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All Journal SAINSMAT Jurnal Sains dan Teknologi Jurnal Pamator : Jurnal Ilmiah Universitas Trunojoyo Madura IJIET (International Journal of Indonesian Education and Teaching) AKSIOLOGIYA : Jurnal Pengabdian Kepada Masyarakat Desimal: Jurnal Matematika Abdimas Umtas : Jurnal Pengabdian kepada Masyarakat Abdimas Universal Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Community Empowerment Indonesian Journal of Engagement, Community Services, Empowerment and Development (IJECSED) Jurnal Ilmiah Teknik Mesin Poros Jurnal Penelitian dan Karya Ilmiah Lembaga Penelitian Universitas Trisakti JME (Journal of Mathematics Education) Kocenin Jurnal Pengabdian Kepada Masyarakat Riemann : Research of Mathematics and Mathematics Education Gammath : Jurnal Ilmiah Program Studi Pendidikan Matematika SAINSMAT: Jurnal Ilmiah Ilmu Pengetahuan Alam
Larasati Rizky Putri
Universitas Trisakti, Jakarta, Indonesia
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Leachate Distribution and Assessment of Groundwater Quality: A Case Study of Rawa Kucing Landfill, Tangerang Utami, Ika Wahyu; Najih, Muhammad; Putri, Larasati Rizky; Suudi, Bambang Cholis
Jurnal Pamator : Jurnal Ilmiah Universitas Trunojoyo Vol 17, No 1: January - March 2024
Publisher : LPPM Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/pamator.v17i1.22650

Abstract

The self-potential (SP) method investigated leachate distribution near Rawa Kucing. Rawa Kucing is the main landfill in Tangerang that burned almost the entire area. A total of 78 SP data points were scattered throughout the study area. The SP values range from -20 to 16 millivolts, dominated by negative values attributed to electrokinetic processes. The results suggest that a highly conductive zone in the study area may have been caused by high contamination from leachate. The possible direction of leachate flow is towards the Cisadane stream, located west of the landfill. On the other hand, a quantitative interpretation of SP was conducted for two profiles, AA’ and BB’. The result shows that the vertical spreading of leachate was found at a depth of h 6,59 and 3,53 meters and H 8,10 and 4,34 meters for AA' and BB', respectively, with an angle of 28,810. Additionally, groundwater samples were collected from four sites near the landfill to assess groundwater quality using physical and chemical analysis. Based on the Indonesian Ministry of Health Regulation, most parameters indicated low contamination. Statistical analysis revealed that the groundwater near the landfill was worthy of consumption. Based on the results, rainfall during the study significantly reduced the concentrations of contaminants in leachate due to dilution.
A Introduction to the role of civil engineering in infrastructure development for students of SMAN 3 Jakarta Liana Herlina; Endah Kurniyaningrum; Aksan Kawanda; Larasati Rizky Putri; Imas Widhah Misshuari
Community Empowerment Vol 10 No 1 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ce.12159

Abstract

Infrastructure development in Indonesia requires many civil engineering graduates, who play an important role in developing sustainable infrastructure to meet current needs. Based on data from the Central Statistics Agency (BPS) in 2023, the Net Participation Rate (APM) for the 19-24 age group reached 20.63% for higher education, including both undergraduate and diploma programs. To support this development, the Community Service Team of the Faculty of Civil Engineering collaborated with SMA Negeri 3 Jakarta to organize an activity to introduce the role of civil engineering in infrastructure development. This activity aims to familiarize students with the role of civil engineering and assist them in exploring their interests and talents in this field. The method of implementing the activity includes delivering materials, demonstrating equipment in the laboratory, and conducting a questionnaire session to determine the level of student understanding. The results showed that the level of student understanding of civil engineering reached 42% in the "understand" category and 45.8% in the "very understand" category, out of a total of 24 participants.
Pemanfaatan Aplikasi Phyphox Sebagai Alat Peraga Edukasi Gerak Harmonik Sederhana untuk Guru Ilmu Pengetahuan Alam Putri, Larasati Rizky; Febrianti, Kiar Vansa; Sentot Novianto; Utami, Ika Wahyu; Muhammad Najih; Su’udi, Bambang Cholis; Geraldine, Franskeizia
Aksiologiya: Jurnal Pengabdian Kepada Masyarakat Vol 9 No 3 (2025): Agustus
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30651/aks.v9i3.27388

Abstract

Untuk meningkatkan kualitas pembelajaran di Tangerang, kami menyelenggarakan pengabdian kepada masyarakat dengan fokus pada penggunaan aplikasi Phyphox sebagai alat bantu pembelajaran materi gerak harmonik sederhana (GHS). Tujuan dari kegiatan ini adalah untuk meningkatkan pemahaman dan keterampilan guru IPA di Tangerang menggunakan aplikasi Phyphox untuk percobaan gerak harmonik sederhana. Sasaran kegiatan ini adalah guru-guru IPA di Tangerang. Kegiatan pengabdian dikemas dalam bentuk pelatihan yang melibatkan Guru dalam pelatihan intensif dan mendalam tentang penggunaan aplikasi Phyphox sebagai alat bantu pembelajaran, sementara siswa diharapkan berpartisipasi aktif dalam percobaan menggunakan aplikasi Phyphox untuk memahami konsep gerak harmonik sederhana. Hasil penelitian menunjukkan bahwa kegiatan pelatihan tepat sasaran dan materi telah tersampaikan dengan baik. Hal ini dibuktikan dengan 74% peserta tidak menemukan kesulitan dalam membaca petunjuk kerja di buku saku percobaan berbasis aplikasi Phyphox. Hal ini juga memperkuat 67% peserta mengatakan bahwa Phyphox sangat membantu dalam pengumpulan data secara akurat. Kemudian 68% peserta lebih suka menggunakan Phyphox dalam kegiatan praktikum dibandingkan dengan instrumen laboratorium konvensional. Kegiatan pengabdian ini diharapkan mampu meningkatkan kompetensi serta profesionalisme guru dalam mengajar, sehingga kualitas pembelajaran gerak harmonik sederhana di kelas semakin optimal. Pelatihan ini juga diharapkan dapat berlanjut secara berkesinambungan dengan melibatkan lebih banyak mitra pendidik.
PELATIHAN DASAR KONTROL PENGGERAK MOTOR ROBOTIK UNTUK MENAMBAH SKILL OTOMASI DAN ROBOTIK DI PONDOK PESANTREN Novianto, Sentot; Supriyadi, Supriyadi; Rizky Putri, Larasati; Annas, M Sjahrul; Sukarnoto, Tono; Kartika Sari, Tyas; Mustajab, Alief Muharram; Siekelta, Timotius; Dwicahyo, Agus; Harliady, Mulus; Rafi, M Ali; Zulfikar, Zulfikar; Ciputra, Kristian
Kocenin Jurnal Pengabdian Kepada Masyarakat Vol. 5 No. 1 (2025): Juni 2025
Publisher : Konsorsium Cendekiawan Indonesia

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

Abstract

Kegiatan PKM ini memberikan pelatihan dasar kontrol penggerak motor robotika pada para guru di Pondok Pesantren Modern IKADI. Pelatihan ini akan memberikan wawasan, pengetahuan dan keterampilan bagi para guru untuk membuat sistem kontrol penggerak motor yang dapat difungsikan dalam robotika. Pelatihan menggabungkan teori dan praktek langsung. Materi pelatihan terdiri atas 70% praktek dan 30% teori, menggunakan modul robot dua roda, mikrokontroller, dan aplikasi Arduino. Peserta terdiri dari 9 guru Pondok Pesantren, dimana 85% dari guru tersebut belum pernah mengenal sistem kontrol. Hasil kegiatan PkM ini adalah peningkatan kemampuan skill para guru di Pondok Pesantren dari mulai menginstall software mikrokontrol, membuat coding program, merangkai wiring sensor dan mengeksekusi program yang dibuat. Diharapkan penambahan skill tersebut dapat diestafetkan kepada para santri Pondok Pesantren sehingga menambah pengetahuan dan kemampuan para santri.
Analisis Percepatan Gravitasi Lokal melalui Pendekatan Eksperimental dan Simulatif pada Bandul Fisis Utami, Ika Wahyu; Sulistiyono, Taufiq Yudi; Suudi, Bambang Cholis; Najih, Muhammad; Putri, Larasati Rizky; Mayusda, Idriwal; Rafael, Garren Benaya
JST (Jurnal Sains dan Teknologi) Vol. 14 No. 1 (2025): April
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jstundiksha.v14i1.90244

Abstract

Accuracy in measuring local gravitational acceleration remains a challenge due to the limitations of conventional experimental approaches and the influence of dynamic system conditions. Furthermore, few studies have integrated numerical simulation methods to enhance precision in the context of nonlinear oscillatory motion. This study aims to conduct an in-depth analysis of the dynamics of a damped physical pendulum and to evaluate the accuracy of local gravitational acceleration measurements by integrating experimental methods with numerical simulations. This is a quantitative study employing a quasi-experimental design. The research subject consisted of a single set of physical pendulum apparatus in the form of a homogeneous metal rod, with no human participants involved. Data were collected by measuring the oscillation period using a high-accuracy digital stopwatch and the effective length using a roll meter. Instruments were validated based on classical physics principles and result consistency tests. Numerical simulations were performed using the fourth-order Runge-Kutta method (ODE45). Data analysis included quantitative descriptive analysis, comparative analysis, relative error evaluation, and uncertainty identification. The results showed that the experimental gravitational acceleration value closely approximated the theoretical value, with a low relative error. It is concluded that integrating experimental and simulation approaches provides a more comprehensive understanding of pendulum dynamics and improves the accuracy of local gravity measurements. The findings imply the need for more complex dynamic models to support precision measurements in various fields such as geophysics, engineering, and education.
Peran Edukasi BIM dalam Meningkatkan Minat dan Kesiapan Karir Siswa SMA Bidang Teknik Sipil Digital Hermawan, Fahmy; Putri, Larasati Rizky; Fatmasari Faisal, Ulfa; Imam, Muhammad; Kuswanda, Giraldi Fardiaz
Aksiologiya: Jurnal Pengabdian Kepada Masyarakat Vol 9 No 4 (2025): November
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30651/aks.v9i4.27944

Abstract

Transformasi digital dalam industri konstruksi mendorong adopsi Building Information Modelling (BIM) sebagai teknologi kunci dalam perencanaan, desain, dan pelaksanaan proyek modern. Namun, pemahaman siswa sekolah menengah atas terhadap teknologi konstruksi digital masih sangat terbatas, disertai kurangnya fasilitas pendukung dan minimnya kolaborasi antara sekolah dan dunia industri. Kondisi ini menciptakan kesenjangan kompetensi awal yang perlu dipersiapkan sejak jenjang pendidikan menengah. Untuk menjawab tantangan tersebut, kegiatan Pengabdian kepada Masyarakat (PkM) ini dilaksanakan di SMAN 3 dan SMAN 78 Jakarta dengan tujuan meningkatkan literasi teknologi serta memperkenalkan konsep dasar BIM kepada siswa sebagai langkah awal mengenalkan bidang Teknik Sipil digital. Metode pelaksanaan meliputi presentasi interaktif, visualisasi konsep, penyajian studi kasus, dan demonstrasi perangkat lunak BIM, yang dipadukan dengan sesi diskusi untuk memperkuat pemahaman. Dampak program dievaluasi melalui penyebaran kuesioner pasca kegiatan yang menilai peningkatan pengetahuan dan minat siswa. Hasil evaluasi menunjukkan capaian yang signifikan, di mana 94,7% siswa melaporkan peningkatan pemahaman terhadap materi yang disampaikan, 94,8% menyatakan ketertarikan yang lebih besar terhadap bidang Teknik Sipil, dan 65,8% menunjukkan minat untuk mempelajari BIM secara lebih mendalam. Temuan ini mengindikasikan bahwa pendekatan berbasis demonstrasi visual dan interaksi langsung efektif dalam membangun kesiapan awal siswa menghadapi perkembangan teknologi konstruksi. Secara keseluruhan, program ini berhasil meningkatkan literasi digital dan ketertarikan siswa terhadap teknik sipil, serta memiliki potensi berkelanjutan melalui pengembangan pelatihan lanjutan, kolaborasi industri serta sekolah, dan integrasi materi BIM dalam kurikulum pendidikan menengah.
Education on natural rubber-based base isolator technology for SMKN 26 Jakarta students as an earthquake mitigation effort Diyanti, Marsetya Aulia Rahma; Herlina, Liana; Kurniyaningrum, Endah; Wijaya, Usman; Kawanda, Aksan; Putri, Larasati Rizky
Community Empowerment Vol 10 No 10 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ce.14609

Abstract

Indonesia's high vulnerability to earthquakes, which often results in severe damage and casualties, necessitates disaster risk mitigation efforts based on science and technology. This community service activity aimed to improve disaster technology literacy and students' understanding of the working principles of earthquake-resistant structures. The focus was on introducing base isolator (earthquake damper) technology made from natural rubber for residential buildings. This activity was conducted at SMKN 26 Jakarta using interactive presentations, technology demonstrations, and participative discussion methods. An evaluation of understanding was administered to 66 participants using a pre-test and post-test design. The evaluation results showed that 100% of participants experienced an increase in understanding and knowledge after the activity. This indicates that the technology demonstration-based educational approach is effective in supporting disaster technology literacy at the vocational high school level.
THE EFFECT OF THE MAKE A MATCH COOPERATIVE LEARNING MODEL ASSISTED BY WINGEOM ON STUDENTS’ MATHEMATICAL CONCEPTUAL UNDERSTANDING Fajrianto, Trian; Putri, Larasati Rizky; Hakim, Lukman El; Aziz, Tian Abdul
JME (Journal of Mathematics Education) Vol 10, No 2 (2025): JME (Jul - Dec)
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/jme.v10i2.2615

Abstract

This study aims to analyze the effectiveness of Wingeom application in cooperative learning type Make A Match to improve students’ mathematical conceptual understanding. The study was motivated by the low performance of Indonesian students in mathematics as reported in PISA 2022 (OECD, 2022). The research employed a quasi-experimental method with a posttest-only control group design. The sample consisted of 72 eighth-grade students of SMP Negeri 25 Kota Tangerang, divided into an experimental class (using Make A Match with Wingeom) and a control class (conventional learning). The research instrument was an essay test consisting of 11 items that had been validated and tested for reliability. The study provides strong evidence of measuring genuine improvement in students’ mathematical conceptual understanding, as reflected in the significant difference between the experimental group’s mean post-test score of 28.78 and the control group’s mean score of 22.69, supported by a large effect size of 0.893. Therefore, the Wingeom application proved effective in improving students’ mathematical conceptual understanding through cooperative learning type Make A Match.
The Effect of Heat Flux on the Frequency of Bubble Appearance in a Boiling Pool Muhammad Hasan; Supriyadi; Larasati Rizky Putri; Sofia Debi Puspa; Sentot Novianto
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Volume 6 Nomor 1 Tahun 2024
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v6i1.4812

Abstract

This research was conducted to determine the effect of heat flux on the frequency of bubbles appearing in boiling ponds. All fluid movement in pool boiling is caused by natural convection currents. The boiling pool consists of four areas of the pool boiling regime. The division of the four areas is based on the value of the heat flux and the difference between the surface temperature of the heater and the fluid. Using a two-phase heat transfer unit (H654 P.A. Hilton machine), The results showed that the power used greatly influences the boiling process, and besides that, the volume of water used also affects the duration of the boiling process. Based on tests using various power levels of 75 W, 110 W, 168 W, 237.5 W, and 290 W. The occurrence of bubbles will be faster and more numerous when using a lower volume of water and greater power. The heat transfer will be greater if a bubble appears, where latent heat plays a very important role. With mathematical analysis, an increase of 1 bubble per minute occurs for every increase in heat flux of 1.3 W/m2.
Evaluation of Lock Cover and STEM Dimensional Variations on Separation Force Using Multiple Regression and Statistical Process Control Puspa, Sofia Debi; Joko Riyono; Christina Eni Pujiastuti; Sentot Novianto; Larasati Rizky Putri; Ghiffari Awliya Muhammad Ashfania; Joseph Andrew Leo
Desimal: Jurnal Matematika Vol. 9 No. 1 (2026): Desimal
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/djm.v9i1.30842

Abstract

This study addresses a critical limitation in conventional manufacturing analysis by demonstrating that dimensional variation in injection-molded press-fit systems should be interpreted as an interaction-driven phenomenon rather than independent geometric effects. The research focuses on lock stem and cover dimensions produced in a multi-cavity injection molding system, where geometric dependency leads to strong multicollinearity among variables. A quantitative approach was applied using actual production data, including dimensional measurements and separation force testing. Multiple linear regression was employed to model the relationship between geometric parameters and mechanical performance, supported by classical assumption testing and multicollinearity diagnostics. The results indicate a very high coefficient of determination, showing that dimensional variation collectively explains most of the separation force variability. However, severe multicollinearity limits the reliability of individual parameter interpretation and highlights the need for system-level analysis. Statistical Process Control confirms that the process operates within stable limits, while process capability analysis shows compliance with specification requirements. Despite this, variation in separation force persists, indicating high sensitivity to small geometric deviations. These findings emphasize that process stability alone is insufficient to ensure consistent performance. This study introduces an integrated framework combining regression, SPC, and capability analysis, providing both theoretical insight and practical guidance for improving dimensional control in precision manufacturing.
Co-Authors Abigunto Amoro Adji Adi Sucipto, Adi Adinegoro, Faisal Aditya Pradika Adji, Abigunto Amoro Ahmad Bukhari Muslim Ahmad Farhan Ahmad Farhan, Ahmad Ahmad Roqy Mustafidan Aji, Abigunto Amoro Aji Aksan Kawanda Amrullah Gilang Amrullah Gilang Ibrahim Annas, M Sjahrul Annas, M. Sjahrul Ashfania, Ghiffari Awliya Muhammad Azizah Nurul Hanifati Baehaqi Bambang Cholis Bambang Cholis Su'ud Bambang Cholis Su’udi Christina Eni Pujiastuti Ciputra, Kristian Daniel Dewi, Linggar Candra Dian Mardi Safitri Diyanti, Marsetya Aulia Rahma Dwicahyo, Agus Endah Kurniyaningrum Ezra Halomoan Fahmy Hermawan Fajrianto, Trian Fakhrizal Arsi, Fakhrizal Fatmasari Faisal, Ulfa Febrianti, Kiar Vansa Geraldine, Franskeizia Giraldi Fardiaz Kuswanda Hakim, Lukman El Harliady, Mulus Harry Munandar Harry Munandar Harum Yuniarti Idriwal Mayusda Ika Wahyu Utami Imas Widhah Misshuari Ismail, Muhammad Luthfi Ivan Halim Jeevan Kristori Jesika Erventy Joko Riyono Joseph Andrew Leo Kartika Sari, Tyas Kawanda, Aksan Kiar Vansa Febrianti Kiyoshi Irisawa Komara, Rangga Liana Herlina Liana Herlina Maria Stevanie Dwi Meiliasari Muhammad Doris Muhammad Hasan Muhammad Ihram Maulana1, Muhammad Ihram Muhammad Imam, Muhammad Muhammad Najih Muhammad Najih Muharram, Alief Muhawid AL Ken Mustafidan, Ahmad Roqy Mustajab, Alief Muharram Najih, Muhammad Nora Azmi Nora Azmi NOVIA RAHMAWATI PUDJI ASTUTI Puspa, Sofia Debi Rafael, Garren Benaya Rafi, M Ali Rafi, Muhammad Ali Rangga Komara Riyanto , FX Sugeng Rositayanti Hadisoebroto Sally Cahyati Sally Cahyati Sentot Novianto Sentot Novianto Sentot Novianto Sentot Novianto, Sentot Siekelta, Timotius Sofia Debi Puspa Sulistiyono, Taufiq Yudi Supriyadi Supriyadi Supriyadi Supriyadi Su’udi, Bambang Cholis Tian Abdul Aziz Tono Sukarnoto, Tono Trian Fajrianto Wardani Rahayu Yunita Friscila Suryana