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All Journal JIPSINDO (Jurnal Pendidikan Ilmu Pengetahuan Sosial Indonesia) Jurnal Riset Pendidikan Matematika FLYWHEEL : Jurnal Teknik Mesin Untirta JURNAL ENGGANO Jurnal Ilmiah Kebijakan Hukum Jurnal HAM Journals of Ners Community Manutech : Jurnal Teknologi Manufaktur Jurnal Pengabdian Masyarakat Bumi Raflesia Journal of System and Computer Engineering JTTM: Jurnal Terapan Teknik Mesin Integrated Science Education Journal JURNAL REKAYASA INFORMASI SWADHARMA (JRIS) Fish Scientiae : Jurnal Ilmu-Ilmu Perikanan dan Kelautan Journal of Applied Agricultural Science and Technology Dulang: Jurnal Pengabdian Kepada Masyarakat JATIMAS : Jurnal Pertanian dan Pengabdian Masyarakat Prosiding Seminar Nasional Inovasi Teknologi Terapan Jurnal Inovasi Teknologi Terapan MCSIJ (Marine, Coastal and Small Islands Journal) : Jurnal Tugas Akhir Mahasiswa Ilmu Kelautan
Yuliyanto Yuliyanto
Universitas Lambung Mangkurat
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Nursing Physics Social Sciences Transportation Other

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The Effect of Fiber Length on the Strength of Composites as Boat Body Materials Pratika, Anggun; Yuliyanto, Yuliyanto; Juanda, Juanda
Integrated Science Education Journal Vol 7 No 1 (2026): January
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/isej.v7i1.2456

Abstract

Purpose of the study: This study investigates the effect of coconut fiber length on the mechanical performance of polyester-based composite materials intended as an alternative body material for small boats, addressing the growing demand for sustainable and locally sourced marine materials. Methodology: An experimental research design was employed using coconut fiber reinforcements with lengths of 10 mm, 30 mm, and 50 mm at a fixed fiber–resin ratio of 5%:95%. Composite specimens were fabricated using the hand lay-up method, reflecting practical production conditions commonly used in small-boat construction. Mechanical characterization was conducted using flexural strength testing in accordance with ASTM D790-02 and impact strength testing in accordance with ASTM E-23, using a Zwick Roell Z020 universal testing machine. Main Findings: The results demonstrate a clear positive correlation between fiber length and mechanical strength, with longer fibers providing more effective stress transfer and energy absorption within the composite matrix. The composite reinforced with 50 mm of coconut fiber exhibited the highest performance, achieving a flexural strength of 63.4 MPa and an impact strength of 45.42 kJ/m², both of which meet the mechanical requirements for small-boat materials set by the Indonesian Classification Bureau. Novelty/Originality of this study: Optimization of coconut fiber length for marine-grade polyester composites, offering empirical evidence that locally available natural fibers can meet regulatory standards for small vessel applications. This research advances eco-friendly composite technology and presents coconut fiber–reinforced polyester as a viable, sustainable alternative to conventional wood-based boat materials.
MANFAAT TABEL DATA USAHATANI BAGI PETANI DI KELURAHAN BLABAK, KECAMATAN PESANTREN, KOTA KEDIRI Yuliarsha Sidhi, Eko; Lisanty, Nina; Yuliyanto, Yuliyanto; Fahas, Exzanidan
Jurnal Pengabdian Masyarakat Bumi Rafflesia Vol. 5 No. 2 (2022): Jurnal Pengabdian Kepada Masyarakat Bumi Raflesia
Publisher : Universitas Muhammadiyah Bengkulu

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Abstract

Kegiatan ini muncul salah satunya, dikarenakan antara lain akibat dari kurangnya pengetahuan dan ketrampilan petani dalam mencatat data kegiatan usaha taninya, sehingga menyebabkan petani sendiri mengalami kesulitan di dalam membuat perencanaan usahataninya, yang akibatnya hasil produksi dan pendapatan usaha taninya tidak sesuai harapan. Di samping itu, apabila ada pihak-pihak lain baik instansi terkait maupun pihak akademisi juga akan memgalami kesulitan untuk memperoleh data yg baik dan benar seperti di Kelurahan Blabak, Kecamatan Pesantren, Kota Kediri. Oleh karena itu harus ada solusi atau jalan keluar. Tentu saja dalam kegiatan ini petani membutuhkan pendampingan dan bimbingan untuk mengatasi hal tersebut di atas. Sekaligus walau dalam suasana pandemi covid-19 kegiatan ini diharapkan dapat mendukung program pemerintah dalam penguatan ketahanan pangan daerah berdasarkan pada potensi dan keunggulannya. Kegiatan pelatihan dan pendampingan diberikan kepada lima belas petani sebagai perwakilan dari kelompok tani di area. Tim pelatih adalah tidak hanya tenaga pendidik dan mahasiswa di perguruan tinggi, namun juga merupakan bagian penting dari penyuluh pertanian di area. Kegiatan pelatihan dan pendampingan berdampak positif terhadap peningkatan pengetahuan dan keterampilan petani setempat dalam melakukan pencatatan kegiatan usahatani mereka dalam bentuk Tabel Data Usaha tani. Kata Kunci: Tabel, data, usaha tani, perencanaan, pencatatan.
PENGARUH PANJANG SERAT DAN FRAKSI VOLUME TERHADAP SIFAT MEKANIK KOMPOSIT BERPENGUAT SERAT PANDAN DURI Nurdiansyah, Muhammad; Yuliyanto, Yuliyanto; Sukanto, Sukanto
Prosiding Seminar Nasional Inovasi Teknologi Terapan Vol. 2 No. 01 (2022): Prosiding Seminar Nasional Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

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Abstract

The development of polymer composite materials using natural fibers as a reinforcing medium is something that is necessary because it has many advantages. The study aimed to find out the values of tensile strength, modulus elasticity and optimum bending strength against fiber lengths of 60 mm, 80 mm, 100 mm and volume fractions of 5%, 10% and 15%. The highest tensile voltage is found at a fiber length of 100 mm with a fiber volume fraction of 15% which is 31.3 MPa,while the modulus elasticity of the highest tensile strength is found at a fiber length of 100 mm with a 15% seat volume fraction of 7150 Mpa. For the highest bending strength is found at a fiber length of 100 mm with a fiber volume fraction of 15% which is 66.8 MPa. And modulus values of strong elasticity bending with a fiber length of 100 mm with a fiber volume fraction of 15% 11500 MPa.
REKOMENDASI PERBAIKAN UI/UX PADA APLIKASI SHOPEEFOOD DENGAN ANALISIS USABILITY DAN METODE DESIGN THINKING Yuliyanto, Yuliyanto; Wanda, Sulistianto Sutrisno
JRIS : Jurnal Rekayasa Informasi Swadharma Vol 6, No 1 (2026): JURNAL JRIS EDISI JANUARI 2026
Publisher : Institut Teknologi dan Bisnis (ITB) Swadharma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56486/jris.vol6no1.1243

Abstract

The application of information and communication technology in managing digital-based services has become a primary need. One of the rapidly growing sectors of technology use is mobile app-based food ordering services. ShopeeFood, one of the popular food ordering platforms in Indonesia, makes it easy for users to choose and order food from various restaurants on their smartphones. The problems currently faced are less intuitive interfaces, a less-than-optimal user experience, and unclear information, which have the potential to affect user satisfaction. This study aims to establish a relationship between the Usability (Learnability, Efficiency, Memorability, Errors, Satisfaction) construct X1 and the Design Thinking Method (Emphatize, Define, Ideate, Prototype, Test) construct X2 as independent variables and UI/UX (Strategy, Scope, Structure, Framework, Surface) construct Y as dependent variables. Using a quantitative approach, online questionnaires with 15 statements were distributed; 100 responses were obtained and analyzed using SmartPLS, including the Patch Coefficient Test, Validity Test, Reliability Test, and Inner Model. The results indicate that the independent variables, Usability (X1) and Design Thinking (X2), simultaneously have a strong influence on the dependent variable, the UI/UX construct (Y). The Usability and Design Thinking variables are highly recommended for creating UI/UX designs for the Shopeefood application.Penerapan teknologi informasi dan komunikasi dalam pengelolaan layanan berbasis digital telah menjadi kebutuhan utama. Salah satu sektor yang berkembang pesat dalam pemanfaatan teknologi adalah layanan pemesanan makanan berbasis aplikasi mobile. ShopeeFood, sebagai salah satu platform pemesanan makanan yang populer di Indonesia, memberikan kemudahan bagi pengguna untuk memilih dan memesan makanan dari berbagai restoran hanya melalui smartphone mereka. Permasalahan yang saat ini dihadapi yaitu antarmuka yang kurang intuitif, pengalaman pengguna yang kurang optimal, dan ketidak jelasan informasi, yang berpotensi mempengaruhi tingkat kepuasan pengguna, Penelitian ini bertujuan untuk membangun keterhubungan antara Usability (Learnability, Efficiency, Memorability, Errors, Satisfaction) konstruk X1 dan  Metode Design Thinking (Emphatize, Define, Ideate, Prototype, Test) konstruk X2 sebagai variable independen serta UI/UX (Strategi, Cakupan, Struktur, Kerangka, Permukaan) konstruk Y sebagai variabel dependen. Menggunakan pendekatan kuantitatif, penyebaran kuesioner secara online dengan 15 pernyataan diperoleh 100 data  dan dianalisis menggunakan SmartPLS meliputi  Uji Patch Coefisient, Uji Validitas, Uji Reliabilitas dan Inner Model. Hasilnya menyatakan bahwa variable independen konstruk Usability (X1) dan Design Thinking (X2) secara bersama sama berpengaruh yang kuat terhadap vaeriabel dependen konstruk UI/UX (Y), artinya faktor variabel Usability dan faktor Design Thinking sangat direkomendasikan dalam membuat rancangan design interface pada aplikasi shopeefood dengan menggunakan UI/UX
Analisis Kekuatan Lentur Komposit Berbasis Serat Daun Alam sebagai Alternatif Material Bilah Turbin Dwi Ramadina, Novia Arista; Yuliyanto, Yuliyanto; Subhan, Muhammad
Jurnal Inovasi Teknologi Terapan Vol. 4 No. 1 (2026): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v4i1.393

Abstract

Wind energy is one of the most promising renewable energy sources to support the transition toward sustainable energy systems, making the selection of strong and environmentally friendly wind turbine blade materials essential. This study aims to assess the potential of natural fibers as composite reinforcement, with a particular focus on flexural performance. Three types of natural fibers were compared: ijuk fiber (Arenga pinnata), pineapple leaf fiber, and corn husk fiber. Composite specimens were produced using polyester resin as the matrix with a 5% fiber volume fraction (95:5 ratio), and all fibers were pretreated through two hours of alkaline immersion. Test samples were fabricated following ASTM D790 standards with dimensions of 150 × 12.5 × 3 mm and evaluated using a Zwick Roell Z020 universal testing machine at the Materials Laboratory of Politeknik Manufaktur Negeri Bangka Belitung. The results revealed that ijuk fiber–reinforced composites achieved the highest average flexural strength of 57.3 MPa, followed by PALF at 47.5 MPa, while corn husk fiber produced the lowest value at 29.33 MPa. One-way ANOVA confirmed significant differences among the three fiber groups (p < 0.05). Overall, ijuk fiber demonstrated the greatest potential as a sustainable and high-performing reinforcement material for composite applications.
Co-Authors Abda Abda Adha, Adha Adi Pratama, Adi Afriadi, Achmad Afriadi, Muhammad Ahmad Gunadi, Ahmad Aiwa, Toto Akbar Rafsanjani, Alfarobbi Al Aziz, Putra Habib Ambarwati, Indah Widya Amriyeny, Ulya Fajri Anjani, Arrum Puspita Aprilia, Zahra Dhiva Arisha, Andriansyah Oktafiandi Arliansyah, Arul Armin, Andre Hasnuryadi Baharuddin Baharuddin Baharuddin Baharuddin Boy Rollastin, Boy Rollastin Chamro', Wardatul Dafiuddin Salim Dafri, Nastiar Dharta, Yuli Dwi Ramadina, Novia Arista Edy Kustiani Eko Noer Kristiyanto, Eko Noer Eko Yudo Eko Yuliarsha Sidhi Ergiantoro, Anugerah Fadhian, Muhammad Filo Fahas, Exzanidan Fathur Rohman, Fathur Feriadi, Indra Habib Al Aziz, Putra Hakim, Zikrul Harwadi, Harwadi Hasdiansah, Hasdiansah Husman Husman Ilham Ary Wahyudie Imran, Taufik Jailani Jailani Josi, Ahmad Juanda Juanda Junaidi Junaidi Kon Phin, Lioe Kurniawan, Ade Dwi Kusuma, Rian Laily Muharani Lioe, Kon Phin Marzuki, Slamet Masdani, Masdani Muhaimin Muhaimin Muhammad Faisal Amin Muhammad Subhan Muhammad Syahdan muharram, Muhammad Munawirah, Munawirah Mustopa Mustopa Nina Lisanty Novizal Novizal, Novizal Nugraheni Hadiyanti Nurcahya, Dian Nurcahya Nurdiansyah, Muhammad Nursalam Nursalam Oktoviandi, Oktoviandi Oktriadi, Yudi Parulian Silalahi Permana Liu, Marcell Candra Pranata, Yogi Pratika, Anggun Pristiansyah, Pristiansyah Ramli Ramli Rangga Pratama, Rangga Pratama Razqi, Fadilla Muhamad Robert Napitupulu Rollastin, Boy Sahibu, Supriadi Saputra, Aprianor Teguh Setiawan, Iwan Dwi Simangunsong, Kristian Jubatner Somawardi Somawardi Subarkah, Imam SUBHAN, MUHAMAD Sugianto Sugianto Sujatmiko Sujatmiko Sukanto Sukanto Suzen, Zaldy Sirwansyah Sylvia Madusari Tony, Frans umah, khoiroh Ventani, Embun Wahyudie, Illham Ary Wanda, Sulistianto Sutrisno Wibowo, Willy Zaldy Kurniawan Zulfan Yus Andi Zulfitriyanto, Zulfitriyanto