• 보건행정학회지
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• 제27권4호
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• pp.315-323
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• 2017

Background: This study was purposed to analyze the effect of spatial accessibility to the psychiatry department in general hospital on the outpatient visit of mental patients. Methods: Data was provided from the Statistics Korea and Statistical Geographic Information Service, National Health Insurance Service, Health Insurance Review and Assessment Service, and Korea Transport Institute in 2015. The study regions were 103 administrative regions such as Si and Gu. The 103 regions had at least one general hospitals with a psychiatry department. The number of outpatient visit of mental patients in regions was used as the dependent variable. Spatial accessibility to mental general hospital was used as the independent variable. Control variables included such as demographic, economic, and health medical factors. This study used network analysis and multi-variate regression analysis. Network analysis by ArcGIS ver. 10.0 (ESRI, Redlands, CA, USA) was used to evaluate the average travel time and travel distance in Korea. Multi-variate regression analysis was conducted by SAS ver. 9.4 (SAS Institute Inc., Cary, NC, USA). Results: Travel distance and time had significant effects on the number of outpatient visits in mental patients in general hospital. Average travel time and travel distance had negative effects on the number of visits. Variables such as (number of total population, percentage of aged population over 65, and number of mental general hospital) had significant effects on the number of visit in mental patients. Conclusion: Health policy makers will need to consider the spatial accessibility to the mental healthcare organization in conducting regional health planning.

• ALGAE
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• 제20권2호
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• pp.151-155
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• 2005

To obtain basic data, we investigated the effect of blade length on transplants, the transplanting method of Laminaria japonica for creating L. japonica resources and the number of transplanting plates with surviving L. japonica. The survival rate of L. japonica, blade length of transplants and drag force of transplanting plates were also researched. The number of transplanting plates with surviving L. japonica, the survival rate and blade length of 20 cm long-initial transplants were greater than those of 1.5, 5 and 10 cm long-initial transplants in an outdoor aquarium. At the depth of 4 m in the coastal waters, the number of transplanting plates with surviving transplants, the survival rate and the blade length of 30 cm long-initial transplants were higher than those of 10 and 20 cm longinitial transplants. The drag force is calculated by cording up sporophytes of L. japonica into the transplanting plates under water. The drag force in the case of a 2.18 kg-weight transplanting plate and in a current speed of 0.5 m${\cdot}s^{-1}$ for considering stability of the plate was 631.50 g to a concrete substratum on the seabed, 703.92 g to a shingle substratum, 788.00 g to a sand substratum, and 1018.30 g to a silt substratum. If we consider the stability and economic efficiency of the transplanting plate, the proper weight of the plate per one individual of 18.11 cm in blade width and 190.20 cm in total blade length is regarded as 508.2 g when it is calculated with the concrete substratum that shows the lowest drag force.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2011년도 춘계학술대회 초록집
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• pp.189.1-189.1
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• 2011

Global warming effect was intensified due to rapid growth of fossil fuel consumption caused by urbanization and industrialization. Various efforts was being done to solve the problems leading to anomaly climate such as flood, downpour, heavy snow. As a results of international efforts for management of global warming, Kyoto Protocol, which was passed in Kyoto, Japan in 1997, designated $CO_2$, $CH_4$, $N_2O$, HFCs, PFCs, $SF_6$ as a global warming gases. And IPCC(Intergovernmental Panel on Climate Change) suggested IPCC guideline for systematic establishment of national greenhouse gas inventory. Among five categories in IPCC guideline, the representative emission source of waste category is SWDS(solid waste disposal site). The concentrative research should progress for effective management of greenhouse gas related with waste. In this study, Tier1 and Tier2 methods which was suggested by 2006 IPCC(Intergovernmental Panel on Climate Change) guideline, was used to predict methane generation from C sanitary landfill located in Chungju area. To predict methane generation from C sanitary landfill, all factors were defaults values that were provided by 2006 IPCC guideline and Korea emission factors for Tier1 and Tier2 method. And economics of generated methane was estimated. From the predicted result using IPCC guideline, the methane generation was persistingly increased over a 9-year period(2000 ~ 2008). Aggregated amount of methane generation was about 3,017ton and 3,170ton predicted by Tier1 and Tier2, respectively. From the results of estimated economic value gained by generated methane from the C sanitary landfill for ten years from now(2010 ~ 2020), the profit was about 2.39 ~ 2.76 hundred million won.

• 한국콘텐츠학회논문지
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• 제17권11호
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• pp.39-49
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• 2017

새로운 경제패러다임인 4차 산업혁명으로의 전환에서 개인의 창의성을 기반으로 하는 산업 또는 그러한 직무에 종사하는 인적 계층인 창의인력은 중요한 요소가 된다. 해외 연구에서 볼 수 있듯이 창의인력은 '장소의 질', 대표적으로 어메니티를 거주지역 선택에서 중요한 요소로 고려한다. 이에 본 연구는 국내에서도 창의인력이 거주지를 선택함에 있어 도시 어메니티가 영향을 미치는지 생산직 인력과 비교하여 분석하였다. 첫째, 2014년 기준, 전체 창의인력의 수는 573만명(전체 종사자의 23.2%)이며, 절반 이상인 58.6%가 서울 경기에 집중되어 있다. 둘째, 창의인력의 초과거주비율(거주자수/일자리수)은 인구규모가 큰 대도시 지역에 집중 된 것으로 나타났다. 셋째, 창의인력의 거주지 선택은 생산직과 비교하여 교육과 같은 특정 도시 어메니티 요소에 큰 영향을 받는 것으로 나타났다. 이와 같은 분석결과를 통해 지역의 창의인력 확대방안 마련에 기초자료로 활용할 수 있을 것으로 기대된다.

• 한국지반환경공학회 논문집
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• 제19권10호
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• pp.5-11
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• 2018

PBD(Plastic Board Drain) 공법은 준설 매립에 효과적인 지반개량을 위한 다양한 공법 중 하나이며, 시공성 및 경제성이 우수해 연약지반개량에 많이 사용되고 있다. 그러나 PBD 공법은 장시간 소요에 의한 지반 투수성 감소 및 배수능 저하를 야기시키는 문제점을 지니고 있다. 이를 개선하기 위해 개발된 나노 코팅된 Plastic Drain Board(PDB)는 비금속성 전극재로 전기삼투공법의 전기력을 이용해 PDB 공법의 단점을 개선하기 위해 개발한 재료이다. 나노 코팅된 PDB를 적용하기 위한 다양한 연구가 수행되었으나 실내실험으로 제한되었을 뿐 현장실험은 수행되지 않았다. 이에 본 연구에서는 나노 코팅된 PDB의 현장 활용성을 확인하기 위해 실내모형실험과 현장실험을 수행하였다. 그 결과 일반 PDB에 비해 나노 코팅된 PDB의 지반개량효과가 크게 나타났다.

• 노동경제논집
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• 제25권2호
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• pp.1-32
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• 2002

본 연구에서는 경기변동에 따라 그리고 지역에 따라 달라지는 실업률에 임금이 얼마나 유연하게 반응하는가를 분석한다. 분석의 주된 결과는 다음과 같다. 첫째, 최근의 패널데이터에 근거한 많은 외국의 연구 결과와 마찬가지로 실질임금의 경기순응성(procyclicality)은 매우 크게 추정되었다. 실업률이 1퍼센티지 포인트 하락할 때 실질임금률은 약 3.25% 상승하는 것으로 나타났다. 또한 실질임금의 경기순응성은 여성보다는 남성에게 있어서 더 크게 나타났다. 둘째, Blanchflower and Oswald(1990, 1994, 1995)가 발견한 임금곡선(wage curve)이 우리나라에서도 존재하는 것으로 나타났다. 그러나 그 탄력성의 절대값은 0.1보다는 작게 나타났다. 또한 실질임금률과 지역실업률의 관계는 영구적인 부분(permanent component)에 있어서나 일시적인 부분(transitory element)에 있어서나 부(-)의 상관관계가 있는 것으로 나타났다. 셋째, 본 연구에서 가장 선호하는 모형인 지역실업률과 총실업률을 동시에 포함시킨 임금함수의 추정에서, 임금은 주로 총실업률에 의해 결정되며 지역 실업률의 효과는 미미한 것으로 나타났다. 이는 임금이 일차적으로는 지역노동시장 여건에 의해 결정된다는 Blanchflower and Oswald(1994)의 주장이 적어도 우리나라 노동시장에서는 성립하지 않음을 의미한다. 또한 우리나라에서는 총실업률이든 지역실업률이든 시간지연효과는 거의 없는 것으로 나타났다.

• 산경연구논집
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• 제8권5호
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• pp.77-85
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• 2017

Purpose - The purpose of this study is to investigate the variables that lead consumers to visit traditional markets and buy market goods. Thus, the current research examined the relationship between satisfaction and return intention as among the factors influencing loyalty. Research design, data, and methodology - This study was conducted to examine the effects of the perceived level of factors on loyalty and how it influenced consumers' visits to traditional markets in 125 adult adolescents and women living in Mok-po area. The results of the questionnaire were obtained. The statistical data of the questionnaire were verified by SPSS. Results - In this study, consumers' perception level of eight loyalty factors can be perceived by the traditional Korean market. The empirical analysis is summarized as follows. First, by selecting five representative variables influencing intention to return to traditional markets, Mok-po area consumers were affected by the intention to revisit according to the intensity of recognition level among these variables. Second, the higher the perceived level of product price, quality of access (accessibility) among the factors that consumers perceive as important factors in visiting traditional markets were heightened. Third, Mokpo residents are aware of the main important factors of visiting the market such as receiving a friendly atmosphere (image) about traditional market, market environment (hygiene and cleanliness), connection with the local economy, and customer service such as kindness, refund and return. These loyalty factors did not affect consumers' intention to revisit. In other words, image, environment, regional economic linkage, and these factors did not have a positive effect on revisit intention. Conclusions - The empirical analysis of this study suggests that factors that directly affect loyalty among the key factors that play a major role in visiting traditional markets should be identified and developed as loyalty factors. It is necessary to identify the key factors influencing the satisfaction and loyalty of traditional market users, and operate a system that systematically and comprehensively manages and evaluates them. In order to do this, the government, the local governments, and related organizations should regularly conduct loyalty and satisfaction surveys on visa recognition levels and establish strategies for dramatic improvement measures.

• 한국산학기술학회논문지
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• 제10권6호
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• pp.1275-1280
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• 2009

최근 교량설계에서 외부 프리스트레스를 도입한 장지간 및 효율적인 단면활용 등과 같은 연구가 활발하게 진행되고 있다. 강구조물에 프리스트레스를 도입하면 큰 하중에서 탄성변형의 극한값이 증가하게 되어, 강재량을 줄일 수 있고, 비용의 측면에서 경제성이 있는 것으로 평가 되었다. 이러한 이유 때문에 우리나라에서도 최근 가설교량 시공시 프리스트레스를 도입하여 응력보정 및 처짐보정이 가능하고, 비교적 작은 단면으로 장지간 교량을 시공할 수 있어 통수단면을 충분히 할 수 있는 여러 가지 공법이 개발되고 있다. 따라서 본 논문에서는 가설 강교량에 프리스트레스 도입방법 및 고강도 텐던의 배치에 따른 영향, 강판과 고강도 텐던의 복합구조에 대한 효과를 기존 가설공법과 비교하여 검증 하고자 한다.

• 대한지역사회영양학회지
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• 제8권5호
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• pp.708-715
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• 2003

The purpose of this study was to investigate the status of recognition and intake of Saeng shik among housewives in Seoul, Busan, Daegu, Kwangju and Daejeon during February, 2002. Saeng shik is an uncooked freeze dried powdered food made from grains and vegetables. We interviewed 800 housewives, aged 30 to 49 years, living in urban areas. The survey was conducted using individual interviews on demographic characteristcs, status of recognition of Saeng shik, and the intake of Saeng shik. The data was analyzed using a SPSS program. The results were summarized as follows: Forty percentage of the subjects were well acquainted with Saeng shik. More than 60% of the subjects understood that Saeng shik is ‘the thing of grains and vegetables in the form of freeze-dried powder without heating process’. Saeng shik was taken by 16.9% of subjects. There was a significant regional and economic level difference in Saeng shik intake (p<0.05). Among the reasons given for Saeng shik intake, meal substitution ranked the highest. Other reasons were prevention of adult diseases, or it being a low calorie food. The survey questioned which the subjects considered before buying Saeng shik, taste, effect, constitution, sanitation and safety, satiety. ‘Taste’ ranked the highest. Among the subject who had experienced taking Saeng shik, 35.6% answered that they would continue taking Saeng shit. The reasons given for stopping taking Saeng shik included its high cost and taste. The subjects recognized it not only as a meal substitute, but also as a nutrient supplement. Based on these results on urban housewives' status of recognition of Saeng shik and their intake of it, more research is needed to improve Saeng shik.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2008년도 춘계 학술발표회 제20권1호
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• pp.465-468
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• 2008

본 연구는 영, 호남 지역의 레미콘 공장에서 현재 사용하고 있는 잔골재의 특성을 분석하고, 혼합사용 시 잔골재율 조정에 따른 콘크리트의 특성실험을 통하여 혼합사용 시 최적조건을 분석한 것으로 그 결과를 요약하면 다음과 같다. 영, 호남에서 사용하는 골재 종류별 물성은 조립률 및 0.08mm체 통과량을 제외하고 모두 KS F 2526 및 KS F 2527의 규정에 적합한 것으로 나타났는데, 각 공장에서는 단독사용이 부적합한 골재를 2종 이상 적절한 비율로 혼합사용하고, KS규정에 적합하게 품질을 관리하고 있었다. 영, 호남 각 공장에서 단위용적질량법에 의해 산출한 잔골재율로 조정한 콘크리트의 배합은 기존의 출하배합보다 높은 유동성을 보이는 것으로 나타났는데, 이는 잔골재율 약 2% 저감에 따라 잔골재의 표면적 감소 및 공극감소에 따른 시멘트 페이스트의 유동성에 미치는 잉여수량의 상대적 증가에 기인한 것으로 분석된다. 따라서 최적 잔골재율을 적용함으로써 단위수량 감소로 인한 경제적인 콘크리트 배합과 콘크리트의 내구성을 증진시키는 효과가 있을 것이라 사료된다.