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All Journal JPP IPTEK (Jurnal Pengabdian dan Penerapan IPTEK) JURNAL PENDIDIKAN TAMBUSAI Jurnal Teknologi Bahan dan Barang Teknik Teknomekanik Automotive Experiences Jurnal Vokasi Mekanika Journal of Engineering Researcher and Lecturer Jurnal Ilmu dan Inovasi Fisika JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia
Fauza, Anna Niska
Department Of Mechanical Engineering, Faculty Of Engineering, Universitas Negeri Padang
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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Study of the effective fraction of areca nut husk fibre composites based on mechanical properties Akbar, Irfan Muhammad; Fauza, Anna Niska; Abadi, Zainal; Rahmadiawan, Dieter
Journal of Engineering Researcher and Lecturer Vol. 3 No. 1 (2024): Regular Issue
Publisher : Researcher and Lecturer Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58712/jerel.v3i1.126

Abstract

Areca nut husk fibers have the potential to be used as reinforcement in polymer composites as a substitute for synthetic fibres. In the manufacture of fibre composites, one of the important factors in determining the strength is the matrix to fibre ratio. This study aims to determine the effective ratio or fraction between areca nut husk fibre and orthophthalic polyester resin. Before using areca nut husk fibre, it was chemically treated so that only cellulose remained in the fibre. The areca nut husk fibre was processed into sheets. The composite was manufactured using the hand lay-up technique. Tensile and flexural tests were carried out to determine the mechanical properties. Based on the results of the tests conducted, there are differences in the mechanical properties of the composites. The tensile test results show that the 40% fibre fraction has the highest tensile strength and modulus values. On the other hand, in the flexure tests, the highest tensile strength and modulus values are found in the 30% fibre fraction.
Development and effectiveness of short video tutorials in basic turning learning to enhance students' cognitive ability Prasetyo, Muhamad Julianes; Rifelino, Rifelino; Fauza, Anna Niska
Journal of Engineering Researcher and Lecturer Vol. 3 No. 3 (2024): Regular Issue
Publisher : Researcher and Lecturer Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58712/jerel.v3i2.161

Abstract

This study aims to develop and evaluate the effectiveness of short tutorial videos in teaching the essential operation of lathe machines in mechanical engineering. Utilizing the ADDIE model (Analysis, Design, Development, Implementation, Evaluation), the research was conducted at SMK N 1 Sumatera Barat, involving 65 vocational school students. The short tutorial videos were designed to enhance students' comprehension and cognitive ability in lathe machine operations, addressing the challenges posed by traditional teaching methods. Data were collected through questionnaires and practical tests to assess students' understanding and skills. The findings revealed that the short tutorial videos significantly improved students' comprehension and cognitive ability, although variations in understanding levels were observed. Normality tests confirmed a normal data distribution, allowing for the use of paired sample t-tests, which indicated no significant difference between the Mechanical Engineering and Industrial Mechanical Engineering groups after using the tutorials. Validation by media and content experts demonstrated the high quality and relevance of the instructional material. This study underscores the importance of developing more interactive and adaptive learning media and highlights the need to explore further other factors influencing cognitive ability.
PENERAPAN ALAT PENCACAH LIMBAH SERAI WANGI DALAM UPAYA PENINGKATAN PRODUKTIVITAS MASYARAKAT DI NAGARI SIMAWANG Nurdin, Hendri; Rahmadiawan, Dieter; Fauza, Anna Niska; Sari, Delima Yanti; Fikri, M
Jurnal Vokasi Mekanika (VoMek) Vol 6 No 1 (2024): Jurnal Vokasi Mekanika
Publisher : Departemen Teknik Mesin Fakultas Teknik Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/vomek.v6i1.609

Abstract

Tanaman serai wangi merupakan komoditi perkebunan yang dapat menghasilkan minyak atsiri. Dalam proses penyulingan tanaman serai wangi untuk mendapatkan minyak atsiri. Setelah proses penyulingan yang pada akhirnya menghasilkan limbah serai wangi. Petani belum mampu mengatasi permasalahan limbah tersebut. Masyarakat melakukan perajangan limbah untuk campuran pakan ternak, menjadikannya pupuk kompos untuk tanaman, dijadikan bahan bakar dengan dibakar langsung sehingga berdampak terhadap lingkungan dan menimbulkan polusi udara. Permasalahan ini membutuhkan penyelesaian dengan metode pendekatan sebagai solusi. Penerapan teknologi berupa alat pencacah limbah serai wangi sebagai upaya dalam meningkatkan produktifitas masyarakat di Nagari Simawang. Kegiatan penerapan teknologi kepada kelompok masyarakat mitra dirancang dalam pelaksanaan Program Kemitraan Masyarakat. Kegiatan yang dilakukan mulai dari persiapan dan perencanaan sampai dengan evaluasi pelaksanaan. Keberhasil melakukan penerapan alat pencacah serai wangi yang efisien serta konstruktif dengan kapasitas alat mencapai 34 kg/jam. Efektifitas penerapan alat mencapai 95% dalam menghasilkan pencacahan. Penerapan teknologi ini dapat berdampak terhadap peningkatan kesejahteraan dan peningkatan pemberdayaan masyarakat dan membangun wawasan masyarakat. Implementasi Program Kemitraan Masyarakat dengan pengembangan teknologi tepat guna kepada masyarakat di Nagari Simawang dapat keberlanjutannya dan bersinergi di tengah masyarakat.
The influence of processing temperature on the mechanical properties of recycled PET fibers Fauza, Anna Niska; Qalbina, Fitrah; Nurdin, Hendri; Ambiyar, Ambiyar; Refdinal, Refdinal
Teknomekanik Vol. 6 No. 1 (2023): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (336.094 KB) | DOI: 10.24036/teknomekanik.v6i1.21472

Abstract

Study towards the recycling of PET waste has arisen in the last decades. One of the most widely used methods was the mechanical recycling process due to its simplicity and low cost of production. In this research, PET waste obtained from the disposable water gallon containers was used to produce recycled PET fibers for textile applications. The PET fibers were prepared using the extrusion technique by varying the processing temperatures, i.e., 200, 210, 220, 230, and 240°C. The diameter, FTIR analysis, XRD analysis, and mechanical properties of the PET fibers at various processing temperatures were studied. The results showed that the optimum processing temperature for preparing recycled PET fibers was 210°C with a diameter of 0.23 mm, a degree of crystallinity of 8.9%, a tensile strength of 70.4 MPa, and an elongation at break of 83.6%. In conclusion, PET waste shows a promising application to be processed as recycled PET fibers for textile applications.
Co-Authors Akbar, Irfan Muhammad Ambiyar, Ambiyar Andre Kurniawan Andre Kurniawan Andrian Saputra Arafat, Andril Arif Kartasasmita Atikah Ardi Delima Yanti Sari Dori Yuvenda Fikri, M Fitrah Qalbina Harmanto, Dani Irzal, Irzal Kenzhaliyev, Bagdaulet Kenzhaliyevich Mardiyati, Mardiyati Milana Milana Nabawi, Rahmat Azis Nurdin Hendri Permana, Kaesarion Rahman Prasetyo, Muhamad Julianes Prayoga, Ongki Purwantono Purwantono Purwantono, Purwantono Putra, Randi Purnama Rahmadiawan, Dieter Ramadhan, Qadri Refdinal, Refdinal Remon Lapisa Ressa Muhripah Novianti Rifelino Rifelino Risdiana, Fitrilawati Siregar, Batu Mahadi Steven Steven Wanda Afnison Wasaludin, Norman Syakir, Waskito Waskito, Waskito Zainal Abadi