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도시분뇨잔사(都市糞尿殘渣)를 단결제로 한 고형복합비료(固形複合肥料) 효과 시험
이원규,주진순,이천용 한국임학회 1984 한국산림과학회지 Vol.65 No.1
都市에서 收去한 糞尿를 衛生處理하고 남은 찌거기(人糞 Sludge)를 20% 添加하여 만든 固形複合肥料와 現行山林用 固形複合肥料의 肥效를 比較하여 本 試驗을 實施하였던 바 그 結果는 다음과 같다. 1) 樹高 및 根元徑은 現行肥料가 葉과 뿌리의 生重量은 糞尿殘渣添加肥料가 좋은 傾向을 보였다. 2) 土壤內 養料含量은 糞尿殘渣添加肥料가 많았는데 肥料內 養分溶解度가 現行肥料와 單肥의 中間的 性質을 갖고 있기 때문인 것 같다. 3) 經濟的인 面에서 現行肥料보다 8%의 製造原價 節減效果가 있었다. 4) 따라서 두 固型肥料의 肥效와 經濟性을 考慮하여 보면 代替해도 無妨하며 오히려 모든 固型肥料에 糞尿殘渣를 添加하면 産業廢葉物로 處理가 어렵고 公害가 될 수 있는 糞尿殘渣를 效率的으로 處理할 수 있겠다.
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이원규,이은진,이상국 부산연구원 2019 연구보고서 정책연구 Vol.2019 No.0
This study intends to analyze basic data about Busan’s shared transportation and suggest measures to stimulate the city’s shared transportation based on the analysis of domestic and overseas cases of shared transportation, the current conditions of shared transportation in Busan and opinions of citizens and experts. In Busan, car sharing services are provided by two private companies―Socar and Greencar. Socar has 282 agencies with a total of 1,032 cars; and Greencar has 159 agencies with a total of 416 cars. As for electric kickboards, Wind runs about 40 kickboards in Nam-gu, Yeonje-gu, Suyeong-gu, and Busanjin-gu. With regards to shared parking lots, Yeonje-gu and Geumjeong-gu signed business agreements with Modu Company Inc. for a shared parking lot project, and Dong-gu and Nam-gu are preparing to sign such business agreements. On the other hand, a public bike system was operated in and around the new town in Haeundae only during the period from October 2010 to December 2015 by U-Bike and the period from late 2017 to October 2018 by ofo, a bike sharing company. A survey about shared transportation was conducted on citizens and experts, and it was found that the shared transportation services with the highest priority were “shared parking lot,” “car sharing services,” “ridesharing services,” “shared bikes” and “personal mobility” in descending order. This study suggests the following measures to stimulate shared transportation in Busan. First, it is desirable to phase in shared transportation services in Busan because there are some shared transportation services being operated in the city. Second, shared transportation services need to be managed by the transportation demand management team, the parking planning team, the taxi administration team and the Transportation Information Service Center while such services are phased in; and the sharing economy team, the smart city promotion department and Busan Metropolitan Police Agency need to organically discuss shared transportation services and operate a system to support them. Third, a “Busan shared transportation committee” needs to be operated to make decisions about the introduction of shared transportation services and policies to support them. Fourth, data about private shared transportation services need to be collected by the Transportation Information Service Center to make public and provide such data in various forms of public data. Last, civic groups need be allowed to attend meetings of the shared transportation service committee, and they need to organize events, perform monitoring activities and protect users’ rights. For the establishment of Busan’s Mobility-as-a-Service (MaaS) platform: (1) the introduction of community currency and the application of a block-chain system are necessary; (2) the Public-Social-Private-Platform-Partnership (PSPPP) can be examined as a short-term form of the MaaS operation and the public -social-private-platform-BCN (Block Chain Network) partnership (PSPPBP) as a mid- and long-term form of the MaaS operation; and (3) users and user apps, reservation and payment services, payment platforms and block chain networks (BCNs) are necessary.
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이원규,정헌영 한국자료분석학회 2008 Journal of the Korean Data Analysis Society Vol.10 No.2
It is necessary to improve urban bus information service for user-focused environment because urban bus information is an important factor over passenger's travel chain. This study analyzed user's evaluation model for the level of service from urban bus information using GAP analysis, IPA, and structural equation model. GAP analysis utilized twenty-two measures for urban bus information, and resulted into the significant differences for two measures such as the scheduled information of bus operation, the actual information of urban bus information. IPA analysis using individual measures and factor analysis showed that there is a need to improve the BIS(bus information system) information including dynamic traffic, bus-stop and bus use, fixed facilities at bus-stop. The estimation result for structural equation model suggested that satisfaction for bus information service is affecting overall satisfaction on urban bus information more significantly than the satisfaction of information use. The lower overall satisfaction on urban bus information, the higher the need for overall satisfaction. 시내버스 정보는 시내버스 이용자의 통행 전반에 있어서 중요한 요소로 이용자 중심으로 정보 서비스를 개선할 필요가 있다. 본 연구는 GAP, IPA, 구조방정식을 이용한 시내버스 정보의 서비스 수준에 대한 이용자 평가모델을 개발하였다. 시내버스정보 22개 서비스 항목에 대한 GAP 구축에서는 GAP이 높은 항목으로 정보화 등을 통한 실제 시내버스 운행에 관련된 정보와 시내버스 운행 기본 정보가 포함되어 있으며, 개별 서비스 항목과 인자분석에 의한 IPA 결과는 우선시정이 필요한 항목으로 버스정보시스템(BIS) 제공 정보 등 동적 교통정보 제공 항목과 정류장 및 시내버스이용 정보와 정류장 고정 시설물 이용 가능 정보가 우선시정이 필요한 것으로 분석되었다. 구조방정식에 의한 시내버스정보 서비스 평가모델은 적합도가 좋은 것으로 나타났으며, 시내버스 정보서비스 전체 만족도에는 시내버스 정보이용 만족보다는 시내버스 정보서비스 만족이 상대적으로 영향을 많이 미치는 것으로 나타났다. 그리고 시내버스 정보서비스 전체 만족도가 낮을수록, 시내버스 정보 필요성에 대해 높게 요구하는 것으로 나타났다.
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