• 한국대기환경학회:학술대회논문집
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• 한국대기환경학회 2004년도 추계학술대회 논문집
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• pp.322-323
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• 2004

• Bulletin of the Korean Chemical Society
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• 제31권9호
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• pp.2717-2720
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• 2010

• 한국지리정보학회지
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• 제8권2호
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• pp.175-185
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• 2005

과거 우리는 경제성장을 위해 집약적으로 도시를 개발해 왔고 이러한 개발정책이 자연생태계에 부정적인 영향을 미쳐왔던 것은 간과할 수 없는 사실이다. 본 연구에서는 이러한 부정적인 영향의 평가를 위해 대구광역도시권을 대상으로 GIS 기법과 경관지수를 이용하여 도시성장에 따른 토지이용과 경관을 구성하는 요소들 상호간의 시 공간적 패턴을 분석하였다. 분석결과 주변지역으로 도시기능의 전이에 따라 도시는 $193.4km^2$가 확산되었으며, 산림은 다른 토지피복패턴으로 $455.6km^2$가 잠식된 것으로 나타났다. 이러한 변화의 과정에서 가장 큰 비중을 차지한 것은 상대적으로 개발여건이 양호한 농경지의 변화임을 알 수 있었다. 또한 산림은 구조적으로 파편화되고 형태는 복잡해졌을 뿐만 아니라 인접패치의 패턴도 다양해진 것으로 나타났다. 이러한 변화는 산림에 대한 외부간섭 또한 증대시켰을 것으로 생각되며, 아울러 생물종의 서식처가 되는 핵심지역을 감소시켜, 그 건전성을 저하시킬 가능성이 있는 것으로 판단된다. 이러한 연구결과는 향후 더욱 광역화되어지는 도시의 개발이 주위 환경구조에 미치는 영향과 상호관계성을 평가하고, 경관생태학적 원리를 고려한 광역도시계획수립의 기초자료로 활용 가능할 것이다.

• 대한토목학회논문집
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• 제32권6D호
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• pp.565-569
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• 2012

본 연구는 부산, 대구, 광주, 대전 등 4개 대도시권역을 대상으로 대중교통서비스가 열악한 대중교통사각지역을 선정한 후 이들 지역간을 운행하는 새로운 급행대중교통수단 도입 시 기성 시가지내 통행자들과 수단선택 행태가 어떻게 다른지를 분석하기위해 SP 조사(stated preference survey)를 통한 수단선택 행태변화에 대해 네스티드 로짓모형을 구축하여 분석하였다. 연구결과 대중교통사각지대는 잠재 대중교통수요가 많아 기성시가지에 비해 자가용통행으로부터 새로운 대중교통수단으로 전환하는 통행전환 비율이 매우 높은 것으로 분석되었다. 이러한 연구결과는 향후 대도시권 외곽 순환도로 혹은 외곽지역에서 도심지역으로 연결되는 간선도로를 활용한 새로운 급행 대중교통체계 도입시 수요변화 평가와 외곽지역의 대중교통 잠재수요 분석에도 활용될 수 있을 것으로 판단된다.

• 한국대기환경학회지
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• 제15권4호
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• pp.429-439
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• 1999

In order to assess the chronic impact of tropospheric ozone on vegetation in the Seoul metropolitan area, it is necessary to quantify ozone exposure. Two ozone indices commonly used to relate ozone exposure to injury of vegetation were calculated. SUM06(SUM of hourly concentrations at or above 0.06 ppm) and AOT40(Accumulated exposure Over a Threshold of 40 ppb) which are widely used as ozone indices in the US and Europe were calculated based on hourly ozone concentrations in 5 areas of Seoul and 5 cities of Kyunggido during 1990~1997. Most SUM06 levels were 1~5ppm.hr, however several areas in Northern and Eastern Seoul reached about 5~7 ppm.hr in 1996~1997. AOT40 values were as high as 17~24 ppm.hr. Although measured SUM06 levels would not be expected to significantly impact vegetation, the overall ozone index, as well as annual average, 95th, and 99th percentile have increased continuously over the last 8 years. Often, ozone concentrations are lower in cities where there is a significant NOx concentration, than in outlying rural agricultural areas where NOx scrubbing is not as important. Concentrations greater than 40 ppb, which can cause chronic ozone toxicity to vegetation, were found mostly in the summer and constitutued about 5~15% of total hourly ozone cocentrations.

• 보건행정학회지
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• 제14권1호
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• pp.24-43
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• 2004

Although alcohol misuse contributes substantially to mortality from diseases, injuries and adverse effects, a few attempts have been made to figure out size of adverse consequences attributable to alcohol in Korea. This study was conducted to describe trends of estimated deaths attributable to alcohol in Korea. Estimations were made by employing Korean alcohol aetiological fraction(AEF) into deaths from alcohol-related diseases, injuries, and adverse effects from year of 1995 through 2000. Korean AEF was derived from previous studies on AEF applied to USA and Canada (Schultz et al.,1991; English et al., 1995) with reflecting peculiar drinking patterns in Korea. An average number of deaths attributable to alcohol was 21,123, accounting for 8.76% of all deaths reported to National Statistical Office during the period. Death rates attributable to alcohol tended to decrease from year of 1995 to 1997 and then increased with peak at year of 1999. Sex-age standardized alcohol attributable death rates varied among areas, with those of metropolitan areas being lower than those of non metropolitan areas. Years of potential life lost (YPLL) were estimated to reflect qualitative aspect of deaths attributable to alcohol. Similar change patterns during the year were observed between number of deaths and YPLL. Average YPLL of men was longer than that of women by about 4 years. Some implications for future study have been discussed.

• 한국주거학회논문집
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• 제24권3호
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• pp.9-18
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• 2013

This paper aims to investigate the design characteristics of a single housing block which is increasing in urban areas. For the analysis, all cases of single block housing in Daejeon metropolitan city were gathered into a database. Main concerns were on the location and the physical characteristics. The results of this study were as follows; 1) single block housing has been increasing both in the new developed areas and the existing urban areas 2) their location has shifted from residential districts to semi-residential and commercial districts. For this reason, the size and density has been increasing 3) the slab block with the hall type and the exterior corridor type were general in residential districts, diverse ones, however, including the point tower type were increasing with unusual circulation types such as central corridor, central core, double corridor, and mixed type in semi-residential and commercial districts 4) there were 5 types of access systems, and especially the street access and the piloti access were increasing, which were related with the high density.

• 한국치위생학회지
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• 제23권4호
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• pp.235-243
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• 2023

Objectives: This study compared the number of graduates in each region for the past 6 years and the number of dental hygienists working in dental clinics by region to evaluate the trend of dental hygienists moving to work areas after graduation. Methods: Health care big data open system_medical manpower statistics, resident population and household status data by year, and education statistics service were used to calculate the number of dentists and dental hygienists, admission status by region, number of dental hygienists per 100,000 population, number of dental hygienists per number of dentists, and distribution of dental hygienists by region. Results: Although the number of active dental hygienists increased in the metropolitan area, the ratio of dental hygienists to dentists did not improve significantly. In addition, the number of students enrolled in provincial universities decreased, and there were fewer active dental hygienists than graduates in provincial areas. Conclusions: Although the number of active dental hygienists increased due to increase in the number of dental hygiene departments, it was found that rural areas did not have a significant impact on the availability of dental hygienists as the graduates moved to the metropolitan area.

• Journal of Information Technology Applications and Management
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• 제24권4호
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• pp.187-196
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• 2017

It is urgent to prepare countermeasures for traffic congestion problems of Korea's metropolitan area where central functions such as economic, social, cultural, and education are excessively concentrated. Most users of public transportation in metropolitan areas including Seoul use the traffic cards. If various information is extracted from traffic big data produced by the traffic cards, they can provide basic data for transport policies, land usages, or facility plans. Therefore, in this study, we extract valuable information such as the subway passengers' frequent travel patterns from the big traffic data provided by the Seoul Metropolitan Government Big Data Campus. For this, we use a Hadoop (High-Availability Distributed Object-Oriented Platform) to preprocess the big data and store it into a Mongo database in order to analyze it by a sequential pattern data mining technique. Since we analysis the actual big data, that is, the traffic cards' data provided by the Seoul Metropolitan Government Big Data Campus, the analyzed results can be used as an important referenced data when the Seoul government makes a plan about the metropolitan traffic policies.

• Parasites, Hosts and Diseases
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• 제57권2호
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• pp.179-184
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• 2019

Sparganosis is a parasitic infestation caused by sparganum, a plerocercoid tapeworm larva of the genus Spirometra. Since the first case of human sparganosis reported in 1908, sparganosis has been a global disease, and is common in China, Japan, and Southeast Asian countries. Consumption of raw snakes, frogs, fish, or drinking contaminated beverages are sources of human infections. Human sparganosis usually manifests in subcutaneous fat in areas such as the abdomen, genitourinary tract, and limbs. Breast sparganosis cases are rare, representing less than 2% of total cases of human infections. Complete surgical extraction of the sparganum is the treatment of choice. Because of the rarity of the disease, clinical suspicion is vital to reach the diagnosis of breast sparganosis. Here we report 2 rare cases of breast sparganosis presenting with a painless breast lump, both treated with surgical excision and sparganum extraction.