• Title/Summary/Keyword: big concept

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A Survey on the Disposition of Ecotourism (생태관광성향에 관한 조사연구)

  • 김용근;조중현
    • Korean Journal of Environment and Ecology
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    • v.12 no.2
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    • pp.156-162
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    • 1998
  • The disposition of ecotourism was surveyed form October 5 to 22 in 1996. 600 persons were participated from 5 big cities including Seoul in Korea. Of those individuals, 48% were males, 52% were females, 50% of respondents reported that they had gone as far as college, and 38% were 20 years of age. Most percentage of respondents (72%) were not satisfied from their leisure behavior in their daily life, 60% of respondents had a chance to visit outdoor recreation areas per month. The most respondents(75%) didn't hear the concept of ecotourism, but they recognized necessity of the ecotourism development. There was a tendency in the sample for high disposition of ecotourism subjects to be more likely to intend to interest in environmental problems, and participate to environment movement. They were very interested in ecotourism. The differences existed in ecotourists' dispositions of ecotourism, according to their scio-economic characteristics. The potentional ecotourists' intentions of visiting eco-park had strong relationships with the disposition of ecotourism.

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General-purpose Transaction Management Technique for Data Stability of NoSQL on Distributed File System (분산 파일 시스템 기반 NoSQL의 데이터 안정성을 위한 범용 트랜잭션 관리 기법)

  • Kwon, Younghyun;Yun, Do-hyun;Park, Hojin
    • Journal of Digital Contents Society
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    • v.16 no.2
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    • pp.299-306
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    • 2015
  • In this paper, we research to secure stability of data storing/searching on NoSQL implemented on Distributed File System. When implementing NoSQL on Distributed File System, we faced that random write on Distributed File System is almost impossible. To solve this problem, a concept of Intermediate-File was employed, and then it has been achieved that our system resist any failure circumstance. Additionally, since we discovered its performance cannot be as fast as general File System, by redefining the file block unit for our NoSQL system, we have prevented a slowdown in system performance. As a result, we are able to develop highly scalable NoSQL as Distributed File System, which fulfills basic conditions of transaction: Atomicity, Consistency, Isolation, and Performance.

Discrimination of Private Property Right Protection in the U.S. Urban Regeneration Projects: A Perspective of Legal Geography (미국 도시재생사업과 사유재산권 보호의 차별 - 법제지리학의 관점 -)

  • Kim, Yong-Chang
    • Journal of the Korean Geographical Society
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    • v.47 no.2
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    • pp.245-267
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    • 2012
  • This paper analyzes the discrimination of private property right protection in urban regeneration projects that is implemented by eminent domain based on public use in the United States. In spite of urban regeneration projects which depends on property condemnation for public use as a coercive power, it is executed on the discrimination of property right and sacrifice of the social disadvantages that transfer property from these private party to another big capitals and private developers. At first this paper investigates research trends in urban regeneration within the framework of multidisciplinary approach and suggests legal geographical perspective as a new research field. Next I figure out current state, types and numbers of brownfields site with the EPA and GAO data, and define these sites as results of deindustrialization and suburbanization process. Finally this paper uncover that the discrimination process of private property right is due to complex actions of expansion of public use concept in the U.S. Supreme Court from public ownership to economic public use, privatization of eminent domain, growth coalition regime and business friendly policy focused on economic development, class and racial bias, neoliberal movements of property right reform.

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A study on Sik-jeok in Dong-ui-bo-gam (동의보감(東醫寶鑑)을 통한 식적(食積)에 대한 고찰)

  • Roh, Ju-hee;Lee, Jae-heung;Jang, Myeong-jun;Bae, Jae-ryong
    • Journal of Korean Medical Ki-Gong Academy
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    • v.11 no.1
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    • pp.173-197
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    • 2009
  • 1. The concept about Jeok-chwiui(積聚) has been around since before "Hwangje-Naegyeong". Since "Hwangje-Naegyeong(黃帝內經)", Sik-jeok(食積) was made mention of specifically. In "Yu-gyeong(類經)", it is said that Sik-jeok is a combination of our body fluid and blood by bad eating and sleeping habits. 2. In the narrow sense Sik-jeok is indigestion and broadly it is inappropriately stagnant fluids in our body. 3. If studying on Sik-jeok in Dong-ui-bo-gam 1) It is located on the right side, in the epigastric region and between the skin and fascia. 2) The cause of Sik-jeok is indigestion, inappropriate temperature and weak stomach. 3) Symptoms of Sik-jeok are very diverse such as sick ascension, nausea, abdominal pain, headache, fever, etc. The right pulse is big and stressful. 4) Various symptoms related to digestive, respiratory, circulatory and reproductive system are represented by Sik-jeok. - Contemporarily women uterine or ovarian disease and back pain are mostly caused by Sik-jeok 5) Pediatric disease are mostly caused by Sik-jeok. 6) Treatment of Sik-jeok is light eating and if it is serious, you have to induce vomiting or diarrhea. Commonly used drugs are digestive medicine and invigorative medicine 7) To prevent Sik-jeok, you should forbid to eat until you are satisfied and wear warm clothes and continue to do spleen and genital do-in-beop.

Introduction to supercritical CO2 power conversion system and its development status (초임계 CO2 발전시스템 소개 및 개발동향)

  • Lee, Jeong Ik;Ahn, Yoonhan;Cha, Jae Eun
    • The KSFM Journal of Fluid Machinery
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    • v.17 no.6
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    • pp.95-103
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    • 2014
  • During the international effort to develop the next generation nuclear reactor technologies, many new power cycle concepts were derived to improve efficiency and reduce the capital cost. Among many innovative power cycles, it was identified that the supercritical $CO_2$ (S-$CO_2$) Brayton cycle technology has a big potential to outperform the existing steam cycle and eventually replace it. The S-$CO_2$ cycle achieves high efficiency with very compact size, which is the ultimate advantage for a power cycle to have. The S-$CO_2$ cycle has a great potential not only for the future nuclear applications but also for general heat sources such as coal, natural gas, and concentrated solar. In this paper, a brief introduction to the S-$CO_2$ power cycle technologies will be first provided, and a short summary of current research and development status of the power cycle technology around the world will be followed. Especially the research works performed by KAIST, KAERI and several related research institutions in Korea will be reviewed in more detail, since they have recently developing a strong infrastructure to test these ideas by constructing a demonstration facility while producing many innovative ideas to improve and realize the concept.

Design for System Architecture of Multiple AVPs with Fail-safe based on Dynamic Network (Fail-safe를 적용한 다수 AVP 차량 및 아키텍처 설계)

  • Woo, Hoon-Je;Kim, Jae-Hwan;Sung, Kyung-Bok;Kim, Jung-Ha
    • Journal of Institute of Control, Robotics and Systems
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    • v.18 no.6
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    • pp.584-593
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    • 2012
  • This paper introduces an AVP (Automated Valet Parking) system which applies an autonomous driving concept into the current PAS (Parking Assistant System). The present commercial PAS technology is limited into vehicle. It means vehicle only senses and controls by and for itself to assist the parking. Therefore, the present PAS is restricted to simple parking events. But AVP includes wider parking events and planning because it uses infra-sensor network as well as vehicle sensor. For the realization of AVP, the commercial steering system of a compact vehicle was modified into steer-by-wire structure and various sensors like LRF (Long Range Finder) and camera were installed in a parking area. And local & global server decides where and when the vehicle can go and park in the testing area after recognized the status of environment and vehicle from those sensors. GPS solution was used to validate the AVP performance. More various parking situations, vehicles and obstacles will be considered in the next research stages based on these results. And we expect this AVP solution with more intelligent vehicles can be applied in a big parking lot like a market, an amusement park, etc.

Changes in Urban Scene Elements in the Pandemic (팬데믹 시대의 도시 씬 요소 변화)

  • Gu, Suna;Jang, Wonho
    • Journal of the Economic Geographical Society of Korea
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    • v.23 no.3
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    • pp.262-275
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    • 2020
  • Due to the pandemic caused by Corona 19, cities around the world have faced a change. As the global economic system weakens, localization is increasing in the product production and distribution system. In addition, consumption patterns have changed in urban where localization has been strengthened. As a result, the way physical places are consumed is also changing. Consumption of large multi-use facilities has drastically decreased, the speed of the collapse of the online and offline boundaries has been accelerated, and the consumption of amenities for sharing tastes has become more subdivided, specialized, and private. A big change also appeared in the urban scene, which is perceived as the concentration of urban amenities. Local scale and locality became important in the urban scene, and a new urban scene element called empathy emerged. Empathy aims to connect socially and emotionally to individuals consuming urban amenities. The pursuit of connectivity, taste consumption, and nostalgia. In this study, the space for cultural consumption based on empathy was named as empathetic space and the concept was explained. The importance of empathic space in the urban scene in the future post-corona situation was presented.

A Study of Image Making Features on Fashion Styles of K-pop Girl Groups (K-pop 걸 그룹의 패션에 나타난 이미지 연출 특성에 관한 분석)

  • Chung, Soha;Yoo, Youngsun
    • Journal of the Korean Society of Costume
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    • v.63 no.2
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    • pp.98-109
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    • 2013
  • This study aims to discuss the image making of K-pop girl groups to provide an outlook on the necessary fashion components in order to express certain concepts by analyzing the fashion styles. The fashion styles of the representative girl groups from 2007 to 2011 were classified into five types: retro style, schoolgirl style, chic style, sporty style and marine style. The following are the features and elements of image making by style. The retro style pursued going back to the past. It used stripes, dots, leopard patterns, spangles and denim. It reproduced the style of the past to the trendy style using big sunglasses, retro makeup, girlish hair and gold wigs. The schoolgirl style created the sexy or cute image by using school uniforms as the motif including shirts, short pants and knee socks. It included having natural makeup and straight hair and differentiated colors, patterns and designs. The chic style was classified into rock chic look and sexy look. Both looks had common elements including smoky pop active makeup while the fashion concepts and hair styles were different. The sporty style took the concept of cheer girls. It used plaid shirts, baseball jackets, short pants, thigh high boots, vivid hair accessories, romantic makeup and straight, wave hair. The marine style took the naval uniform as the motif. It expressed the image using short pants, stripe patterns, wappens, naval caps and smoky sexy makeup, straight hair. K-pop girl group fashion is the driving force for the growth of Korean fashion industry as well as its cultural trends and hope that it have a growing influence on the global market and trend through continuing research and support.

Analysis and Study on Invasion Threat and Security Measures for Smart Home Services in IoT Environment (사물인터넷 환경에서의 스마트홈 서비스 침해위협 분석 및 보안 대책 연구)

  • Lee, Myongyeal;Park, Jaepyo
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.16 no.5
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    • pp.27-32
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    • 2016
  • In general, IoT(Internet of things) designate the intelligence technologies and services which interact all necessity information between human and things, things and thing and things and systems with all things connecting through the internet based. The smart home in present of IoT environment fuses the daily supplies/equipment which needs to use for the private life with the internet of things that is the fruit of the converged business through all most private consumption related in vastly. The concept of smart home has been built around early 2000s due to the spread of high speed internet and advanced of smart electronics and internet, furthermore influencing by the enhancement of wireless network and smart devices, it is advanced as a smart home within the internet of things environment. Smart home service inside the house which most closely implemented with personal life is being developed and advanced in various forms. These developments may exert a positive effect, but if it does not resolve the security issues for the smart home service, then it may cause a big plague of privacy and personal life.

Enhancing the performance of taxi application based on in-memory data grid technology (In-memory data grid 기술을 활용한 택시 애플리케이션 성능 향상 기법 연구)

  • Choi, Chi-Hwan;Kim, Jin-Hyuk;Park, Min-Kyu;Kwon, Kaaen;Jung, Seung-Hyun;Nazareno, Franco;Cho, Wan-Sup
    • Journal of the Korean Data and Information Science Society
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    • v.26 no.5
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    • pp.1035-1045
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    • 2015
  • Recent studies in Big Data Analysis are showing promising results, utilizing the main memory for rapid data processing. In-memory computing technology can be highly advantageous when used with high-performing servers having tens of gigabytes of RAM with multi-core processors. The constraint in network in these infrastructure can be lessen by combining in-memory technology with distributed parallel processing. This paper discusses the research in the aforementioned concept applying to a test taxi hailing application without disregard to its underlying RDBMS structure. The application of IMDG technology in the application's backend API without restructuring the database schema yields 6 to 9 times increase in performance in data processing and throughput. Specifically, the change in throughput is very small even with increase in data load processing.