• Korean Journal of Environment and Ecology
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• v.28 no.2
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• pp.105-112
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• 2014

During incubation, pelagic seabirds undergo large variations in their body mass as a result of concomitant fasting. In Procellariifomes undergoing important changes in body mass through the incubation, body mass regulation could be an important factor in behavioural decisions for changing activities during the incubation. The aim of this study was to investigate the effect of individuals' quality and incubation behaviour on their body mass regulation in Streaked Shearwaters Calonectris leucomelas breeding at Sasudo Island, in Jeju, South Korea during incubation period, June to August in 2013. In our results, we found that there was no relationship between the daily body mass loss and body size or condition of Streaked Shearwaters. However, the daily body mass loss increased significantly as the incubation bout increased. Moreover, the daily incubation bout was positively related to their body size. Consequently, although breeders' qualities were not related to their daily body mass loss during the incubation, the incubation behaviour affecting their daily body mass loss was regulated by their body size. Therefore, the body size of Streaked Shearwater breeders is one of important factors in their decisions for the incubation behaviour.

• Journal of the Korean Institute of Intelligent Systems
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• v.20 no.4
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• pp.469-475
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• 2010

This paper presents controller design of a two wheeled mobile inverted pendulum robot for one man transportation vehicle. Since the overall mass is varying with different drivers, suitable controller gains are obtained through experimental studies. Variation of the center of gravity due to different masses also affects stable balancing control. Thus, the desired balancing angle si required to be modified with respect to different masses. To measure masses for different drivers, a weight scale is used and those data are used for balancing control through communication. The gain scheduling method of using data obtained from experimental studies allows the robot to have stable balancing performances.

• Journal of dental hygiene science
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• v.9 no.3
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• pp.257-263
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• 2009

The objective of this study is to establish the number of erupted $1^{st}$ molar, the age. sex and somatic measures of weight and height in population of Chungcheongnam-do, South Korea based cross sectional study. The consistent and complete data were obtained from 441 children with age of six. SPSS 12.0 was used for various statistical analyses including descriptive, cross tabulation, correlation and regression. Results demonstrates that variation of the number of the erupted $1^{st}$ molar was explained by age($x^2$(df)=117.68), height($x^2$(df=59.74) and weight($x^2$(df)=31.69) of children (P<.001). The study also showed the strong correlation among erupted $1^{st}$ molar rate, age, height and weight (p<.01). Numerical values of correlation among those are following: r = .45 between Erupted $1^{st}$ molar rate and age; r = .31 between erupted $1^{st}$ molar rate and height; r = .24 between erupted $1^{st}$ molar rate and weight; r = .40 between age and weight; r = .24 between age and height; r = .54 between height and weight. It was concluded that above variables influences one another and the age of the children is the greatest variable that influences the number of erupted $1^{st}$ molar, followed by height and weight of the children.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 1994.04a
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• pp.85-92
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• 1994

본 연구에서는 작업용 의자를 설계하고 평가하기 위한 한국인의 좌판과 등판의 형태 (contour) 모형을 제시하고자 한다. 신장, 앉은키, 몸무게, L5폭, T7폭 등을 측정하여 통계적으로 분석한 결과, 앉은키와 AC폭, 몸무게와 L5폭은 상관관계가 있는 것으로 밝혀졌다. 따라서, 사람의 좌판, 등판 접촉 형태를 측정하기 위해서 몸무게와 앉은키에 따라 각각 세 그룹으로 나누어 총 아홉 그룹으로 분류하였다. 자체 제작된 좌판과 등판의 접촉형태 측정기를 사용하여 각 그룹별로 측정점에 대한 계측을 통하여 형태자료를 수집하고, 통계분석을 통하여 한국인의 형태모형을 추출하고, 컴퓨터 그래픽을 이용하여 시각적 평가를 가능하게 하였다. 이를 통하여 작업용 의자의 성능 및 안락도 향상을 위한 체계적 접근방법을 제시하고, 평가에 있어서는 정량적인 척도를 제공할 수 있을 것이다.

• The Monthly Diabetes
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• s.86
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• pp.6-12
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• 1997

• Journal of the Korea Society of Computer and Information
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• v.28 no.11
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• pp.155-160
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• 2023

This paper presents a method for predicting blood pressure using the photoplethysmography signals. First, after measuring the optical blood flow signal, artifacts are removed through a preprocessing process, and a signal for learning is obtained. In addition, weight and height, which affect blood pressure, are measured as additional information. Next, a system is built to estimate systolic and diastolic blood pressure by learning the photoplethysmography signals, height, and weight as input variables through an artificial intelligence algorithm. The constructed system predicts the systolic and diastolic blood pressures using the inputs. The proposed method can continuously predict blood pressure in real time by receiving photoplethysmography signals that reflect the state of the heart and blood vessels, and the height and weight of the subject in an unconstrained method. In order to confirm the usefulness of the artificial intelligence-based blood pressure prediction system presented in this study, the usefulness of the results is verified by comparing the measured blood pressure with the predicted blood pressure.

• Journal of Nutrition and Health
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• v.20 no.5
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• pp.309-317
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• 1987

The Purpose of this study was to investigate physical conditions and related factors of 5th grade, in Korea. The number of students surveyed was 10.751 . School health records of 63 grade schools were used. The school health record of 5th grade contains results of physical examination from 1st grade to 5th grade and results of physical fitness assessment for 5th grade. A questionnaire was also administered to the student. 1) The proportion of mother who has a job was 29% of students surveyed. Since some of mothers were working at odd hour, it is hard to take care of student's meal and nutritional intake. The proportion of students who didn't eat breakfast everyday was 5.8% . Students who took medicine for health were 26% of total students surveyed. 2) Male students were taller than female students until 4 th grade. At 5 th grade, the mean height was 137.1cm for male students and 137.6cm for female students . At 5 th grade, the mean weight was 31.5kg for male students and 31.2kg for female students. The 10, 25, 50, 75.90 percentile of the total distribution was examined . By rising in grade, the height velocity was decreased for male student and increased for female students . The weight velocity was increased sharply for male and female students and the increasing velocity was larger in female than male students. Using heights and weights from 1st grade, BMI, RI, and RW were calculated. 3) The proportion of students who drank milk everyday was 49%, The \intake frequency of cookies, eggs, ice cream, chocolate were higher than the intake freguency of cheese, ham and soy bean milk

• Journal of The Korean Radiological Technologist Association
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• v.28 no.1
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• pp.299-300
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• 2002

• 건강소식
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• v.38 no.8
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• pp.30-31
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• 2014

무조건적인 체중감량은 우리 몸에 어떤 악영향을 끼칠까. 다이어트가 끝난 후에 피로와 우울감을 느끼거나 체력이 저하되고 변비가 심해지는 등 대사성 후유증을 겪었다는 여성들이 많다. 잘못된 다이어트 후 나타날 수 있는 후유증을 알아보자.

• 건강소식
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• v.36 no.9
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• pp.14-15
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• 2012

168cm 신장에 57kg의 몸무게. 펜싱 에페 선수로는 큰 신장도, 좋은 체격 조건도 아니다. 게다가 신아람 선수는 이번 올림픽이 그녀 생애의 첫 출전이었다. 금메달보다 빛나고 의미 있는 '은메달'을 목에 건 그녀의 성공 키워드는 과연 무엇일까.