COVID-19 감염완화를 위한 환기량 증가 시 에너지소비량 변화 추정

임가은 ( Lim Ga-eun ),서동현 ( Seo Dong-hyun ) 충북대학교 건설기술연구소 2023 建設技術論文集 Vol.42 No.1

It is effective when ventilation is increased to prevent viral infection such as COVID-19 indoors. However, an increase in the amount of ventilation inevitably increases the consumption of heating and cooling energy. In this study, the change in energy consumption was estimated when ventilation was increased to prevent COVID-19 infection using the eQUEST prototypical office building model and typical weather data files developed by Chungbuk National University. As a result of the simulation, when the ventilation rate standard of the building increased by 5%, the rate of increase in energy consumption increased by 3.98% in the Central 1 area, 3.81% in the Central 2 area, 2.76% in the Southern area, and 2.15% in the Jeju area. In the next step, after applying heat recovery ventilator (ERV) to minimize the increase in energy consumption due to the increase in ventilation, when the ventilation rate increases by 5%, 0.99% in the Central 1 region, 0.96% in the Central 2 region, 0.58% in the Southern region, and 0.57% in the Jeju region. According to the experimental results, if the ventilation rate is increased by 5% compared to the existing ventilation rate regulation, the annual energy consumption increases by about 2~4% depending on the climate region. However, if ERVs are installed, it is estimated that the virus infection rate can be reduced by recovering most of the energy due to the increase in ventilation and consuming less than 1% of additional energy per region.

현관문용 스마트 보안시스템 구현

유연주(Yeon Ju Yoo),임가은(Ga Eun Lim),권영만(Young man Kwon) 한국IT마케팅학회 2015 한국IT마케팅학회 논문집 Vol.1 No.1

Recently, South Korea types of furniture due to a change in the society has become diverse. Even though a trend that a growing number of one person households among them, these one-person households, the trees are one of the era, naturally crimes aimed at single home has increased. In this way, it has become increasingly have more and more big crime anxiety 1 or ward that increased, more of the home is not a safe place, is urgent measures for one or ward safety. Therefore, in this paper, these one-person households using Arduino for socially vulnerable, was the design and implementation of entrance door security system.. In other words, it is a smart security system that can sound the alarm sound while watching the distance between the people who are standing in front of the front door in conjunction with Ado~uino and mobile phone. Through these systems as well as psychological threats one-person households, and are expected to also help physical threats, Further we expect also that the number of contributions to lower crime rate country. In addition, you can add such as the future to 112 features and notification function, even to try to give an effective support to users of crime prevention.

소셜커머스와 패키지여행을 결합한 Tour Social Commerce 어플리케이션

유연주(Yeon Ju Yoo),임가은(Ga Eun Lim),권영만(Young man Kwon) 한국IT마케팅학회 2015 한국IT마케팅학회 논문집 Vol.1 No.1

In some of the reasons for all the people to enjoy for the first time to people and travel the travel, package travel is an attractive commodity. Since the 1990s, for overseas travel liberalization of government, these packages goods, was released efficiently and economically be able to travel, to the consumer, became more limelight so. However, travel companies that provide package products because it is a company for the purpose of profit creation, by expanding the package option is only toward the high demand travel, have the disadvantage of only having a narrow travel selection. Therefore, in this paper, for people who want a variety of cultural experiences, and try to provide a wide travel information of more width and the concept of social commerce, combining the concept of a travel company that offers convenient travel planning services referred to as "Tour Social Commerce"We've developed an application. This complements the shortcomings of the existing package travel, and offer a wide travel information of more width, is expected to help travelers who have been frustrated to the existing package travel.

현관문용 스마트 보안시스템 구현

유연주(Yeon Ju Yoo),임가은(Ga Eun Lim),권영만(Young man Kwon) 한국IT마케팅학회 2015 한국IT마케팅학회 학술대회 Vol.2015 No.1

Recently, South Korea types of furniture due to a change in the society has become diverse. Even though a trend that a growing number of one person households among them, these one-person households, the trees are one of the era, naturally crimes aimed at single home has increased. In this way, it has become increasingly have more and more big crime anxiety 1 or ward that increased, more of the home is not a safe place, is urgent measures for one or ward safety. Therefore, in this paper, these one-person households using Arduino for socially vulnerable, was the design and implementation of entrance door security system.. In other words, it is a smart security system that can sound the alarm sound while watching the distance between the people who are standing in front of the front door in conjunction with Ado~uino and mobile phone. Through these systems as well as psychological threats one-person households, and are expected to also help physical threats, Further we expect also that the number of contributions to lower crime rate country. In addition, you can add such as the future to 112 features and notification function, even to try to give an effective support to users of crime prevention.

소셜커머스와 패키지여행을 결합한 Tour Social Commerce 어플리케이션

유연주(Yeon Ju Yoo),임가은(Ga Eun Lim),권영만(Young man Kwon) 한국IT마케팅학회 2015 한국IT마케팅학회 학술대회 Vol.2015 No.1

In some of the reasons for all the people to enjoy for the first time to people and travel the travel, package travel is an attractive commodity. Since the 1990s, for overseas travel liberalization of government, these packages goods, was released efficiently and economically be able to travel, to the consumer, became more limelight so. However, travel companies that provide package products because it is a company for the purpose of profit creation, by expanding the package option is only toward the high demand travel, have the disadvantage of only having a narrow travel selection. Therefore, in this paper, for people who want a variety of cultural experiences, and try to provide a wide travel information of more width and the concept of social commerce, combining the concept of a travel company that offers convenient travel planning services referred to as "Tour Social Commerce"We've developed an application. This complements the shortcomings of the existing package travel, and offer a wide travel information of more width, is expected to help travelers who have been frustrated to the existing package travel.

니트로아민계 고에너지 물질의 결정 성장 분자 모델링

심홍민(Hong-Min Shim),이은애(Eun-Ae Lee),임가은(Ga-Eun Lim),김재경(Jae-Kyeong Kim),한상근(Sang-Keun Han),채주승(Joo-Seung Chae),이근득(Keun-Deuk Lee),구기갑(Kee-Kahb Koo) 한국추진공학회 2015 한국추진공학회 학술대회논문집 Vol.2015 No.11

결정 형상은 니트로아민계 고에너지 물질의 열 및 물리적 민감도에 영향을 주는 매우 중요한 물성 중 하나이다. 본 연구에서는 RDX와 HMX의 결정화시 용매와 과포화도가 결정성장 습성에 미치는 영향을 이해하기 위하여 분자 모델링 기법을 이용하여 결정형상을 예측하였다. 결정 성장 모델은 서로 다른 용액에서 성장하는 RDX의 성장 습성을 정확하게 모사하였으며 또한 HMX 결정화 공정에서 과포화도에 따라 HMX 결정의 종횡비가 증가하는 결정 성장도 잘 모사할 수 있음을 확인하였다. 결정면에서의 분자 거동을 고려한 상기 성장 모델은 니트로아민계 고에너지 물질의 결정 성장을 이해하는데 깊이 있는 이해를 제공해 주며 용매 선택과 과포화도 조절에 의한 결정 형상을 제어를 기대할 수 있다. Crystal shape is one of the most important characteristics that considerably affect a thermal and mechanical sensitivity of the nitroamine high energetic materials. In the present work, the molecular modeling on the prediction of crystal shapes of RDX and HMX was carried out where the effects of solvent and supersaturation on the growth habit were identified. The crystal growth model accurately predicts the growth habit of RDX that grow in different solvents, and it is also found to describe the change in aspect ratio of HMX crystals with respect to supersaturation. Such growth models that consider the kinetics of molecules on crystal faces provide an in-depth understanding of the crystal growth for the nitroamine high energetic materials and furthermore, are expected to modify crystal shapes by optimal solvent screening and supersaturation control.

COVID-19 감염완화를 위한 환기량 증가 시 에너지소비량 변화 추정

임가은, 서동현 충북대학교 건설기술연구소 2023 충북대학교 건설기술연구소 논문집 Vol.42 No.1

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