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Electrochemical component analysis of tap waters
유준재,최원경 한국공업화학회 2014 한국공업화학회 연구논문 초록집 Vol.2014 No.1
Todays, tap water was supplied for people’s daily life which is regenerated after special purification process for safety and cleanliness. The purification process was composed very complex steps, i.e. precipitation, neutralization, sterilization and deodorization etc., in a water treatment plant after gathering by catchment area. Although the water gathered at same catchment area, it should be represent different physicochemical properties with it has been treated at different process. In this study, we investigated the reasons why tap waters gathered from different regions have different properties. And analyze component of tap water to have different properties using cyclic voltammetry, pH meter and ORP meter as an electrochemical analysis.
무선 IoT 기반의 저전력 통신을 위한 Dynamic Queue 기술
지영민,유준재,서희 한국정보통신설비학회 2016 한국정보통신설비학회 학술대회 Vol.2016 No.09
Bluetooth Low Energy is the edge technology for the low power wireless communication. However BLE has a significant effect on the battery life time according to the type of application. In this paper, we introduce the Dynamic Queue model to improve the cost of wireless communication. Dynamic Queue helps to adopt multi-packet structure in a single packet and support priority based policy to send the data based on BLE.
대용량 분산 클러스터 기반의 시계열 빅-데이터 처리 및 수집 시스템
지영민,유준재,서희 한국정보통신설비학회 2016 한국정보통신설비학회 학술대회 Vol.2016 No.09
The technology of IoT which began in the sensor networks generate numerous sensing data from a variety of physical environments to virtual world. There are many types of IoT device used the sensors based on application. They usually create time series data that people can use to make more sensible decision. Things produced various data which is generated and stored as time based and then saved them to the existing database. In this paper, we introduce the system architecture for the large distributed cluster based system for the processing and collecting of big-data of time-series to meet the goal of performance using Redis Cluster and OpenTSDB.