Welfare Effects of Voluntary Import Expansion : Using Cournot Model 쿠르노 모델을 이용하여

Sim, Sung-Hoon 慶州大學校 2005 論文集 Vol.18 No.1

그 동안 수입할당제(import quota)에 대한 대안으로써 자발적 수출제한(voluntary export restraint)이라는 정부의 정책에 관하여 활발하게 연구되어 왔으나, 자발적 수입확대(voluntary import expansion) 정책에 대한 연구는 그리 활발하지 못하였다. 본 연구는 단순한 쿠르노 모델을 이용하여, 자발적 수입확대정책을 채택한 나라의 후생 효과(welfare effect)에 대한 몇 가지 이론적 결론을 도출하였다. 첫째, 자발적 수입확대 정책을 채택한 나라는, 자유무역의 경우에 비하여 가격을 상향하는 전략을 채택함으로써 이익을 극대화 할 수 있음을 보여 준다. 둘째, 자발적 수입확대가 매우 클 경우에는 후생효과가 불확실하다는 결론이 도출되었다. 셋째, 자발적 수입확대와는 다르게 자발적 수출제한은 가격경쟁에 의하여 한 나라를 시장에서 퇴출시키지 못한다는 것을 보여 주었다. 또한 본 연구는 한 나라의 경제 규모가 매주 작은 경우뿐만 아니라, 그 규모가 매우 큰 경우에도 그 나라는 자발적 수입확대를 무시할 수 있다는 점을 이론적으로 보여 준다.

Underlying representation in geminates: from OT perspective

Sung-Hoon Hong,Chang-Kook Suh 한국음운론학회 2004 음성·음운·형태론 연구 Vol.10 No.1

Hong, Sung-Hoon, and Chang-Kook Suh. 2004. Underlying represen-tation in Geminates: from an OT perspective. Studies in Phonetics, Phonology and Morphology. 10.1. 129.144. This research has examined the status of Underlying Representation (UR) in Optimality Theory focusing on the representation of consonant geminates. For this purpose, we have examined geminate/singleton alternation in Ponapean employing Lexicon Optimization (LO), an algorithm proposed to select a UR among multiple inputs. We have seen that simple application of LO is problematic in singling out a UR for the case of alternation. This leads us to the version of LO that is performed on the paradigms, rather than on an individual forms (Tesar and Smolensky 1996, 2000, Inkelas 1995, 1998). After a thorough implementation of LO, we have found that the URs are simply identical to the input forms; geminate UR for the alternating case and singleton UR for the nonalternating case. Further, it was shown that a unique underlying representation of geminates, regardless of their positions in which they occur, can account for the exceptional geminate behaviors. (Hansung University and Cheonan University)

Adamkiewicz 동맥의 폐색에 의한 척수경색 1례

이광훈,이종걸,이태연,신동익,이성현,이상수,한설희,차상훈 대한신경과학회 1998 대한신경과학회지 Vol.16 No.4

Underspecification in Optimality Theory: Vowel Harmony in Classical Manchu

Sung-Hoon Hong 한국음운론학회 2002 음성·음운·형태론 연구 Vol.8 No.2

Hong, Sung-Hoon. 2002. Underspecification in Optimality Theory: Vowel Harmony in Classical Manchu. Studies in Phonetics, Phonology and Morphology 8.2. 323-350. This paper addresses some important issues raised by A TR harmony in Classical Manchu, formerly treated as front/back harmony. Here, the front high vowel [i] is totally inactive with respect to the harmony: it is transparent to the harmony, and further, it does not initiate the harmony. I will show that these properties of [i] will be properly explained if we allow underspecified [i] as an option for inputs and output candidate forms. Allowing underspecified [i] in fact accords more with basic notions of Optimality Theory (OT) such as Freedom of Analysis and Richness of the Base than the analyses that do not tolerate this possibility. I will further show that once we allow underspecified [i], its selection in output candidate forms or in input forms is totally governed by OT principles such as constraint interaction and Lexicon Optimization, respectively. (Hansung University)

Q-행렬에 근거하는 치유교습 순서

김성훈(Sung Hoon Kim) 한국교육평가학회 2020 교육평가연구 Vol.33 No.2

이 연구는 인지진단 결과로 주어지는 미성취 인지요소의 치유교습 순서에 Q-행렬이 어느 정도로 어떻게 결정하는지 탐색하였다. Tatsuoka(2009)가 소개한 인접행렬, 도달행렬, 그리고 영향도표를 이용하여 Q-행렬에 내재하는 인지요소 간의 인과관계를 치유교습의 순서로 개념화하였다. 이 연구 결과로 제안한 Q-행렬의 치유교습 순서 기여도는 그 행렬에 포함된 K개의 인지요소 간 있을 수 있는 모든 인과관계의 수에 대한 실제 Q-행렬에 내재하는 인과관계 수의 비율로 정의하였다. 분석 대상 Q-행렬은 이 이론적 배경에 사용된 예시적 Q-행렬과 실제 Q-행렬 2개다. 후자는 성태제(2018) 연구와 박세진·이현숙(2018) 연구에서 인용하였다. 연구 결론으로서 Q-행렬은 치유교습 순서 결정을 위한 보편적 출발점이 되며; 지식의 위계가 분명한 검사일수록 Q-행렬의 치유교습 순서 기여도는 높을 것이며; 인지진단 결과로 주어지는 인지상태는 Q-행렬의 가정과 충돌할 수 있음 등이 논의되었다. This study was to investigate how and how much does a Q-matrix contribute in deciding the sequence of remedial instruction of the unattained attributes being identified from cognitive diagnostic assessment. Applying the adjacency matrix, reachability matrix, and influence diagram introduced in cognitive assessment context by Tatsuoka (2009), the sequence was defined as the causal relationship among attributes forming a Q-matrix. Three Q-matrices were gone under analysis. They were an example one, one from Sung’s(2018) study, and the other from Park & Lee’s(2018) study. The results were discussed into three conclusions. Firstly, the Q- matrix could provide a objective starting point for a whole sequence of remedial instruction; secondly, the more hierarchical a Q- matrix was the more it helped deciding sequence of remedial instruction; thirdly, knowledge states from cognitive diagnosis might contradict the causal relationship assumptions implied by the Q-matrix.

인공 판막 환자에서 발생한 Listeria monocytogenes 심내막염 1예

신상엽,손준성,김형훈,민태훈,윤종욱,장현하,정숙인,오원섭,김성민,백경란,송재훈 대한감염학회 2002 감염 Vol.34 No.5

Prediction of Retained Austenite Fraction in Quenching-and-Partitioning (Q&P) Steels Using the Gibbs Energy Balance Approach

Seong Hoon Kim,Ji Hoon Kim,Jae Hoon Lee,Dong‑Woo Suh,Jae Sang Lee 대한금속·재료학회 2022 METALS AND MATERIALS International Vol.28 No.9

Prediction of retained austenite fraction is quite important in designing advanced high strength steels since retained austeniteis the source of transformation-induced plasticity. The present study investigates the phase constitution of a medium-carbonQ&P steel by comparing various approaches to the transformation stasis of bainitic ferrite and applying them to the partitioningprocess. Among them, the modified GEB approach gave the best agreement with the experimental observation, includingthe effects of heat-treatment condition and chemical composition on phase constitution. This indicates phase transformationduring partitioning can be effectively described by the physics of Gibbs energy balance approach.

원문 : 야외운동기구를 이용한 운동프로그램이 노인들의 활동체력, 대사증후군 위험인자 및 염증인자에 미치는 영향

양상훈 ( Sang Hoon Yang ),김종식 ( Jong Shik Kim ) 한국운동생리학회(구 한국운동과학회) 2014 운동과학 Vol.23 No.3

양상훈, 김종식. 야외운동기구를 이용한 운동프로그램이 노인들의 활동체력, 대사증후군 위험인자 및 염증인자에 미치는 영향. 운동과학, 제23권 제3호, 229-240, 2014. 본 연구는 여성노인 65세 이상 16명을 대상으로 8주간의 야외운동기구를 이용한 운동프로그램 참여가 활동체력, 대사증후군 위험인자 및 염증인자에 미치는 영향을 규명하였다. 활동체력의 경우 악력은 유의한 차이가 없었으나 하지근력과 유연성은 운동 후 유의하게 증가한 것으로 나타났다. 대사증후군 위험인자의 경우 HDL-C는 운동 후 유의하게 증가하는 것으로 나타났으며, glucose는 유의하게 감소하는 것으로 나타났다. 허리둘레, 수축기 혈압, 이완기 혈압, TG는 유의한 차이가 없었다. 염증인자의 경우 CRP, TNF-α 모두 운동 후 감소하는 것으로 나타났으나 유의한 차이는 없었다. 결론적으로 야외운동기구 운동프로그램은 하지근력, 유연성 강화와 HDL-C 증가, glucose 감소의 연구결과를 보았을 때 더 다양한 야외운동기구를 이용한 운동프로그램을 개발하고 지속적으로 운동의 효율을 높여간다면 노화를 지연시킬 뿐만 아니라 각종 질병을 방지하고 건강을 유지시키는 효과를 기대할 수 있을 것으로 사료된다. Yang, Sang-Hoon, Kim, Jong-Shik. The Effects of Exercise Program Outdoor Exercise Equipment on Activity Fitness, Metabolic Syndrome Risk Factors and Inflammatory Factors in the Elderly. Exercise Science, 23(3): 229-240. 2014. This study is for observing the influence of exercising in outdoor exercise facilities for 8 weeks on activity fitness, risk factors of insulin resistance syndrome and inflammatory factors in 16 females who are aged 65 years or older. The major results on this analysis are as follows: In parameters for activity fitness, there was no significant difference in grasping power but a significant increase in strength of lower limb muscles and flexibility after exercise. For risk factors of insul in resistance syndrome, there was a significant increase in HDL-C after exercise with a significant decrease in gl ucose. There was no significant difference in waist l ine, systol ic bl ood pressure, diastol ic bl ood pressure and TG. For inflammatory factors, there was a decrease in CRP and TNF-α after exercise with no significance. In conclusion, the results showing positive effects on physical fitness of lower limb muscles and physiological markers including HDL-C and glucose indicates that elderly women exercising in outdoor exercise facilities may have benefits of antiaging effect, prevent various diseases and stay healthy if efficiency of exercise using outdoor exercise facilities is continually improved in a variety of training programs.

유해화학물질의 계통분석

박성우,박유신,이진훈,김남이,김유나,임미애,이상기,유재훈,진광호,신호상,노동석 內務部 國立科學搜査硏究所 2001 國立 科學 搜査 硏究所 年報 Vol.33 No.-

정보이론 기반 한국어 준말의 분석

홍성훈 ( Sung Hoon Hong ),박선우 ( Sunwoo Park ) 경희대학교 언어연구소 2016 언어연구 Vol.33 No.2

In casual speech of Korean, words are often reduced to shorter forms by reducing one or more syllables from the original words. This word reduction comes in three types: simple deletion of one or more syllables from the source word, reduction motivated by hiatus avoidance, and reduction created by deletion of subsyllabic segment(s) with subsequent resyllabification. The third type, which we call "subsyllabic reduction (SSR)," is particularly interesting because it is not clear what motivates this specific deletion of segment strings and the subsequent phonological restructuring. This paper examines the issues surrounding SSR from the perspective of information theory (Shannon 1948) and proposes that SSR occurs to improve string well-formedness and collocational strength between segments, which are measured respectively by information-theoretic notions of ``positive logarithm`` (plog; Goldsmith 2002, 2011) and ``mutual information``. To elaborate this proposal, we compiled a list of reduced words created by SSR and examined how plog and mutual information vary with SSR. We obtained a partially positive result: Among the five types of SSR, the values of plog and mutual information change as we expected in three types, which account for 270 out of 309 cases of SSR. We suggested a tentative explanation for the remaining cases based on reverse derivation and word-edge effect. (Aitchison 2011). (Hankuk University of Foreign Studies · Keimyung University)