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갑상선 수술의 해부학적 지표로서의 Zuckerkandl 결절의 중요성
윤지섭,정종주<SUP>1<,SUP>,이용상<SUP>1<,SUP>,남기현<SUP>1<,SUP>,정웅윤<SUP>1<,SUP>,장항석<SUP>1<,SUP>,박정수<SUP>1<,SUP>,Ji-Sup Yun,Jong Ju Jeong,<SUP>1<,SUP>,Yong Sang Lee,<SUP>1<,SUP>,Kee Hyun Nam,<SUP>1<,SUP>,Woong You 대한갑상선-내분비외과학회 2007 The Koreran journal of Endocrine Surgery Vol.7 No.4
Purpose: Zuckerkandl's tubercle (ZT) of the thyroid gland is a well-documented anatomical structure. This study evaluated the anatomical relationship of the ZT in terms of the recurrent laryngeal nerve (RLN) and the superior parathyroid gland (SP). Methods: The study included 325 patients (ten patients with benign tumors and 315 patients with malignancies) who underwent thyroid surgery between February and June 2007. Tubercles were classified according to size: Grade 0 (unrecognizable), Grade I (≤ 5 mm), Grade II (6∼10 mm) and Grade III (>10 mm). The incidence and size of the ZT and its positional relationship to the RLN and SP were investigated during thyroid surgery. Results: ZTs were identified in most patients (right thyroid 89.3%, left thyroid 85.6%). The percentageof tubercles according to grade and location was as follows: Grade 0, right thyroid 10.7% and left thyroid 14.4%; Grade I, right thyroid 7.9% and left thyroid 11.1%; Grade II, right thyroid 43.5% and left thyroid 38.5%; Grade III, right thyroid 37.9% and left thyroid 35.9%. The most common RLN course was in a groove between the ZT and the main body of the thyroid. Most of the SPs are situated cranial to the ZTs and were located at the 1 or 2 o'clock position (96.1%) in the left thyroid and at the 10 or 11 o'clock position (95.2%) in the right thyroid. A greater distance between the ZT and the SP was seen with a decreasing size of the ZT. Conclusion: The ZT was identified during most thyroidectomies, and there was a constant relationship between the ZT and either the RLN or SP. Therefore, identification of the ZT and an understanding of the relationship between the ZT and either the RLN or SP are essential for the performance of safe thyroid surgery. (Korean J Endocrine Surg 2007;7:237-241)
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윤지섭 한국국방연구원 2019 국방정책연구 Vol.35 No.2
무기이전은 냉전기 미국의 중요한 군사원조 정책수단 중 하나였다. 미국은 무기이전을 통해 동맹을 관리, 강화하고자 하였다. 본 연구는 미국이 동맹국에 이전한 무기의 질적 차이에 주목하여 다음과 같은 연구질문을 설정하였다. “왜 냉전기 미국은 일부 동맹국에는 첨단무기를, 일부 동맹국에는 구식무기를 이전하였는가?” 본 연구에서는 관련 기존연구를 검토하여 가설을 수립하였고, 이를 통계 분석을 통해 실증적으로 검증하였다. 분석 결과, 미국의 무기이전은 철저히 현실주의적 사고에 기반함을 알 수 있었다. 미국은 동맹국의 군사력이 강할수록 첨단무기를 이전하는 경향이 높았으며, 경제적 수준이 높은 동맹국에 대해서는 첨단무기 이전을 자제하는 경향을 보였다. 이는 미국이 동맹국을 무조건적으로 지원하는 것이 아니라, 자국의 이익에 바탕하여 동맹국을 지원, 관리하고자 하는 의도를 나타내는 결과이다. Arms transfer was one of the most crucial means of the United States military assistance. The United States tried to manage and strengthen its allies through arms transfer. This study set up a research question, “Why the United States did transfer ‘advanced’ arms to some allies, while ‘obsolete’ arms to others?”, focusing on qualitative variation of arms transferred by the United States during the Cold War. This study formulates some hypotheses through reviewing relevant literatures, and empirically analyzes these hypotheses using a statistical method. According to the analysis, the more ‘military capability of the ally’ increase, the more likely transferring advanced arms become. On the other hand, the United States tended to restrain advanced arms transfer to the affluent allies. This results proves that the United States’ arms transfer policy was on the basis of its national interests to manage allies, not ‘idealistic charity’.
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윤지섭,조형석 대한기계학회 1984 대한기계학회논문집 Vol.8 No.2
본 연구에서는 유압식 방법보다 절삭 정밀도가 높고 전기신호를 사용함으로 인한 조작과 증폭이 간단하고 특성 개선을 위한 조작과 증폭이 간단하고 특성 개선을 위한 계의 보상(sysyem compensation)을 할 수 있는 전기 유압식 모방장치를 설계, 제 작하여 그 성능을 실험적으로 해석하였다. An electro-hydraulic copying system is developed and its performance is experimentally investigated. As compared with a mechanical hydraulic coping system, this system has a basic difference in that; (1) the stylus movement is converted into an electrical signal via a position transducer. (2)the actuator displacement is also measured by a position sensing element, which serves as a feedback signal. Since the system parameters affect the control performance, the response characteristics such as percentage overshoot, rise time, settling time and steady state error are experimentally obtained under variation of these variables. The system parameter include supply pressure, servo amplifier gain and feedback gain. The experimental result shows that the cutting tool follows a stylus input motion to a desirable accuracy. The implication of this result indicates that the developed system can enhance the copying accuracy of the conventionally used mechanical type of hydraulic copying system.
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무진동 크레인의 구현을 위한 여러가지 제어방식의 비교 연구
윤지섭 대한기계학회 1995 대한기계학회논문집 Vol.19 No.9
Crane operation for transporting heavy loads inherently causes swinging motion at the loads due to crane's acceleration or deceleration. This motion not only lowers the handling safety but also slows down the handling process. To complement such a problem, Korea Atomic Energy Research Institute(KAERI) has designed several anti-swing controllers using open loop and closed loop approaches. They are namely a pre-programmed feedback controller and a fuzzy controller. These controllers are implemented on a 1-ton crane system at KAERI and their control performances are compared. Test operations show that the new controllers are superior to that of conventional cranes in terms of robustness to the disturbances and adaptation capability to the change of rope length.
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국가평판이 협상입장에 미치는 영향: 미국-소련 1차 전략무기제한협상(SALT1)의 사례
윤지섭 대한민국재향군인회 안보전략연구원 2025 재향군인회 안보전략연구 Vol.13 No.-
본 연구는 국가 평판(reputation)이 국가간 협상에 미치는 영향을 확인하는 탐색적 연구이다. 평판이란 다른 행위자 혹은 청중들이 과거 행동을 기반으로 특정 행위자에 대해 기대하는 행동이나 성향을 의미한다. 본 연구는 국제협상에서 한 국가가 협상입장을 결정할 때, 상대국가의 평판이 영향을 미칠 것이라고 주장한다. 위 주장을 검증하기 위해 1969년부터 시작된 미국과 소련의 1차 전략무기제한협상(SALT1) 사례를 살핀다. 당시 미국은 이전의 협상 경험을 통해 소련에 대해 ‘약속위반 평판(reputation for cheating)’을 가지고 있었다. 이러한 평판 인식은 미국의 소련에 대한 불신을 증폭했고, 그 결과는 협상준수여부를 확인하는 검증(verification) 절차를 강조하는 미국의 협상입장으로 나타났다. This study aims to identify the impact of a state’s reputation on international negotiations. Reputation refers to the expected behavior or tendencies of a particular actor, as perceived by other actors or audiences based on past actions. The study argues that in international negotiations, a state's reputation will influence the opposing country's bargaining position. To test this hypothesis, the study examines the case of the Strategic Arms Limitation Talks (SALT I) between the United States and the Soviet Union, which began in 1969. At that time, the United States had developed a "reputation for cheating" perception of the Soviet Union based on previous negotiation experiences. This perception heightened the U.S.'s distrust of the Soviet Union, which in turn led to a U.S. bargaining position that emphasized verification procedures to ensure compliance with the agreement.
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