실내 공간 분석을 위한 보행 공간관계 모델

이슬지,이지영,Lee, Seul-Ji,Lee, Ji-Yeong 한국공간정보학회 2011 한국공간정보학회지 Vol.19 No.5

실세계의 도시에 대한 3차원 모델링은 도시계획과 의사결정을 하기 위하여 필수적인 작업이다. 또한 무선인터넷 발달과 함께 이용자의 위치를 파악하여 정보를 제공하는 위치기반서비스에 대한 소비자 증가로 많은 3차원 도시모델이 개발되고 있다. 특히 우리나라 도심지역의 경우에는 초고층 건물들의 밀집으로 실외뿐만 아니라 실내공간 모델링에 대한 연구가 필요하며, 공간 모델을 통해서 최단경로 등의 공간 분석이 통한 위치기반서비스가 제공될 수 있어야 한다. 지금까지 많은 연구가 진행된 3차원 도시모델들은 피처 모델로, 기본요소들(primitives)을 조합하여 공간을 표현하고, 관계성은 공유하는 기본요소들을 찾아야지만 표현할 수 있기 때문에 복잡한 3차원 공간 객체들 사이에서는 관계성을 정의하기 힘들다. 따라서 최단경로와 같이 공간간의 관계성을 기반으로 도출되는 공간 분석을 하기 위해서는 공간간의 관계성 표현이 필요하다. 본 연구에서는 복잡한 3차원 실내공간간의 관계성을 효율적으로 표현하는 네트워크 기반의 위상학적 데이터 모델인 보행 공간 관계 모델을 개발하였다. Three-dimensional modeling of cities in the real-world is an essential task for city planning and decision-making. And many three-dimensional city models are being developed with the development of wireless Internet and location-based services that identify the location of users and provide the information increases for consumers. Especially, in case of urban areas of Korea, indoor space modeling as well as outdoor is needed due to the high-rise buildings densities. Also location-based services should be provided through spatial analysis such as the shortest path based on a space model. Many studies of three-dimensional city models are feature models. In a feature model, space is represented by combining primitives, and relationships among spaces are represented only if shared primitives are detected. So relationships between complex three-dimensional objects in space is difficult to be defined through the feature models. In this study, Navigable space-relation model(NSRM) is developed, which is topological data model for efficient representation of spatial relationships between objects based on the network structure.

이항 반응 자료에 대한 학습곡선의 모형화

이슬지,박만식,Lee, Seul-Ji,Park, Man-Sik 한국통계학회 2012 Communications for statistical applications and me Vol.19 No.3

연구자가 같은 작업을 반복적으로 수행할 때, 작업 효율성은 연구에 관련된 지식, 경험, 기술이 축적되면서 향상된다. 결과를 얻기 위해 연구에 투자하는 시간은 같은 작업을 반복함으로써 줄일 수 있다. 이러한 현상을 학습곡선 효과(learning curve effect)라고 일컫는다. 학습곡선(learning curves)은 학습의 변화를 시각적으로 나타낸 것으로 이전의 학습곡선 연구에서는 시간을 일정한 구간으로 나누어 구간별 작업에 대한 숙련도의 평균 차이 여부를 확인하였다. 이러한 방법은 구간을 어떻게 나눌 것인가 하는 기준이 존재하지 않으며, 더욱이 이항 반응 자료로 모형을 적합하기 어려운 문제점을 가지고 있다. 본 연구에서는 이산형 확률변수 중 이항 반응 자료(베르누이자료)에 대한 학습곡선의 통계적 모형에 초점을 맞추고자 한다. 누적확률분포의 특성을 이용하여 모수를 추정하기 위해서 뉴튼-랩슨 방법(Newton-Raphson method)을 사용하였고, 이 연구에서 제안한 모형의 점근적 분포를 구하였다. As a worker performs a certain operation repeatedly, he tends to become familiar with the job and complete it in a very short time. That means that the efficiency is improved due to his accumulated knowledge, experience and skill in regards to the operation. Investing time in an output is reduced by repeating any operation. This phenomenon is referred to as the learning curve effect. A learning curve is a graphical representation of the changing rate of learning. According to previous literature, learning curve effects are determined by subjective pre-assigned factors. In this study, we propose a new statistical model to clarify the learning curve effect by means of a basic cumulative distribution function. This work mainly focuses on the statistical modeling of binary data. We employ the Newton-Raphson method for the estimation and Delta method for the construction of confidence intervals. We also perform a real data analysis.

Development and validation of a HPLC method for the simultaneous determination of chlorquinaldol and promestriene in complex prescription

이슬지(Seul Ji Lee),신상연(Sang-yeon Shin),신혜진(Hae-jin Shin),이진균(Jin Gyun Lee),김동환(Dong-Hwan Kim),이수정(Sujung Lee),한상범(Sang Beom Han),박정일(Jeong Hill Park),이정미(Jeongmi Lee),권성원(Sung Won Kwon) 한국분석과학회 2012 분석과학 Vol.25 No.2

활성탄-망간 산화물 합성소재의 제조방법에 따른 중금속 흡착특성 비교

이슬지(Seul Ji Lee),이명은(Myoung Eun Lee),정재우(Jae Woo Chung) 大韓環境工學會 2014 대한환경공학회지 Vol.36 No.1

망간산화물이 코팅된 활성탄(MOAC)에 의한 Pb와 Cu 흡착의 동역학적 특성과 등온흡착 특성을 규명하기 위해 회분식 실험을 수행하였다. MOAC는 화학적 침전법(CP), 수열법(HT)과 초임계법(SC)으로 제조하였으며 제조방법별 중금속 흡착특성을 비교하였다. 실험된 흡착소재에 의한 Pb와 Cu의 흡착은 2차 반응속도 모델과 Langmuir 모델에 의해 적절하게 설명될 수 있는 것으로 나타나 흡착소재의 단분자층에서 이루어지는 균일한 흡착임을 알 수 있었다. Pb와 Cu 흡착용량은 활성탄(AC)에 망간산화물을 코팅시킴으로써 크게 증가하는 것으로 나타났으며 MOAC의 제조방법에 의해 영향을 받는 것으로 나타났다. CP, HT, SC의 순으로 활성탄 표면에 코팅된 망간산화물의 양과 균일성이 증가하며 그로 인해 흡착용량이 증가하는 것으로 나타났다. 본 연구의 결과는 MOAC가 중금속으로 오염된 환경을 정화시키기 위해 적절하게 활용될 수 있음을 보여준다. The adsorption characteristics of Pb(II) and Cu(II) by the manganese oxide-coated activated carbon (MOAC) were investigated by series of batch experiments. MOAC was prepared by three types of manufacturing methods such as chemical precipitation method (CP), hydrothermal method (HT) and supercritical method (SC). Pseudo-second-order and Langmuir models adequately described kinetics and isotherm of Pb(II) and Cu(II) adsorption on the experimented adsorbents. These results indicated that heavy metal ions were chemically adsorbed onto uniform monolayered adsorption sites. The coating of manganese oxide enhanced the adsorption capacities of AC. And adsorption capacities of Pb(II) and Cu(II) were significantly affected by the manufacturing method of MOAC. The highest adsorption performance was obtained by using SC, followed by HT and CP, which is caused from high uniformity and amount of manganese oxide coated onto AC induced by high temperature and pressure. These results show that MOAC can be used as an effective adsorbent to remediate heavy metal contaminated environment.

요추 추간판 탈출을 동반한 척추 전방 전위증 환자 39례에 대한 임상고찰

남지환,이준석,이슬지,김기원,이민정,전재윤,임수진,송주현,문자영,염승철,이성철,홍남중,Nam, Ji-Hwan,Lee, Joon-Seok,Lee, Seul-Ji,Kim, Kie-Won,Lee, Min-Jung,Jun, Jae-Yun,Lim, Su-Jin,Song, Ju-Hyun,Moon, Ja-Young,Yeom, Seung-Chul,Lee, Sung-Chu 척추신경추나의학회 2012 척추신경추나의학회지 Vol.7 No.2

Objectives : The purpose of this study was to evaluate the effect of Oriental medical treatment in patients with Spondylolisthesis and lumbar Herniated Intervertebral Disc(HIVD). Methods : This clinical study was carried out on 39 patients with Spondylolisthesis and lumbar Herniated Intervertebral Disc(HIVD), who had been admitted from Jan. 2012 to Nov. 2012. All of 39 patients were treated with acupuncture, Chuna treatment and herbal medicine during the whole admission period. Verbal numerical rating scale(VNRS) and Oswestry disability index(ODI) were used to evaluated the effectiveness of the Oriental medical treatment. Results : 1. Significant improvement of the symptoms of low back pain and leg pain on 39 patients with Spondylolisthesis and lumbar Herniated Intervertebral Disc(HIVD) was seen when evaluated with VNRS and ODI. 2. There was no significant difference of improvement by herniated type when evaluated with VNRS and ODI.. 3. There was no significant difference of improvement by spondylolisthesis type(degenerative and spondylolytic) when evaluated with VNRS and ODI. Conclusions : These results suggest that in the case of low back pain and lower limb numbness caused by Spondylolisthesis and HIVD, conservative treatments can be considered as one of the options of treating the symptoms beside surgical way.

요추 전만 각도와 요추 추간판 탈출증의 상관성 분석

전재윤,이준석,이슬지,남지환,이민정,김기원,임수진,송주현,문자영,염승철,이성철,Jun, Jae-Yun,Lee, Joon-Seok,Lee, Seul-Ji,Nam, Ji-Hwan,Lee, Min-Jung,Kim, Kie-Won,Lim, Su-Jin,Song, Ju-Hyun,Moon, Ja-Young,Yeom, Seung-Chul,Lee, Sung-Chul 척추신경추나의학회 2012 척추신경추나의학회지 Vol.7 No.2

Objectives : The perpose of this study was to observe the correlation between lumbar lordotic angle and radiological result. Methods : We randomly selected among the 150 patients with lumbar X-ray and MRI films who have visited Jaseng Hospital of Oriental Medicine with low back pain. Radiographic lumbar lordotic angle and lumbar HIVD were collected and stastically analyzed. Results : In this study, if the finding of a X-ray showed straightening of lumbar lordotic curve, based on MRI finding, the number of HIVD increased. Conclusions : There was a significant correlation between lumbar hypolordosis and HIVD, hypolordosis complained mare HIDVs.

척추전방전위증을 동반한 요추간판 탈출증 환자 32례에 대한 한의학적 임상고찰

이한(Han Lee),정호석(Ho-suk Jung),김상주(Sang Joo Kim),김은석(Eun Seok Kim),한경완(Kyung Wan Han),우재혁(Jae Hyuk Woo),이준석(Joon Seok Lee),이슬지(Seul Ji Lee),이선구(Seon Goo Lee),차윤엽(Yun Yeop Cha) 한의병리학회 2010 동의생리병리학회지 Vol.24 No.6

성동구내 어린이집 원아 부모의 소아 한방치료에 대한 인식 및 이용에 관한 조사 연구

박유진,이슬지,윤지연,명성민,Park, You-Jin,Lee, Seul-Ji,Yoon, Ji-Yeon,Myoung, Sung-Min 대한한방소아과학회 2011 대한한방소아과학회지 Vol.25 No.1

Objectives: The purpose of this study is to examine the parental recognition and utilizing patterns of oriental medical care in children who live in Seong-Dong district. Methods 802 day-care center children's parents participated in the survey on recognition and utilizing patterns of oriental medical care, and 702 of the surveys were analyzed. Results: 1. 38.33% has received previous oriental medical treatments and most were received at the children's age under 12-24 months. Majority of the treatments took place in the clinical settings. By recommendation, some also received their treatment at the medical centers. One of the reasons why they receive oriental medical treatments was that they prefer to balance their treatment with the orental medical treatments along with the western's. 2. 53.85% of those who received oriental medical treatments were satisfied with their treatments. The effective treatment results were the major reason for the satisfaction. 3. 49.56% of those who had oriental medical treatments chose specific oriental medical facilities for the children's ailment. Most specific oriental medical facilities were local oriental medical clinics. Reputation fame were the main reason in choosing the clinics. 4. In 2009, 55.26% had received care in the specific oriental medical clinics for the diseases, such as respiratory symptoms, systemic symptoms, gastrointestinal symptoms, skin problems, neurological and psychiatric disease for infants, and respiratory symptoms, gastrointestinal symptoms, systemic symptoms, skin problems, neurological and psychiatric symptoms, urinary symptoms and musculoskeletal symptoms for toddlers. 5. The average duration of herbal treatment were 7-14 days, preferably 4-6 days, and preferred number of medical visits were once a week on Saturdays and preferred day for night cares were on Friday nights. Average treatment fee per treatment was less than 10,000 won which coincided with the preferred treatment fee per visit. 6. The very first medical institutions chosen by parents once their children are ill are the following; Western medical institutions, western medical clinics, pharmacies, oriental medical clinics, health centers, and lastly, oriental medical institutions. The major concerns in receiving oriental medical cares include pesticides in herbs and hazardous substances in heavy metals. Preferred form of oriental medicine was decoction, the negative feedback of oriental medicine was mostly due to the bitter taste of the oriental herbal decoctions. Preferred frequency of intake was twice a day with less than 10cc~20cc per single intake. Conclusions: Taken all together, we conclude that the growing recognition of Oriental Pediatric medicine is needed among parents.

경항통 환자에 있어서 경추의 전만 감소와 영상의학검사 소견상의 연관성 분석

이준석,이슬지,김은석,한경완,우재혁,김상주,이한,김창연,Lee, Joon-Seok,Lee, Seul-Ji,Kim, Eun-Seok,Han, Kyung-Wan,Woo, Jae-Hyuk,Kim, Sang-Joo,Lee, Han,Kim, Chang-Youn 척추신경추나의학회 2010 척추신경추나의학회지 Vol.5 No.2

Objectives : The propose of this study was to observe the correlation between Cervical hypolordosis and radiological result. Methods : We randomly selected among the 110 patients with X-ray and C-spine MRI films who have visited Jaseng Hospital of Oriental Medicine with neck pain. Radiographic measures of cervical lordosis and herniated disc were collected, and statistically analyzed. Results : In this study, if the finding of a X-ray showed straightening of cervical lordotic curve, based on MRI finging, the amount of herniation was more severe. Conclusions : There was a significant correlation between Cervical hypolordosis and herniated disc. Hypolordosis group complained a severe herniated disc.

분양아파트의 관리서비스 요구도 분석을 통한 관리주체의 역할 모색

강순주(Kang, Soon-Joo),이슬지(Lee, Seul-Ji) 한국주거학회 2017 한국주거학회 학술대회논문집 Vol.29 No.1

The purpose of the study was to seek of the role of management authority through the analysis of condominium management service needs. The research was surveyed condominium residents between March in 2017 and the total of 248 questionaries was analyzed using SPSS statistical software. Results of the research can be summarized as follows, 1) The management services are classified into three types : 「Community activation service」, 「General management service」, 「Specialized management service」. 2) The type of management service is demanded in order of 「General management service」, 「Community activation service」 and 「Specialized management service」. 3) Most condominium residents submit to the cost of additional management services, whereas the opinions are divided according to the burden method that is associated with the service item. 4) In the case of the management work satisfaction, the maintenance management is high, the satisfaction of the life management and operation management is relatively insufficient. The higher the degree of the management work satisfaction, the more awareness and interest in management work. The higher the awareness of management work, the more the interest and participation in management.