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All Journal Jurnal Pendidikan Teknik Mesin Rekayasa Mesin eUREKA : Jurnal Penelitian Mahasiswa Teknik Sipil dan Teknik Kimia Journal of Information System Sistemasi: Jurnal Sistem Informasi Jurnal Belantara International Journal of Supply Chain Management Daun: Jurnal Ilmiah Pertanian dan Kehutanan MULTINETICS JSAI (Journal Scientific and Applied Informatics) JURNAL CRANKSHAFT Science Midwifery Sprocket : Journal of Mechanical Engineering MAKILA: Jurnal Penelitian Kehutanan CELEBES Agricultural Jurnal Sehat Indonesia (JUSINDO) National Multidisciplinary Sciences Journal of Management and Innovation Entrepreneurship (JMIE) Jurnal Pengabdian Masyarakat Nasional Majalah Teknik Mesin
Andi Nugroho, Andi
Prodi Pendidikan Teknik Mesin, Universitas Negeri Semarang
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PENINGKATAN EFISIENSI PROSES PRODUKSI DENGAN PENURUNAN LINE STOP MESIN EXTRUDE MENGGUNAKAN METODE QCC DAN PDCA Supriadi, Adi; Nugroho, Andi; Soleh, Mualim; Dermawan, Bintang; Prasetyo, Yudi
Journal of Management and Innovation Entrepreneurship (JMIE) Vol. 3 No. 1 (2025): Oktober
Publisher : Yayasan Nuraini Ibrahim Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70248/jmie.v3i1.2446

Abstract

Studi ini bertujuan untuk meningkatkan efisiensi produksi pada proses pembuatan Catch Seat Trim model YHA (Ertiga) di area Extrude dengan menurunkan jumlah line stop pada Pos 1. Melalui pendekatan sistematis berbasis Quality Control Circle (QCC) dan Plan-Do-Check-Action (PDCA), penelitian ini menganalisis akar penyebab line stop yang meliputi metode kerja, kondisi mesin, dan metode material handling. Implementasi perbaikan, termasuk pemasangan sensor proximity, pembuatan heater portable untuk pre-heat mold, modifikasi troli unloading mold yang ergonomis, serta pengembangan alat bantu counting otomatis berbasis Karakuri, berhasil meningkatkan efisiensi produksi secara signifikan dari 93,02% menjadi 95,15%. Hasil penelitian ini menunjukkan bahwa pendekatan QCC dan PDCA, dengan fokus pada identifikasi akar masalah dan implementasi solusi yang terukur, mampu membawa dampak signifikan terhadap peningkatan produktivitas dan efisiensi operasional. Kata kunci: Efisiensi produksi, Line Stop, QCC, Extrude, PDCA, Lean Manufacturing
Exploration of Plant Disturbing Organisms (PDOs) in Trembesi (Samanea saman) Seedlings in Tectona Bukit Soeharto Seedlings Rucmana Saud, Oshlifin; Syarifudin, Achmad; Rafii Nur Fauzan, Muhammad Rafii; Nugroho, Andi; Sri Utami, Widia
CELEBES Agricultural Vol. 6 No. 1 (2025): CELEBES Agricultural
Publisher : Faculty of Agriculture, Tompotika Luwuk University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52045/jca.v6i1.995

Abstract

The seedling phase is a critical stage in plant development, where the presence of plant-disturbing organisms (PDOs) can significantly reduce seedling quality and viability, particularly in rehabilitation species such as Samanea saman (Trembesi). This study aimed to analyze the intensity of pest and disease attacks, identify the types of PDOs involved, and describe the symptoms and signs of infestation observed in S. saman seedlings at the Tectona Nursery, KHDTK Bukit Soeharto, East Kalimantan. A simple random sampling method was applied to select 50 seedlings from a total population of 1,000 four-month-old individuals. Data collection was conducted through direct field observation of physical plant conditions, severity scoring, and documentation of symptoms and signs of biotic attack. The results showed that all sampled seedlings were affected, with an infestation intensity reaching 65.2%, classified as heavily infested. The observed symptoms included defoliation, foliar tissue loss (skeletonizing), leaf spots, leaf blight, and stem boring. Identified signs of attack included larvae from the order Lepidoptera and  mealybug (Pseudococcidae) and aphids, which are suspected to be the primary agents of tissue damage. These findings underscore the importance of monitoring pest and disease populations and implementing ecologically based Integrated Pest Management (IPM) strategies tailored to the nursery microclimate. Technical training and coordinated IPM implementation are essential to enhance seedling resilience and support the success of tropical forest rehabilitation.
Analisa Pengaruh Arah Panel Surya Terhadap Daya Nugroho, Andi; Nababan, Wilson Sabastian; Setyawan, Eko Yohanes; Peranginangin, Siwan Ediamanta; Sihombing, Suriady
SPROCKET JOURNAL OF MECHANICAL ENGINEERING Vol 6 No 1 (2024): Edisi Agustus 2024
Publisher : Program Studi Teknik Mesin, Universitas HKBP Nommensen, Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36655/sprocket.v6i1.1624

Abstract

Pada penelitian ini penulis menganalisis pengaruh arah panel surya terhadap arus, tegangan, dan intensitas cahaya matahari di Kalimantan Timur dengan sudut kemiringan 25°. Penelitian ini melibatkan tiga variabel arah panel surya: timur, utara, dan barat. Data yang diperoleh melalui pengukuran langsung intensitas cahaya matahari, arus, dan tegangan yang dihasilkan oleh panel surya pada berbagai waktu dalam sehari. Hasil penelitian ini menunjukkan bahwa orientasi panel surya memiliki pengaruh signifikan terhadap efisiensi konversi energi surya. Pada arah timur dan barat menghasilkan arus dan tegangan yang lebih tinggi pada pagi dan siang hari, sedangkan dengan arah utara menghasilkan performa yang lebih stabil sepanjang hari. Temuan ini dapat menjadi referensi penting bagi pengoptimalan pemasangan panel surya di wilayah tropis seperti Kalimantan Timur.
Aplikasi Remote Desktop Komputer dalam Menunjang Proses Belajar Mengajar pada Lab Fasilkom dengan iTALC Nugroho, Andi
MULTINETICS Vol. 3 No. 1 (2017): MULTINETICS Mei (2017)
Publisher : POLITEKNIK NEGERI JAKARTA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/multinetics.v3i1.1071

Abstract

Proses belajar mengajar yang diselenggarakan di Universitas Mercu Buana, dimana dosen memberikan materi di depan kelas dan mahasiswa memperhatikan dosen dari bangkunya masing-masing. Hal ini yang membuat proses belajar mengajar di Universitas Mercu Buana menjadi kurang efektif terutama di ruang laboratorium fakultas ilmu komputer (Fasilkom) yang berjumlah 6 kelas. Setiap mahasiswa disediakan komputer pada setiap mejanya. Mahasiswa dapat membuka komputer dan melakukan hal-hal yang tidak diinginkan. Hal inilah yang menyebabkan kurangnya pemantauan, dosen tidak dapat memantau secara keseluruhan kinerja dari siswanya satu per satu. Dengan adanya aplikasi remote desktop ini diharapkan dosen dapat memantau kinerja mahasiswanya dari komputer dosen yang berada di depan kelas. Koordinator lab dan juga tim laboran dapat melakukan maintenance lab secara realtime dengan menggunakan aplikasi tersebut tanpa harus ke lapangan, cukup di-remote dari ruang laboran. Aplikasi remote desktop ini dapat mengunci tampilan mahasiswa yang membuka aplikasi selain dari mata kuliah yang semestinya sehingga mahasiswa tersebut tidak dapat menggerakkan kursornya sebelum dosen membukakan hak aksesnya. 
SOSIALISASI DAN PEMANFAATAN APLIKASI KESEHATAN KEPADA MASYARAKAT Jumaryadi, Yuwan; Ani, Nur; Priambodo, Rinto; Ratnasari, Anita; Rahayu, Sarwati; Maesaroh, Siti; Nugroho, Andi
Jurnal Pengabdian Masyarakat Nasional Vol 4, No 2 (2024)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/pemanas.v4i2.27206

Abstract

Salah satu faktor yang mempengaruhi keberhasilan penerapan aplikasi kesehatan di masyarakat adalah kemampuan masyarakat dalam menerima penggunaan aplikasi kesehatan. Keberhasilan implementasi aplikasi kesehatan harus mampu mengintegrasikan teknologi kesehatan digital dengan kebijakan pemerintah. Untuk memastikan masyarakat dapat menerima dan menggunakan teknologi kesehatan digital, maka perlu didukung oleh perguruan tinggi untuk memberikan peningkatan pengetahuan dan kemampuan menggunakan aplikasi kesehatan dengan baik kepada masyarakat, terutama pada masyarakat dengan kondisi demografi yang kurang ideal, seperti rendahnya literasi digital. dan buruknya akses terhadap kesehatan. Bintaro merupakan salah satu kelurahan di Jakarta Selatan yang memiliki visi untuk meningkatkan pelayanan kesehatan masyarakat dengan memaksimalkan penerapan teknologi. Dengan kondisi geografis dan demografi penduduk yang cukup menantang dalam menerima teknologi baru, maka diperlukan kegiatan yang dapat meningkatkan pemahaman dan pengetahuan untuk menggunakan aplikasi Kesehatan Masyarakat sebagai upaya meningkatkan penerimaan pelayanan kesehatan secara cepat dan memadai. Oleh karena itu, tim dosen Fakultas Ilmu Komputer Universitas Mercu Buana Jakarta melaksanakan kegiatan pengabdian masyarakat untuk memberikan sosialisasi penggunaan aplikasi Kesehatan untuk membantu mendukung program pemerintah dan juga program Kementerian Kesehatan dalam hal kesehatan digital transformasi.
Comparison of k-Nearest Neighbor and Support Vector Machine using Binary Dragonfly Algorithm Optimization Nugroho, Andi; Khomeini, Muhammad Imam; Heraldi, Rifan
Sistemasi: Jurnal Sistem Informasi Vol 13, No 1 (2024): Sistemasi: Jurnal Sistem Informasi
Publisher : Program Studi Sistem Informasi Fakultas Teknik dan Ilmu Komputer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32520/stmsi.v13i1.2953

Abstract

BDA is an adaptation of Dragonfly Algorithm (DA) that optimizes computation for single-objective, discrete, and multi-objective problems. Combining BDA optimization algorithm with KNN and SVM classification algorithms aims to improve the performance of the prediction model. This research compares and tests accuracy of KNN and SVM algorithms on the diabetes dataset used in research to find out the best algorithm in predicting diabetes. This research uses the BDA optimization algorithm to select the best features in the dataset, then the KNN and SVM classification algorithms, in classifying data, predicting, and comparing the accuracy of the accuracy of the two algorithms on the diabetes dataset. Medical record data from people with diabetes is processed using the KNN and SVM algorithms, which will then produce an accuracy level that can be used in predicting diabetes. Previous research has conducted a comparison between classification algorithms in predicting diabetes. In the previous research above, no one has combined BDA with classification algorithms, because BDA itself is a relatively new method and has not been widely studied, so researchers use this optimization algorithm. The results of the research conducted obtained the highest accuracy results in the BDA + KNN algorithm with a Precision value of 96.10%, Recall 79.36%, F-1 Score 86.93% and Accuracy 85.55%.
Persepsi Masyarakat Terhadap Kegiatan Penanaman Mangrove: Studi Kasus di Desa Sepatin Delta Mahakam Sulistianto, Tya Rahmasari; Saud, Oshlifin Rucmana; Nugroho, Andi; Syarifudin, Achmad; Ahmad, Riza Fandi; Ramadhani, Nadya; Yasir, Nazril Falah; Pabane, Mega Putri Aulia; Fajar, Juliyan Rahmat
Daun: Jurnal Ilmiah Pertanian dan Kehutanan Vol. 12 No. 2 (2025): Daun: Jurnal Ilmiah Pertanian dan Kehutanan
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/daun.v12i2.11024

Abstract

Public perception plays an important role in the success of mangrove planting activities. The community interacts directly with the mangrove ecosystem, so their perceptions will influence whether or not they will support and participate in planting activities. This study aims to determine the community's perceptions of mangrove planting activities in Sepatin Village, Mahakam Delta. The main data in this study were obtained through interviews. Interviews were conducted with 50 respondents who were selected purposively based on their involvement in mangrove planting activities. The research aspects consisted of four categories, namely knowledge, perception, participation, and future expectations. The data in this study were analyzed using descriptive statistics and presented in the form of diagrams and percentages. The results of the study show that 98% of respondents are aware of the mangrove planting activities carried out in Sepatin Village. The community has a very positive response to the planting activities, with 68% strongly agreeing and 32% agreeing with the activities. Mangrove planting activities have a positive impact on increasing fish catches and improving environmental quality. Several things need to be improved in mangrove planting activities, namely the need to involve the community in the planning and implementation of activities and to raise public awareness of the importance of mangrove ecosystems. Another thing that needs to be improved is the expectation that the government will provide adequate facilities and training for the community to support and enrich their knowledge on how to manage and utilize mangroves sustainably.
Dinamika Perubahan Tutupan Lahan dan Emisi Karbon dari Deforestasi dan Degradasi Hutan di Kabupaten Kutai Timur Tahun 2019 - 2024 Fauzan, Muhammad Rafii Nur; Suhardiman, Ali; Naufalianto, Ikhsan Fiqra; Syarifudin, Achmad; Nugroho, Andi; Saud, Oshlifin Ruchmana
MAKILA Vol 19 No 2 (2025): Makila : Jurnal Penelitian Kehutanan
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/makila.v19i2.22634

Abstract

This study aims to analyze land cover changes and estimate carbon emissions resulting from deforestation and forest degradation in Kutai Timur Regency during the period of 2019–2024. The analysis was conducted using land cover vector data from the Ministry of Environment and Forestry, which was analyzed with the pairwise comparison method and Geographic Information System (GIS). Carbon emissions were calculated based on Tier 2 IPCC with emission factors for each land cover class.The results of the study show that deforestation is the main contributor to carbon emissions, with the highest increase in emissions during 2023–2024, reaching 9,702,628 tons CO₂e. The decrease in emissions during 2020–2022 aligns with the implementation of the moratorium policy, but an increasing trend in emissions was observed again in 2022–2024, indicating that pressure on forest land remains high. Natural regeneration of secondary forests occurred, but its contribution was not sufficient to offset the loss from deforestation. Spatial patterns show that the largest forest conversion took place in agricultural areas, mining, open land, and scrublands. These findings emphasize the importance of consistent jurisdiction-based forest management policies to achieve the FOLU Net Sink 2030 target and support climate change mitigation.
Inventarisasi Hama dan Penyakit pada Bibit Lima Jenis Tanaman Buah Tropis di Persemaian Mentawir Saud, Oshlifin Rucmana; Syarifudin, Achmad; Nugroho, Andi; Saud, Oshferlia Rucmana; Utami, Widia Sri
MAKILA Vol 19 No 2 (2025): Makila : Jurnal Penelitian Kehutanan
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/makila.v19i2.22687

Abstract

The nursery phase represents a critical early space in plant cultivation, which is highly susceptible to pest and disease incidence. Mentawir Nursery, as one of the largest seedling centers in East Kalimantan, plays a strategic role in supporting reforestation programs, including for Indonesia’s new capital city (IKN). This study aims to identify and document the types of pests and diseases affecting five tropical fruit crops, as well as to analyze the incidence and severity. The five plant species observed in this study are Citrus sinensis, A. integer, Psidium guajava, Mangifera indica, and Dimocarpus longan. The research method employed is Simple Random Sampling, with observations conducted on 20 individuals from each plant species. The collected data include attack levels, symptoms, and signs of pest and disease infestations.The results indicate that four plant species experienced a 100% attack frequency, while one species had an 80% attack rate. The severity of the attacks ranged from moderate to severe. The observed disease symptoms included leaf spots, leaf blight, loss of leaf tissue, internal leaf tissue loss, leaf tumors, and leaf curling. Identified infestation signs included the presence of whiteflies (Hemiptera), larvae (Diptera), small beetles (Coleoptera), as well as larvae and pupae (Lepidoptera).These findings serve as a basis for pest and disease management at Mentawir Nursery to enhance seedling success and plant productivity.
STUDY ON THE INFLUENCE OF THE ANGULAR DIRECTION OF ALUMINUM COOLING FINS ON THE WORKING TEMPERATURE OF SOLAR PANELS Binyamin, Binyamin; Riswan, Muhammad; Nugroho, Andi; Julianto, Eko
Media Mesin: Majalah Teknik Mesin Vol. 27 No. 1 (2026)
Publisher : Universitas Muhammadiyah Surakarta

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

Abstract

The utilization of solar energy through solar panels as a source of electrical energy for households and street lighting is increasing rapidly. However, solar panels face problems related to working temperature. When the absorption of solar radiation is too high, it results in a decrease in efficiency. High temperatures cause solar panels to produce lower energy than in cold conditions. Therefore, the purpose of this study was to explore the effect of aluminum cooling fins on solar panels, with variations of fin inclination angles of 30° and 45°, and compared with panels without a cooling system to reduce the working temperature of solar panels by using cooling fins and air blowing media. The results showed that at an angle of 30°, the panel temperature was 43.60°C at the 13th iteration, with a temperature drop of about 3.13%. At an angle of 45°, the temperature obtained was 41.80°C with a temperature drop of about 6.68%. Meanwhile, the uncooled condition reached a maximum temperature of 44.40°C. No cooling causes the panel temperature to be higher, and the 45° angle provides a better cooling effect than the 30° angle, although the difference is not very significant when compared to the uncooled condition.
Co-Authors Achmad Syarifudin, Achmad Afriza, Arianti Nur Ahmad, Riza Fandi Akbar Ramadhan, Muhaimin Andy Kristafi Arifianto Anis Siti Nurrohkayati Anita Ratnasari Binyamin Binyamin, Binyamin Christian Dini, Gabriella Dermawan, Bintang Diana , Rita Dwi Antono, Aji Eko Julianto Elfan Prayoga, Muhamad Faatih, Muhammad Al Fajar, Juliyan Rahmat Girardi, Alan Evin Hadiguna Setiawan Hastaniah, Hastaniah Heraldi, Rifan Hery Tri Waloyo Jumaryadi, Yuwan Karya Saputra, Didy Khanif Setiyawan Khomeini, Muhammad Imam Kodar, Achmad Mega Nur Sasongko Muhammad Khumaedi Mujianto, Agus Nababan, Wilson Sabastian Naufalianto, Ikhsan Fiqra Nur Ani Pabane, Mega Putri Aulia Paulus Matius Po Abas Sunarya Purba, Mariana Putra, Erwin Dwika Rafii Nur Fauzan, Muhammad Rafii Ramadhani, Nadya Ramadhani, Reza Rinto Priambodo Riswan, Muhammad Riyan Fadillah, Rizky Rucmana Saud, Oshlifin Salamah, Umniy Sarwati Rahayu Saud, Oshferlia Rucmana Saud, Oshlifin Ruchmana Saud, Oshlifin Rucmana Sepsamli, Letus Setiawan, Khanif Setyawan, Eko Yohanes Setyawan, Lukman Sigiet Haryo Pranoto Sihombing, Suriady Siti Maesaroh siwan edi amanta Perangin angin Soleh, Mualim Suhardiman, Ali Suhudi . Sukotjo, Ivanda Andinar Sulis Sandiwarno Sulistianto, Tya Rahmasari Supriadi, Adi Try Waloyo, Heri Widia Sri Utami Widya Wijayanti Wita Oktaviana Yasir, Nazril Falah Yoland Stanis Witak, Yosef Yudha, Bayu Porsea Yudi Prasetyo Yuliadi, Boy