연속적 결측이 존재하는 기온 자료에 대한 결측복원 기법의 비교

김희경,강인경,이재원,이영섭,Kim, Hee-Kyung,Kang, In-Kyeong,Lee, Jae-Won,Lee, Yung-Seop 한국통계학회 2016 응용통계연구 Vol.29 No.3

장기간의 기후 자료가 누적되다 보면 자료의 수집과정에서 시스템적 오류나 측정 장비의 고장 등으로 인하여 연속적 결측이 종종 발생하게 된다. 연속적인 결측 형태를 갖는 경우 시계열 결측 자료를 대체하는 것에 어려움이 따른다. 이러한 경우 참조시계열을 이용하여 결측값을 대체할 수 있다. 참조시계열은 결측이 발생한 시계열과 관련성이 높은 주변지점의 시계열로 구성할 수 있다. 본 연구에서는 결측값을 대체시킬 수 있는 3가지 결측복원 기법-수정된 정규화비율 방법, 회귀 방법, IDW 방법-을 비교하는 시뮬레이션을 수행하였다. 우리나라 14개 지점의 기후관측소의 일평균기온값을 대상으로 비교한 결과 남쪽 해안가에 위치한 기후관측소의 자료에 대해서는 IDW 방법이 가장 정확한 것으로 나타났으며, 그 외 지역의 기후관측소 자료에 대해서는 회귀 방법이 가장 정확한 것으로 나타났다. Consecutive missing values are likely to occur in long climate data due to system error or defective equipment. Furthermore, it is difficult to impute missing values. However, these complicated problems can be overcame by imputing missing values with reference time series. Reference time series must be composed of similar time series to time series that include missing values. We performed a simulation to compare three missing imputation methods (the adjusted normal ratio method, the regression method and the IDW method) to complete the missing values of time series. A comparison of the three missing imputation methods for the daily mean temperatures at 14 climatological stations indicated that the IDW method was better thanx others at south seaside stations. We also found the regression method was better than others at most stations (except south seaside stations).

Implant-supported prosthetic rehabilitation for the edentulous maxilla using the additive manufacturing technology: A case report

김희경,Kim, Hee-Kyung The Korean Academy of Prosthodonitics 2018 대한치과보철학회지 Vol.56 No.2

The direct metal laser sintering (DMLS) technique would be promising for the full-arch implant-supported restorations due to reduced cost and manufacturing time without potential human errors and casting defects. The aims of this case report were to describe the successful outcome of an implant-supported fixed dental prosthesis in the edentulous maxilla by using the DMLS technology and computer-aided design and computer-aided manufacturing (CAD/CAM) monolithic zirconia crowns, and to describe its clinical implications. A healthy 51-year-old Korean woman visited Seoul National University Dental Hospital and she was in need of a rehabilitation of her entire maxilla due to severe tooth mobility. In this case, all maxillary teeth were extracted and an implant-supported fixed dental prosthesis was fabricated that involved a cobalt-chromium (Co-Cr) framework with the DMLS technique and CAD/CAM monolithic zirconia crowns. Six months after delivery, no distinct mechanical and biological complications were detected and the prosthesis exhibited satisfactory esthetics and function. In this case report, with the DMLS system, the three-dimensional printed prosthesis was created without additional manual tooling and thus, reliable accuracy and passive fit were obtained. 직접식 금속 레이저 소결 방식 시스템은 기공 오차 및 주조 결함 없이 제작 비용 및 제조 시간 단축을 장점으로 전악 임플란트 지지 고정성 보철물 제작에 유용하다. 본 증례에서는 직접식 금속 레이저 소결 방식과 치과용 캐드캠으로 제작된 단일구조 지르코니아 크라운을 사용하여 무치악 상악에서 임플란트 지지 고정성 치과 보철물의 성공적인 결과를 보고하고 임상적 의의를 평가하였다. 51세의 건강한 중년 여성이 상악 전 치아의 동요도를 주소로 서울대학교 치과병원에 내원하였다. 모든 상악 치아 발치 후 직접식 금속 레이저 소결 기술 및 캐드캠 단일구조 지르코니아 크라운을 사용하여 코발트-크롬 프레임을 포함하는 임플란트 지지 고정성 치과 보철물을 제작하였다. 최종 수복물 장착 6개월 후, 기계적 및 생물학적 합병증은 발견되지 않았고 보철물은 기능 및 심미적으로 만족스러운 결과를 보였다. 직접식 금속 레이저 소결 시스템을 이용하여 추가적인 기공 작업 없이 임플란트 지지 고정성 보철물을 제작하여 제조 시간을 단축하고 신뢰할 수 있는 정확도와 적합성을 얻었다.

8체질침으로 치료한 금음체질(金陰體質, Colonotonia) 알레르기비염환자 3례

김희경,홍승욱,Kim, Hee-Kyung,Hong, Seung-Ug 대한한방안이비인후피부과학회 2009 한방안이비인후피부과학회지 Vol.22 No.2

Objective : This study is to investigate the effect of 8 Constitution Acupuncture on allergic rhinitis patients Methods : We treated 3 allergic rhinitis patients diagnosed as Colonotonia with 8 Constitution Acupuncture by dry needle. The degree of improvement was evaluated by Visual Analogue Scale(VAS) Results & Conclusions : After taking 8 Constitution Acupuncture sessions, the symptoms of allergic rhinitis was improved. After 8 Constitution Diet, the effect of therapy was lingered. This study shows that the allergic rhinitis can possibly be treated not only with herb medicine, but also with acupuncture and diet.

한 대학병원 부속 건강검진센터 이용자의 만족도와 재이용 의사에 미치는 요인

김희경,류황건,Kim, Hee-Kyoung,Ryu, Hwang-Gun 한국병원경영학회 2001 병원경영학회지 Vol.25 No.3

The purpose of this study was to serve as a basis for providing quality medical service and mapping out consumer-centered marketing strategies to successfully cope with the rapidly changing medical environment and meet consumer needs, by examining what affected the satisfaction and revisit of health Promotion center Client. The subjects in this study were 186 of visitor to health Promotion center in a university hospital in the city of Busan. A survey was conducted with structured questionnaire from March 2 to 30, 2001. The collected data were analyzed with SPSS for Windows (ver10.0). For more statistical analysis, frequency analysis, component analysis, t-test, ANOVA and correlation analysis procedures were utilized. Results of the study can be summarized as follows: 1. Regarding demographic characteristics, 51.6% of the Client investigated were male, and 48.4% were female. The greatest number of them were in their 40s(38.9%). 86.5% were married, and 34.2% were self-employed. 44% were a high-school graduate, and the monthly mean income of 59.4% was one to three million Won. And, the residential area of 46.8%, the largest percentage, was a half-an-hour distance from health Promotion center. 2. The most common motivation of their selection of the health Promotion center was a recommendation by Staff and neighborhood(59.7%), followed by excellent facilities and services(17.2%), the tradition and reputation of the hospital(7.5%), and its publicity pamphlets(7.5%). 3. 45.9%, the largest percentage, acquired health-related information from their friends or acquaintances. 43.8%, the greatest percentage, visited there because they felt there's something wrong with their body. 53.4% worried about the possibility of being attacked by cancer, and 57.5% wanted to take a precise cancer examination. For health maintenance, 50.1% got regular exercise. Regular exercise was considered most crucial for health maintenance or promotion. 4. The largest reason they used that examination center again was the kindness of employees(52.7%), followed by the tradition and reputation of the hospital(21%) and excellent examination setting and equipment(10.8%). 5. By demographic factor, there was no significant difference between the man and women in satisfaction level with examination and expenses. The women expressed more satisfaction at facilities, and the high-school graduate group were more contented with expenses. 6. As a result of investigating their satisfaction level according to the motivation of selecting that examination center, the group that chose the center due to excellent facilities and services were more satisfied with examination and expenses. 7. As for the relationship of total examination satisfaction to revisit. intention, there was a higher correlational relationship between total health examination satisfaction and expense satisfaction. Especially, the more they were satisfied with examination, the more they were willing to revisit there for another examination.

일부 지역아동센터 구강건강증진 프로그램 운영 횟수에 따른 효과 비교 연구

김희경,배수명,신선정,류다영,손정희,엄미란,신보미,이민선,김은주,최용금,Kim, Hee-Kyoung,Bae, Soo-Myoung,Shin, Sun-Jung,Ryu, Da-Young,Son, Jung-Hue,Eom, Mi-Ran,Shin, Bo-Mi,Lee, Min-Sun,Kim, Eun-Ju,Choi, Yong-Keum 한국치위생학회 2011 한국치위생학회지 Vol.10 No.2

Objectives : The aim of study is the comparison of effect in oral health education frequency and contents for elementary school students from a part of community child center to run and suggest a practical and effective oral health promotion program for local community child center. Methods : The program has been running for 4 trials in G district in Seoul and 2 trials has been conducted in S city in Gyung gi province. The comparison was done in independent samples test of awareness, knowledge and behavior of children of community child center in both G district and S City and paired t-test was conducted before and after oral health promotion program to find out those same 3 items. Results : As a result, after the comparison of plaque control score of Oral health promotion program frequency, significantly better result was show in 4 trial program with 55.3 score(p<0.05), No significant result of plaque control score was shown in 2 trail program(p>0.05). Conclusions : As a result of the Oral Health Promotion program which has been conducted in 2 different session type, knowledge, awareness and behaviour has been changed, however, There were no significant difference between Oral health education frequency of those two different program. Also with the result of Plaque control score of those two programs were not satisfying level. Therefore, in conclusion, the management and operation of the Oral Health Promotion program is needed and it must be based on health promotion which it would change the behavior and attitude of the children.

중등 과학교사의 감정표현규칙과 감정노동 유형

김희경,Kim, Heekyong 한국과학교육학회 2017 한국과학교육학회지 Vol.37 No.4

본 연구에서는 중등 과학교사의 감정노동의 실태를 파악하고자 감정표현규칙, 감정노동 유형, 감정노동 사례, 과학 특정 감정표현규칙에 대해서 탐색하고자 하였다. 이를 위해 중등 과학교사를 대상으로 '과학교사 감정노동 설문지(TELSTS)'를 개발하여 145명의 설문응답 결과를 분석하였다. 분석 결과는 다음과 같다. 첫째, 중등 과학교사들은 학교현장에서 과학교사로서 요구되거나 기대되는 감정표현규칙이 있다는 것에 동의하였으며, 특히 긍정적 감정표현규칙을 더 잘 인식하고 있었다. 둘째, 중등과학교사들은 자신들이 인식한 감정표현규칙을 지키기 위해 감정노동을 수행하고 있는 것으로 나타났으며 특히 내면행위에 대한 응답 평균값이 높았다. 집단별 차이를 보면 정교사 여부와 교직경력에 따라서 감정노동에 유의미한 차이를 보였다. 셋째, 과학교사의 특수성을 분석한 결과, 주로 실험지도와 과학의 객관적, 논리적 이미지와 관련되었으며, 74%의 응답이 부정적이거나 중립적인 감정표현규칙에 해당하였다. 마지막으로 본 연구결과가 과학교육에 주는 시사점을 논의하였다. The purpose of the study is to explore secondary science teachers' emotional display rules, types of emotional labor, science-specific emotional display rules and the episodes of emotional labor. For this purpose, the survey to measure emotional labor of science teachers (The Emotional Labor of Science Teaching Scale: TELSTS) was developed and the participants were 145 secondary science teachers in Korea. Results showed that first, secondary science teachers recognized the emotional display rules defined by their schools, especially, positive display rules. Second, secondary science teachers showed that they were carrying out emotional labor in order to keep their emotional display rules in check. The mean value of responses to deep acting was high. Also, there were statistically significant differences in emotional labor depending on whether they were full-time or part-time teachers and their teaching career. Third, as a result of analyzing the specificity of science teachers, it was mainly related to the objective and logical image of science, and experimental instruction. Seventy-four percent (74%) of responses were negative or neutral emotional display rules. Finally, implications for science education are discussed.

유방의 고형성 유두상 암종의 세침흡인 세포학적 소견 - 점액성 암종을 동반한 1예 보고 -

김희경,김동원,진소영,이동화,Kim, Hee-Kyung,Kim, Dong-Won,Jin, So-Young,Lee, Dong-Wha 대한세포병리학회 2001 대한세포병리학회지 Vol.12 No.2

Solid papillary carcinoma of the breast is a distinctive form of intraductal papillary carcinoma frequently associated with both mucinous carcinoma and infiltrating ductal carcinoma, not otherwise specific. To our knowledge, this case is the first description of the cytologic aspects of solid papillary carcinoma of the breast in the Korean literature. We experienced a case of solid papillary carcinoma of the right breast diagnosed by fine needle aspiration cytology(FNAC) in a 70-year-old female. FNAC from the right breast showed high cellularity consisting of mostly tight clusters of tumor cells and a few scattered tumor cells. The nuclei were monotonously round to oval in shape with inconspicuous nucleoli. The cytoplasm was abundant and finely granular. Scant amount of mucinous material was present on the background. The diagnosis was confirmed histologically and immunohistochemically.

미국에서의 교통데이터표준의 연구 사례

김희경,오석기,Kim, Hui-Gyeong,O, Seok-Gi 대한교통학회 2006 교통 기술과 정책 Vol.3 No.1

신경절신경종의 세침흡인 세포학적 소견 - 1예 보고 -

김희경,진소영,이동화,Kim, Hee-Kyung,Jin, So-Young,Lee, Dong-Wha 대한세포병리학회 2003 대한세포병리학회지 Vol.14 No.1

Ganglioneuroma is a well-differentiated, benign tumor of the sympathetic nervous system. These tumors belong to a family of neoplasm that exhibit a wide range of differentiation, with neuroblastoma at one end and ganglioneuroma at the other. Because it share morphologic features with other both benign and malignant neural tumors, accurate preoperative diagnosis is often difficult. Nonetheless, it is critical for proper management. Fine needle aspiration cytology (FNAC) in the diagnosis of the ganglioneuroma has been a little documented. We describe a case of mediastinal ganglioneuroma in a 33-month-old girl. The diagnosis was suggested on FNAC and was confirmed by histopathologic examination later.

상관적분 기법의 프랙탈 차원 추정을 통한 기후관측소 밀도 분석에 관한 연구

김희경,이영섭,Kim, Hee-Kyung,Lee, Yung-Seop 한국데이터정보과학회 2013 한국데이터정보과학회지 Vol.24 No.1

현재 세계기상기구에 등록되어 있는 우리나라 기후관측소는 11개 지점이다. 11개 지점의 분포를 보면 지리적으로 균일하지 못하고 대부분이 해안에 위치하는 편중된 분포를 보이고 있다. 따라서 기후관측소 자료를 바탕으로 하는 전국 기후자료 생산 및 특성 산출을 위해서는 관측소 밀도에 관한 분석을 통해 기후자료 분포에 대한 균형도의 측정이 필요하다. 본 연구에서는 상관적분 기법을 이용한 프랙탈 차원의 추정을 통해 우리나라 기후관측소 밀도를 측정하였다. 상관적분 기법 적용시 회귀분석을 통하여 추정된 회귀계수로 프랙탈 차원을 추정한다. 추정된 프랙탈 차원을 이용해 전국의 기상관서들 중 지리적으로 기후관측소 구성의 균형도를 가장 높여 줄 수 있는 기후관측소 후보지점을 선정하였다. 이 때 후보지점을 순차적으로 선택하는 방식과 조합의 형태로 여러 후보지점을 한 번에 선택하는 방식으로 각각 최적의 후보지점들을 선택하였다. Currently we have 11 climatological stations registered in World Meteorological Organization. Geographically, these stations are unevenly distributed in Korea and are mainly located on seaside. Therefore station's density analysis should be performed to produce the high-quality climatological data. Using the correlation integral method, the density of climatological stations can be measured by the estimation of fractal dimension. In this study, new climatological stations having the higher fractal dimension were selected. Sequential or simultaneous selection method were carried out until 3 new stations were selected based on the fractal dimension.