• 한국정보과학회논문지:정보통신
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• 제34권5호
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• pp.405-422
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• 2007

최근 네트워크의 발전에 따라 홈 네트워크에도 많은 연구가 진행되고 있다. 현재 홈 네트워크에서는 각 디바이스별로 ACL을 이용하여 접근 제어 정책을 관리하는 방법이 가장 많이 사용되고 있고, EAM(Extranet access management)이 솔루션 형태로 응용되고 있으며, 보안 운영체제에 대한 연구가 공개 운영체제를 바탕으로 진행되고 있다. 또한 흠 서버 중심의 흠 네트워크 사용자 인증 메커니즘 등도 연구되고 있다. 그러나 이러한 연구들은 다음과 같은 문제점이 있다. 첫째, 홈 네트워크에서 사용될 것으로 예상되는 접속기술의 전송범위가 넓어 인증되지 않은 외부 단말기의 접속이 가능하고, 둘째, 사용자가 별도의 필요 정보를 일일이 디바이스에 설정할 필요가 있어 불편하다. 셋째, 사용자 프라이버시나 편의성을 고려하고 있지 않다. 이질적인 다양한 기술들이 존재하는 홈 네트워크 환경에서 OSGi는 상호운용성을 보장하는 서비스 플랫폼을 제공한다. 여기에서 사용자 접근제어는 위와 같은 문제점이 있어서는 안되는 홈 네트워크 보안의 핵심 분야 중에 하나지만 아직 구체적인 연구가 진행되고 있지 않다. 따라서 본 논문에서는 OSGi 서비스 플랫폼이 운영되는 홈 네트워크 환경에서 사용자 접근제어를 위한 RBAC 기반의 권한부여 정책 관리 프레임워크와 접근제어 운영방법을 제안한다. 제시된 접근제어 프레임워크는 OSGi 표준에서 명확하게 언급되지 않았던 부분들을 고려사항으로 나열하고, 이 문제들을 해결하는 방법들을 프레임워크로 제안한다. 제안하는 프레임워크에서는 홈 게이트웨이의 제한된 자원에 대해 RBAC의 개념을 이용하여 사용자 접근제어에 대한 정책변경의 횟수를 줄이는 효율적이고 경제적인 운영 방법을 제시한다. 또한 본 논문에서 제안하는 정책은 사용자역할정책과 권한할당정책을 개별적으로 정의한 후 사용자 정보를 댁내에서 결정함으로써, 사용자 편의성을 높여주고 프라이버시 문제를 해결하도록 방안을 제시한다.

• Clinical and Experimental Reproductive Medicine
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• 제48권4호
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• pp.311-315
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• 2021

Objective: As clinicians and patients await consensus on intraovarian platelet-rich plasma (PRP) treatment, this project evaluated contemporary research trends in the literature. Methods: A PubMed/NLM search aggregated all ovarian PRP-related publications (n=54) to evaluate their scope, abstract utility, submission-to-publication interval, journal selected, article processing charge (APC), free reader access to full-text manuscripts, number and nationality of authors, and inclusion of international collaborators. The NIH Clinical Trials database was also audited. Results: Published output on intraovarian PRP has increased consistently since 2016, especially among investigators in Greece, Iran, USA, and Turkey. Between 2013 and 2021, 42 articles met the relevancy criteria, of which 40.5% reported clinical studies, small series, or case reports, 33% described experimental animal models, and 23.8% were opinion/review papers. Only two works included a placebo control group. The submission-to-publication interval (mean±standard deviation) was 130±96 days, there were 5.9±3.2 authors per project, and journals invoiced US $1,613±1,466 (range, $0-$3,860) for APCs. Conclusion: There was no correlation between APC and time to publish (Pearson's r=-0.01). Abstract content was inconsistent; sample size and patient age were often missing, yet free full-text "open access" was available for most publications (59.5%). The NIH Clinical Trials portal lists eight registered studies on "ovarian rejuvenation," of which two are actively recruiting patients, while four have been terminated or have an uncertain status. Two studies have concluded, with results from one posted to the NIH website. PRP and its derivatives for ovarian treatment show early promise, but require further investigation. Research is accelerating and should be encouraged, particularly placebo-controlled randomized clinical trials.

• 복식
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• 제52권7호
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• pp.71-85
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• 2002

The purpose of this study is (1) to research on the diverse evaluation criteria suggested in the existing literatures, selected the contents of the evaluation according to the evaluation factors, and examined whether they are appropriate for the evaluation of websites that offer Clothing and Ornament related information through reliability analysis - all to set the evaluation criteria for the websites that acquire data. In addition. (2) contents of evaluation which are deemed important by the users and developers were compared and recommended as the detailed evaluation contents according to evaluation factors. The results of this study were as follows. 1. The evaluation factors for the fashion websites that provide Clothing and Ornament related information were selected as follows: contents of the information(11 contents of evaluation), ease of use(12), screen design(10), accessibility(9), sensitive enjoyment(4), scope of information use(3), purpose(1), and target user(1). As result of reliability analysis. Cronbach's a contents of the information (0.76), ease of use (0.77), screen design (0.85), accessibility (0.81), sensitive enjoyment (0.71), and scope of information use (0.52). 2. When the level of importance for the detailed evaluation contents was examined from the user and developer point of view, recency of information. rapid speed for the websites access. fast loading of webtext and fast transmission speed topped the list as first, second and third places.

• 보건행정학회지
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• 제32권3호
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• pp.317-322
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• 2022

Background: Limited access to medical services causes problems in patients' health and life. Also, hospital closures cause concentration towards general hospitals, which leads to worsening National Health Insurance finance. Therefore, hospital closure is an important topic to be analyzed. Methods: This paper analyzed the factors that affect hospital closures using survival analysis with the data of 970 hospitals opened between 2010 and 2019 in Korea. The number of medical personnel, hospital rooms, sickbeds, and medical departments were used as explanatory variables. Results: The number of medical personnel and hospital rooms increased the survival probability while the number of sickbeds and medical departments decrease the survival probability. Conclusion: The results suggest that hospitals have economies of scale and diseconomies of scope in management.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2005년도 Proceedings of ISRS 2005
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• pp.237-240
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• 2005

Calibration and Validation are major element of any space borne Earth Observation Mission. These activities are the major objective of the commissioning phases but routine activities shall be maintained during the whole mission in order to maintain the quality of the product delivered to the users or at least to fully characterise the evolution with time of the product quality. With the launch of ERS-l in 1991, the European Space Agency decided to put in place a group dedicated to these activities, along with the daily monitoring of the product quality for anomaly detection and algorithm evolution. These four elements are all strongly linked together. Today this group is fully responsible for the monitoring of two ESA missions, ERS-2 and Envisat, for a total of 12 instruments of various types, preparing itself for the Earth Explorer series of five. other satellites (Cryosat, Goce, SMOS, ADM-Aeolus, Swarm) and at various levels in past and future Third Party Missions such as Landsat, J-ERS, ALOS and KOMPSAT. The Joint proposal by the European Union and the European Space Agency for a 'Global Monitoring for Environment and Security' project (GMES), triggers a review of the scope of these activities in a much wider framework than the handling of single missions with specific tools, methods and activities. Because of the global objective of this proposal, it is necessary to put in place Multi-Mission Calibration and Validation systems and procedures. GMES Calibration and Validation activities will rely on multi source data access, interoperability, long-term data preservation, and definition standards to facilitate the above objectives. The scope of this presentation is to give an overview of the current Calibration and Validation activities at ESA, and the planned evolution in the context of GMES.

• 정보관리학회지
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• 제34권3호
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• pp.7-21
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• 2017

본 연구에서는 국립중앙도서관 링크드 데이터를 대상으로 인물 정보가 표현되고 연계되는 방식을 분석하고, 이를 확장하기 위한 방안을 제안하였다. 분석 결과, 저자로서의 인물 정보는 링크드 데이터에서도 인물을 표현하는 어휘와 연계되어 기술되고 있는 반면에, 주제로 표현된 인물은 개념으로만 취급되고 있었다. 또한 링크드 데이터 구축과정에서 기존의 전거 정보를 변환한 것 외에는 별도의 부가 정보를 추가했는지를 확인할 수 없었다. 이에 본 연구에서는 저자로서의 인물 정보뿐 아니라 주제로서의 인물 정보도 서지 정보에 포함시키고, 저자로서의 인물정보와 주제로서의 인물 정보를 연계할 때 링크드 데이터의 품질을 제고할 수 있다고 판단하였다. 그리고 이와 더불어 인물과 관련된 부가 링크 정보를 함께 구축하고 이를 활용하여 서지데이터 검색의 접근점을 확장하는 방안도 함께 제안하였다.

• Journal of Information Processing Systems
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• 제13권4호
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• pp.653-667
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• 2017

The significant advances in information and communication technologies are changing the process of how information is accessed. The internet is a very important source of information and it influences the development of other media. Furthermore, the growth of digital content is a big problem for academic digital libraries, so that similar tools can be applied in this scope to provide users with access to the information. Given the importance of this, we have reviewed and analyzed several proposals that improve the processes of disseminating information in these university digital libraries and that promote access to information of interest. These proposals manage to adapt a user's access to information according to his or her needs and preferences. As seen in the literature one of the techniques with the best results, is the application of recommender systems. These are tools whose objective is to evaluate and filter the vast amount of digital information that is accessible online in order to help users in their processes of accessing information. In particular, we are focused on the analysis of the fuzzy linguistic recommender systems (i.e., recommender systems that use fuzzy linguistic modeling tools to manage the user's preferences and the uncertainty of the system in a qualitative way). Thus, in this work, we analyzed some proposals based on fuzzy linguistic recommender systems to help researchers, students, and teachers access resources of interest and thus, improve and complement the services provided by academic digital libraries.

• The Journal of Asian Finance, Economics and Business
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• 제7권6호
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• pp.47-59
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• 2020

This paper intends to explore the relationship between financial inclusion and financial stability under the scope of Asian economies. The linkage will be thoroughly investigated with country-level and bank-level data of 42 countries in three separate years: 2011, 2014, and 2017. In this study, an inclusive financial system is assessed by two dimensions: usage of financial services and access to the financial system. Usage of financial services ranges from account to credit, savings and payment services. Access to financial system measures the financial outreach where individuals can use financial services. Meanwhile, financial stability, which proxied by Bank Z-score is regarded as the dependent variable. We apply fixed effects regression and random effects regression to capture the impacts of financial inclusion upon financial stability. To enhance the robustness of the model, the Feasible Generalized Least Squares (FGLS) regression is therefore adopted as the solution for the random effects regression. The empirical findings exhibit an overall weak positive influence of financial inclusion on financial stability. The research results also provide both financial institutions and governments with insightful information, which helps them to have an appropriate financial development strategy, improve the regulatory framework and consequently enhance financial stability for the whole system.

• Asian Pacific Journal of Cancer Prevention
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• 제14권8호
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• pp.4939-4942
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• 2013

The absolute necessity of cancer registration for cancer control planning is well accepted. The registry at the national or local level can provide not only essential data for cancer incidence, mortality and survival but may also point to risk and protective factors and efficacy of interventions by conducting epidemiological research. Timely publication of research findings in PubMed indexed journals is of the essence, especially in examples that allow free access so that the widest dissemination of information can be achieved. The present commentary covers the scope of research in Asia or using Asian data the period 2008-2013, nearly 40% of a total of over 300 papers being published in the APJCP. In order to reach its full potential the registry should incorporate many skills. Cooperation for this purpose, whether it be national, regional, Asia-wide or international, is a high priority and the International Agency for Research on Cancer, together with the National Cancer Institute in Thailand and the APOCP/APJCP are staging an Asian Cancer Network Forum in Bangkok in February of 2014 to allow discussion of ways forward. It is hoped that representatives from all regions of Asia will decide to attend and a l so contribute country reports for publication in a special supplement of the APJCP.

• 인터넷정보학회논문지
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• 제9권1호
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• pp.179-186
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• 2008

콘텐츠나 데이터 중심의 입력 인터페이스가 점차 확대되는 방향으로 웹응용이 진화하고 있다. 이용자는 웹사이트 보다는 사이트에 저장된 서비스와 정보에 더 관심이 많다. 콘텐츠 중심의 연산을 효과적으로 구현하기 위하여, 도메인 개념의 범위를 두 가지 방향에서 확장하였다. 자원단위의 접근에 적합한 이름구조를 제안하였고, 도메인의 의미는 다양한 함수의 영역이 되도록 허용하였다. 불필요한 최상위 확장자를 제거함으로써 자원을 위한 도메인으로서의 효율성을 높였으며 또한 호스트에 대한 독립성을 가진 도메인의 가능성을 열었다. 다양한 기능의 응용이 적어도 개념적으로는 중간 매개체를 거치지 않고 도메인에 의해서 직접 호출 될 수 있다. 본 논문에서 제시한 도메인의 확장 개념은 인터넷진화에 새로운 토대가 될 수 있는 기술적 변화를 예상할 수 있다.