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Implementation of Design Thinking Method on User Interface Design of Digital Police Information System Application (SIPOLDI) Yuliani, Sari; Fadilah, Evi
International Journal of Education, Information Technology, and Others Vol 7 No 4 (2024): International Journal of Education, information technology   and others (IJEIT)
Publisher : Peneliti.net

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Abstract

This research aims to design the User Interface of the POLDA Digital Information System by implementing the Design Thinking method. In the research, the Design Thinking method was used. Design Thinking is an innovative approach that focuses on human needs, adopted from design practices, and integrates aspects such as user needs, technical possibilities, and success requirements. The results showed several key issues, including difficult system navigation, suboptimal document search features, and the absence of automatic notifications. These issues were the main concerns in the user interface design, and solutions to these issues included simplifying navigation, developing a more efficient search feature, and adding automated notification elements. By implementing these solutions, SIPOLDI is expected to improve the user experience of this application.
Composite Encapsulating Agent for NaFeEDTA Microencapsulation Using Spray Drying Method Handayani, Noer Abyor; Aryanti, Nita; Haryani, Kristinah; Hargono, Hargono; Adina, Alifia Rizki; Yuliani, Sari; Adristy, Vania Zulfa
Reaktor Volume 25 No.2 August 2025
Publisher : Department of Chemical Engineering, Faculty of Engineering, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/reaktor.25.2.%p

Abstract

Iron microencapsulation is one of the solutions to protect iron from reacting with other substances that result in quality declines of fortified food products. The coating materials used should be appropriate for the specified encapsulation process. This study combined glucomannan and maltodextrin as coating materials and added HPMC as an additive to encapsulate NaFeEDTA. The results showed that such a combination could increase the encapsulation efficiency. The morphologies of the resulting microcapsules obtained from four formulations applied in this study were identical; numerous wrinkles appear on the particle’s surfaces due to the presence of HPMC. All formulations had a narrow size distribution with an average particle size between 105 and 111 µm, thermal resistance up to a temperature of ± 200°C, and the same functional groups but with different intensities. The NaFeEDTA included in all formulations had a bioavailability value of 2.3 - 2.9%. The best formulation, based on the gastrointestinal digestion simulation, was shown by the formulation with a glucomannan:maltodextrin ratio of 2:3 (in 1% w/v coating material) with a release percentage of 64.28% in SGF solution and an increase of 2.27% in SIF solution. To prevent anemia, ± 400 mg of iron microcapsules resulting from the best formulation in this study are required to meet 75% of the daily intake.