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최경락,김민중,김영민 한국인터넷방송통신학회 2023 International Journal of Internet, Broadcasting an Vol.15 No.3
With the development of autonomous driving technology, as the use of software in vehicles increases, the complexity of the system increases and the difficulty of development increases. Developments that meet ISO 26262 must be carried out to reduce the malfunctions that may occur in vehicles where the system is becoming more complex. ISO 26262 for the functional safety of the vehicle industry proposes to consider functional safety from the design stage to all stages of development. Specifically at the software level, the requirements to be complied with during development and the requirements to be complied with during verification are defined. However, it is not clearly expressed about specific design methods or development methods, and it is necessary to supplement development guidelines. The importance of analysis and verification of requirements is increasing due to the development of technology and the increase of system complexity. The vehicle industry must carry out developments that meet functional safety requirements while carrying out various development activities. We propose a process that reflects the perspective of system engineering to meet the smooth application and developmentrequirements of ISO 26262. In addition, the safety analysis/verification FMEA processforthe safety of the proposed ISO 26262 function was conducted based on the FCAS (Forward Collision Avoidance Assist System) function applied to autonomous vehicles and the results were confirmed. In addition, the safety analysis/verification FMEA process for the safety of the proposed ISO 26262 function was conducted based on the FCAS (Forward Collision Avoidance Assist System) function applied to the advanced driver assistance system and the results were confirmed.
최경락,김봉신,한은희,하정석,송재기,장영호,홍광표,김영국 한국약용작물학회 2018 한국약용작물학술대회 발표집 Vol.2018 No.10
Background : Senna tora L. is an herbaceous annual foetid herb. There were many components s uch as emodine, chrysophanol, aloe-emodine, physcion, rhein, chrysophanic acid, obtusin, aurantio-obtusin, anthraquinone compounds. The seeds and leaves are used to treat skin disease and its see ds can be utilized as a laxative, as well as to good for the eyes. This experiment was focused on the storage characteristics for searching better condition. That's why it is very useful for making oriental medicine. It is needed for Good Agricultural Practices (GAP) certification. It is one of ce rtification condition. Many medicinal plants have almost no their storage condition for GAP. Methods and Results : There are two kinds of treatment for storage test. One is temperature. The other is time period. The temperature treatments are room temperature and 4℃. Time of storage periods are four parts. The first time period for storage is zero month. The Second is until three month. and the third is until six month. The fourth is until nine month. We used polyethylene for packing materials. We investigated moisture, ash, bacteria, Escherichia coli, Staphylococcus aureus, mold and chromaticity by them. The value of moisture and ash are under standard of permission as 7.8 and 5.1 respectively. There were almost no significance about test microorganism in the storage temperature condition. There were statistical significance on the bacteria and mold without Escherichia coli, Staphylococcus aureus according to storage period. In terms of stroage temperature and period interaction, there was statistical significance on the Escherichia coli. In addition, the mycotoxin (aflatoxin) was analyzed for nine month storage Senna tora L. The total aflatoxin value were 3.307 ppb and 3.334 ppb in storage temperature and period respectively Conclusion : About the characteristics of Senna tora L. in accordance with the storage treatments, there were differences along with time period of storage about the bacteria and mold. There was no aflatoxin until nine month storage.