이용자간 만족도를 고려한 공원의 공간개선 방향연구 - 목포시 삼학도공원을 중심으로 -

박성현 ( Park Sung-hyun ),배현미 ( Bae Hyun-mi ) 한국도서(섬)학회 2020 韓國島嶼硏究 Vol.32 No.4

본 연구에서는 역사와 문화를 품고 있는 목포 삼학도공원의 재정비계획 수립과정에서 이용만족도를 높이기 위한 계획 및 설계에 필요한 기초자료를 제공하고자, 공원 이용자들을 대상으로 만족도 분석을 진행하였다. 구체적으로 먼저, 역사적인 측면에서 삼학도공원의 특징을 살펴본 후, 공원시설의 구성과 운용실태에 대해 살펴보았다. 다음으로 삼학도공원의 이용과 만족도 조사를 시민과 관광객을 대상으로 실시한 결과로는 첫째, 삼학도공원은 주말을 이용해서 가족 및 친구와 함께 여가를 즐기기 위한 공간으로서 근린공원의 특징을 보이고 있는데, 이는 시민들이 삼학도공원을 근린공원의 이미지로 인식하는 것과 맥락을 같이 하고 있다. 둘째, 삼학도공원을 찾는 관광객들은 전남지역에 거주하는 사람들이 많았고, 연령층은 시민과 비슷하게 40대와 50대가 가장 높은 것으로 나타났고, 이들은 가족과 함께 관광목적으로 방문한 것으로 나타났다. 셋째, 시민과 관광객 모두 삼학도공원의 이용 및 시설에 대해서는 대체로 만족하는 것으로 나타났으며, 시민은 그 이유로 편안한 쉼터와 좋은 자연환경이라고 응답하였다. 넷째, 시민과 관광객 모두 삼학도공원 이용 시 관리실, 화장실, 매점 등 안내 및 편의시설의 부족하다는 문제점을 제기하고 있으며, 삼학도에 새롭게 만들어졌으면 하는 시설과 사업에 대해시민과 관광객들은 섬의 정체성을 나타내기 위해 특색 없는 다리를 대신하여 육지와 삼학도를 이어주는 가동교 설치를 원하는 것으로 나타났다. 이용자간 만족도를 고려한 공원 공간개선 방향은 정리하면, 첫째 매립지의 기존 공원Zone(A)은 현재 공원시설을 최대한 활용함을 원칙으로 하고 이용측면에서 제기된 문제점을 개선하면서 지역 정체성을 살리고 최근의 트렌드에 맞는 새로운 아이템을 도입하는 방향으로 설계한다. 둘째, 삼학도 활용 Zone(B)은 복원된 삼학도를 적극적으로 활용하는 방향으로 설계한다. 셋째, 공원입구 Zone(C)는 공원의 위치 등 인지도 향상을 위한 안내 홍보 및 가동교 등 랜드마크 설치, 동선 유도책 등이 필요하다. 넷째, 목포내항 삼학도 해안 Zone(D)는 우수한 조망점이라는 특징을 적극 활용하고, 내륙과 내항측에서 접근이 용이한 동선 및 시선 유도계획 방향으로 설계한다. 본 연구의 결과를 통해 섬을 활용한 공원을 조성할 시 시설이용도 및 이용자 만족도를 높이 기 위해 일반적인 근린공원으로 그 역할을 제안하는 것보다는 해당 공원을 통해 지역의 문화와 정서를 담고 섬만의 정체성을 살리는 전략과 계획이 필요하며, 이러한 방식이 섬을 활용한 공원의 지속가능성을 보장할 수 있을 것이다. In this study, the author analyzed satisfaction with Samhak Island Park among park users with an aim to provide basic data essential to be applied in the planning and design phases in a way that enhances their satisfaction in the process of setting up the reorganization plan of this park entailing both the history and culture of Mokpo City. As a first step, the author first examined the characteristics of this park in terms of history and closely looked into the organization and features of park facilities. Secondly, the direction of space improvement plans was proposed based on the findings of the survey on satisfaction among residents and visitors at Samhak Island Park. To summarize the ways to improve park space considering satisfaction among park users, the current park Zone(A) at Mokpo landfill should be designed to address problems in terms of visiting, uphold the local identity, and introduce popular and trendy items, while maintaining the principle of making the best use of the present park facilities. Second, Zone(B) should be designed in a way that takes greater advantages of the restored Samhak Island. Third, Zone(C) representing an entrance requires tasks such as promotional activities to make public its location, landmark installments such as a movable bridge, and improved path guidance. Fourth, Zone(D) by the ocean of this island at the inner harbor should be designed to reflect its outstanding view point in the way that the users are allowed to have easier access from land as well as from the inner harbor as part of its view-attracting plan. The findings revealed that when it comes to building new parks using existing islands, strategies and plans to maintain its identity as an island while upholding its culture and feeling are needed rather than proposing its role as an ordinary neighborhood park to boost facility use and user satisfaction. This way is expected to successfully ensure sustainability related to parks using existing islands.

종방향 지관 플레이트 각형강관 T형 접합부의 구조적 거동

정상민(Jeong Sang-Min),박금성(Park Keum-Sung),배규웅(Bae Kyu-Woong),문태섭(Moon Tae-Sup) 대한건축학회 2004 大韓建築學會論文集 : 構造系 Vol.20 No.12

This paper describes the structural behavior of T-joints using square hollow sections with longitudinal branch plate that is used to connect brace and high tension tie bar Principal parameters are the ratio of chord widte to thickness(16.7≤2γ(B/T)≤31.3) and branch plate to chord width(0.20≤β(b1/B)≤0.85) The results from 12 specimens tested in compression indicated that failure mode changed from chord flange failure mode to chord web failure mode at β = 0.75 The dominant failure mode was chord flange failure for β ≤ 0.75 According to variety of longitudinal branch plate length, the capacity of strength was less than increasing branch plate length The strength formulae of CIDECT and other researchers are compared with the test results, and finally design guidelines have been presented based on Bae's strength formula for longitudinal branch plate T-joints

Elevational Distribution of Breeding Bird Communities in Seoraksan National Park, Korea

( Hyun-su Hwang ),( Jae-kang Lee ),( Tae-kyung Eom ),( Ho-kyoung Bae ),( Dong-ho Lee ),( Jong-hwan Lim ),( Sung-cheol Jung ),( Chan-ryul Park ),( Shin-jae Rhim ) 한국산림과학회(구 한국임학회) 2020 한국산림과학회지 Vol.109 No.1

In this study, the elevational distribution of breeding birds in Seoraksan National Park, Korea was investigated. Forty-six species of birds were documented from line transect surveys taken from Seorakdong at 230 m above sea level (a.s.l.) to the Daechungbong summit at 1708 m asl. Birdspecies richness and diversity were highest in Seorakdong and lowest at the Daechungbong summit. As elevation increased, bird species richness and diversity decreased, with a humped-shape trend being observed between 700 m and 1200 m a.s.l. Stepwise analyses revealed that breeding bird species diversity indices were significantly negatively correlated with elevation (r² = 0.327, P < 0.001) and positively correlated with vegetational coverage (r² = 0.324, P = 0.046). Higher elevations supported fewer birds than low and intermediate elevations. Projections at the local scale, including data on behavior and habitat use by birds, will be necessary for optimal conservation and management of the bird communities in Seoraksan National Park.

Elevational Distribution of Breeding Bird Communities in Seoraksan National Park, Korea

Hwang, Hyun-Su,Lee, Jae-Kang,Eom, Tae-Kyung,Bae, Ho-Kyoung,Lee, Dong-Ho,Lim, Jong-Hwan,Jung, Sung-Cheol,Park, Chan-Ryul,Rhim, Shin-Jae Korean Society of Forest Science 2020 한국산림과학회지 Vol.109 No.1

In this study, the elevational distribution of breeding birds in Seoraksan National Park, Korea was investigated. Forty-six species of birds were documented from line transect surveys taken from Seorakdong at 230 m above sea level (a.s.l.) to the Daechungbong summit at 1708 m asl. Birdspecies richness and diversity were highest in Seorakdong and lowest at the Daechungbong summit. As elevation increased, bird species richness and diversity decreased, with a humped-shape trend being observed between 700 m and 1200 m a.s.l. Stepwise analyses revealed that breeding bird species diversity indices were significantly negatively correlated with elevation (r² = 0.327, P < 0.001) and positively correlated with vegetational coverage (r² = 0.324, P = 0.046). Higher elevations supported fewer birds than low and intermediate elevations. Projections at the local scale, including data on behavior and habitat use by birds, will be necessary for optimal conservation and management of the bird communities in Seoraksan National Park.

자궁의 동정맥기형에 의한 제왕절개술 후 질출혈

전영은 ( Young Eun Jeon ),윤명근 ( Myoung Kun Yoon ),김성주 ( Sung Joo Kim ),장봉림 ( Pong Rheem Jang ),강정배 ( Jung Bae Kang ),박영한 ( Young Han Park1 ),임채춘 ( Chae Chun Rhim ),민수기 ( Soo Kee Min ) 대한주산의학회 2006 Perinatology Vol.17 No.1

Uterine arteriovenous malformations are very rare but potentially life threatening lesions. These lesions may be congenital or acquired, but especially occur in patients with a history of curettage, abortion or pregnancy. Color doppler ultrasonography is the preferred method of diagnosing of arteriovenous malformations. In many cases, hysterectomies are performed. But if patients want pregnancies, embolization therapy and conservative treatment are effective therapy. We have experienced a clinical case of uterine arteriovenous malformation, which is presented with a brief review of literature.

공동주택 주차장의 축적먼지 중 미량원소성분 분석과 오염원 평가

배건호(Gun Ho Bae),정철수(Cheol Su Jung),박규태(Kyu Tae Park),이명숙(Myoung Sook Lee),신동찬(Dong Chan Shin),김용혜(Yong Hye Kim),윤민혜(Min Hye Yoon),한영진(Young Jin Han),최혁(Hyuek Choi),백성옥(Sung Ok Baek) 大韓環境工學會 2011 대한환경공학회지 Vol.33 No.10

공동주택 주차장의 먼지오염실태를 연구하기 위하여 2010년 3월말에서 6월초까지 대구지역 공동주택 36곳의 지상주차장(36지점)과 지하주차장(36지점)을 대상으로 채취한 총 72개의 시료를 100 μm 이하로 체거름하고 산추출한 후 ICP로 14개원소를 분석하였다. 농축계수를 이용한 미량원소성분의 발생원 평가결과는 지상주차장과 지하주차장 모두 Fe, K, Mg, Mn, Na, V의 성분은 자연적인 발생원에 의한 영향을 받고 있는 반면에 Cd, Cr, Cu, Ni, Pb, Zn의 성분은 인위적인 발생원에 의한 영향을 받고 있는 것으로 나타났다. 한편 Ca은 지상주차장의 경우에는 자연적인 발생원의 영향을 받았고, 지하주차장의 경우에는 인위적인 발생원의 영향을 받은 것으로 나타났다. 미량원소성분의 농도분석 결과는 자연적인 발생원과 관련된 성분이 인위적인 발생원과 관련된 성분보다 매우 높은 농도를 보였다. 인위적인 발생원성분의 기여도는 지하주차장이 지상주차장보다 높았으며, 미량원소성분의 평균농도 또한 지하주차장이 지상주차장보다 높았다. 오염지수를 이용한 중금속성분의 오염도를 평가한결과는 지하주차장이 지상주차장보다 5.5배정도 높게 오염된 것으로 나타났다. 미량원소성분간의 상관성 분석결과는 지상주차장이 지하주차장에 비해 유의한 상관성을 나타내는 항목이 많았으며, 특히 자연적 발생원 성분간 유의한 상관성이 더욱 크게 나타났다. 또한 유해 중금속성분과 지하주차장의 영향인자간의 상관성을 분석한 결과는 주차대수(공간)가 적은 지점이 큰 지점보다, 환기장치를 가동하지 않은 지점이 가동한 지점보다, 그리고 최근 도색년도와 청소일이 오래된 지점이 상대적으로 유해중금속을 많이 함유하고 있었다. In order to investigate the degree of apartment parking lot dust contamination, total 72 samples of parking lot dust (36 from ground parking lots and 36 from the underground parking lots) were collected in Daegu city from the end of March to the early June 2010. The dust samples were sieved below 100 μm, and analysed by ICP for 14 elements after an acid extraction. Results obtained from the source assessment of trace element using enrichment factor showed that Fe, K, Mg, Mn, Na and V were influenced by natural sources, while Cd, Cr, Cu, Ni, Pb and Zn were influenced by anthropogenic sources in both the ground parking lot and the underground parking lot. And results showed that Ca were influenced by natural sources in the ground parking lot, but influenced by anthropogenic sources in the underground parking lot. The measured values were remarkably higher in components from natural sources than in components from anthropogenic sources. Underground parking lot dust was more affected by anthropogenic sources and contaminated compared with the ground parking lot dust. Pollution index of heavy metals revealed that underground parking lot dust was 5.5 times more contaminated with heavy metal components than the ground parking lot dust. The results of correlation analysis among trace elements indicated that components in the ground parking lot were more correlated than those in the underground parking lot, and especially more correlated with natural sources-natural sources. Analysis for correlations between components and influencing factors in the underground parking lot showed that concentrations of heavy metals were higher with smaller number of parking spaces and no ventilation system, and older apartments in last paint and cleaning had relatively higher contents of heavy metals than those of recently painted and cleaned.

Patterns of Alcohol Consumption and Suicidal Behavior: Findings From the Fourth and Fifth Korea National Health and Nutritional Examination Survey (2007-2011)

Bae, Hong-Chul,Hong, Seri,Jang, Sung-In,Lee, Kwang-Sig,Park, Eun-Cheol The Korean Society for Preventive Medicine 2015 예방의학회지 Vol.48 No.3

Objectives: The purpose of this study was to investigate the association between suicidal behavior and patterns of alcohol consumption in Korean adults. Methods: This study was based on data provided by the Korea National Health and Nutritional Examination Survey from 2007 to 2011. A total of 42 347 subjects were included in the study, of whom 19 292 were male and 23 055 were female. Logistic regression analysis was performed to assess the association between patterns of alcohol consumption and suicidal behavior. Results: Among the study subjects, 1426 males (11.3%) and 3599 females (21.2%) had experienced suicidal ideation, and 106 males (0.8%) and 190 females (1.1%) had attempted suicide during the previous 12 months. Alcohol Use Disorders Identification Test (AU-DIT) scores were found to be associated with suicidal ideation in males and associated with both suicidal ideation and suicide attempts in females. Alcoholic blackouts were associated with suicidal ideation and suicide attempts in males, and were also associated with suicidal ideation in females. Conclusions: In this study, we found that certain patterns of alcohol consumption were associated with suicidal behaviors. In particular, only alcoholic blackouts and categorized AUDIT scores were found to be associated with suicidal behavior in males. We therefore suggest that further research is needed to examine this relationship prospectively and in other settings.

Highly efficient flexible OLEDs based on double-sided nano-dimpled substrate (PVB) with embedded AgNWs and TiO₂ nanoparticle for internal and external light extraction

Bae, Bong Han,Jun, Sungwoo,Kwon, Min Sung,Park, Young Wook,Han, Chul Jong,Kim, Seong-Il,Ju, Byeong-Kwon Elsevier 2019 Optical materials Vol.92 No.-

<P><B>Abstract</B></P> <P>A light extraction structure and a flexible electrode have been developed to enhance the electroluminescence (EL) efficiency of flexible organic light-emitting diodes (FOLEDs). However, these structures are still influenced by optical losses, poor electrical stability, and low throughput, and are not suitable to be adopted into FOLEDs due to the surface roughness problem, low flexibility/adhesion, complicated process, and high temperature/pressure process. Here, to solve these problems, we demonstrate embedded Ag nanowires (AgNWs) in flexible substrate and highly flexible random nano pattern via easy/low-cost solution form process at atmospheric pressure and low temperature without any additional material. This study demonstrates an internal and external light extraction structure composed of double-sided nano-dimpled substrate PVB (DndP), which is directly fabricated on both sides of a flexible substrate (polyvinyl butyral, PVB) only in itself without additional material via the easy/low-cost transferring process using the anodic aluminum oxide (AAO) template by an anodization process-based solution form at atmospheric pressure and low temperature. Therefore, because the DndP and the substrate are composed of the same material, PVB, there is no light loss between their interfaces. In addition, a high-refractive-index TiO<SUB>2</SUB> nanoparticle, for the scattering effect, and AgNWs, for electrode flexibility, are embedded into the DndP via the covering method using the solution form. Such structures exhibit extraordinary mechanical flexibility due to the AgNWs embedded in the PVB substrate. Therefore, FOLEDs using such structures can be well adapted to flexible/rollable/foldable displays and wearable application devices. Moreover, the corrugated surface of FOLEDs by such structures can improve the current flow through increased surface area of electrodes and extract the trapped light through the scattering effect (Rayleigh, Mie), reducing the total reflection and coupled photon in metal/dielectric. In addition, the FOLEDs with such structures show color/spectrum-stable property and independence of viewing angles owing to their random nature. The final green FOLEDs with DndP, embedded scattering TiO<SUB>2</SUB> nanoparticle, and embedded AgNWs&PEDOT:PSS demonstrate an outstanding EL efficiency enhancement ratio of 2.23 time via internal and external light extraction without electrical short.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Demonstration of double-sided nano-dimpled substrate (PVB) as internal and external light extraction structure to improve electroluminescence efficiency of flexible organic light-emitting diodes. </LI> <LI> Using easy/low-cost transferring process and anodization process-based solution form at atmospheric pressure and low temperature without additional material. </LI> <LI> Embedded high-refractive-index TiO<SUB>2</SUB> nanoparticle in PVB substrate to improve scattering effect. </LI> <LI> Embedded Ag nanowires (AgNWs) in PVB substrate to solve flexibility/adhesion/surface roughness problem of device. </LI> </UL> </P>

Decreased Expression of the Suppressor of Cytokine Signaling 6 in Human Hepatocellular Carcinoma

Bae, Hyun-Jin,Noh, Ji-Heon,Eun, Jung-Woo,Kim, Jeong-Kyu,Jung, Kwang-Hwa,Xie, Hong Jian,Ahn, Young-Min,Ryu, Jae-Chun,Park, Won-Sang,Lee, Jung-Young,Nam, Suk-Woo The Korean Society of Toxicogenomics and Toxicopro 2009 Molecular & cellular toxicology Vol.5 No.3

Suppressors of cytokine signaling (SOCS) proteins were originally identified as negative feedback regulators of cytokine signaling and include the Janus kinase/Signal transducer and activator of transcription (JAK/STAT) pathways. Recent studies have shown that SOCS proteins negatively regulate the receptor tyrosine kinase (RTK) pathway including the insulin receptor (IR), EGFR, and KIT signaling pathways. In addition, SOCS1 and SOCS3 have been reported to have anti-tumor effects in human hepatocellular carcinoma (HCC). However, it is uncertain whether other members of the SOCS family are associated with tumor development and progression. In this study, to investigate whether SOCS6 is aberrantly regulated in HCC, we examined the expression level of SOCS6 in HCC by Western blot analysis and immunohistochemical staining. The results showed that SOCS6 was down-regulated in all examined HCCs compared to the corresponding normal tissues. In addition, expression of SOCS6 was observed in the cytoplasm of most normal and precancerous tissue, but not in the HCCs by immunohistochemical staining. This is first report to demonstrate that SOCS6 is aberrantly regulated in HCC. These findings suggest that underexpression of SOCS6 is involved in hepatocarcinogenesis, and SOCS6 may play a role, as a tumor suppressor, in HCC development and progression.

Privacy Enhanced Security Mechanism for Grid

Sang-Bae Park 한국콘텐츠학회 2009 ICCC International Digital Design Invitation Exhib Vol.2009 No.12

Grid system is based on the Grid Security Infrastructure (GSI). GSI provides authentication and authorization performed by system. Because grid system has been developed focusing on availability, there are some lacks of privacy consideration. In this paper, we introduce a new privacy enhanced security mechanism for grid systems. With this mechanism, user can participate in resource allocation and authorization to user's contents more actively. And this mechanism does not need to change previous middleware and minimize the computational overhead.