• 제목/요약/키워드: regular relation

검색결과 295건 처리시간 0.024초

안정상태에서의 뇌파와 호흡의 연관성에 관한 연구 (A Study on the Relation between Respiration and EEG in Stable State)

  • 김영서;민홍기
    • 전기전자학회논문지
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    • 제12권4호
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    • pp.204-210
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    • 2008
  • EEG 신호 중, 알파파는 안정시에 우세하게 나타나며 베타파는 흥분시에 우세하게 나타나는 것으로 알려져 있다. 또한 동양의 한의학에서는 상대적으로 길고 고른 호흡일 때가 짧고 변화가 심한 호흡일 때 보다 안정된 상태를 나타낸다고 알려져 있다. 본 연구에서는 EEG의 안정상태를 정량적으로 나타내기 위한 뇌파의 정량화 지표와 호흡의 안정상태를 정량적으로 나타내기 위한 호흡 정량화 지표를 정의하여 안정상태에 있어서 EEG와 호흡의 연관성을 찾아내고자 하였다. 총 20명의 피험자에 대해 각각 20분간의 실험을 통해 본 연구의 유효성을 검증하였다.

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가상 평면 기법을 이용한 3차원 기하 정보 획득 알고리즘 (The 3D Geometric Information Acquisition Algorithm using Virtual Plane Method)

  • 박상범;이찬호;오종규;이상훈;한영준;한헌수
    • 제어로봇시스템학회논문지
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    • 제15권11호
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    • pp.1080-1087
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    • 2009
  • This paper presents an algorithm to acquire 3D geometric information using a virtual plane method. The method to measure 3D information on the plane is easy, because it's not concerning value on the z-axis. A plane can be made by arbitrary three points in the 3D space, so the algorithm is able to make a number of virtual planes from feature points on the target object. In this case, these geometric relations between the origin of each virtual plane and the origin of the target object coordinates should be expressed as known homogeneous matrices. To include this idea, the algorithm could induce simple matrix formula which is only concerning unknown geometric relation between the origin of target object and the origin of camera coordinates. Therefore, it's more fast and simple than other methods. For achieving the proposed method, a regular pin-hole camera model and a perspective projection matrix which is defined by a geometric relation between each coordinate system is used. In the final part of this paper, we demonstrate the techniques for a variety of applications, including measurements in industrial parts and known patches images.

음성(音聲)과 오장(五臟)의 관계에 대한 고찰(考察) (A Study on the relation of voice and O-jang(五臟))

  • 백유상
    • 대한한의학원전학회지
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    • 제19권2호통권33호
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    • pp.97-107
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    • 2006
  • From the study on the relation of voice and O-jang(五臟廳), the conclusion is as follows. The function of breathing out in larynx is involved with lung and kidney. Lung press out the air, at the same time, kidney supports that to maintenance the density of air constantly. So the person who has short breathing can not make strong voice, and also if having a weak kidney in upper Cho[下蕉], their voice will be changed so very softly to cannot make hard type of voice and lingering sounds. Opening and Closing of vocal cords are controled by liver and spleen. when vocal cords are contracted, liver makes tension, whereas spleen does in slackness. So liver is likely to make high-piched sounds in tension of vocal cords, and spleen is the same to do smoothy and husky sounds through relaxing the vocal cords. In the rising condition of liver function, the temp of speech become fast, and more the pronunciation is clearer, it means that the function of thinking by spleen is operated well. Otherwise, indistinct pronunciation means that in the body seup-sa(濕邪) spreads. Also depression of emotion in speech often makes Gi(氣) of heart weaker, whereas it means regular condition of heart including Simpo(心包) that expression of emotion looks happy.

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직장인들의 생활습관 행태와 건강상태의 관련성 (Relation between Employees' Life patterns and Health conditions)

  • 김남진
    • 보건교육건강증진학회지
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    • 제24권2호
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    • pp.63-75
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    • 2007
  • Purpose: The research was performed to provide basic information and bring importance to people's attention based upon seizing relation between employees's life patterns and health conditions in their daily lives. Method: This study was done from October 9th, 2006 to 27th and targeted on people who work more than 1 year in Seoul and Kyung-gi area including 700 people; 350 of males, 350 of females. In the experiment, there are 8 measurable variables which are weight, smoking, drinking, exercise, sleeping, having breakfast, regular time for meal and having snack. The survey questionnaire used THI. The collected data was analyzed using t-test, one way ANOVA, Pearson correlation coefficient and Multiple regression with SPSS/PC. Results: 1) It showed different data based on general traits such as gender, age, marriage, job and working time. 2) It also displayed different data in physical, mental and total health conditions depending on general traits. 3) The rate of symptom appeal was noticeably low as the body condition is in a good shape. 4) It exhibited that the variables for the rate of symptom appeal was negatively related to both male and female. 5) The variables affected to health conditions were age, exercise, having snack, sleeping, time for meal and smoking for male and weight, sleeping and time for meal for female. Conclusion: It is shown that if a person has a good life patterns in his/her daily life, he/she has a low rate of symptom appeal, which means he/she has better both physical and mental conditions.

해양계열 대학생의 성적 특성과 취업률의 서술통계해석 (Descriptive Statistical Analysis on Grade Characteristics and Employment Rates of Ocean-Related College Students)

  • 이주원;이정미;나원배
    • 수산해양교육연구
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    • 제23권4호
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    • pp.615-625
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    • 2011
  • This study presents a descriptive statistical analysis on grade characteristics and employment rates of three ocean-related departments at a university. The ocean-related departments belong to the same college along with the other six departments. To obtain the correlation between the grade characteristics and employment rates, we carried out the followings. Firstly, four-year employment rates and six-semester GPAs (grade point averages) were obtained from the nine departments. Secondly, the box-and-whisker plots were constructed for each data set to capture the grade characteristics (mean, the first quartile, median, third quartile, whisker+, and Q3 box). Finally, the grade characteristics and employment rates were correlated. It is shown from the correlation analysis that the employment rate has a positive linear relation with the mean or third quartile, while the rate has a negative linear relation with the whisker+ or Q3 box, for the ocean-related departments possibly because these departments have higher regular employment rates than those of the other six departments.

Linear Form Finding Approach for Regular and Irregular Single Layer Prism Tensegrity

  • Moghaddas, Mohammad;Choong, Kok Keong;Kim, Jae-Yeol;Kang, Joo-Won
    • 국제강구조저널
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    • 제18권5호
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    • pp.1654-1665
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    • 2018
  • In an irregular prism tensegrity, the number of force equilibrium equations is less than the number of unknown parameters of nodal coordinates and member force ratios. As a result, the form-finding process normally becomes nonlinear with additional conditions or needs to be carried out with the use of iterative procedures. For cases of irregular prism tensegrity which involves large number of members, it was found that previously proposed methods of form-finding are not practical. Moreover, there is a need for a form-finding approach which is able to cater to different requirements on final configuration. In this paper, the length relation condition is introduced to be used in combination with the force equilibrium equation. With the combined use of length relation and equilibrium conditions, a linear form-finding approach for irregular prism tensegrity was successfully formulated and developed. An easy-to-use interactive form-finding tool has been developed which can be used for form-finding of irregular prism tensegrities with large number of elements as well as under diverse specific requirements on their configurations.

공동주택의 관계기관 예방안전지도가 화재대응에 미치는 영향 (The effect that Preventive Safety Guidance from the relevant administrative agency relevant to apartment house have on fire correspondence)

  • 김종남;공하성
    • 문화기술의 융합
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    • 제6권2호
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    • pp.369-386
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    • 2020
  • 이 연구는 관계기관의 상시순찰 출동 및 안전예방지도점검이 화재대응에 미치는 영향 간에 관리주체의 자체점검의 매개효과에 대해 인과관계를 규명하는데 목적이 있다. 분석결과는 다음과 같다. 첫째, 관계기관의 상시순찰 출동, 예방안전지도는 모두 자체점검에 정(+)의 영향을 미치는 것으로 나타났다. 이러한 결과는 관계기관의 상시순찰 출동이 빠를수록, 아파트에 대한 예방안전 지도점검조사가 많을수록 관리주체나 소방안전관리자의 자체점검의 역량도 높아지는 것으로 나타났다. 둘째, 관계기관의 상시순찰 출동, 예방안전지도가 화재대응에 정(+)의 영향을 미치는 것으로 나타났다. 이는 관계기관이 교통 혼잡지역 등에 대해 상시 순찰 출동이 빠를수록, 예방안전지도 점검이 많을수록 관할 아파트 화재에 대한 대응도 높아지는 것으로 나타났다. 마지막으로, 상시순찰 출동, 예방안전지도 및 자체점검이 화재대응에 모두 정(+)의 영향을 미치는 것으로 나타났다. 따라서, 관계기관의 상시순찰 출동 및 예방안전지도와 관리주체의 자체점검이 화재대응에 미치는 영향은 1단계에서 관계기관의 상시순찰 출동 및 예방안전지도가 자체점검에 유의미하고, 2, 3단계에서 관계기관의 상시순찰 출동 및 예방안전지도와 관리주체의 자체점검이 화재대응에 미치는 영향 간의 관계에서 자체점검은 매개효과가 있는 것으로 분석되었다.

운동습관이 혈액중 젖산농도 및 LDH 생성에 미치는 영향 (The Effect of Regular Exercise on the Level of Blood Lactate and LDH Production in College Women)

  • 남정혜
    • 한국식품영양학회지
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    • 제14권4호
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    • pp.355-359
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    • 2001
  • The purpose of this study was to compare the level of blood glucose and lactate and also plasma LDH production of college women in relation to exercise. College female student which majored athletics (E, exercise group, n=43) were recruited and compared with college women (Control group, n=60). Anthropometric measurements, triceps skinfold thickness were measured of two groups. And body fat mass and waist and hip circumferences were measured and the concentrations of plasma glucose, lactic acid and lactic acid dehydrogenase (LDH) were also assayed. Average height and weight of E group were slightly higher than that of control group. but there is no difference in body mass index (BMI) and waist hip ratio (WHR) between two groups. The percentage of body fat and body fat mass(kg) in E group was slightly lower than that of control group. Plasma glucose and LDH levels of E group were higher than those of control group, and plasma lactic acid concentration was significantly increased.

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투과성 방파제의 내부수위 변동과 방파제의 수리특성 (Hydraulic Characteristics of Permeable Breakwater in relation to the internal Waterlevel Fluctuation)

  • 윤한삼;전재우;류청로
    • 한국해양공학회지
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    • 제16권3호
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    • pp.46-53
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    • 2002
  • In the study, the interaction characteristics among incident waves, run-up and internal waterlevel at core layer of breakwaters were investigated. The effect of core materials on the internal waterlevel characteristics are also discussed using the results with both regular and irregular wave tests. The main results obtained are as follows; The higher internal waterleve was observed under the permeable breakwater with core layer of the lower permeability than with the higher one. And, the internal waterlevl decreased as far as the distance from the toe. In the irregular wave test, the grouping characteristics of incident waves make large fluctuation of the waterlevel. Especially, breakwaters internal waterlevel appeared to affect the hydraulic characteristics on slope.

산사태 발생지 예측을 위한 Topographic Position Index의 적용성 연구 (Study on Application of Topographic Position Index for Prediction of the Landslide Occurrence)

  • 우충식;이창우;정용호
    • 한국환경복원기술학회지
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    • 제11권2호
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    • pp.1-9
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    • 2008
  • The objective of the study is 10 know the relation of landslide occurrence with using TPI (Topographic Position Index) in the Pyungchang County. Total 659 landslide scars were detected from aerial photographs. To analyze TPI, 100m SN (Small-Neighborhood) TPI map, 500m LN (Large-Neighborhood) TPI map, and slope map were generated from the DEM (Digital Elevation Model) data which are made from 1 : 5,000 digital topographic map. 10 classes clustered by regular condition after overlapping each TPI maps and slope map. Through this process, we could make landform classification map. Because it is only to classify landform, 7 classes were finally regrouped by the slope angle information of landslide occurrence detected from aerial photography analysis. The accuracy of reclassified map is about 46%.