• Title/Summary/Keyword: parks

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Influence of trailing edge serration in the wake characteristics of S809 airfoil

  • Mano Sekar;Amjad Ali Pasha;Nadaraja Pillai Subramania
    • Wind and Structures
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    • v.37 no.1
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    • pp.15-23
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    • 2023
  • The wake behavior of extended flat plate and serration in the trailing edge of S809 airfoil is presented in this experimental study using wind tunnel testing. The clustering of wind turbines in wind parks has recently been a pressing issue, due to the expected increase in power output and deciding the number of wind turbines to be installed. One of the prominent factors which influence the performance of the subsequent wind turbines is the downstream wake characteristics. A series of wind tunnel investigations were performed to assess the downstream near wake characteristics of the S809 airfoil at various angles of attack corresponding to the Reynolds Number Re = 2.02 × 105. These experimental results revealed the complex nature of the downstream near wake characteristics featuring substantial asymmetry arising out of the incoherent flow separations prevailing over the suction and the pressure sides of the airfoil. Based on the experimental results, it is found that the wake width and the downstream velocity ratio decrease with an increase in the angle of attack. Nonetheless, the dissipation length and downstream velocity ratio increases proportionally in the downstream direction. Additionally, attempts were made to understand the physical nature of the near wake characteristics at 1C, 2C, 3C and 4C downstream locations.

A Study on the Differences in Perception between Regions through the Residential Satisfaction Survey in Gangwon-do (강원도 주거만족도 조사를 통해 살펴본 지역 간 인식 차이 연구)

  • Kwang-Min, Ham;Jong-Hyun, Ryu
    • Journal of Environmental Science International
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    • v.31 no.11
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    • pp.923-931
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    • 2022
  • The aim of this study was to analyze differences in the perception of Gangwon-do residents using a satisfaction survey. The residents were found to be most satisfied with sectors such as parks/green spaces, landscape, and public order; however, they were least satisfied with transportation, culture, sports, medical services, and welfare facilities. Additionally, among all the items in the satisfaction survey, job satisfaction was the lowest. When comparing satisfaction trends observed in the city to those of the county, the overall satisfaction of the county was found to be slightly higher. This result could be attributed to young people being underrepresented in this survey in conjunction with the greater policy-level support for middle-aged people by from the government and Gangwon-do. Therefore, it would be worthwhile to create policies that primarily support young people and to also to create high-quality jobs with stable pay and employment prospects. This could minimize the outflow of youth and even encourage their inflow to similar small provincial cities. In Southern region and Seorak region of Gangwon-do, the satisfaction with gap between house price and region was low, which might be related to the increased demand for real estate throughout this area.

A Study on the Characteristic Micro-Climate in the City using Computerized Fluid Analysis and Actual Measurement (전산유체해석과 실측을 이용한 도심내 미기후 특성에 대한 연구)

  • You, Jang-Youl;Park, Min-Woo
    • Journal of Korean Association for Spatial Structures
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    • v.23 no.1
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    • pp.35-43
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    • 2023
  • Microclimate analysis was conducted through actual measurement according to land use status in urban, and CFD analysis was conducted to analyze and predict the microclimate characteristics of urban, and compared and analyzed with the actual measurement results. It was measured in high-rise areas and parks, and the temperature of the park area was 0.4 to 0.6℃ lower, and the relative humidity was 1.0 to 3.0% higher. The correlation coefficient was obtained by comparing the results of the computational fluid analysis with the results of the computational fluid analysis at the actual location located within the CFD analysis area for validation. The seasonal correlation coefficients are all higher than 0.8, so it is judged that they can be applied to microclimate analysis in urban area. The computational fluid analysis was divided into three areas (low-rise, low and high-rise, and high-rise) centered on the A2 point. On average, the low-rise area was 0.1 to 0.4% higher than the high-rise area. In the low and high-rise area and high-rise area, the pith of buildings are wide, so the airflow is smooth, so it is judged that the temperature is relatively low.

Class, Nation, and Sexuality: Discourse of Homosexuality in Eighteenth-Century Britain (계급, 민족, 섹슈얼리티 -18세기 영국 동성애 담론)

  • Gye, Joengmeen
    • Journal of English Language & Literature
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    • v.53 no.2
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    • pp.203-218
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    • 2007
  • The early eighteenth century witnessed the birth of homosexuality as an identity and the emergence of a homosexual subculture in Britain. The homosexual subculture revealed itself through identified walkways and parks, gestures by which men might signal their interests to each other, and meeting places called "molly houses" where homosexuals could gather in relative safety. As early as 1703 the homosexuals seem to have overrun London. Homosexuals in eighteenth-century Britain provides a figure on which a variety of social anxieties could be displaced. Homosexuality is partly sexual transgression; mostly, it represents a variety of class, national, political transgressions. The association of British homosexuality with the fashion for Italian tastes was commonplace, and the growth of homosexuality was regarded as the greatest threat to the glorious Britain by destroying all its masculine virtues. Homosexuality was widely believed to be particularly common among the aristocracy and to be symptomatic of the increasing depravity of that class. The radicals in eighteenth-century Britain did not hesitate to exploit the surge in homophobia. They identified aristocratic patronage as one of the aristocratic practices that encouraged homosexuality and thus stigmatized the sort of male bonding that helped sustain aristocratic hegemony.

Exploring Spatio-temporal Patterns of Population and its Influential Factors in Jeonju (거주인구의 시공간 변화 및 영향요인 분석: 전라북도 전주시 사례를 중심으로)

  • Jicheol Yang;Jooae Kim;Kuk Cho;Sangwan Lee
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.46 no.3
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    • pp.251-258
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    • 2023
  • This study (1) explored spatio-temporal population distribution patterns in Jeonju by using emerging hot spot analysis and (2) identified the influential factors to determine the spatio-temporal patterns by using multinomial logit model. The major findings are as follows. First, the results of emerging hot spot analysis indicated that the 100*100m grid in the urban area of Jeonju was found to have a category of hot spots, whereas most of the cold spot series was concentrated in the outskirts of the city. Also, new towns such as Jeonju Eco City, Jeonbuk Innovation City, and Hyocheon District were persistent or intensifying hot spots, Third, the results of multinomial logit model revealed that the factors influencing deterrmining the spatio-temporal patterns were accessibility to schools, hospitals, parks, and walfare services. This study offered a deeper understanding of urbanization and regional changes in Jeonju, and important information for urban planning.

A Study on Safe Hiking According to Caution Against Cardiac Arrest That Occurs Unexpectedly during Mountaineering (등산 중 발생하는 심정지 주의에 따른 안전산행 연구)

  • Park, Ok-Nam;OH, Hye-Ryeong
    • Proceedings of the Korean Society of Disaster Information Conference
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    • 2023.11a
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    • pp.129-130
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    • 2023
  • The From COVID-19 until recently, the demand for hiking has been rapidly increasing due to the popularization of mountain seekers.,On weekends and holidays, people who do not hike frequently while hiking in large and small mountains to see wildflowers and foliage in the mountains are more likely to be exposed to safety accidents due to an increase in sudden muscle use.,If you fall or get muscle damage during a hike, you can prevent a major accident with a simple treatment. In some cases, the error of first aid may permanently damage the important function of the body.,In particular, during a safety accident on a mountain, while climbing in light clothes, the body temperature rises due to the sweat that was shed at the beginning, and the blood pressure rises due to the contraction of the blood vessels due to the drop in body temperature from the top, resulting in an emergency such as cardiac arrest.,According to statistics from the National Park Service, nearly half (48%) of deaths in national parks are known to be sudden cardiac deaths.,There are many safety accidents that occur frequently in the mountains, but among them, we will study how to cope with acute diseases such as cardiac arrest due to increased blood pressure due to insufficient body temperature control, chest pain or dyspnea, and heart burden due to excessive hiking.

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Taxonomic Characteristics of Twelve New Yeast Species Isolated in 2023 Not Listed in the National Species List of Korea

  • Jung-Woo Ko;Ye-Jin Kim;Eun-Jeong Kim;Sang-Su Lee;Seong-Min Choi;Chorong Ahn;Chang-Mu Kim;Cheon-Seok Park
    • The Korean Journal of Mycology
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    • v.52 no.1
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    • pp.35-54
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    • 2024
  • With a history spanning 9,000 years, yeast has played a central role in the traditional production of fermented foods, particularly alcohol and bakery. Recent research has highlighted the versatility of yeast in various industries, including the production of bioactive compounds, bioethanol, pigments, and enzymes, and as a host for molecular biology studies. In Korea, yeast isolation has traditionally focused on traditional fermented foods such as soybean paste. However, there is a growing trend in the isolation and characterization of yeasts from natural environments such as flowers and fruits for industrial applications. In this study, we isolated and identified 12 yeasts from various natural environments in Korea, including botanical gardens and parks that are not listed on the National Species List of Korea (NSLK). These newly discovered species included Sakaguchia oryzae, Cystobasidium raffinophilum, Meira argovae, Kazachstania humilis, Meyerozyma smithsonii, Anthracocystis trispicatae, Naganishia brisbanensis, Tremella yokohamensis, Kwoniella shandongensis, Kwoniella newhampshirensis, Aureobasidium proteae, and Rhodotorula dairenensis.

Remediation in Tradition Theatrical Stage Design (전통적 연극무대디자인의 재매개)

  • Jung, Min-Soo
    • The Journal of the Korea Contents Association
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    • v.8 no.12
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    • pp.207-213
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    • 2008
  • For decades, we have filled our theme parks, shopping malls, a streets and etc. with complementary or competing medias. These spaces have remedied newspapers, magazines, radio, TV and film or have been the object for remediation. Because there has been no remediation in traditional theatrical stage design, many problems come along with the design, which makes audiences hard to feel the sense of presence. It's time to have systematic research to find a way out for the solution of traditional theatrical stage design. This study suggests the solutions for remediation of traditional theatrical stage design, so we are going to research with laying emphasis on the cooperative works between the fields of theatrical stage design and the Visual Effects par that forms extensive and diverse portions. The proposal for remediation of traditional theatrical stage design with practical use of Visual Effects will create economical higher value-added through the systematization of close and cooperative work between the fields of Visual Effects and theatrical stage design. In addition, the systematization of the cooperation of these two parts will make another communicative paradigm that audiences have never been able to experience before in traditional theatrical stage design.

Governance of Regional Innovation Policies of the Ruhr Area in Germany (독일 루르지역의 지역혁신정책 거버넌스 연구: 혁신주체간 협력관계를 중심으로)

  • Shin, Dong-Ho
    • Journal of the Economic Geographical Society of Korea
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    • v.9 no.2
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    • pp.167-180
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    • 2006
  • The Ruhr region used to be a large industrial area, working as an engine of economic growth of the Germany. However, the region has been suffering from economic and social problems originating from de-industrialization. Since the 1970s, various levels of governments have attempted to solve the problems with policies of regional innovation, e.g., establishing technology parks, competence centers, and business incubators to promote start-ups, technology transfers, and networks between governments, businesses, universities, public research institutes, and the public. In this context, this paper attempts to analyse governance of regional innovation policies of the Ruhr area, based on an analytical framework developed by a groups of researchers, i.e.. Bae et al (2006), The paper concludes that the roles of governments are important in creating and implementing regional innovation policies of the Ruhr area, the policies heavily rely on the R&D capacity of local universities and public research institutes; and various levels of governments have different roles to play.

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Women's Body Exposure in Leisure Wear during the 1930s -Focused on Bathing Suits, Shorts, and Halters-

  • Lee, Yhe-Young;Farrell-Beck, Jane
    • Journal of the Korean Society of Clothing and Textiles
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    • v.36 no.6
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    • pp.592-600
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    • 2012
  • Social reactions to body exposure in American leisure wear (bathing suits, shorts, and halters) in the 1930s were analyzed to provide an understanding of the process of adopting more abbreviated and less-occasion specific styles of garments in women's fashion. The research questions were as follow: How did women expose their bodies in leisure wear during the 1930s? How did the social reaction to women's body exposure in leisure wear change throughout the 1930s? How did the body exposure in women's leisure wear play a significant role in the history of women's fashion? Primary sources were collected from issues of The New York Times published in the 1930s. Topics including dress, fashion, ethics, social ethics, and sexual ethics, were reviewed in The New York Times indices. The findings were analyzed and interpreted with reference to secondary sources that included books and research papers. The results showed that the body exposure of the styles as well as the place where these styles were worn was a public issue. Women were criticized and regulated for body exposure as well as for wearing bathing suits, shorts, and halters on the streets. However, the social regulations that restricted bathing suit styles almost disappeared by the end of the decade. This represented the change of social expectations toward body exposure in the 1930s. In addition, reports of laws that forbade the wearing of bathing suits, halters, and shorts outside of beaches, pools, and parks indicated women's increased attempts to expose their bodies in public places. However, reactions to women's body exposure in leisure wear changed to accept more flexibility in the social customs throughout the decade. These phenomena were a partial step toward the popularization of less occasion-specific styles - sportswear - that took place in the 20th century.