• Journal of the Korea Convergence Society
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• v.13 no.4
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• pp.53-61
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• 2022

Accidents are steadily occurring due to machine defects and carelessness during LNG storage operations. In previous studies, an environmental sensor module capable of measuring pressure, temperature, gas concentration, and flow to detect danger in advance was developed and the response speed according to the amount of leaked gas was measured. This paper proposes the development of a wired and wireless communication module that transmits data measured by the environmental sensor module to embedded devices connected to wired and wireless networks of SPI, UART, and LTE. First, a data communication module capable of interworking with an environmental sensor is designed. Design a protocol between devices in the Local Control Part and wired and wireless protocols in the Local Control Part and Remote Control Part. Ethernet, WiFi, and LTE communication modules were designed, and UART and SPI channels that can be linked with embedded controllers were designed. As a result, it was confirmed through a UI (User Interface) that each embedded device transmits data measured by the environmental sensor module while simultaneously communicating on a wired and wireless basis.

• Proceedings of the Korean Information Science Society Conference
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• 2001.04b
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• pp.442-444
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• 2001

공동작어에 참여 중인 작업자들은 공동작업 공간의 공유윈도우에서 텔리포인팅을 통해 공유객체를 추가, 변경 그리고 삭제하는 등의 작업을 행할 수 있다. 이대 작업자들은 공유객체에 대한 권한이 있어야 하면 텔리포인팅 시에 작업자의 공유객체엑세스 권한이 텔리포인터에 적용되어야 올바른 공동작업을 행할 수 있다. 본 논문은 텔리포인팅에 작업자의 공유객체액세스 권한을 적용하기 위한 텔리포인팅 모듈을 설계한다. 설계한 텔리포이팅 모듈은 기 연구된 RTP기반의 텔리포인팅 모듈에 공유객체액세스 권한관리모듈이 추가 확장된 구조이다.

• Proceedings of the Korea Information Processing Society Conference
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• 2006.05a
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• pp.203-206
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• 2006

Ada는 객체지향 특성과 소프트웨어 모듈화 및 일반화 메커니즘을 통해 프로그래밍 언어 차원에서 소프트웨어의 재사용성을 제공하고 있다. 그러나 특정 언어 자체를 이용하는 것만으로 소프트웨어의 재사용이 확보되지는 않으며 설계자가 컴포넌트간의 유기적인 관계를 파악하고 재사용을 통해 얻을 수 있는 장.단점을 판단할 수 있어야 한다. 본 논문은 재사용 가능한 소프트웨어 객체와 인터페이스를 식별하고 재사용 모듈의 설계에 필요한 요소들을 파악함과 동시에 소프트웨어 설계 시 적용할 수 있는 코딩 패턴을 제시한다. 또한 이들을 보다 효율적인 설계도구인 Statemate에서 재사용 모듈로 활용할 수 있도록 기존 generic chart의 한계를 고려한 확장 개념의 재사용 모듈을 작성한다.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.9 no.1
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• pp.135-146
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• 1999

Most public key cryptosystems are constructed based on a modular exponentiation, which is further decomposed into a series of modular multiplications. We design a new systolic array multiplier to speed up modular multiplication using Montgomery algorithm. This multiplier with simple circuit for each processing element will save about 14% logic gates of hardware and 20% execution time compared with previous one.

• Journal of Korean Society of Steel Construction
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• v.17 no.3 s.76
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• pp.337-346
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• 2005

A composite bridge deck system assembled from a modular profile with double-rectangular cell has been developed for highway bridges. This study is focused on the experimental characterization of flexure performance of pultruded GFRP deck under static loading. Several tests were conducted on single modules and adhesively bonded 2 and 5-modules. The specimen details such as dimensions, material properties and fiber architecture, and experimental set-up and testing procedure have been addressed. It is found that the presented GFRP composite modular deck is very efficient for use in bridges.

• Journal of KIISE:Software and Applications
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• v.31 no.10
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• pp.1364-1373
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• 2004

Recently Evolvable Hardware (EHW) is widely studied to design effective hardware circuits that can reconfigure themselves according to the environment. However, it is still difficult to apply for complicated circuits because the search space increases exponentially as the complexity of hardware increases. To remedy this problem, this paper proposes a method to evolve complex hardware with a modular approach. The comparative experiments of some digital circuits with the conventional evolutionary approach indicate that the proposed method yields from 50 times to 1,000 times faster evolution and more optimized hardware.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.50 no.1
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• pp.31-38
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• 2022

TR module using in satellite must consider discriminative electrical and mechanical requirements compare to the one using in ground and aircraft system since not only the environment level of vibration and shock during the launch stage but also the level of radiation, vacuum and thermal variation from orbit environment are more severe than atmosphere condition. This paper describes the environmental conditions of launch and the orbit and, suggests design method of TR module applying GaN to satisfy the unique environmental requirements of satellite systems by especially focusing on parts selection, derating design, RF budget design, manufacturing process design, and thermal design of TR module.

• The Journal of the Korea institute of electronic communication sciences
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• v.18 no.5
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• pp.945-952
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• 2023

In this paper, GRS chip driven JNI code application SW design based on Android platform was designed and fabricated as motion gesture frame module based on Android platform. The serial data reception module design proposed by the application-based network support API technology was designed with Android-based module design, Android-based module implementation, and Android-based function module implementation design. The data information of the sensor could be checked through Android applications such as classes of serial communication drivers, libraries, and frameworks for receiving data from wireless communication devices through Android OS applications. In addition, applications in Android implement application SW that can judge motion gestures in four directions using Java.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.12
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• pp.9-16
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• 2017

In this paper, the aerodynamic design process of wind turbine blades is established. The optimization design strategy is presented and the constraints that must be reviewed during the aerodynamic design process are summarized. Based on this, this study developed a BEMT-based aerodynamic optimal design program that can be applied easily to actual work, not only for research purposes, but also can be integrated from the initial concept design stage to the final 3D shape detail design stage. The developed program AeroDA consisted of a concept design module, basic design module, optimal TSR module, local shape optimization module, performance analysis module, design verification module, and 3D shape generation module. Using the developed program, an improved design of the 5MW blade by NREL was made, and it was confirmed that this program could be used for design optimization. In addition, a 10kW blade aerodynamic design and turbine detailed performance analysis were carried out, and it was verified by a comparison with the commercial program DNVGL Bladed.

• Proceedings of the Korean Information Science Society Conference
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• 2002.04a
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• pp.520-522
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• 2002

SoC 설계의 검증 비용이 전체 설계 비용의 70%를 차지한다. 이런 검증을 위한 노력과 시간을 줄이기 위해서는 SoC 설계 검증 수준을 시그널 수준 또는 사이클 수준에서 트랜잭션 수준으로 높여야 할 필요성이 있으며, 또한 그렇게 하는 것이 바람직하다. 이 논문은 IP의 인터페이스를 통해 수행되는 트랜잭션을 사이란 수준에서 기술하는 트랜잭션 중심의 인터페이스 기술 언어로부터 트랜잭션 모니터 모듈을 생성하는 방법을 제시한다. 트랜잭션 모니터모듈은 시뮬레이션을 통한 검증에 파형을 통한 결과의 관찰대신, 트랜잭션 단위의 결과의 관찰을 가능하게 함으로써 검증시간을 줄이는데 공헌할 것으로 기대된다.