Diverter Assembly 구성품 소재의 건전성 평가

김형익(Hyung-ick Kim),이소연(Soyeon Lee),이동률(Dongryul Lee),김보현(Bohyun Kim),장석수(Suksoo Jang),김민규(Minkyu Kim),김영주(Youngju Kim),우남섭(Namsub Woo) 대한기계학회 2018 대한기계학회 춘추학술대회 Vol.2018 No.5

재구성 가능한 Coprocessor의 context controller 및 응용 알고리즘 Scheduling 방법

김정은,김남섭,김진상,조원경 경희-다반 ASIC 설계교육센터 2005 경희-다반 ASIC센터 논문집 Vol.6 No.-

다양한 DSP 알고리즘 및 통신 알고리즘의 고속 연산을 위해서는 알고리즘을 처리할 진용 ASIC 칩이 필요하다. 그러나 ASIC을 이용한 시스템은 프로그래밍 능력이 떨어지며, 경우에 따라 많은 수의 칩으로 구성되어 하드웨어 비용 및 소비전력이 증가한다. 이와 같은 문제점은 재구성 가능한 하드웨어를 이응하여 해결할 수 있다. 대부분의 DSP 알고리즘이 MAC(Multiplication and accvrnulation) 연산으로 이루어져 있어, 곱심기가 필요하지만, 곱셈기는 많은 하드웨어 resovrce를 차지하므로 DA(Distributed Arithmetic) 구조의 곱셈기가 없는 새로운 Coarse-grain 16 bit의 동적 재구성 가능한 하드웨어 구조를 제안한다. 제안된 하드웨어에 DSP 알고리즘 중 가장 일반적인 행렬의 곱셈, BMA(Block Matching Algorithm), 16 -tap FIR filter를 효라적으로 적용 시켰다.

LIN controller의 설계 및 prototyping

김다위,조규형,김남섭,김진상,조원경 경희-다반 ASIC 설계교육센터 2005 경희-다반 ASIC센터 논문집 Vol.6 No.-

본 논문은 분포된 여러 제어 시스템들을 효과적으로 연결시켜주는 시리얼 버스 프로토콜인 LIN(Local Interconnect Network)의 ASIC 구현 및 검증 방법을 제안한다. LIN 프로토콜은 기존의 CAN 프로토콜이 사용되는 시스템에서 충분한 신뢰성 및 편리한 Diagnostic, Configuration 특성을 통해 시스템내의 제어용 서브버스 프로토콜로써 CAN을 보완하고 low cost로써 설계가 가능하다. low cost 및 버스오류 처리가 가능한 LIN controller의 설계를 위해 본 논문에서는 전체 Architecture를 기능 블록으로 세분화하여 Logic Sharing이 가능하게 하였으며 버스오류 처리기능을 포함하였다. 본 논문의 검증 모델은 3개의 LIN node로 구성되었으며, 시뮬레이터를 사용하여 기능 검증을 수행하였고 real time operation을 검증하기 위해 FPGA prototyping을 하였다.

소련과 냉전: Vladislav M. Zubok, A Failed Empire: The Soviet Union in the Cold War From Stalin to Gorbachev, 2nd ed.(Chapel Hill, NC: The University of North Carolina Press, 2009)의 비판적 검토

김남섭 ( Namsub Kim ) 한국서양사연구회(구 서울대학교 서양사연구회) 2016 서양사연구 Vol.0 No.55

This paper aims to do a critical review on A Failed Empire, one of the recent works of Vladislav M. Zubok, which has been much admired by the specialist and generalists alike as a challenging account of the Soviet side of the Cold War. The book has many strengths as an overview of Soviet foreign policy. In particular, it stands out clearly in using widely various archives, memoirs, interviews and available published primary sources, although Zubok has attempted to write a comprehensive history that spans the entire period of the Cold War. Moreover, the author made many efforts to explain the history of the Soviet Cold War through an impressive theoretical framework, which is called `the revolutionary-imperial paradigm.` According to him, the postwar Soviet leadership through the era of Brezhnev failed to achieve peaceful settlements with America, another superpower, by firmly having kept this paradigm. However, Gorbachev, the last Soviet leader, rejected it flatly, presenting `New Thinking` as an alternative diplomatic principle in international relations, and as a result, the animosity and confrontation between two superpowers ended without much bloodshed. On the other hand, the book reveals several weaknesses. Zubok often misinterprets materials in supporting his arguments and tends to ignore important theses by other scholars, not analysing closely. Furthermore, he overemphasizes the role of ideas, in particular, of Soviet leaders when they behaved in the international arena. For example, Zubok gives too much value to Brezhnev`s belief in peace, when he tries to examine his detente. Likewise, Zubok argues that `New Thinking` of Gorbachev played a decisive role in ending the Cold War. Such an analysis by the author resulted frequently in downplaying the structural limitations, such as political, military and economic difficulties on the domestic and international levels, which, sometimes, the Soviet leaders as an individual politician hardly could get over. Moreover, Zubok does not discuss in earnest social and cultural dimensions of the Soviet side of the Cold War. Particularly, he almost failed to examine the Cold War experiences of the Soviet grassroots. For better work, he should have considered more carefully how the international developments affected the Soviet general public and, in turn, how they responded to the Cold War policies of the Soviet governments. (Seoul National University of Science & Technology/namsubkim@ seoultech.ac.kr)

PPG 측정 장치에서의 온도 영향에 대한 연구

김남섭(Namsub Kim) 한국정보전자통신기술학회 2019 한국정보전자통신기술학회논문지 Vol.12 No.3

본 논문에서는 사전 연구로 제작된 손목시계형태의 반사형과 투과형 PPG 측정 장치의 온도 변화에 대한 특성을 고찰하였다. PPG는 신체의 온도 변화에 따라 그래프의 모양이 영향을 받게 되는데 본 논문에서는 신체의 온도 변화가 아닌 측정 장비의 온도 변화에 따른 영향을 고찰하였다. 실험은 기존에 제작된 장치의 마이크로 컨트롤러의 내부 온도를 측정하면서 내부 온도 변화에 따른 PPG의 변화를 관찰하였다. 실험 결과, 사용된 마이크로 컨트롤러의 동작 시간에 따라 온도는 무리함수의 그래프 형태로 변화하였으며 온도 상승에 따라 투과형 측정 장치는 온도에 영향을 받지 않았으나 반사형 측정 장치는 PPG 측정 결과에 변화가 발생함을 확인하였다. This paper presents the temperature dependence of transmission-type and reflection-type PPG measurement devices that have been developed in the previous research. PPG signal can be distorted by external temperature such as skin temperature so that many of research was focused on the skin temperature effect. However, this paper focuses on the temperature of the device itself and we studied on the effect of device internal temperature. Experimental results showed that the temperature was increased like an irrational function graph and the transmission-type was not affected by the internal temperature but the reflection-type was affected by the internal temperature.

[러시아] 더 많이 더 다양하게 쓰기

김남섭(Kim, Namsub) 역사학회 2015 역사학보 Vol.0 No.227

This paper aims to analyze the articles and books about Russian history published in 2013~2014 in South Korea. During two years 75 research articles, 21 books including translations, and 5 reviews were get out. It means that the amount of literary publications of Russian history increased considerably, comparing to that of 2011~2012, although number of scholars working on that field stayed almost unchanged. Moreover, the topics that they dealt with became more various. They cover very diverse aspects of Russian history such as politics, economy, society and culture from medieval Russia to contemporary post-Soviet countries. The quantitative expansion, however, does not ensure qualitative improvements. It is very difficult to find monographs written in Korean language which focus on the specific themes about Russian history. Seemingly, many of the published literatures prove only to introduce discussions and arguments from Russian and Western scholars or at most to add some opinions to them. All this appears to come from their relative negligence of archival and primary sources, when authors wrote articles and books. It is now necessary to pay closer attention to them so as to produce more creative literatures about Russian history.

고르바쵸프 혁명과 스딸린 체제: 글라스노스찌 시대의 역사 다시 쓰기

김남섭 ( Namsub Kim ) 서울대학교 인문학연구원 2005 人文論叢 Vol.54 No.-

2-D DCT Using Multiplierless Reconfigurable Arithmetic Arrays

JeongEun Kim,SangKyu Lee,Namsub Kim,Won-Kyung Cho,Jinsang Kim 대한전자공학회 2005 ITC-CSCC :International Technical Conference on Ci Vol.2005 No.1

컴포지트 비디오 디코더를 위한 웨이블릿 기반 3차원 콤 필터의 설계

김남섭(Namsub Kim),조원경(Wonkyung Cho) 한국멀티미디어학회 2006 멀티미디어학회논문지 Vol.9 No.5

스탈린 대테러의 배경과 원인에 관한 재고찰

김남섭 ( Namsub Kim ) 한국서양사연구회 2017 서양사연구 Vol.0 No.57

This article aims to give a progress report of the academic studies about Stalin’s Great Terror in 1936-38, particularly its causes, by doing a critical review on The Anatomy of Terror: Political Violence under Stalin, edited by James Harris in 2013. Although many Western historians have written a lot of serious books and articles about Stalin’s Great Terror since 1960s, there is still no consensus among them on why Stalin killed almost seven hundred thousand Soviet elites and ordinary people in only two years. Fifteen authors in The Anatomy of Terror also present various explanations about this question. We can divide their sixteen contributions into three categories according to types of the terror’s causes which they emphasize. Firstly, some scholars stress ‘excisionary violence’, ‘Chekist mentalite’ and intelligence and threat ‘misperception’ as long-term preconditions of the Great Terror. The second group of authors proposes Kirov murder, historical origins of mass repressions and conflicts among political police, civil police and judiciary as mid-term causes. The last group considers fear and anxiety of the provincial party leaders about the impending Soviet elections, participation of the masses in the process of purges and Stalin’s personal mental illness as immediate short-term evens or situations which triggered off the terror. However, in my view, all contributors failed to offer a comprehensive explanation about reasons for Stalin’s Great Terror. In order to explain the terror’s causes more plausibly, we have to consider additionally Khlevniuk and Kuromiya’s consistent arguments that the international political and military crisis in mid-1930s in Europe and Asia brought about within Stalin’s leadership the need for prior elimination of ‘the fifth-column’ as a preventive war. (Seoul National University of Science and Technology/namsubkim@seoultech.ac.kr)