웨어러블 디바이스 기반 스마트 재활 지원 시스템의 구축

김지언(Ji Eon Kim),반 바타나(Van Vathana),정창원(Chang Won Jeong),주수종(Su Chong Joo) 한국정보과학회 2016 한국정보과학회 학술발표논문집 Vol.2016 No.6

국내산 소나무로 제조된 APMP 특성 연구

이지영(Ji-Young Lee),남혜경(Hyegeong Nam),김철환(Chul-Hwan Kim),권솔(Sol Kwon),박동훈(Dong-Hun Park),주수연(Su-Yeon Joo),이민석(Min-Seok Lee) 한국펄프·종이공학회 2016 펄프.종이技術 Vol.48 No.1

Alkaline Peroxide Mechanical Pulping (APMP) of Pinus densiflora harvested from domestic mountains was explored. APMP contributes to various advantages including pulp quality, elimination of the need for a bleaching process, and energy savings. Sequential treatment of impregnation of bleaching chemicals and refining not only overcome the concern of alkaline darkening of wood chips during chemical impregnation, but it also brightens the chips to the desired brightness levels suitable for writing and printing papers. APMP pulping from Pinus densiflora was greatly influenced by the dosage levels of hydrogen peroxide and sodium hydroxide. Alkaline peroxide treatment was carried out by applying one of three levels of hydrogen peroxide (1.5, 3, and 4.5% based on the oven-dried weight of the wood chips) and one of three levels of sodium hydroxide (1.5, 3, and 4.5% based on the oven-dried weight of the wood chips). Other chemicals including a peroxide stabilizers and metal chelation were constantly added for all treatments. Chemical treatment with a liquor-to-wood ration of 9:1 was carried out in a laboratory digestor. Compared to BTMP, APMP pulping displayed outstanding characteristics including the less requirement of refining energy, the better improvement of tensile strength, the more reduction of shives, and the greater increase of pulp brightness. In particular, when 4.5% of hydrogen peroxide with impregnation during 90 minutes was used, the brightness of APMP reached 64.9% ISO. Even though bulk of APMP was decreased with the increase of sodium hydroxide, a better and improved balance could be achieved between optical and strength properties. The spent liquor obtained from the discharge of the impregnation process at the dosage level of 4.5% hydrogen peroxide exhibited an equal level of residual peroxide with BTMP. In conclusion, APMP pulping showed successful results with Pinus densiflora due to its better response to the development of optical and physical properties compared to TMP pulping.

색채 환경 기반의 인체 반응 정보 측정 시스템

김지언 ( Ji-eon Kim ),정창원 ( Chang-won Jeong ),주수종 ( Su-chong Joo ) 한국인터넷정보학회 2016 인터넷정보학회논문지 Vol.17 No.2

색채 환경에 따라 인지반응의 상관관계를 분석한 결과가 다양한 산업분야에 적용되고 있다. 특히, 의학 분야에서 색채 환경기반 생체신호를 수집하여 환자 상태의 파악과 치료 그리고 뇌활동의 규명에 관련된 연구가 활발하게 진행되고 있다. 그러나 기존 연구들은 색채조명 또는 LED를 이용한 색채 환경을 구축하여 다양한 실험을 진행하고 있으나 다른 광원에 노출 되어 심리적인 영향을 주는 문제점을 갖고 있다. 따라서, 본 논문에서 제안하는 시스템은 HMD(Head-Mounted-Display)를 이용하여 피험자에게 완벽한 색채 환경조건을 제공하고자 한다. 그리고 인체반응정도 측정을 위해 기억력-주의력 테스트하는 동안 BMS(Bio-Medical-System)으로 생체정보를 수집하여 색채별 인체반응정도 측정뿐만 아니라 심리적인 변화에 대한 상관관계를 확인할 수 있는 시스템을 제안한다. 제안한 시스템을 통하여 수집하는 생체정보는 심전도(ECG), 호흡(Respiration), 산소포화도(SpO2), 임피던스(Bio-Impedance), 혈압(Blood-Pressure) 이며 데이터베이스에 저장한다. 이와함께, 인체의 인지반응을 측정하기위해 기억력-주의력 테스트는 앱으로 구현하여 색채 조건별 인지반응 정보를 측정하고 결과를 확인 할 수 있다. 제안한 시스템을 통하여 수집된 인체반응정보를 활용하여 생리학적 정보의 정량화하는 연구를 진행할 수 있으며, 색채 환경과 생리학적 정보의 상관관계를 분석하여 의학적 진단 및 치료에 응용이 될 것으로 기대한다. 향후 연구로 구축한 시스템을 통해 수집된 데이터를 분석 및 시각화 기능을 추가하고, 치매 질환의 예측 및 치료를 위한 시스템으로 확장하여 재활프로그램으로서의 유효성을 평가하고자 한다. The result of analyzing the cognitive reaction due to the color environment has been applied to various filed especially in medical field. Moreover, the study about the identification of patient`s condition and examination the brain activity by collecting the bio-signal based on the color environment is being actively conducted. Even though, there were a variety of experiments by convention the color environment using a light or LED color, it still has a problem that affects the psychological information. Therefore, our proposed system using a HMD (Head Mounting display) to provide a completed color environment condition. This system uses the BMS(Biomedical System) to collect the biometric information which responds to the specific color condition and the human body response information can be measured by the development the Memory and Attention test on Mobile phone. The collection of Biometric information includes electro cardiogram(ECG), respiration, oxygen saturation (Sp02), Bio-impedance, blood pressure will store in the database. In addition, we can verify the result of the human body reaction in the color environment by Memory and Attention application. By utilizing the reaction of the human body information that is collected thought the proposed system, we can analyze the correlation between the physiological information and the color environment. And we also expect that this system can apply to the medical diagnosis and treatment. For future work, we will expand the system for prediction and treatment of Alzheimer disease by analyzing the visualization data through the proposed system. We will also do evaluation on the effectiveness of the system for using in the rehabilitation program.

오일팜 바이오매스의 자원화 연구 V

이지영(Ji-Young Lee),김철환(Chul-Hwan Kim),성용주(Yong Joo Sung),남혜경(Hye-Gyeong Nam),박형훈(Hyeong-Hun Park),권솔(Sol Kwon),박동훈(Dong-Hun Park),주수연(Su-Yeon Joo),임현택(Hyun-Tek Yim),이민석(Min-Seok Lee),김세빈(Se-Bin Kim) 한국펄프·종이공학회 2016 펄프.종이기술 Vol.48 No.2

Global warming and climate change have been caused by combustion of fossil fuels. The greenhouse gases contributed to the rise of temperature between 0.6℃ and 0.9℃ over the past century. Presently, fossil fuels account for about 88% of the commercial energy sources used. In developing countries, fossil fuels are a very attractive energy source because they are available and relatively inexpensive. The environmental problems with fossil fuels have been aggravating stress from already existing factors including acid deposition, urban air pollution, and climate change. In order to control greenhouse gas emissions, particularly CO2, fossil fuels must be replaced by eco-friendly fuels such as biomass. The use of renewable energy sources is becoming increasingly necessary. The biomass resources are the most common form of renewable energy. The conversion of biomass into energy can be achieved in a number of ways. The most common form of converted biomass is pellet fuels as biofuels made from compressed organic matter or biomass. Pellets from lignocellulosic biomass has compared to conventional fuels with a relatively low bulk and energy density and a low degree of homogeneity. Thermal pretreatment technology like torrefaction is applied to improve fuel efficiency of lignocellulosic biomass, i.e., less moisture and oxygen in the product, preferrable grinding properties, storage properties, etc.. During torrefacton, lignocelluosic biomass such as palm kernell shell (PKS) and empty fruit bunch (EFB) was roasted under an oxygen-depleted enviroment at temperature between 200 and 300℃. Low degree of thermal treatment led to the removal of moisture and low molecular volatile matters with low O/C and H/C elemental ratios. The mechanical characteristics of torrefied biomass have also been altered to a brittle and partly hydrophobic materials. Unfortunately, it was much harder to form pellets from torrefied PKS and EFB due to thermal degradation of lignin as a natural binder during torrefaction compared to non-torrefied ones. For easy pelletization of biomass with torrefaction, pellets from PKS and EFB were manufactured before torrefaction, and thereafter they were torrefied at different temperature. Even after torrefaction of pellets from PKS and EFB, their appearance was well preserved with better fuel efficiency than non-torrefied ones. The physical properties of the torrefied pellets largely depended on the torrefaction condition such as reaction time and reaction temperature. Temperature over 250℃ during torrefaction gave a significant impact on the fuel properties of the pellets. In particular, torrefied EFB pellets displayed much faster development of the fuel properties than did torrefied PKS pellets. During torrefaction, extensive carbonization with the increase of fixed carbons, the behavior of thermal degradation of torrefied biomass became significantly different according to the increase of torrefaction temperature. In conclusion, pelletization of PKS and EFB before torrefaction made it much easier to proceed with torrefaction of pellets from PKS and EFB, leading to excellent eco-friendly fuels.

시맨틱 웹 서비스 기술을 위한 수행 온톨로지

오지훈,최병석,정영식,주수종,한성국,Oh, Ji-Hoon,Choi, Byeong-Seok,Jeong, Young-Sik,Joo, Su-Chong,Han, Sung-Kook 한국정보처리학회 2004 정보처리학회논문지B Vol.11 No.4

The Web Services descriptions such as DAML-S/OWL-S, BPEL4WS and WSMF focusing on the functional aspects of Web Services have limitations for the representation of the conceptual and semantic capabilities of Web Services, although WSMF is based on ontology and can represent the goal of Web Services. This paper proposes the new description formalism based on the competence ontology that can represent both functional and semantic aspects of Web Services. This paper also presents the integration and the composition of Web Services by means of Data Mediator(D-Mediator) and Control Mediator(C-Mediator) to mediate compositional in compatibility between heterogeneous Web Services. DAML-S/OWL-S, WSMF 및 BPEL4WS와 같은 웹 서비스 기술방식은 웹 서비스의 기능적(functionality) 측면만을 표현하고 있기 때문에, 웹 서비스(Web Service)의 개념적, 의미적 기능을 표현하기에는 한계가 있다. 본 연구에서는 웹 서비스의 기능적 측면과 의미적 측면을 통합적으로 표현하기 위해서 수행 온톨로지(Competence Ontology)를 구축하여 웹 서비스를 기술하기 위한 새로운 방법을 제시한다. 또한 시스템 내부적으로는 Data Mediator(D-Mediator)와 Control Mediator(C-Mediator)를 이용하여 서로 이질적인 서비스간의 상호연동 및 합성을 가능하게 한다.

Overexpression of a Ginseng UDP-Dependent Glycosyltransferase Resulted in Organ Fusion in Arabidopsis

Ngoc Quy Nguyen,Su Ji Joo(주수지),Ok Ran Lee(이옥란) 한국약용작물학회 2016 한국약용작물학회 학술대회논문집 Vol.2016 No.2