Preliminary Study on Quantitative Sleep EEG Characteristics in Patients with Schizophrenia

오성민,이유진,김종원,최재원,정도언 대한신경정신의학회 2017 PSYCHIATRY INVESTIGATION Vol.14 No.2

We used quantitative electroencephalography (EEG) spectral analysis to compare activity in the bilateral frontal, central, and occipital areas in nine patients with schizophrenia and ten healthy control subjects during standard nocturnal polysomnography. Patients with schizophrenia had longer sleep latency than controls. In N2 sleep, the patients had significantly lower 0.5–1 Hz power and higher theta power in the left frontal region, and higher beta power in the left occipital region than did control subjects. In N3 sleep, the patients with schizophrenia had significantly higher alpha power in the left occipital region than did controls. These findings show distinctive EEG sleep patterns in patients with schizophrenia, which may reflect brain dysfunction or medication effects.

아교 전처리 및 평가 조건에 따른 특성연구

오성민,유지아,이나라,김태헌,김성은,정용재 한국문화재보존과학회 2019 보존과학회지 Vol.35 No.6

Animal glue is a natural adhesive made from processed skins or bones of animals. It is widely used in wooden crafts, papercrafts, dancheong painting, and pictures. Accurate evaluation of the quality of animal glues during production and use is difficult because there is no formal method for testing the glue’s properties during pretreatment and measurement conditions. Thus, in this study, a series of tests were carried out by changing the conditions of swelling, temperature, and concentration of animal glue and gelatin sold on the market. Twelve types of animal glues were evaluated, having a viscosity range of 12.67 cP to 29.43 cP. The results showed that the physical characteristics of the glues were stable when allowed to swell for six h in distilled water(23℃). When 10%(by weight in distilled water) of the animal glue was measured in the reflective mode of a spectrophotometer, the optical characteristics of the glues were stable. Powdered animal glues have a medium brightness and middle-high chroma. Relative to powdered glues, stick animal glues have a low brightness and a medium chroma. Based on the results of this study, it is expected that the data can be assembled into a form so that animal glue workers can use it as a reference for the preparation of evaluation standards for testing the characteristics of animal glues. 아교는 짐승의 가죽이나 뼈를 정제하여 제조한 천연접착제로 목재, 종이 등의 공예나 단청 또는 그림 채색 시의 교착제로서 다방면에 사용되고 있다. 아교의 사용 조건은 다양하나 전처리 및 측정조건에 따른 아교 특성을 평가하는 방법이 정형화되어있지 않아 아교 생산 및 사용에 있어서 정확한 품질평가가 어려운 실정이다. 이에 본 연구에서는 시중에 판매되고 있는 아교 및 젤라틴을 대상으로 팽윤과 온도, 농도 등의 조건을 세분화하여 특성 평가를 실시하였다. 연구 결과, 물리적 특성 평가는 아교를 23℃, 6시간 동안 팽윤한 뒤 점도 측정 시에 안정적인 결과 값을 나타냈으며 시판아교 12종 대상으로 점도 최솟값이 12.67 cP, 최댓값은 29.43 cP으로 측정되었다. 광학적 특성 평가에서는 10% 농도의 아교를 분광측색계의 반사모드로 측정 시 경향성 및 정제된 값을 가짐을 확인하였다. 분말아교는 중반대의 명도와 상중반대의 채도를 가지며 막대아교는 상대적으로 밝기가 낮으며 중반대의 채도를 가진 것으로 확인되었다. 본 연구를 통해 아교를 사용하는 작업자 또는 연구자에게 시판아교의 특성에 대한 기초자료를 제공하고, 향후 아교 특성을 평가하기 위한 평가기준 및 방법을 제시할 수 있을 것으로 기대한다.

후기 중년남성 회전근개 파열환자의 재활에 관한 무용치료 예비사례연구 - Preliminary Case Study

오성민,김향숙 한국예술종합학교 무용원 2022 무용과 이론 Vol.6 No.-

The purpose of this study was to verify the intervention effect of dance movement therapy for the middle aged male-rotator cuff injury patient’s rehabilitation. The program was organized through clinical program, expert meetings and narrative study. The case was attended by one patient who was diagnosed as rotator cuff partial tear and received several other rehabilitation methods previously. As a result, the dance movement therapy program showed positive effect on the patient’s recognition of his own injury and improvement of rehabilitation progress. Based on the results, a follow-up study on the dance movement therapy programs with various kind of injuries and population was proposed.

전자재료용 금속 및 세라믹 나노분말의 기상합성기술

오성민 한국공업화학회 2013 한국공업화학회 연구논문 초록집 Vol.2013 No.-

고주파 열플라즈마를 이용한 질화티타늄으로부터 이산화티타늄 나노분말의 제조

오성민,( T. Ishigaki ),송대섭,박동화 한국공업화학회 2005 한국공업화학회 연구논문 초록집 Vol.2005 No.-

Massive Connectivity 제공 기술

오성민,신재승,이창희,박옥선 대한전자공학회 2016 전자공학회지 Vol.43 No.4

부상 경험이 있는 선수들의 감정상태에 따른 통증 인지의 정도

오성민,전형필 한국운동생리학회 2022 운동과학 Vol.31 No.4

PURPOSE: This study aimed to verify whether the degree of pain cognition by injury-experienced athletes in a sports setting varies depending on their emotional status, and to compare the values between the VAS (subjective pain score) and RIII reflex (objective pain data). METHODS: Injured (n=15) and non-injured (n=15) experienced athletes participated in the experimental procedures with pain stimulation, RIII reflex, and VAS measurement, while emotional images (neutral, pleasure, and unpleasure) were randomly presented. The RIII reflex was measured simultaneously with TENS stimulation of the sural nerve while the OASIS images were presented, and the VAS was measured between the sets of images. Data were collected using electromyography (EMG) and VAS. RESULTS: The relationship between the group and the VAS score according to the emotional state was significant (p=.028), and the relationship between the group and the RIII reflex depending on the emotional state was not significant (p=.344). Furthermore, the relationship of the group “emotion” measurement was not significant (p=.081), but the results indicate toward a correlation. CONCLUSIONS: Athletes recognized more pain at the same intensity when their emotional state was unpleasant, but the RIII reflex was measured constantly so they could recognize less pain in an emotionally stable state. Despite some associations, no difference was observed in the degree of pain recognition based on injury experience

포스터 발표 - 무기재료분과 / 전기화학분과 / 촉매분과 : 플라즈마가상법에 의한 질화물 초미립자의 합성

오성민,박동화 한국공업화학회 1996 한국공업화학회 연구논문 초록집 Vol.1990 No.3

상향링크의 프레임 크기와 경쟁슬롯에 따른 BWA 프로토콜의 성능평가

오성민,김재현,Oh Sung-Min,Kim Jae-Hyun 한국통신학회 2004 韓國通信學會論文誌 Vol.29 No.11B

DOCSIS and IEEE 802.16 define the usage and element of a MAP which is uplink control message. Standards does not include the details of MAP size and the number of contention slots affecting the performance of MAC protocols for DOCSIS and IEEE 802.16. In this paper, we analyzed the performance of throughput and access delay according to the MAP size and contention slot size. Based on the analytical results, we found the optimal MAP size and the number of contention slots. We found that the protocol shows best performance when the MAP size is 2msec and the number of contention slots is 8. The simulation results can apply to the network system parameters. The simulator can be used to optimize the system parameters in cable network, BWA and WiBro. DOCSIS와 IEEE 802.16 MAC 프로토콜의 MAP 메시지는 CM의 상향 채널 데이터 전송 영역을 할당하므로 프로토콜 성능에 영향을 미치게 된다. 하지만 MAP의 구성요소와 용도에 대한 정의만 표준안에 언급이 되어있고, MAP 메시지의 크기나 MAP 메시지 내의 경쟁슬롯의 수에 대한 정의는 언급되어 있지 않다. 본 논문에서는 MAP의 크기와 경쟁슬롯의 수에 따른 프로토콜의 성능을 분석하곤 분석 결과를 바탕으로 최적의 MAP 크기와 경쟁슬롯의 수를 구하였다. 실험 결과로 MAP의 크기는 2msec이고 경쟁슬롯의 수는 8개일 때 최적의 프로토콜 성능을 보임을 알 수 있었다. 본 연구의 결과는 네트워크 시스템 파라미터로 사용할 수 있으며 실험에 사용하였던 시뮬레이터는 케이블 네트워크, BWA 및 WiBro 시스템 파라미터의 최적화에 사용할 수 있다.

보호계전기 정정을 위한 Open Interface 개념의 사용자 환경 설계

吳成民,崔勉松,李承宰 明知大學校 産業技術硏究所 2004 産業技術硏究所論文集 Vol.23 No.-

KEPCO is using power system protection business developing PROSET2000 to computerize synthesis. This system is database and synthesis computing program that have correction automation program etc., for protective relaying business. PROSET2000's Human Machine Interface(HMT) that is designed by GOMS could not reflect justly user's requirement. Studied new design method of HMI for fast penumbra of user's requirement. Apply and designs Open Interface technique in view of software methodology to solve problem of performance of existent PROSET2000 system. System developer can receive optimum service by offering interface(Meta Interface) that user can exhibit on outside, and change achievement strategy etc., that must select according to circumstance among embodiment contents in case apply Open Interface technique. Could reflect requirement of PROSET2000 development time shortening and user fast by developing HMI to Open Interface concept. Can improve PROSET2000 performance by selecting Open Interface concept.