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All Journal Mechatronics, Electrical Power, and Vehicular Technology Filogeni: Jurnal Mahasiswa Biologi Educommunity Jurnal Pengabdian Masyarakat
Ristiana, Rina
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Electrical & Electronics Engineering Environmental Science Immunology & microbiology Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Social Sciences Other

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Designing optimal speed control with observer using integrated battery-electric vehicle (IBEV) model for energy efficiency Ristiana, Rina; Rohman, Arief Syaichu; Rijanto, Estiko; Purwadi, Agus; Hidayat, Egi; Machbub, Carmadi
Journal of Mechatronics, Electrical Power and Vehicular Technology Vol 9, No 2 (2018)
Publisher : Research Centre for Electrical Power and Mechatronics, Indonesian Istitutes of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3981.796 KB) | DOI: 10.14203/j.mev.2018.v9.89-100

Abstract

This paper develops an optimal speed control using a linear quadratic integral (LQI) control standard with/without an observer in the system based on an integrated battery-electric vehicle (IBEV) model. The IBEV model includes the dynamics of the electric motor, longitudinal vehicle, inverter, and battery. The IBEV model has one state variable of indirectly measured and unobservable, but the system is detectable. The objectives of this study were: (a) to create a speed control that gets the exact solution for a system with one indirect measurement and unobservable state variable; and (b) to create a speed control that has the potential to make a more efficient energy system. A full state feedback LQI controller without an observer is used as a benchmark. Two output feedback LQI controllers are designed; including one controller uses an order-4 observer and the other uses an order-5 observer. The order-4 observer does not include the battery state of charge as an observer state whereas the order-5 observer is designed by making all the state variable as the observer state and using the battery state of charge as an additional system output. An electric passenger minibus for public transport with 1500 kg weight was used as the vehicle model. Simulations were performed when the vehicle moves in a flat surface with the increased speed from stationary to 60 km/h and moves according to standard NEDC driving profile. The simulation results showed that both the output feedback LQI controllers provided similar speed performance as compared to the full state feedback LQI controller. However, the output feedback LQI controller with the order-5 observer consumed less energy than with the order-4 observer, which is about 10% for NEDC driving profile and 12% for a flat surface. It can be concluded that the LQI controller with order-5 observer gives better energy efficiency than the LQI controller with order-4 observer
Pemberdayaan Masyarakat melalui Pelatihan Budidaya Lebah Klanceng untuk Ketahanan Ekonomi dan Konservasi Lingkungan Arsyad, Mufid; Haqiqi, Nurul Azizah; Fajri, Muhammah Niki Faza Nur; Lestari, Restu; Ristiana, Rina; Putri, Leni Diyana; Febriani, Lia Putri; Rohmah, Siti Nur; Irawan, Piki Anderi; Nurrohman, Deni; Masri, Masri; Aprizal, Aprizal; Alensa, Rizki; Irawan, Sukma; Nugraha, Iqbal; Apriyanto, Nanang
Educommunity Jurnal Pengabdian Masyarakat Vol. 3 No. 2 (2025)
Publisher : CV. Edutechnium Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71365/ejpm.v3i2.90

Abstract

Stingless bees (Tetragonula laeviceps), commonly known as Klanceng honey bees, have significant ecological and economic value. Their role in pollination contributes to biodiversity conservation, while their honey has high market potential due to its medicinal properties. This community service program aims to introduce and develop sustainable stingless bee farming among local communities as an alternative source of income. The activities include theoretical and practical training on colony management, hive maintenance, honey extraction, and product marketing. Participants are also educated on the ecological benefits of stingless bee conservation to promote environmental awareness. The results of this program indicate a positive response from the community, with increased knowledge, skills, and motivation to engage in stingless beekeeping. By fostering sustainable beekeeping practices, this initiative is expected to enhance local economic resilience while contributing to environmental preservation.
DNA barcoding pada Familia Bovidae berdasarkan gen Co1 (Cytochrome C Oxydase Sub Unit 1) Ristiana, Rina; Rustam, Aswar; Zein, Moch. Syamsul Arifin; Zulkarnain, Zulkarnain
Filogeni: Jurnal Mahasiswa Biologi Vol 1 No 2 (2021): Mei-Agustus
Publisher : Program Studi Biologi Fakultas Sains dan Teknologi Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (392.475 KB) | DOI: 10.24252/filogeni.v1i2.23802

Abstract

DNA barcoding merupakan suatu teknik identifikasi spesies berbasis molekuler dengan menggunakan gen Cytochrome C Oxydase Subunit 1 (CO1). DNA barcoding terhadap famili Bovidae berguna dalam rangka identifikasi spesies, monitoring perdagangan daging ternak, penegakkan hukum, serta klarifikasi spesies dalam suatu produk pangan yang berasal dari hewan ternak. Penelitian ini bertujuan untuk mengetahui efektivitas gen CO1 sebagai DNA barcode dengan melihat  jarak genetik antar-spesies dan inter-spesies Bovidae dengan spesies outgrup serta kekerabatan spesies dalam konstruksi filogenetik. Analisis sekuen CO1 dilakukan terhadap tujuh spesies Bovidae dan dua spesies out grup. Data sekuen CO1 diperoleh dari NCBI (https://www.ncbi.nlm.nih.gov/) lalu dilakukan analisis jarak genetik dan filogenetik menggunakan metode neighbor-joining (NJ) pada software Moleculer Evolutionary Genetics Analysis (MEGA) versi 6. Hasil penelitian menunjukkan jarak genetik intra-spesies Bovidae berkisar antara 0,044-0,69% dengan jarak terendah terlihat pada spesies Bos taurus (0,044%) dan tertinggi pada spesies Bos javanicus (4,69%). Sedangkan jarak genetik inter-spesies berkisar antara 2,2-24,6% dengan jarak tertinggi ditunjukkan oleh Bos javanicus dan spesies outgrup yakni sebesar 24,6% (rata-rata ±2,2-0,05%). Sekuen gen CO1 pada spesies famili Bovidae menunjukkan adanya variasi yang tinggi antar-spesies namun rendah dalam spesies (intra-spesies). Oleh karena itu, gen CO1 efektif digunakan sebagai DNA barcode pada famili Bovidae.
Co-Authors agus Purwadi Alensa, Rizki Apriyanto, Nanang Aprizal Aprizal Arief Syaichu Rohman, Arief Syaichu Arsyad, Mufid Carmadi Machbub Estiko Rijanto Fajri, Muhammah Niki Faza Nur Febriani, Lia Putri Haqiqi, Nurul Azizah Hidayat, Egi Irawan, Piki Anderi Irawan, Sukma Lestari, Restu Masri Masri Moch. Syamsul Arifin Zein, Moch. Syamsul Arifin Nugraha, Iqbal Nurrohman, Deni Putri, Leni Diyana Rohmah, Siti Nur Rustam, Aswar Zulkarnain Zulkarnain