http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
차신(Shin Cha),정인상(In Sang Chung),권용래(Yong Rae Kwon) 한국정보과학회 1993 정보과학회논문지 Vol.20 No.8
순차적 프로그램의 복잡도를 측정하기 위한 많은 연구에도 불구하고 병행그램의 복잡도 척도에 관한 연구는 미미한 편이다. 본 논문에서는 병행 프로그램의 복잡도를 측정하기 위하여 정보이론에 근거를 둔 새로운 복잡도 척도를 제안한다. 제안된 복잡도 척도는 병행 프로그램을 복잡하게 만다는 요인으로 인식되는 정보량, 비결정성 및 동기화로부터 기인하는 복잡도를 측정한다. 제안된 복잡도 척도를 구하기 위하여 병행 프로그램의 표현 방법으로 병행 프로그램의 정적 분석에 이용되는 병행 그래프를 사용한다. 제안된 방법을 대표적인 병행 프로그램 언어인 Ada에 적용하여 그 유용성을 보여준다. Despite various researches for measuring the complexity of sequential programs, few attempts have been made to measure the complexity of concurrent programs. In this paper, we present new complexity metrics based on information theory which can measure the complexity of concurrent programs. Proposed metries measure primary factors influencing concurrent program's complexity such as information content, nondeterminism and intertasking. In order to compute the complexity, we use the concurrency graph previously developed for static analysis of concurrent programs. Using Ada as a model language, we show how to define proposed metrics and illustrate the implications with examples.
두경부 암환자의 방사선요법시 구강내 캔디다속에 대한 연구
Shin Jung Cha(車信正),Eui Wung Lee(李義雄),Jung Ho Yoon(尹仲鎬) 대한구강악안면외과학회 1980 대한구강악안면외과학회지 Vol.6 No.1
80 cases of head and neck cancer were subjected to oral culture for Candida species during radiotherapy in Yonsei Cancer Institute and Korea atomic Hospital. And 40 cases of healthy People were cultured as a control group. Irradiation was carried out using Co 60 TeleTherapy Units in all patients. Classification of Candida Genus was done using API 20 Candide Kits. The results were as follows, 1. Control group was revealed with 22.5 % positive culture of Candida. 2. Positive culture of Candida species on patients irradiated under 3000R was 30.8%. 3. Positive culture of Candida species on patients irradiated over 3000R was 50.0%. 4. 35 Candida species of eighty irradiated patients were consisted of 28 of C.albicans, 4 of C. tropicalis, each 1 of C.krusei, C. zeylanoids, and undetermined Candide sp. 5. Nine Candida species of forty control group were consisted of 5 of Candida albicans, 2 of C. guilliermondii, each 1 of C. zeylanoids and C. parapsilisis.
오디오/비디오 스트리밍을 지원하는 분산 객체 프레임워크 설계 및 구현
차신(Shin Cha),반덕훈(Duk-Hoon Bahn),김동성(Dong-Sung Kim),박연상(Yeon-Sang Park),이헌주(Huen-Joo Lee) 한국정보과학회 1999 정보과학회 컴퓨팅의 실제 논문지 Vol.5 No.4
본 논문은 객체지향형 분산처리 환경 하에서 오디오나 비디오 등과 같은 실시간(real-time) 스트림(stream) 데이타를 처리하는 데 필요한 소프트웨어 기반구조를 설계하고 구현한 내용을 기술한다. 본 논문에서는 제시한 DAViS(Distributed Object Framework supporting Audio/Video Streaming)는, 오디오/비디오 데이타의 처리와 관련된 여러 소프트웨어 구성요소들을 분산객체로 추상화하고, 그 객체들간의 제어정보 교환경로와 오디오/비디오 데이타 전송경로를 서로 분리하여 처리한다. 분산응용프로그램 작성자는 DAViS에서 제공하는 서비스들을 이용하여, 기존의 분산프로그래밍 환경이 제공하는 것과 동일한 수준에서 오디오/비디오 데이타에 대한 처리를 표현할 수 있다. DAViS는, 새로운 형식의 오디오/비디오 데이타를 처리하는 부분을 손쉽게 통합하고, 하부 네트워크의 전송기술이나 컴퓨터시스템 관련 기술의 진보를 신속하고 자연스럽게 수용할 수 있도록 하는 유연한 구조를 가지고 있다. This paper describes the design and implementation of software framework which supports the processing of real-time stream data like audio and video In distributed object-oriented computing environment. DAViS(Distributed Object Framework supporting Audio/Video Streaming), proposed in this paper, abstracts software components concerning the processing of audio/video data as distributed objects and separates the transmission path of data between them from that of control information. Based on DAViS, distributed applications can be written in the same abstract level as is provided by the existing distributed environment in handling audio/video data. DAViS has a flexible internal structure enough to easily incorporate new types of audio/video data and to rapidly accommodate the progress of underlying network and computer system technology with very little modifications.
Shin Jung Cha(車信正),Dai Suck Oh(吳大錫),Han Joon Choi(崔漢俊) 대한구강악안면외과학회 1982 대한구강악안면외과학회지 Vol.8 No.1
A 37-year-old woman was admitted to dental dept., Seoul Red-Cross Hospital on 14th Oct. 1981 for treatment of small cystic formation on the mucosa of the lower lip. There was no subjective symptoms and 0.9×1.2 cm. sized mass showed mobile, slight hardness and no tenderness on palpation and no tendency to increase for two years. The cystic mass was removed by surgical intervention under clinical diagnosis of retention cyst. Histopathologically, cystic capsule contained a cysticercus of Taenia solium. Internal organ of this worn1 began degeneration and tissue reaction showed a diffuse histiocytic proliferation in inner zone and well formed collagenized capsule in outer zone. Final diagnosis revealed cysticercosis, intermediated stage.
ALLOXAN유도 당뇨백서의 혈청과 과립구가 CANDIDA ALBICANS에 미치는 영향에 관한 연구
차신정(Shin Jung Cha) 대한구강악안면외과학회 1984 대한구강악안면외과학회지 Vol.10 No.1
In the present study, investigations were undertaken whether the growth of Candida albicans is influenced by glucose, altered the serum factors and the granulocytes in diabetes mellitus. The rats were grouped into the normal, alloxan-diabetic, insulin-treated groups and bred with the commercial diets for 8 days. In the normal and insulin-treated groups, the body weights were gained 26 gm and 18 gm respectively, but in the alloxan-diabetic groups, the weights were lost 15 gm. The plasma glucose concentrations in the normal, alloxan-diabetic and insulin-treated groups were 153 ± 5 ㎎%, 386 ± 7㎎%, 114 ± 2㎎%. The growth rates of Candida albicans in the alloxan-diabetic groups were 1.18 ± 0.01 (1hr), 1.36 ± 0.02 (2hrs), 1.67 ± 0.03 (3hrs), 2.01 ± 0.07 (4hrs). These results were significantly higher than those of the normal groups (p < 0.05). In insulin-treated groups, the growth rates of Candida albicans were 1.13 ± 0.01 (1hr), 1.25 ± 0.01 (2hrs), 1.44 ± 0.01 (3hrs), 1.46 ± 0.01 (4hrs). These were significantly lower than those of the alloxan-diabetic groups (p < 0.05). The growth rates of C. albicans showed no significant difference between the normal and the insulin-treated groups. In the high glucose groups (400 ㎎%), the growth rates showed little difference with the normal, alloxan-treated, insulin-treated groups. In the control groups which had no added serum, the growth rates were much higher than those of the other experimental groups. The actual doubling time calculated from the growth curves obtained from the experimental groups revealed that the control groups without added serum (3.52 ± 0.07 hrs) were the shortest of all diet groups and alloxan-diabetic groups were the next. These results suggest that the growth rates of Candida albicans were influenced by some factors in serum and these factors might be decreased or impaired in the diabetic animals and through the administration of the insulin, these factors seemed to be recovered in serum. Also the glucose alone might not be the contributing factor for Candidal growth. The pagocytic capacities of the granulocytes showed no difference between the experimental groups. However, the killing capacities of the granulocytes from alloxan-diabetic groups were significantly lower as compared to the normal and insulin-treated group (p < 0.05). The specific activities of the myeloperoxidase were the same in the normal, alloxan-diabetic and insulin-treated groups. However, the protein volume were significantly lower in the alloxan-treated groups as compared to the normal and insulin-treated groups (p < 0.05). These results suggest that in diabetes mellitus, the phagocytic capacities are not altered but the intracellular killing capacities are decreased. Myeloperoxidase, one of the intracellular defense enzymes, was not changed in diabetes mellitus, but the protein volume in diabetic granulocyte which affectes on the myeloperoxidase concentration were decreased because of the lack of insulin in the alloxan-diabetic rats which leades to the generalized decrease in the intracellular killing activity of the granulocytes.
차영광,이일회,주흥진,신태용,박경태,Cha, Young-Kwang,Lee, Il-Hoi,Ju, Heung-Jin,Shin, Tae-Yong,Park, Kyong-Tae 한국전기전자재료학회 2021 전기전자재료학회논문지 Vol.34 No.1
Copper-chromium alloys have been used as contact materials of vacuum interrupters in circuit breakers, but new materials with highly stable performance are required to break the high voltage and high current barrier due to the recent increase in breaking capacity. In this paper, a new contact material was fabricated from a ternary alloy instead of existing Cu-Cr alloys. Its breaking performance and endurance were verified from a synthetic test and compared with that of various contact materials. The test results verified that the breaking performance of the new contact material was excellent.