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HLA 기반 대공유도무기 시뮬레이션 프레임워크 설계 및 사례적용
조병규,김세환,윤청,Cho, Byung-Gyu,Kim, Sae-Hwan,Youn, Cheong 한국정보처리학회 2005 정보처리학회논문지D Vol.12 No.5
예측 불가능한 미래 전략 환경에 부합하고, 보다 경제적이며 과학적인 수단으로 무기체계개발을 수행하기 위해 모델링 및 시뮬레이션 기술의 적용이 확대되고 있다. 본 연구는 모델링 및 시뮬레이션 표준연동구조인 HLA(High Level Architecture)및 TCP/IP를 지원하고, 실시간 분산 시뮬레이션을 지원하는 소프트웨어 프레임워크인 ADSF(Air Defense Simulation Framework)를 개발한 경험을 기술하고 있다. 개발된 ADSF는 대공유도무기 M-SAM(Medium Range Surface to Air Missile) 체계시뮬레이터에 적용하였으며, 위성항법장치(GPS : Global Positioning System) 시계를 사용하여 요구조건에 만족하는 시험결과를 산출하였다. 그 결과 ADSF는 HLA를 지원하고 실무기 체계의 통신 프로토콜인 TCP/IP를 지원하는 통신미들웨어가 만들어지고, 실시간 분산 시뮬레이션의 핵심 기술인 정밀모사를 지원하는 시뮬레이션 엔진도 갖추게 되었다. 대공유도무기 체계시뮬레이터는 다수의 구성요소로 이루어진 실시간 분산 시뮬레이션 시스템이므로 실시간 분산 시뮬레이션을 지원해 주는 시뮬레이션 엔진 개발이 요구되었다. To correspond with the unpredictable future tactical environment, Ive expanded the application of M&S(Modeling & Simulation) that is more scientific and more economic in a field of weapon system development process. This paper describes experience in development of ADSF(Air Defense Simulation Framework) that supports not only HLA(High Level Architecture) which is an international standard in M&S but also TCP/IP as well as real-time distributed simulation. ADSF has been applied to the M-SAM(Medium Range Surface to Air Missile) System Simulator, and satisfying test results through GPS(Global Positioning System) timer has been acquired. As a result, an ADSF which is able to support HLA and TCP/IP as veil as precise real-time simulation has been successfully made. we were in need or a real-time simulation engine to support Air Defense System Simulators that were consisted of several subsystems.
소프트웨어 프레임워크를 이용한 대공유도무기 실시간 분산 시뮬레이터 개발 및 분석
조병규,윤청,Cho, Byung-Gyu,Youn, Cheong 한국군사과학기술학회 2005 한국군사과학기술학회지 Vol.8 No.4
To overcome limitations of test scope, schedule and cost, M&S(Modeling & Simulation) technique has been applied for T&E(Test and Evaluation) of the state-of-art weapon systems. This paper proposes an air defense simulation software framework to reduce both redundancy an[1 programming errors in system simulator. The proposed framework consists of a 'model' and a 'middleware' The 'middleware' is a reliable communication service layer that supports not only HLA(High Level Architecture) which is an international standard in M&S but also TCP/IP, UDP and etc. The main role of 'model' is to schedule and to run the real-time distributed simulation. The proposed framework has been applied to M-SAM(Middle range Surface to Air Missile) system simulator. The proposed framework's scheduling and communication performance results are satisfactory and were measured by hardwired NTP(Network Timer Protocol) time-stamp with GPS(Global Positioning System) timer for better precision.
조병규(cho byung gyu),이경화(Lee Kyung hwa) 숭실대학교 영재교육연구소 2014 Global Creative Leader Vol.4 No.2
첨단 기술의 발전과 빠른 환경변화를 특징으로 하는 지식기반 사회에서 우리 학생들이 사회구성원으로서의 역할을 훌륭히 수행하여 성공적인 삶을 누리고, 기존 직업세계나 진로경로뿐만 아니라 창의적이고 대안적인 진로를 탐색할 수 있도록 사회분야 미래 진로영역의 역량을 개발하는 것이 꼭 필요하다. 이에 교육부에서는 학생들의 진로교육에 초점을 두고, 각 영역에서 필요로 하는 역량을 학교교육을 통해 함양하도록 하는 정책을 제안하였으며, 이경화 외(2014)는 사회영역에서 요구하는 핵심역량을 분석하여 이를 함양하기 위한 수업모델을 개발하였다. 본 연구는 이 연구의 기초연구로서 사회영역에서의 핵심역량을 도출하기 위한 델파이 연구로 진행되었다. 본 연구에서 도출된 초, 중, 고등학교 학급별 그리고 경영경제, 법률, 정치외교 등 진로분야 별로 핵심역량은 향후 초중등 학생들을 위한 참여형, 융합형 진로 교육프로그램 개발에 되는데 유용하게 활용될 수 있을 것이다. It is necessary to investigate the competency to develop vitally, so that The students can serve as members of society and enjoy a successful life in an era of creativity that is growing in importance. Under these circumstances this study is to derive the key competencies required in the social sectors such as economic, legal. Core competencies derived from this study can be used as a useful resource for the development of converged class model.
뇌반구에 위치한 양성신경교종의 악성전환에 대한 임상적 연구
조근태,곽호신,정희원,백선하,정영섭,김동규,조병규,Cho, Keun-Tae,Gwak, Ho-Shin,Jung, Hee-Won,Paek, Sun-Ha,Chung, Young Seob,Kim, Dong Gyu,Cho, Byung Kyu 대한신경외과학회 2001 Journal of Korean neurosurgical society Vol.30 No.7
Introduction : It has been reported that the survival of low-grade glioma patients depends upon the time of malignant transformation. The authors presents the clinical analysis of histologically proven trasformed gliomas. Materials and Method : A total 92 patients who were consecutively treated and histologically confirmed hemispheric low-grade gliomas between 1980 and 1998 were analyzed and followed. All cases meet the criteria of WHO glioma classification of grade II. Results : The mean follow-up period was 73 months. Twenty two among 92 cases(24%) were histologically proven to be transformed into malignant ones. The mean time to transformation was 56 months. The 5-year and 10-year survival rates of the transformed group were 66% and 30% respectively and significantly different from the survival rates of the non-transformed group(p=0.0018). Among clinical factors at presentation, the initial tumor volume had a tendency to be larger in the transformed group than that of the non-transformed group and became significant when it was divided into more than $30cm^3$ or not(p=0.02). Among therapeutic factors, the extent of removal had no influence on the rate of malignant transformation. But postoperative radiation therapy were more frequently given to the pre-transformed group than the non-transformed group and the frequency was significantly different(p=0.02). Conclusions : The authors had found that the initial tumor volume and radiation therapy could be clinical prognostic factors for the malignant transformation of low-grade gliomas.
박홍준,곽호신,황승균,김정은,이상형,정희원,김동규,조병규,Park, Hong-Jun,Gwak, Ho-Shin,Hwang, Sung-Kyun,Kim, Jeong Eun,Lee, Sang Hyung,Jung, Hee-Won,Kim, Dong Gyu,Cho, Byung-Kyu 대한신경외과학회 2001 Journal of Korean neurosurgical society Vol.30 No.9
Objective : Atypical and malignant meningiomas(AM, MM) are known to be rare and show aggressive behavior. Limited data are available concerning the clinical features, effectiveness of surgical removal and role of radiation therapy with AM, MM. The authors report our experience of AM, MM, with respect to clinical features. Methods : Twenty-four cases of AM and 28 cases of MM, who were operated between 1988 and 1999 were retro-spectively studied review of medical records and radiological findings. These were compared with control group of 24 cases of menigiomas manifestating usual clinical course, which are selected arbitrarily among operative cases between Apr. 1999 and Dec. 1999. Mean follow-up periods were 26(1-91) months for AM and 23(1-62) for MM. Authors analyzed the prognostic factors for survival, and statistical analysis were accomplished by Kaplan-Meier method and log-rank test. Results : Differences of clinical features between control groups and these atypical and malignant meningioma group were not significant. However, the location of MM was frequent in non-basal area(p<0.01). In AM, there were 4 patients of recurrence, and 3 patients of mortality. Among mortality cases, only one patient died of tumor progression, the other patients died of other causes. The survival at 2 year and 5 year in this group were 88% and 74% respectively, and in MM, 11 patients died due to tumor progression and 2 had spinal metastasis. The survival at 2 year and 5 year were 72% and 20%, respectively. For extent of resection, total removal(Simpson grade 1 or 2) was less often achieved in MM compared with AM(50% vs. 83%). Extent of resection of tumor and postoperative radiation therapy did not affect survival in both AM, MM. Conclusions : Clinical behavior of AM showed more benign than that of MM. Prognostic factor for survival is not related extent of resection of tumor and postoperative radiation therapy. However, further investigation with long-term follow-up and additional cases is mandatory.
조병규,백선하,김은상,정영섭,왕규창,한대희 대한신경외과학회 1991 Journal of Korean neurosurgical society Vol.20 No.12
An encephalocele is defined as a herniation of cranial contents through a defect in the skull. Encephaloceles are classified accroding to their contents and location. Encephalocele is a useful general term to refer to common features of the various forms of anomaly, but considerable differences exist in the pathology, treatment and prognosis of encephaloceles at each anatomical location. Improved neuroimaging facilities, especially MRI, make it easy not only to detect the encephalocele including its contents and location, but also to get preoperative informations. We have reviewed a total of 22 patients with encephalocele whom we have experienced from 1986, July to 1990, June. Twelve were at occipital location, six at cranial vault, three at cranial base, one at frontoethmoidal location. The size of cranium bifidum and herniating sac of the cranial vault and occipital location is larger than that of frontobasal location. The incidence of associated hydrocephalus is in order of occipital, cranial vault, frontobasal form, and its prognosis is also better in frontobasal form than in occipital of cranial vault form.