• 대한전기학회:학술대회논문집
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• 대한전기학회 2002년도 하계학술대회 논문집 B
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• pp.1376-1378
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• 2002

Compare and examined Full Auto Line of PV module Manufacture Equipment and PV module Manufacture Equipment in the Korea. Full Auto Line has been constructed with Cell Selection. Tabbing & Stringing. Module Setting, Lamination, Curing and Module Testing, and Module Manufacture Line in the Korea has been constructed with Tabbing & Stringing. Module Setting, Lamination and Module Testing. Laminator's temperature Control is the most important Variable in Manufacture of PV module. Temperature Transformation of Center part of PV module is most high at Lamination, and Edge part is most low.

• 대한수학회보
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• 제20권1호
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• pp.31-36
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• 1983

Let R be a commutative ring with 1, and A a unitary commutative R-algebra. By a derivation module of A, we mean a pair (M, d), where M is an A-module and d: A.rarw.M and R-derivation, i.e., d is an R-linear mapping such that d(ab)=a)db)+b(da). A derivation module homomorphism f:(M,d).rarw.(N, .delta.) is an A-homomorphism f:M.rarw.N such that f.d=.delta.. A derivation module of A, (U, d), there exists a unique derivation module homomorphism f:(U, d).rarw.(M,.delta.). In fact, a universal derivation module of A exists in the category of derivation modules of A, and is unique up to unique derivation module isomorphisms [2, pp. 101]. When (U,d) is a universal derivation module of R-algebra A, the A-module U is denoted by U(A/R). For out convenience, U(A/R) will also be called a universal derivation module of A, and d the R-derivation corresponding to U(A/R).

• 신재생에너지
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• 제4권4호
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• pp.17-22
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• 2008

A low concentrating (< 5X) photovoltaic module with aluminum reflectors is fabricated and evaluated which is designed to reduce the affection of the high temperature to the solar cell modules preventing the efficiency lowering. As results, the output power is increased of 1.97X from the concentrating photovoltaic module which is designed with the concentrating ratio of 2.25X and to control the module temperature cooling the module by air circulation. Also, the effect of the concentrating module with aluminum reflectors on the conventional PV module is investigated at the field. The result shows the increase of the output power more than about 20% and the improvement of the module efficiency of 1.4X in spite of the increase of average module temperature.

• 대한전기학회논문지:전력기술부문A
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• 제48권11호
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• pp.1410-1416
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• 1999

This paper aims at investigating the operating-mode characteristics of two-module Thyristor Controlled Series Compensator (TCSC) as an equivalent of the multi-module TCSC in a simple three-phase power transmission system. The load flow program is developed to analyze the steady-state characteristics of two-module TCSC system and to find the thyristor firing angles for the required real power flow. The stability calculation program is developed with Poincare mapping theory. Simulation studies of the TCSC power transmission system using EMTP are performed to evaluate the transient characteristics of two-module TCSC as a real power flow controller and to rpove the results of the load flow calculation and the stability analysis. In the process of the study, the operating-mode characteristics of two-module TCSC are evaluated and compared to those of single-module TCSC.

• 정보처리학회논문지D
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• 제9D권5호
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• pp.931-938
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• 2002

본 논문은 웹 시스템 환경에서 안전한 데이터 전송을 만족하는 Protocol-Based Security Module 구조의 제안과 이를 구현한 내용에 대해서 언급한다. Protocol-Based Security Module 구조는 크게 두 개의 모듈로 구현된다. 하나는 웹 서버에서 동작하는 Web Server Security Module이고, 다른 하나는 클라이언트에서 동작하는 Winsock Client Security Module 이다. 웹 서버 보안 모듈은 암호된 메시지를 클라이언트에게 전송하고 클라이언트 보안 모듈은 서버로부터 받은 암호화된 메시지를 정상적인 메시지로 변환하여 웹 브라우저에 나타나게 한다. 웹 서버 보안 모듈은 HTML 파일에 대한 암호화 기능과 클라이언트 모듈에서 보낸 암호화된 메시지를 복호화하는 기능을 가지고 있다. 본 논문에서 제안하는 보안 구조는 클라이언트와 서버간에 간단한 모듈의 설치로 안전한 데이터 전송을 보장한다. 본 논문에서 제안하는 클라이언트, 서버 모듈의 구현 내용을 실험하였다.

• 한국태양에너지학회 논문집
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• 제29권6호
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• pp.88-93
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• 2009

This study was conducted to improve the power of PV module using a surface cooling system One of the unique characteristics of PV module is power drop as a module surface temperature increases due to the characteristics of crystalline silicon used in a solar cell. To overcome the output power reduction by temperature effect, module surface cooling using water circulation was performed. By cooling effect, module surface temperature drops maximally $20.3^{\circ}C$ predicting more than 10% power enhancement. Maximum deviation of voltage and current between a control and cooled module differed by 5.1 V and O.9A respectively. The maximum power enhancement by cooling system was 12.4% compared with a control module. In addition, cooling system can wash the module surface by water circulation so that extra power up of PV module can be achieved by removing particles on the surface which interfere solar radiation on the cells. Cooling system, besides, can reduce the maintenance cost and prevent accidents as a safety precaution while cleaning works. This system can be applied to the existing photovoltaic power generation facilities without any difficulties as well.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2003년도 춘계학술대회 논문집 디스플레이 광소자분야
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• pp.198-202
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• 2003

Tunable laser diode module with 50GHz-spacing internal wavelength locker was developed. Angle tilting dependency on FSR and peak wavelength shift and the proper initial tilting angle was calculated. By tilting the etalon, the response of the internal wavelength locker module was tuned. As a result, the fabricated internal wavelength locker module showed good performance over 62 channels.

• 한국자동차공학회논문집
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• 제19권6호
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• pp.61-67
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• 2011

The cooling module needs enough space (or distance) from hood to absorb the energy from any pedestrian collision. Downsized cooling module for pedestrian protection is important to reduce the severity of pedestrian injury. When a vehicle collision happens, the downsized cooling module is required to reduce the risk of injury to the upper legs of adults and the heads of children. In this study, the performance of cooling module to cool the engine was investigated under 25% height reduction. The heat dissipation and pressure drop characteristics have been experimentally studied with the variation of coolant flow rate, air inlet velocity and A/C operation ON/OFF for the downsized cooling module. The results indicated that the cooling performance was about 94% level compared to that of the conventional cooling module. Therefore, we checked that the cooling module had good performance, and expected that the cooling module could meet the same cooling performance as conventional cooling module through optimization of components efficiency.

• 공업화학
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• 제8권6호
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• pp.1034-1040
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• 1997

전기자동차의 동력원으로 사용되는 90Ah급 Nickel/Metal hydride 전지 11개로 구성된 module의 온도특성을 상용 software인 NISA II를 사용하여 해석하였다. 전지 module에 대한 element수를 감축하기 위하여 열전도도가 다른 여러 층을 통하여 전달되는 열흐름에 대한 해석을 전기저항 등가식을 사용하여 단순화하였으며, Cartesian coordinate의 축별로 다른 열전도도를 삽입하는 orthotropic model을 사용하였다. 전지 module의 온도를 낮추기 위하여 알루미늄 재질의 cooling fin을 전지와 전지사이에 삽입하여 실험을 수행하였고, 전지 module 최외곽에 위치한 fin에 의한 최고온도의 강하 효과는 미미하다는 결과를 얻었다. 전지 module내 전지별 온도차이를 극소화하기 위하여 cooling fin의 개수와 두께 그리고 측면 fin의 복합적인 영향에 대한 실험을 수행하였으며, 1mm 두께의 알루미늄 fin을 4개 사용하여 module내 전지별 최고온도의 차이를 $3^{\circ}C$ 이내로 줄일 수 있었다.

• 한국정보과학회논문지:정보통신
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• 제29권6호
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• pp.635-644
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• 2002

본 논문은 웹 시스템 환경에서 안전한 데이타 전송을 만족하는 Protocol-Based Security Module(PBSM) 구조를 제안한다. PBSM 구조는 크게 두개의 모듈로 구성된다. 하나는 웹 서버에서 동작하는 Web Server Sorority Module(WSSM)이고, 다른 하나는 클라이언트에서 동작하는 Winsock Client Security Module(WSCSM)이다. WSCSM 보안 모듈은 WSSM으로부터 받은 암호된 메시지를 정상적인 메시지로 변환하여 웹 브라우저에 나타나게 한다. WSSM 보안 모듈은 HTML 파일에 대한 암호화(Encryption)기능과 WSCSM 모듈로부터 받은 Common Gateway Interface(CGI) 데이타에 대한 복호화 기능을 가지고 있다. PBSM 보안 시스템의 보안 정확성을 검증하기 위하여 정형화 분석 기법을 이용했다.