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김지유,장영호,김주연 한국공간디자인학회 2022 한국공간디자인학회논문집 Vol.17 No.2
(Background and Purpose) Safety in perspective of public design is an important element to make sustainable urban environment with the design of daily lives. Considering it is impossible to secure safety in the state with nothing by composing urban space that has no problem when urban environment, function, forms, people and actions meet, safety design in the urban environment should be applied and practiced to complement it. This study is to analyze and contemplate about the direction of safety design in practice-focused promotion plan. (Method) This study has chosen its range as Public Design Promotion Plan of Songpagu, Seoul, and tried to grasp the content of safety design projects and analyze them, judging that basic local governments' plans have a certain level of concreteness in presented strategic projects, since they are focused on practice plan to be applied in actual urban environment. This study selected pulic design promotion plan of Songpagu, Seoul. For the methods of study, firstly, safety design was theoretical considered and case-studied. Secondly, this study case-studied assessment index of public design project by seeing strategic projects. Thirdly, this study classified and extracted safety design-related projects out of public design promotion plan project, presented by Songpagu. Lastly, this study is to analyze and contemplate about the direction of safety design, regarding to the strategic projects related with those extracted safety designs. (Result) Among 19 public design promotion plans of Songpagu, there are 9 strategic projects related with safety design, where those concerning vulnerable class took the highest proportion. In addition to that, although public facilities, public space, and improvement of public space in visual image have been presented with the highest proportion to improve safety, it has been analyzed that improvement of visual image can enhance efficiency and enforcement through the table of Spider Diagram Analysis. (Conclusion) Strategic projects should be considered to enhance safety of residents by improving visual images. In addition to that, it should not stop at taking strategies in safety-related design projects but measures to collaborate with other departments to embody it to put those projects into practice effectively, because they can get the connection among those projects only when prior backgrounds to be improved are contained in the promotion plan in vulnerable areas. Regulation revisions and guidelines are be considered afterward, and it is expected to take the public design promotion plan that is able to plan safe urban environment in the district, by studying measures on concrete and practicable safety design-related strategic projects as well as consistent studies about safety design and its applications done by other local governments.
방사성물질 측정망 현황 및 하천·호소 내 인공방사성물질 (<sup>134</sup>Cs, <sup>137</sup>Cs, <sup>131</sup>I) 조사
김지유,정현지,안미정,홍정기,강태구,강태우,조윤해,한영운,설빛나,김완석,김경현,Kim, Jiyu,Jung, Hyun-ji,An, Mijeong,Hong, Jung-Ki,Kang, Taegu,Kang, Tae-Woo,Cho, Yoon-Hae,Han, Yeong-Un,Seol, Bitna,Kim, Wansuk,Kim, Kyunghyun 한국분석과학회 2015 분석과학 Vol.28 No.6
본 연구에서는「공공수역 방사성물질 측정망 운영 계획」에 따른 모니터링 수행 내용을 소개하였고, 하천 및 호소 60 개 지점을 대상으로 인공방사성물질(<sup>134</sup>Cs, <sup>137</sup>Cs, <sup>131</sup>I)의 농도를 조사하여 우리나라 지표수 내 방사성물질의 실태를 파악하고자 하였다. 채취된 시료는 마리넬리 비커를 이용한 감마분광 분석기법으로 분석하였다. <sup>134</sup>Cs와 <sup>137</sup>Cs은 모든 지점에서 MDA 미만으로 조사되었고, <sup>131</sup>I는 한 지점(0.533±0.058 Bq/L)을 제외한 모든 지점의 농도가 MDA 미만으로 나타났다. <sup>131</sup>I는 의료용으로 사용하는 물질로 환자의 배설물로 인해 하수처리장 인근 하천수에서 빈번하게 검출되는 물질로 알려져 있다. 따라서 <sup>131</sup>I가 검출된 원인을 파악하기 위해 하수처리장 방류지점을 포함한 <sup>131</sup>I가 검출된 상류수계 6개 지점을 추가 조사하였다. 조사결과, 하수처리장 처리수 방류지점에서부터 하류방향으로 <sup>131</sup>I가 지속적으로 검출되었으며, 농도는 0.257±0.034~0.799±0.051 Bq/L 범위로 조사되었다. 추가조사를 통해 하수처리장 방류수가 하천수의 <sup>131</sup>I 검출에 영향을 미치는 것으로 나타났다. A survey of the artificial radionuclides in rivers and lakes was conducted to investigate their levels in surface water. Water samples were collected at 60 points and analyzed by gamma-ray spectrometry with a measurement time of 10,000 seconds for <sup>134</sup>Cs, <sup>137</sup>Cs, and <sup>131</sup>I. The obained values were lower than MDA for all points, except one point for <sup>131</sup>I that was 0.533±0.058 Bq/L. <sup>131</sup>I is known as a radioactive material that occurs frequently in sewage treatment plants. Because it is often used for medical treatments and subject to spreading into the environment due to the excretion from the patients. For the point where <sup>131</sup>I was detected, we conducted additional investigation on the upstream river point and the effluent points of nearby sewage treatment plant to find the source of <sup>131</sup>I. <sup>131</sup>I was not detected at the upstream points of one of the upstream sewage treatment plants but found at the downstream points with the level being 0.257±0.034 to 0.799±0.051 Bq/L, proving the sewage treatment plant was the <sup>131</sup>Isource.