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      • 법규에 따른 자원회수시설의 건축적 형태에 관한 연구 - 서울과 도쿄를 중심으로 -

        정승원,이강준,Jung, Seung-won,Lee, Kang-jun 인천대학교 도시과학연구원 2022 도시과학 Vol.11 No.1

        Waste to Energy Plant were recognized as hateful facilities, and there were many conflicts in the location due to social problems such as the NIMBY phenomenon due to problems such as damage to property in the surrounding area, odor, and image loss. Problems such as air pollution and odor are solved by the development of advanced prevention facilities such as electric dust collectors, wet cleaning systems, semi-dry reaction towers, bag filters, and catalyst towers (SCR: Selective Catalytic Reduction), and air recycling facilities in waste storage tanks. However, it is being avoided because of the perception that it is an incinerator. To resolve these conflicts, the government installs and operates resident convenience facilities to compensate residents near resource recovery facilities, provides green space and improves the environment, and supports heating expenses in accordance with the 「Waste Treatment Facility Support Act」. The purpose of this study is to derive implications through the analysis of domestic and overseas case studies for resident convenience facilities and environment improvement for the promotion of local communities in resource recovery facilities and use them as basic data for community promotion and environmental improvement when installing resource recovery facilities in the future.

      • KCI등재

        폴리머 기판위에 형성된 나노구조제어 알루미나의 캐패시터 특성

        정승원,민형섭,한정환,이전국,Jung, Seung-Won,Min, Hyung-Sub,Han, Jeong-Whan,Lee, Jeon-Kook 한국재료학회 2007 한국재료학회지 Vol.17 No.2

        Embedded capacitor technology can improve electrical perfomance and reduce assembly cost compared with traditional discrete capacitor technology. To improve the capacitance density of the $Al_2O_3$ based embedded capacitor on Cu cladded fiber reinforced plastics (FR-4), the specific surface area of the $Al_2O_3$ thin films was enlarged and their surface morphologies were controlled by anodization process parameters. From I-V characteristics, it was found that breakdown voltage and leakage current were 23 V and $1{\times}10^{-6}A/cm^2$ at 3.3 V, respectively. We have also measured C-V characteristics of $Pt/Al_2O_3/Al/Ti$ structure on CU/FR4. The capacitance density was $300nF/cm^2$ and the dielectric loss was 0.04. This nano-porous $Al_2O_3$ is a good material candidate for the embedded capacitor application for electronic products.

      • KCI등재

        A Study on the Fine Structure of the Marine Diatoms of Korean Coastal Waters - Genus Thalassiosira 4

        정승원,Seung Won Jung,Jin Hwan Lee 한국조류학회I 2009 ALGAE Vol.24 No.2

        The marine phytoplankton diatom Thalassiosira species are described from the Korean coastal waters, based on observations of fine structure of its frustules. As a fourth series, this study deals with 5 Thalassiosira species (T. decipiens, T. eccentrica, T. mala, T. nodulolineata, and T. proschkinae). The most striking features of these species are also the form and position of two processes on frustules. There is a central strutted process on valve face except T. nodulolineata, which has a modified one on its center. The external tubes of marginal strutted processes are divided two forms: “pile” form in T. decipiens and T. proschkinae, “short straw” form in T. eccentrica and T. nodulolineata. T. mala does not present the external tubes in valve margin. The labiate processes are located in valve margin except T. proschkinae, which has it on valve face. Of these, three species (T. mala, T. nodulolineata at a final contentration of 5% and T. proschkinae) were newly recorded in the coastal waters of Korea.

      • KCI등재

        2002-2007년 통영바다목장해역에서 식물플랑크톤 현존량 및 생체량에 따른 우점종의 변동 및 관계

        정승원,권오윤,이진환,Jung, Seung-Won,Kwon, Oh-Youn,Lee, Jin-Hwan 한국조류학회(藻類) 2008 ALGAE Vol.23 No.1

        In order to understand variation and relationship between standing crops and biomass of phytoplankton dominant species for the long term periods, this study was seasonally investigated in the marine ranching ground of Tongyeong coastal waters from 2000 to 2007. Total 268 taxa representing 217 Bacillariophyceae, 46 Dinophyceae, 4 Dictychophyceae, 1 Euglenophyceae were observed in phytoplankton communities. Dominant species consisted of 5 species as standard in standing crops: Chaetoceros curvisetus (18.01%), Chaetoceros socialis (12.95%), Skeletonema costatum (8.39%), Chaetoceros compressus (6.87%), Asterionellopsis glacialis (5.02%). However, to determine dominant species as biomass concept, Ditylum brightwellii, Guinardia striata, Rhizosolenia spp. and Skeletonema costatum were occupied with dominant species (19.67%). As determining for cell sizes, dominant species were divided with two groups such as micro- and nanophytoplankton (standing crops) and mesophytoplankton (biomass). However, Skeletonema costatum in anophytoplankton was associated to affect fluctuation between standing crops and biomass.

      • KCI등재

        대추 추출물이 유산균의 생육에 미치는 영향

        정승원,노완섭,Jung Seung-Won,Noh Wan-Seob 동아시아식생활학회 2006 동아시아식생활학회지 Vol.16 No.3

        This study was carried out to survey the effect of Jujube extract on the growth of 3 strains of lactic acid bacteria(LBA) starter cultures in the MRS broth by the addition of 0, 0.1, 0.5, 1 and 2% extract The pH, titratable acidity and OD of LAB were investigated in order to get fundamental knowledge for the development a new product. The effects of Jujube extract on the growth of LAB were variable depending upon the LAB species and concentrations of Jujube extract significantly (p<0.05). In the results, Jujube extract enhanced the acid production and propagation by the 3 LAB strains with increasing concentration of Jujube extracts until 2.0% added was to the MRS broth medium (p<0.05). Addition of Jujube extract markedly stimulated the acid production and propagation of Lactobacillus acidophilus, Streptococcus thermophilus and Bifidobacterium longum.

      • KCI등재

        악안면 기형의 상하악골 전후방적 위치관계에 대한 McNamara Analysis와 Delaire Analysis의 기준선 비교연구

        정승원,김소미,변성수,박형식,정영수,Chung, Seung-Won,Kim, So-Mi,Byun, Sung-Soo,Park, Hyung-Sik,Jung, Young-Soo 대한악안면성형재건외과학회 2011 Maxillofacial Plastic Reconstructive Surgery Vol.33 No.4

        Purpose: McNamara and Delaire analyses are two commonly used analytic methods, yet, they differ in their theoretic concepts and different reference lines are used for ideal surgical prediction. Therefore, the use of different analytic methods may result in different surgical plans. The purpose of this study was to compare the anterior and posterior relationship of the maxilla and mandible by using McNamara and Delaire analysis. Methods: 30 Korean patients (15 male and 15 female) who had visited the Department of Oral and Maxillofacial Surgery, College of Dentistry, Yonsei University, for dentofacial evaluation were studied by using McNamara's and Delaire's analyses. Results: On the maxillary analysis, 26 out of 30 patients (86.7%) were in accordance. On the mandibular analysis, 20 out of 30 patients (66.7%) were in accordance. On the maxillary analysis, McNamara's analysis showed an average of 0.36 mm greater amount of prognathism compared to Delaire's analysis, and this was not statistically significant. On the mandibular analysis, McNamara's analysis showed an average of 6.03 mm greater amount of prognathism compared to Delaire's analysis, and this was statistically significant. On the mandibular analysis, 26 out of 30 patients (86.7%) showed a greater amount of prognathism on McNamara's analysis compared to that of Delaire's analysis. The remaining 4 patients (13.3%) showed the same amount of prognathism on both analyses. Conclusion: These results may serve as a reference for surgeons when determining which analytic method is to be used for optimal surgical results.

      • SCOPUSKCI등재
      • KCI등재

        병리조직 소견과 인터페론감마분비검사를 통해 진단된 경화홍반 3예

        정승원 ( Seung-won Jung ),최응호 ( Eung Ho Choi ) 대한피부과학회 2022 대한피부과학회지 Vol.60 No.2

        Erythema induratum (EI) is a tuberculid caused by a hypersensitivity reaction against Mycobacterium tuberculosis or its metabolic products, but it is usually absent in skin lesions. Interferon-γ release assay (IGRA) has been used for diagnosing M. tuberculosis infection instead of the tuberculin skin test and mycobacterial culture, which have limitations for accurate diagnosis. EI was clinically suspected in our cases, and all of them had a family history of tuberculosis. Histopathological findings were consistent with those of EI. Mycobacterium-reverse blot hybridization assay conducted in two cases was positive for M. tuberculosis, and all cases were positive for IGRA. Herein, we report a case series of EI diagnosed by histopathology and IGRA and then successfully treated with anti-tuberculosis treatments. (Korean J Dermatol 2022;60(2):115∼119)

      • KCI등재

        마산만 표층수에서 물리-화학적 수질요인과 엽록소-a 농도 사이의 관계: 격일 관측 자료

        정승원 ( Seung Won Jung ),임동일 ( Dhong Il Lim ),신현호 ( Hyeon Ho Shin ),정도현 ( Do Hyun Jeong ),노연호 ( Youn Ho Roh ) 한국환경생물학회 2011 환경생물 : 환경생물학회지 Vol.29 No.2

        In order to investigate water quality factors controlling chlorophyll-a concentrations, the by-daily monitoring was conducted from February to November 2010 in 4 stations of Masan Bay. Seasonal variability in physico-chemical factors was mainly controlled by freshwater loading as a result of precipitation: chemical oxygen demand, suspended solids and nutrient concentrations rapidly increase during the heavy rainy season, whereas they decrease in the dry season. From late winter to mid spring, phosphorus and silica sources relative to Redfield ratio were probably functioned as limiting factor for phytoplankton flourishing in surface waters, but nitrogen concentration during mid-spring to autumn might be responsible for the increase of phytoplankton biomass. The multiple regression analysis revealed that variations in chlorophyll-a concentration may be strongly correlated with changes of water temperature, chemical oxygen demand, dissolved inorganic phosphorus in spring, and salinity, chemical oxygen demand and precipitation in summer. Consequently, in the Masan Bay, a heavy rainfall event is an important factor to determine changes of biotic and abiotic factors, and in addition the dynamics of chlorophyll- a concentration are strongly affected by changes of hydrological factors, especially water temperature, precipitation and nutrients.

      • KCI등재

        역량강화적 직업재활서비스 방법의 구성요인에 관한 연구

        정승원(Seung Won Jeong),정지훈(Ji Hoon Jung),박세진(Sae Jin Park) 한국직업재활학회 2007 職業再活硏究 Vol.17 No.2

        본 연구의 목적은 직업재활서비스에서 실천해야 할 역량강화적 방법들을 문헌연구를 통해 살펴보고, 직업재활서비스에서 역량강화적 방법의 구성요인을 추출하는데 있다. 직업재활에서 이용자의 역량강화를 촉진하기 위한 서비스 방법에 관한 문헌연구 결과 다음의 세 가지 차원의 방법들이 도출되었다. 첫째, 상담자와 이용자의 협력관계가 중요시되는 방법(상담자-이용자 협력관계), 둘째, 정보에 근거한 선택에 초점을 두는 방법(정보에 근거한 선택), 셋째, 자기결정 훈련과 지원에 역점을 두는 방법(자기결정)이다. 세 가지 차원의 방법을 구성하는 핵심적인 요인들을 파악하기 위하여 구체적인 서비스 방법들을 포함하는 ‘역량강화적 직업재활서비스’ 문항을 개발하였다. 문항개발을 위해 1, 2차 전문가 자문과 예비 조사 등을 실시하였다. 242명의 직업재활서비스 이용자가 응당한 ‘역량강화적 직업재활서비스 실천에 관한 설문조사’ 결과를 바탕으로 탐색적 요인분석을 하여 척도의 타당도 검증과 요인 구조를 확인하고, Cronbach α 계수를 구하여 신뢰도를 검증하였다. 분석 결과 첫째, 상담자-이용자 협력 차원은 단일 요인으로 나타났으며 ‘협력관계’ 요인으로 명명하였다. 둘째, 정보에 근거한 선택 차원의 하위 요인은 ‘서비스 정보 공유’ 요인과 ‘선택행동 훈련’ 요인으로, 셋째, 자기결정 차원의 하위 요인은 ‘자기결정적 행동’ 요인과 ‘자기결정을 위한 기관지원’ 요인으로 추출되었다. The purpose of this study was to identify the Empowermental Vocational Rehabilitation methodes and their composition factors. Data was collected from service users who had been using vocational rehabilitation services for more than 1 year or who had already acquired a job after more than 1 year of services at the organizations as follows : the Vocational Rehabilitation Facilities, the Vocational Competency Development Centers. the Vocational Rehabilitation Centers. A total of 340 answers from respondents were retrieved. Excluding replies which could be defined as being insincere, 242 surveys were used as the subjects for the analysis. To accomplish the study, an Exploratory Factor Analysis with Principal Component Extraction and Varimax Rotation was used. The results of this study were as follows : The key methods of vocational rehabilitation for empowering consumers were working alliances, informed choice, and self-determination. The results of the exploratory factor analysis yielded results which showed that the Working Alliance had a single factor. Informed Choice had two factors named as service information and choice skill training respectively. Self-determination also had two factors, which were named as self-determinative activities, and organizational supports for user s self-determination.

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