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Huh, Sung Hoi,Kim, Ki Hong,Kwon, Se Ryun 한국수산학회 1999 Fisheries and Aquatic Sciences Vol.2 No.1
During the course of studying the helminth fauna from the fishes of the Korean coastal waters, two bucephalid species, Dolichoenterum longissimum Ozaki, 1924 and Prosorhynchus aculeatus Odhner, 1905, were collected from the alimentary canal of the conger eel, Conger myriaster. D. longissimum was characterized by having the ovary between the testes, and 7∼8 horn-like projections on the ventral side of rhynchus. P. aculeatus was distinguished from the other species by the location of the mouth or the opening position of the excretory vesicle. These two bucephalid digeneans are new to the Korean fauna.
Huh,Sung Hoi,Kim,Ki Hong,Kwon,Se Ryun,Ahn,Kyong Jin 한국어병학회 2001 한국어병학회지 Vol.14 No.1
The seasonal trends of plasma protein and glucose concentrations in marbled soles(Limanda yokohamae) and greenlings(Hexagrammos otakii), and the influence of transport stressor on those levels were investigated. Total plasma protein levels of marbled soles and greenlings in late spring and summer were significantly higher than those in winter(January). Plasma glucose levels were consistently increased according to elevation of water temperature both in marbled soles and greenlings. Transport stressor gave rise to decrease of plasma protein levels and increase of blood glucose levels.
ECONOMIC INTERDEPENDENCE AND INTERNATIONAL CONFLICTS IN THE AISA-PACIFIC
Huh, Tae-hoi The Institute for Far Eastern Studies, Kyungnam Un 1997 ASIAN PERSPECTIVE Vol.21 No.1
In an attempt to rigorously explore the international implications of deepening Asian-Pacific economic interdependence, this study examines and evaluates the relationships between trade interdependence and the patterns of international conflicts among some regional countries using theoretical and empirical evidence. First, the present study brings into account some relevant works and articulates a theoretical linkage between economic exchange and an international conflict pattern. Second, because the question of the causlity between the economic and conflict variables continues to obscure analytical enlightenment, this study tests major hypotheses in monadic and dyadic terms by employing the Granger causlity test, which is designed to explore and verify various causal possibilities between time-series variables. Based upon the main findings of this research, increasing Asian-Pacific economic ties turn out to have some propitious implications for regional relations, moving a few regional countries in such "complex interdependent" situations toward improved relations with other trading countries. Nonetheless, this study argues that the magnitude of economic interactions does not appear to be a necessary condition for the improvement of relations between trading states. Without much regard to the function of a dyadic interaction elasticity, or the intensity of gains from trade with other regional countries relative to the gains from global trade, the merely expanding regional trade may not realize such a positive influence on interstate cooperation among major regional traders. Thus, despite increased intra-regional trade which appears conducive to extending "sensitivity dependence" among regional countries, this study suggests that the structure of "vulnerability dependence" among regional countries be adjusted continuously or accommodated among major economic patners lest a regional interaction elasticity be marginalized by a few inordinate economies.
Huh, Sung Hoi,Lee, Jung Sick,Oh, Yung Keun 한국수산학회 1997 한국수산과학회지 Vol.30 No.6
Fine structural changes of the germ cells during spermatogenesis in the goldeye rockfish, Sebastes thompsoni were examined by means of the transmission and scanning electron microscopy. A spermatogonium has a large nucleus with a single nucleolus in the interphase. Primary spermatocytes are characterized by the formation of chromatin clumps and presence of the synaptonemal complex in the nucleus. The nucleoplasm of secondary spermatocytes is more condensed than that of primary spermatocytes, and the cytoplasm contains numerous mitochondria, endoplasmic reticulum and Golgi complex. The nuclei of spermatids in metamorphosis show sickle-like shape as the nucleoplasm becomes more condensed. In the cytoplasm of spermatids, the proacrosomal granules are not found at all. A spermatozoon consists of head, neck and tail. The acrosome is absent in the head. Four to five cytoplasmic collars are observed in the posterior portion of the head of spermatozoon. The well developed axonemal lateral fins are observed in the flagellum of spermatozoon.
Design of a Robust Stable Flux Observer for Induction Motors
Huh, Sung-Hoi,Seo, Sam-Jun,Choy, Ick,Park, Gwi-Tae The Korean Institute of Electrical Engineers 2007 Journal of Electrical Engineering & Technology Vol.2 No.2
This paper presents a robustly adaptive flux observer for speed-sensorless induction motor control. The proposed approach employs additional robustifying signals to cope with the parametric uncertainties instead of designing an estimator, which has been normally used in power electronic drives. For that, the sliding-mode like adaptive controls are designed and their gain parameters are determined so that the observer dynamics are stable in the sense of Lyapunov, and furthermore they can guarantee the robustness against parametric uncertainties in induction motor systems. Estimated rotor speed is to be used to generate feedback control signal for the speed sensorless vector control system. To show the validity and efficiency of the proposed system, simulation results are presented.
Efficient Delay Testing Algorithm for Sequential Circuits with a New Scan Design
Huh, Kyung-Hoi,Kang, Yong-Seok,Kang, Sungho 연세대학교 아식설계공동연구소 2000 Journal of the Research Institute of ASIC Design Vol.7 No.1
Delay testing is essential for assurance of digital circuit operations. However, delay faults in sequential circuits cannot be detected easily due to the existence of state registers. To overcome this difficulty a new scan flip-flop is devised which can be used for both stuck-at testing and delay testing. In addition, the new scan flip-flop can be applied to both the existing functional justification method and the newly-developed reverse functional justification method which uses scan flip-flops as storing the second test patterns rather than the first test patterns. Experimental results on ISCAS'89 benchmark circuits show that the number of testable paths can be increased drastically over conventional scan techniques.