• 대한지역사회영양학회:학술대회논문집
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• 대한지역사회영양학회 2003년도 추계학술대회
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• pp.1048-1048
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• 2003

The purpose of this study was to investigate dietary behaviors, body image, hematological index and nutrient intake of female athletes in Incheon. The subjects were 112 female athletes (field and track: n=32, firing: n=27, fencing: n=29, swimming: n=14, badminton: n=10) from middle and high schools in Incheon. This cross-sectional study was conducted by a self-administered questionnaire. Fasting blood samples were obtained and analyzed for hemoglobin (Hb), hematocrit(Hct), ferritin, serum iron, mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC), unsaturated iron binding capacity (UBC), total iron binding capacity (TIBC) and transferrin saturation (TS). Nutrient intakes collected from 3 day-recalls were analyzed by the Computer Aided Nutritional Analysis Program. Statistical analysis was conducted using SPSS 10.0 program. The results are summarized as follows: Average age of field and track athletes, firing, fencer and swimmer was 14 years and that of badmintoner was 17 years. Most of female athletes had dietary problems such as unbalanced meals, skipping meals, and preference of processed foods. More than 60% of female athletes skipped breakfast. As for perception of body image, most of female athletes perceived themselves fatter compared to normal body image. Especially, field and track athletes were more significantly experienced weight control compared to the other athletes (p<0.05). As for physical burden during exercise, 56.3% of swimmer and 31.3% of field and track athletes answered “very hard”, which showed a significant difference (p<0.001) More than 80% of female athletes had experienced a vertigo during exercise (p<0.01). Also, more than 50% of female athletes except badmintoner had experienced an irregular menstruation (p<0.05). Average serum iron level (p<0.05) and TS (p<0.05) of field and track athletes were significantly lower compared to the other athletes. Serum ferritin of badmintoner, field and track athletes and fencer was significantly lower compared to firing and swimmer (p<0.05). Nutrient intakes of female athletes except vitamin B6, niacin and phosphorus were lower than the Korean RDA. Especially, calcium and iron intakes of female athletes were under the 50% of the Korean RDA. Therefore, proper nutrition education and supplementation are required for female athletes to encourage desirable food habits as well as to improve their nutritional status and exercise performance.

• 대한지역사회영양학회지
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• 제12권1호
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• pp.40-49
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• 2007

This study was done to investigate the health-related habits, dietary intakes and serum lipid levels in overweight and obese women by body mass index(BMI). Subjects were 137 pre-menopausal women aged 19 to 49 years. They were divided by 3 groups, overweight($23{\leqq}BMI<25$), obese($25{\leqq}BMI<30$) and morbidly obese($BMI{\geq}30$) according to their BMI. Body composition was determined by bioelectrical impedance analysis(BIA) method. Dietary intakes were examined by 3-day record method and nutrient intakes were analyzed by the Computer Aided Nutritional analysis program for professionals(CAN-pro 3.1). Serum lipid levels were measured using automatic biochemical analyzer(Selectra E). The average age, height weight and BMI of subjects were 31.7 years old, 159.3cm, 69.4kg, and $27.4kg/m^2$, respectively. Their average consumption of energy were 1712kca1 and 86.4% of estimated energy requirement(EER). Their mom ratio of carbohydrate:protein:fat was 55.2:14.6:30.2. Particularly, the fat consumption of subjects tended to be elevated with increasing BMI. There was no significant difference in nutrient intakes among 3 groups. But the mom intakes of Ca, Fe, vitamin C and Na of all the subjects were 70.1%, 81.2%, 75.7% of recommended intake(RI) and 258.9% of adequate intake(AI), respectively, The intakes of vegetables and seaweeds were significantly higher in morbidly obese group while the intake of fruits was higher in overweight group compared to the other groups. Serum lipid analysis showed that there were no significant differences in the levels of total cholesterol, triglyceride and LDL-cholesterol among the groups. But the serum HDL-cholesterol level of the overweight group was significantly higher than that of the other groups. LDL-/HDL-cholesterol ratio and AI index were significantly higher in the morbidly obese group compared to the other groups. In addition, The systolic blood pressure of morbidly obese group was significantly higher compared to the other groups. Overall data suggest that morbidly obese women have to more concern about reducing systolic blood pressure and nm lipid levels by decreasing their fat consumption and salt intakes as well as loosing body fat. In addition, all the subjects participated in this study have to be careful about their meals and health-related behaviors in order to prevent obesity-related chronic diseases.

• The Journal of Advanced Prosthodontics
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• 제5권1호
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• pp.9-15
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• 2013

PURPOSE. The purpose of this study was to determine accurately the part of the tragus to be used to form the Ala-Tragal line or Camper's line in orthognathic profile patients. MATERIALS AND METHODS. 150 dentate subjects with age of 18-40 years with orthognathic profile were sampled. Life-size lateral digital photographs of the face with fox plane were taken in natural head position. Different angles between Eye-Ear plane and occlusal plane ($OT_1$-OP), Eye-Ear plane and ala-superior border of tragus ($OT_1-AT_1$), Eye-Ear plane and ala-middle border of tragus ($OT_1-AT_2$) and Eye-Ear plane and ala-inferior border of tragus ($OT_1-AT_3$) were calculated using computer software package, AutoCAD 2004. From the three angles formed by the Eye-ear plane ($OT_1$ or FH plane) and the ala-tragal lines, the one closest to the angle formed between Eye-Ear plane ($OT_1$) and occlusal plane (OP) was used to determine the occlusal plane of orientation. The obtained results were subjected to ANOVA F test, Tukey's Honestly significant difference test, followed by Karl Pearson coefficient of correlation test. P values of less than 0.05 were taken as statistically significant. RESULTS. The mean of base line angle i.e. $OT_1$-OP angle ($11.96{\pm}4.36$) was found to be close to $OT_1-AT_2$ angle ($13.67{\pm}1.93$) and $OT_1-AT_3$ angle ($10.31{\pm}2.03$), but $OT_1$-OP angle was found to be more closer to $OT_1-AT_3$ angle. Comparison of mean angles showed that $OT_1$-OP angle in both males (11.68) and females (12.51) is close to $OT_1-AT_3$ angle (males- 11.01, females- 11.95). CONCLUSION. The line joining from ala to the lower border of the tragus was parallel to the occlusal plane in 53.3% of the subjects. There was no influence of the sex on the level of occlusal plane.

• 전자공학회논문지CI
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• 제48권2호
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• pp.28-37
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• 2011

최근 건강에 대한 관심이 고조 되면서 발과 다리에 대한 진단, 치료, 예방의 전반적인 진료를 맡고 있는 족부의학(Podiatry)이 주목받고 있지만 국내 연구는 미비한 실정이다. 또한 임상 데이터 분석에 있어 대부분의 기존 연구들은 기초 통계적인 방법에 근거한 정량분석만을 수행함으로서, 획득된 정보를 임상에 적용 하는데 있어서는 충분한 신뢰성을 보장할 수 없다. 임상데이터 마이닝은 데이터마이닝의 다양한 분석 방법론을 이용하여 의료 현장에서 발생한 임상 데이터를 분석함으로서 전문가의 진단과 치료 과정의 결정에 도움을 주고 있다. 결정트리(Decision Tree) 알고리즘은 분석과정의 설명과 표현성이 좋고, 결과에 대한 해석이 편리하여 임상에서 적용하기가 용이하다. 본 연구에서는 신뢰성 있는 족부 임상 진단 평가를 위해 충남대학교병원 재활의학과 신발클리닉에 내원한 환자 1310명(남자:633명, 여자:677명)의 2620족(foot)을 대상으로 수집된 진료 데이터에 결정트리를 적용하여 22개의 족부 질환 인자에 따르는 15개의 족부 질환을 분류하고 그에 대한 64개의 진단 규칙을 탐사 하였다. 또한 5개의 클래스(영유아, 소아, 청소년, 노인, 전체)로 분류된 각 그룹들로부터 생성된 결정 트리를 통해 각 클래스의 질환 특징과 질환 주요 인자, 클래스 간 상관관계를 비교, 분석하였다. 탐사된 결과는 족부 임상 전문가의 의사결정에 더욱 정성적이고 유용한 선험적 지식을 제공할 것이고, 효과적이고 정확한 진단과 예측을 위한 임상 도구로써 사용될 수 있다.

• Journal of Periodontal and Implant Science
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• 제35권4호
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• pp.961-974
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• 2005

Various biological approaches to the promotion of periodontal regeneration have been used. These can be divided into the use of growth and differentiation factors, application of extracellular matrix proteins and attachment factors and use of mediators of bone metabolism. The purpose of this study was to evaluate the effect of enamel matrix protein and platelet-rich plasma on the treatment of intrabony defect, with bovine-derived bone powder in humans by digital subtraction radiography. 12 teeth(experimental I group) were treated with enamel matrix protein combined with bovine-derived bone powder and 12 teeth(experimental II group) were treated with platelet-rich plasma combined with bovine-derived bone powder. The change of bone density was assessed by digital subtraction radiography in this study. The change of mineral content was assessed in the method that two radiography were put into computer program to be overlapped and the previous image was subtracted by the later one. Both groups were statistically analyzed by Wilcoxon signed Ranks Test and Mann-whitney Test using SPSS program for windows(5% significance level). The results were as follows: 1. The radiolucency in 3 months after surgery was significantly increased than 1 month after surgery in both groups(experimental I and II groups)(p<0.05). 2. The radiopacity in 6 months after surgery was significantly increased than 3 months after surgery in both groups(experimental I and II groups) (p<0.05). 3. In experimental I group, there was no significant difference between 1 month and 6 months after surgery. 4. In experimental II group. the radiopacity in 6 months after surgery was significantly increased than 1 month after surgery(p<0.05). 5. There was no significant difference between experimental I and II group at 1 month and 3 months after surgery, but the radiopacity in experimental II group was significantly increased at 6 months after surgery(p<0.05). In conclusion, platelet-rich plasma can enhance bone density than enamel matrix protein until 6 months after surgery.

• 한국경제지리학회지
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• 제10권1호
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• pp.44-63
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• 2007

이 논문은 대용량의 교통카드 트랜잭션 데이터베이스에서 통행패턴을 찾아내는 데이터 마이닝 방법의 개발에 초점을 두었으며, 결과로 도출된 통행패턴의 공간적 특징과 시점 간 차이를 분석하였다. 특히 대용량 데이터베이스에서 요구하는 지식을 효과적으로 발굴해 내는 순회 패턴 탐사법을 원용하여 통행패턴분석에 적절한 데이터 마이닝 알고리즘을 개발하여 2004년 이후 2006년 까지 3개년의 하루 교통카드 자료에 적용하였다. 또한 통행 순차 데이터베이스에서 오전 출근 시간대, 낮 시간대, 저녁 퇴근 시간대의 출발 정류장과 도착 정류장에 대한 통행 수요를 산출하여 시간대별 통행패턴의 공간 특징을 분석하였다.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2011년도 학술발표회
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• pp.18-18
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• 2011

Climate change is impacting and will increasingly impact both the quantity and quality of the world's water resources in a variety of ways. In some areas warming climate results in increased rainfall, surface runoff, and groundwater recharge while in others there may be declines in all of these. Water quality is described by a number of variables. Some are directly impacted by climate change. Temperature is an obvious example. Notably, increased atmospheric concentrations of $CO_2$ triggering climate change increase the $CO_2$ dissolving into water. This has manifold consequences including decreased pH and increased alkalinity, with resultant increases in dissolved concentrations of the minerals in geologic materials contacted by such water. Climate change is also expected to increase the number and intensity of extreme climate events, with related hydrologic changes. A simple framework has been developed in New Zealand for assessing and predicting climate change impacts on water resources. Assessment is largely based on trend analysis of historic data using the non-parametric Mann-Kendall method. Trend analysis requires long-term, regular monitoring data for both climate and hydrologic variables. Data quality is of primary importance and data gaps must be avoided. Quantitative prediction of climate change impacts on the quantity of water resources can be accomplished by computer modelling. This requires the serial coupling of various models. For example, regional downscaling of results from a world-wide general circulation model (GCM) can be used to forecast temperatures and precipitation for various emissions scenarios in specific catchments. Mechanistic or artificial intelligence modelling can then be used with these inputs to simulate climate change impacts over time, such as changes in streamflow, groundwater-surface water interactions, and changes in groundwater levels. The Waimea Plains catchment in New Zealand was selected for a test application of these assessment and prediction methods. This catchment is predicted to undergo relatively minor impacts due to climate change. All available climate and hydrologic databases were obtained and analyzed. These included climate (temperature, precipitation, solar radiation and sunshine hours, evapotranspiration, humidity, and cloud cover) and hydrologic (streamflow and quality and groundwater levels and quality) records. Results varied but there were indications of atmospheric temperature increasing, rainfall decreasing, streamflow decreasing, and groundwater level decreasing trends. Artificial intelligence modelling was applied to predict water usage, rainfall recharge of groundwater, and upstream flow for two regionally downscaled climate change scenarios (A1B and A2). The AI methods used were multi-layer perceptron (MLP) with extended Kalman filtering (EKF), genetic programming (GP), and a dynamic neuro-fuzzy local modelling system (DNFLMS), respectively. These were then used as inputs to a mechanistic groundwater flow-surface water interaction model (MODFLOW). A DNFLMS was also used to simulate downstream flow and groundwater levels for comparison with MODFLOW outputs. MODFLOW and DNFLMS outputs were consistent. They indicated declines in streamflow on the order of 21 to 23% for MODFLOW and DNFLMS (A1B scenario), respectively, and 27% in both cases for the A2 scenario under severe drought conditions by 2058-2059, with little if any change in groundwater levels.

• 한국정보통신학회논문지
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• 제19권11호
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• pp.2597-2602
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• 2015

경제 발전에 따라 식생활수준도 상당히 개선되어가고 있으며, 식이요법 관련하여 고영양 수요에서 건강식이요법으로 변화되어가고 있다. 그 가운데, 버섯은 고영양이면서, 풍부한 비타민을 함유하고 있는 건강식품으로서 많은 관심을 받고 있다. 이로 인해 버섯 산업은 새로운 유망산업으로 떠오르고 있다. 이를 위해 버섯에 대한 재배방식은 단순한 수공 재배모드에서 자동화된 공장화된 재배모드로 발전해오고 있다. 이와 같이 버섯의 생산 과정에서 요구되는 생육환경제어는 버섯의 산출량 및 품질에 직접적인 영향을 미친다. 이로 인해 본 논문에서는 버섯 재배에 중요한 환경요소들 중에서 습도가 버섯에 미치는 영향을 분석하고 현황을 조사해본다. 또한, 최근 농업기술 트랜드로 센서 네트워크를 적용한 진보된 IT 융합 서비스를 이용해서 더 효율적인 관리를 시도하고 있으며, 이를 본 연구에서도 적용하여 자동 습도조절환경을 구축하였다. 이를 통해 버섯의 생산 자동화 수준 및 버섯 단위 면적의 산출량과 품질, 버섯생산의 경제적 효율과 경쟁력을 확보할 수 있게 되었다.

• 한국인터넷방송통신학회논문지
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• 제18권6호
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• pp.43-52
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• 2018

가축 생산은 파키스탄 농촌 인구의 2 번째로 큰 활동이며, 더욱이 농촌 지역에 사는 파키스탄 전체 인구의 67 %가 축산 활동에서 수입을 얻고 있다. 파키스탄 농촌에서 농업의 한 부분인 가축 생산은 파키스탄인에게 매우 중요하기 때문에, 비용 효과가 높은 비율과 실질적인 기술 도입으로 이 분야를 더욱 발전시키는 것이 특히 중요하다. 파키스탄 농업 분야에서 이러한 중요한 분야를 개선하기 위한 노력의 일환으로 파키스탄의 가축 생산 및 관리의 마이크로 프로세서 및 마이크로 컨트롤러 등 IoT 기술을 활용하는 능력과 가능성을 더 잘 이해하기 위한 연구가 진행되고 있다. 사물의 인터넷은 IoT 기술의 적용에 따른 비용절감과 효과적인 축산관리를 통해 소규모 농촌 축산물을 대규모 사업으로 확대할 수 있게 한다. 본 논문은 스마트 동물 농장에 기초한 IoT 농업 모델을 언급하였으며 그 분야에 IoT 기술을 적용하는 단점과 장점을 분석하였다. 본 연구에서 안전 센서를 탐색하여 가축의 무리 활동을 모니터링하고 시간 응답에 필요한 중요한 작업을 감지하기 위하여 시스템의 일부로 이러한 센서 사용에 목표를 두었다. 이 시스템은 필요 시에 사료와 물을 공급하고, 가축의 질병과 열을 방지하기 위하여 스마트 폰이나 컴퓨터와 이러한 기기를 인터넷으로 연결하여 온도와 습도를 제어해 한다. 본 논문에서는 IoT에 기반한 스마트 동물 농장 모델을 제안하였다.

• 정보관리학회지
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• 제17권2호
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• pp.207-229
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• 2000

특정 이용자집단의 특성에 대한 이해의 부족으로 인해 도서관자동화 업무 종사자들이 정보시스템을 개발하고 채택하고 운영함에 있어 필요한 내용을 파악하고 최선의 선택을 하는 데 사실상 큰 어려움이 있었다. 본 연구는 남녀학생, 학부와 대학원 재학생, 인문계와 자연계 분야의 학생 등과 같은 특정 이용자 집단의 평가를 기반으로 이들 그룹의 특성에 관한 조사와 함께 이용자들이 선호하는 내용과 OPAC시스템이 가져야할 요소와 그 장단점을 시스템개발자들과 채택자들에게 제공하는 데 주안점을 두었다. 이를 위하여, 설문 조사를 대구경북지역의 대학에 재학중인 학생들을 대상으로 실시하였으며, 117개의 이용 가능한 데이터를 수집, 분석하였다. 여러 종류의 기술적, 추리적, 다변량적 통계분석 방법들을 SPSS의 도움을 얻어 적용하였다. 본 연구의 주요 발견사항은 각 유형별 시스템에 대한 선호도 및 여러 변인들간의 명확한 유의도 수치와 함께 본문에 잘 나타나 있다. 또한 어떤 새로운 시스템을 개발하거나, 채택하거나 이를 운영할 때 참조할 수 있는 결론과 권고하는 내용 및 OPAC 시스템과 이용자의 특성을 연구하고자 할 때의 미래 연구 주제도 제안하였다.