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Voltage-Frequency-Island NoC를 위한 테이블 기반의 고장 감내 라우팅 기법
윤성재(Sung Jae Yoon),이창림(Chang-Lin Li),김용석(Yong Seok Kim),한태희(Tae Hee Han) 대한전자공학회 2016 전자공학회논문지 Vol.53 No.8
반도체 공정 초미세화에 따라 에이징 (aging)과 공정 변이 (process variation)로 인한 칩에서의 물리적인 결함은 더욱 증가하고 있으며, 특히 금속 배선 스케일링 제한과 온 칩 데이터 통신량 증가에 따라 다수의 프로세서 코어로 구성된 네트워크-온-칩(Network-on-Chip, NoC)에서의 결함 감내 기법 연구가 활발히 진행되고 있다. 그러나 NoC에서 저전력 설계 기법으로 널리 채용되고 있는 VFI (Voltage-Frequency-Island)를 적용한 경우에서의 신뢰성 측면에 대한 연구가 부족한 실정이다. 본 논문에서는 신뢰성과 에너지 소모를 고려하여 VFI NoC에서 링크 고장이 발생하는 경우에도 정상적으로 통신을 유지할 수 있는 테이블 기반 라우팅 기법을 제안한다. 에너지 소모와 성능을 고려한 최적 경로와 고장 감내를 위한 우회 경로를 제공하며, 이때 우회 경로의 경우 필요한 최소한의 노드에만 라우팅 테이블을 저장하여 구현 복잡도를 완화하였다. 모의실험 결과를 통해 제안하는 기법은 전체 링크의 1%에서 고장이 발생하는 경우에도 정상적으로 통신함을 보였다. 또한 실시간으로 우회 경로를 탐색하는 고장 감내 라우팅 기법인 d² -LBDR에 비해 링크에 고장이 발생하는 경우 평균 15.9%의 에너지 소모가 감소함을 보였으며, 실행 시간 측면에서는 평균 0.8% 감소하는 것을 확인 할 수 있었다. Due to aggressive scaling of device sizes and reduced noise margins, physical defects caused by aging and process variation are continuously increasing. Additionally, with scaling limitation of metal wire and the increasing of communication volume, fault tolerant method in manycore network-on-chip (NoC) has been actively researched. However, there are few researches investigating reliability in NoC with voltage-frequency-island (VFI) regime. In this paper, we propose a table-based routing technique that can communicate, even if link failures occur in the VFI NoC. The output port is alternatively selected between best and the detour routing path in order to improve reliability with minimized hardware cost. Experimental results show that the proposed method achieves full coverage within 1% faulty links. Compared to d²-LBDR that also considers a routing method for searching a detour path in real time, the proposed method, on average, produces 0.8% savings in execution time and 15.9% savings in energy consumption.
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윤성재(Yoon, Sung-Jae) 역사실학회 2015 역사와실학 Vol.56 No.-
Spoon is an essential tool for eating. It had been widely used on a daily life. However, all the tools are appear social characteristics of people who used these tools in pre-modern societies. Grave goods are emerged the social features and identity. I analyzed the bronze spoon in Gyeonggi area’s Koryo Dynasty tombs. Especially There was a change from the grave form in Koryo Dynasty. The corpse was leaved in the north and grave goods was reduced. But Bronzeware as like a Bronze mirror(銅鏡), Bronze bowl, was buried better than before. And porcelain was buried instead of earthenware. Specially grave goods was used things instead of new things Bronze spoon and chopsticks had buried from the late 11th century. Since the late 11th century, rich copper resources combined with processing technology of naturalized Khitan(契丹)’s people in Koryo Society. Bronzeware was a symbol of wealth to Koryo People, and was wanted to take to there grave. Since the 14th century bronze bowl was replaced with porcelain for grave goods. But bronze spoon still buried form 14th century to Joseon Dynasty.
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윤성재 ( Yoon Sung-jae ) 수선사학회 2018 史林 Vol.0 No.65
The tea office(茶房) is the government office that was in charge of making tea and herbal medicine used in the court. It was managed the tea for the banquet of foreign envoys and officials and the liquor and fruit for the royal family. It is not known when the tea office was installed, but it was already in existence in 1047. There was no tea office in “GoRyeoSa” ‘Servants’. It was installed based on the example of the Song`s DoChaBang(都茶房) but the operation was different. It was the responsibility of the official, not the eunuch. The medical functions of the tea office were well illustrated in “SinJipEoUiChwalYoBangSeo” written by Lee GyuBo(李奎報). According to the preface, that copy of it was a copy of a prescription collected from the tea office. There was already a tea room in a coffee shop, and although it was simple, it was used in the royal court of Goryeo and was very effective. So I chose some of the prescriptions that I thought were important to people, and made them into two volumes. There are the Royal Medical Organization, TaeUiGam(太醫監) and SangYakGuk(尙藥局), why did the tea office have the prescription and used it? The answer is in the word “Tea”. In Goryeo, tea was named for every beverage that was boiled like tea even without tea, and the tea office was used to make tea. Tea from the tea office was not just a drink, but a medicine for the health of the body or for the relief of simple physical discomfort. However, it was not for medical purposes and had a pharmacology effect as a permanent beverage. Therefore, there were prescription books in the tea office, and medical offices were placed. Based on this, Choi JongJun(崔宗峻) was able to compile “EoUiChwalYo”.
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윤성재(Yoon, Sung-jae) 한국역사연구회 2013 역사와 현실 Vol.- No.87
The Chuseok holiday of Korea originated from the Ga"bae(嘉排) holiday of the ancient Shilla dynasty. But there might be some problems in directly connecting the Chinese Jungchu(中秋) holiday, which was essentially a holy service for the moon, with the Shilla Ga"bae holiday. Ga"bae celebration first appeared during Shilla king Yu"ri-wang"s reign. For an entire month, under the lead of two female members from the royal family, who also served as female priests, civilian females were specially recruited from the Six Bu units, in order to support the royal priests. Two teams were formed, and continued "weaving"(the "Jeok"ma" ceremony) in a form of a contest, and after the competition was ended they would present such products to the holy spirits through a memorial service, which was called the "Bu"jeong-je(部庭祭)" service. We believe the Ga"bae celebration was a festival that followed such task and service. The participants consisted of the royal females who led the two teams, and the civilian females from the Six Bu units who formed two groups and competed with each other. We can say that the Ga"bae festival was in fact a female festival. The place for this event, which was referred to as "Dae"bu"ji-jeong(大部之庭)" was not an ordinary space. It was a place for a holy religious activity, and also a sacred place for the Bu"jeong-je service. But according to the "Memorial Services" chapter of 『Samguk Sagi』 , the Bu"jeong-je service was not considered as a Confucian-style memorial service held at the Dynastic shrine or the founder king"s mausoleum. And it seems it was also different from other Shilla-specific services too. It could have been a service that belonged to the category of Miscellaneous Services("Jab-sa, 雜祀"). If it was indeed a traditional, folklore-based service, then it must have been a customary ritual designed to serve the objective of the royal family through a spiritual act of communicating with God. So, a Shaman priest(巫覡) with a specialized talent in the area would have led the services sometimes as well. Not only the two royal family females who led the contest and the service, but also the other females who were drafted from the Six Bu units, might have been selected to become part of a larger priest group. They must have taken on a variety of roles, but mostly they would have been ordered to weave textile products which were to be used in the Bu"jeong-je service, or to make clothes for the holy spirits(神衣) and enshrine them. Interestingly, the object to be receiving the service, and the subject who was arranging the holy memorial service, usually were regarded as one, as it was the general perception that the holy spirit would come down and superimpose itself upon the priest who was offering the service. In other words, the holy spirit overseeing the task of weaving was a female god, and a female priest serving that female God was literally offering the results of weaving.
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시스템엔지니어링 기반의 스마트 안전관리 시스템설계: 작업자와 이동 장비를 중심으로
김형민,윤성재,홍대근,서석환,Kim, Hyoung Min,Yoon, Sung Jae,Hong, Dae Guen,Suh, Suk-Hwan 한국시스템엔지니어링학회 2015 시스템엔지니어링학술지 Vol.11 No.2
Industrial safety is one of the crucial agenda for Government as well as Manufacturing Industry. To cope with the needs, a great deal of policies and technical implementation have been proposed and implemented. With a great increasing attention on the Industry 4.0 and Smart Factory, industrial safety has received as a crucial agenda by the manufacturing industry in particular. Up until now, almost all of them have been made from the environmental aspects, rather than operator or workers. In this paper, we present our research results how to increase the workers' safety via smart factory technology, such as IoT and CPS. Our approach has been to see the problem from SE perspectives, to draw the real issues from the various stakeholders, and define how to solve the problem based on the emerging technologies. The developed systems can give conceptual framework for the 'smart' industrial safety system by providing solution architecture for how to monitor the location of workers, and moving equipments, and generate solutions how to avoid safety problems between them if detected.
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네트워크-온-칩에서 시간적 지역성을 고려한 End-to-End 적응적 오류 감내 기법
이영식(Young Sik Lee),윤성재(Sung Jae Yoon),한태희(Tae Hee Han) 대한전자공학회 2016 대한전자공학회 학술대회 Vol.2016 No.11
Driven by the aggressive scaling of modern IC technologies, network-on-chip (NoC) becomes increasingly susceptible to various noise sources. In this paper, adaptive error correction code injection scheme is represented to achieve both high reliability and low latency in various temperature condition. Simulation results show that the latency of proposed scheme is 50∼57% of the 2G4L code without(with smaller) reliability degradation.
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