• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.6 no.1
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• pp.116-122
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• 1995

목적 : 다음과 같은 fluoxetine으로 유발된 조증 증례를 보고한다. 이와 함께 fluoxetine사용이후 보고된 조증 증례보고를 모아서 정리하고 함께 문헌고찰을 하였다. 증례요약 : 가족력상 기분장애의 병력이 없었으며, 다른 주요 정신과적 질환의 병력은 없었다. 환아는 개인력상 5세경에 주의력 결핍, 과잉행동의 양상을 보였던 병력이 있었고, 13세때에 피해 망상, 환청이 지속되어 haloperidol로 치료받기 시작하였다. 이후 피해 망상의 내용을 언급하거나 환청에 영향받는 행동은 없어졌고 간혹 우울감을 호소하였다. 이후 정신분열증의 진단 하에 haloperidol만으로 3년간 유지하였다. 1994년 환아는 18세때 고3이 되면서 대입에 대한 걱정과 신체적인 허약감을 자주 호소하며, 우울증상이 두드려져 fluoxetine 20mg를 3일간 투여하던 중 갑자기 조증의 임상적 양상을 보이기 시작하여 본원의 입원치료를 받게 되었는데, 입원당시 보인 임상양상은 앙양된 기분, 이자극성(irritability), 사고의 비약, 연상의 이완과 지리멸렬, 과대망상, 피해망상, 관계망상, 환청 등이었고 사람, 장소, 시간에 대한 지남력까지 일시적으로 상실되는 심헌 정신병적 조증상태였다. 토의 : fluoxetine 사용이후 현재까지 세계적으로 문헌상 보고된 14개의 증례보고를 모아서 정리하였다. fluoxetine-induced mania의 병태생리학적인 기전은 명확하지 않지만 가능한 기전에 대해 토론하였다. 이 약물의 중대한 부작용중의 하나인 조증을 예방하기 위해, 이 약물을 다루는 의사는 가능한 조증 발병의 위험인자들에 대하여 인식하고, 약물의 용량조절시에도 주의를 하여야 한다. 가능한 발병 위험인자들에 관해서도 검토하였다.

• Journal of Korean Ophthalmic Optics Society
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• v.4 no.2
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• pp.105-111
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• 1999

This paper presents experimental results on the electrical properties of hydrogenated amorphous carbon films(a-C:H) prepared by PECVD. DC conductance of a-C:H was measured as a function of temperatures in the range of 100 to 423K. We studied two a-C:H films: one was well explained by the Mott's Variable Range Hopping(VRH) rule, but the other sample did not follow it. However, the conduction data of second sample were well fitted to Shimakawa's Multi-Phonon Hopping(MPH) model according to which conductivity is proportional to $T^M$ with m=15-17. but, in our samples, m was 10-12. Also a-C:H showed several bias effects like relaxation of conductance, bias-dependent conductance and the change of conductance slope in 1n(${\sigma}{\sqrt{T}}$) vs. $T^{1/4}$ plot. In this study we interpret these data by bias-dependent detrapping model.

• The Journal of the Korea Contents Association
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• v.7 no.8
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• pp.109-116
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• 2007

Motion Capture in multimedia contents of the imagination world is utilized in various field such as game, movie, TV. Motion Capture technology of most of game is utilized. As well as is more realistic if use motion Capture and superior time and monetary aspect than previous key frame (Key-Framing) way as well as can display screen that do dynamic, there is more excellent advantage in qualitative aspect. But, is utilizing in some specialty companies and use example was not informed much about problem when is very lacking, and utilize yet in learned circles. Extract motion data of various action using optic motion Capture of motion Capture equipment in this treatise, and investigated about problem that appear when applied in character that is different from a person.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.29 no.7C
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• pp.946-953
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• 2004

Fast search and conventional boolean matching motion estimation algorithms reduce computational complexity and data processing time but this algorithms have disadvantages that is difficult of implementation of hardware because of high control overhead and that is less performance than Full search Algorithm(FA). This paper present new all binary block matching algorithm, called Bit Converted All Binary Block Matching(BC-ABBM). Proposed algorithm have performance closed to the FA by boolean only block matching that may be very efficiently implemented in hardware for low bit rate video communication. Simulation results show that the PSNR of the proposed algorithm is about 0.04dB loss than FA but is about 0.6 ∼ 1.4dB gain than fast search algorithm and conventional boolean matching algorithm.

• Physical Therapy Korea
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• v.10 no.4
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• pp.95-103
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• 2003

본 연구는 초기 편마비 환자의 손목에서 표면근전도 분석을 통해 근수축 개시 및 종료의 특성들을 알아보고, 임상적인 치료방법의 기초를 제안하고자 실시하였다. 연구대상자는 원주기독병원에 뇌졸중으로 입원한 환자 중 발병 후 3개월 미만인 13명과 원주시에 거주하는 대조군 7명이었다. 근수축 개시 및 종료의 지연은 표면근전도를 이용하여 손목굽힘근과 손목펴짐근에서 손목관절의 굽힘과 폄동작 시 3초의 근전도 신호음에 따라 가장 빠르고 강하게 최대 등척성 수축과 이완을 하여 신호를 수집하였다. 그 결과 편마비 환자의 환측은 건측과 대조군에 비해 손목관절 굽힘과 폄동작에서 근수축 개시및 종료가 유의하게 지연되었으며, 개시보다 종료가 더 유의하게 지연되었다. 따라서 초기 뇌졸중 환자의 근약화는 근육의 개시 및 종료의 반응시간 지연에 영향을 준다고 볼 수 있다. 앞으로 운동조절과 연관되어 기능적인 회복을 유도할 수 있는 근수축의 민첩성 훈련과 근섬유 동원의 효율성을 증진시키기 위한 치료방법들이 연구되어야 할 것이다.

• The Journal of Korean Association of Computer Education
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• v.8 no.4
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• pp.71-77
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• 2005

Effective information delivery between school and parents is very important in preschool and the lower classes of elementary school. It is because by the fact that the traditional method of information delivery relies on kids to deliver school information but they are not sufficiently matured enough to deliver information correctly. In this point of view, this paper proposes a new information delivery method combining internet homepage and mobile message services and develops a information delivery system to support that method. Proposed method and developed system are able to correctly deliver information within the desired time and they do not increase the burden of communication costs and teacher's works.

• Journal of Ocean Engineering and Technology
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• v.11 no.4
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• pp.111-121
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• 1997

The spectral energy balance model is composed and the nonlinear interaction is approximated by the discrete interaction parameterization as in WAM model. The numerical results of durational limited growth test agree very well with those of the exact model, EXACT-NL. The response of a wave spectrum to a change in wind direction is investigated numerically for a sequence of direction changes 30$^{\circ}$ , 45$^{\circ}$ , 60$^{\circ}$ , 90$^{\circ}$ . The high frequency components relax more repidly to the new wind direction than the low frequency components and the relaxation process also depends on the wave age. For wind direction changes less than 60$^{\circ}$ , the coupling by nonlinear interaction is so strong that the secondary peak in input source distribution is counteracted by the negative lobe of the nonlinear interaction. For wind direction changes grater than 60$^{\circ}$ , a second independent wind-sea spectrum is generated in the new wind direction, while the old spectrum gradually decays as swell.

• PNF and Movement
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• v.14 no.1
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• pp.59-65
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• 2016

Purpose: The purpose of this study was to review articles in order to establish optimal contraction intensity and duration in the performance of relaxation techniques for maximal increase in range of motion. Methods: The Cochrane, EBSCO, Embase, Medline, ProQuest, PubMed, ScienceDirect, and Scopus databases were used to search articles from 1990 to January 2016. The search terms were "contract relax," "hold relax," "muscle energy technique (MET)," and "proprioceptive neuromuscular facilitation (PNF) stretching." Only experimental human studies (randomized controlled trials) that compared the effects of varying intensity and duration of isometric contraction were included. Non-English language and unpublished studies were excluded. Results: A total of 2,156 articles were initially identified, with only five eventually meeting the inclusion and exclusion criteria. Three studies compared the effects of varying intensity in isometric contraction and two studies compared the effects of varying duration in isometric contraction with regard to range of motion (ROM). Two articles suggested that submaximal voluntary isometric contraction was more effective than maximum voluntary isometric contraction (MVIC) in the improvement of ROM. One article showed that a longer contraction time led to greater increases in ROM. Conclusion: Submaximal voluntary isometric contraction was recommended during contract-relax exercises in healthy people. Lack of evidence makes it difficult to suggest the optimal duration of isometric contraction during relaxation techniques. For future research, high-quality evidence will be needed to establish the optimal contraction intensity for maximum improvement of ROM.

• The Journal of the Korea Contents Association
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• v.6 no.11
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• pp.258-265
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• 2006

DEVS formalism is advantageous in modeling large-scale complex systems and it reveals good readability, because it can specify discrete event systems in a hierarchical manner. In contrast, it has drawback in that the simulation speed of DEVS models is comparably slow since it requires frequent message passing between the component models in run-time. This paper proposes a method, called model composition, for simulation speedup of DEVS models. The method is viewed as a compiled simulation technique which eliminates run-time interpretation of communication paths between component models. Experimental results show that the simulation speed of transformed DEVS models is about 18 times faster than original ones.

• Journal of Digital Convergence
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• v.14 no.9
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• pp.423-429
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• 2016

Character customization means a series of processes to build a characters. Mobile character customizing system is very scarce than Online RPG system qualitatively or quantitatively. In this paper, I will propose some effective elements about A DIY character system that must be suitable for the mobile environment system. The reasons why Select System is mainly used as the customizing system in RPG are as follows; First, the screen of a mobile device is small; Second, it is due to the space-time characteristics with which mobile games are played. In the middle of playing a game, a customizing system should be adopted in order for players not to feel bored. In addition, avatar's costumes should be continually updated.