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All Journal Komunikasi Fisika Indonesia Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Jurnal Teknik Industri Terintegrasi (JUTIN) Jurnal Surya Teknika Jurnal Pengabdian Masyarakat Waradin BATOBO: Jurnal Pengabdian Kepada Masyarakat JES-TM Social and Community Service
Yolanda, Yogi
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Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Other

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Peningkatan Ketahanan Lingkungan Desa Batu Belah Melalui Penanaman Artocarpus integer sebagai Pencegah Banjir Sembiring, Maria Peratenta; Heltina, Desi; Irianty, Rozanna Sri; Fermi, Muhammad Iwan; Yolanda, Yogi; Suhendri, Suhendri
BATOBO: Jurnal Pengabdian Kepada Masyarakat Vol 3 No 1: BATOBO: Juni 2025
Publisher : Jurusan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/batobo.3.1.31-39

Abstract

Desa Batu Belah, Kecamatan Kampar, Riau, mengembangkan strategi pencegahan banjir berkelanjutan melalui penanaman Artocarpus integer (cempedak). Tanaman ini dipilih karena akarnya yang kuat dapat menyerap air dan mencegah erosi. Selain itu, cempedak juga berpotensi sebagai sumber ekonomi lokal melalui pengolahan produk makanan. Kegiatan ini dilakukan secara gotong royong, memperkuat kebersamaan masyarakat dan meningkatkan kesadaran lingkungan. Hasilnya adalah peningkatan ketahanan lingkungan dan potensi ekonomi masyarakat. Strategi ini menunjukkan bahwa penanaman Artocarpus integer dapat menjadi solusi efektif untuk mengurangi risiko banjir dan meningkatkan kualitas hidup masyarakat. Dengan demikian, desa ini menjadi model bagi pengembangan masyarakat yang berkelanjutan dan peduli lingkungan, serta meningkatkan keindahan dan keamanan lingkungan.
Workshop Penyusunan Portofolio untuk Peningkatan Kompetensi Pembelajaran Bagi Dosen Teknik Sipil UNRI Monica.MG, Intan; Lyona, Vinka; Saily, Randhi; Prakasa, Rizqy Ridho; Darfia, Novreta Ersyi; Yolanda, Yogi; Putra, Nanda Dwi; Harimardika, Musyaffa Rifqi
BATOBO: Jurnal Pengabdian Kepada Masyarakat Vol 3 No 1: BATOBO: Juni 2025
Publisher : Jurusan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/batobo.3.1.94-103

Abstract

Kualitas pembelajaran di pendidikan tinggi sangat dipengaruhi oleh perencanaan yang sistematis dan terdokumentasi dengan baik. Salah satu instrumen yang dapat digunakan untuk merencanakan dan merefleksikan proses pembelajaran adalah portofolio pembelajaran. Namun, sebagian besar dosen belum memahami bentuk dan manfaat portofolio tersebut. Kegiatan pengabdian ini dilakukan dalam bentuk workshop yang melibatkan dosen Teknik Sipil. Kegiatan meliputi sosialisasi konsep portofolio, pemberian contoh, serta pendampingan penyusunan portofolio masing-masing peserta. Efektivitas kegiatan diukur melalui pretest dan posttest. Data menunjukkan peningkatan skor pemahaman peserta setelah mengikuti workshop. Sebagian besar peserta mampu menyusun portofolio yang sesuai dengan prinsip perencanaan pembelajaran yang baik. Sebanyak 92,3% peserta mampu mendefinisikan portofolio dengan tepat setelah pelatihan, dibandingkan 15,4% sebelum pelatihan. Pemahaman terhadap komponen dan fungsi portofolio meningkat hingga 100%, serta kesiapan menyusun portofolio meningkat dari 30,8% menjadi 76,9%. Peningkatan hasil posttest menunjukkan bahwa workshop ini berkontribusi positif terhadap pemahaman dosen dalam menyusun portofolio. Respons peserta juga menunjukkan bahwa kegiatan ini relevan dengan kebutuhan peningkatan mutu pembelajaran. Kegiatan ini menunjukkan bahwa pelatihan portofolio dapat menjadi strategi efektif dalam meningkatkan kapasitas dosen, sekaligus mendukung praktik pembelajaran yang lebih terstruktur dan berkelanjutan.
Techno-Economic Analysis of DME Production from Indonesian Brown Coal: A Preliminary Plant Design Luthfi, Alif; Nugraha, Mohd Farhan; Ramadhani, Shafira Rachma; Legawati, Lisa; Yolanda, Yogi; Maarasyid, Cici; Zulfansyah, Zulfansyah
JURNAL SURYA TEKNIKA Vol. 12 No. 1 (2025): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v12i1.9331

Abstract

This article presents the preliminary plant design and techno-economic assesment of Dimethyl Ether (DME) production from coal. As the world’s third largest coal producer, Indonesia faces challenges in using low rank lignite due to its high moisture content, wgich limits direct combustion efficiency. The plant was designed to produce 210,000 tons of DME per year, supporting national effort to reduce LPG imports and improve energy security. The calculation include mass and energy balances, equipment sizing, and enviromental considerations suh as CO2 emissions management. Economic evaluation demonstrate project feasibility, with an internal rate of return of 24.28%, a payback period of 3.46 years, and a net present value of 39.60 million USD. Sensitivity analysis shows profitability is highly sensitive to DME price variations. Further research issyngas recommended to develop effective carbon capture strategies and evaluate lifecycle emissions to enhance DME production more enviromentally friendly and sustainable.
Pembuatan Sabun Cair dari Minyak Sawit di Desa Batu Belah Kabupaten Kampar Zuqni Meldha; Idral Amri; Zulfansyah Zulfansyah; Hari Rionaldo; Syamsu Herman; Nirwana Nirwana; Lisa Legawati; Salma Liska; Yogi Yolanda; Yola Bertilsya Hendri; Alltop Amri Ya Habib
Jurnal Pengabdian Masyarakat Waradin Vol. 5 No. 2 (2025): Jurnal Pengabdian Masyarakat Waradin
Publisher : Sekolah Tinggi Ilmu Ekonomi Pariwisata Indonesia Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56910/wrd.v5i2.643

Abstract

The demand for natural self-care products is rising as more people recognize the value of keeping healthy skin and protecting the environment. Cooking oil, which is a derivative of palm oil, is an ingredient that is easily found by people in Batu Belah Village, Kampar Regency. This material has great potential to be processed into value-added products such as liquid soap. This study focuses on the use of cooking oil as the primary ingredient for producing liquid soap, while also opening new economic opportunities for the village community. This initiative captured the interest of Batu Belah People.In an attempt to implement the technology, the community service team distribute the liquid soap to the neighborhood.
Artikel Review: Efektivitas Mikroorganisme untuk Pengomposan Tandan Kosong Sawit secara Berkelanjutan Legawati, Lisa; Maarasyid, Cici; Meldha, Zuqni; Liska, Salma; Yolanda, Yogi; Hendri, Yola Bertilsya; Ermal, Dini Aulia Sari; Elsa, Nesa Zafira
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 8 No. 3 (2025): July
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v8i3.47603

Abstract

Empty Fruit Bunches (EFB) of oil palm are the main solid waste generated by the palm oil industry, with an increasing volume and high lignocellulosic content that can affect the decomposition process. This article aims to review the effectiveness of various microorganisms as bioactivators in EFB composting based on experimental studies and recent literature. The review results indicate that using microbial consortia such as Trichoderma spp., cellulolytic bacteria, and local microorganisms (MOL) is more effective than single microorganisms in reducing the C/N ratio to levels approaching the compost quality standard (<20). Aerobic composting methods with proper aeration management and the addition of organic materials can also accelerate decomposition. Further research is recommended to examine the interactions among microorganisms within the consortia and to conduct application trials to validate the agronomic benefits of EFB compost sustainably. 
Pengembangan Katalis Water-Gas Shift: Perspektif dari Sistem Medium Temperature Shift (MTS) Liska, Salma; Sajida, Gita Nur; Legawati, Lisa; Suhendri, Suhendri; Meldha, Zuqni; Yolanda, Yogi; Hendri, Yola Bertilsya; Rusmana, Marcela Anandita
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 8 No. 3 (2025): July
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v8i3.48117

Abstract

The water-gas shift (WGS) reaction is a crucial process for increasing hydrogen (H₂) production by minimizing carbon monoxide (CO) content. It is widely applied in the petrochemical industry to reduce CO levels in syngas produced from hydrocarbon reforming. Conventionally, this reaction is conducted in two stages: high-temperature shift (HTS) and low-temperature shift (LTS). However, this approach presents both technical and economic limitations. To address these issues, catalysts capable of operating optimally at intermediate temperatures—referred to as medium-temperature shift (MTS)—have been developed. The scope of discussion in this article consists of catalyst development challenges such as sintering, deactivation, and side reactions. This review is intended to serve as a reference for the development of efficient WGS catalysts under MTS conditions, along with modification strategies aimed at enhancing their performance based on current research findings.
The effect of reaction time and oil-to-methanol ratio on the calorific value of biodiesel produced from chicken fat oil Habib, Alltop Amri Ya; Emrinaldi, Tengku; Yolanda, Yogi; Azis, Yelmida
Indonesian Physics Communication Vol 22, No 1 (2025)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jkfi.22.1.11-14

Abstract

The energy content of a fuel is represented by its calorific value. When biodiesel combusts in the presence of air or oxygen, the heat released during the combustion process is expressed as the calorific value. This study aims to analyze the effect of reaction time (60, 120, and 180 minutes) and the volume ratio of chicken fat oil-to-methanol (OM) (25:30 and 25:50) in the transesterification process on the calorific value of the produced biodiesel. The transesterification process was conducted using MgO as a catalyst under various reaction times and OM ratios. The produced biodiesel was then analyzed to determine its calorific value as a key fuel quality parameter. The results indicate that a longer reaction time and a higher OM volume ratio lead to an increase in the calorific value. The highest calorific value obtained in this study was 9952 kcal/kg, achieved at a reaction time of 180 minutes and an OM volume ratio of 25:50.
STRATEGIES FOR ENHANCING THE PERFORMANCE OF LI [NIXCOYMN1-X-Y] O2 CATHODE MATERIALS FOR LI-ION BATTERIES HENDRI, YOLA BERTILSYA; Heni Sugesti; Zuqni Meldha; Lisa Legawati; Salma Liska; Yogi Yolanda; Amun Amri
Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Vol. 7 No. 2 (2025): Literasi Artikel Penelitian Kimia
Publisher : Program Studi Kimia, Fakultas MIPA, Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/jc.v7i2.6193

Abstract

Abstract Li[NixCoyMn1-x-y]O2 layered oxides Cathode Materials are among the most widely studied cathode materials for lithium-ion batteries due to their high gravimetric and volumetric energy density compared to other type cathode materials. However, the practical deployment of Ni-rich NCM materials is hindered by severe degradation mechanisms, including cation-mixing, surface reconstruction, electrolyte reactivity, transition metal dissolution, and oxygen release, which compromise cycling stability and safety. This review systematically synthesizes recent progress in advanced modification strategies designed to mitigate degradation in Li[NixCoyMn1-x-y]O2 cathodes. The discussion is structured into four major approaches: (i) surface modification, which employs protective coatings to suppress interfacial reactions and stabilize the cathode–electrolyte interphase; (ii) elemental doping, which strengthens the lattice, reduces cation mixing, and inhibits oxygen evolution; (iii) single-crystal engineering, which eliminates grain-boundary failure and improves thermal stability; and (iv) concentration-gradient architectures, which alleviate internal stress and enhance the durability of Ni-rich cathodes. Empirical evidence demonstrates that these strategies not only extend cycle life but also provide mechanistic insights into the underlying degradation pathways. By consolidating findings from recent experimental, this review highlights the necessity of integrating structural, chemical, and morphological interventions to realize the full potential of Ni-rich NCM cathodes. The insights presented offer a framework for designing safer, higher-performance, and commercially scalable lithium-ion batteries. Abstrak Li[NixCoyMn1-x-y]O2 berbasis oksida berlapis merupakan salah satu material katoda yang paling banyak dikaji dalam pengembangan baterai litium-ion. Keunggulan utamanya terletak pada kerapatan energi gravimetri dan volumetri yang lebih tinggi dibandingkan dengan jenis katoda lain. Namun demikian, penerapan praktis material NCM kaya nikel masih menghadapi sejumlah kendala serius akibat berbagai mekanisme degradasi, antara lain pencampuran kation, rekonstruksi permukaan, reaktivitas dengan elektrolit, pelarutan logam transisi, serta pelepasan oksigen. Mekanisme-mekanisme tersebut secara langsung menurunkan stabilitas siklus dan tingkat keselamatan baterai.Ulasan ini menyajikan sintesis sistematis mengenai perkembangan mutakhir strategi modifikasi lanjutan yang dirancang untuk menekan degradasi pada katoda Li[NixCoyMn1-x-y]O2. Terdapat empat pendekatan utama yang dibahas, yaitu: (i) modifikasi permukaan, melalui penerapan lapisan pelindung guna menekan reaksi antarmuka dan menstabilkan lapisan katoda–elektrolit; (ii) doping unsur, yang berfungsi memperkuat struktur kisi, mengurangi pencampuran kation, serta menekan evolusi oksigen; (iii) rekayasa kristal tunggal, yang mengatasi kegagalan pada batas butir sekaligus meningkatkan stabilitas termal; dan (iv) arsitektur gradien konsentrasi, yang mampu meredam tegangan internal dan memperpanjang daya tahan katoda kaya nikel. Hasil-hasil empiris menunjukkan bahwa penerapan strategi tersebut tidak hanya memperpanjang umur pakai siklus, tetapi juga memperkaya pemahaman tentang mekanisme degradasi yang mendasari. Dengan mengintegrasikan temuan-temuan eksperimental terbaru, ulasan ini menegaskan pentingnya perpaduan intervensi struktural, kimia, dan morfologis untuk mengoptimalkan kinerja katoda NCM kaya nikel. Wawasan yang dihadirkan sekaligus menawarkan kerangka konseptual bagi pengembangan baterai litium-ion yang lebih aman, berkapasitas tinggi, dan memiliki prospek komersialisasi yang luas.
Enhancing Community Awareness Through Waste Bin Provision at Pangkalan Bunut Market to Achieve a Clean and Healthy Environment Legawati, Lisa; Yolanda, Yogi; Meldha, Zuqni; Sembiring, Maria Peratenta; Zulfansyah, Zulfansyah; Ermal, Dini Aulia Sari
Journal of Social and Community Service Vol. 4 No. 3 (2025): November 2025
Publisher : Faculty of Engineering University of Pahlawan Tuanku Tambusai

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

Abstract

Environmental awareness and concern for cleanliness remain common challenges, not only in urban areas but also in rural communities. In Pangkalan Bunut Village, the issue of poor waste management persists, largely due to limited community awareness and the lack of adequate waste disposal facilities. To address this problem, our Community Service Team implemented a program to provide waste bins in the Pangkalan Bunut Market. This initiative aimed to encourage proper waste disposal practices, improve environmental awareness, and promote a clean and healthy environment. The program produced several positive outcomes: (1) increasing community understanding of the importance of waste management and environmental care; (2) providing accessible waste bins at the market to support cleaner surroundings; and (3) fostering behavioral change, as residents became more aware of the importance of proper waste disposal. This initiative is expected to serve as a model for sustaining cleanliness and environmental health in Pangkalan Bunut Village.
Co-Authors Amun Amri Cici Maarasyid Desi Heltina Dini Aulia Sari Ermal Habib, Alltop Amri Ya Hari Rionaldo Hendri, Yola Bertilsya Heni Sugesti Idral Amri Lisa Legawati Luthfi, Alif Lyona, Vinka M. Iwan Fermi Maria Peratenta Sembiring MG, Intan Monica MUSYAFFA RIFQI HARIMARDIKA Nirwana Nirwana Novreta Ersyi Darfia Nugraha, Mohd Farhan Putra, Nanda Dwi Ramadhani, Shafira Rachma Randhi Saily Rizqy Ridho Prakasa Rozanna Sri Irianty Rusmana, Marcela Anandita Sajida, Gita Nur Salma Liska Suhendri Suhendri Syamsu Herman Tengku Emrinaldi Yelmida Azis Zafira, Nesa Zulfansyah Zulfansyah Zulfansyah Zulfansyah Zuqni Meldha