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Studi Persoalan Sistem Persamaan Linear dalam Rangkaian Listrik Berbasis Matlab dan OBE Ilmi, Ulul; Faroh, Rifky Aisyatul; Hanifah, Ayu Ismi; Mukhoyyaroh, Indah
ELECTRA : Electrical Engineering Articles Vol. 3 No. 2 (2023)
Publisher : UNIVERSITAS PGRI MADIUN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/electra.v3i2.15708

Dalam dunia teknik salah satu contoh penggunaan matriks adalah untuk mencari solusi sistem persamaan linear (SPL). Dalam bidang keilmuan yang mempelajari Â rangkaian listrik, tidak jarang digunakan matriks untuk menghitung besaran-besaran atau nilai-nilai yang ada di dalam rangkaian listrik. Untuk mempermudah dalam mencari nilai-nilai tersebut Â digunakan proses operasi baris elementer (OBE) dan invers matlab serta Eliminasi Gauss berbasis Matlab sehingga akhirnya diperoleh nilai-nilai yang terdapat di dalam rangkaian listrik tersebut. Nilai-nilai tersebut adalah arus listrik.

Development Of a Learning Module Based on Religious Moderation Values in the East Lampung Al-Quran Education Park Herawati, Novita; Aprilia, Nada; Ilmi, Ulul
Tarbawiyah Jurnal Ilmiah Pendidikan Vol 9 No 1 (2025): Tarbawiyah : Jurnal Ilmiah Pendidikan
Publisher : Universitas Islam Negeri (UIN) Jurai Siwo Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32332/tarbawiyah.v9i1.9932

Religious moderation can be internalized from an early age to form a moderate character in society. The Baitul Ibadah Al-Quran Education Park (TPQ) in Braja Indah is a strategic place to teach the values of religious moderation to students, especially considering the ethnic diversity that exists. This research uses the ADDIE (Analysis, Design, Development, Implementation, Evaluation) development model to produce a learning module based on religious moderation. After going through the development stages, the resulting teaching module was declared valid by experts. The assessment shows that the module meets the validation criteria and can be used as effective teaching material. Module Validity: The average score from the validator assessment indicates that the module meets the valid criteria. Module Practicality: The results of the ustadzah assessment show that the module is very practical to use in learning. Module Effectiveness: The percentage of students' learning completion reached 80%, indicating that the module was effective in increasing students' understanding of religious moderation. The development of a Koran Education Park learning module based on the values of religious moderation can increase students' understanding of indicators of religious moderation.

Study of Matrix Inversion in MATLAB and Cramer's Rule on Electrical Circuits Ilmi, Ulul; Wahid, Abdur Rohman; Sholikhin, Mochammad
Jurnal Ilmiah Komputasi Vol. 24 No. 2 (2025): Jurnal Ilmiah Komputasi : Vol. 24 No 2, Juni 2025
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32409/jikstik.24.2.3780

Understanding the principles of physics, especially in a 2-loop electrical circuit, requires applying Kirchhoff's Laws to form a system of linear equations. While substitution-elimination methods are commonly used to solve these systems, they become inefficient when dealing with more than three variables. As an alternative, Cramer's Rule, which involves using matrix determinants and the cofactor method, proves to be more effective, particularly for larger systems. The research shows that both Cramer's Rule and the matrix inversion method produce consistent results for current calculations. The current values obtained from the first and second circuits match those calculated using the cofactor method. These techniques are not limited to electrical circuits; they can also be applied in other engineering fields, such as dynamic systems analysis and mechanics. A solid understanding of Cramer's Rule, cofactors, and matrix inversion is essential for analyzing both physical and engineering systems. In the first circuit, the results are i₁ = 0.25 A, i₂ = 2.5 A, and i₃ = 2.75 A, while in the second circuit, the results are i₁ = 1 A, i₂ = 2 A, and i₃ = 1 A.

Prototype Kotak Menjaga Kekeringan Dan Kelembaban Sepatu Berbasis Mikrokontroller Afandi, Faizal Qurnia; Bachri, Affan; Ilmi, Ulul
Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems) Vol. 16 No. 1 (2022)
Publisher : Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jeeccis.v16i1.683

Shoes are one of the most important clothes for daily life. However, not just a season factor that affects of the problem to drying shoes when wet, could be due to the situation and conditions like in the evening that would not be possible and will not be able to find the scorching light or sunlight. Based on the problem, the author devising a shoes dryer as well as odor-causing bacterial disinfectant in shoes. The result of Prototype Box Dryer and Automatic Bacterial Disinfectant Odor Causing of Shoes in Microcontroller Based, when the power supply is given voltage then the tool will be working. How Prototype Box Dryer and Automatic Bacterial Disinfectant Odor Causing of Shoes in Microcontroller Based works : the first fan will lit up appropriate to humidity above 90%, the second fan will lit up appropriate to the temperature above 34ÂºC, heating element lit up appropriate to humidity above 90%, UV-C lamp will lit up appropriate to humidity below 89%. The result of the temperature and humidity will be showing on the LCD 16x2

Solusi rangkaian listrik berbasis invers matlab dan Gauss-Jordan Manual ilmi, ulul
Jurnal Ilmiah Teknologi Informatika Vol 3 No 1 (2025): JITAKU: Jurnal Ilmiah Teknologi Informatika UNCP
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30605/jitaku.v3i1.114

Pada penelitian ini, dilakukan pemecahan masalah rangkaian listrik menggunakan dua metode yang berbeda, yaitu metode invers matriks MATLAB dan metode eliminasi Gauss-Jordan secara manual. Dalam rangkaian listrik, analisis jaringan dilakukan untuk mencari arus atau tegangan pada berbagai titik dengan menggunakan hukum Kirchhoff, baik hukum arus (KCL) maupun hukum tegangan (KVL). Metode pertama yang digunakan adalah metode invers matriks MATLAB, di mana rangkaian listrik yang melibatkan banyak komponen (resistor, sumber tegangan, dan arus) dapat dianalisis dengan menyusun persamaan linear yang mewakili rangkaian tersebut. Matriks koefisien kemudian dihitung inversnya untuk mendapatkan solusi langsung terkait dengan sistem persamaan aljabar linear yang terstruktur. Metode kedua adalah eliminasi Gauss-Jordan manual, yang memungkinkan pemecahan sistem persamaan linear simultan secara bertahap melalui usaha perlakuan terhadap baris elementer yang ditujukan untuk matriks koefisien. Teknik ini dapat digunakan untuk memperoleh solusi tanpa bantuan perangkat lunak, dengan mengubah matriks menjadi bentuk eselon tereduksi hingga solusi akhirnya diperoleh. Kedua metode tersebut memberikan hasil yang dapat dibandingkan untuk memastikan keakuratan perhitungan arus dan tegangan dalam rangkaian listrik. Meskipun metode MATLAB lebih efisien dan cepat, metode Gauss-Jordan manual menawarkan pemahaman yang lebih mendalam tentang proses penyelesaian sistem persamaan secara manual. Kedua pendekatan ini dapat digunakan sesuai dengan kebutuhan dan kompleksitas analisis rangkaian listrik yang dihadapi.

Budidaya Tanaman Obat Keluarga sebagai Upaya Pemberdayaan Masyarakat di Desa Tanggulangin Dewi Susanti, Liana; Salsabila Azzahra, Nazwa; Ansania, Anggi; Tia Larasati, Erika; Triliyani, Indah; Khoiriyah, Miftahul; Asih, Murni; Kurniawati, Mutiara; Fajar Baharudin Yusuf, Muhammad; Hikmah, Sofiatul; Ilmi, Ulul
DEDIKASI: Jurnal Pengabdian Masyarakat Vol 6 No 2 (2024): Dedikasi: Jurnal Pengabdian Masyarakat, Juli-Desember 2024
Publisher : Pusat Pengabdian Masyarakat LPPM IAIN Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32332/9y0xk656

Tanaman Obat Keluarga (TOGA) adalah tanaman berhasiat yang dapat ditanam di lahan pekarangan, ladang, maupun media tanam seperti polybag yang dikelola oleh keluarga. Warga dusun Sukowati sudah mulai memanfaatkan TOGA untuk pengobatan atau bahan tambahan untuk makanan, akan tetapi belum ada satupun warga yang menanam TOGA secara Mandiri. Kegiatan ini bertujuan untuk menyediakan TOGA di lingkungan masyarakat sekitar, meningkatkan pengetahuan dan pemanfaatan TOGA di masyarakat. Kegiatan pengabdian dengan metode PAR ini dilaksanakan di Tanggulangin, Sukowati, Punggur, Lampung Tengah pada tanggal 29 Mei 2024. Kegiatan ini cukup berhasil karena telah tersedia tanaman TOGA di beberapa halaman warga, dan adanya peningkatan pengetahuan mengenai jenis tanaman TOGA dan tata cara penanaman dan pemanfaatannya.

Study on the design of the Remote Distance Recording Automation Tool for Regional Water Utility Companies (PDAM) Water Distribution Using WIFI Ilmi, Ulul; Muiz Pratama, Abdul
SAINSTECH NUSANTARA Vol. 1 No. 3 (2024): August 2024
Publisher : Nusantara Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71225/jstn.v1i3.44

Based on the research study on the design of the Remote Distance Recording Automation Tool for PDAM Water Distribution Using WIFI, several conclusions can be drawn. The PDAM water usage recording device, which uses the Water Flow YF-S201 sensor on a microcontroller installed in the PDAM water distribution flow, can accurately read the volume of water flowing through the sensor. Experiments showed that the sensor achieved an average accuracy of 98.9% for water volumes ranging from 1.5 liters to 15 liters. This demonstrates the sensor's high precision in measuring water flow.To build the hardware and software circuit, the ESP8266 WiFi module was used on the atmega328 microcontroller. The data sent to the server via the WiFi network worked as expected as long as it was within the range of the access point. Testing was conducted with a maximum distance of 8 meters, as the WiFi access point device used in the experiment could only reach a maximum of 10 meters and operated at a frequency of 2.4 GHz. This shows that the system can function well within a certain range and supports efficient wireless data transfer.

Moving Horizon State Estimation for Linear System with Application to Autonomous Vehicle Purnawan, Heri; Ilmi, Ulul; Faroh, Rifky Aisyatul; Ar Rizqi, Ahmad Bustanul Ali; Resmi, Fitroh
InPrime: Indonesian Journal of Pure and Applied Mathematics Vol. 5 No. 1 (2023)
Publisher : Department of Mathematics, Faculty of Sciences and Technology, UIN Syarif Hidayatullah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/inprime.v5i1.28313

AbstractThis paper proposes moving horizon estimation (MHE) to estimate the state variables of autonomous vehicle linear systems under measurement noises. To solve the MHE optimization problem, quadratic programming is employed. The steering angle, yaw angle, and global position constraints of an autonomous vehicle are considered in the estimation design. According to the simulation results, it can be observed that although the longer MHE step can give better results compared to the shorter MHE step, the difference in the MHE step only slightly affects the estimated results. However, the longer MHE step can increase the computational time. Additionally, the proposed MHE scheme is compared to the Kalman filter (KF) estimator. Based on the obtained results, the KF gives a better estimation than the MHE, but this notion must be verified for other case studies.Keywords: autonomous vehicle; Kalman filter; linear system; MHE; quadratic programming. AbstrakPaper ini mengusulkan moving horizon estimation (MHE) untuk mengestimasi variabel keadaan sistem linier kendaraan otonom karena pengaruh noise pengukuran. Untuk menyelesaikan masalah optimasi MHE, digunakan pemrograman kuadratik. Kendala sudut kemudi, sudut yaw dan posisi global dari kendaraan otonom dipertimbangkan dalam desain estimasi. Dari hasil simulasi dapat diketahui bahwa meskipun langkah MHE yang lebih panjang dapat memberikan hasil yang lebih baik dibandingkan dengan langkah MHE yang lebih pendek, perbedaan langkah MHE hanya sedikit mempengaruhi hasil estimasi. Namun, langkah MHE yang semakin panjang dapat meningkatkan waktu komputasi. Selain itu, skema MHE yang diusulkan dibandingkan dengan estimator Kalman filter (KF). Berdasarkan hasil yang diperoleh, KF memberikan estimasi yang lebih baik daripada MHE, tetapi gagasan ini harus diverifikasi untuk studi kasus lainnya.Kata Kunci: kendaraan otonom; Kalman filter; sistem linier; MHE; pemrograman kuadratik. 2020MSC: 62P35, 65D19

Dari Direct Selling ke Digital Branding: Strategi Pemasaran UMKM “ Bakpia Oma Dian” di Era Digital Dewi, Liana; Susanti, Liana Dewi; Ilmi, Ulul; Yusuf, M Fajar Baharudin; Kurniawati, Mutiara; Asih, Murni
Adzkiya : Jurnal Hukum dan Ekonomi Syariah Vol 13 No 1 (2025): Adzkiya: Jurnal Hukum dan Ekonomi Syariah
Publisher : Fakultas Ekonomi dan Bisnis Islam Institut Agama Islam Negeri Meto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32332/3mee3s15

Marketing plays a crucial role in ensuring business sustainability amid increasingly intense competition. This study aims to analyze the marketing strategy transformation from direct selling to digital branding at the MSME Bakpia Oma Dian located in Tanggulangin Village, Punggur District. The research employs a Participatory Action Research (PAR) approach, which integrates the research process with social transformation through three main strategies: collective commitment with the community, the involvement of local leaders, and the establishment of community-based institutions. The findings reveal that the digital branding strategies implemented include improving product quality, innovating flavors and packaging, setting affordable prices, choosing strategic business locations, and promoting products through social media platforms such as WhatsApp, Facebook, and Instagram. This transformation has successfully enhanced competitiveness and strengthened the brand image of Bakpia Oma Dian in the digital era. Keywords: Direct Selling, Digital Branding, Marketing Strategy, MSME, Digital Era.

Dari Direct Selling ke Digital Branding: Strategi Pemasaran UMKM “ Bakpia Oma Dian” di Era Digital Dewi, Liana; Susanti, Liana Dewi; Ilmi, Ulul; Yusuf, M Fajar Baharudin; Kurniawati, Mutiara; Asih, Murni
Adzkiya : Jurnal Hukum dan Ekonomi Syariah Vol 13 No 1 (2025): Adzkiya: Jurnal Hukum dan Ekonomi Syariah
Publisher : Fakultas Ekonomi dan Bisnis Islam Institut Agama Islam Negeri Meto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32332/3mee3s15

Marketing plays a crucial role in ensuring business sustainability amid increasingly intense competition. This study aims to analyze the marketing strategy transformation from direct selling to digital branding at the MSME Bakpia Oma Dian located in Tanggulangin Village, Punggur District. The research employs a Participatory Action Research (PAR) approach, which integrates the research process with social transformation through three main strategies: collective commitment with the community, the involvement of local leaders, and the establishment of community-based institutions. The findings reveal that the digital branding strategies implemented include improving product quality, innovating flavors and packaging, setting affordable prices, choosing strategic business locations, and promoting products through social media platforms such as WhatsApp, Facebook, and Instagram. This transformation has successfully enhanced competitiveness and strengthened the brand image of Bakpia Oma Dian in the digital era. Keywords: Direct Selling, Digital Branding, Marketing Strategy, MSME, Digital Era.

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