氣象條件, 不快指數, 曜日 및 週別에 根據한 백아산 自然休養林의 訪問者數의 豫測

車璟洙 全南大學校 農業科學技術硏究所 1997 農業科學技術硏究 Vol.32 No.-

自然休養林을 效率的으로 管理·運營하기 위한 基礎情報를 提供하기위한 첫 段階로서, 백아산 자연휴양림의 8月 訪問者 數를 氣象條件, 不快指數, 曜日 및 週別의 變化에 根據하여 豫測했다. 그 결과 자연휴양림의 방문객수에 미치는 影響은 요일이 가장 크게 작용한 반면에, 기상조건은 큰 영향을 미치지 못한 것으로 나타났다. 요일에 있어서는 金, 土, 日曜日인 주말이, 週別에 있어서는 첫째와 셋째주가, 기상조건에 있어서는 맑음이, 불쾌지수에 있어서는 낮음이 자연휴양림의 방문객수를 增大시키는 要因으로 作用했다. 또한, 기상조건, 불쾌지수 및 週別에 근거한 曜日別 방문자수의 추정은 어느 정도 가능할 것으로 사료된다. As the first step to offer the basic information for the effective management of recreation forest, the number of visitors in August at Paeka-san recreation forest was estimated by "Quantification theory type I" based on the factors such as weather conditions, discomfort indices and times (days and weeks). The factors were divided into fine, cloud and rain in weather conditions, high and low in discomfort indices, Sunday, monday, Tuesday, Wednesday, Thursday, Friday and Saturday in days, and 1st, 2nd, 3rd, 4th and 5th in weeks. As the result of comparison of the number of visitors with the factors, the impacts of times on the number of visitors were higher than those of the weather conditions and discomfort indices on them. The main factors of the number of visitors were as followd; Friday, Saturday and Sunday in days, 1st and 3rd in weeks, fine in weather conditions, and low in discomfort indices.

기후변화하에서 잠재삼림면적의 변화 예측

차경수 ( Gyung Soo Cha ) 한국산림과학회 1998 한국산림과학회지 Vol.87 No.3

To offer the basic information for sustainable production of forest resources and conservation of the global environment, change in potential natural vegetation (PNV) associated with climate change due to doubling atmospheric carbon dioxide (2×CO₂) was estimated with the global natural vegetation mapping system based an Koppen scheme. The system interpolates climate data spherically to each grid cell, determines the vegetation types onto the grid cell, and produces potential vegetation map and area on the globe and continents. The climate data consist of the current, (1×CO₂) climate prior to AD 1958 observed at some 2,000 stations and the doubling (2×CO₂) climate estimated from Meteorological Research Institute of Japan. The vegetation cone under the 2×CO₂ climate scenario expanded mainly toward the poles due to the rise in temperature. The changed PNV area on the globe amounts to 1/3 (4.91 billion (G) ha) of the total land area (15.04 Gha). Kappa statistic for judging agreement between the patterns of vegetation distribution under 1×CO₂ climate and 2×CO₂ climates shows good agreement (0.63) for the globe as a whole. The most stable areas are desert and ice. The potential forest area (PFA) was estimated at 6.82 Gha of the land area in 2 × CO₂ climate scenario. In terms of continental changes in PFA, North America and Asis are increased under the 2×CO₂ climate. However, the potential forest arms of the other continents are decreased by the climate. Europe has no change in the PFA. Especially, the expansion of desert area in Oceania would be accelerated by the 2×CO₂ climate.

지구의 잠재자연식생분포를 추정하기 위한 최적구면보간법의 개발

차경수(Gyung Soo Cha),락합공야(Kamiya Ochiai) 한국산림과학회 1997 한국산림과학회지 Vol.86 No.1

As the first step to estimate the potential natural vegetation distribution of the globe, the best spherical interpolation method was developed to the temperature and precipitation which have close relation to the distribution pattern of world natural vegetation. For developing the interpolation method, a named Light Climatic Dataset composed of 1,060 stations around the globe was randomly divided into halves of feeding side and target side. The discrepancy between the observed and estimated values at the target stations was compared with combinations of parameters and methods. The estimated values were calculated to each combination which is all-out, constant radius and constant station methods in the selection of the feeding stations, n square reciprocal and negative exponential functions in weighting function of distance between feeding stations and each target, and oval weighting in direction of the feeding stations from each target. As a result, it turned out that the spherical interpolation with negative exponential weighting function fed from the constant radius stations ovally weighed yields the best estimates both for temperature and for precipitation. The parameters for temperature are 30°in constant radius, 0.78 in negative exponential function and 0.4 in oval weighting, and for precipitation are 30°, 0.53 and 0.4, respectively.

지구상의 잠재삼림면적을 추정하기 위한 적정 식생도제작 시스템의 선발

차경수 한국임학회 1997 한국산림과학회지 Vol.86 No.1

The optimum global natural vegetation mapping(GNVM) system was selected as a series of the study to estimate potential forest area of the globe. To select the system, three types of GNVM systems which are simple system with Light Climatic Dataset(LCD), altitude-allowed system with LCD and altitude-allowed system with Heavy Climatic Dataset(HCD) were established and compared. The three GNVM systems spherically interpolate such spotty climate data as those observed at weather stations the world over onto 1°× 1°grid points, product vegetation type classification, and produce a potential natural vegetation(PNV) map and a PNV area. As a result of comparison with three GNVM systems, altitude-allowed LCD system represented natural vegetation distribution better than other versions. The difference between the simple system versus the one with altitude allowance indicated that the simple version tends to over-represent the warmer climate areas and under-represent cold and hostile climate areas. In the difference between altitude-allowed versions of LCD and HCD, HCD version tended to overestimate moist climate areas and to underestimate dry climate areas.

Butt 용접판재에서의 피로균열 성장거동에 미치는 잔류응력의 영향에 관한 연구

차용훈,정종안,채경수,김하식 한국산업안전학회 1993 한국안전학회지 Vol.8 No.2

In this study, the purpose is to investigate the influence of initial residual stresses on the fatigue crack growth behaviors after the distribution of initial residual stresses is measured when the crack is growing from the compressive residual stresses field to the tensile residual stress field. Also, the influence of the variation of residual stress distribution on the fatigue crack growth behaviors at the crack tip is studied when the initial crack is applied on base metal, weld metal and HAZ respectively.

Nationwide Surveillance Study of Vancomycin-Intermediate Staphylococcus aureus Strains in Korean Hospitals from 2001 to 2006

( Gyung Tae Chung ),( Jeon Gok Cha ),( Sun Young Han ),( Hee Sun Jang ),( Kyeong Min Lee ),( Jae Il Yoo ),( Jeong Sik Yoo ),( Hong Bin Kim ),( Soo Hoon Eun ),( Bong Su Kim ),( Ok Park ),( Yeong Seon L 한국미생물 · 생명공학회 2010 Journal of microbiology and biotechnology Vol.20 No.3

Antihypertensive effect of Ganjang (traditional Korean soy sauce) on Sprague-Dawley Rats

Eun-Gyung Mun,Hee-Sook Sohn,Mi-Sun Kim,Youn-Soo Cha 한국영양학회 2017 Nutrition Research and Practice Vol.11 No.5

BACKGROUND/OBJECTIVES: Although Korean fermented foods contain large amounts of salt, which is known to exacerbate health problems, these foods still have beneficial effects such as anti-hypertension, anti-cancer, and anti-colitis properties. We hypothesized that ganjang may have different effects on blood pressure compared to same concentrations of salt. MATERIALS/METHODS: Sprague-Dawley rats were divided into control (CT), NaCl (NC), and ganjang (GJ) groups and orally administered with 8% NaCl concentration for 9 weeks. The systolic blood pressure (SBP), serum chemistry, Na<SUP>+</SUP> and K<SUP>+</SUP> concentrations and renal gene expressions were measured. RESULTS: The SBP was significantly increased in the NC group compared to the GJ and CT groups. In addition, the Na<SUP>+</SUP> concentration in urine was higher in the GJ and NC groups than the CT group, but the urine volume was increased in the GJ group compared to the other groups. The serum renin levels were decreased in the GJ group compared to the CT group, while the serum aldosterone level was decreased in the GJ group relative to the NC group. The mRNA expression of the renin, angiotensin II type I receptor, and mineralocorticoid receptor were significantly lower in the GJ group compared to other groups. Furthermore, GJ group showed the lowest levels of genes for Na+ transporter in kidney cortex such as Na<SUP>+</SUP>/K<SUP>+</SUP> ATPaseα1 (NKAα1), Na<SUP>+</SUP>/H<SUP>+</SUP> exchanger 3 (NHE3), Na+/HCO₃- co-exchanger (NBC), and carbonic anhydrases II (CAII). CONCLUSIONS: The decreased SBP in the GJ could be due to decreased renin and aldosterone levels in serum and increased urinary volume and excretion of Na<SUP>+</SUP> with its transporter gene alteration. Therefore, ganjang may have antihypertensive effect despite its high contents of salt.

암 환자의 임상영양치료를 위한 임상영양사의 직무분석과 직무표준 개발

최수경 ( Soo Kyong Choi ),위경애 ( Gyung Ah Wie ),이송미 ( Song Mi Lee ),김은미 ( Eun Mi Kim ),박미선 ( Mi Sun Park ),손정민 ( Cheong Min Sohn ),우미혜 ( Mi Hye Woo ),주달래 ( Dal Lae Ju ),차진아 ( Jin A Cha ),서정숙 ( Jung Sook S 대한영양사협회 2015 대한영양사협회 학술지 Vol.21 No.2

The present study was conducted to provide the basis for improvement of clinical nutrition services through development of job standards of clinical dietitian for the clinical nutrition therapy to cancer patients in hospitals. Developing A Curriculum (DACUM) method was used for job analysis and development of job standards for clinical dietitians for cancer care. Based on DACUM analysis, information about duties, tasks, and task elements of clinical dietitians for cancer care was collected. Developed job standards were applied to clinical nutrition care for cancer patients in hospitals for evaluation. Based on DACUM analysis, consultations from professionals, and field application tests, the final job standards were composed of four duties, 18 tasks, and 56 task elements. The duties consisted of nutritional assessment, nutrition diagnosis, nutrition intervention, and nutrition monitoringㆍevaluation. For cancer nutrition care, 109 work activities were developed. They were composed of 75 basic and 34 recommended work activities. The application of developed job standards for clinical dietitians for cancer care at 10 hospitals showed a performance rate of 72.3%. In conclusion, job standards for clinical dietitians for cancer care developed in this study might be effectively used as guidelines for providing clinical nutrition services for cancer patients in hospitals.

우리나라 일부 청소년의 구강질환으로 인한 활동제한실태 및 구강보건행태와의 연관성

임차영 ( Cha Young Lim ),주현정 ( Hyun Jeong Ju ),이나경 ( Na Gyung Lee ),오효원 ( Hyo Won Oh ),이흥수 ( Heung Soo Lee ) 대한예방치과·구강보건학회 2013 大韓口腔保健學會誌 Vol.37 No.2

Objectives: The purpose of this study was to investigate the relationship between restricted activity due to oral diseases and oral health behaviors among adolescents. Methods: A cross-sectional study design was used. The subjects were 238 middle school students and 231 high school students; a total of 469 students from 15 different schools located in 7 regions of Bucheon in Gyeonggi Province, Daejeon, and others. The adolescents who participated in the survey were chosen by convenience sampling. The association between restricted activities due to oral diseases and oral health behaviors was analyzed using multiple logistic regression analysis. Results: The annual experience rate of oral diseases stood at 1.4 percent, while the number of days absent and early departures from school was 0.15 days per student. The rate of middle school students who were disturbed by oral disease with respect to sleep, eating, speaking, and/or schoolwork was 33.1 percent. In high school students, it was 40.6 percent. Dental pain and gingival bleeding were identified as major factors to the restriction of activities, and being disturbed while eating was related to cariogenic beverages. Conclusions: It would be of great social interest to support and promote oral health programs among adolescents. Therefore, a national survey of the status of activity restrictions due to oral diseases in adolescents should be implemented in order to make specific future plans.

논산시 일부 다문화가족 모자의 치과의료이용행태

임차영 ( Cha Young Lim ),이홍수 ( Heung Soo Lee ),이나경 ( Na Gyung Lee ),주현정 ( Hyun Jeong Ju ),이선호 ( Sun Ho Lee ),오효원 ( Hyo Won Oh ) 대한예방치과·구강보건학회 2014 大韓口腔保健學會誌 Vol.38 No.2

Objectives: The purpose of this study was to identify the status of dental care utilization among mothers and children from multicultural families and analyzing the related factors. Methods: The subjects in this study were 131 mothers from multicultural families and 175 mothers from Korean (control) families who were selected by convenience sampling from the city of Nonsan. The dental care utilization among mothers and children from multicultural families and mothers and children from Korean families were compared. A questionnaire survey was conducted using the self-administration method for mothers from Korean families and by a face-to-face interviewing method for mothers from multicultural families. Results: The proportion of subjects who visited the dentist`s office in the past year was not different between the two groups of mothers. However, this proportion was lower in children from multicultural families than those from Korean families. The factors that influenced the visit to dental clinics were age and spouse`s age among multicultural mothers and age, spouse`s age, personal perceptions about oral health, and oral health concerns among Korean mothers. The factors that influenced dental clinic visits were mother`s career, household income, education level of the mother, children`s age, mother`s dental clinic visits, mother`s perception of children`s oral health among multicultural children and father`s age, marriage duration of parents, children`s age, mother`s dental clinical visit, and the mother`s concerns about children`s oral health among Korean children. Conclusions: Multicultural children visit the dental clinic a lot less than Korean children. Social economic factors such as household income, education level affect the use of dental clinic services by multicultural families.