• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• 제8권2호
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• pp.183-198
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• 1997

본 연구는 일반 청소년은 물론 문제 행동을 나타낼 가능성이 보다 높은 소위 비행청소년을 대상으로, 도덕발달수준을 평가할 수 있는, 신뢰도와 타당도가 갖추어진 평가도구를 개발함에 그 목적이 있다. 연구대상은 개발하고자 하는 평가도구이며, 중학교 1학년에서 고등학교 3학년까지 남녀 한 학급씩을 무작위 선정한 507명을 포함하여 품행장애군과 정신과 환자대조군 각 28명씩을 검사대상으로 하였다. 연구방법으로는 우선 평가도구의 골격이 되는 Rest의 원문에 관하여 그 검사도구의 제작 및 신뢰도와 타당도 검사 과정과 결과를 숙지하였다. 그 다음으로 우리의 문화와 정서에 맞는 이야기 구성을 하였는데, 이 과정에서는 정신과 전문의 두 명과 임상심리학 전문가 한 명과의 의견교환 및 자문으로 작성하였다. 일차적으로 만들어진 평가도구는 중학생 여섯 명을 대상으로 사전검사를 실시하였으며 사전검사에서 나타난 보다 실제적 측면에서 평가도구의 문제점을 검토하여 최종 평가도구를 구성하였다. 최종완성된 평가도구의 타당도 평가에는 세 가지 방법이 사용되었는데, 첫째로 구성타당도를 살펴본 결과, 발달에 따른 구성 요인의 변화를 보기 위하여 학년의 증가에 따른 도덕발달수준의 증가 여부를 살펴보았는데, 학년의 증가라는 발달에 따라 본 연구의 구성 요인이라고 할 수 있는 도덕적 판단능력의 분명한 증가를 확인할 수 있었다. 둘째로 기존의 간이형 설문도구와 비교하여 보는 공존타당도를 보았는데, 두 도구간의 상관계수는 0.87이었다. 세째로 변별타당도는 품행장애군, 정신과 환자대조군, 정상대조군 각 28명씩을 대상으로 시행한 성적을 비교분석으로 평가하였는바, 품행장애군과 다른 두 군간의 유의한 차이를 확인할 수 있었다. 신뢰도 평가를 위하여 정상 청소년 42명과 품행장애군 28명을 대상으로 3주 간격으로 검사-재검사를 시행하여 평가분석하였는데, 그 상관계수는 정상군에서는 0.88, 품행장애군에서는 0.63이었다. 각 이야기와 전체간의 상관 정도를 측정하여 내적일치도를 구한 결과 Cronbach’s alpha가 0.71이었다.

• Radiation Oncology Journal
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• 제13권1호
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• pp.55-61
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• 1995

Purpose : Despite a development of therapeutic machines and advance in modern radiation therapy techniques, locally advanced cervical carcinoma has shown high rate of local failure and poor survival rate, Combination of chemotherapy and radiotherapy demonstrated benefit in improving local control and possibly the overall survival. Our study was performed to evaluate effect of concurrent chemoradiation on locally advanced uterine cervical cancer. Methods and Materials : Twenty six patients with locally advanced stage(FIGO stage IIB with ${\geq}5cm$ in diameter, III, IVA) were treated with combination of radiation therapy and concurrent cisplatinum between May of 1988 and September of 1993 at our hospital. Radiation therapy consisted of external irradiaton and 1-2 sessions of intracavitary irradiation. Cisplatinum was administered in bolus injection of 25mg/$m^2$ at weekly intervals during the course of external radiation therapy. Results : Of the 26 Patients, twenty-five patients were evaluable for estimation of response. Median follow-up period was 25 months with ranges from 3 to 73 months. Stage IIB, III, and IVA were 16, 5, 4 patients, respectively, Twenty patients were squamous cell carcinoma. Response was noted in all 25 patients: complete response(CR) in 17/25($68\%$), Partial response(PR) in 8/25($32\%$). Of the 24 patients except one who died of sepsis at 3 months follow-up, seventeen patients($70.8\%$) maintained local control in the pelvis: 16/17($94.1\%$) in CR, 1/17($14.3\%$) in PR. Fourteen of the 17 patients with CR are alive disease free on the completion of follow-up. Median survival is 28 months for CR and 15 months for PR. Analysis of 5-year survival by stage shows 11/16($59.8\%$) in IIB, 3/5($60.0\%$) in III, and 1/4($25.0\%$) in IVA. Overall 5-year survival rate was $55.2\%$. Ten patients recurred: 4 at locoregional, 3 in distant metastasis and 3 with locoregional and distant site. Toxicity by addition of cisplatinum was not excessive. Conclusion : Although the result of this study was obtained from small number of patients, it is rather encouraging in view of markedly improved response rate compared with the results of historical group.

• International Journal of Oral Biology
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• 제43권1호
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• pp.13-21
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• 2018

Radiotherapy (RT) is a mainstay in the treatment of head and neck squamous cell carcinoma (HNSCC). For locally advanced HCSCC, concurrent chemoradiotherapy (CCRT) benefits HCSCC patients in terms of better survival and loco-regional control. In this study, we evaluated changes in oral microbiota in patients, who received CCRT for head and neck cancer. Oral rinsed samples were weekly collected before and during CCRT and at 4 weeks following treatment from HNSCC patients, who had received 70 Gy of radiation delivered to the primary sites for over 7 weeks and concurrent chemotherapy. Oral microbiota changes in three patients were analyzed by next-generation sequencing using 16S rRNA 454 pyrosequencing. On an average, 15,000 partial 16S rRNA gene sequences were obtained from each sample. All sequences fell into 11 different bacterial phyla. During early CCRT, the microbial diversity gradually decreased. In a patient, who did not receive any antibiotics during the CCRT, Firmicutes and Proteobacteria were the most abundant phylum. During the early CCRT, proteobacteria gradually decreased while Firmicutes increased. During the late CCRT, firmicutes gradually decreased while Bacteroides and Fusobacteria increased. In all the patients, yellow complex showed a gradual decrease, while orange and red complex showed a gradual increase during the CCRT. At 4 weeks after CCRT, the recovery of oral microbiota diversity was limited. During CCRT, there was a gradual increase in major periodontopathogens in association with the deterioration of the oral hygiene. Henceforth, it is proposed that understanding oral microbiota shift should provide better information for the development of effective oral care programs for patients receiving CCRT for HNSCC.

• 한국CDE학회논문집
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• 제1권3호
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• pp.177-188
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• 1996

An approach to providing computational support with an expert shell is discussed with the scope of an industrial wire harness design, especially at a manufacturing stage. Key issues include the development of an architecture that supports a frequent design change among engineers associated with different parts of the wiring design process and the development of hierarchical representations that capture the different characteristics (e.g., connectivity, configuration) of the harnesses. The abstraction of design information results in features, while the abstraction of drawing elements leads to the definition of objects. These abstractions are essential for efficient transactions among people and computer tools in a domain that involves numerous interacting constraints. In this paper the strategy for the problem decomposition, the definition of features, and the ways in which features are shared by various operations and design changes, are discussed. We conclude with a discussion of some of the issues raised by the project and the steps underway to address them.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 1998년도 추계종합학술대회 논문집
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• pp.285-288
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• 1998

In this paper, we present mSROS(Micro-Scalable Realtime Operating System) to be applied commonly to the device controller systems in the HANbit ACE256 system. The device controller systems in HANbit ACE256 system are organized as many kinds of device controller. Applying modified PPOS(Peripheral Processor Operating System)which is an operating system for devices of the TDX-10 switching system to the firmwares for them, the inefficiency in development and maintenance exists inherently. To remove the inefficiency nd to improve the performqance of firmwares, we build a common operating system platform that including multi-tasking microkernel so that the firmwares among devices can acquire convenient development and cheap cost of maintencance. Especially, building a virtual machine as a development methodology, it is possible to remove dependency from the kernel so that any kinds of commercial real-time kernels can be used in mSROS as a basic kernel. The virtual machine in mSROS is compatible with the API of SROS(Scalable Realtime Operating System), PPOS, and CROS(Concurrent Realtime Operating System).

• 한국임상수의학회지
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• 제23권3호
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• pp.371-374
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• 2006

A 4-month-old, intact male, Tosa with a history of a regurgitation, vomiting, and weight loss for three weeks was presented to Animal Medical Center, Chonbuk National University. In Serial plain radiographs, a severely distended stomach was seen and ultrasonogram revealed a nonfunctional pylorus with normal layer comparable with an obstruction of pyloric region by pyloric achalasia. An esophagram and endoscopy revealed normal peristalsis with failure of the lower esophageal sphincter to open, supporting the diagnosis of esophageal achalasia. Megaesophagus was observed on reradiograph and esophagram 11 days later. The clinical signs and esophageal dilation were resolved without resorting to any treatment.

• 아동학회지
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• 제23권4호
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• pp.227-248
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• 2002

The purpose of this study aimed at establishing the validity and reliability regarding the instrument of assessing child psychological well-being. The child psychological well-being rating scale contained 3 dimensions (sense of competency, sense of relation, sense of improvement) 8 variables (sense of control, sense of achievement, sense of confidence, sense of acceptance, sense of intimacy, sense of balance, sense of morale, sense of hope) and 4 rating scale of 80 items. After the scale development, the estimates of reliability for the scale were high. Cornbach ${\alpha}$ was .962 and generalizability was .875. And concurrent validity, criteria related validity, and discriminant validity appeared to be evident sufficiently to the validity of child psychological well-being instrument. The significance of the present study was intended to apply scale validity procedure by using generalizability.

• International Journal of Naval Architecture and Ocean Engineering
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• 제4권1호
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• pp.33-43
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• 2012

In this paper, a prototype of ship basic planning system is implemented for the small and medium sized shipyards based on the internet technology and concurrent engineering concept. The system is designed from the user requirements. Consequently, standardized development environment and tools are selected. These tools are used for the system development to define and evaluate core application technologies. The system will contribute to increasing competitiveness of small and medium sized shipyards in the 21st century industrial en-vironment.

• 전자통신동향분석
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• 제39권2호
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• pp.1-11
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• 2024

The metaverse is expected to evolve into an immersive environment based on photorealistic stereoscopic imaging to integrate real and virtual worlds. To transition from flat images to immersive stereoscopic images, such as light fields and holograms, a continuous cycle of technological development should be reached in media, content, and device technologies, ranging from acquisition and generation to transmission and synthesis as well as reproduction and interaction. Additionally, owing to the multitude of components involved in the metaverse, proper service realization will be challenging without concurrent advancements in computing and communication technologies that facilitate the integration of such components. We introduce research and development trends in media, contents, and devices at the Electronics and Telecommunications Research Institute toward the next generation of stereoscopic images.

• 한국통신학회논문지
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• 제25권8A호
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• pp.1104-1114
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• 2000

중요한 일을 처리하는 제어 시스템에서 고장이 발생하여 제어기 중단될 경우 큰 경제적 손실이 발생한다 이런 경우에 대비하여 고 신뢰도 보장을 위한 시스템의 이중화에서는 이중화 기능을 갖는 전용 운영체제를 직접 만들었는데 이는 많은 개발 비용과 유지보수 비용을 필요로한다. 이중화 기능을 사용자 수준에서 지원하고 상용 운영체제를 이용하면 운영체제와 개발환경을 만드는데 필요한 비용과 시간을 줄일수 있다 이에 본 논문에서는 상용 운영체제를 이용한 시스템의 이중화 방법을 제시한다 본 논문에서는 설명하는 시스템의 제어국 시스템으로서 동시쓰기 메모리를 이용하는 이중화 구조이며 VxWorks를 운영체제로 사용한다 이중화를 지원하는 태스크들이 선점되지 않고 즉시 수행될수 있도록 하는 방법 스탠바이가 부팅한 후 액트브와 메모리를 동기화하는 방법 사용자가 동시쓰기 메모리를 쉽게 사용할수 있도록 VxWorks의 파티션을 이용하는 방법을 제시한다 그리고 액티브의 하드웨어와 소프트웨어가 하드웨어 고장을 감지했을 때의 절체방법과 스탠바이가 액티브의 고장을 감지했을때의 절체 방법을 설명한다.