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All Journal Angkasa: Jurnal Ilmiah Bidang Teknologi Panthera : Jurnal Ilmiah Pendidikan Sains dan Terapan Jurnal Pengabdian West Science Scientica: Jurnal Ilmiah Sains dan Teknologi Information Technology and Systems
Ramadhani, Risky
Unknown Affiliation
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Immunology & microbiology Mathematics Physics Public Health Social Sciences Other

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DAMPAK SAMPAH DI ALIRAN SUNGAI SIAK PELABUHAN SUNGAI DUKU PEKANBARU Fitri, Anisa; Nazily, Haqqy An; Ramadhani, Risky; Indrianti, Rita; Adinda, Yus Tri; Fatmawati, Fatmawati
Scientica: Jurnal Ilmiah Sains dan Teknologi Vol. 3 No. 1 (2024): Scientica: Jurnal Ilmiah Sains dan Teknologi
Publisher : Komunitas Menulis dan Meneliti (Kolibi)

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Abstract

Sungai merupakan sumber air penting untuk menopang kehidupan manusia. Tujuan dari penelitian ini adalah untuk menganalisis dampak sampah terhadap wilayah aliran Sungai Siak, khususnya di wilayah Sungai Duku, Pekanbaru. Sungai Siak adalah salah satu sumber daya alam terpenting bagi masyarakat umum, tetapi setelah beberapa tahun ini, kondisi kualitas air memburuk karena pencemaran air dan kondisi wilayah sekitar. Metode penelitian yang digunakan antara lain survei yang dilakukan observasi lapangan, pengambilan sampel air, Wawancara narahubung dan diskusi kelompok terfokus dengan warga setempat. Hasil penelitian menunjukkan bahwa tingkat pencemaran air yang disebabkan oleh sampah dan kesadaran masyarakat telah mencapai titik kritis yang merugikan kualitas air dan kesehatan ekosistem. Kesadaran masyarakat akan pentingnya mengurangi sampah di aliran sungai siak yang belum ada meskipun pemerintah telah melakukan upaya untuk mengatasi situasi tersebut. Rekomendasi dari penelitian ini berfokus pada peningkatan edukasi menjaga lingkungan, penguatan regulasi pembuangan sampah, dan kerjasama masyakarat.
Designing a Web-Based Archive Management Application Using the Laravel Framework: A Case Study on a Recreational Park Ramadhani, Risky
Information Technology and Systems Vol. 2 No. 1 (2024): November 2024
Publisher : SAN Scientific

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58777/its.v2i1.300

Abstract

Effective archive management is one of the main needs in supporting organizational operations, including in recreational parks that have a high volume of administrative documents. This research aims to design and implement a web-based archive management application using the Laravel framework to improve efficiency in archive storage, management, and search. The research approach involves the stages of needs analysis, system design, application development, and trials on a real work environment in a recreational park. The results of the application design show that the use of Laravel as the main framework allows for the development of a responsive, secure, and easy-to-use system. The main features implemented include digital archive storage, grouping by category, keyword-based search, and role-based user access management. Testing using the black-box testing method shows that the system functions according to the designed specifications. Based on user feedback, this application is able to reduce the time of searching archives by up to 45% compared to the previous manual method. In conclusion, this Laravel-based archive management application provides a significant solution to improve the efficiency and security of document management in amusement parks. Further research is suggested to integrate the system with cloud computing technology to support more flexible access and higher scalability.
Pengembangan Media Pembelajaran untuk Meningkatkan Capaian Pembelajaran pada Mata Pelajaran Teknik Dasar Pengelasan Harsandi, Zaidan Priya; Huda, Khoirul; Kriswanto, Kriswanto; Darsono, Febri Budi; Nuryanta, Muhammad Irfan; Ramadhani, Risky
Panthera : Jurnal Ilmiah Pendidikan Sains dan Terapan Vol. 5 No. 3 (2025): July
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/panthera.v5i3.492

Abstract

This study aims to develop and evaluate the feasibility and effectiveness of Android-based learning media in improving students' Learning Outcomes (CP) in Basic Welding Techniques, especially in Gas Metal Arc Welding (GMAW) material at SMKN 3 Salatiga. A quantitative research approach was used with the ADDIE development model and an experimental method using the Pretest-Posttest Control Group Design. The research subjects consisted of two classes, an experimental class and a control class, each consisting of 35 students. Validation by content experts showed a feasibility score of 82%, categorized as very feasible, while validation by media experts produced a score of 74%, categorized as feasible. The results of the normality and homogeneity tests showed that the data were normally distributed and homogeneous. An independent t-test showed a significant difference between the experimental and control groups (p < 0.05) with an average increase of 22.686. In addition, the average N-Gain score in the experimental class was 0.5171 (moderate category), compared to only 0.0199 (low category) in the control class. These findings demonstrate that Android-based learning media has proven effective, feasible, and can be used as an innovative alternative in engineering learning in Vocational High Schools (SMK). This media not only improves student learning outcomes but also supports a more interactive learning process that aligns with current developments in educational technology. This media also has practical benefits in helping teachers deliver material more efficiently and engagingly, and has the potential to support the development of a vocational curriculum that is more adaptive to the needs of the workplace.
Karakteristik Variasi Lateral Tilt Angle pada Friction Stir Welding Material High Density Polyethylene Terhadap Kekuatan Tarik dan Bending Azara, Salsa Bila; Ramadhani, Risky; Budi Darsono, Febri Budi; Bahatmaka, Aldias; Kriswanto, Kriswanto; Firmansyah, Hendrix Noviyanto
Angkasa: Jurnal Ilmiah Bidang Teknologi Vol 17, No 2 (2025)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/angkasa.v17i2.3004

Abstract

Friction Stir Welding (FSW) is a solid-state joining method suitable for thermoplastics like HDPE, which has lighter and more flexible properties. This study aims to examine the tensile and bending strength of HDPE joints influenced by parameters such as TRS 930 rpm, a feed rate of 20mm/min, and variations in the Lateral Tilt Angle (LTA) of 0°, 0.5°, 1°, and 1.5°, where the tool's position is sideways relative to the tool's movement direction as the main variable. Resulting in maximum tensile strength (UTS) values of 3.15 MPa, 16.0 MPa, 16.9 MPa, and 8.59 MPa. LTA 1° produced the highest UTS, while LTA 0° produced the lowest UTS because the heat input was not sufficient to perfectly bond the welding material. The bending strength values produced were 4.25 MPa, 14.3 MPa, 4.17 MPa, and 28.8 MPa. The highest stress is found at a 1.5° variation and the lowest at a 1° variation, due to uneven heat distribution during the FSW process. Therefore, choosing the right TLA during the FSW process is key to achieving HDPE joints with good mechanical strength
Servis Gratis Sepeda Motor di Halaman Masjid Ulul Al Bab UNNES Tahun 2024 Iskandar, Ranu; Al’Misbah, Abdillah Habib; Laksono, Bakti; Mahasurya, Muhammad Saddam; Susanto, Nugroho Fajar; Maturidi, Rusman; Fadlu, Vio; Naryanto, Rizqi Fitri; Widodo, Rahmat Doni; Nabil, M. Aufa; Dhuha, Wahyu Nur; Nurfa'iq, Hanif; Mikadilana, M. Sadewa; Ikhsan, Aam Maulana; Pratama, Sholikhul Yudha; Faiz, M. Agung Nur; Syafiulloh, Muhammad; Sidiq, Chusen Ismail; Nuril, Miftakhun; Mahardika, Fiqih Abi; Ramadhani, Risky; Priyasigit, Tri Wahyu
Jurnal Pengabdian West Science Vol 3 No 06 (2024): Jurnal Pengabdian West Science
Publisher : Westscience Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58812/jpws.v3i06.1180

Abstract

Mahasiswa S1 Pendidikan Teknik Otomotif, Pendidikan Teknik Mesin, dan Teknik Mesin memiliki minat dan bakat dalam servis sepeda motor. Tujuan pengabdian ini adalah untuk melakukan servis sepeda motor mahasiswa dan masyarakat sekitar UNNES. Metode pengabdian ini yaitu persiapan, pelaksanaan, dan evaluasi. Tahap persiapan dimulai dengan pendataan mahasiswa yang ingin menjadi teknisi, kemudian pelatihan teknisi, dan penyiapan alat dan bahan di lokasi servis sepeda motor. Tahap pelaksanaan dilakukan berupa praktik langsung servis berkala. Tahap evaluasi dilakukan untuk mengetahui apakah ada keluhan dari customer setelah sepeda motornya di servis. Hasil pengabdian menunjukan bahwa servis gratis sepeda motor yang diadakan di Halaman Masjid Ulul Al Bab tanggal 7-8 Mei 2024 berjalan lancar. Total ada 264 unit sepeda motor yang diservis. Customer tidak mengeluhkan sepeda motornya setelah diservis yang artinya customer merasa puas.
Co-Authors Adinda, Yus Tri Aldias Bahatmaka Al’Misbah, Abdillah Habib Azara, Salsa Bila Budi Darsono, Febri Budi Darsono, Febri Budi Dhuha, Wahyu Nur Fadlu, Vio Faiz, M. Agung Nur Fatmawati Fatmawati Fitri, Anisa Harsandi, Zaidan Priya Hendrix Noviyanto Firmansyah, Hendrix Noviyanto Ikhsan, Aam Maulana Indrianti, Rita Iskandar, Ranu Khoirul Huda Kriswanto Kriswanto, Kriswanto Laksono, Bakti Mahardika, Fiqih Abi Mahasurya, Muhammad Saddam Maturidi, Rusman Mikadilana, M. Sadewa Nabil, M. Aufa Nazily, Haqqy An Nurfa'iq, Hanif Nuril, Miftakhun Nuryanta, Muhammad Irfan Pratama, Sholikhul Yudha Priyasigit, Tri Wahyu Rizqi Fitri Naryanto Sidiq, Chusen Ismail Susanto, Nugroho Fajar Syafiulloh, Muhammad