• Macromolecular Research
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• 제17권11호
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• pp.926-930
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• 2009

A new method for encapsulating nanomaterials within intermediary layer cross-linked (ILCL) polymeric micelles using a bifunctional photo-cross-linking agent was developed. For ILCL polymeric micelles, an amphiphilic triblock copolymer of poly(ethylene glycol)-b-poly(2-hydroxyethyl methacrylate)-b-poly(methyl methacrylate) (PEG-PHEMA-PMMA) was synthesized via consecutive atom transfer radical polymerization (ATRP), Di(4-hydroxyl benzophenone) dodecanedioate (BPD) was used as a bifunctional photo-cross-linking agent. The PMMA-tethered Au nanoparticles and BPD, or pyrene and BPD were encapsulated in the PEG-PHEMA-PMMA micelles, and their intermediary layers were photo-cross-linked by UV irradiation for 1 h. The HEMA units donated labile hydrogens to the excited-state benzophenone groups in BPD, and they were subsequently cross-linked by BPD through radical-radical combination. The spherical structures of the PEG-PHEMA-PMMA micelles containing the Au nanoparticles or pyrene were unaffected by the photo-cross-linking process.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2004년도 ICCAS
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• pp.1048-1052
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• 2004

In this work, we have investigated a role of linking parameter in Pulse-Coupled Neural Network(PCNN) which is suggested to explain the synchronous activities among neurons in the cat cortex. Then we have found a method to determine the linking parameter for a satisfactory face detection performance in a given color image. Face detection algorithm which uses the color information is independent on pose, size and obstruction of a face. But the use of color information encounters some problems arising from skin-tone color in the background, intensity variation within faces, and presence of random noise and so on. Depending on these conditions, PCNN's linking parameters should be selected an appropriate values. First we obtained the mean and variance of the skin-tone colors by experiments. Then, we introduced a preprocess that the pixel with a mean value of skin-tone colors has the highest level value (255) and the other pixels have values between 0 and 255 according to normal distribution with a variance. This preprocessing leads to an easy decision of the linking parameter of the Pulse-Coupled Neural Network. Through experiments, it is verified that the proposed method can improve the face detection performance compared to the existing methods.

• 한국콘텐츠학회논문지
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• 제8권1호
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• pp.195-202
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• 2008

식별체계를 활용한 참조연계 서비스가 해외는 물론 국내에서도 각 분야에서 본격적으로 활성화되고 있다. 국가 R&D정보는 국가 R&D사업의 과제, 참여인력, 연구개발 결과로 산출되는 성과, 연구 장비 등에 관한 정보이다. 전 부처의 모든 국가 R&D정보에 식별체계를 부여하고 과제와 관련된 성과, 과제의 참여 연구원 정보, 과제와 관련된 장비, 성과와 관련된 인력정보 등 정보간 관련 연계정보를 검색없이 바로 링크해서 볼 수 있도록 하는 참조연계서비스는 연구자들에게 매우 유용하다. 본 논문에서 개발한 식별체계 기반의 국가 R&D정보 참조연계서비스 시스템을 통해 국가 R&D정보의 동종 및 이종 정보간 정보연계를 더욱 활성화하는 계기가 될 것이다.

• Korean Membrane Journal
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• 제10권1호
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• pp.13-19
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• 2008

Water softening is a very promising field for membranes and especially ultra low pressure membranes. Nanofiltration membranes based on pore-filling technology was prepared by using a new technique: the in-situ cross-linking. This route involves introducing a pre-formed polymer into the pores of a host membrane and then locking the polymer in the pores by in-situ cross-linking with an appropriate reagent. By this way, it is possible to make robust and competitive, pore-filled, anion-exchange membranes with excellent control over the properties of the incorporated gel without affecting the host membrane. In this paper, the possibilities of tuning such membranes for ultra low pressure water softening was examined by altering pore-filling chemistry (by changing cross-linking and aminating reagents). The results showed that tuning the chemistry of the pore-filling has important effects. In particularly, it had been shown that the correct selection of cross-linking reagent was not only essential to get pore-filled membranes but it could control their properties. Moreover, the aminating reagent could improve membrane performance. It was found that an increase in hydrophobicity could improve the Darcy permeability.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1999년도 하계학술대회 논문집 G
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• pp.3249-3252
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• 1999

In this paper, we present the Tele-PACS of radiology, which uses the communication network as asymetric satellite data communication system. The asymetric satellite data communication system uses receive-only satellite links for data delivery and PSTN(Public Switched Telephone Network) modem or N-ISDN(Integrate Services Digital Network) for communication. The satellite communication linking shows the very high-speed performance than terrestial linking such as 28.8 kbps modem linking and 56Kbps linking. The satellite linking is 5 - 10 times faster than the 56Kbps linking. We conclude that 1) Satellite networking is currently the cheapest and fastest solution for internet access. 2) Web-based Image-Viewer enables small size hospitals in rural area to connect to central PACS easily and to retrieve the image data reliably. 3) The suggested teleradiology system using satellite networking could be adequate to fast telemedicine and telecare for rural hospitals especially located in geographically isolated areas such as islands.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2008년도 춘계 종합학술대회 논문집
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• pp.851-854
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• 2008

지식기반사회에서 국가경쟁력을 이끌 미래성장분야인 과학기반산업은 기술개발시 과학의존도가 높은 분야이며, 기술개발시 핵심 학술문헌에 대한 의존도가 절대적이다. 연구개발자들의 기술개발과 관련된 학술논문에 대한 요구와 링크서비스 기술의 발전은 유럽특허와 이 특허에 인용된 학술논문간 연계서비스를 가능하게 하였다. 이 논문은 유럽특허의 서치리포트에 수록된 과학논문을 이용하여 과학논문간 연계서비스를 구현한 사례를 기술하는데 목적이 있다. 해외에서 제공되는 특허와 문헌간연계서비스 현황을 살펴보고, 특허와 문헌간 원문연계서비스를 위해 필요한 데이터를 기술하며, 이종 콘텐트간 연계서비스의 구현사례를 기술한다.

• 말소리와 음성과학
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• 제13권1호
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• pp.17-24
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• 2021

In this study, listening errors by Korean EFL learners are comprehensively analyzed from self-paced passage dictation tasks. Fifty-five Korean EFL learners participated in the study. Listeners were asked to write down dictation passages as accurately as possible, while listening to the audio as much as they needed. The results show that (i) low-proficiency learners tend to misperceive longer phrases than high-proficiency learners, (ii) function words are more often omitted or misheard than content words, and (iii) low-proficiency learners have more difficulties with content words than high-proficiency learners do. Most frequent suffix errors were omissions of past or plural suffixes. Among the function words, the most frequent errors were found with auxiliary contractions, infinitive marker to, and articles, mostly in the environment of linking and elision. It is also shown that C-V linking, C-C linking, and elision are the primary sources for the most frequent errors. C-V linking led to errors in correctly locating the word boundary, while C-C linking and elision resulted in omission. These errors show that Korean EFL listeners have difficulties in detecting fine-grained phonetic details to the extent that native speakers can do.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2011년도 춘계학술발표대회
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• pp.1573-1575
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• 2011

KISTI는 CrossRef/DOI 기탁사업을 통해 학술정보생산자인 학회나 기관에게 해외유통망을 지원하는 사업을 해오고 있다. 그리고 DOI 기반의 학술논문간 인용정보 서비스인 Cited-by linking 결과를 과학 기술학회마을을 통해 논문의 인용횟수와 인용논문정보를 제공하고 있다. CrossRef에서 회원에게만 제공하는 Cited-by linking 결과를 분석해보면, KISTI에서 기탁하는 논문수가 증가함에 따라 인용논문수도 지속적으로 증가하고 있는 것을 볼 수 있다[1]. 이에 따라 Cited-by linking 결과를 학회나 기관이 쉽게 접근 할 수 있도록 KISTI 학술정보통합관리시스템에 적용하는 방안을 모색하고자 한다. 학회나 기관이 Cited-by linking결과에 쉽게 접근하여 각 학술지의 인용현황을 관리하고 그 결과 데이터를 활용하여 기존에 서비스되고 있는 정보 외에 필요한 정보를 획득할 수 있도록 지원하는 시스템이다.

• 정보과학회 논문지
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• 제44권8호
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• pp.813-821
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• 2017

개체 링킹은 입력된 질의에 존재하는 개체를 표현한 개체 표현(entity mention)을 지식베이스에 존재하는 개체와 연결하여 의미를 파악하는 연구이다. 개체 링킹에 관한 연구는 지식 베이스 구축 문제, 다중 표현 문제, 개체 연결 중의성 문제, NIL 개체 인식 문제가 존재한다. 본 연구에서는 지식 베이스 구축 문제와 다중 표현 문제를 해결하기 위해 위키피디아를 기반으로 개체 이름 사전을 구축한다, 또한, 문맥 유사도, 의미적 관련성, 단서 단어 점수, 개체 표현의 개체명 타입 유사도, 개체 이름 매칭 점수, 개체인기도 점수 자질들을 기반으로 SVM(support vector machine)을 학습하여, NIL 개체를 인식하는 문제와 개체 연결 중의성을 해소하는 방법을 제안한다. 구축한 지식 베이스를 기반으로 제안한 두 방법을 순차적으로 적용하였을 때 좋은 개체 링킹 성능을 얻었다. 개체 링킹 시스템의 성능은 NIL 개체 인식 성능이 83.66%, 중의성 해소 성능이 90.81%의 F1 점수를 보였다.

• 한국직업건강간호학회지
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• 제14권1호
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• pp.56-70
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• 2005

Objectives: The purpose of this study is to develop a linking model between industrial injury insurance organs and local organizations providing social welfare health services, for the activation of medical rehabilitation services for industrial injury patients. Method: Research design for this study was a multi-step research through literature review, field research, and group interviews with persons in charge, to compare local society-oriented medical rehabilitation programs. The term of researches Sep.1 ~ Nov. 30, 2004. Results: 1. Home nurses from Workers Accident Medical Corporation have been taken to be adequate to case managers, who link industrial accident insurance institutions to local society services for the activation of medical rehabilitation services for industrial injury patients. They have been chosen for case managers because they have richer understanding and experiences of objects of industrial accidents than any other specialists, and because they have proved to be able to provide direct home services as a specialist. We have established the center for case management affairs within the workers accident general hospital, organized the committee for case management with doctors in charge, doctors in rehabilitation, rehabilitation consultants, social welfare workers, physical therapists, and nurses, determined objects of case managements from those of long-term recuperation, and constructed a course of case management containing from case management plans to evaluation. 2. We have made files of community resources, and organized the council of industrial accident administration to have it in charge of the adjustment and linking of services in case management affairs. 3. Because there are inequality of community resources between areas, differences in experiences in and bases for linking, and disparity of core organizations with active linking in the system of linking between public and civil sectors, we have taken a system of linking between parallel organs to be the core. In our linking model, workers accident general hospital, hospitals designated for industrial injury, and rehabilitation hospitals are linked in parallel, inadequate long-term recuperation managers are trusted to an workers accident medical corporations through examination by the examination committee in Korea Labor Welfare Corporation, and are dealt with by the committee for case management. Of the hospitals designated for industrial accidents, those running a home caring center provide home caring services for the handicapped at home from industrial injury. 4. Workers Accident Medical Corporation take part in medical rehabilitation, and Korea Labor Welfare Corporation in vocational/social rehabilitation. Furthermore, in the model, the latter should construct a system for job opportunities through Internet portals and provide cyber vocational consultation and introduction. Conclusion: Improvement of systems is needed to apply the linking model to practical affairs. Because this model is centered for practical affairs, it should be put under the analysis of effects, and evaluation of its adequacy to practical application, and its effects and efficiency through experimental running in the 8 workers accident general hospital in Korea.