• 대한약침학회지
• /
• 제22권3호
• /
• pp.160-165
• /
• 2019

Objectives: The aim of this study was to evaluate the effect of Ribes khorasanicum (R. khorasanicum); a plant growing in north Khorasan of Iran; on cardiovascular and stress oxidative in acute hypertension induced by N-nitro-l-arginine methyl ester (L-NAME), anitric oxide synthase inhibitor. Methods: Rats were divided into Control, L-NAME (10 mg/kg), Sodium Nitroprusside (SNP) (50 mg/kg) + L-NAME and three treated groups with R. khorasanicum (4, 12 and 24 mg/kg) groups + L-NAME. L-NAME and SNP were injected intravenously and extract intraperitoneal. In R. khorasanicum groups, L-NAME was injected 30 min after injection of the extract. Systolic blood pressure (SBP), mean arterial pressure (MAP) and heart rate (HR) were recorded continuously using power lab software. At the end of study oxidative stress parameters including of total thiol content (SH), malondialdehyde (MDA), superoxide dismutase (SOD) and catalase (CAT) in heart and aorta of all groups were also measured. Results: In groups 4 and 24 mg/kg extract +L-NAME, there was a non-significant decrease in SBP and MAP compared to L-NAME group but dose 12 mg/kg significantly attenuate the effect of L-NAME(P < 0.05). In L-NAME group the heart and aorta tissues antioxidant enzymes levels decreased, while in treated rats these enzymes significantly increased. Conclusion: The extract of R. khorasanicum in dose 12 mg/kg show anti-hypertensive effect that is mediated by an effect on NO system or antioxidant parameters.

• 한국멀티미디어학회논문지
• /
• 제15권9호
• /
• pp.1126-1132
• /
• 2012

네트워크 효율성을 개선하기 위해 CCN은 콘텐츠 제공자로부터 사용자에게 콘텐츠가 전송될 때 중간 네트워크 노드들이 전송되는 콘텐츠를 임시 저장할 수 있다고 가정한다. 또한, 네트워크 노드들이 임시 저장된 콘텐츠에 대한 요청을 수신하면, 해당 요청 메시지를 콘텐츠 제공자에게 전송하지 않고 임시 저장된 콘텐츠를 사용자들에게 전송 한다. 이와 같은 네트워킹 기술을 구현하기 위해 CCN은 계층화된 콘텐츠 이름을 이용하여 요청 메시지와 응답 메시지의 네트워크 전송 경로를 관리한다. 그러나 계층화된 콘텐츠 이름이 콘텐츠 자체에 대한 정보뿐만 아니라 도메인/제공자 정보도 의미론적으로 내포하고 있기 때문에, 콘텐츠 이름을 이용한 사용자/제공자 사생활 침해가 가능하다는 문제점을 갖고 있다. 본 논문에서는 CCN 콘텐츠 이름의 프라이버시 문제점 및 제안된 기술들을 살펴보고, 프라이버시 보호를 위한 개선된 CCN 콘텐츠 이름 관리 방안을 제안한다.

• 한국식생활문화학회지
• /
• 제37권5호
• /
• pp.418-428
• /
• 2022

Research on the birth (起源) and names (語源) of foods such as kimchi is important to understand traditional food culture. kimchi, an 'add flavored, fermented, pickled, vegetable food' was initially prepared with the simple purpose of increasing storage capabilities, but later, through a complex process of change, morphological diversification occurred. In addition to the basic name of 'kimchi', each variety has its unique name and history. This study was conducted through qualitative research using various research methods, such as oral records and interviews, as well as investigation of data from literature, including ancient literature, modern cookbooks, newspapers, magazines, papers, and videos. The study sought to investigate the context and the meaning of the name Chonggak kimchi. In addition, it is a compilation of how the name spread through the ages and evolved to its current name. The name Chonggak kimchi did not exist during the Joseon Dynasty and Japanese occupation and first appeared in the records in the late 1950s. Nevertheless, the original name of 'Altarimu kimchi' evolved and finally became a part of the standard Korean language (標準語) in 1988. In the process of the name spreading and becoming popular, the movie "Chonggak kimchi (1964)," starring Shin, S.I., and Eom, A.R. played a significant role. It was also confirmed that this was a meaningful and valuable case of contentization of traditional food culture, regardless of the intention behind the same.

• International Journal of Knowledge Content Development & Technology
• /
• 제2권2호
• /
• pp.17-29
• /
• 2012

All academic information on the web or elsewhere has its creator, that is, a subject who has created the information. The subject can be an individual, a group, or an institution, and can be a nation depending on the nature of the relevant information. Most information is composed of a title, an author, and contents. An essay which is under the academic information category has metadata including a title, an author, keyword, abstract, data about publication, place of publication, ISSN, and the like. A patent has metadata including the title, an applicant, an inventor, an attorney, IPC, number of application, and claims of the invention. Most web-based academic information services enable users to search the information by processing the meta-information. An important element is to search information by using the author field which corresponds to a personal name. This study suggests a method of efficient indexing and using the adjacent operation result ranking algorithm to which phrase search-based boosting elements are applied, and thus improving the accuracy of the search results of personal names. It also describes a method for providing the results of searching co-authors and related researchers in searching personal names. This method can be effectively applied to providing accurate and additional search results in the academic information services.

• 건축역사연구
• /
• 제27권3호
• /
• pp.59-72
• /
• 2018

The detailed names and meanings of Korean stone pagodas have not yet been properly studied or clearly defined. Therefore, an aim of this report is to compare the detailed names of Korean, Chinese, and Japanese stone pagodas by focusing on content used previously by Ko and his students and content that is currently in use (i.e., since the Japanese colonial era). Additional objectives are to assess the significance of these names and propose an appropriate detailed draft regarding names of stone pagodas. The discussion will proceed by dividing the stone pagoda into three parts: the podium, main structure, and finial. First, the content in Luo Zhewen(羅哲文)'s "Ancient pagodas in China(中國古塔)" (1985) is considered; then, "朝鮮の石塔" (1943)-published by during the Japanese colonial era-is explored. The thesis written by Yu-Seop Ko regarding Korea's first stone pagoda and the content in "A Study of Korean Pagodas(朝鮮塔婆의 硏究)" (1948), which contains Yu-Seop Ko's posthumous works published in book form by his student Su-Yeong Hwang, Heu-Kyoung Kim are examined. to pagodas that are used today, are compared and reviewed. Since Korea, China, and Japan influence each other, pagoda-related terms are shared to some extent. In this study, these were applied to stone pagodas, and names used thus far that have not drawn criticism were studied and proposed as suitable alternatives.

• 한국전자통신학회논문지
• /
• 제16권6호
• /
• pp.1113-1120
• /
• 2021

콘텐츠 중심 네트워크(CCN)은 기존 위치(IP) 기반의 네트워크 방식을 콘텐츠 이름(Content Name) 중심의 네트워크 구조로 변모시킴으로써 네트워크 전반의 효율성을 높이고자 하는 시도이다. CCN에서는 네트워크 효율을 높이기 위해 라우터 저장공간을 활용한 캐싱을 수행하는데, 캐시 교체정책은 CCN의 전반적인 성능을 좌우하는 중요한 요소이다. 따라서 CCN 분야에서는 캐시 교체정책과 관련된 많은 선행 연구가 있었다. 본 논문에서는 CCN 기본 캐시 교체정책인 LFU를 개선한 실시간 생성자 인기도 기반의 캐시 교체정책을 제안하였다. 또한, 실험을 통해 제안한 캐시 교체정책이 대조군보다 우수함을 입증하였다.

• Journal of information and communication convergence engineering
• /
• 제18권1호
• /
• pp.22-27
• /
• 2020

Content centric networking (CCN) is regarded as promising internet architecture because it can provide network efficiency in terms of bandwidth consumption by separating contents from a specific network location and decrease network congestion events. However, the application of a CCN does not widely consider the side effects of mobile devices, particularly mobile content sources. For content source mobility, a full routing update is required. Therefore, in this study, a route optimization scheme is proposed for mobile content sources in a CCN environment to provide low communication overhead, short download time, and low resource consumption. The proposed scheme establishes a direct path between content requesters and a mobile content source for the exchange of interest and data packets using interest-piggybacked data packets. Based on the inherent CCN naming characteristics, the content source does not know the name prefix of the content consumer, and thus the proposed optimized CCN scheme utilizes the content router in the home domain of the content source.

• 암석학회지
• /
• 제27권2호
• /
• pp.105-108
• /
• 2018

부산시교육청 동래교육지원청 관내 초등학교 60개, 중학교 34개, 고등학교 28개 등 모두 122개 학교를 대상으로 2017년 3월부터 2018년 6월까지 16개월 동안 학교 교재원으로서의 암석원을 현장 방문으로 조사하였다. 암석원이 조성된 학교는 122개 학교 중 29.51%인 36개였으며 초등학교는 40.0%, 중등학교(중학교, 고등학교)는 18.18%가 설치되어 있었다. 조사항목은 암석원 암석표본이 교육과정과 관련되는가? 표본 이름이 맞는가? 설명판 내용이 적합한가?로 초등학교의 경우 교육과정과의 관련성이 평균 36.7%, 표본 이름이 맞는지는 평균 55.1%, 설명판 내용이 알맞은지는 평균 55.5%로 나타났다. 중등학교는 교육과정과의 관련성이 평균 83.9%, 표본 이름이 맞는지는 평균 82.8%, 설명판의 내용이 알맞은지는 평균 84.1%로 학교급이 올라갈수록 높게 나타났다.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• 제14권7호
• /
• pp.2904-2918
• /
• 2020

With a huge demand for replicated content on the Internet, a new networking paradigm called information-centric networking (ICN) has been introduced for efficient content dissemination. In ICN, named content is distributed over the network cache and it is accessed by name instead of a location identifier. These aspects allow users to retrieve content from any of the nodes having replicas, and consequently 1) network resources are more efficiently utilized by avoiding redundant transmission and 2) more scalable services are provided by distributing server loads. However, in-network caching in ICN brings about a new type of security issues, called content poisoning attacks, where fabricated content is located in the network cache and interferes with the normal behavior of the system. In this paper, we look into the problems of content poisoning in ICN and discuss security architectures against them. In particular, we reconsider the state-of-the-art schemes from the perspective of feasibility, and propose a practical security architecture.

• 한국콘텐츠학회논문지
• /
• 제10권2호
• /
• pp.490-498
• /
• 2010

웹이든 웹이 아니든 존재하는 모든 학술정보에는 창작자, 즉 그 정보를 생산한 주체가 존재한다. 그 주체는 개인, 단체, 기관이 될 수 있으며 또는 해당 정보의 성격에 따라 국가가 될 수도 있다. 대부분의 정보는 제목과 저자, 내용으로 구성된다. 학술정보 가운데 논문의 경우 제목, 저자, 키워드, 요약, 발행일, 발행처, ISSN 등의 메타정보로 기술되며, 특허의 경우는 명칭, 출원인, 발명자, 대리인, IPC, 출원번호, 청구항등의 메타정보로 표현된다. 대부분의 웹 기반의 학술정보 서비스에서는 이들 메타정보를 가공 및 처리하여 사용자들에게 검색기능을 제공하며, 특히 인명에 해당하는 저자필드를 이용한 검색기능은 중요한 요소이다. 본 논문에서는 인명검색을 위한 효율적인 색인운영과 구검색 기반의 부스팅 요소를 적용한 인접연산 결과 랭킹 알고리즘을 이용해 인명검색 결과의 정확성 개선 방법을 제안하며, 인명검색시 공저자 및 관련연구자 검색결과를 제공하는 방법을 설명한다. 이는 학술정보서비스에 있어서 정확하고 부가적인 검색결과를 제공하는데 효과적으로 적용될 수 있다.