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All Journal JPP IPTEK (Jurnal Pengabdian dan Penerapan IPTEK) JURNAL PENDIDIKAN TAMBUSAI Jurnal Teknologi Bahan dan Barang Teknik Teknomekanik 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
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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The investigation of physical dan mechanical properties of Nipah-based particle board Hendri Nurdin; Waskito Waskito; Anna Niska Fauza; Batu Mahadi Siregar; Bagdaulet Kenzhaliyevich Kenzhaliyev
Teknomekanik Vol. 6 No. 2 (2023): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/teknomekanik.v6i2.25972

Abstract

The excessive use of wood as a raw material in furniture industries has raised environmental concerns that have attracted the attention of many individuals. Consequently, various innovations have been explored in developing alternative materials for the furniture industry. One promising resource that has the potential to be developed as a raw material for furniture applications is Nipah palm husk. Nipah palm husk is classified as an agricultural waste that is barely used within society and industries. Hence, in this study, Nipah palm husk will be utilized as the primary material to fabricate particle board by involving tapioca as an adhesive. This research aimed to investigate the effect of tapioca concentrations on water absorption, modulus elasticity, modulus of rupture, and screw-holding strength of the produced Nipah palm husk particleboard. The results of this study showed that the particle board produced with a 40% tapioca adhesive concentration exhibited the most favorable physical and mechanical properties with a water absorption rate of 25%, an elastic modulus of 21188.93 kg/cm2, a modulus of rupture of 55.53 kg/cm2, and a screw holding power of 7.53 kg. The findings indicated that Nipah-based particle board has the potential to be developed as an alternative for the furniture industry.
Study of the effective fraction of areca nut husk fibre composites based on mechanical properties Irfan Muhammad Akbar; Anna Niska Fauza; Zainal Abadi; Dieter Rahmadiawan
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 Muhamad Julianes Prasetyo; Rifelino Rifelino; Anna Niska Fauza
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.
Co-Authors Akbar, Irfan Muhammad Ambiyar, Ambiyar Andre Kurniawan Andre Kurniawan Andrian Saputra Arafat, Andril Arif Kartasasmita Atikah Ardi Bagdaulet Kenzhaliyevich Kenzhaliyev Batu Mahadi Siregar Dieter Rahmadiawan Fitrah Qalbina Hendri Nurdin Irfan Muhammad Akbar Irzal, Irzal Kenzhaliyev, Bagdaulet Kenzhaliyevich Mardiyati, Mardiyati Muhamad Julianes Prasetyo Nurdin Hendri Prayoga, Ongki Purwantono Purwantono Purwantono, Purwantono Putra, Randi Purnama Rahmadiawan, Dieter Ramadhan, Qadri Refdinal, Refdinal Refdinal, Refdinal Remon Lapisa Ressa Muhripah Novianti Rifelino Rifelino Risdiana, Fitrilawati Siregar, Batu Mahadi Steven, Steven Wanda Afnison Wasaludin, Norman Syakir, Waskito Waskito Waskito Waskito, Waskito Zainal Abadi Zainal Abadi