初等 舞踊敎育의 指導方向과 學習計劃

柳聖榮 釜山敎育大學 1992 부산교육대학 논문집 Vol.28 No.1

This study deals with the teaching object and method of dance in elementary school education. By the learning of dance, children may be able to make their way toward in more physical, spiritual and emotional development. Writer on this guide to dance teaching method were reviewed. The contents were as follows : 1. Elements of dance education-Dance education include several elements : emotional atmosphere, significance of creation, analysis of problem and importance of project. 2. Desirable dance teachers aspect-Dance teacher need to rhythmical skill, critical imagination, favorite movement and ablity to accompaniment on the music. 3. Teaching-learning schedule in elementary school dance is annual, unit and school hour. Annual schedule consider to unit plan, time plan, contents, childrens feeling. experience and ablity to expression. Unit plan consist of object, introduction and capablity. Finally, must be make warm up, repeating, practice, exercise, summing up and appreciation.

學校 舞踊에 對한 異論과 韓國的 考察

柳聖榮 釜山敎育大學 1967 부산교육대학 논문집 Vol.3 No.1

It is a very pleasant thing that the education of dance has recently been prevailing in high schools and colleges as well as in primary scools both for the formation of the beautiful, healthy body for the development of rhythmic sense, and for the cultivation of emotion and the improvement of an aesthetic eye. Because of the backwardness of the dance in Korea and its short history, there are many problems to be solved in the school dance. And it is necessary for those who study it to examine themselves and to study it more progressively. Whether the school dance is a physical education or arts, what the condition of the leader of it is to be, how to manage an exhibition of it, the significance of the folk dance, and the problems of the mass game; those are the essential problems to be re-examined. In this essay, I have tried to view the school dance from the standpoint of arts instead of from the conventional, pre modern point of physical education. I The writer wants to say that it is the only way to perform its essential duty of the school dance to emphasize and re-realize the artistic feature of the school dance as well as to develop the physical effect of the dance. After all the writer tries to show the more actual and expectable future aspect of the school dance by adding the special character of Korea to the existing viewpoint of it.

시그마-델타 A/D 컨버터용 디지털 데시메이션 필터 설계

변산호,류성영,최영길,노형동,남현석,노정진 대한전자공학회 2007 電子工學會論文誌-SD (Semiconductor and devices) Vol.44 No.2

Digital decimation filter is inevitable in oversampled sigma-delta A/D converters for the sake of reducing the oversampled rate to Nyquist rate. This paper presented a Verilog-HDL design and implementation of an area-efficient digital decimation filter that provides time-to-market advantage for sigma-delta analog-to-digital converters. The digital decimation filter consists of CIC(cascaded integrator-comb) filter and two cascaded half-band FIR filters. A CSD(canonical signed digit) representation of filter coefficients is used to minimize area and reduce in hardware complexity of multiplication arithmetic. Coefficient multiplications are implemented by using shifters and adders. This three-stage decimation filter is fabricated in 0.25-㎛ CMOS technology and incorporates 1.36 ㎟ of active area, shows 4.4 ㎽ power consumption at clock rate of 2.8224 ㎒. Measured results show that this digital decimation filter is suitable for digital audio decimation filters. 오버샘플링(oversampling) 방식의 시그마-델타(sigma-delta) A/D 컨버터에서는 오버샘플링된 신호를 최종 Nyquist rate 으로 낮춰주는 디지털 데시메이션 필터가 필수적이다. 본 논문에서는 면적을 크게 줄이면서 time-to-market의 이점을 가져다주는 고해상도 시그마-델타(sigma-delta) A/D 컨버터용 디지털 데시메이션(decimation) 필터의 Verilog-HDL 설계 및 구현을 보였다. 디지털 데시메이션 필터는 CIC(cascaded integrator-comb) filter와 두 개의 half-band FIR filter로 이루어져 있다. FIR 필터에서 곱셈연산의 복잡성을 줄이고 면적을 최소화하기 위해 계수를 CSD(canonical signed digit) 코드로 표현하여 사용하였다. 곱셈 연산은 일반 곱셈기 없이 쉬프트 와 덧셈방식을 이용하여 구현되었다. 3단 데시메이션 필터는 0.25-㎛ CMOS 공정으로 제작되었고, 필터의 면적은 1.36 ㎟ 이며 2.8224 ㎒의 클럭 주파수에서 4.4 ㎽의 파워소모를 보였다. 측정 결과 높은 신호 대 잡음 비(SNR)를 요구하는 디지털 오디오용 데시메이션(decimation) 필터의 사양을 충분히 만족시키고 있음을 볼 수 있다.

Are there network differences between the ipsilateral and contralateral hemispheres of pain in patients with episodic migraine without aura?

장준석,류성영,이동아,박강민 대한임상신경생리학회 2023 Annals of Clinical Neurophysiology Vol.25 No.2

Background: We aimed to identify any differences in the structural covariance network based on structural volume and those in the functional network based on cerebral blood flow between the ipsilateral and contralateral hemispheres of pain in patients with episodic migraine without aura. Methods: We prospectively enrolled 27 patients with migraine without aura, all of whom had unilateral migraine pain. We defined the ipsilateral hemisphere as the side of migraine pain. We measured structural volumes on three-dimensional T1-weighted images and cerebral blood flow using arterial spin labeling magnetic resonance imaging. We then analyzed the structural covariance network based on structural volume and the functional network based on cerebral blood flow using graph theory. Results: There were no significant differences in structural volume or cerebral blood flow between the ipsilateral and contralateral hemispheres. However, there were significant differences between the hemispheres in the structural covariance network and the functional network. In the structural covariance network, the betweenness centrality of the thalamus was lower in the ipsilateral hemisphere than in the contralateral hemisphere. In the functional network, the betweenness centrality of the anterior cingulate and paracingulate gyrus was lower in the ipsilateral hemisphere than in the contralateral hemisphere, while that of the opercular part of the inferior frontal gyrus was higher in the former hemisphere. Conclusions: The present findings indicate that there are significant differences in the structural covariance network and the functional network between the ipsilateral and contralateral hemispheres of pain in patients with episodic migraine without aura.

DC-DC 컨버터용 높은 슬류율의 OTA 설계

김인석,노정진,류성영 대한전자공학회 2006 電子工學會論文誌-SD (Semiconductor and devices) Vol.43 No.10

휴대용 전자제품의 증가에 따라 배터리의 사용 시간을 증가시키기 위한 파워 메니지먼트 회로의 설계는 매우 중요해 지고 있다. 이에 따라 전원공급 시스템, 특히 파워 효율이 높은 스위칭 방식의 DC-DC 변환기의 필요성은 더욱 커지고 있다. 본 논문에서 제안된 새로운 에러 앰프는 고속으로 동작하는 DC-DC 컨버터를 위해 고성능의 구조를 구현하고 있다. 본 앰프는 높은 전력변환 효율을 위해 낮은 대기 전류를 갖지만, 큰 입력신호 구간에서는 충분한 전류를 공급할 수 있도록 설계되었다. 두개의 비교기가 구현되어 큰 신호의 변화를 감지해서 여분의 전류 공급기를 턴-온 시켜서 필요한 전류를 공급해준다. 피드백 동작하는 DC-DC 컨버터의 특성상 다양한 동작 환경에서 시스템의 안정성을 보장하기 위해서는 여분의 전류의 양이 잘 조절되어야 한다. 시뮬레이션 결과는 시간 천이 반응에서 새로운 앰프가 기존의 앰프보다 뛰어난 성능향상을 얻을 수 있음을 보여준다. A new error amplifier is presented for fast transient response of DC-DC converters. The amplifier has low quiescent current to achieve high power conversion efficiency, but it can supply sufficient current during large signal operation. Two comparators detect large-signal variations, and turn on extra current supplier if necessary. The amount of extra current is well controlled, so that the system stability can be guaranteed in various operating conditions. The simulation results show that the new error amplifier achieves significant improvement in transient response than the conventional one.

척수숨뇌근위축증과 혈청반응양성중증근무력증의 동시 발생

황현영,신경진,장준석,류성영 대한신경과학회 2024 대한신경과학회지 Vol.42 No.2

다양한 임상표현을 보인 OPA1유전자 돌연변이에 의한 가족 증례

이준호,강재호,서영덕,은정익,황현영,류성영,장준석,박진세 대한신경과학회 2023 대한신경과학회지 Vol.41 No.1

Ataxia is presented by various etiologies, including acquired, genetic and degenerative disorders. Although hereditary ataxia is suspected when typical symptom of ataxia with concurrent is identified, it is sometimes difficult to diagnose hereditary ataxia without genetic test. Clinically, next generation sequencing technology has been developed and widely used for diagnosis of hereditary disease. Hereby, we experienced cases of genetically confirmed OPA1 mutation, which are presented with various clinical manifestations including ataxic gait and decreased visual acuity.