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All Journal VANOS Journal of Mechanical Engineering Education Journal of Mechanical Engineering Learning Martabe : Jurnal Pengabdian Kepada Masyarakat Jurnal Ilmiah Teknik Mesin "MEKANIK" Community Development Journal: Jurnal Pengabdian Masyarakat PENGABDI: Jurnal Hasil Pengabdian Masyarakat Journal of Automotive Technology Vocational Education Jurnal Polimesin Jurnal Pendidikan Teknik Mesin
HENRY ISKANDAR
Universitas Negeri Medan
Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Control & Systems Engineering Economics, Econometrics & Finance Education Engineering Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Other

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KAJIAN TEKNOLOGI PEMBUATAN GULA SEMUT AREN ORGANIK PADA KELOMPOK TANI JATI REJO 1 DESA PARTIMBALAN Suprapto, Suprapto; Iskandar, Henry; Daryanto, Eka; Listiyanto, Listiyanto; Riadi, Selamat; Jubaidah, Jubaidah; R. Nurfazriah, Latifah; R. Aldori, Yopan; Giovan Panjaitan, Asido; Firmansyah Nasution, Taufik
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 7, No 8 (2024): MARTABE : JURNAL PENGABDIAN MASYARAKAT
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v7i8.3004-3012

Abstract

Produk Gula semut aren organik (GSAO) merupakan komoditi yang sangat diminati dipasar nasional dan insternasional. Pengembangan teknologi pengering sangat diperlukan untuk mendapatkan kualitas GSAO yang dapat memenuhi standar pasar. Mesin pengering jenis rak yang dimiliki mitra kelompok tani jati rejo-1 (KTJR-1) belum memenuhi standar teknis pengering. Kegiatan Pengabdian kepada Masyarakat (PKM) bertujuan penerapan ilmu dan ahli teknologi dalam pengembangan teknologi pengeringan rotary drying machine (RDM) untuk meningkatkan kuantitas dan kualitas produk GSAO. Metode pelaksanaan PKM mencakup survei, observasi, pelatihan dan pendampingan, serta analisis mesin pengering jenis rak yang ada di mitra. Hasil rancangan mesin dan perpindahan panas dapat dijadikan dasar oleh mitra dalam fabrikasi sebuah mesin pengering dengan menerapkan prinsip perpindahan panas yang effisien untuk meningkatkan kualitas dan efisiensi produksi GSAO.
UTILIZATION OF INTERNET OF THINGS (IOT) DEVICES AS MEDIA Henry Iskandar; Selamat Triono; Hidir Efendi
Jurnal Pendidikan Teknik Mesin Vol. 10 No. 2 (2023): Jurnal Pendidikan Teknik Mesin
Publisher : Program Studi Pendidikan Teknik Mesin Fakultas Keguruan dan Ilmu Pendidikan Universitas Sriwiajaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jptm.v10i2.1

Abstract

This research aims to design media for remote control systems so that the application requires a combination of hardware and software. Internet of Things (IoT) devices are used as hardware devices to monitor the physical conditions of a working mechanical system. At the same time, the software displays data in digital numeric form, which is controlled remotely using the Android and Windows operating systems. This research consists of 3 stages: 1) analysis of problems and basic needs, 2) product design, and 3) product testing. The results of the basic needs analysis determine that learning in automotive electrical electronics, engineering measurement instrumentation, and automotive control systems must include intelligent automotive materials. The results of the IoT hardware and software designs are connected and work well, resulting in accurate data readings. The product testing results obtained an average value of 85.71%, so the IoT data acquisition media trainer functions well. Utilization of IoT devices as a learning simulation medium in the Industrial Revolution 4.0 era.
THE RELATIONSHIP OF SELF-EFFICACY WITH WORK READINESS OF VOCATIONAL EDUCATION STUDENTS Dwiki Muda Yulanto; Henry Iskandar; Liana Atika
Jurnal Pendidikan Teknik Mesin Vol. 11 No. 1 (2024): Jurnal Pendidikan Teknik Mesin
Publisher : Program Studi Pendidikan Teknik Mesin Fakultas Keguruan dan Ilmu Pendidikan Universitas Sriwiajaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jptm.v11i1.30

Abstract

Work readiness is the ability, skills and work attitudes that meet the demands of society and match the needs of the job. One of the factors in work readiness is related to a person's belief in their abilities or what is called self-efficacy. The aim of this research is to analyze the relationship between self-efficacy and work skills of final year students. This research is descriptive quantitative research using simple regression analysis techniques. The research results show a correlation coefficient of 0.591 and a significance level of <0.05, which means that self-efficacy has a significant relationship with work readiness. The level of contribution of self-efficacy to work readiness is 34.9%. The regression coefficient obtained was 0.476, which means that for every 1% increase in self-efficacy there is an increase in work readiness of 0.476. These figures show that self-efficacy has a positive effect on students' work readiness
ENHANCING ELECTRICAL AUTOMOTIVE PROJECT DESIGN SKILLS WITH A CONTEXTUAL APPROACH Henry Iskandar; Selamat Triono; Hidir Efendi; Lisyanto; Dwiki Muda Yulanto
Jurnal Pendidikan Teknik Mesin Vol. 11 No. 2 (2024): JURNAL PENDIDIKAN TEKNIK MESIN
Publisher : Program Studi Pendidikan Teknik Mesin Fakultas Keguruan dan Ilmu Pendidikan Universitas Sriwiajaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jptm.v11i2.58

Abstract

Learning innovations integrating the latest scientific theory sources emphasize the importance of students' technical skills in facing the transformation of Industry 4.0 technology. This study aims to determine the improvement of technical skills with the SAM (Successive Approximation Model) instructional design approach in Automotive Electrical and Electronics Engineering (AEEE) courses based on Industry 4.0. In this study, 20 respondents were divided into three groups. The SAM model is used as a practical learning instruction. The study results show that the SAM instructional design can improve students' abilities in analyzing, thinking critically, and solving problems. However, soft skills are obstacles, such as communication, action, and Emotional management skills. Student demographic data and pretest data compared to satisfaction data show a significant increase. Thus, the SAM instructional design is effective as one of the strategies for improving students' technical skills. This implication can reference more structured and directed skill passport learning.
PENERAPAN TEKNOLOGI TEPAT GUNA CHOPPER BLENDER PENGOLAHAN PAKAN TERNAK DI DESA KLAMBIR LIMA, KECAMATAN HAMPARAN PERAK Suprapto, Suprapto; Jubaidah, Jubaidah; Lisyanto, Lisyanto; Iskandar, Henry; Panjaitan, Binsar; Riadi, Selamat; Aldori, Yopan
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 8, No 8 (2025): MARTABE : JURNAL PENGABDIAN KEPADA MASYARAKAT
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v8i8.%p

Abstract

Pemanfaatan limbah pertanian dan perkebunan di pedesaan seringkali masih belum optimal, padahal memiliki potensi signifikan sebagai sumber pakan ternak alternatif. Permasalahan yang dihadapi mitra yaitu pakan hijau yang tidak tercacah sempurna  sering terbuang percuma, biaya pakan konsentrat tinggi, serta ketiadaan mesin pencacah. Pengabdian kepada masyarakat (PKM) ini bertujuan untuk meningkatkan efisiensi pengolahan pakan ternak melalui penerapan mesin Chopper Blender Teknologi Tepat Guna (MTTG-CB). Metode pelaksanaan kegiatan meliputi observasi, desain dan fabrikasi mesin, pelatihan operasional dan perawatan, uji coba lapangan, dan pendampingan teknis. Hasil implementasi MTTG-CB mampu mencacah 100 kg pakan hijauan dalam ±30 menit dengan ukuran 2-5 cm. Pelatihan dan pendampingan berhasil meningkatkan keterampilan mitra dalam penggunaan dan perawatan mesin. Melalui pemanfaatan limbah lokal, mitra dapat menghemat waktu dan menekan biaya pakan hingga 40%. Kegiatan ini terbukti meningkatkan efisiensi dan produktivitas peternak, serta berpotensi besar untuk direplikasi oleh peternak lain dalam mendukung ketahanan pangan berbasis lokal.
Influence of Indium Tin Oxide (ITO) poling temperature in vacuum on surface roughness of Polyvinylidene Fluoride(PVDF) film Suprapto, Suprapto; Lisyanto, Lisyanto; Eswanto, Eswanto; Riadi, Selamat; Gunawan, Safri; Iskandar, Henry; Jubaidah, Jubaidah; Muhtadin, Muhtadin
Jurnal Polimesin Vol 21, No 6 (2023): December
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i6.4454

Abstract

The surface roughness is a significant parameter of the performance of PVDF thin film sensors. In this work, we have investigated the effect of ITO poling in vacuum at various temperature on the surface roughness of uniaxially stretched PVDF film. The influence of poling temperature on the surface roughness of PVDF film was examined using atomic force microscopy (AFM). In this work, the AFM data are obtained through the database, and topography is analyzed using Gwydion Software (GS). GS has characterized surface roughness in terms of Average Roughness (Ra), Root Mean Square (Rrms), and Arithmetic average height (Rz). The results show that the GS can detect and measure profile thickness and roughness on a nanoscale with reliable accuracy. The results confirm that the increased poling temperature can reduce the roughness of the surface.
OPTIMALISASI PENGOLAHAN LIMBAH PLASTIK PADA KELOMPOK TANI JATI REJO-1 DI DESA PARTIMBALAN, BANDAR MASILAM, KABUPATEN SIMALUNGUN Jubaidah, Jubaidah; Suprapto, Suprapto; Iskandar, Henry; Puspita, Riana; Aldori, Yopan R.; Syahra, Assyfa; Aryanta Sembiring, Robi; Diansyah, Diansyah; Meidiansyah, Fadli
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 7, No 9 (2024): MARTABE : JURNAL PENGABDIAN MASYARAKAT
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v7i9.3544-3551

Abstract

Kegiatan Pengabdian Masyarakat (PKM) ini bertujuan untuk mengoptimalkan pengolahan limbah plastik di Kelompok Tani Jati Rejo-1, Desa Partimbalan, Bandar Masilam, Kabupaten Simalungun. Metode yang digunakan meliputi sosialisasi, pelatihan, dan pendampingan teknis dalam pengolahan limbah plastik menjadi produk yang bernilai ekonomis. Hasil menunjukkan adanya peningkatan pengetahuan dan keterampilan anggota kelompok tani dalam mengolah limbah plastik. Hasil kegiatan ini berhasil meningkatkan kesadaran lingkungan dan perekonomian masyarakat setempat.
KAJIAN TEKNOLOGI PEMBUATAN GULA SEMUT AREN ORGANIK PADA KELOMPOK TANI JATI REJO 1 DESA PARTIMBALAN Suprapto, Suprapto; Iskandar, Henry; Daryanto, Eka; Listiyanto, Listiyanto; Riadi, Selamat; Jubaidah, Jubaidah; R. Nurfazriah, Latifah; R. Aldori, Yopan; Giovan Panjaitan, Asido; Firmansyah Nasution, Taufik
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 7, No 8 (2024): MARTABE : JURNAL PENGABDIAN MASYARAKAT
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v7i8.3004-3012

Abstract

Produk Gula semut aren organik (GSAO) merupakan komoditi yang sangat diminati dipasar nasional dan insternasional. Pengembangan teknologi pengering sangat diperlukan untuk mendapatkan kualitas GSAO yang dapat memenuhi standar pasar. Mesin pengering jenis rak yang dimiliki mitra kelompok tani jati rejo-1 (KTJR-1) belum memenuhi standar teknis pengering. Kegiatan Pengabdian kepada Masyarakat (PKM) bertujuan penerapan ilmu dan ahli teknologi dalam pengembangan teknologi pengeringan rotary drying machine (RDM) untuk meningkatkan kuantitas dan kualitas produk GSAO. Metode pelaksanaan PKM mencakup survei, observasi, pelatihan dan pendampingan, serta analisis mesin pengering jenis rak yang ada di mitra. Hasil rancangan mesin dan perpindahan panas dapat dijadikan dasar oleh mitra dalam fabrikasi sebuah mesin pengering dengan menerapkan prinsip perpindahan panas yang effisien untuk meningkatkan kualitas dan efisiensi produksi GSAO.
Co-Authors Andri Setiyawan Aryanta Sembiring, Robi Bayu Gilang Purnomo Binsar Panjaitan, Binsar Diansyah, Diansyah Dwiki Muda Yulanto Eka Daryanto, Eka Eko Wahyu Nugrahadi Eswanto, Eswanto Firmansyah Nasution, Taufik Giovan Panjaitan, Asido Gunawan, Safri Hidir Efendi Indra Koto Jubaidah Jubaidah Jubaidah, Jubaidah Latifah R. Nurfazriah Liana Atika Listiyanto, Listiyanto Lisyanto . Manullang, Robert Marlan Marlan Meidiansyah, Fadli Muhtadin Muhtadin Muslim Muslim Nur Basuki Pakpahan, Binsar Maruli Tua R. Nurfazriah, Latifah Riana Puspita, Riana Safri Gunawan Selamat Riadi Selamat Triono Suprapto Suprapto Suprapto Suprapto Syahra, Assyfa Tino Hermanto Yopan Rahmad Aldori