• 제목/요약/키워드: high order statistics

검색결과 552건 처리시간 0.029초

로드경비로봇 모델 연구 (A RodSecurityRobot Model)

  • 양경애;신승중
    • 문화기술의 융합
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    • 제4권4호
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    • pp.401-406
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    • 2018
  • 경찰청 생활안전국의 자료에 따르면 빈집 등에의 침입이 2013년부터 2016년까지 증가하였다. 이렇게 주거침입, 절도가 늘고 있다. 또한 검찰청 절도 통계자료에 따르면 2016년 총 203,573건의 절도범죄가 발생하였고 이중에 18.9%가 침입절도로 침입한 뒤에 절도를 한 것으로 나타났다. 이렇게 침입을 하여 절도를 하는 형태의 절도가 가장 많기 때문에 우리는 관리할 것이 많은 공장에 보안을 강화하기 위해 로드경비로봇 모델을 연구하게 되었다. 높은 곳까지 보안에 신경쓰기위해 드론까지 사용하여 지상을 관리하는 로봇과 협동하여 제어하는 로드경비로봇 모델을 제안하게 되었다. 로봇과 드론이 함께 움직이고 물체를 피해가는 자율주행 형태와 시간 간격을 체크하고 전력 부족 시에는 충전기에 다시 돌아와서 충전하는 형태의 모델이다.

강우 및 밝기에 따른 신호교차로 포화차두시간 분석에의 적응 뉴로-퍼지 적용 (Applying the ANFIS to the Analysis of Rain and Dark Effects on the Saturation Headways at Signalized Intersections)

  • 김경환;정재환;김대현
    • 대한토목학회논문집
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    • 제26권4D호
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    • pp.573-580
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    • 2006
  • 포화차두시간은 신호시간 설계와 교차로 용량추정에 있어서 중요한 변수 중에 하나이다. 그러나 현재의 기법은 신호교차로에서 포화차두시간에 영향을 미치는 요인들 중 정성적인 요인들을 다루기에는 부적절하다. 본 연구에서는 퍼지적 성격을 가진 정성적 인자인 강우조건과 주변 밝기정도를 선택하여 ANFIS를 이용해서 현장에서 관측된 관측치와 입 출력 데이터 집합의 학습을 통해 퍼지근사추론 모형을 구축하였다. 강우조건은 강우량에 따라 3개의 퍼지변수로, 주변 밝기정도는 2개의 퍼지변수로 구분하였다. 이렇게 구축된 모형의 예측력은 검증자료를 이용한 관측치와 추론치를 비교함으로써 평가되었다. 결정계수와 오차 및 분산정도를 나타내는 척도인 평균절대 오차(MAE)와 평균제곱근 오차(MSE)가 각각 0.993, 0.0289, 0.00173으로 나타나 본 모형의 설명력이 높은 것으로 평가 된다.

A Study on the Safety Measures for Thermal Diseases, Focusing on the Cases of Disaster by Construction Industry

  • Hye-Ryeong O;Won-Mo GAL;Ok-Nam Park;Mi-Hwa JANG;Seok-Soon KWO;Seung-Hyuck PARK
    • 웰빙융합연구
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    • 제7권2호
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    • pp.49-56
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    • 2024
  • Purpose: Construction sites are currently facing a socialization problem as the incidence of thermal disease-related disasters increases due to summer heat waves, exacerbated by factors like the concentration of middle-aged and older workers and global warming. The reason why construction sites are particularly vulnerable to heat waves is that there are many outdoor work, which is the peculiarity of the construction industry, and most of the construction workers are elderly. This study analyzes disaster statistics of workers at construction sites for five years to investigate the occurrence of thermal diseases and analyze factors through disaster cases to provide basic data for future disasters to be reduced. Research design, data, and methodology: According to the Construction Workers' Mutual Aid Association, as of June, more than 60% of the construction workers working in the field were in their 50s and 60s. More than 24% are in their 60s and older. Thermal diseases caused by heat waves occur when exposed to high heat or strong sunlight for a long time, accompanied by headaches and dizziness. The problem is that many elderly people have underlying diseases, so if they lose consciousness, they cannot easily recover and are likely to die. Results: According to industrial accident statistics, 182 people were injured by heat-related diseases in the summer from 2016 to 2021, of which 29 died. In particular, in the construction industry, which has a lot of outdoor work, 87 people were injured and 20 people died. Conclusions: In order to prevent heat diseases caused by outdoor work, it is emphasized that exposure time is controlled, and sufficient rest and hydration are essential. Rest, water, and shade are in line with the three principles.

부인과 수술 후 한양방 협진 치료의 효과 연구 (Effect on Oriental-Western Medicine Intergrative Care after Gynecology Surgery)

  • 이승환;이인선;조혜숙;김규곤
    • 대한한방부인과학회지
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    • 제24권3호
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    • pp.127-145
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    • 2011
  • Purpose: The purpose of this study is to analyze the effect of oriental-western medicine integrative care after gynecology surgery by DSOM((Diagnosis System of Oriental Medicine) and improvement of major symptoms. Methods: 66 patients belonged to the experimental group and 47 patients belonged to the control group out of 113 patients taken gynecology surgery. We studied general characteristics and difference on DSOM results between the two groups. And we had patients answer questionnaires about major symptoms such as abdominal discomfort, headache, fatigue, urinary discomfort, constipation, lumbago, edema, tingling, digestive disorder, cough, pruritus, arthralgia, cold feeling by VAS (Visual Analogue Scale) in order to analyze improvement and difference between two groups. Results: Experimental group had significantly high score on deficiency of blood, blood stasis, dryness, spleen, kidney, phlegm and high frequency on deficiency of blood, dampness, kidney, phlegm pathogenesis in DSOM. It had significantly high intensity in symptoms of abdominal discomfort, headache, fatigue, urinary discomfort, constipation, lumbago at the first time, and headache at 1 month after western hospital discharge out of symptoms associated with surgery. And it had significantly high improvement in symptoms of abdominal discomfort, headache, urinary discomfort, constipation at oriental-western integrative hospital discharge, and headache, fatigue, urinary discomfort, constipation, lumbago at 1 month after western hospital discharge out of symptoms associated with surgery. Conclusion: We recognized that oriental-western medicine integrative care after gynecology surgery has significant effect.

수도권지역 고등학생의 흡연 및 음주실태와 구강자각증상과의 관련성 (Relationship between perceived oral symptoms and smoking, drinking of high school students in metropolitan area)

  • 김선주;한경순
    • 한국치위생학회지
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    • 제12권3호
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    • pp.553-562
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    • 2012
  • Objectives : The purpose of this study was to examine actual conditions of smoking and alcohol drinking behaviors among high school students, so that it could recognize possible harmful effects of smoking on oral health and could give positive motivations for students to quit smoking and drinking. Methods : This research was based on self-filling survey which 1,385 high school students in metropolitan area in Korea from September 5 to October 28, 2011. Surveyed data were analyzed by descriptive statistics, ${\chi}^2$-test and logistic analysis using SPSS WIN 12.0 program and its signification level was 0.05. Results : 1. As for smoking rate and drinking rate, boy students accounted for 11.6% and 25.4%, thereby having been higher than girl students(p<.001). It was the highest in over 180 cm(16.0%, 35.0%, p<.001) for height, in 60-under 70 kg for weight(13.4%, 23.5%, p<.001), and in a case of profession for mother's job(13.8%, 28.4%, p<.005). 2. The perceived oral symptoms had relationship with the less than 10 cigarettes of smoke (OR=2.41; 95% CI:1.31-4.41), more than 11 cigarettes of smoke (OR=3.16; 95% CI:1.42-7.00) and more than 1 bottle of alcohol (OR=1.75; 95% CI:1.00-3.06). Conclusions : This result implies that adolescents' smoking and drinking have correlation with oral health status, which makes uncomfortable sense felt given chewing along with the pain in teeth and gum. Based on the above findings, a school or community needs to reinforce education for preventing smoking and drinking and to offer environment available for practicing anti-smoking and anti-drinking plan, in order to reduce adolescents' smoking and drinking.

치과위생사의 코로나19 감염관련 지식, 감염관리 수행 및 사회심리적 건강 관련 연구 (A study on the relations of COVID-19 infection related knowledge, infection control performance, and psychosocial well-being of dental hygienists)

  • 문상은;양진주;홍선화;이보람;김희정;서가혜;김은채
    • 한국치위생학회지
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    • 제21권5호
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    • pp.675-683
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    • 2021
  • Objectives: This study aimed to verify the relations of COVID-19 infection-related knowledge, dental infection control performance, and psychosocial health of dental hygienists. Methods: From the data was analyzed through the frequency analysis, t-test, one way ANOVA, and pearson's correlation analysis with a total of 198 dental hygienists using SPSS Statistics 21.0. Results: The correct answer rate for knowledge about COVID-19 was higher with a bachelor's degree or higher. Thus, when the level of education was higher, the performance was also high (p<0.01). COVID-19 infection control performance was highly shown in case of high age (4.43) (p<0.05) and the married (4.42) (p<0.01). Infection control performance was high when they had an educational experience of COVID-19 infection control (4.46), and when the infection control guidebooks were equipped in their workplaces (p<0.001). Degree of psychosocial health of research subjects was shown in the order of potential stress (60.6%), high-risk stress (23.7%), and healthy (15.7%). Infection control performance was higher, the psychosocial health was healthy. Conclusions: For the response to COVID-19 infectious disease and the preparation for mutated viruses and new infectious diseases in the future, it would be necessary to establish the concrete measures for establishing the strict infection control system for dental clinics and also enhancing the psychosocial health of dental hygienists.

중학생의 피로자각증상과 체형 및 건강의식과의 관련성에 관한 연구 (Relationship Between Subjective Fatigue Symptoms, Body Type and Health Awareness in Middle School Students)

  • 송인순;조영채
    • 한국학교보건학회지
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    • 제10권2호
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    • pp.169-178
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    • 1997
  • In order to investigate the complaint rates of subjective fatigue symptoms and study the relationship between them and body type, health awareness in middle school students, we carried out a survey of 1,209 students (654 boy students and 555 girl students) at a middle school in Taejon City by a self-recorded questionnaire. The survey was conducted in June, 1997. The results obtained were as follows: 1. Among complaints of fatigue, "feel like lying down" was the highest, followed by "feel anxious about things", "feel drowsy", "yawning a lot", "eye strain" and "whole body feels tired" in descending order. 2. In the average weighted score of fatigue complaint, dullness and sleepiness (I) was the highest, followed by a difficulty in concentration (II) and bodily projection of fatigue (III) in descending order. Fatigue seems to create mental stress rather than physical burdens. 3. In the classification of body type based on the $R\ddot{o}hrer$ index, the obesity type (145 and above) was 11.0%, standard type (110~144) was 64.7% and leptosomic type (l09 and below) was 24.3%. Comparison between both sexes revealed that the rate of obesity and leptosomic types were significantly higher in boy students than in girl students. 4. In terms body type awareness, the statistics are the following: those who consider themselves to be standard type, 44.3%, slightly obese 24.5%, leptosomic, 23.5% and obese 7.8%. However, the level of obesity awareness was significantly higher in girl students than in boy students. 5. As for health awareness, 36.5% considered themselves healthy, 5.4% generally healthy and 10.1% a little unhealthy, but the level of unhealthy awareness was higher in girl students than in boy students. 6. In the relationship between body type and health awareness, most students thought that they were obese in spite of their standard body type. Also, many students who were obese and leptosomic tended to consider themselves to be a little unhealthy. 7. The more the students were obese or felt unhealthy, the more the average weighted score of fatigue complaints was high.

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국내외 수학교육 연구 동향 비교 분석 (A Comparative Analysis on Research Trends of Secondary Mathematics Education between Korea and Overseas)

  • 박선영;김원경
    • 한국수학교육학회지시리즈A:수학교육
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    • 제50권3호
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    • pp.285-308
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    • 2011
  • The objective of this study is to review how researches on mathematics education are being conducted currently in Korea and overseas and to examine the current state of domestic researches on mathematics education from a broader view. Although many efforts have been made to understand trends in researches on mathematics education, there have been few in depth studies on research trends in overseas or for comparison between domestic and overseas trends. Thus, this study classified and analyzed 181 domestic articles between 2005 and 2009 in the journals and and 201 overseas articles in the journals and according to year, research area, research contents, school level, research method, and key words using the PME classification system with some modification. Through these analysis, we examined research trends on secondary mathematics education in Korea and overseas. The research findings are as follows. First, 'teaching learning process' was a spotlight area both at home and overseas, and 'realistic mathematics' and 'social cultural subjects' were not covered much either at home or overseas. 'Mathematical communication' occupied a very small portion in Korea but was a highly interesting area in overseas research. Second, research contents of interest were different between Korea and overseas. Research on general area was the mainstream. But geometry and statistics were mainly studied in Korea and algebra and analysis in overseas. Third, research related to middle school was twice more than that related to high school in Korea, But, research related to middle school was the same as high school in overseas. Fourth, qualitative research was the absolute majority both at home and overseas, and philosophical didactical analysis was used only in Korea. Fifth, the order of key words were problem solving - teacher - curriculum - creativity - textbook in Korea, but teacher - teaching - semiotic - affective factor - proo f- problem solving - technology in overseas.

기능성 섬유 유아복 구매자와 비구매자간의 구매 행동 및 구매 특성 비교 (The Purchasers vs. Non-Purchasers of Performance Infants' Wear: Shopping Behavior, Shopper Characteristics, and Reasons for Purchase/Non-Purchase)

  • 홍경희;이윤정
    • 복식문화연구
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    • 제13권6호통권59호
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    • pp.1023-1036
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    • 2005
  • The heightened consumers' interest in health and well-being gave rise to the needs for performance infants' wear, which are made with environmentally-friendly and healthy functional materials. This study intends to compare purchasers and non-purchasers of performance infants' wear in terms of their shopping behavior, shopper and infants' characteristics, and reasons for purchasing or not purchasing performance infants' wear. A total of 241 questionnaires were collected from women with infants less than 4 years old, who are living in the Seoul metropolitan area. Using SPSS 10.0, chi-square, paired t-test, and descriptive statistics were calculated to analyze the data. The results of the study were as follows: First, the purchasers of performance infants' wear shopped more often at department stores and were more likely to buy comparatively high-price products than non-purchasers. Second, for performance infants' wear, non-purchasers considered laundry/care methods and fiber contents more, while purchasers considered colors, design, price, and performance of the products less than for infants' wear in general. Third, in terms of demographic characteristics, significant differences were found for the number of children and the child's birth order. Fourth, the primary reason for buying performance infants' wear was 'health'. The primary reason for not buying was 'too high price' and 'lack of information'. The 'high price compared to its performance' and 'lack of color choice' were among the purchasers complaints about performance infants' wear.

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"대" 지목에 의거한 온실가스 분포의 공간성 평가 (Evaluating Spatiality of Green-House Gas Emission in Building Site)

  • 김준현;엄정섭
    • 한국GIS학회:학술대회논문집
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    • 한국GIS학회 2010년도 춘계학술대회
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    • pp.94-102
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    • 2010
  • 오늘날 지목은 토지의 이용용도나 이용형태를 결정짓는 가장 구체적인 법률적 기준이 되고 있다. 지목은 토지의 주된 사용용도에 따라 분류되기 때문에 주 사용용도가 동일하다면 모두 같은 지목으로 결정하고 있다. 동일한 "대" 지목이라 하더라도 구체적으로는 단독주택, 연립주택, 다세대주택, 빌라, 아파트, 주상복합, 상업 업무용, 나대지 등으로 다양하게 이용되고 있어 그 명확한 구분이나 분류기준 등에 있어 한계성을 가지고 있으며 녹색성장을 위한 온실가스 배출실태나 감축 또는 통계산정에 있어서 용도별 배출특성을 다양하게 분석 할 필요성이 제기되고 있다. 그래서 본 연구는 기관별 다른 분류체계를 가진 5개의 도면을 중심으로 이산화탄소 배출량을 실제로 측정하여 분석한 결과 계절별은 겨울, 봄, 가을, 여름순으로 측정 되었으며, 겨울과 여름의 가장 큰 분포특성은 1.78배, 평균 1.35배가 높게 나타났으며, 오전 9시와 15시의 기온이 약 $11^{\circ}C$ 변화할 때 22ppm으로 오후가 높게 측정되었다 용도별로 분석한 결과 단독주택에 비해 상업 업무용은 4.04배, 주상복합은 1.47배나 높게 배출되었다.

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