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All Journal Jurnal Teknik Mesin Jurnal Pendidikan Vokasi Jurnal Simetris SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Suluh Pembangunan: Journal of Extension and Development Journal of Mechanical Engineering Education (Jurnal Pendidikan Teknik Mesin) VANOS Journal of Mechanical Engineering Education Jurnal Teknik Mesin Jurnal Pendidikan Teknik Mesin Jurnal Taman Vokasi JURNAL DINAMIKA VOKASIONAL TEKNIK MESIN Jurnal Elementer (Elektro dan Mesin Terapan) Machine : Jurnal Teknik Mesin Pendas : Jurnah Ilmiah Pendidikan Dasar RESISTOR (Elektronika Kendali Telekomunikasi Tenaga Listrik Komputer) Faktor Jurnal Ilmiah Kependidikan JURNAL KAJIAN TEKNIK MESIN TEKNOKOM : Jurnal Teknologi dan Rekayasa Sistem Komputer Infotekmesin International Journal of Economics, Business and Accounting Research (IJEBAR) Jurnal Energi dan Teknologi Manufaktur STEAM Engineering : Journal of Science, Technology, Education And Mechanical Engineering Jurnal Ilmiah Profesi Pendidikan Jurnal Abdi Insani RESEARCH AND DEVELOPMENT JOURNAL OF EDUCATION (RDJE) Jurnal Berdaya Mandiri Jurnal Konversi Energi dan Manufaktur Jurnal Pendidikan Teknik Mesin Undiksha Motor Bakar : Jurnal Teknik Mesin Accurate: Journal of Mechanical Engineering and Science Journal of Vocational Education and Automotive Technology Jurnal Rekayasa Energi dan Mekanika Jurnal Universal Technic Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri Prosiding University Research Colloquium Innovative: Journal Of Social Science Research TOFEDU: The Future of Education Journal Neraca Manajemen, Akuntansi, dan Ekonomi Jurnal Global Ilmiah Medic Nutricia : Jurnal Ilmu Kesehatan TEKNOS: Jurnal Pendidikan dan Teknologi Journal of Business Economics and Management IPSSJ Media Elektrik Jurnal Pendidikan dan Pembelajaran Sains Jurnal Profesi Keguruan Jurnal Pendidikan Teknik Mesin J-Proteksion : Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin Jurnal Teknik Mesin Genta Mulia
Hamid Abdillah
Universitas Sultan Ageng Tirtayasa, Indonesia
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The Implementation of the Jigsaw Learning Model to Improve Student Learning Outcomes in Basic Automotive Engineering (BAE) at SMKN 2 Serang City Kurniawan, Taufik Indra; Iman , Atep; Abdillah, Hamid
The Future of Education Journal Vol 4 No 8 (2025)
Publisher : Lembaga Penerbitan dan Publikasi Ilmiah Yayasan Pendidikan Tumpuan Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61445/tofedu.v4i8.1058

Abstract

This study aims to evaluate the impact of implementing the Jigsaw cooperative learning model on student learning outcomes in Basic Automotive Engineering (BAE) at SMKN 2 Serang City. The research is motivated by the low student achievement, lack of motivation, and minimal active participation in learning, which has been conducted using the conventional lecture method. This research uses a quasi-experimental method with a non-equivalent control group design. The sample consists of two classes: the experimental class, which applies the Jigsaw model, and the control class, which uses a conventional learning approach. The instruments used were pre-test and post-test to measure cognitive learning outcomes. The analysis results show a significant difference between the learning outcomes of the experimental and control classes, as evidenced by the paired sample t-test with a significance value of 0.000 < 0.05. The average post-test score of the experimental class was 85.30, while the control class had a score of 74.29. These findings indicate that the Jigsaw learning model significantly improves student learning outcomes. Therefore, the Jigsaw model can be an alternative active learning method to enhance vocational education quality in the automotive field.
Optimisasi Sumber Nutrisi dan Waktu Inkubasi untuk Meningkatkan Aktivitas Enzim Lipase dari Aspergillus niger ITBCC L74 pada Substrat Dedak Padi Abdillah, Hamid; Wardana, Ilham Caresa; Maryama, Naba Dalayuma; Hasbullah, Muktiari
Prosiding University Research Colloquium Proceeding of The 11th University Research Colloquium 2020: Bidang MIPA dan Kesehatan
Publisher : Konsorsium Lembaga Penelitian dan Pengabdian kepada Masyarakat Perguruan Tinggi Muhammadiyah 'Aisyiyah (PTMA) Koordinator Wilayah Jawa Tengah - DIY

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Abstract

Enzim lipase didefinisikan sebagai enzim yang menghidrolisis asam lemak rantai panjang. Substrat alami enzim lipase terdiri dari trigliserida yang tersusun dari asam lemak rantai panjang. Di Indonesia permintaan enzim untuk memenuhi kebutuhan industri dalam proses fermentasi mengalami peningkatan secara signifikan yang mencapai angka kebutuhan 2500 ton dengan nilai impor sekitar 200 miliar, diperkirakan akan terus meningkat antara 5% hingga 7% setiap tahunnya. Penelitian ini bertujuan untuk menentukan nutrisi optimum pada proses fermentasi padat menggunakan substrat dedak padi dan strain Aspergillus niger karena sudah terbukti cukup baik untuk memproduksi enzim lipase. Variasi penelitian yang digunakan adalah sumber nutrisi berupa sumber nitrogen, sumber mineral anorganik, kadar air substrat dan waktu inkubasi agar menghasilkan enzim lipase dengan aktivitas tertinggi. Hasil penelitian menunjukkan sumber nitrogen terbaik adalah urea 4% dengan aktivitas enzim lipase 1,07 U/mL dan NH4NO3 6% sebesar 1,60 U/mL. Sumber mineral anorganik terbaik adalah FeSO4 0,6% dengan aktivitas enzim lipase tertinggi 3,47 U/mL dan MgSO4 2 mmolar sebesar 0,67 U/mL. Kadar air terbaik adalah 55%, dengan aktivitas tertinggi 1,07 U/mL, sedangkan waktu inkubasi terbaik Aspergillus niger adalah 6 hari dengan aktivitas tertinggi sebesar 1,47 U/mL.
Metode pembelajaran conversation analysis and variation theory approach untuk meningkatkan hasil pengelasan smaw posisi 1f: Metode pembelajaran Conversation Analisys and Variation Theory Approach (CAVTA) pada praktik pengelasan SMAW Nurhaji, Soffan; Abizar, Haris; Abdillah, Hamid; Deni Ramdani, Sulaeman; Alimin, Alimin
Jurnal Taman Vokasi Vol 11 No 1 (2023)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/jtvok.v11i1.11131

Abstract

Tujuan penelitian ini adalah (1) untuk mengetahui implementasi metode CAVTA pada praktik pengelasan SMAW, (2) untuk mennganalisis peningkatan hasil pengelasan SMAW posisi 1F, (3) untuk mengetahui keefektifitasan penerapan metode CAVTA pada praktik pengelasan SMAW. Pendekatan yang digunakan dalam penelitian ini adalah mixed method dengan model concurren embed, sedangkan untuk jenis penelitiannya menggunakan Penelitian Tindakan Kelas (PTK). Subjek penelitian ini adalah mahasiswa yang mengampu mata kuliah praktik pengelasan 1 pada semester ganjil 2020/2021 di jurusan pendidikan vokasional teknik mesin sebanyak 25 orang. Teknik pengumpulan data dalam penelitian ini berupa observasi, dokumentasi, wawancara dan studi literatur. Instrumen yang digunakan dalam penelitian ini menggunakan arsip dokumen penunjang proses pembelajaran, lembar wawancara dan kuisioner. Hasil penelitian ini yaitu: 1) Pada impelementasi metode CAVTA dilakukan tiga siklus yang terdiri dari percobaan 1, percobaan 2 dan percobaan 3. 2) Terdapat peningkatan dari hasil pengelasan percobaan 1 (18,6%), percobaan 2 (35,0%) dan percobaan 3 (52,2%). Peningkatannya dinyatakan signifikan karena berdasarkan analisis anova satu jalur diperoleh hasil Fhitung > Ftabel yaitu 53,02 > 3,16 maka H0 ditolak berarti signifikan. 3) Hasil validasi penerima metode untuk keefektivitasan penerapan metode CAVTA pada praktik pengelasan SMAW sebesar 89% dengan kriteria sangat baik. Kesimpulan dari penelitian ini adalah metode CAVTA ini dapat meningkatkan hasil pengelasan SMAW posisi 1F dan efektif diterapkan pada proses pembelajaran praktik pengelasan SMAW karena mampu meningkatkan pemahaman dan keterampilan mahasiswa.
Uji Aktivitas Enzim Protease pada Kedelai Grade C yang Difermentasi Padat dengan Inokulum Tempe Kediri Yusron, Ahmad; Purwitasari, Nadila; Abdillah, Hamid
Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri 2021: Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

Kedelai grade c sering dianggap sebagai limbah pertanian dan jarang digunakan namun memiliki nilai gizi yang cukup tinggi, salah satunya adalah protein. Oleh karena itu dapat dimanfaatkan sebagai substrat dalam produksi enzim protease melalui proses fermentasi padat kedelai grade c dengan inokulum tempe Kediri. Enzim protease ini memiliki nilai ekonomis yang tinggi karena efisien dan ramah lingkungan sehingga dapat berkontribusi menjaga lingkungan dengan memanfaatkan limbah padat. Penelitian ini bertujuan untuk mengetahui pengaruh moisture content variasi MC% 85%, 80%, 75% dengan nutrisi tambahan berupa Magnesium klorida variasi 10ml, 20ml, 30ml dan juga pengaruh pH 7, 8, 9 dengan variasi waktu inkubasi 48 jam, 76 jam, 96 jam terhadap aktivitas enzim protease yang diproduksi oleh enzim Rhizopus sp. Uji aktivitas enzim protease dilakukan secara spektrofotometri dengan kasein sebagai substratnya. Hasil pengujian aktivitas enzim protease menunjukkan nilai aktivitas yang berbeda beda. Pada kisaran variable moisture content dengan nutrisi tambahan yang dipelajari kondisi optimum aktivitas enzim protease adalah moisture content 75% dan nutrisi tambahan sebesar 30 mg, Aktivitas enzim protease yang diperoleh sebesar 2,0949 unit/mL. Dan pada kisaran variable pH dengan waktu inkubasi yang dipelajari kondisi optimum aktivitas enzim protease adalah pH 7 dan waktu inkubasi selama 96 jam, Aktivitas enzim protease yang diperoleh sebesar 1,5072 unit/ml.
Analisa Pengukuran Ketebalan Steel Block, Aluminium Block dan Steel Plate Menggunakan Ultrasonic Thickness Gauge Ulikaryani, Ulikaryani; Unggul Satria Jati; Radhi Ariawan; Dian Prabowo; Sabtun Ismi Khasanah; Hamid Abdillah
Infotekmesin Vol 16 No 1 (2025): Infotekmesin: Januari 2025
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v16i1.2583

Abstract

Thickness measurement using an ultrasonic sensor is a type of non-destructive test (NDT) that is commonly used in various industries. Measurement of thickness (thickness) on steel blocks, aluminum blocks and steel plates using an ultrasonic thickness gauge. The method used is the contact testing method which is then compared with manual measurements. Based on data analysis from the measurement results, it was found that the thickness with the highest percent error was in the Steel S3 sample, namely 93.87%. Meanwhile, the thickness measurement with the lowest percent error in the Steel plate sample was 0%. Meanwhile, for measuring the dimensions of artificial corrosion defects, the smallest error percentage obtained was 0% for several dimensions, with the average measurement error obtained being 22.82%. The profile shape of the detected artificial corrosion defects is exactly the same as the reference profile. So, measuring the thickness of steel blocks, aluminum blocks and steel plates as well as measuring artificial corrosion defects located in steel plates can be detected well and the measuring results can be trusted.
PENERAPAN SISTEM OTOMASI DALAM PEMBERIAN PAKAN IKAN LELE GUNA MENGEFISIENSI WAKTU Sanam, Sanam; Azpah, Inda Aidatul; Bohari, Bohari; Abdillah, Hamid; Putra, Ananda Yutho Wibisono
Accurate: Journal of Mechanical Engineering and Science Vol. 5 No. 1 (2024): April 2024
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/accurate.v5i1.1490

Abstract

Catfish is a cultivated fishery commodity that has quite large business opportunities to be developed to fulfill community nutrition. Feeding in catfish farming is very important and is one of the things that really needs to be considered. Feeding must be planned so that catfish can grow optimally. Unscheduled feeding results in increased cannibalism among catfish. The use of an automation system must be implemented in order to make it easier and more efficient in feeding catfish. The research method used in writing this scientific work is by using literature study. The purpose of this writing is to find out and implement an automation system for feeding catfish to make it easier and more efficient in feeding catfish. The results obtained from this automatic tool can make it easier for humans to operate, so that it no longer needs to be powered manually. Just automatically use the feeder. In conclusion, the implementation of an automatic system using IoT and Arduino Uno has been proven to be able to streamline catfish feeding times.
ANALISA KEKERASAN MATERIAL HASIL ANNEALING PADA PIPA LONG ELBOW MATERIAL STAINLESS STEEL ASTM 304 L MENGGUNAKAN HARDNESS TESTER Muhdori; Abdillah, Hamid; Raka Irawan
Accurate: Journal of Mechanical Engineering and Science Vol. 4 No. 02 (2023): October 2023
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/accurate.v4i02.2367

Abstract

Bending is a process of mixing materials which results in convexity while other parts become concave due to the influence of force or bending moment. During the bending process, it results in different pipe strains, which cause permanent strains. The annealing process (heat treatment) is a process for changing the metal structure by heating the specimen. The aim of this research is to analyze the material hardness of the ASTM 304 L stainless steel long elbow pipe after the annealing process is carried out, the test is carried out at various angles, namely (0°, 90°, 180°, and 270°) using the Hardness Tester. The method used in this research is an experimental method, a research procedure carried out to determine the effects of the annealing treatment given to the material. The research results from the 0° angle have a material hardness of 156 HB, from the 90° angle the material hardness is 140 HB, from the 1800 angle the material hardness is 164 HB, from the 2700 angle the material hardness is 159 HB, the conclusion is that the annealing process and the inner angle of the long elbow pipe has a significant influence on the hardness of stainless steel materials. Keywords: elbow pipe, annealing, hardness tester.
ANALISIS KOMPETENSI YANG DIBUTUHKAN NELAYAN DALAM MENGHADAPI PERKEMBANGAN TEKNOLOGI KAPAL PROPULSI LISTRIK Nurpalah, Muhamad Rizki; Hamid Abdillah; Iskendar
Accurate: Journal of Mechanical Engineering and Science Vol. 5 No. 1 (2024): April 2024
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/accurate.v5i1.2375

Abstract

Research on the competencies needed by fishermen in an era of increasingly rapid technological progress aims to explain the basic competencies that electric propulsion boat users need to have. Analysis based on implementation needs to be carried out with the aim of adapting the use of water transportation technology, namely ships with electric power, according to the required competencies. This research was carried out using a descriptive qualitative approach method with a literature study type of research. The research was carried out by collecting data from secondary sources such as books and journal articles related to the variables and subjects of this research. From the research results, a comparison was obtained between the abilities currently possessed by fishermen, and the abilities that fishermen must have in the future in facing developments in water transportation. It is known that, in terms of use, users need to understand the use of electric propulsion ships and K3 in their application, in terms of understanding more about the main components of the technology used, in terms of maintenance being able to repair and maintain the components, and understanding the social impacts that occur as well as the advantages and disadvantages of using them. Therefore, efforts are needed to educate the public so that they can easily receive clear information about electric propulsion ship technology, so that the results of the development of this technology can be accepted by the general public.
Analisis Penggunaan Stainless Steel 304 Pada Mesin Heating Tank di PT PACHIRA DISTRINUSA Rizky Nugraha, Gilang; Abdillah, Hamid; Irawan, Bambang
Innovative: Journal Of Social Science Research Vol. 4 No. 6 (2024): Innovative: Journal Of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/innovative.v4i6.16818

Abstract

Dalam upaya meningkatkan efisiensi dan keandalan operasional, serta memastikan kepatuhan terhadap standar industri yang berkaitan, PT Pachira Distrinusa berkeinginan untuk mengembangkan mesin heating tank berbahan Stainless Steel 304. Penelitian ini bertujuan untuk membahas lebih dalam terkait penggunaan stainless steel 304 sebagai bahan utama dalam pembuatan mesin heating tank di PT Pachira Distrinusa. Penelitian ini dilakukan dengan survey dan teknik pengumpulan data yang digunakan adalah wawancara serta melakukan studi literatur. Hasil pada penelitian ini yaitu PT Pachira Distrinusa menggunakan stainless steel 304 untuk membuat mesin heating tank ini adalah karena stainless steel 304 sudah food grade serta harga yang relatif murah dengan kualitas yang baik dibanding bahan yang lain, serta sifatnya yang tahan korosi serta minim perawatan. Material ini optimal karena memenuhi kebutuhan akan ketahanan terhadap korosi, efisiensi biaya, serta standar food-grade, dan juga menawarkan kemudahan dalam fabrikasi dan perawatannya
PENGARUH PARAMETER PENGELASAN TERHADAP HASIL UJI BENDING DENGAN STANDAR AWS PADA BAJA ASTM A36 Veronika, Rika; Abdillah, Hamid; Hidayat, Ma’mun; Nainggolan, Irwan Kalam
Machine : Jurnal Teknik Mesin Vol 9 No 2 (2023): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Sains dan Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jm.v9i2.3659

Abstract

In this modern era, technology is progressing rapidly, including welding techniques. In this welding process, a welder has a manual called WPS (Welding Procedure Specification). The role of WPS in welding is very important, this is because WPS is made to achieve good welding results and according to what is desired. Therefore, research regarding the suitability of WPS with welding results was carried out. This study uses an experimental method by performing GMAW (Gas Metal Arc Welding) welding in the 1G position and the test process is carried out with a bending test. This bending test process is carried out to find out whether the WPS used is in accordance with the desired results or not. In the bending test results that have been carried out by welding experiments twice, the bending test results are 3.528 kN/mm 2 . In this welding process, more optimal results were obtained using the amperage parameters of 94A – 106A and a voltage of 23 V – 25 V. In this process no visual welding defects were found so that this WPS could be used by trainees.
Co-Authors AA Sudharmawan, AA Ade Dwi Putra Janata Agung Dwi Agus Dwiyanto, Agus Agustien, Gina Ahmad Doni Ahmad Habibi Ahmad Mujib Ahmad Mujib Ahmad Yusron, Ahmad Alimin Alimin Anam, Ibnu Khoirul Ananda Yhuto Wibisono Putra Andrian Wisnu Dewangga Anggrainy, Sherlly Dwi Annisa Rizki Liliandari Ardiansyah, Atih Ari Prasetyo Ari Prasetyo Ari Prasetyo Atina, Vivin Zulfa Azpah, Inda Aidatul Bagas Waskito Bagus Putra Bohari Bohari Bunga Rahmania Deddy Supriatna Deddy Supriyatna Deddy Supriyatna Deddy Supriyatna Deni Ramdani, Sulaeman Dian Nur Anwar Dian Prabowo Dinda Khaira Latifa Dita Amalia Dwi Chandra Adhitya Dwi Rahmalina, Dwi Dyah Wanudyatammi Elfajry, Ano Efrian Fachri Pambudi Fachri Pambudi Fahri, M. Khoirul Fajar Paundra Febnesia, Helleni Firdaus, Hendi Haris Abizar Haris Abizar Haris Abizar, Haris Harsito, Catur Hasbullah, Muktiari Hety Dwi Hastuti Hidayat, Ma’mun Ifa Fauziah Ikhsanudin Abdillah Ikhsanudin Ikhsanudin Iman , Atep Iman, Atep Irhamullah Irhamullah Irma Yulianti Irwan Kalam Nainggolan Iskendar Ismail, Ismail Julian Muhammad Zaky Kurniawan Kurniawan, Taufik Indra Lutiyatmi Lutiyatmi, Lutiyatmi M Nur Iqrom iqrom Mahmudi, Anas Yusuf Maryama, Naba Dalayuma Maulana Yusuf Ma’mun Hidayat Misar Ardiyanto Misri Misri Mochammad Akmal Robidin Moh Fawaid Mohammad Ariansyah Sahputra Muhamad Suhaedi Muhammad Akbar Muhammad Hamidin Muhammad Munadi Muhammad Nafial Hadi Muhammad Nurtanto Muhammad Sofian Muhdor Muhdor Muhdor, Muhdor Muhdori Muhdori, Muhdori Munawar, Barik Adha Munief, Syaeful Nainggolan, Irwan Kalam Naufal Hafizh Arifin Noufal Hafizh Nur Wachid Supriyadi Nurdin, Akhmad Nurlela Nurpalah, Muhamad Rizki Nurwijayanti Ono Rokhadhitomo Parhan Adit Rahmadana Prasetyo, Bagas Aji Prayuda, Ridzki Puguh Elmiawan Purwitasari, Nadila Putra, Ananda Yutho Wibisono Putri, Patricia Septiansari Radhi Ariawan Raka Irawan Rakhmawan Rakhmawan Ramadhan, Yudi Oktavia Reza Awalludin Prinanto Reza Hermawan Ricky Cahyasari Putra Rika Veronika Rizky Nugraha, Gilang Rumapea, Radella Rusdi Febriyanto Ryan, Muhammad Sabtun Ismi Khasanah Sanam Sanam Sanam Sanam Sanam, Sanam Sidik, Mouhamad Siti Rahmah Soffan Nurhaji Soffan Nurhaji, Soffan Sofian, Muhammad Sudiyono Sulaeman Deni Ramdani Sulerman Deni Ramdani Syamsul Hadi Syamsul Hadi Syamsul Hadi Syamsul Munawar Tri Daryanto Tri Daryanto Tri Winahyu Hariyadi Ulikaryani Ulikaryani Ulikaryani, Ulikaryani Unggul Satria Jati Veronika, Rika wahid fajar kurniawan Wardana, Ilham Caresa Warni, Enok Yulianti, Dinda