• 한국경영과학회:학술대회논문집
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• 대한산업공학회/한국경영과학회 2004년도 춘계공동학술대회 논문집
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• pp.714-717
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• 2004

In this paper, we describe issues related to standardized interaction among companies that are in the environments of heterogeneous information systems. The interaction method is detailed based on BPEL4WS, which is XML based standard specification. This paper provides method of interoperability using web service, which is considered a new information system paradigm. The method has importance in that it enables to exchange data in a platform independent manner. This paper deals with a method of interaction among heterogeneous information system based on BPEL4WS standard. The concepts of interoperability, XML, and workflow are introduced. The standards and previous research results related to interoperability are also provided. It describes brief introduction of BPEL4WS specification and its technical details. Integrated business process using BPEL4WS and interoperability issues are also included..

• 한국가구학회지
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• 제19권3호
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• pp.172-179
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• 2008

The objective of this study was to investigate the influence of the water repellents' treatment on the water absorptivity and the dimensional stability of Korean red pine wood(Pinus densiflora). The alkylketene dimer(AKD), fluororesin emulsion(Wood-seal, WS), and paraffin wax emulsions(PW25, PW40, and PW1200) were used as water repellents. PW40 and WS were proved as excellent water repellents for pine wood, because the samples treated with these agents showed high contact angles and large reduction in water absorptivities. Also, the dimensional stability(antiswelling efficiency) of pine wood was considerably improved by water repellents treatments, such as PW40 and WS at the pressure of 2MPa. The water repellent treated woods with WS, PW40, and PW1200 at the pressure of 2MPa were relatively stable to the wet-dry cyclic leaching test.

• Transactions on Control, Automation and Systems Engineering
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• 제3권2호
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• pp.71-76
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• 2001

This paper deals with an estimation method for sideslip angle by using an unknown disturbance observation technique in 4WS passenger car systems. Firstly, a 4WS vehicle model with 3DOF is derived under the constant velocity and same tyres properties. The vehicle dynamics is transformed into the linear state space model with considering the external disturbances. Secondly, and unknown disturbance observer is introduced and its property which estimating the states of system without any disturbance information is shown. Lastly, the estimated sideslip angle of the 4WS vehicle system is verified through numerical simulation.

• Journal of Ginseng Research
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• 제22권3호
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• pp.193-199
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• 1998

The purpose of this study was to Investigate characteristics of the water soluble browning reaction products (WS-BRPs) from Korean red ginseng by heat treatment. Absorbance of WS- BRPs was increased with increases of heating temperature and time, but pH value were decreased In Muter color value L and b value were decreased, while a value was increased. and absorbance at 280 nm in spectrum of the WS-BRPs was increased according to the increase of heating temperature. When the WS-BRPs were applied on Bio-Gel P-30 column after heating and pH treatment, two majors browning products increased according to the progress on time. And pH 3.0 increased in quantity of high molecular fractions and pH 8.0 increased in quantity of low molecular fractions.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2000년도 제15차 학술회의논문집
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• pp.476-476
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• 2000

This paper deals with an estimation method far sideslip angle by using an unknown input observation technique in 4WS passenger car systems. Firstly, a 4WS vehicle model with 3DOP is derived under the constant velocity and same tyre's properties. The induced model is transformed into the linear state space model with considering the external disturbance. Secondly, an unknown input observer is introduced and its property which estimating the states of system without any disturbance information is shown. Lastly, the estimated sideslip angle of the 4WS system is verified through numerical simulation.

• 한국정보과학회:학술대회논문집
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• 한국정보과학회 2005년도 가을 학술발표논문집 Vol.32 No.2 (2)
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• pp.94-96
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• 2005

지금까지 비즈니스 프로세스 관리에 대한 다양한 연구 활동들이 수행되어 왔지만, 아직까지 범용적인 비즈니스 프로세스 언어 표준이 규정되어 있지 않은 상태이다. 본 연구에서는 대표적인 비즈니스 프로세스 언어들(BPEL4WS, BPML, WSCI, WS-CDL, BPSS 등)의 비교 분석을 통해, 협업 비즈니스 환경에서 비즈니스 프로세스 언어가 가져야 할 필수 요소들을 제안한다. 비즈니스 프로세스 언어의 비교는 세 단계로 구성된다. 첫째, 비즈니스 프로세스를 구성하는 애플리케이션에 따라 조직 내외의 비즈니스 프로세스를 비교한다. 둘째, 협업 비즈니스 프로세스의 모델링 절차에 따라 절차에 필요한 필수 비즈니스 엔터티를 제안한다. 마지막으로, 추출된 필수 비즈니스 엔터티를 이용하여 다양한 비즈니스 프로세스 언어들 사이의 특징을 비교 분석한다.

• 한국전자거래학회:학술대회논문집
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• 한국전자거래학회 2003년도 종합학술대회 논문집
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• pp.236-241
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• 2003

비즈니스 협업을 위한 방법들 중에서 메시지 교환을 통한 loosely coupled integration이 선호되고 있는 추세에서, 이를 위한 방법으로 최근에 각광받고 있는 기술이 웹서비스이다. 웹서비스를 확장한 협업표준들이 제안되고 있는데, 본 연구에서는 동적인 웹서비스 운용을 위한 WSCI, BPEL4WS, BPML 등을 비교 분석하고자 한다.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2006년도 하계종합학술대회
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• pp.625-626
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• 2006

An Ultra low power super-regenerative oscillator was implemented with on-chip inductor and quench signal generator. The super-regenerative oscillator detects the signal level as low as -70dBm while consuming only 0.48mA at 1.5V supply voltage. These results indicate that the super-regenerative oscillator can be outstanding candidate the simple, ultra low power receiver design.

• 산업공학
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• 제13권4호
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• pp.668-679
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• 2000

Recently, due to the primary emphasis of environmental problem, the proper selection of the prevention technology systems necessary for Dioxin treatment has been one of the critical issues in the industrial sector. This paper shows how an Analytic Hierarchy Process(AHP) model can be used for assessing the performance of selected prevention technology systems: SDA/BF-SCR, SNCR-SDA/BF, SDA/BF, EP-WS-SCR, ED-WS, and EP-SCR-WS essential for Dioxin treatments. The final results show that SNCR-SDA/BF is the most attractive prevention technology system to use in an incinerator system, followed by SDA/BF-SCR, SDA/BF and EP-WS-SCR. This is consistent with the information that we found with respect to the elements that were taken into consideration. Sensitivity analysis is also provided here.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2011년도 추계학술대회
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• pp.85-87
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• 2011

WPS_WS는 무선 AP의 정보를 통해 현재 이동 객체의 위치를 찾는 시스템이다. 실외 및 실내의 AP 신호 세기 특징을 활용하여 현재 위치를 판단하며 이를 위해 AP 정보를 저장하기 위한 Radio Map구축이 선행되어야 한다. 최초 서비스를 위하여 map을 구성하더라도 실외의 경우 AP신호의 가변성에 의해 구축된 DB의 map 정보를 100% 신뢰할 수 없다. 따라서 신호세기의 변동을 감지하여 능동적으로 map 정보를 변경해 줄 필요가 있다. 본 논문은 이동객체가 현재의 위치를 판단하기 위해 수집한 AP의 정보 중 오류 정보들을 저장하여 분석하고 이를 토대로 구축된 MAP을 실시간으로 변경 및 수정하여 AP의 신호 변경에 능동적으로 대처할 수 있는 Radio Map 최적화 모듈에 대하여 제안한다.