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All Journal BERKALA FISIKA POSITRON Pixel : Jurnal Ilmiah Komputer Grafis Jurnal Rekayasa Sipil dan Desain JGE (Jurnal Geofisika Eksplorasi) JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI Jurnal Geocelebes Indonesian Physical Review Jurnal Penelitian Geografi (JPG) Journal of Scientific Research, Education, and Technology Proceeding Seminar Nasional IPA Jurnal Komputer dan Teknologi (JUKOMTEK) Jurnal Teknologi dan Inovasi Industri Jurnal Geosaintek
Ahmad Zaenudin
Universitas Lampung
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Library & Information Science Physics Social Sciences

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Analisis Struktur Patahan Daerah Suoh Menggunakan Metode Gaya Berat dan Penentuan Kerapatan Patahan Zaenudin, Ahmad; Karyanto, Karyanto; Kurniasih, Aulia; Wibowo, Rahmat Catur
POSITRON Vol 11, No 2 (2021): Vol. 11 No. 2 Edition
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Univetsitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1359.949 KB) | DOI: 10.26418/positron.v11i2.48461

Abstract

Suoh merupakan daerah tektonik aktif yang mengakibatkan terbentuknya struktur geologi yang tersebar di Daerah Suoh. Struktur geologi yang berkembang di Daerah Suoh telah dianalisis menggunakan data gaya berat dan data DEM ALOS PALSAR untuk menentukan dan menganalisis struktur geologi serta arah dominannya. Analisis struktur bawah permukaan menggunakan metode gaya berat dengan analisis Second Vertical Derivative (SVD) dan analisis kelurusan menggunakan metode Fault Fracture Density (FFD). Kontur SVD residual bernilai 0 dan area dengan nilai FFD tinggi (2 sampai 2,6 km/km²) mengindikasikan adanya struktur sesar dangkal. Berdasarkan analisis kelurusan data DEM telah didapatkan informasi tentang kelurusan berarah barat laut-tenggara yang sangat jelas, selaras dengan struktur geologi regional daerah Suoh.
Pengaruh Perendaman Air Laut Terhadap Kuat Tekan dan Permeabilitas Beton irawan, doni; Niken, Chatarina; Zaenudin, Ahmad; Helmi, Masdar
Jurnal Rekayasa Sipil dan Desain Vol 11, No 4 (2023): Edisi Desember 2023
Publisher : Jurnal Rekayasa Sipil dan Desain

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Abstract

AbstractConcrete is one of the most commonly used building materials in infrastructure, including buildings in marine environments. This research aims to provide an overview of the strength of concrete due to exposure to sea water and compare it with protected concrete. The research was carried out experimentally using the SNI 03 - 2834 - 2000 mix design method by testing the compressive strength and permeability of concrete with a total of 30 test objects. The concrete is given a protected treatment and submerged in sea water. The results of research on the compressive strength of protected concrete aged 28, 56 and 90 days were 22, 56 MPa, 24.35 MPa and 25.84 MPa respectively. Meanwhile, the compressive strength of concrete submerged in sea water aged 28, 56 and 90 days is 22.27 MPa, 17.67 MPa and 16.10 MPa. Meanwhile, testing the permeability of concrete using the natural method (immersing the concrete in sea water) showed that the permeability of concrete aged 28, 56 and 90 days was 27.7 mm, 35.0 mm and 40.7 mm. The greater the permeability of the concrete, the smaller the compressive strength of the concrete and the smaller the permeability of the concrete, the greater the compressive strength value. Sea water can reduce the compressive strength of concrete based on the soaking time. In this case it is recommended when building construction in a marine environment to make the concrete watertight. Key words : compressive strength, concrete, concrete permeability, sea water. AbstrakBeton adalah salah satu bahan bangunan yang paling umum digunakan dalam infrastruktur termasuk bangunan yang ada dalam lingkungan laut. Penelitian ini bertujuan untuk mengetahui gambaran mengenai kekuatan beton akibat terpapar oleh air laut dan membandingkan dengan beton terlindung. Penelitian dilakukan secara eksperimental dengan metode mix design SNI 03 – 2834 – 2000 dengan pengujian kuat tekan dan permeabilitas beton dengan jumlah benda uji sebanyak 30 sampel. Beton diberikan perlakuan terlindung dan terendam air laut. Diperoleh hasil penelitian kuat tekan beton terlindung umur 28, 56 dan 90 hari berturut – turut sebesar 22, 56 MPa, 24,35 MPa dan 25,84 MPa. Sedangkankuat tekan beton terendam air laut umur 28, 56 dan 90 hari sebesar 22,27 MPa, 17,67 MPa dan 16,10 MPa. Sedangkan pengujian permeabilitas beton menggunakan metode alami (merendam beton di air laut) diperoleh permeabilitas beton umur 28,56 dan 90 hari sebesar 27,7 mm, 35,0 mm dan 40,7 mm. Semakin besar permeabilitas beton maka akan semakin kecil kuat tekan beton dan semakin kecil permeabilitas beton maka nilai kuat tekan akan semakin besar. Air laut dapat menurunkan kuat tekan beton berdasarkan lama perendaman. Dalam hal ini disarankan dalam pembangunan kontruksi dilingkungan laut untuk membuat beton kedap air.Kata kunci : air laut, beton, kuat tekan, permeabilitas beton.
Analisis Seismisitas dan Mekanisme Fokus Sesar Sumatera: Studi Kasus Segmen Semangko dan Selat Sunda Kurniawan, Andri; Wibowo, Rahmat Catur; Nurrochman, Arsy; Zaenudin, Ahmad; Wibowo, Adhi; Destawan, Ridho; Hanif, Irfan
Jurnal Teknologi dan Inovasi Industri (JTII) Vol 5, No 2 (2024)
Publisher : Fakultas Teknik, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtii.v5i2.98

Abstract

Penelitian ini bertujuan untuk menganalisis seismisitas dan mekanisme fokus di wilayah Sesar Semangko dan Sesar Sunda, yang terletak di daerah aktif tektonik Indonesia. Dengan merelokasi 1,464 gempa bumi dari tahun 2010 hingga 2023, kami menemukan pola distribusi gempa yang lebih terfokus, terutama di sekitar Sesar Semangko. Nilai RMSCT rendah dan Conditional Number (CN) dalam rentang 59–80 menunjukkan stabilitas dan akurasi hasil. Dua kluster gempa teridentifikasi, satu di Teluk Semangko dan satu di bagian selatan, yang mendorong analisis lebih lanjut menggunakan inversi momen tensor. Hasil inversi menunjukkan dominasi aktivitas tektonik dengan proporsi 67,2% untuk Double-Couple (DC) dan 32,8% untuk Compensated Linear Vector Dipole (CLVD), serta mengonfirmasi tipe sesar sebagai strike-slip dengan arah 350°, kemiringan 55°, dan rake 179°. Penyelidikan stres prinsipal menunjukkan adanya kesamaan mekanisme antara segmen Semangko dan Sunda, yang memperlihatkan arah regangan yang halus. Temuan ini memperdalam pemahaman mengenai interaksi sesar aktif di Indonesia dan implikasinya terhadap keselamatan masyarakat. Penelitian lebih lanjut diperlukan untuk mengeksplorasi lebih dalam dinamika seismik di wilayah ini.
PERANCANGAN SISTEM APLIKASI PERHITUNGAN OTOMATIS BERBASIS VB NET DAN ARDUINO PADA MESIN CHAMBER DI PT JVCKENWOOD Zaenudin, Ahmad; Anas, Ahmad
Jurnal Komputer dan Teknologi Vol 4 No 1 (2025): JUKOMTEK JANUARI 2025
Publisher : Yayasan Pendidikan Cahaya Budaya Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58290/jukomtek.v4i1.304

Abstract

Technological advances are an important aspect for companies in meeting demands for ease, speed and accuracy of information processing. The Head Unit testing system at PT JVCKENWOOD ELECTRONICS INDONESIA currently still uses manual methods on several chamber machines, this is considered less effective because it takes a long time to set the stopwatch and does not provide test history data for each process (report). Based on these problems, the author aims to design an automatic calculation application system based on VB.NET and Arduino on the chamber machine at PT JVCKENWOOD ELECTRONICS INDONESIA. The results of research at PT JVCKENWOOD ELECTRONICS INDONESIA show that by building an automatic calculation system on the chamber machine, the process of recording test history can be made easier and the potential for timing errors on the stopwatch can be eliminated.
Critical Analysis of The Impact of Multiculturalism in Modern Islamic Education Learning Methods Zaenudin, Ahmad; Fitri, Laely Mahfurotul; Abidin, Zaenal
Journal of Scientific Research, Education, and Technology (JSRET) Vol. 4 No. 2 (2025): Vol. 4 No. 2 2025
Publisher : Kirana Publisher (KNPub)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58526/jsret.v4i2.751

Abstract

The phenomenon of globalization and increasingly intense cultural migration flows bring new challenges in the world of education, including in modern Islamic education. The cultural diversity that grows in the school environment demands inclusive and adaptive learning methods. However, in reality, many Islamic educational institutions have not been fully able to integrate the values of multiculturalism constructively into learning methods, thus creating a gap between the reality of implementation and the ideal of Islamic education that is rahmatan lil 'alamin. This study aims to critically analyze three main focuses: (1) the influence of multiculturalism on the choice of learning methods, (2) its impact on teacher-student interaction, and (3) the extent to which learning methods are able to accommodate multicultural values without violating the principles of Islamic teachings. The approach used is qualitative-descriptive with a case study method. Data were collected through in-depth interviews, observations, and documentation from three modern Islamic schools in urban areas. Data analysis was carried out by reduction, categorization, and thematic interpretation techniques. The results of the study show that the integration of multicultural values in learning methods is still partial and highly dependent on the readiness of teachers. In conclusion, a more culturally conscious pedagogical strategy is needed to bridge Islamic values with a plurality of students
2D gravity qualitative modeling to identify bedrock and volcanic rocks in South Lampung region Zaenudin, Ahmad; Darmawan, I Gede Boy; Laimeheriwa, George
Jurnal Ilmiah Pendidikan Fisika Al-Biruni Vol 9 No 1 (2020): Jurnal Ilmiah Pendidikan Fisika Al-Biruni
Publisher : Universitas Islam Negeri Raden Intan Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/jipfalbiruni.v9i1.5859

Abstract

Gravity measurement has been conducted in South Lampung area to study the characteristics of the distribution of bedrock and igneous rocks, especially those that can be utilized for development in the National Strategic Area of the Sunda Strait. This study uses a 2D qualitative modeling method and utilizing spectrum analysis of complete Bouguer anomaly data. Based on the result of modeling of residual gravity anomaly, it was found that the intrusion pattern on Sulan granitoid pluton and surrounding plutons showed a significant intrusion of the body and scattered in some Tarahan area. 2D qualitative modeling shows Paleozoic metamorphic rocks are responsible as bedding rocks, and the spread was identified scattered throughout the study area, although it cannot be ascertained whether the bedrock in the Bakauheni area is precisely the same rock as the bedrock in Tarahan area. Meanwhile, Quaternary volcanic rocks are still dominated by tuffaceous sandstone and breccia. This method also confirms that andesite lava is commonly found as a product of the eruption of Mount Rajabasa and Pre-Rajabasa in the Bakauheni region. Nevertheless, some potential of basaltic andesite rocks can be obtained in monogenetic volcanic zones exposed around the foot of Mount Rajabasa.
STRATIGRAFI SUSEPTIBILITAS MAGNETIK SINGKAPAN EMBUNG E SEBAGAI ACUAN INTERPRETASI BAWAH PERMUKAAN DI INSTITUT TEKNOLOGI SUMATERA Santoso, Nono Agus; Pascaloa, M Rafif; Zaenudin, Ahmad
Jurnal Geosaintek Vol. 8 No. 1 (2022)
Publisher : Institut Teknologi Sepuluh Nopember

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Abstract

Reference in interpretation is very important. We cannot always rely on the Telford table because each region has different physical parameters. The purpose of this study was to create a magnetic susceptibility stratigraphy of the Embung E outcrop with the hope that it could be used as a reference for subsurface interpretation at the Sumatran Institute of Technology (ITERA). The results obtained that the Embung E outcrop has a magnetic susceptibility stratigraphy consisting of soil, tuff and tuffan clay. Sequentially the magnetic susceptibility of the soil is about 5 – 90 × 10-8m3/kg, tuff is about 1-10 × 10-8m3/kg and the tuff clay is about 5 – 80 × 10-8m3/kg. This result can be used as a reference for interpretation because it has been correlated with geological observations of rocks in the field.
Perancangan Desain Packaging Untuk Aksesoris Pernikahan Wedding Planner Dodok Lawang Banyumanik Semarang nugroho, setiyo adi; Yulfiani, Rizka Amalia; Zaenudin, Ahmad; rudjiono, rudjiono
Pixel :Jurnal Ilmiah Komputer Grafis Vol. 16 No. 2 (2023): Pixel :Jurnal Ilmiah Komputer Grafis dan Ilmu Komputer
Publisher : UNIVERSITAS STEKOM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51903/pixel.v16i2.1480

Abstract

Product packaging has a very important role in attracting consumers, making consumers select the goods and serving as a tool for brand promotion. Using images, colors, and text, graphic designers can apply design principles to produce visually appealing packaging, highlight the benefits of a product, and give it a unique personality. Dodok Lawang runs a business in the form of services, namely making dowries, gifts, ring boxes and gift boxes. In this research, we developed packaging making/with the aim of renewing old packaging so that it appears more attractive. The form of packaging for the wedding planner is in the form of boxes and paper bags, as well as leaflets with a simple but still elegant design concept. validation from media experts and material expert have a result that the product is valid to be used as a protecting/wrapping of product properly. From the user's side, this design is effective because the information and visuals acquired from the packaging design are better understood by the user.
PELATIHAN HIDROPONIK SEBAGAI SARANA EDUKASI PERTANIAN MODERN BAGI PESERTA DIDIK SMP NEGERI 11 SEMARANG Rismawati, Indah; Pamelasari, Stephani Diah; Zulkarnaen, Iskandar; Aryanti, Ismi; Khatimah, Khusnul; Putranto, Kharisma Bayu; Khairika, Anwar; Safitri, Liya; Apriliani, Maya; Zaenudin, Ahmad; Satriawan, Akbar; Wigati, Anugrah Sukma Dia
Proceeding Seminar Nasional IPA 2025
Publisher : LPPM UNNES

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Abstract

Ketahanan pangan merupakan tantangan utama di era modern, khususnya dalam menghadapi keterbatasan lahan dan dampak perubahan iklim. Inovasi dan pendidikan di kalangan generasi muda menjadi kunci untuk menciptakan solusi yang berkelanjutan. Penelitian pengabdian ini bertujuan untuk memberdayakan peserta didik yang tergabung dalam Kelompok Ilmiah Remaja (KIR) di SMP Negeri 11 Semarang melalui pelatihan teknologi hidroponik sebagai alternatif pertanian modern yang efisien, hemat lahan, dan ramah lingkungan. Metode pelaksanaan meliputi sosialisasi, pelatihan berbasis praktik, pendampingan, serta integrasi keterampilan kewirausahaan dan pemasaran digital. Hasil kegiatan menunjukkan bahwa peserta didik tidak hanya memperoleh pengetahuan konseptual dan keterampilan teknis dalam budidaya tanaman hidroponik, tetapi juga mengalami peningkatan kesadaran akan pentingnya ketahanan pangan berbasis teknologi. Selain itu, peserta berhasil mengembangkan proyek hidroponik mandiri yang berpotensi diaplikasikan di lingkungan sekolah maupun masyarakat. Pelatihan ini juga mendorong penguatan literasi sains dan karakter abad ke-21, seperti berpikir kritis, tanggung jawab, dan kepedulian terhadap lingkungan. Dengan demikian, pelatihan hidroponik terbukti menjadi strategi edukatif yang efektif dalam menumbuhkan kemandirian, inovasi, dan kontribusi nyata peserta didik terhadap isu ketahanan pangan berkelanjutan.
Co-Authors Adhi Wibowo Agung Wiyono Ahmad Anas ANDRI KURNIAWAN Apriliani, Maya Aryanti, Ismi Bagus Sapto Mulyatno Dani, Ilham Daniel Rudjiono Darmawan, I Gede Boy Destawan, Ridho Dian Pratiwi Edo Pratama Eko Rananda Fachri Aldi Pramudya Fitri, Laely Mahfurotul George Laimeheriwa Hanif, Irfan Hayu Nurfaidah I Gede Boy Darmawan Ilham Dani Ilham Tri Putra Sofiyadin Irawan, Doni Irfan - Hanif Iskandar Zulkarnaen Karyanto, Karyanto Khairika, Anwar Khatimah, Khusnul Kurniasih, Aulia Kusnahadi Susanto Laimeheriwa, George Masdar Helmi Nandi Haerudin Niar Amalia Niken, Chatarina Nurrochman, Arsy Pascaloa, M Rafif Putranto, Kharisma Bayu Rachmat Arief Rahmat C Wibowo Rananda, Eko Restu Ningsih Rismawati, Indah Safitri, Liya Santoso, Nono Agus Satriawan, Akbar Setiyo Adi nugroho Shiska Yulistina Siska Erna Sephiana Stephani Diah Pamelasari, Stephani Diah Suharno Suharno Suharno Suharno Wibowo, Rahmat Catur Wigati, Anugrah Sukma Dia Yulfiani, Rizka Amalia Zaenal Abidin