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All Journal IJID (International Journal on Informatics for Development) International Journal of Applied Sciences and Smart Technologies
Ariyani Kusuma Dewi, Ariyani Kusuma
Pusat Sains Dan Teknologi Akselerator - BATAN Jl. Babarsari No.2, P.O. Box 6101 ykbb, Yogyakarta, Indonesia
Computer Science & IT Energy Engineering Industrial & Manufacturing Engineering

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Design and Implementation of Web-Based E-Learning with W3C Standardization Dewi, Ariyani Kusuma; Asyhab, Naufal; Yazid, Ahmad Subhan; Mulyanto, Agus
IJID (International Journal on Informatics for Development) Vol 2, No 1 (2013): IJID May
Publisher : Universitas Islam Negeri Sunan Kalijaga Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1347.417 KB) | DOI: 10.14421/ijid.2013.02104

Abstract

The development of Internet technology in education such as e-learning has increased significantly. This fact encourages schools to maintain the quality of education by applying e-learning. E- learning is one of the tools to improve the efficiency and effectiveness of performances in teaching and learning. But many e-learning schools do not comply with the standardization of World Wide Web Consortium (W3C). Standardizing the Web has been ignored by the developers of the system. When the W3C is used as a standardization of the system, such a system could be accessed through many browsers. E-learning is a web-based system which is developed using the programming language PHP, and XHTML document types to manage MySQL database. The method is used of system development, namely the System Development Life Cycle (SDLC). The system design method with a functional approach is described using the DFD (Data Flow Diagram). While the modeling of the data base is described by the ERD (Entity Relationship Diagram). E-learning web-based for the school of the W3C standardization is accessible in all browsers as well. E-learning supports the distribution (upload and download) data of the document contains. E-learning is also capable to display online and the results of value for the students, consequently it can help in the learning process.
Evaluation of Tartrazine Solution as a Potential Gamma Dosimeter Material Arumbifa, Farhansyah Yunandani; Kurniawan, Deni; Diani, Desalsa Anggoro; Praja, Dika Bhakti; Ajri, Fauziah Ulfah; Dewi, Ariyani Kusuma; Ariyanti, Dhita
International Journal of Applied Sciences and Smart Technologies Volume 06, Issue 2, December 2024
Publisher : Universitas Sanata Dharma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24071/ijasst.v6i2.9283

Abstract

Radiation dosimetry plays a crucial role in various fields, including medical, industrial, and environmental applications. Accurate and reliable dosimeters are essential for measuring and controlling radiation exposure. This study aims to evaluate the stability of the food dye tartrazine as a potential gamma radiation dosimeter. The need for accessible and cost-effective dosimetric materials motivates the exploration of tartrazine's capabilities in this regard. This research investigates the response of tartrazine solutions under varying gamma radiation doses (0 to 3.118 kGy) using UV-Vis spectrophotometry to measure absorbance at a wavelength of 424 nm. The results demonstrate a significant decrease in absorbance with increasing radiation doses, indicating decolorization due to oxidative reactions triggered by hydroxyl radicals (OH·) generated during irradiation. Tartrazine, which imparts a yellow color through its diazenedyl (-N=N-) bonds, undergoes bond cleavage upon gamma radiation exposure, resulting in a permanent color change. Further analysis reveals that tartrazine-based dosimeters exhibit optimal stability for less than four weeks. Therefore, tartrazine solution can serve as an effective gamma radiation dosimeter for short-term applications. This study provides a foundation for developing new dosimetric materials, emphasizing the importance of ongoing research to enhance radiation safety and measurement accuracy.Keywords: Dosimeter, Gamma Irradiation, Radiation, Stability, Tartrazine.
Co-Authors Ahmad Subhan Yazid Ajri, Fauziah Ulfah Ariyanti, Dhita Arumbifa, Farhansyah Yunandani Asyhab, Naufal Deni Kurniawan, Deni Diani, Desalsa Anggoro Ida Ayu Putu Sri Widnyani Praja, Dika Bhakti