (2.016) and a significance value of 0.007 < 0.05. Furthermore, career development has a positive and significant effect with tcount (2.793) > ttable (2.016) and a significance value of 0.008 < 0.05. The coefficient of determination indicates an Adjusted R Square value of 0.662, meaning that organizational communication, job satisfaction, and career development explain 66.2% of employee performance, while the remaining 33.8% is explained by other variables outside the research model. Keywords: Organizational Communication, Job Satisfaction, Career Development, Employee Performance.   Abstrak: Penelitian ini bertujuan untuk mengetahui pengaruh komunikasi organisasi, kepuasan kerja, dan pengembangan karir terhadap kinerja pegawai pada Dinas Pengendalian Penduduk Keluarga Berencana Pemberdayaan Perempuan dan Perlindungan Anak Kabupaten Asahan. Metode penelitian yang digunakan adalah metode kuantitatif dengan teknik analisis regresi linear berganda. Sampel ditentukan menggunakan metode sampling jenuh, yaitu seluruh populasi dijadikan sampel sebanyak 47 responden. Hasil penelitian menunjukkan bahwa secara simultan komunikasi organisasi, kepuasan kerja, dan pengembangan karir berpengaruh positif dan signifikan terhadap kinerja pegawai, dengan nilai Fhitung (31,015) > Ftabel (2,82) dan nilai signifikansi sebesar 0,000 < 0,05. Secara parsial, komunikasi organisasi berpengaruh positif dan signifikan terhadap kinerja pegawai dengan nilai thitung (3,040) > ttabel (2,016) dan nilai signifikansi sebesar 0,004 < 0,05. Kepuasan kerja juga berpengaruh positif dan signifikan dengan nilai thitung (2,855) > ttabel (2,016) dan nilai signifikansi sebesar 0,007 < 0,05. Demikian pula, pengembangan karir berpengaruh positif dan signifikan dengan nilai thitung (2,793) > ttabel (2,016) dan nilai signifikansi sebesar 0,008 < 0,05. Hasil koefisien determinasi menunjukkan nilai Adjusted R Square sebesar 0,662, artinya komunikasi organisasi, kepuasan kerja, dan pengembangan karir mampu menjelaskan kinerja pegawai sebesar 66,2%, sedangkan 33,8% sisanya dijelaskan oleh variabel lain di luar model penelitian ini. Kata kunci: Komunikasi Organisasi, Kepuasan Kerja, Pengembangan Karir, Kinerja Pegawai.
ANALISIS DAN OPTIMALISASI KUALITAS JARINGAN DENGAN MENGGUNAKAN PARAMETER QUALITY OF SERVICE (QOS) DI REKTORAT UNIVERSITAS TEKNOLOGI SUMBAWA Yunan Wijaya; Yuyun Safitri
JOURNAL OF SCIENCE AND SOCIAL RESEARCH Vol. 9 No. 4 (2026): August 2026 (1)
Publisher : Smart Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54314/jssr.v9i4.6790

Abstract

Abstract: Analyzing the performance of the network at the Rectorate of Universitas Teknologi Sumbawa based on Quality of Service parameters, namely throughput, jitter, delay, and packet loss; identifying the causes of the degradation in network quality; and formulating recommendations for technical improvements and optimization so that the network at the Rectorate of Universitas Teknologi Sumbawa can operate more stably and efficiently.The research methods used are interviews and literature study. The researcher conducted an analysis of network quality at several traffic periods, namely morning, afternoon, and evening. The results obtained based on the TIPHON standard show that in the first test, throughput is categorized as poor according to the TIPHON standard, while packet loss is categorized as very good, delay is categorized as very good, and jitter is also categorized as very good. The measurement results after optimization, adjusted to the TIPHON standard, indicate that throughput is categorized as very good, delay is categorized as very good, and packet loss is also categorized as very good.Factors affecting network quality include the number of active users, bandwidth capacity, traffic management, and network device configuration. This study recommends increasing bandwidth capacity, implementing QoS-based traffic management on network devices, conducting periodic monitoring, and evaluating infrastructure to ensure more optimal internet service quality, especially in supporting technology-based public services. Keyword: Analysis,Optimization,Wireless Local Area Network, Quality of Service, Wireshark   Abstrak:Menganalisis Kinerja jaringan di Rektorat Universitas Teknologi Sumbawa berdasarka parameter quality of service throughput, jitter, delay, dan paccket loss,Mengidentifikasi penyebab penurunan kualitas jaringan ,Menyusun Rekomendasi perbaikan dan optimalisasi kualitas jaringan  teknis agar jaringan di rektorat Universitas Teknologi Sumbawa dapat beroprasi dengan lebih stabil dan lebih efisien. Metode penelitian yang di guanakan yaitu ,wawancara dan study pustka peneliti melakukan analisis kualitas jaringan dengan beberapa trafik waktu tertentu yaitu pagi,siang dan sore.kemudian hasil yang di perolah berdasarkan standar TIPHON pada pengujian pertama yaitu throughputh di katakan buruk menurut stadar TIPHON,paket loss di katakan sangat baik ,delay di katakan sangat baik dan jitter di katakan sangat baik pula berdasarkan standar TIPHON. Hasil pengukuran setelah optimalisasi di sesuaikan dengan standar TPHON yaitu throughput di katakan sangat baik,delay di katakan sangat baik dan packet loss di katakan sangat baik pula.. Faktor yang memengaruhi kualitas jaringan meliputi jumlah pengguna aktif, kapasitas bandwidth, manajemen trafik, dan konfigurasi perangkat jaringan.Penelitian ini merekomendasikan peningkatan kapasitas bandwidth, penerapan manajemen trafik berbasis QoS pada perangkat jaringan, monitoring berkala, dan evaluasi infrastruktur untuk memastikan kualitas layanan internet yang lebih optimal, khususnya dalam mendukung pelayanan publik berbasis teknologi. Kata Kunci : Analisis, Optimalisasi, jaringan, Qos, Wireshark
PENGEMBANGAN MEDIA PEMBELAJARAN INTERAKTIF BERBASIS NEARPOD UNTUK MENINGKATKAN HASIL BELAJAR SISWA PADA MATA PELAJARAN EKONOMI KELAS X SMA NEGERI 1 MEDAN Melvany Agustini Sinurat; Arwansyah Arwansyah
JOURNAL OF SCIENCE AND SOCIAL RESEARCH Vol. 9 No. 4 (2026): August 2026 (1)
Publisher : Smart Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54314/jssr.v9i4.6793

Abstract

Economics learning in high school is still dominated by lecture methods and the use of less interactive media, resulting in low student engagement and learning outcomes. This study aims to develop interactive Nearpod-based learning media on Banking, Non-Bank Financial Industry, and Capital Market materials, and to test its feasibility and effectiveness in improving the learning outcomes of grade X students of SMA Negeri 1 Medan. This study uses the Research and Development (R&D) method with the ADDIE development model which includes the stages of Analysis, Design, Development, Implementation, and Evaluation. The research subjects consisted of validators including material experts, media experts, and learning design experts, as well as grade X students of SMA Negeri 1 Medan. Data collection techniques were carried out through observation, questionnaires, documentation, and learning outcome tests. Data analysis used quantitative descriptive analysis, Independent Sample t-test, and Normalized Gain (N-Gain). The results showed that Nearpod-based learning media obtained a feasibility percentage of 88% based on media expert assessments and student responses of 93% with a very feasible category. The effectiveness test results showed a significant difference in learning outcomes between the experimental and control classes (Sig. = 0.000 < 0.05). The N-Gain value of the experimental class was 0.763, which is in the high category, while the control class was 0.565, which is in the medium category. Thus, the Nearpod-based interactive learning media was declared feasible and effective in improving student learning outcomes in Economics.
IMPLEMENTASI HYBRID ENCRYPTION DENGAN HMAC PADA SISTEM PENGADUAN MASYARAKAT DI DESA SINGARAJAN KABUPATEN SERANG Mahbub Ahwani; Ahmad Munawir; Mochammad Darip
JOURNAL OF SCIENCE AND SOCIAL RESEARCH Vol. 9 No. 4 (2026): August 2026 (1)
Publisher : Smart Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54314/jssr.v9i4.6794

Abstract

Abstract: Advances in information technology are driving the digitization of public services, including public complaint handling at the village level. The complaint process in Singarajan Village is still carried out manually, resulting in ineffective documentation, difficulty in monitoring follow-up actions on complaints, and potential risks to data confidentiality and integrity. This study aims to develop a mobile-based public complaint system capable of improving the effectiveness of complaint management while ensuring data security through a combination of the RSA and AES-256-CBC algorithms and HMAC-SHA256 authentication. The research method used is a mixed-methods approach, with the system development phase following the SDLC Waterfall model, including requirement analysis, design, coding, testing, and maintenance. System testing was conducted using Black Box Testing to evaluate the application’s functionality and the System Usability Scale (SUS) to measure usability. The research results show that all major system functions operate as intended; the hybrid encryption process successfully maintains the confidentiality of complaint data, while HMAC is able to verify data integrity during the communication process. The SUS test results yielded an average score of 61.33, which falls into the “Marginal Acceptable” category with a grade of D; thus, the application is deemed usable, although it still requires improvement in terms of ease of use. Keywords: Complaint System; Hybrid Encryption; RSA; AES-256-CBC; HMAC-SHA256; Waterfall SDLC.   Abstrak: Perkembangan teknologi informasi mendorong digitalisasi layanan publik, termasuk pelayanan pengaduan masyarakat di tingkat desa. Proses pengaduan di Desa Singarajan masih dilakukan secara manual sehingga menyebabkan pendokumentasian kurang efektif, tindak lanjut pengaduan sulit dipantau, serta berpotensi menimbulkan risiko terhadap kerahasiaan dan integritas data. Tujuan penelitian ini ialah mengembangkan sistem pengaduan masyarakat berbasis mobile yang mampu meningkatkan efektivitas pengelolaan pengaduan sekaligus menjamin keamanan data menggunakan kombinasi algoritma RSA-2048, AES-256-CBC, dan autentikasi HMAC-SHA256. Metode penelitian yang digunakan adalah Mixed Method dengan tahapan pengembangan sistem SDLC Waterfall, meliputi requirement analysis, design, coding, testing, dan maintenance. Pengujian sistem dilakukan menggunakan Black Box Testing untuk menguji fungsionalitas aplikasi serta System Usability Scale (SUS) untuk mengukur tingkat usability. Hasil penelitian menunjukkan bahwa seluruh fungsi utama sistem berjalan sesuai dengan kebutuhan, proses hybrid encryption berhasil menjaga kerahasiaan data pengaduan, sedangkan HMAC mampu memverifikasi integritas data selama proses komunikasi. Hasil pengujian SUS memperoleh nilai rata-rata 61,33, yang termasuk kategori Marginal Acceptable dengan grade D, sehingga aplikasi dinilai telah dapat digunakan, meskipun masih memerlukan peningkatan pada aspek kemudahan penggunaan. Kata kunci: Sistem Pengaduan; Hybrid Encryption; RSA-2048; AES-256-CBC; HMAC-SHA256; SDLC Waterfall.
PENGARUH DISIPLIN BELAJAR DAN KEMANDIRIAN BELAJAR TERHADAP PRESTASI BELAJAR EKONOMI SISWA KELAS XI SMAN 13 MEDAN T.A 2025/2026 Vailimlim Simamora; Charles Fransiscus Ambarita
JOURNAL OF SCIENCE AND SOCIAL RESEARCH Vol. 9 No. 4 (2026): August 2026 (1)
Publisher : Smart Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54314/jssr.v9i4.6795

Abstract

This study aims to analyze the effect of learning discipline and learning independence on the economic learning achievement of 11th-grade students at SMAN 13 Medan in the 2025/2026 academic year. The study uses a quantitative approach with an ex-post facto method. The population of the study includes all 11th-grade students consisting of four classes, with a sample of 105 students selected using simple random sampling. Data were collected through questionnaires and analyzed using multiple linear regression with the help of SPSS version 26. The results of the study show the regression equation Y = 60.410 + 0.246X₁ + 0.174X₂ + e. Partially, learning discipline has a positive and significant effect on academic achievement with a t-count value = 5.995 > t-table = 1.659 and significance 0.000 < 0.05. Learning independence also has a positive and significant effect on academic achievement with a t-count value = 4.154 > t-table = 1.659 and significance 0.000 < 0.05. Simultaneously, learning discipline and independence. Simultaneously, study discipline and learning independence have a positive and significant effect on academic achievement, with a calculated F value of 125.185 > table F of 3.09 and a significance of 0.000 < 0.05. These two variables contribute 71.1% to academic achievement, while 28.9% is influenced by other factors outside the study. Thus, study discipline and learning independence positively and significantly affect the economics learning achievement of 11th grade students at SMAN 13 Medan
PEMBUATAN MEDIA PEMBELAJARAN DENGAN BANTUAN APLIKASI OODLÜ Onyx Nifty; Herlina Jasa Putri Harahap
JOURNAL OF SCIENCE AND SOCIAL RESEARCH Vol. 9 No. 4 (2026): August 2026 (1)
Publisher : Smart Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54314/jssr.v9i4.6796

Abstract

The objective of this study is to develop an Oodlü-based learning medium for the Lesen A1 course on the topic “Alltag und Familie”. This study employs a qualitative approach using the development model proposed by Richey and Klein. The model consists of three phases: (1) Planning, (2) Development, and (3) Evaluation. The data source for this study is the textbook Netzwerk neu A1 by Stefanie Dengler et al. (2019). The data consist of reading texts, vocabulary, and exercises related to the topic “Alltag und Familie”, covering the three subtopics: Tagesablauf (Daily Routine), Uhrzeiten (Time), and Familie (Family). The learning medium was developed on the Oodlü platform in the form of interactive exercises using the question types Multi-Word Text, True/False, and Click the Letters to Spell the Word. These exercises were integrated with the games Archery, Bubble Breakout, and Cow Cakes. The results of this study are an Oodlü-based learning medium consisting of a total of 45 interactive questions for the Lesen A1 course on the topic “Alltag und Familie”. The learning materials were validated by a material expert based on five evaluation criteria and received a score of 95.8, which falls into the “very good” category. In addition, the learning medium was validated by a media expert based on nine evaluation criteria and obtained a score of 97.2, which is also categorized as “very good.” Based on these findings, it can be concluded that the developed learning medium is suitable for use as a supplementary instructional medium in German language teaching for the Lesen A1 course on the topic “Alltag und Familie.”
TANTANGAN DAN SOLUSI PR DALAM MENINGKATKAN KINERJA ORGANISASI: ANALISIS KRISIS KOMUNIKASI PADA PDAM TIRTANADI MEDAN, SUMATERA UTARA Agnita Yolanda; Neni Triastuti; Zubaidah Hanum
JOURNAL OF SCIENCE AND SOCIAL RESEARCH Vol. 9 No. 3 (2026): June 2026
Publisher : Smart Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54314/jssr.v9i3.6800

Abstract

Abstract: This article explores the communication crisis challenges faced by PDAM Tirtanadi and the role of Public Relations (PR) in managing these issues to improve organizational performance. This study employs a qualitative approach with in-depth interviews with the company staff, as the primary data collection method. The findings reveal that the main challenges include a lack of transparency and consistency in delivering information to the public. To address these issues, PDAM Tirtanadi has developed various strategies, such as strengthening internal communication, fostering good relationships with the media through the Forum Wartawan Tirtanadi (Forwadi), and utilizing digital technology for information dissemination. The study concludes by highlighting the importance of crisis communication training for PR teams, strengthening internal communication systems, and ensuring transparency in public interactions to maintain public trust and enhance the organization's reputation. Keywords: Public Relations, Crisis Communication, Organization Performance Abstrak: Penelitian ini bertujuan untuk mengetahui komunikasi krisis yang dihadapi oleh PDAM Tirtanadi dan menganalisis peran Public Relations (PR) dalam mengelola situasi tersebut untuk meningkatkan kinerja organisasi. Penelitian ini menggunakan pendekatan kualitatif dengan wawancara mendalam dengan pihak PT sebagai metode pengumpulan data utama. Hasil penelitian menunjukkan bahwa tantangan utama dalam menghadapi krisis komunikasi adalah kurangnya transparansi dan konsistensi dalam penyampaian informasi kepada masyarakat. Untuk mengatasi hal ini, PDAM Tirtanadi telah mengembangkan berbagai strategi, seperti memperkuat komunikasi internal, menjalin hubungan baik dengan media melalui Forum Wartawan Tirtanadi (Forwadi), dan memanfaatkan teknologi digital dalam menyampaikan informasi. Kesimpulan dari penelitian ini menunjukkan bahwa pentingnya pelatihan komunikasi krisis bagi tim PR, penguatan sistem komunikasi internal, serta transparansi dalam berinteraksi dengan masyarakat untuk menjaga kepercayaan publik dan meningkatkan reputasi organisasi. Kata kunci: Public Relations, Krisis Komunikasi, Kinerja Organisasi
PENGEMBANGAN MEDIA PEMBELAJARAN MATEMATIKA ADAPTIF BERBASIS MACHINE LEARNING UNTUK MENINGKATKAN HASIL BELAJAR SISWA Mustika Fitri Larasati Sibuea; Muhammad Ardiansyah Sembiring; Hokkop Efendi Hasibuan
JOURNAL OF SCIENCE AND SOCIAL RESEARCH Vol. 9 No. 3 (2026): June 2026
Publisher : Smart Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54314/jssr.v9i3.6801

Abstract

Abstract: This study aims to develop an adaptive mathematics learning media based on machine learning and to examine its feasibility and effectiveness in improving student learning outcomes. The media was developed using the 4D research and development model (define, design, develop, disseminate). A Random Forest algorithm was employed to classify students' ability into three categories (low, medium, high) based on their exercise history, allowing the media to automatically adjust the difficulty level of the exercises. The trial subjects were eighth-grade junior high school students of Tamansiswa Sukadamai. Data were collected through a needs analysis questionnaire, expert validation sheets, a System Usability Scale (SUS) questionnaire, and pretest-posttest learning outcome tests. The results indicate that the media is feasible, practical, and effective in improving student learning outcomes, and that the developed model shows good classification accuracy. Keywords: adaptive learning media, machine learning, learning outcomes, mathematics, Random Forest   Abstrak: Penelitian ini bertujuan untuk mengembangkan media pembelajaran matematika adaptif berbasis machine learning serta menguji kelayakan dan efektivitasnya dalam meningkatkan hasil belajar siswa. Media dikembangkan menggunakan model penelitian dan pengembangan 4D (define, design, develop, disseminate). Algoritma Random Forest digunakan untuk mengklasifikasikan kemampuan siswa ke dalam tiga kategori (rendah, sedang, tinggi) berdasarkan riwayat pengerjaan soal, sehingga media dapat menyesuaikan tingkat kesulitan latihan secara otomatis. Subjek uji coba penelitian adalah siswa kelas VIII SMP Tamansiswa Sukadamai. Data dikumpulkan melalui angket analisis kebutuhan, lembar validasi ahli, angket System Usability Scale (SUS), serta tes hasil belajar (pretest dan posttest). Hasil penelitian menunjukkan bahwa media dinyatakan layak, praktis, dan efektif meningkatkan hasil belajar siswa, serta model yang dikembangkan menunjukkan akurasi klasifikasi yang baik. Kata kunci: media pembelajaran adaptif, machine learning, hasil belajar, matematika, Random Forest
RANCANG BANGUN MESIN PENCACAH RUMPUT PAKAN TERNAK Widyarini Widyarini; Sandi Yudha B Zaki; Tuti Alawiyah; Catur A.N.
JOURNAL OF SCIENCE AND SOCIAL RESEARCH Vol. 9 No. 4 (2026): August 2026 (1)
Publisher : Smart Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54314/jssr.v9i4.6802

Abstract

Abstract: Meeting the forage requirements of ruminant livestock demands an effective grass‑chopping process to ensure that feed is easier to consume, enhances digestive efficiency, and reduces the daily workload of farmers. In practice, however, grass chopping is still frequently performed manually, resulting in inconsistent particle sizes, high physical exertion, and significant delays in feed preparation. This study aims to design and develop a grass‑chopping machine that operates efficiently, safely, and is easy for small‑ to medium‑scale farmers to use. The design process involved identifying user needs, developing mechanical components, performing structural strength calculations, fabricating the frame and chopping chamber, and conducting machine performance tests. The results indicate that the developed machine can achieve a chopping capacity of 81 kg/hour at a blade rotational speed of 18,000 rpm, producing more uniform feed particles than manual methods. The incorporation of six straight blades on the rotating shaft effectively enhances the homogeneity of the chopped output while maintaining stable operational performance. Overall, the grass‑chopping machine designed in this study has proven capable of improving work efficiency, reducing the physical burden on farmers, and producing feed sizes better suited to livestock nutritional needs. Keywords: Grass Chopping, Livestock Feed, Design and Development   Abstrak: Pemenuhan kebutuhan pakan hijauan bagi ternak ruminansia memerlukan proses pencacahan rumput yang efektif agar pakan lebih mudah dikonsumsi, meningkatkan efisiensi pencernaan, serta menghemat waktu kerja peternak. Pada praktiknya, pencacahan rumput masih banyak dilakukan secara manual sehingga menghasilkan potongan yang tidak seragam, memerlukan tenaga besar, dan memperlambat proses penyediaan pakan harian. Penelitian ini bertujuan merancang dan membangun sebuah mesin pencacah rumput pakan ternak yang mampu bekerja secara efisien, aman, dan mudah dioperasikan oleh peternak skala kecil hingga menengah. Perancangan dilakukan melalui tahap identifikasi kebutuhan, desain komponen mekanis, perhitungan kekuatan struktur, pembuatan rangka dan ruang pencacah, serta pengujian performa mesin. Hasil pengujian menunjukkan bahwa mesin yang dikembangkan mampu mencapai kapasitas pencacahan 81 kg/jam pada putaran pisau 18.000 rpm, dengan kualitas cacahan yang lebih seragam dibandingkan metode manual. Penggunaan enam pisau lurus pada poros berputar terbukti meningkatkan homogenitas hasil potongan serta menjaga stabilitas kerja mesin. Dengan demikian, mesin pencacah rumput yang dirancang pada penelitian ini terbukti mampu meningkatkan efisiensi waktu kerja, mengurangi beban fisik peternak, serta menyediakan potongan pakan yang lebih sesuai kebutuhan ternak. Kata Kunci: Pencacah Rumput, Pakan Ternak, Rancang Bangun

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