• Title/Summary/Keyword: 시야

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Time-Space Analysis of Road Traffic Flows in Seoul (서울시 도로교통흐름에 대한 시.공간적 분석)

  • Lee, Keum-Sook;Min, Hee-Hwa;Park, So-Hyen
    • Journal of the Economic Geographical Society of Korea
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    • v.12 no.4
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    • pp.521-539
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    • 2009
  • This study investigates the time-space characteristics of the road traffic flows in Seoul and the relationship with land use patterns. For the purpose, we analyze the road traffic data collected at 118 observation sites over Seoul City area since 1993. We examine the time-trend of the annual average traffic flows per day during the last fourteen years. Three different trends are revealed: rapid increase during the time period between 1993 and 1997, maintenance same level after sharp decrease between year 1997 and 1998, and gradual decrease after sharp decrease between year 2003 and 2004. The spatial distribution patterns of road traffic flows have also been changed significantly during the period. The traffic flows in the urban center have been declined gradually, while the traffic flows in the boundary area and southern CBDs have increased dramatically. In order to examine the relationship with the changes in the land-use patterns and road traffic flows, we analyze the changes in the spatial distribution patterns of population and industries. We developed three multiple linear regression models to test the relationships between the changes in the land-use variables and road traffic flows.

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Effects of induced stereoacuity reduction on obstacle crossing (입체시력 감소가 장애물 보행에 미치는 영향)

  • Woo, Byung-Hoon;Sul, Jeong-Dug
    • 한국체육학회지인문사회과학편
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    • v.54 no.5
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    • pp.829-840
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    • 2015
  • The purpose of this study was to investigated into the kinematics and ground reaction force for gait on induced stereoacuity in normal subjects with normal sight. Eighteen subjects who passed the stereoacuity testing were participated in the experiment(age: 22.1±2.7 years, height: 176.8±4.4 cm, weight: 67.6±5.8 kg). The study method adopted 3D analysis with six cameras and ground reaction force with two force-plates. The results were as follows; In gait velocity, obstacle crossing gait was slower than flat gait. In angular displacement of hip joint, mostly obstacle crossing gait was more flexed than flat gait. In angular displacement of knee joint, obstacle crossing gait was more flexed than flat gait, and stereoacuity reduction gait in TO and FC2 were more flexed than normal vision gait. In angular displacement of ankle joint, obstacle crossing gait in FC2 was more flexed than flat gait. In trunk tilt, obstacle crossing gait in MSt, TO and MSw were more extended than flat gait. In GRF, there was no significant in Fx, obstacle crossing gait in right and left foot were bigger propulsion force than flat gait, obstacle crossing gait in right and left foot were bigger braking force than normal vision gait in Fy, and obstacle crossing gait in right and left foot were bigger than flat gait in peak F1 and peak F2 of Fz, and stereoacuity reduction gait in right foot was lower than normal vision gait in valley force of Fz.

Effects of Nutrition Knowledge and Food Habits on Nutrient Intake in High School Girl Students (도시 및 농촌 여고생의 영양지식과 식습관이 영양소 섭취에 미치는 영향)

  • 박은숙;이유숙;주은정
    • Journal of the East Asian Society of Dietary Life
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    • v.6 no.2
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    • pp.167-176
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    • 1996
  • This nutritional survey was conducted from July to August 1993, in order to investigate the nutrition knowledge, food habits, nutrient intake, and their correlation of high school girl students living in large city, middle and small city, and rural area. The subjects of this survey were 164 students living in large city, Seoul and Pusan, 289 students living in noddle and small city, Chonju and Iksan-City, and 252 students living in rural area, Samnye-Up and Kimje-Kun, Chonbuk-Province. The results obtained are summarized as follows: The perceived nutrition knowledge of large city, middle and small city, and rural area was 80.1%, 83.9%, and 76.0%, respectively, and their accuracy was 62.0%, 64.2%, 56.3% respectively The nutritional knowledge score of large city, middle and small city, and rural area was 14.90, 16.16, 12.84, respectively. The nutrition knowledge score was significant among large city, middle and small city, and rural area. The correlation coefficient between nutrition knowledge and food habits was significant among large city, and middle and small city students. The food habits score of rural area subjects were lowest. The correlation between food habit and calcium, vitamin 4 and vitamin C were significant among large city girls. In rural students the correlation between food habits and protein, phosphorus, iron, vitamin B1, vitamin B2, and vitamin C was significant.

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릴레이탐방-김상원 - 경기도 이천시 축산과 과장

  • 김동진
    • KOREAN POULTRY JOURNAL
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    • v.40 no.8
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    • pp.104-107
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    • 2008
  • 본고는 양계산업 발전을 위해 각 시.군 등 지자체에서 왕성한 활동을 벌이고 있는 축산관련 공무원을 찾아 매월 릴레이 형식으로 탐방을 실시, 지자체의 활동은 물론 인물을 소개하고 있다. 이달은 경기도 이천시 김상원 축산과장을 만나 이천시의 축산 정책 등을 들어보았다.

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A Plan of Connection between Crime Prevention through Environmental Design(CPTED) and Security System (환경설계를 통한 범죄예방(CPTED)과 시큐리티시스템(Security System) 간 연계방안)

  • Joo, Il-Yeob;Cho, Kwang-Rae
    • Korean Security Journal
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    • no.19
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    • pp.165-185
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    • 2009
  • This research presented a plan of connection between CPTED and Security System through analyzing relation between crime occurrence and residence environment, CPTED propulsion examples on domestic-oversea, relation between CPTED and Security System. The following was the result of the study. First, we should import CPTED and Security System for city and residential area crime prevention. Second, we should know that CPTED and Security System are not each other but complementary cooperation. Third, we must use Security System components correctly in CPTED's details design plan and consideration regard when we design CPTED. forth, we must develop and keep a plan of connection between CPTED and Security System.

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Basic Studies for the Breeding of High Protein Rice III. Effect of nitrogen, phosphorus and potassium fertilizers on the protein content in rice kernels (수도 고단백 계통육성을 위한 기초적 연구 III. 질소, 인산, 가리의 시용이 미립내 단백질 함량에 미치는 영향)

  • Mun-Hue Heu;Kwang-Ho Kim;Hak-Soo SUH
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.15
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    • pp.123-128
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    • 1974
  • An experiment was conducted under different N, $P_2O_5$ and $K_2O$ fertilizer levels to study the environmental effects on protein content in rice kernels. Protein content in rice kernels was mostly affected by N-fertilizer, and weakly affected by N, $P_2O_5$ and $K_2O$ fertilizers. High or low nitrogen level was not necessarily required to detect high protein lines. 20% selection among the total tested lines would be enough, at any level of N-fertilizer, to maintain genetically high protein lines.

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Analysis of water quality monitoring results during the rainfall period of Yeongju dam (영주댐 강우기 수질 모니터링 결과 분석)

  • Lee, Seungyoon;Shin, Cholong;Yi, Hye-suk;Chong, Sun-A
    • Proceedings of the Korea Water Resources Association Conference
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    • 2018.05a
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    • pp.463-463
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    • 2018
  • 우리나라의 공공용수역에서는 오염배출규제 및 하수도 정비에 의한 점오염원 부하량의 삭감에 의해 수질개선이 진행되어 왔다. 그러나, 비점오염원부하는 상대적으로 증가하는 경향에 있음에도 불구하고 그것을 실증하기 위한 강우시의 오염부하유출의 관측은 충분히 실시되지 않고 있다. 본 연구에서는 영주댐 유입하천을 대상으로 강우시 유입 오염부하량 파악 및 수질변동모의 예측을 위한 기초자료 획득을 위한 강우시 유입부하량 특성 및 수질영향이 분석되었다. 영주댐의 조사지점은 석표교, 멀내교의 총 2개 지점으로 본류인 내성천, 지류인 토일천에 각각 1곳씩 선정하였다. 유입수 샘플링은 자동모니터링 장치를 설치하여 채수하였고, 유랑조사는 교각에 설치된 자동수위측정기를 이용하여 측정하였다. 조사기간은 누적 강우량 133mm가 내린 2017년 7월 2일부터 5일간 실시하였다. 수질 시료 분석결과, 비강우시대비 COD 및 영양염류 부하량이 큰 폭으로 증가하는 것으로 나타났다. 토일천에서 채수된 시료의 경우 T-P는 비강우시 유입농도보다 최대 60배 높고, T-N은 비강우시에 비해 약 2.3배 높은 것으로 분석되었다. 강우유출 발생 시의 수질은 비강우시의 수질보다 COD 및 영양염류 부하량이 큰 폭으로 증가하였다. 비 강우시 유입되는 영양염류농도에 비해 강우시에는 강우강도에 비례하여 높은 농도의 인과 질소성분이 유입되고 있었고, 댐 저수량의 많은 부분이 강우시의 유입수량으로 채워지는 점을 고려할 때, 강우시 유입 수질이 댐 저수지 수질변화에 큰 영향을 주고 있을 것으로 판단된다. 영주댐 유역의 강우유출 특성은 강우유출이 시작 된 후, 수 시간 이내에 오염물질 농도가 급격히 증가하였고 유량의 증감속도와 유출량은 비례하였다. COD, 질소 계열 및 인 계열 물질의 유량과 비례한 증감을 확인하였다. 이를 통해 강우시 질소와 인의 유출이 강우량과 영향이 있음을 알 수 있었으나, 계절적인 유출 특성의 유무를 무시 할 수 없기 때문에 이에 대한 보다 상세한 조사 및 검토가 필요할 것으로 사료된다.

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