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All Journal TEKNIK Jurnal Produksi Tanaman Jurnal TIMES PROCEEDING IC-ITECHS 2014 JIET (Jurnal Ilmu Ekonomi Terapan) INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Jurnal Inovasi Hasil Pengabdian Masyarakat (JIPEMAS) Krea-TIF: Jurnal Teknik Informatika Jurnal Permukiman Losari : Jurnal Arsitektur, Kota dan Pemukiman JURNAL ABDIMAS TRIDHARMA MANAJEMEN JEEE-U (Journal of Electrical and Electronic Engineering-UMSIDA) Jurnal Ekonomi Jurnal Ilmiah Teknik Mesin, Elektro dan Komputer (JURITEK) Pusaka : Journal of Tourism, Hospitality, Travel and Business Event International Journal of Advanced Multidisciplinary Jurnal Spasial: Penelitian, Terapan Ilmu Geografi dan Pendidikan Geografi Applied Business and Administration Journal (ABAJ) International Journal of Sustainable Competitiveness on Tourism Barista : Jurnal Kajian Bahasa dan Pariwisata Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources) Informasi interaktif : jurnal informatika dan teknologi informasi Ecobankers : Journal of Economy and Banking International Journal of Universal Education
Mohamad Ridwan
Universitas Muhammadiyah Sukabumi
Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Physics Social Sciences Transportation Other

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The Effect Of Ease Of Accessibility, Transaction Security, And Product Quality On Purchasing Decisions For Electronic Devices Online In Jabodetabek Case Study: (Tokopedia Users In Millennials) Mohamad Ridwan; Sutopo, Sutopo
Jurnal Ekonomi Vol. 13 No. 02 (2024): Jurnal Ekonomi, Edition April - June 2024
Publisher : SEAN Institute

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

Abstract

In this technological era, the use of e-commerce in purchasing goods makes it very easy for consumers, including electronic purchases. This research aims to analyze the direct influence of the variables ease of access, transaction security, ease of accessibility, transaction security and product quality on online purchasing decisions for electronic devices in Jabodetabek with the research object being the millennial generation. as a research object. The approach used is quantitative with an associative method, where primary data is obtained through distributing questionnaires. The data analysis techniques used include descriptive statistics, descriptive statistics, and Structural Equation Modeling (SEM) analysis using the Partial Least Square (PLS) method, where all data is processed using the SmartPL application. The research results show that Ease of Accessibility (KA) has a P Values ​​value of 0.082, which shows a significant influence on the Purchase Decision of electronic devices (KPN) on Tokopedia. Transaction Security (KT) has a P Values ​​value of 0.057, which indicates a significant influence on purchasing decisions for electronic devices (KPN) on Tokopedia. Product Quality (KP) has a P Values ​​value of 0.077, which indicates a significant influence on purchasing decisions for electronic devices (KPN) on Tokopedia.
Secure Communication ECC-Based between IoT Device and Server Ruswiansari, Maretha; Kusumah, Febrianto Surya; Wasista, Sigit; Ridwan, Mohamad
invotek Vol 24 No 1 (2024): INVOTEK: Jurnal Inovasi Vokasional dan Teknologi
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/invotek.v24i1.1165

Abstract

The rapid development of the IoT (Internet of Things) demands speed and security of communication between connected entities via the Internet. A suitable communication protocol for this communication in terms of speed optimization is MQTT (Message Queuing Telemetry Transport). However, it has security limitations that make it vulnerable to third-party attacks. This research proposes an IoT communication system and server using the MQTT protocol and Elliptic Curve Cryptography (ECC) algorithms to secure communications. ECC efficiently uses computing resources and has a short key size compared to Rivest Shamir Adleman (RSA), so it is suitable for mutual authentication. In addition, data encryption uses the 128-bit Advanced Encryption Standard (AES), which has good security and computing efficiency. The study included testing the mutual authentication speed of ECC and RSA across different key sizes, demonstrating that ECC consistently outperformed RSA in execution time. This study also compared the speed of mutual authentication between ECC and RSA with key sizes of 256 and 3072 bits, respectively; ECC achieved an average speed of 117.33 ms, whereas RSA took 241.92 ms. Furthermore, this study was also tested for the level of security using ECC as a cryptographic algorithm. The system is tested for security by performing sniffing attacks, brute force attacks, replay attacks, and fingerprint matching accuracy by measuring the False Rejection Rate (FRR) and False Acceptance Rate (FAR). The most suitable threshold value is between 30 and 40 within an Equal Error Rate (ERR) between 20% and 30%. The overall testing results show that the system is time-efficient and resilient to attacks.
Increasing Students' Learning Motivation in Science Subjects Using Powerpoint Media at SDN 1 Kuala Pembuang II Ridwan, Mohamad; Fatchurrahman, M.; Rahmaniati, Rita
International Journal of Universal Education Vol. 2 No. 1 (2024): International Journal of Universal Education
Publisher : Institute for Research and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/ijue.v2i1.7511

Abstract

This research aims to determine the increase in learning motivation of students at State Elementary School 1 Kuala Pembuang II which has experienced very significant changes. This research is very rational because it uses a research method of five steps/development phases including; Analysis, Design, Development or Production, Implementation or Delivery, and Evaluations. Data collection techniques in research use test instruments. Data analysis uses quantitative. Learning media is a tool that is considered good in helping convey information, whether in the form of pictures, videos or readings packaged in PowerPoint form so that it can increase student learning motivation in any subject, especially Natural Sciences, to students at Kuala Pembuang II Elementary School. Analysis of the use of PowerPoint as a medium can be seen in two tables of research results which show that students are more happy, enthusiastic, and motivated to focus more on receiving information in Natural Sciences lessons.
Real-Time IoT-Integrated Ground Control Station (GCS) for Unmanned Aerial Vehicle (UAV) Monitoring System Lestari, Paramita Eka Wahyu; Ridwan, Mohamad; Ramadhan, Ridzki Fadillah; Nisfa, Faridatun
JEEE-U (Journal of Electrical and Electronic Engineering-UMSIDA) Vol. 9 No. 2 (2025): Oktober
Publisher : Muhammadiyah University, Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/jeeeu.v9i2.1710

Abstract

Conventional Ground Control Stations (GCS) for UAVs are often platform-bound (PC-only or Android apps), creating installation overhead and constraining mobility. This work introduces a browser-native, web-based GCS that runs across devices without prior installation and ingests MAVLink telemetry from a RadioLink Mini Pix V1.0 flight controller via 433 MHz UART radio telemetry, then streams decoded data to the UI over websocket/JSON. The system visualizes attitude (yaw, pitch, roll/IMU), GPS position and mapping, compass bearing, altitude, and flight status in real time, with user authentication and a structured landing/login flow. In controlled tests, the application delivered stable live visualization and accurate mapping during a 100 m out-and-back flight, with reported coordinates matching the route. Link-budget characterization across 95, 100, 180, 190, and 240 m showed the expected RSSI degradation with distance and a pronounced dip at 190 m, a practical safe range of ~100 m was identified where signal strength stayed >50% with low interference. Compared with PC or Android-based GCS, the proposed approach improves accessibility (zero-install, multi-device) and operational flexibility, while maintaining reliable real-time telemetry for mission monitoring.
ANALISIS KOMPARATIF EFISIENSI DAN KINERJA PROSESOR INTEL XEON 6 DAN AMD EPYC 9004 PADA LINGKUNGAN SERVER VIRTUALISASI Oktora, Andre; K, Irvan; K, Johanes H; Ridwan, Mohamad; Riwurohi, Jan Everhard
Jurnal TIMES Vol 14 No 2 (2025): Jurnal TIMES
Publisher : STMIK TIME

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Abstract

Peningkatan konsumsi daya pada pusat data global menempatkan efisiensi energi (performance-per-watt) sebagai metrik krusial dalam pemilihan prosesor server modern, terutama dalam lingkungan komputasi awan dan virtualisasi berbasis container. Penelitian ini bertujuan untuk menganalisis komparatif kinerja (throughput relatif) dan efisiensi energi () antara prosesor Intel Xeon 6 (arsitektur hybrid) dan AMD EPYC 9004 (arsitektur Zen 4 dengan 96 core) di bawah skenario peningkatan beban kerja container. Studi ini menggunakan pendekatan kuantitatif simulatif berbasis data sekunder, mengimplementasikan model matematis yang mereplikasi degradasi kinerja dan peningkatan konsumsi daya seiring penambahan jumlah container (10 hingga 100). Hasil simulasi menunjukkan bahwa AMD EPYC 9004 unggul secara signifikan. Prosesor ini tidak hanya mempertahankan throughput absolut yang lebih tinggi di seluruh beban kerja ( hingga 463.30 pada 100 container), tetapi juga menunjukkan skalabilitas yang lebih baik (degradasi minimal dari ). Keunggulan kinerja ini menghasilkan Efisiensi Energi () yang superior (mencapai 2.47), yang membuktikan bahwa arsitektur berdensitas inti tinggi mampu mengkompensasi TDP yang sedikit lebih tinggi, memberikan rasio performance-per-watt yang lebih ekonomis. Disimpulkan bahwa AMD EPYC 9004 merupakan pilihan yang lebih optimal bagi pengelola data center yang mencari solusi kinerja tinggi yang stabil dan efisien energi untuk beban kerja virtualisasi yang intensif.
Co-Authors Alamsyah, Denan Fajar Andalasari, Lilis Andi, Muhammad Ikhsan Ari Wijayanti Asdani Soehaimi Asriyanik Asriyanik . Atmawidjaja, Rudie Rachmat Budi Aswoyo, Budi Darmawan Sundayana Dendy Sundayana Diah Kirana Kresnawati, Diah Kirana Dwiyatni, Aulia Edwin Adriansyah Emrizal Fatchurrahman, M. Fitriani Agustin Gaffar, Mohammad Rizal Gunawan, Deril Dwi I Gede Puja Astawa I Gusti Agung Wahyu Adrian K, Irvan K, Johanes H Kafabih, Abdullah Kurniajaya, Moga Kusumah, Febrianto Surya Lestari, Paramita Eka Wahyu Linandar Tanuwijaya lucky valiant Maretha Ruswiansari, Maretha Merliana, Rizka MP, Alfyansyah Muhamad Lutfi Muhammad Rusli Nadziroh, Faridatun Nisfa, Faridatun Noviani, Bunga Cahya Nur Edy Suminarti Odang Rusmana Okkie Puspitorini, Okkie Oktora, Andre Pasaribu, Veta Lidya Delimah Puspa Eosina Raihan, Dafa Ramadhan, Ridzki Fadillah Rina Muthia Harahap, Rina Muthia Rita Rahmaniati Ruwirohi, Jan Everhard S.R Sinung Baskoro Sa'adah, Nihayatus Sabina, Clara Salwadilla, Ika Shafira Samuel Febriary Khristyson Sarumpaet, Erik Rolando Setiani, Reka Indah Sunarso Sugeng Sutopo Sutopo Tanuwijaya, Linandar Tatang Padmawidjaja Tri Budi Santoso valiant, lucky Wahyu, Gilang Arya Wasista, Sigit Windra Aini Y Siahaan, Rosna Yudha, Kurniawan Try