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All Journal Jurnal Ilmu Dasar Jurnal Keteknikan Pertanian Tropis dan Biosistem JISKa (Jurnal Informatika Sunan Kalijaga) Cyber Security dan Forensik Digital (CSFD) eProceedings of Management Indonesian Journal of Aerospace
Adi Wirawan
Jurusan Kimia FMIPA Unesa
Aerospace Engineering Agriculture, Biological Sciences & Forestry Astronomy Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Library & Information Science Mathematics Mechanical Engineering

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Vibration Test Fixtures Design for Payload of Tubular Telemetry System Muksin, Muksin; Pratama, Mikhael Gilang Pribadi P.; Nugroho, Yudha Agung; Wijaya, Yusuf Giri; Ula, Nur Mufidatul; Wirawan, Adi
Jurnal ILMU DASAR Vol 23 No 1 (2022)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jid.v23i1.23894

Abstract

Vibration testing on telemetry system payload is needed to determine its resistance to vibration during operation. Vibration testing of telemetry system payloads requires a test fixture. Test fixture is used to transmit vibration from shaker to telemetry system payload. The payload of telemetry system to be tested is a tubular. The test fixture in this study was designed using SolidWorks software. The material used for manufacture of test fixture is aluminum. Aluminum material was chosen because it has good rigidity with a relatively light mass. Stiffness and mass properties affect to natural frequency value of test fixture, which must be greater than the frequency range of operating telemetry system. Data collection uses two accelerometers placed on test fixture. Sine sweep vibrations are given from 5 Hz to 2000 Hz with a constant amplitude of 1 g and a sweep rate of 1 octave/minute. The test produces three peaks that they are candidates as natural frequencies, i.e at a frequency of 1532 Hz with an amplitude of 2.898 g, a frequency of 1706 Hz with an amplitude of 6.582 g, and at a frequency of 1806 Hz with an amplitude of 6.472 g. From those three natural frequencies, the second natural frequency at 1706 Hz is the most critically because it has the largest response value.
Implementasi Load Balancing dengan HAProxy di Sistem Informasi Akademik UIN Sunan Kalijaga Wirawan, Adi; Gatra, Rahmadhan; Hidayat, Hendra; Prasetyawan, Daru
JISKA (Jurnal Informatika Sunan Kalijaga) Vol. 9 No. 1 (2024): Januari 2024
Publisher : UIN Sunan Kalijaga Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/jiska.2024.9.1.39-49

Abstract

Efficiently managing academic information systems (AIS) is essential for educational institutions to provide reliable services to students and faculty. This research explores the integration of HAProxy load balancing and file synchronization techniques to optimize the performance of AIS. HAProxy is employed to distribute incoming requests across multiple backend servers, and the backend will call web service to access the data saved in the database to facilitate seamless data sharing and access. Additionally, file synchronization mechanisms are implemented to maintain consistency across scripts used in the backend system. The study conducts performance evaluations and benchmarks to assess the impact of HAProxy load balancing and file synchronization on AIS responsiveness and reliability. The results reveal significant system scalability and fault tolerance improvements, reducing downtime and enhancing user experience. This research contributes to optimizing academic information systems, enhancing their ability to handle increased loads, and ensuring the efficient delivery of educational services.
Kesiapan Aparatur Sipil Negara (ASN) Terhadap Implementasi UU Pelindungan Data Pribadi (UU PDP): The Readiness of Civil Servants (ASN) for the Implementation of the Personal Data Protection Act (PDP Act) Nuruzzaman, Muhammad Taufiq; Wirawan, Adi; Muslimah, Ulfa Septi; Setyono, Yoga
Cyber Security dan Forensik Digital Vol. 8 No. 1 (2025): Edisi Mei 2025
Publisher : Fakultas Sains dan Teknologi UIN Sunan Kalijaga Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/csecurity.2025.8.1.4999

Abstract

Undang-undang Pelindungan Data Pribadi (UU PDP) telah disahkan oleh DPR pada 17 Oktober 2022 lalu menjadi UU No 27 Tahun 2022 tentang Pelindungan Data Pribadi. Salah satu pasalnya menyebutkan bahwa UU ini akan mulai berlaku 2 tahun setelah diundangkan yaitu 17 Oktober 2024. Artinya, semenjak UU ini berlaku pada Oktober 2024 nanti, maka sanksi-sanksi terhadap pelanggaran UU ini juga akan berlaku. Mengingat status tersebut maka sudah selayaknya untuk UIN Sunan Kalijaga memperhatikan dengan baik implementasi UU PDP tersebut. Pada penelitian ini, pengetahuan dan persiapan para ASN di UIN Sunan Kalijaga akan disurvei dan dievaluasi. Dari sisi persiapan, afeksi ASN terhadap implementasi ini akan ditanyakan. Dari total ASN sebanyak 1009 orang, ada 152 responden yang menjawab dengan lengkap. Survei dilakukan pada November dan Desember 2024. Hasil dari survei menunjukkan bahwa secara umum responden dalam hal ini adalah ASN di UIN Sunan Kalijaga sudah cukup memahami tentang keberadaan dan konsekuensi dari UU PDP ini. Akan tetapi, mereka juga banyak yang menyatakan bahwa UIN Sunan Kalijaga sebagai institusi belum siap untuk menghadapi konsekuensinya. Oleh karena itu, perlu dilakukan sosialisasi ulang dan penambahan infrastruktur keamanan informasi agar tidak terkena jerat pidana maupun perdata di kemudian hari. Analisis data juga menunjukkan bahwa tidak ada perbedaan pengetahuan dan afeksi untuk beberapa kelompok responden sehingga kegiatan-kegiatan terkait implementasi UU PDP harus melibatkan semua pihak dan semua level jabatan. Kata kunci: Personal Data Protection Act, UIN Sunan Kalijaga, Information Security ------------------------------- Abstract The Personal Data Protection Act (PDP Act) was enacted by the Indonesian House of Representatives on October 17, 2022, becoming Law No. 27 of 2022 on Personal Data Protection. One of its articles states that the law will take effect two years after its promulgation, specifically on October 17, 2024. This means that starting from October 2024, the sanctions for violations of this law will also come into force. Given this status, it is imperative for UIN Sunan Kalijaga to carefully consider the implementation of the PDP Act. In this study, the knowledge and preparedness of civil servants (ASN) at UIN Sunan Kalijaga were surveyed and evaluated. Regarding preparedness, the affective response of the civil servants toward the implementation of this law was assessed. Out of a total of 1,009 civil servants, 152 respondents provided complete responses. The survey was conducted in November and December 2024. The results of the survey indicate that, in general, the respondents, who in this case are civil servants at UIN Sunan Kalijaga, have a reasonable understanding of the existence and implications of the PDP Act. However, many also expressed that UIN Sunan Kalijaga as an institution is not yet prepared to face its consequences. Therefore, further dissemination and the enhancement of information security infrastructure are necessary to avoid criminal or civil liabilities in the future. Data analysis also shows that there is no significant difference in knowledge or affective response across various groups of respondents. Hence, activities related to the implementation of the PDP Act must involve all parties and all levels of positions within the institution. Keywords: Personal Data Protection Act, UIN Sunan Kalijaga, Information Security
Preliminary Fault tree Analysis of Landing Gear Control and Warning for LSA 02 Motorized Glider Type Aircraft Wirawan, Adi; Pranoto, Fuad Surastyo
Indonesian Journal of Aerospace Vol. 19 No. 2 (2021)
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30536/j.jtd.2021.v19.a3574

Abstract

In this paper, the authors present an approach of reliability analysis to analyze the landing gear control and warning system, which is planned to be installed on LSA-02 aircraft. The reliability analysis will use fault tree analysis as starting point to investigate what is the top undesired event which might occur in this system. The construction of causal tree analysis offers a framework privileged to the deductive analysis, which consists of seeking the various possible combinations of events, leading to the occurrence of a top undesired event. The fault tree analysis shows that the top undesired event for this system is when the landing gear is commanded to extended, the system fails to extend the landing gear, and warning system is failed to operate.
Pengaruh Digital Marketing, Brand Image, Dan E-Wom Terhadap Kepuasan Pelanggan Generasi Z Melalui Variabel Keputusan Pembelian Pada Produk Mobil Listrik Byd Wirawan, Adi; Madiawati, Putu Nina
eProceedings of Management Vol. 12 No. 6 (2025): Desember 2025
Publisher : eProceedings of Management

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Penelitian ini mengkaji pengaruh digital marketing, brand image, dan electronic word of mouth (E-WOM) terhadapkepuasan pelanggan pada pengguna mobil listrik BYD dari Generasi Z, dengan keputusan pembelian sebagai variabelmediasi. Responden merupakan individu yang mengeluarkan lebih dari IDR 10 juta per bulan dan memiliki pengalamanmembeli produk BYD. Analisis data dilakukan menggunakan metode Partial Least Squares Structural EquationModeling (PLS-SEM) untuk menguji hubungan antar variabel. Hasil penelitian menunjukkan bahwa digital marketingdan brand image memiliki pengaruh signifikan terhadap keputusan pembelian sekaligus kepuasan pelanggan.Sebaliknya, E-WOM tidak memberikan pengaruh signifikan terhadap keputusan pembelian dan hanya berkontribusikecil terhadap kepuasan. Keputusan pembelian terbukti berperan sebagai mediator yang penting dalam hubungan digitalmarketing dan brand image dengan kepuasan pelanggan. Temuan ini menegaskan pentingnya penerapan strategipemasaran digital yang efektif, inovatif, dan penguatan brand image yang konsisten sebagai upaya berkelanjutan untukmeningkatkan kepuasan, mempertahankan konsumen, serta memperluas pangsa pasar mobil listrik di segmen GenerasiZ.Kata Kunci: Digital Marketing, Brand Image, E-WOM, Keputusan Pembelian, Kepuasan Pelanggan, Generasi Z
Integration of Regression Analysis and Spatial Interpolation in Multi-Sensor Soil Calibration Optimization Based on RS485 to Support Precision Agriculture Priyonggo, Budi; Hafidz, Muhammad; Azadi, Athoillah; Wirawan, Adi; Nucholis, Jati; Muharfiza, Muharfiza; Jahari, Mahirah
Jurnal Keteknikan Pertanian Tropis dan Biosistem Vol. 14 No. 1 (2026): April 2026
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jkptb.2026.014.01.13

Abstract

Technological developments provide significant opportunities to utilise measurement equipment to enhance the effectiveness and efficiency of agricultural production. Accurate soil content measurement is very important for evaluating soil quality, helping farmers understand soil conditions and take appropriate steps to improve or maintain it. Calibration is required to ensure that the measuring instruments used provide accurate readings. The objective of this research was to calibrate the soil comprehensive sensor type RS485. The parameters tested are WET sensor, pH sensor, and temperature sensor. Data analysis was conducted using spatial interpolation, linear regression, and multiple linear regression. The calibration results obtained the calibration function  (R2 0.9566) for the WET sensor, (R2 0.9845) for the pH sensor, and  (R2 0.9963) for T sensor. The results of the spatial interpolation analysis using the calibration function indicate an improvement in the accuracy between the tested sensor and the calibrator compared to before calibration. The improvement in the accuracy of the parameter values was obtained by performing multiple linear regression analysis involving all sensors. The equations WETe4, pHe4, and Te4 were chosen as the best estimated equations that can improve the accuracy of sensor readings. The results of spatial interpolation analysis of the functions WETe4, pHe4, and Te4 showed a better improvement in accuracy compared to the calibration function. The equations WETe4, pHe4, and Te4 can be used as alternative functions to approximate the correct values in the use of soil comprehensive sensor type RS485. The spatial interpolation analysis conducted can provide an illustration of values based on color distribution to understand of the distribution of those values.
Co-Authors Budi Priyonggo Gatra, Rahmadhan Hendra Hidayat Jahari, Mahirah Muhammad Hafidz, Muhammad Muharfiza, Muharfiza Muslimah, Ulfa Septi Nucholis, Jati Nugroho, Yudha Agung Nuruzzaman, Muhammad Taufiq Pranoto, Fuad Surastyo Prasetyawan, Daru Pratama, Mikhael Gilang Pribadi P. Putu Nina Madiawati Setyono, Yoga Syamsiar, Syamsiar Ula, Nur Mufidatul Wijaya, Yusuf Giri