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All Journal International Journal of Electrical and Computer Engineering BERKALA FISIKA Bulletin of Electrical Engineering and Informatics Jurnal Fisika Unand Telaah Science and Technology Indonesia Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Ilmu Fisika Journal Of Management Science (JMAS) Journal of Technomaterial Physics Journal of Artificial Intelligence and Digital Business
Bambang Widiyatmoko
Group THz-Photonics- Bidang Instrumentasi Fisis dan Optoelektronika Pusat Penelitian Fisika – Lembaga Ilmu Pengetahuan Indonesia (LIPI)
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering 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 Materials Science & Nanotechnology Physics

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PENGEMBANGAN SISTEM MONITORING ALIRAN DAN KUALITAS AIR SUNGAI MENGGUNAKAN PELAMPUNG BERBASIS SMART ENVIRONMENT Nasution, Subhan Fahmi; Harmadi, Harmadi; Suryadi, Suryadi; Widiyatmoko, Bambang
Jurnal Ilmu Fisika Vol 16 No 1 (2024): March 2024
Publisher : Jurusan Fisika FMIPA Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jif.16.1.1-12.2024

Abstract

Efficient and accurate river water quality monitoring is needed to support laboratory testing based on on-site sampling. Therefore, we have developed a monitoring system for river flow and water quality using sensor-equipped buoys and the Internet of Things (IoT) concept. An ESP32 NodeMCU microcontroller integrated with WiFi and compatible with Arduino IDE is used in the system. The buoy is equipped with GPS to determine the position and flow speed and sensors to measure water quality parameters of pH and temperature. Data on position, flow velocity, and water quality parameters are transmitted over a WiFi network using the MQTT protocol. The data is recorded by the buoy and uploaded and displayed on the adafruit.io platform. Positioning was done by comparing the values displayed on the Neo-6M GPS with the Maps application on the smartphone. The results show that the GPS coordinate values are accurate. The water quality parameter values obtained have an error rate of 3.3% for the pH sensor and 1.02% for the temperature sensor. Thus, the system we have developed has the potential to be used as a substitute for field sampling-based river water quality monitoring systems.
Analysis of the Management of zakat and asn infaq in the City of Cilegon Banten Widiyatmoko, Bambang; Bahri, Syaeful; Syarifuddin, Efi
Junal Ilmu Manajemen Vol 7 No 1 (2024): January: Management Science and Field
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/jmas.v7i1.410

Abstract

One of the pillars of Islamic philanthropy is Zakat. Undoubtedly, it must be done correctly and comply with applicable sharia. The aim of this research is to describe how Zakat and Infaq are managed for ASN Cilegon City and how effective and efficient Zakat management is in Baznas Cilegon City Banten. The approach taken in this research uses a qualitative approach with the literature study method (case study). Data sources in research collect two sources, namely primary and secondary. Primary informants directly include (the community, ASN and Cilegon City Baznas administrators). Secondary, namely strengthening data from primary such as: Journal articles, E-Books, Online Proceedings, magazines, newspapers and other internet media. Meanwhile, data collection techniques include observation interviews, documentation and triangulation. The analysis technique used in this research is using Miles and Huberman's theory of data reduction, data display, data verification and drawing conclusions. So, this research resulted in optimizing the distribution of Baznas, the efficiency of distributing Zakat funds, the percentage of distribution efficiency levels, the percentage of Cilegon City Zakat management. So, it can be concluded that Cilegon City Baznas maximizes existing human resources (HR) both internally and externally to Baznas itself. Research findings show that optimization can be said to be quite optimal. For 2018–2022, the average distribution efficiency of zakat funds is 95.8%.
Investigation of Transmission and Reflection of Single Mode Fiber Bragg Grating Irawan, Dedi; Saktioto; Azhar; Hanto, Dwi; Widiyatmoko, Bambang
Jurnal Penelitian Pendidikan IPA Vol 10 No 6 (2024): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i6.7209

Abstract

The use of Single Mode Fiber Bragg Grating (SMFBG) has been increasing in recent years due to its compact size, low cost, fast response and immunity to electromagnetic interference. It is commonly integrated into medical devices for long-distance light transmission and collection due to its high flexibility, low propagation loss, compatibility and tolerance to electromagnetic interference. SMFBG is a device made of thin glass material that is used as a medium for transmitting information in the form of light signals sourced from lasers or LEDs from one location to another. It consists of 3 main components, namely core with a certain grating, blanket (cladding) and jacket (coating). The advantage of optical fiber is that the data when transmitted is converted into light so as to reduce the risk of data damage. Other advantages include very small size, minimal interference with electromagnetic waves, resistance to temperature changes, attenuation when the transmission process is small enough, and large enough bandwidth. The orientation of this literature review is to understand the concept of optical fiber, the concept of reflection and refraction, and how light propagates in optical fiber.
Co-Authors Aditya Dwi Prasetio, Aditya Dwi Andi Setiono Azhar Azhar Azhar dedi irawan Dwi Bayuwati Dwi Hanto Dwi Hanto Fitmawati Fitmawati Harmadi Harmadi Harmadi Haryono, Wasis Husdi, Irwan Rawal Imam Mulyanto Iyon T. Sugiarto, Iyon T. Marwin, Azwir Muhammad Sahal Nasution, Subhan Fahmi Nelfyenny, Nelfyenny Prabowo Puranto Ramadhan, Khaikal Rodhiah, Salsa Ariani Rofianingrum, Mefina Y. Saktioto Saktioto Saktioto Samudra, Achdiyat Ilyasa Satrio, Teguh Suryadi Suryadi Sutoyo Sutoyo Sutoyo Syaeful Bahri Syarifuddin, Efi Syawal, Rio Mulya Thomas B. Waluyo, Thomas B.