• 제목/요약/키워드: 인지적인 거리

검색결과 284건 처리시간 0.031초

Geostatistical Interpretation of Water Quality and Hydrogeochemistry of shallow Groundwater in the Uljin Area, Korea (지구통계 기법을 활용한 울진 지역 천부 지하수의 수질 및 수리지구화학 특성 해석)

  • 김남진;윤성택;김형수;정경문;김규범
    • Economic and Environmental Geology
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    • 제34권2호
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    • pp.175-192
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    • 2001
  • We have collected hydrogeochemical data of shallow groundwaters in the Uljin area located at eastern coastal area of Korea. Geostatistical analysis (ANOVA test, cluster analysis, and factor analysis) of the collected data sets was pert'onned, in order to evaluate both the spatial and/or temporal variation of water quality data and the groundwater contamination, as weJl as the principal reactions occurring in the aquifer. Results of the ANOVA test show that regional water chemistry are not significantly changed spatially in eight watersheds. However, some ions such as $Ca^{2+}$, $HCO_{3}^{-}$ and $SO_{4}^{2-}$ show a meaningful watershed variation. Water chemistry variation according to sampling time (season) is not shown, except for $SO_{4}^{2-}$. The cluster analysis shows that significant water chemistry variation is eXplained by the distance from the coast. Factor analysis indicates that the water chemistry is changed according to various factors as follows: in the order of decreasing importance, water-rock interaction (mainly, carbonate dissolution), sea-salt spraying, and then contamination by fertilizers and agrochemicals.

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Determinants of Utilization of Postnatal Care in Kapchorwa District, Eastern Uganda (산후건강관리서비스 이용의 결정요인에 관한 연구 -우간다 동부 카프초르와 구를 중심으로-)

  • Chelangat, Irene Kapsawani;Jin, Ki-Nam;Kim, Sunmi;Um, Tae Rim;Kim, Jinjoo
    • The Journal of Korean Society for School & Community Health Education
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    • 제16권1호
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    • pp.51-63
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    • 2015
  • 목적: 사하라 이남 아프리카 지역 중저소득국가 모성보건지표의 더딘 개선율은 MDG 5(모자보건향상) 미달성의 주요 원인 중 하나로 꼽힌다. 따라서 본 연구는 우간다 동부 카프초르와 구의 모성사망과 밀접한 산후건강관리(PNC, Postnatal care)서비스 이용결정요인을 파악하는데 있다. 이를 통해 지역건강관리자들에게 PNC 서비스 이용 개선을 위한 정책 수립 및 방안 마련에 기초자료를 제공하고, 궁극적으로는 MDG 5 지표 개선에 일조하고자 한다. 방법: 표본 집단은 카프초르와 구의 15세~49세 여성들 중 최근 1년 내에 출산을 경험한 자들을 대상으로 편의추출 되었다. 조사기간은 2014년 7월부터 10월까지였으며, 구조화된 설문에 총 171명이 응답하였고, 19명의 주요 정보제공자와의 심층면담도 실시하였다. 응답자의 사회인구학적 특성 및 PNC 이용행태를 알아보기 위해 빈도분석을 실시하였으며, 각 독립변수가 PNC 이용에 어떤 영향을 미치는지 파악하기 위해 로지스틱 회귀분석을 실시하였다. 결과: 응답자의 55%만이 의료시설의 PNC 서비스를 받은 것으로 나타났다. 로지스틱 회귀분석을 통해서는 응답자의 연령과 사회적 네트워크, 인지된 건강상태, 산전관리서비스 이용이 PNC 서비스 이용에 긍정적인 영향을 미치는 것으로 나타났으며 의료시설과의 거리, 가족의 규모는 부정적인 영향을 미치는 것으로 나타났다. 결론: PNC 서비스 이용개선을 위해서는 먼저 여성의 사회적 자본 확충 및 개선을 위한 모성보건교육인 소프트 인프라 지원이 지자체 차원에서 실시되어야 할 것이며, 서비스 이용을 가능케 하고 접근성을 높이는 응급후송체계 구축과 같은 물리적 인프라 지원도 도입되어야할 것이다. 또한 가족계획 서비스를 제공하는 등 모성보건관리에 대한 지자체의 민감성을 높이는 것도 필요하겠다.

Empirical Study on Female Characters in Team based Battle Games Preferred by Female Gamers (팀 기반 전투형 게임에서 여성 게이머가 선호하는 여성 캐릭터에 대한 실증적 조사 연구)

  • Song, Doo Heon
    • Journal of the Korea Institute of Information and Communication Engineering
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    • 제25권3호
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    • pp.403-411
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    • 2021
  • While there is no apparent gender difference on the number of game players and playing time in market survey especially if the age group is under 30, there still exists a strong gender stereotype on female characters with sexual objectification especially in team based battle games. Furthermore, there seldom exists any research on female gamers in this genre. In this paper, we investigate the preference of female characters and reasons of their choice among female gamers with Overwatch and Cypers which are recognized as having enough female players. In Overwatch with 231 responses, subjects prefer 'girl-crush' characters such as non-sexual Ana who age is in 60s. However, in Cypers that does not have female warrior character, subjects' preference is more affected by appearance but those characters with less functional ability are not frequently used in playing. Such practical avatar choice is often discovered among male players thus there is no gender difference in this case.

A Study on the Factors Influencing Job Satisfaction among Delivery Drivers of Online Hypermarket (온라인 대형마트 배송기사의 일자리만족도 영향 요인 연구)

  • Park, Sonhyo;Lee, Young-Min
    • The Journal of the Korea Contents Association
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    • 제22권4호
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    • pp.665-676
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    • 2022
  • The e-commerce had been expanding in the distribution channels, recently. Then, COVID-19 and social distancing rules led to a surge of online hypermarkets volume. In this study, we examined workplace environments of delivery drivers, firstly. Second, this study was also designed to examine the influencing factors of the perceived working environments change on the job satisfaction, dealing with the recent surge of work. We analyzed 324 data using various ways like descriptive statistics, one-way analysis of variance, factor analysis, and hierarchical regression analysis. The analysis revealed that their job satisfaction was lower than the average score and their working time was too long. In addition, the changes of the workplace environments were divided into labor intensity change and working condition change, which all had a significant effect on job satisfaction. So we should devise some long-term and short-term plans to make the level of job satisfaction among delivery drivers high on workplace environments.

A Study on the Implementation of a IoT Sensor-based Smart Compression System (센서 기반의 스마트 압축 시스템 구현에 대한 연구)

  • Oh, Eun-Young;Yoon, Keun-Young
    • The Journal of the Korea institute of electronic communication sciences
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    • 제16권6호
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    • pp.1287-1294
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    • 2021
  • This paper is a study on the implementation of a sensor-based smart compression system for improving home and street environments. Since modernization, the amount of garbage has been increasing every year, and this has seriously adversely affected not only people but also ecosystems such as marine pollution and soil pollution. In particular, in large cities with large floating populations, garbage is dumped on the streets without proper measures to deal with the amount of waste generated. In order to improve this problem, this paper intends to implement a system with automatic compression and opening/closing functions using sensors. This system is designed to activate automatic opening/closing function through an infrared sensor, and automatically opening and closing when the inclination is changed using an impact sensor. In addition, by installing a distance sensor, the amount of internal waste can be easily monitored from the outside, and a manual compression switch and a manual opening/closing switch is separately designed to enable opening and closing and compression as needed to increase the effectiveness.

Development of Ubiquitous Sensor Network Intelligent Bridge System (유비쿼터스 센서 네트워크 기반 지능형 교량 시스템 개발)

  • Jo, Byung Wan;Park, Jung Hoon;Yoon, Kwang Won;Kim, Heoun
    • Journal of the Korea institute for structural maintenance and inspection
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    • 제16권1호
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    • pp.120-130
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    • 2012
  • As long span and complex bridges are constructed often recently, safety estimation became a big issue. Various types of measuring instruments are installed in case of long span bridge. New wireless technologies for long span bridges such as sending information through a gateway at the field or sending it through cables by signal processing the sensing data are applied these days. However, The case of occurred accidents related to bridge in the world have been reported that serious accidents occur due to lack of real-time proactive, intelligent action based on recognition accidents. To solve this problem in this study, the idea of "communication among things", which is the basic method of RFID/USN technology, is applied to the bridge monitoring system. A sensor node module for USN based intelligent bridge system in which sensor are utilized on the bridge and communicates interactively to prevent accidents when it captures the alert signals and urgent events, sends RF wireless signal to the nearest traffic signal to block the traffic and prevent massive accidents, is designed and tested by performing TinyOS based middleware design and sensor test free Space trans-receiving distance.

The cooling effects of a paddy field area during 2006 summer (2006년 여름철 논에 의한 기온저감효과)

  • Kwon, Sung-Il;Kim, Jin-Soo;Park, Jong-Hwa;Oh, Kwang-Young;Song, Chul-Min
    • Proceedings of the Korea Water Resources Association Conference
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    • 한국수자원학회 2007년도 학술발표회 논문집
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    • pp.628-632
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    • 2007
  • 본 연구에서는 2006년 여름철(2006년 7월 15일${\sim}$9월 30일) 동안 서로 다른 토지피복형태(논, 밭, 도시녹지대 및 도시주택지)에서의 기온변화 특성을 비교하여 논에 의한 기온저감 효과를 파악하였다. 혹서기 동안 총 3회(2006년 8월 3일, 11일, 15일)에 걸쳐 논으로부터의 거리에 따라 기온을 실측한 결과, 논으로부터 거리가 멀어짐에 따라 기온이 상승하였으며, 170m 지점에서의 기온은 논 지점보다 14시에는 $2.3^{\circ}C$, 22시에는 $1.8^{\circ}C$, 익일 06시에는 $1.3^{\circ}C$ 높게 나타났다. 혹서기 동안 논, 밭, 녹지대, 주택지에서의 열대야 완화효과를 비교해보면, 논이 열대야를 완화시키는 효과가 가장 큰 것으로 나타났다. $25^{\circ}C$이하로 낮아지는 평균시각은 논이 22.36시, 밭이 24.0시, 녹지대가 2.2시, 주택지가 2.3시로 나타났고, 이 시각으로부터의 평균 지속시간은 논이 7.7시간, 밭이 7.3시간, 녹지대가 4.3시간, 주택지가 1.0시간으로 나타났다. 또한 평균 일최저기온은 논이 $23.1^{\circ}C$로서 밭과는 동일하게 나타났으며, 녹지대보다 $0.9^{\circ}C$, 주택지보다 $3.0^{\circ}C$ 낮게 나타났다. 그러나 논과 밭에서의 기온저감효과는 큰 차이를 보이지 않았는데, 이는 기온저감효과가 식생피복상태에 의해 크게 좌우되기때문으로 생각된다. 본 연구에서는 논과 밭에 의한 기온저감효과의 메커니즘은 파악되지 않았으나, 이는 다양한 논지대 및 밭지대를 대상으로 열수지 특성을 분석함으로써 구명할 수 있을 것으로 생각된다.자로서는 제방 마루의 토지이용 및 식생구조, 하도의 식생유형, 하도주변 토지이용, 하안(bank) 형상 및 구조, 수종 및 구조, 하도 및 하안 특징 및 구조 등으로 선정, 검토하였다. 이상의 하천교란과 관계되는 지표를 선정하여 물리적, 생태적 조사 및 교란평가기법(안)을 개발, 제시하였다.EX>)를 보였으며, 그 중 3명에서는 혈역학적으로 큰 의미가 없는 잔여단락이 있었다. 결론: 급성 심근경색증 후 심실중격 결손은 수술위험도가 높은 질환이지만, 수술 전 대동맥내 풍선펌프를 삽입하고 조기에 심실중격 결손부의 infarct exclusion 술식과 함께 관상동맥우회술을 시행함으로써 만족할 만한 수술 및 중기 결과를 얻을 수 있었다.출물 투여로 저하되었으나 NC군보다는 높게 나타났다. 간 중 중성지질 함량은 참나물 에탄올 추출물 투여 용량에 따른 유의차가 없었으나, 총콜레스테롤 함량은 고용량 병합투여한 HC-PBH군만 유의하게 저하되었다. 혈청 및 간 중의 지질 함량 변화는 정상식이를 급여한 NC군과 NC-PB군 간에는 유의차가 없었다. 따라서 고콜레스테롤식이를 급여하면서 참나물 에탄올 추출물을 병합투여 시에만 지질대사 개선 효과가 있는 것으로 여겨지며, 고용량 병합투여 시 효능이 더 큰 것으로 나타났다. 고콜레스테롤식이로 인한 산화적 스트레스가 고콜레스테롤혈증을 유발하였으며, 이는 참나물 에탄올 추출물에 함유된 항산화물질을 포함한 여러 생리활성물질이 영향을 미친 것으로 사료된다. 이상의 실험 결과에서 참나물 에탄올 추출물은 고콜레스테롤식이로 증가된 총콜레스테롤, LDL-콜레스테롤 및 중성지질 함량은 감소시켰고, HDL-콜레스테롤과 인지질 함량은 증가시킴으로써 지방간 및 동맥경화의 예방과 치료에 효과적일 것으로 판단되어 진다./hr/g$, 섭취 7일중 $8.123\;{\mu}g/hr/

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Design and Implementation of Visitor Access Control System using Deep learning Face Recognition (딥러닝 얼굴인식 기술을 활용한 방문자 출입관리 시스템 설계와 구현)

  • Heo, Seok-Yeol;Kim, Kang Min;Lee, Wan-Jik
    • Journal of Digital Convergence
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    • 제19권2호
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    • pp.245-251
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    • 2021
  • As the trend of steadily increasing the number of single or double household, there is a growing demand to see who is the outsider visiting the home during the free time. Various models of face recognition technology have been proposed through many studies, and Harr Cascade of OpenCV and Hog of Dlib are representative open source models. Among the two modes, Dlib's Hog has strengths in front of the indoor and at a limited distance, which is the focus of this study. In this paper, a face recognition visitor access system based on Dlib was designed and implemented. The whole system consists of a front module, a server module, and a mobile module, and in detail, it includes face registration, face recognition, real-time visitor verification and remote control, and video storage functions. The Precision, Specificity, and Accuracy according to the change of the distance threshold value were calculated using the error matrix with the photos published on the Internet, and compared with the results of previous studies. As a result of the experiment, it was confirmed that the implemented system was operating normally, and the result was confirmed to be similar to that reported by Dlib.

A Frequency Domain based Positioning Method using Auto Regressive Modeling in LR-WPAN (주파수 영역상의 AR 모델링 기반 이용한 LR-WPAN용 무선측위기법)

  • Hong, Yun-Gi;Bae, Seung-Chun;Choi, Sung-Soo;Lee, Won-Cheol
    • The Journal of Korean Institute of Communications and Information Sciences
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    • 제34권6C호
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    • pp.561-570
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    • 2009
  • Ultra-wideband communication systems based on impulse radio have merits that are possible for the high data rate transmission, high resolution ranging are positioning system. Conventionally, in order to accomplish these features, the high-speed ADC (Analog to Digital Convertor) is necessary to apply radio determination system operating in time domain. However, considering low rate - wireless personal area network (LR-WPAN) aims to low-cost hardware implementation, the expensive ADC converting GHz sampling per second is not appropriate. So, this paper introduces a low complex AR (Auto Regressive) model based non-coherent ranging scheme operating in frequency domain with using low-speed ADC utilizing analog Voltage Control Oscillator (VCO) mode for the frequency domain transformation. To verify the superiority of the proposed ranging and location algorithm working in frequency domain, the suggested IEEE 802.15.4a TG channel model is used to exploit affirmative features of the proposed algorithm with conducting the simulation results.

A Development of Wireless Monitoring System for Temperature Monitoring by using IR Sensor (적외선 센서를 이용한 열화상태 무선감시 시스템 개발)

  • Kim, Jihee;Kim, Sinwoo;Kang, Yongsoo
    • Journal of the Institute of Electronics and Information Engineers
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    • 제50권1호
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    • pp.239-245
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    • 2013
  • The temperature monitoring of power cable and cable junction point is the necessary link of the safe and reliable operation of the power system. Many kinds of cables and high voltage junction points are easy to exposed continuous vibrations and momentary impulse in industry field especially power plant industries. This system can predict the overheating of the electric cable interface and the possibility of all kinds of accident, and it helps for eliminating the hazards of electric cable interface and provides the effective guarantee for the safety operation. In order to avoid the faults of the inconvenience of installation and maintenance and the high cost of application, this system used small and contactless IR sensor module. The low power consumption is used in the system. The goal of this study is the low cost and on-line reliable monitoring of power cable and junction point temperature.