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Determining Factors to Enhanced Oil Mist Filter Efficiency Using CFD Modeling
Hee-Jae Shin(신희재) 한국기계가공학회 2021 한국기계가공학회지 Vol.20 No.10
Small drops in gas cause some problems for downstream equipments such as turbine, compressor and etc. In some cases, we are obliged to remove hazardous liquid mist from gas. In order to remove water or other liquids from the gas, there are some equipments like mesh mist eliminator and vane-plate mist eliminator. oil mist filter is a kind of liquid eliminator equipments used to remove the liquid with 1-10um droplet diameter from the gas. In this paper is determine the factors affecting the oil mist filter efficiency using CFD. length and angle of the filter were considered and the results and compare the results of the efficiency tests, showed error of less than 3%. optimum filter can remove more than 87.3% between 1 and 10um of oil mist.
외국인 학습자의 한국어 읽기 숙달도와 동기에 대한 분석
신희재 ( Hee Jae Shin ) 이중언어학회 2013 이중언어학 Vol.52 No.-
This study aimed to investigate the relationship between Korean learners` reading motivation and their proficiency when they learn Korean as a second language. At the beginning of the semester, a 28-item five-point Likert scale questionnaire, which was revised from “Motivation for Reading Questionnaire” by Mori(2002), was administered in Korean or English as a means of exploring students` Korean language reading motivation from 98 Korean learners. The data for this study suggest that motivation to read in Korean may be categorized into four components, namely Intrinsic Value of Reading, Extrinsic Utility Value of Reading, Importance of Reading, and Reading Efficacy. The result showed that the higher group had higher reading motivation compared to lower students in general. In particular, the higher group responded high percent in the components such as Intrinsic Value of Reading, and Reading Efficacy. It is required that teachers should study to increase lower group students` motivation in particular in order to enhance their reading performance and engagement in reading.(Sungkyul University)
메타버스 플랫폼을 활용한 도로주행 트랜스퍼 크레인 개발
신희재 ( Hee-jae Shin ),이우혁 ( Woo-hyuk Lee ),장현서 ( Hyeon-seo Jang ),최병근 ( Byoung-geun Choi ) 한국정보처리학회 2022 한국정보처리학회 학술대회논문집 Vol.29 No.2
최근 비대면 수요의 증가와 함께 유통·물류산업은 배송서비스 품질 향상을 위해 전략을 세워왔고, 퀵커머스 배송과 같은 빠른 배송서비스가 일상화되자 소비자의 배송서비스의 품질에 대한 기대치도 높아졌다. 이제는 뉴노멀 시대에 접어들며, 수요 불확실성에 대응할 혁신적 기술이 요구된다. 본 논문에서는 배송서비스 품질 향상 전략으로 도로주행 트랜스퍼 크레인을 메타버스 플랫폼을 통해 제안한다. 트랜스퍼 크레인은 도로의 정체와 상관없이 화물운송이 가능하여 배송서비스 속도 향상과 함께 도로 혼잡비용 감소 등 여러 부가적인 효과를 기대해 볼 수 있다.