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All Journal JURNAL PENDIDIKAN TAMBUSAI Bisnis Net : Jurnal Ekonomi dan Bisnis LEARNING : Jurnal Inovasi Penelitian Pendidikan dan Pembelajaran Jornal Of Tourism Sciences (Toursci) Journal Of Engineering Sciences (Improsci) MILANG Journal of Mathematics and Its Applications
Andri Hermawan, Andri
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Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mathematics Mechanical Engineering Social Sciences Other

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Analysis Of Time Motion Study Comparison For Coconut Husk Processing With Coconut Husk Crushing Machine Assistive Tool Hermawan, Andri; Trisolvena, Muhammad Nana; Nurudin, Arif
Jurnal Improsci Vol 2 No 4 (2025): Vol 2 No 4 February 2025
Publisher : Ann Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62885/improsci.v2i4.615

Abstract

Background. Entrepreneurs utilize abundant raw materials by making coconut husk, which is the main ingredient in making coconut husk brooms. However, many still use conventional methods to process it, such as pounding it until it becomes fiber. Aim. To be carried out effectively, it is deemed necessary to have technological assistance, such as the Coconut Husk Shredding Machine. Methods. However, to ensure that the aid has improved the effectiveness of the coconut husk shredding process, it is necessary to analyze and compare the time motion study between the two methods. By comparing the Standard Time between the two methods, Result. We can determine the extent of the difference, allowing us to quickly estimate the amount of product produced from coconut husk shredding within a specific time frame or how long it takes to process the available amount of coconut husk. Conclusion. The research and time motion study analysis results in an activity of shredding coconut husks using conventional methods and machines, which aligns with the hypothesis that shredding coconut husks using machines is 2.91 minutes faster than traditional methods. Implication. This work time measurement recommendation can be used as a standard time measurement in shredding coconut husks using conventional and machine methods.
Validation of Sustainable Tourism Supply Chain Management Framework Model With SEM-AMOS Application Hermawan, Andri; Kartini, Nuri; Muhamad, Muhamad
Jurnal Toursci Vol 2 No 4 (2025): Vol 2 No 4 February 2025
Publisher : Ann Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62885/toursci.v2i4.624

Abstract

Background. The management of the tourism supply chain that exists today, when viewed from the reality on the ground, has occurred but is done traditionally, or in other words, it is not managed correctly, so the ultimate goal of supply chain management is not achieved. Aim. The author has formulated a Sustainable Tourism Framework Model based on FGDs and surveys of tourism supply chain actors. Methods. The authors used this study's research methodology: 1. Determine the title and research objectives; 2. Create an overview of the research in an abstract narrative, 3. Conduct a Literature Review on several topics related to the keywords in the abstract; 4. Research stages should be made in which the methodology is determined in detail beforehand; 5. Conduct FGD to discover the Decision Making System Model in implementing TSCM.6. Make SEM Model Design Forms.7. Entering data into the AMOS application. 8. Re-test the results of the AMOS application to optimal results. 9. Optimal Reconstruction of the SEM Model Design. 10. Arranging questions to be carried out in Survey, 10. Collecting survey data. 11. Enter data from survey results. 12. Report on survey results based on SEM model tests through the AMOS application.Result. However, the Framework Model has not yet been accurately validated. After being validated through the SEM-AMOS application, the proposed Framework Model was changed to the Sustainable Tourism Supply Chain Management Framework Model.Conclusion. Developing the STSCM application design in Indonesia should significantly improve the tourism sector's economy. For this reason, we recommend that this be followed up on the STSCM Application Development in Indonesia.Implementation. This research will be beneficial for the Indonesian government, entrepreneurs in the tourism sector, and the tourism industry in general, especially in the tourism sector
Study on Supply Chain Rearrangement to Improve Supply Chain Performance of Sambal Sauce in Company X Case Study using the Enterprise Architecture Design method that utilizes Industrial Revolution 4.0 Technology based on Hybrid Technology Hermawan, Andri; Idris, Mohd Razif; Binti Mustaffa Bakry, Faridah
Jurnal Improsci Vol 2 No 2 (2024): Vol 2 No 2 October 2024
Publisher : Ann Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62885/improsci.v2i2.493

Abstract

Company X is a large enough producer of Sambal Sauce to supply Meatball traders in Indonesia. Many problems in this supply chain include the occurrence of unhealthy competition between internal networks, both between agents and other networks that intersect between supply regions, market prices are not uniform, the availability of field products is not maintained, the uncertainty of delivery from the previous supply from the Supply Chain, high Debts and Receivables from Distributors, the certainty of product delivery to the Supply Chain from Producers, The certainty and stability of the delivery of Sambal Sauce Raw Materials to the Factory, unstable quality of raw materials, and many other problems. Of course, this needs to be fixed immediately, considering that it will be a turning point for product returns if this problem continues. The following is a deeper study of what and why this happens, how to solve the problem, and concrete efforts to solve the problem analytically using the Enterprise Architecture Design method by utilizing Hybrid Technology-based Industrial Revolution 4.0 Technology.
ANALISIS RETURN SAHAM PERUSAHAAN MANUFAKTUR DI BURSA EFEK INDONESIA (Studi Kasus Perusahaan Manufaktur Tahun 2020 - 2022) Zaelani, Abd Kadir; Hermawan, Andri; Siahaan, Eva Delia Putri; Dwi Cahyani, Gusti Ayu Desy; Taufik, Nawir One; Alfaris, Salman
Bisnis-Net Vol 8, No 1: JUNI 2025
Publisher : Universitas Dharmawangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46576/bn.v8i1.5763

Abstract

Tujuan dari penelitian ini adalah untuk menganalisis Return saham perusahaan manufaktur yang terdaftar di Bursa Efek Indonesia. Dalam penelitian ini, faktor-faktor likuiditas (CR), Profitabilitas (ROA), dan leverage (DAR) dibandingkan dengan Return saham perusahaan manufaktur. Perusahaan manufkatur yang terdaftar di BEI pada tahun 2019 sebagai populasi penelitian. Hasil pengujian regresi yang dilakukan pada 145 perusahaan manufaktur menunjukkan bahwa rasio keuangan CR dan DAR tidak berpengaruh terhadap Return, sedangkan rasio keuangan ROA berpengaruh terhadap Return. Studi ini menunjukkan bahwa rasio-rasio mempengaruhi Return saham perusahaan manufaktur secara simultan.
ANALISIS SUPPORT VECTOR REGRESSION DENGAN ALGORITMA GRID SEARCH UNTUK MEMPREDIKSI HARGA SAHAM Hermawan, Andri; Mangku, I Wayan; Ardana, N. K. Kutha; Sumarno, Hadi
MILANG Journal of Mathematics and Its Applications Vol. 18 No. 1 (2022): MILANG Journal of Mathematics and Its Applications
Publisher : School of Data Science, Mathematics and Informatics, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/milang.18.1.41-60

Abstract

Pada artikel ini dikaji suatu metode yang dapat digunakan untuk meramalkan harga saham. Tujuan dari penelitian ini adalah memperkenalkan metode Support Vector Regression dengan Algoritma Grid Search untuk memprediksi harga saham INDF dan MYOR serta melakukan peramalan satu periode ke depan pada kedua perusahaan tersebut. Hasil kajian menghasilkan model prediksi terbaik untuk data saham INDF dengan nilai MAPE dan pada data testing berturut-turut sebesar 5.570% dan 79.9%, sedangkan untuk data saham MYOR diperoleh nilai MAPE dan pada data testing berturut-turut sebesar 2.954% dan 96%. Hasil penelitian juga menunjukkan prediksi harga saham INDF dan MYOR untuk satu periode selanjutnya (31 Desember 2021) berturut-turut sebesar Rp 6326.88/lembar dan Rp 2039.31/lembar.
Penerapan Model Problem Based Learning untuk Meningkatkan Keaktifan Belajar Siswa di Kelas 2 Sekolah Dasar Hermawan, Andri; Artharina, Fillia Prima; Suyatmi, Suyatmi
Jurnal Pendidikan Tambusai Vol. 8 No. 2 (2024)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Kurangnya keaktifan belajar siswa dalam kegiatan pembelajaran yang melatarbelakangi penelitian ini, hal ini dikarenakan masih kurangnya keterlibatan aktif siswa didalam kegiatan belajar mengajar. Penelitian ini bertujuan agar keaktifan belajar siswa menjadi lebih baik lagi. Model pembelajaran Problem Basen Learning menjadi mode yang digunakan dan jenis penelitian tindakan kelas dengan 2 periode(periode). Kelas 2A SD Supriyadi 02 Semarang sebanyak 28 siswa menjadi subjek penelitian ini. Hasil penelitian memperlihatkan adanya peningkatan rata-rata keaktifan belajar siswa, mulai dari pra periode 46,58%, peridoe I 60,56% dan di periode II menjadi 81,79%. Hasil yang dapat disimpulkan keaktifan belajar siswa kelas 2A dapat meningkat dengan model pembelajaran Problem Based Learning di pelajaran Bahasa Indonesia di SD Supriyadi 02 Semarang pada tahun ajaran 2023/2024.
PENGARUH MODEL PROBLEM-BASED LEARNING DI LUAR KELAS TERHADAP KETERAMPILAN ARGUMENTASI ILMIAH SISWA SEKOLAH DASAR DALAM PEMBELAJARAN IPAS Hermawan, Andri
LEARNING : Jurnal Inovasi Penelitian Pendidikan dan Pembelajaran Vol. 5 No. 4 (2025)
Publisher : Pusat Pengembangan Pendidikan dan Penelitian Indonesia (P4I)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51878/learning.v5i4.7519

Abstract

This research is motivated by the challenges of 21st-century education to develop higher-order thinking skills such as scientific argumentation, whose implementation in elementary schools is still suboptimal due to classroom-centered learning. The main focus of this study is to bridge this gap by examining the effect of the Problem-Based Learning (PBL) model implemented outside the classroom on the scientific argumentation skills of sixth-grade students at SD Negeri 2 Besuki. This quasi-experimental study with a pretest-posttest control group design involved grade VI-A (the experimental group) learning with PBL outside the classroom and grade VI-B (the control group) learning with conventional learning. Data were collected through a scientific argumentation essay test and analyzed using an independent t-test. The results showed that the implementation of the PBL model outside the classroom was significantly superior. The experimental group experienced a significantly higher average score increase (from 58.44 to 82.11) compared to the control group (from 57.88 to 64.23), with statistical significance (p=0.001). It was concluded that the synergy between the PBL framework, which encourages argumentation, and the out-of-class context that provides authentic evidence, proved highly effective in developing students' scientific argumentation skills holistically. ABSTRAKPenelitian ini dilatarbelakangi oleh tantangan pendidikan abad ke-21 untuk mengembangkan keterampilan berpikir tingkat tinggi seperti argumentasi ilmiah, yang implementasinya di sekolah dasar masih belum optimal karena pembelajaran yang terpusat di dalam kelas. Fokus utama penelitian ini adalah untuk menjembatani kesenjangan tersebut dengan menguji pengaruh model Problem-Based Learning (PBL) yang dilaksanakan di luar kelas terhadap keterampilan argumentasi ilmiah siswa kelas VI SD Negeri 2 Besuki. Penelitian kuasi-eksperimental dengan desain pretest-posttest control group ini melibatkan kelas VI-A (kelompok eksperimen) yang belajar dengan PBL di luar kelas dan kelas VI-B (kelompok kontrol) dengan pembelajaran konvensional. Data dikumpulkan melalui tes esai argumentasi ilmiah dan dianalisis menggunakan uji-t independen. Hasil penelitian menunjukkan bahwa penerapan model PBL di luar kelas secara signifikan lebih unggul. Kelompok eksperimen mengalami peningkatan skor rata-rata yang jauh lebih tinggi (dari 58,44 menjadi 82,11) dibandingkan kelompok kontrol (dari 57,88 menjadi 64,23), dengan signifikansi statistik (p=0,001). Disimpulkan bahwa sinergi antara kerangka PBL yang mendorong kebutuhan berargumen dan konteks luar kelas yang menyediakan bukti otentik terbukti sangat efektif untuk mengembangkan keterampilan argumentasi ilmiah siswa secara holistik.
Co-Authors Ardana, N. K. Kutha Arif Nurudin Artharina, Fillia Prima Binti Mustaffa Bakry, Faridah Dwi Cahyani, Gusti Ayu Desy Hadi Sumarno I Wayan Mangku Idris, Mohd Razif Kartini, Nuri Muhamad Muhamad Salman Alfaris, Salman Siahaan, Eva Delia Putri Suyatmi Suyatmi Taufik, Nawir One Trisolvena, Muhammad Nana Zaelani, Abd Kadir