• 농촌의학ㆍ지역보건
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• 제22권2호
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• pp.147-158
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• 1997

The purpose of this study is to develop the nutritional survey indices such as the Knowledge(K), Knowledge Practice(KP), Attitude(A), and Food Practice(FP) as effective materials of the nutrition education and evaluation in spreading community nutrition service. These materials were applied to two groups(126 rural people and 117 urban people) from August 1st to September 10th, 1996. We investigated actual conditions of objects about K, KP, A, FP by interviews. Also we measured serum cholesterol levels of all objects by Accutelend G.C. The results of the research turned out as follows; 1). In the comparison of the nutritional Knowledge scores, the average score of urban people was much higher($84.2{\pm}2.4$) than rural people($42.1{\pm}3.1$). 2). In the scores of the Knowledge Practice, urban people had also significantly higher score than rural people. But only 19.5% of urban people had high scores between 80 and 100, and 42.4% of urban people and 87.3% of rural people had scores between 0 and 40. 3). The average scores of the Attitude were not significantly different between urban and rural people. The average scores of the Food Practice were not significantly different between urban and rural people. 4). In cholesterol measurements, only three of 243 people were in the abnormal high levels(more than 250mg/dl), and they are all over 60 years old, and two of them were rural people. 5). The people who were younger in age, higher in educational level and spent more money for foods had higher scores on K, KP, A and FP. And the people who were younger in age in age and more money spent for foods had higher scores on FP. Regression analysis showed that the serum cholesterol levels were not associated with the scores of FP.

• 한국지역지리학회지
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• 제12권2호
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• pp.305-322
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• 2006

오늘날 세계주의의 시대에 점차 많은 도시들은 재스케일화의 전략을 통해 국가적 차원에서 이탈된 광역생산네트워크를 구축하고 있을 뿐만 아니라 도시 내의 국지적 지리를 보다 효율적으로 통제하기 위한 도시 거버넌스를 재정비하고 있다. 이러한 맥락에서 도시재개발은 도시정부가 통치제도를 강화함으로써 세계화에서 비롯된 노후주택지구, 노동계급의 게토, 우범지역 등과 같은 위협적인 공간변수들을 제거하고 이 공간들로부터 교환가치를 증식, 전유하는 세계적 전략으로 이해된다. 본 논문은 이러한 실천을 '세계도시화(glurbanization)'의 한 과정으로 보고, 특히 세 가지 차원에 주목한다: 첫째는 도시정부가 빈곤을 '고안'해내기 위하여 도시재개발의 담론을 사용하는 방식, 둘째는 도시정부가 그 담론을 제도화하여 구체적인 재개발 프로젝트를 구현하는 방식, 셋째는 제도화된 도시기구들이 재개발 담론 및 담론적 실천을 그들의 목적에 맞게 전유하는 방식을 살펴본다. 본 연구는, 경험적으로 캘리포니아 재개발법과 로스앤젤레스 도시재개발국에 초점을 두어, 이들이 어떻게 소위 '황폐구역'으로 정의된 도시공간에서 토지수용권과 증분세금수입이라는 도구를 통해 어떻게 가치를 짜내는지를 분석한다. 방법론으로는 담론분석과 제도민족지법을 사용한다. 결론적으로, 본 논문은 황폐구역으로 낙인찍힌 도시 공간들이 '공공의 보건과 안전'이라는 담론을 통해 재개발기구의 덫에 가두어지고 있으며. 이들 빈곤지역으로부터 증식, 추출된 교환가치는 외부 투자자들, 개발업자들 및 재개발기구 그 자체의 자원으로 전유되고 있다는 점을 비판한다.

• Smart Structures and Systems
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• 제15권2호
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• pp.489-503
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• 2015

Response estimation at unmeasured locations using the limited number of measurements is an attractive topic in the field of structural health monitoring (SHM). Because of increasing complexity and size of civil engineering structures, measuring all structural responses from the entire body is intractable for the SHM purpose; the response estimation can be an effective and practical alternative. This paper investigates a response estimation technique based on the Kalman state estimator to combine multi-sensor data under non-zero mean input excitations. The Kalman state estimator, constructed based on the finite element (FE) model of a structure, can efficiently fuse different types of data of acceleration, strain, and tilt responses, minimizing the intrinsic measurement noise. This study focuses on the effects of (a) FE model error and (b) combinations of multi-sensor data on the estimation accuracy in the case of non-zero mean input excitations. The FE model error is purposefully introduced for more realistic performance evaluation of the response estimation using the Kalman state estimator. In addition, four types of measurement combinations are explored in the response estimation: strain only, acceleration only, acceleration and strain, and acceleration and tilt. The performance of the response estimation approach is verified by numerical and experimental tests on a simply-supported beam, showing that it can successfully estimate strain responses at unmeasured locations with the highest performance in the combination of acceleration and tilt.

• 한국조경학회지
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• 제34권6호
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• pp.39-53
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• 2007

Unlike conventional roof landscaping, where various kinds of plants and structures are employed, a grass roof is a roof on which herbaceous plants are grown in planting medium and which is not accessed or maintained, mainly because it doesn't have sufficient load capacity to support a regular roof garden. They are mostly built on existing roofs, whether flat slab or gabled. Planting on roofs has numerous advantages, such as creating a biotope, purifying urban air, adding moisture to the atmosphere, storing rain water, preventing flash floods, reducing energy use for heating and air conditioning, enhancing the urban landscape and providing relaxation to the city dwellers, not to mention the alleviation of global warming by absorbing $CO_2$. In addition to the general merits of roof planting, the grass roof has its own unique qualities. Only herbaceous species are planted on the roof, resulting in light weight which allows roofs of existing buildings to be planted without structural reinforcement. The species chosen are mostly short, tough perennials that don't need to be maintained. These conditions provide an ideal situation where massive planting can be done in urban areas where roofs are often the only and definitely the largest space available to be planted. If roofs are planted on a massive scale they can play a significant role in alleviating global warming, heat island effects and energy shortages. Despite the advantages of grass roofs, there are some problems. The most significant problem is the invasion of neighboring plants. They may be brought in with the planting medium, by birds or by wind. These plants have little aesthetic value comparing to the chosen species and are usually taller. Eventually they dominate and prevail over the original species. The intended planting design disappears and the roof comes to look wild. Since the primary value of a grass roof is ecological, a change in attitude towards what constitutes beauty on the roofscape is necessary. Instead of keeping the roof neat through constant maintenance, people must learn that the wild grass with bird's nests on their roof is more beautiful as it is.

• 자동차안전학회지
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• 제14권2호
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• pp.39-44
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• 2022

This paper presents LiDAR static obstacle map based vehicle position correction algorithm for urban autonomous driving. Real Time Kinematic (RTK) GPS is commonly used in highway automated vehicle systems. For urban automated vehicle systems, RTK GPS have some trouble in shaded area. Therefore, this paper represents a method to estimate the position of the host vehicle using AVM camera, front camera, LiDAR and low-cost GPS based on Extended Kalman Filter (EKF). Static obstacle map (STOM) is constructed only with static object based on Bayesian rule. To run the algorithm, HD map and Static obstacle reference map (STORM) must be prepared in advance. STORM is constructed by accumulating and voxelizing the static obstacle map (STOM). The algorithm consists of three main process. The first process is to acquire sensor data from low-cost GPS, AVM camera, front camera, and LiDAR. Second, low-cost GPS data is used to define initial point. Third, AVM camera, front camera, LiDAR point cloud matching to HD map and STORM is conducted using Normal Distribution Transformation (NDT) method. Third, position of the host vehicle position is corrected based on the Extended Kalman Filter (EKF).The proposed algorithm is implemented in the Linux Robot Operating System (ROS) environment and showed better performance than only lane-detection algorithm. It is expected to be more robust and accurate than raw lidar point cloud matching algorithm in autonomous driving.

• 한국실내디자인학회논문집
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• 제26권3호
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• pp.3-12
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• 2017

From the stages of formation, to the processes of change, the alleys with long history not only reflect on the trends of the area, but also have a historical and cultural value as a place where the local residents make living and socialize. However, due to the rapid growth of the city's civilization, and industrialization, there has been a great amount of loss in the roles of the rural areas while urban areas have been expanding over time. The rural areas including the old alleys have been neglected and fell far behind in the processes of growth overall, and therefore, it became harder to trace the old days as well as the old emotion that we used to see. Nowadays, there are various cases in terms of alley regeneration project as people are getting more interested in it. The alley regeneration projects can be divided into two different backgrounds; a part of urban regeneration project by the government and local organizations and the other developed by the trends. This research, with successful case studies, is for analyzing the direction of the ultimate goal and the identity that only the alleys have. As the alleys contain history, tradition and culture of the community, we need to not only preserve but also maintain all of these since it will affect the goal and the establishment of identity of the alley regeneration projects as a significant factor. In addition, in order to attract visitors from diverse cultures, providing cultural or artistic experiences and aesthetic landscapes will be importantly considered as an additional factor for the research. In other words, through this research, I would like to demonstrate that it is the most important for the alleys fell far behind to establish its identity for continuous successful eyre generation projects, which are not temporary.

• 한국재난관리표준학회지
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• 제4권2호
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• pp.41-48
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• 2011

보행공간은 작게는 보행량을 포함하는 공간사용의 정도에 영향을 미치거나 크게는 지역경제의 활성화에 영향을 미치며, 더 크게는 친환경, 친인간적인 도시로서의 삶의 질을 평가하는 지표중의 하나이다. 또한 최근 도심부 보행관련 정책은 선적인 가로환경 개선사업에서 발전된 보행자우선지구로의 전환이 대두되고 있어 특정 보행공간보다는 전체적인 보행공간체계에 대한 고려가 중요시되고 있다. 본 연구에서는 도시민을 위한 공간계획의 일환으로 시작된 국내 보행 전용 공간의 물리적 특성과 실제 이용자의 이용 형태에 대한 연구를 통해 국내에 조성된 보행 전용 공간의 특성을 규명하고자 함에 목적을 두고 사례분석을 통한 연구를 진행하였다. 사례연구는 지역적으로는 서울시에 조성된 차없는 거리 중 명동과 관철동에 조성된 시간제 통제방식의 보행자 전용공간을 선택하였으며 이에 대한 현장조사와 설문조사를 병행하여 분석하였다. 본 연구의 활용 방안으로는 보행공간 관련 사업 시 특정가로에 치중된 사업이 아닌 지역 전체 보행공간체계의 공간적 가로특성을 고려할 수 있으며, 현행 법제도에서 모호하게 제시된 보행자전용도로 위치 및 횡단보도 위치의 당위성을 제시할 수 있다. 또한, 계획단계에서 보행량 예측에 따른 적절한 계획수립방안을 모색할 수 있다.

• Journal of the Korean Institute of Landscape Architecture International Edition
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• 제1호
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• pp.75-83
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• 2001

Residents of urban area like to be near rural animals during their daily life, so it is important conserve the suburban Yato landscape in Japan. This study targets the species of frogs that are commonly found in Yato paddies. It is necessary to various frogs inhabiting in Yato, because frogs are popular among Japanese, who as children enjoy capturing tadpoles and frogs. Its purpose is to clarify how that composition of frog species changes when the functionality of a frog habitat is diminished by urbanization. The survey, conducted in the Eastern Kanagawa area in central Japan, determined the distribution of each species of frog in grid cells measuring 0.5-$\textrm{km}^2$. It hsows wide distributing species (Hyla japonica; they always inhabit in all paddies), the middle range distributing species (Rhacophorus schlegelii and Rana porosa p.), the limited range distributing species (R. rugosa; they are most critical species, sine they are recognized only two cells), and so on. Correspondence analysis based on the frog species composition in each cell was performed to ascertain the adaptability of each species to various paddy field conditions. The results allowed us to classify cells into four groups according to the composition of the inhabiting species. And we recognized that the process by which frogs disappear occurs in reaction to either of two patterns of change. As paddy fields are improved by farmland consolidation, R. rugosa, R. ornativentris, R. japonica, and Bufo. japonica f. decline rapidly. In plateau areas, a smore andmore paddies are converted into strong, well-drained fields, only H. japonica and R. porosa p. remain. But in hilly areasd, the species composition becomes only H. japonica and R. schlegelii. Finally, we discuss the concept of ecological urban design in the context of the conservation of frog species in Yato paddies.

• 한국동물생명공학회지
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• 제38권4호
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• pp.215-224
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• 2023

Background: Reproductive management practices play crucial roles to maximize the reproductive performance of cows, and thus contribute to farm profitability. We aimed to assess the reproductive management of cows currently practiced in the dairy farms in an urban farming system. Methods: A total of 62 dairy farms were randomly selected considering all size of farms such as small (1-5 cattle), medium (6-20 cattle) and large farms (> 20 cattle) from selected areas of Dhaka city in Bangladesh. The reproductive management-related parameters viz. estrus detection, breeding method, pregnancy diagnosis, dry cow and parturition management, vaccination and treatment of reproductive problems etc. were obtained in a pre-defined questionnaire during the farm visit. Results: The visual observation method was only used (100.0%; 62/62) for estrus detection irrespective of size of the farms; while farmers observed cows for estrus 4-5 times a day, but only for 20-60 seconds each time. Regardless of farm size, 89.0% (55/62) farms used artificial insemination (AI) for breeding the cows. Intriguingly, all farms (100.0%) routinely checked the cows for pregnancy at 35-40 days post-breeding using rectal palpation technique by registered veterinarian. However, only 6.5% (4/62) farms practiced dry cow management. Notably, all farms (100.0%) provided nutritional supplements (Vit D, Ca and P) during late gestation. However, proper hygiene and cleanliness during parturition was not practiced in 77.4% (48/62) farms; even though 96.7% (60/62) farms treated cows by registered veterinarian for parturition-related problems. Conclusions: While farmers used AI service for breeding and timely check their cows for pregnancy; however, they need to increase observation time (30 minutes/ observation, twice in a day: early morning and early night) for estrus detection, consider dry cow management and ensure hygienic parturition for maximizing production.

• 한국환경복원기술학회지
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• 제24권1호
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• pp.69-80
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• 2021

The new town in Korea, developed as a large-scale housing plan, has created urban ecological corridors to provide habitat and movement routes to wildlife and to promote natural ecological flow. This study aimed to investigate the use of wildlife in 10 ecological corridors in Gwanggyo New Town through camera trap technology and confirm effectiveness by identifying environmental factors affecting the use of wildlife's urban ecological corridors. Our researchers installed 20 unmanned sensor cameras at each the entrance and exit of the ecological corridors, and monitored urban wildlife for 10 weeks. According to the monioring results, the main species in Gwanggyo New Town were identified not only raccons, cats, water deer, korean hare and avain but also magpies, dove, eurasian tree sparrow, ring-necked pheasant, and eurasian jay. The number of uses ecological corridors of urban residents was 801(13.49%), as high as that of urban wildlife (1,140, 19.20%), which was judged to have disturbed the use of ecological corridors by wildlife. However, most dominant species of urban wildlife are nocturnal so that, it was judged that they share home range with urban residents at a time interval. In addition, according to the correlation analysis results between the mammal using rate of the urban ecological corridors and environmental factors(ecological corridor-specific length, ecological corridor-specific width, cover degree, shielding degree, connected green area, separation of movement routes, and presence of streetlights), environmental factors were not statistically significant. However, the more the area of green space connected to ecological corridors, the more increasing the mammal using rate of ecological corridor(r=0.71, p<0.05). Therefore, the area of green space connected to the ecological corridors that is associated with rate of wildlife using corridors should be considered as a priority when developing an urban ecological corridors. In the future, this study will extend the observation period of the ecological corridors and continuously accumulate data by adding the number of observation cameras. Furthermore, it is expected that the results of this study can be used as basic data for the standards for urban ecological corridors installation.