Garuda - Garba Rujukan Digital

p-Index From 2021 - 2026

5.847

P-Index

This Author published in this journals

All Journal INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Communications in Science and Technology Jurnal Sains dan Teknologi: Jurnal Keilmuan dan Aplikasi Teknologi Industri JURNAL PENDIDIKAN TAMBUSAI JUPE : Jurnal Pendidikan Mandala Community Engagement and Emergence Journal (CEEJ) MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat BERNAS: Jurnal Pengabdian Kepada Masyarakat Teknomekanik EDUTECH : Jurnal Inovasi Pendidikan Berbantuan Teknologi Jurnal Aerasi Jurnal Vokasi Mekanika Al-DYAS : Jurnal Inovasi dan Pengabdian kepada Masyarakat Journal of Engineering Researcher and Lecturer Ranah Research : Journal of Multidisciplinary Research and Development Journal of Multidisciplinary Science: MIKAILALSYS JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia

Arafat, Andril

Universitas Negeri Padang

Author-ID : 2568198

Religion Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Dentistry Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Neuroscience Nursing Physics Public Health Social Sciences Transportation Veterinary Other

Published : 46 Documents Claim Missing Document

Claim Missing Document

Articles

1 2 3 4 5

INOVASI TEKNOLOGI PERTANIAN MELALUI MESIN PERONTOK BIJI JAGUNG DI KENAGARIAN PARIT Budi Syahri; Andril Arafat; Mulianti
BERNAS: Jurnal Pengabdian Kepada Masyarakat Vol. 4 No. 1 (2023)
Publisher : Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/jb.v4i1.3912

Kegiatan Pengabdian Masyarakat ini memiliki tujuan untuk membuat masayarakat dari kelompok tani jagung KWT Bunda Ramai sejahtera meningkatkan perekonomiannya dan pengolahan jagung kelompok tani pasca dilakukannya panen jagung. Adanya kegiatan ini memberikan ilmu dan pengetahuan baru bagi kelompok tani dalam proses perontokan biji jangung dari tongkol jagung melalui sebuah teknologi dalam bidang pertanian. Pada kegiatan ini, untuk metode penerapan ipteks yang dapat dilakukan adalah dengan memberikan sebuah teori pengantar, demonstrasi, praktek, serta aplikasinya. Kegiatan teori pengantar ini bersifat aplikatif (penerapan) yaitu dengan memperkenalkan alat yang digunakan, bagaimana cara penggunaan alat tersebut, apa fungsi alatnya, serta aplikasi yang akan digunakan di lapangan. Kebermanfaatan teknologi diukur melalui penyebaran kuisioner kepada kelompok tani pengguna mesin perontok biji jagung. Hasil dari pelaksanaan kegiatan PkM bermanfaat secara signifikan bagi para petani dari proses kerja para petani dalam melakukan perontokan biji jagung dari tongkol jagung. Kepuasan petani terhadap kegiatan PkM ini terhadap teknologi yang ditawarkan termasuk pada kategori tingkat tinggi. Efektifitas dari inovasi teknologi pertanian dengan mesin perontok biji jagung yang telah diberikan kepada petani jagung memiliki nilai sangat tinggi karena mesin ini memiliki konsep perontokan yang dilakukan secara continiu.

Analisis Karakteristik Reflektivitas Bioplastik Berbahan PVA/CNF/UG Sebagai Kemasan Produk Anti UV Prayoga, Ongki; Lapisa, Remon; Arafat, Andril; Niska Fauza, Anna
JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia Vol. 2 No. 4 (2024): JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtpvi.v2i4.230

Penambahan Uncaria Gambir meningkatkan kemampuan bioplastik dalam menghalangi sinar ultraviolet, dengan transmitansi pada panjang gelombang 200, 250, 300, 350, dan 400 nm berkurang dari 23.02%, 21.27%, 24.49%, 20.63%, dan 23.92% menjadi 17.77%, 14.26%, 15.29%, 10.96%, dan 7.75%. Sampel PVA menunjukkan nilai reflectance UV-A 23.01%, UV-B 24.79%, dan UV-C 28.00%. Penambahan Cellulose nanofiber menurunkan nilai UV-C menjadi 24.00%. Dengan penambahan Uncaria Gambir, reflectance UV-A menurun signifikan 7.83% (1 Wt %), 6.79% (0.75 Wt %), 0.58% (0.5 Wt %), 0.60% (0.25 Wt %), dan 1.47% tanpa Uncaria Gambir. Absorbansi UV-C adalah 0.6195 A (PVA) dan 0.6355 A (PVA/CNF). Tanin dan katekin dalam Uncaria Gambir menurunkan transmitansi dengan menyerap cahaya. Warna coklat kehitaman disebabkan oleh pigmen antosianin dan flavonoid, sesuai dengan penelitian sebelumnya, dengan hasil diatas bioplastik ini cukup memiliki kekuatan dan ketahanan sebagai bioplastik pengalang UV yang mumpuni. The addition of Uncaria Gambir enhances the ability of bioplastics to block ultraviolet rays, with transmittance at wavelengths of 200, 250, 300, 350, and 400 nm decreasing from 23.02%, 21.27%, 24.49%, 20.63%, and 23.92% to 17.77%, 14.26%, 15.29%, 10.96%, and 7.75%, respectively. The PVA sample showed UV-A reflectance values of 23.01%, UV-B 24.79%, and UV-C 28.00%. The addition of cellulose nanofiber reduced the UV-C reflectance to 24.00%. With the addition of Uncaria Gambir, UV-A reflectance significantly decreased: 7.83% (1 Wt %), 6.79% (0.75 Wt %), 0.58% (0.5 Wt %), 0.60% (0.25 Wt %), and 1.47% without Uncaria Gambir. The tannins and catechins in Uncaria Gambir reduce transmittance by absorbing light. The dark brown color is caused by anthocyanin and flavonoid pigments, consistent with previous studies, With the above results, it is hoped that it can produce bioplastics that have strength and durability as qualified UV pengalang bioplastics.

Role of Gd addition on machinability of Al-15%Mg2Si in-situ composite during dry turning Nanda, Is Prima; Ghandvar, Hamidreza; Idris, Mohd Hasbullah; Hanif, Auliya; Arafat, Andril
Communications in Science and Technology Vol 5 No 2 (2020)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.5.2.2020.186

Recently, Al-Mg2Si in-situ composites have achieved considerable attention due to their excellent physical and mechanical properties. In fact, there are some limitations of knowledge regarding the machinability characteristics of these composites - particularly when being inoculated with rare earth additions. This study in turn aimed to investigate the influence of machining parameters as well as Gd addition on the machinability of Al-15%Mg2Si composite. To examine the effect of modifier (1.0 wt. % Gd) and machining parameters (feed rate, cutting speed), microstructural evolution, surface roughness (Ra) and cutting force (Fc) were evaluated during dry turning. The results revealed that Gd addition as modifier element led to better surface roughness and higher cutting force owning to the modification of Mg2Si particle structure as well as the formation of Gd intermetallic compounds.

Pengaruh Massa Weight Roller terhadap Keausan Material dan Akselerasi Motor N-Max Ghozali, Rahmatul; Putra, Randi Purnama; Abadi, Zainal; Arafat, Andril
Al-DYAS Vol 3 No 1 (2024): FEBRUARI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/aldyas.v3i1.2754

The Nmax motorbike roller basically consists of 6 units which function to maintain and regulate motor acceleration found in the Roller Housing in the Continuously Variable Transmission (CVT) section which allows friction and wear to occur on the roller material. Acceleration is the level of acceleration that occurs in an object at a certain time, while material wear is the mechanical property of an object to accept loads, power and energy without causing damage. This research was carried out using a Tribometer test tool and logger pro analysis software. The results obtained show that material wear increases with increasing RPM. At 500 rpm, standard roller wear ranges from 0.107% to 0.346%, while at 1400 rpm, wear increases to range from 0.323% to 0.938%. The acceleration test results show that the standard roller with a mass of 13 grams has the lowest acceleration performance, with the lowest value occurring in test II at 1.26 m/s². Meanwhile, the 9 gram roller has the highest average acceleration of 4.82 m/s².

Analisis Pembebanan Statis Komponen Crossbar Clinker Cooler dengan Variasi Beban Horizontal terhadap Lubang Pasak Akbar, M. William; Arafat, Andril; Sari, Delima Yanti; Abadi, Zainal
Al-DYAS Vol 3 No 1 (2024): FEBRUARI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/aldyas.v3i1.2773

A clinker cooler is a very important piece of equipment in the cement industry because it functions to cool the slag or clinker that comes out of the kiln. In the cement industry, the processed clinker is first heated in a rotary kiln at °C and then lowered to temperature again. Next, the crossbar hammer crusher driven by the drive plate crushes the clinker. Clinker is transferred from the cooler inlet to the cooler outlet by this device. The performance of the main clinker cooler due to small errors can cause the kiln to stop working or disrupt other operations, such as in the mile finish area. In certain cases, cement production was disrupted due to a break in the crossbar component in the clinker cooler using the tested software Ansys Workbench 2020. It is hoped that the data from this simulation can be used as a benchmark between the results of the simulation, it can be used as a benchmark between the results of the best modified design for increasing crossbar durability through statistical loading tests with the FEA method.

Effectiveness of case method learning to optimise students' understanding of industrial mechanical machinery science Putra, Rendy Dwi; Waskito; Arafat, Andril; García, Juan Luis Cabanillas; Ayasrah, Firas Tayseer Mohammad; Fortuna, Aprilla
Journal of Engineering Researcher and Lecturer Vol. 3 No. 2 (2024): Regular Issue
Publisher : Researcher and Lecturer Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58712/jerel.v3i2.144

Education has a central role in preparing individuals for the complexities of the modern world of work. Particularly in the context of education in Vocational High Schools, developing students' competencies in collaboration, creativity, and problem-solving is essential. This study explores the effectiveness of the case-based learning method in improving students' understanding of industrial mechanics. The study used a quasi-experiment design with control and experimental groups. The statistical analysis results showed that the case method was more effective in improving students' cognitive mastery than the conventional lecture method. Students who participated in case method learning showed significant improvement in the post-intervention test, demonstrating the superiority of this method in supporting a more effective learning process and preparing students for practical challenges in the field. In conclusion, the case method increases students' participation and interactivity in the learning process and deepens their understanding of technical concepts in industrial mechanics. This research provides a solid basis for implementing more effective and relevant learning methods in preparing vocational students for the increasingly complex needs of the world of work.

Optimization of Waste Cooking Oil’s FFA as Biodiesel Feedstock Primandari, Sri Rizki Putri; Arafat, Andril; Veny, Harumi
Teknomekanik Vol. 4 No. 1 (2021): Regular Issue
Publisher : Universitas Negeri Padang

Waste cooking oil has high Free Fatty Acid (FFA). It affected on decreasing a biodiesel production. FFA reduction is one of important processes in biodiesel production from waste cooking oil. Thus, this study aimed to examine the optimum condition in FFA reduction. The process is assisted by using ultrasonic irradiation on acid esterification. Variables of the process are acid concentration, molar ratio of methanol and oil, and irradiation time. Meanwhile temperature irradiation on 45oC is a control variable. Process optimization is conducted by Response Surface Methodology (RSM) with Central Composite Design (CCD). The optimum conditions of response were 7.22:1 (methanol to oil molar ratio), 0.92% wt H2SO4, 26.04 minutes (irradiation time), and 45oC (irradiation temperature). Ultrasonic system reduced FFA significantly compared to conventional method.

Analysis of Tensile Strength of Citronella (Cymbopogon Nardus) Fiber Reinforced Composite Materials Ardi, Julio Lukmanul; Nurdin, Hendri; Arafat, Andril; Primandani, Sri Rizki Putri
Teknomekanik Vol. 4 No. 2 (2021): Regular Issue
Publisher : Universitas Negeri Padang

The use of synthetic fibers in composite materials has a negative impact on the environment. One way to reduce this impact is to replace synthetic fibers with natural fibers. A natural fiber that has the potential as a mixed material in the manufacture of composite materials is citronella (Cymbopogon nardus) fiber. This study aims to determine the effect of volume fractions 40%, 50%, 60%, and 70% of citronella fiber with polyester resin matrix BQTN 157 on tensile strength. The process of making composites used the hand lay-up method. The specimen was formed according to the ASTM D3039 standard and the tensile strength of the specimen was tested by using a Universal Testing Machine (UTM). From the results of the study, the maximum tensile strength was found in the fiber volume fraction 70% of 77.35 MPa, the strain is 6.57%, and the modulus of elasticity is 1.177 GPa. This study indicates that fiber volume fraction affects the tensile strength of composite materials. Hence, the manufacture of composite materials which have good strength is influenced by many things such as raw materials, matrices, mixture composition, and methods.

Peningkatan Efektivitas Penanganan Jagung Pasca Panen Melalui Inovasi Mesin Pemipil Biji Jagung Bagi Kelompok Tani Antokan Sutra Di Kabupaten Agam Arafat, Andril; Haq, Syaiful; Media, Afriza; Syahri, Budi; Arfianti, Fina
Community Engagement and Emergence Journal (CEEJ) Vol. 5 No. 3 (2024): Community Engagement & Emergence Journal (CEEJ)
Publisher : Yayasan Riset dan Pengembangan Intelektual

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37385/ceej.v5i3.6396

Kegiatan pengabdian kepada masyarakat ini bertujuan untuk meningkatkan efektivitas penanganan jagung pasca panen melalui inovasi mesin pemipil biji jagung bagi Kelompok Tani Antokan Sutra di Kabupaten Agam. Proses pemipilan jagung secara manual yang selama ini dilakukan memerlukan waktu yang lama dan tenaga kerja yang intensif, sehingga menghambat produktivitas dan efisiensi petani dalam pengelolaan hasil panen. Mesin pemipil biji jagung yang diperkenalkan dalam kegiatan ini dirancang dengan teknologi sederhana namun efektif, sehingga mudah dioperasikan oleh petani. Metode yang digunakan meliputi tahap identifikasi kebutuhan kelompok tani, pelatihan penggunaan mesin, dan pendampingan teknis dalam operasional mesin. Hasil kegiatan menunjukkan bahwa penggunaan mesin pemipil biji jagung berhasil mengurangi waktu pemipilan hingga 50% dibandingkan dengan metode manual, serta meningkatkan kualitas biji jagung yang dihasilkan. Dampak dari inovasi ini tidak hanya pada peningkatan efisiensi kerja namun juga mendorong peningkatan pendapatan kelompok tani melalui pengelolaan waktu yang lebih baik dan hasil panen yang lebih optimal. Diharapkan dengan adanya mesin ini, produktivitas dan kesejahteraan petani dapat semakin meningkat, serta dapat menjadi model pengembangan teknologi pasca panen di daerah lain.

Pengembangan Perangkat Pembelajaran Dengan Menggunakan Model Addie Pada Mata Pelajaran Teknik Mesin Bubut Kelas XI Teknik Pemesinan Zikri, Muhammad; Rifelino, Rifelino; Rahim, Bulkia; Arafat, Andril
Jurnal Pendidikan Tambusai Vol. 9 No. 1 (2025)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jptam.v9i1.25352

Penelitian ini dilatarbelakangi oleh adanya perubahan pembelajaran. Dari sebelumnya menggunakan perangkat pembelajaran berupa Rencana Pelaksanaan Pembelajaran (RPP) menjadi Modul Pembelajaran Kurikulum Mandiri. Pendidik perlu menyiapkan perangkat pembelajaran agar tercapainya proses pembelajaran yang baik. SMK Negeri 1 Sumatera Barat membutuhkan perangkat pembelajaran berupa Modul Pembelajaran Kurikulum Mandiri. Oleh karena itu, untuk mengatasi permasalahan tersebut, peneliti mengembangkan perangkat pembelajaran berupa Modul Pembelajaran Kurikulum Mandiri Mata Kuliah Teknik Pemesinan Bubut untuk Kelas XI SMK Negeri 1 Sumatera Barat. Tahapan pengembangan model ADDIE yang digunakan dalam penelitian ini adalah Analisis, Desain, Pengembangan, Implementasi, dan Evaluasi, yang dikenal dengan penelitian Study and Development (R&D). Alat penilaian yang digunakan adalah lembar validasi dan lembar praktikalitas. Validasi Modul Pembelajaran memperoleh nilai rata-rata keseluruhan sebesar 4,5 dengan klasifikasi “Sangat Layak”. Kualitas praktikalitas Modul Pembelajaran memperoleh kriteria sangat praktis yang ditunjukkan dengan nilai keseluruhan sebesar 4,4 dengan klasifikasi “Sangat Praktis”. Dari informasi skor keseluruhan yang terkumpul, dapat disimpulkan bahwa produk Modul Ajar Teknik Pemesinan Bubut Sekolah Menengah Kejuruan Kelas XI layak digunakan dalam proses pembelajaran.

Co-Authors - Primawati Adam Mandra Suwandi Addha Ilham Afriza Media Ahmad Sabirin Akbar, M. William Aldi Firmanto Ambiyar, Ambiyar Andre Kurniawan Andrian Saputra Anggara, Diki Ardi, Julio Lukmanul Arfianti, Fina Arwizet Arwizet, Arwizet Arwizet K. Ayasrah, Firas Tayseer Mohammad Budi Syahri Bulkia Rahim Daffa Raihan Senthot Delima Yanti Sari Dido Febriananda Nosa Durain Parmanoan Eko Indrawan Fadhilah Fanny Fadillah Ramadhan Farhan Habibie Fauza, Anna Niska Fauzan Azima Febri Prasetya Firmansyah, Gusri Fortuna, Aprilla García, Juan Luis Cabanillas Ghandvar, Hamidreza Ghozali, Rahmatul Habibie, Farhan Hanif, Auliya Haq, Syaiful Hendri Sawir Idris, Mohd Hasbullah Ilham Hidayathullah Intan Amita Waluya Irzal Irzal Irzal, Irzal Is Prima Nanda Ismail, Havis Jasman Jasman Jasman Jimi Afrinaldi Joko Suprianto Junil Adri M. Nasyarudin Latif Mega Oktaviani Muhammad Abdul Affan Muhammad Rizky Muhammad Zikri Mulianti Mulianti Nabawi, Rahmat Azis Nanda, Is Prima Nelvi Erizon Nizwardi Jalinus Nofri Helmi, Nofri Nur Ichsan Abdillah Nurdin Hendri Nurfajri Nurfajri Nurfajri Nurfajri, Nurfajri Nurfitri Rahmi Sari Pratama, Rheda Prayoga, Ongki Primandani, Sri Rizki Putri Putra, Randi Purnama Rahmad Fariska Putra Rahmadiawan, Dieter Ramadhan, Arya Famas Remon Lapisa Rendy Dwi Putra reza Rheda Pratama Rifelino Rifelino Riski Camarta Rizki Rahmadian Rodesri Mulyadi Rozaki Yudha, Hatami Sahputra, Roni Eka Salmat Salmat Sari, Nurfitri Rahmi Sigit Dwi Lesmana Sigit Dwi Lesmana Silfi Chorillah Putri Sri Rizki Putri Primandari Susi Marisa Syahril Syahril Syahril Thifal Nefri Zofa Veny, Harumi Waskito Yolli Fernanda Yufrizal Yufrizal Zainal Abadi Zulhan Insan Makruf

Title

Found 46 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 46 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 46 Documents
Search