• Journal of the Microelectronics and Packaging Society
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• v.23 no.2
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• pp.37-42
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• 2016

While datacenter operation cost increases with electricity price rise, many researchers study low-power processor based supercomputers to reduce power consumption of datacenters. Reliability of low-power processors for supercomputers can be of concern since the reliability of many low-power processors are assessed based on mobile use conditions. This paper assessed the reliability of low-power processor packages based on supercomputer use conditions. Temperature cycling was determined as a critical failure cause of low-power processor packages through literature surveys and failure mode, effect and criticality analysis. The package temperature was measured at multiple processor load conditions to examine the relationship between processor load and package temperature. A physics-of-failure reliability model associated with temperature cycling predicted the expected lifetime of low-power processors to be less than 3 years. Recommendations to improve the lifetime of low-power processors were presented based on the experimental results.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.30 no.8
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• pp.133-140
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• 2002

In this paper, the structure of integrated navigation computer for experiment is proposed. It is designed for considering the real time processing and data storage capacity. It will be used in missile, aircraft, submarine system and experimental vehicle. The I/O device supports IMU, GPS, odometer, altimeter, depth sensor, inclinometer etc. And the main storage device uses the tape device. That can improve the system stability. Therefore it can be used in a high dynamic or shock environment. The embedded linux is used as an Operating System. For the real time capability, sensor data processing and algorithm processing units are seperated. The time synchronization is referenced by IMU data.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.23 no.5
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• pp.35-40
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• 2023

In this paper, a serial wireless LAN virtual communication module that allows microprocessors to communicate wirelessly with other peripheral devices is developed as part of a study to build an online virtual experiment system that allows them to practice virtually anytime, anywhere in microprocessor application education in electrical and electronic control engineering. The developed module is connected to the microprocessor in the virtual experiment system through serial interface. The serial data is sent to and received from peripheral devices through the wireless LAN interface of the host computer where the virtual experiment software is being performed. In order to verify the function of the developed serial wireless LAN virtual communication module, experiments were conducted in which a microprocessor in the virtual experiment system exchanged data with an Android smartphone through a wireless LAN interface of a host computer. The developed serial wireless LAN communication module is expected to enable virtual microprocessors to communicate with surrounding real devices through wireless LAN, which can be efficiently used in microprocessor application education.

• Proceedings of the Korean Institute of Communication Sciences Conference
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• 1982.10a
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• pp.25-28
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• 1982

Automatic responding and message recording system is developed for subscriber telephon set using z-80 microcomputer. In addition, it has abbreviated dialing function using Hex key board to call simply.

• Journal of the Ergonomics Society of Korea
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• v.4 no.1
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• pp.3-6
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• 1985

This research developes a microcomputer program for MSD which is one of the most widely llsed predetermined time standards. The program is written in BASIC and designed mainly for desk-top or portable microcomputer to facilitate the development of standard times for time study analysis. A simple case is illustrated to show the program running procedure.

• Defense and Technology
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• no.8 s.246
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• pp.40-51
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• 1999

최근에 마이크로 프로세서를 비롯한 전자기술의 발달로 항공기에서도 컴퓨터를 중심으로 한 정보 시스템의 개발이 촉진되어 항공기 자체도 하나의 대형 정비 시스템으로 변모되고 있다. 이중에서 정비나 운용을 용이하게 하기 위해 개발중인 정보 시스템으로 기상 정비 시스템과 ELS(Electronic Library System)은 매우 흥미있는 분야이다

• 제어로봇시스템학회:학술대회논문집
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• 1986.10a
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• pp.633-636
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• 1986

We have developed an automated ECG interpretation technique by micro-computer for rapid analysis of ECG data in the clinical hospital. This system is consisted of 16 bit microcomputer including bandpass-filter, comparator, A/D converter in order to obtain the QRS width, R-R interval.

• Journal of Korean Society for Quality Management
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• v.13 no.1
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• pp.12-19
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• 1985

First of all, the necessity of statistical packages, and the strengths and weaknesses of microcomputers for statistical data ana!ysis are examined in this paper. Secondly, some statistical packages available for microcomputers in the international market are introduced, and the contents of two statistical packages developed by the author are presented.

• Proceedings of the Korean Institute of Communication Sciences Conference
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• 1984.04a
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• pp.63-65
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• 1984

A microcomputer network is designed and implemented for office automation in a small organization. It is a centrally controlled multidrop type, which connects many CP/M-baseed slave computers with a MP/M-based master computer.

• Proceedings of the KIEE Conference
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• 1987.07a
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• pp.307-310
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• 1987