• Journal of Dental Rehabilitation and Applied Science
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• v.28 no.1
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• pp.67-78
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• 2012

The purpose of this study was to determine whether there were differences in shear bond strength to human dentin using IDS technique compared with DDS. Forty freshly extracted human molars were and devided into 4 groups. The control group specimens were, on the morrow of tooth preparation, light-cured after application of dentin bonding agent and cemented with resin cement. The IDS/SE(immediate dentin sealing, Clearfil$^{TM}$ SE Bond) and IDS/SB (immediate dentin sealing, Adapter$^{TM}$ Single Bond 2) specimens were, on the morrow of tooth preparation, light-cured after application of dentin bonding agent(Clearfil$^{TM}$ SE Bond and Adapter$^{TM}$ Sing Bond 2, respectively), whereas DDS specimens were not treated with any dentin bonding agent. IDS/SE, IDS/SB and DDS specimens were thermocycled. Following that delay, specimens were cemented with resin cement. The dentin bonding agent was left unpolymerized until the application of porcelain restoration. Shear bond strengths were measured using a universal testing machine. Specimens also were evaluated for mode of fracture using an optical microscope. The mean shear bond strengths of control group and IDS/SE groups were not statistically different from one another. The bond strength of IDS/SE group had a significantly higher mean than that of DDS group. There was no significant difference in the mean shear bond strength between IDS/SB(4.11MPa) and DDS group. The evaluation of failure modes indicates that most failures in the control group and IDS/SE groups were mixed, whereas failures in the DDS group were interfacial. When preparing teeth for indirect ceramic restoration, IDS with Clearfil$^{TM}$ SE Bond results in improved shear bond strength compared with DDS.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.8 no.5
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• pp.65-71
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• 2008

Recently, the research is progressing on the SWE(Sensor Web Enablement) platform of OGC(Open Geospatial Consortium) to provide the sensing data and moving pictures collected in a sensor network through the Internet Web. However, existed research does not deal with moving objects like cars, trains, ships, and person. Therefore, we present a method to deal with integrated sensing data collected by GPS device, sensor network, and image devices. Also, this paper proposes an integrated processing method for image and sensing data based on location in mobile sensor networks. Additionally, according to proposed methods, we design and implement the combine adapter. This combine adapter receives a contexts data, and provides the common interface included parsing, queueing, creating unified message function. We verity the proposed method which deal with the integrated sensing data based on combine adapter efficiently. Therefore, the research is expected to help the development of a various context information service based on location in future.

• Proceedings of the KIPE Conference
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• 2001.12a
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• pp.124-128
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• 2001

In this paper, a high-efficiency double-ended active clamp ZVS forward converter is proposed. This converter can be used in compact size AC/DC converter applications such as a notebook adapter. The principles of operation are described and the zero voltage switching characteristics are analyzed. High efficiency of this converter is verified by the experimental results.

• Proceedings of the Korean Institute of Communication Sciences Conference
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• 2006.07a
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• pp.355-355
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• 2006

• Proceedings of the IEEK Conference
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• 2003.11a
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• pp.115-118
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• 2003

In this paper we implemented a field-sequential stereoscopic endoscope system that can generate stereoscopic images with different perspective depth using LCD stutter. Re stereoscopic image is generated from stereoscopic adapter that has LCD shutter. We have compared the stereoscopic depth of a field-sequential stereoscopic endoscope system with that of the conventional endoscope system. And the implemented system is verified by evaluation the field-sequential stereoscopic image on a Monitor. This system will be use to medical instruments in time.

• Electronics and Telecommunications Trends
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• v.14 no.4 s.58
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• pp.129-130
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• 1999

N-ISDN의 대중화 및 활성화를 위해서 연구 개발한 회선 및 패킷 통신 기능을 지원하는 N-ISDN 접속용 PC 카드로서, NT(Network Terminator)및 TA(Terminal Adapter) 기능을 하며, PC에서 다중 통신이 가능하도록 한다. 음성 통화중 다양한 ISDN 서비스를 이용 가능하도록 하며, 64kbps로 인터넷 접속을 할 수 있다. 또한 전용선 없이 ISDN을 통해 64kbps로 패킷망에 접속하여 데이터 통신이 가능하도록 하는 등 협대역 ISDN 통신 기능을 지원한다.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 1996.06b
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• pp.95-100
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• 1996

User's qualities of services (QoS) are the basic requirements involved in distributed multimedia systems. Considering ATM network, ATM adapter cannot control the end-to-end connection satisfying the user's QoS. This paper describes the new concept of a QoS prediction management system in the distributed network and the configuration of it's QoS prediction management architecture and also discusses it's algorithm.

• Proceedings of the Optical Society of Korea Conference
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• 2003.02a
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• pp.162-163
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• 2003

광 집적회로를 설계하는데 있어서 Y-형 분배기는 광에너지를 분배 혹은 결합시키는 중요한 역할을 한다. 그러나 이 소자는 분기 부분에서의 큰 손실과 공정상에서의 두 분기사이를 식각하는 것은 쉽지 않다는 단점을 갖고 있다. Y-형 분배기와 더불어 광신호의 분리와 결합에 있어서 널리 사용되는 MMI 분배기 소자는효율적인 분배 기능을 유도하기 위해서 MMI 내에 모드수가 많아져야 하는데, 이런 방식의 모드 수의 증가를 유도하기에는 MMI-길이와 폭에 제한을 받게 된다. (중략)

• Proceedings of the Korean Information Science Society Conference
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• 1998.10b
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• pp.632-634
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• 1998

기존의 객체기술은 재사용성과 유지보수 측면에서 많은 문제를 안고 있다. 해결책으로 여러 가지가 제시되었으나 그 중 객체지향 프레임웍을 기반으로 하여 시스템의 복잡도와 급증하는 크기 그리고 개방형 시스템의 구축 시에 발생하는 여러 가지 난제를 해결하고자 하였다. 그러나 프레임웍 연구는, 대부분 컴포넌트나 객체단위의 재사용성을 극대화하는데 초점이 맞추어져 있어서 소프트웨어의 유연성(flexibility)에 관한 문제는 별로 다루어지지 않고 있는 것이 현실이다. 따라서 본 논문은 소프트웨어 시스템 아키텍쳐 수준에서와 유지보수 차원의 유연성을 확보하는 방안으로 '핫 스팟 어댑터 모델'을 제안하고자 한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2018.10a
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• pp.87-88
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• 2018

PCIe 스위칭 기술을 이용하면 시스템 내부의 디바이스들의 연결을 넘어 노드간 통신에도 PCIe 버스를 활용할 수 있다. 이때 기존의 확장 케이블이 갖는 물리적인 한계를 극복하기 위하여 광통신을 활용하는 경우가 있다. 본 연구에서는 초소형 온 보드형 광모듈을 활용하여 자체 제작한 PCIe 어댑터카드의 NTB(Non-Transparent Bridging) 포트를 활용하여 노드간 통신을 수행한 결과를 소개한다.