• 한국정보과학회:학술대회논문집
• /
• 한국정보과학회 2010년도 한국컴퓨터종합학술대회논문집 Vol.37 No.1(D)
• /
• pp.190-195
• /
• 2010

Vehicular ad hoc networks (VANETs) have a number of interesting applications to preserve road safety, notify users about changed road/traffic condition, handling post accident hazards and moreover service oriented applications to make the travel convenient to the drivers. Use of common information format for diverse applications enables the application developers to easily design flexible information dissemination system for new applications or add new features to existing application. This paper introduces a common information format for various applications in VANETs. The main goal of the paper is to design generalized distributed architectures for vehicular networks, which considers diverse application development scenarios and uses common information format. The proposed architectures enable the application developers to flexibly disseminate information to affected or interested user. In this paper, we have given a detail description of each component of the architectures and how they communicate with each other. In future, we will implement the proposed architecture using suitable simulator.

• Journal of Power Electronics
• /
• 제16권6호
• /
• pp.2076-2084
• /
• 2016

In this paper, a novel scheme to eliminate common-mode voltage (CMV) is proposed for three-level neutral-point clamped (NPC) inverters. In the proposed scheme, a low-power full-bridge converter is utilized to produce compensatory voltage for CMV, which is injected into an NPC inverter through a single-phase four-winding transformer. With the proposed circuit, the power range for applications is not limited, and the maximum modulation index of the inverter is not reduced. These features are suitable for high-power medium-voltage machine drives. The effectiveness of the proposed method is verified by simulation and experimental results.

• Journal of Power Electronics
• /
• 제16권3호
• /
• pp.1236-1243
• /
• 2016

This paper presents the analysis and design of an active electromagnetic interference (EMI) filter (AEF) for the common-mode (CM) noise reduction of switching power converters. The features of the several types of AEFs are discussed and compared in terms of implementation. The feed-forward AEF with a voltage-sensing and voltage-cancellation (VSVC) structure is implemented for an LLC resonant converter to replace a multiple-stage passive EMI filter and thereby reduce CM noise. The characteristics and performance of the VSVC-type AEF are investigated through theoretical and experimental works.

• 인지과학
• /
• 제19권4호
• /
• pp.499-517
• /
• 2008

본 논문에서는 한국어 감정 분류에 기반이 되는 감정 자질 추출의 효과적인 추출 방법을 제안하고 평가하여, 그 유용성을 보인다. 한국어 감정 자질 추출은 감정을 지닌 대표적인 어휘로부터 시작하여 확장할 수 있으며, 이와 같이 추출된 감정 자질들은 문서의 감정을 분류하는데 중요한 역할을 한다. 문서 감정 분류에 핵심이 되는 감정 자질의 추출을 위해서는 영어 단어 시소러스 유의어 정보를 이용하여 자질들을 확장하고, 영한사전을 이용하여 확장된 자질들을 번역하여 감정 자질들을 추출하였다. 추출된 한국어 감정 자질들을 평가하기 위하여, 이진 분류 기법인 지지 벡터 기계(Support Vector Machine)를 사용해서 한국어 감정 자질로 표현된 입력문서의 감정을 분류하였다. 실험 결과, 추출된 감정 자질을 사용한 경우가 일반적인 정보 검색에서 사용하는 내용어(Content Word) 기반의 자질을 사용한 경우보다 약 14.1%의 성능 향상을 보였다.

• 천문학회보
• /
• 제46권2호
• /
• pp.40.3-41
• /
• 2021

Minor mergers leave behind long lived, but extremely faint and extended tidal features including tails, streams, loops and plumes. These act as a fossil record for the host galaxy's past interactions, allowing us to infer recent accretion histories and place constraints on the properties and nature of a galaxy's dark matter halo. However, shallow imaging or small homogeneous samples of past surveys have resulted in weak observational constraints on the role of galaxy mergers and interactions in galaxy assembly. The Rubin Observatory, which is optimised to deliver fast, wide field-of-view imaging, will enable deep and unbiased observations over the 18,000 square degrees of the Legacy Survey of Space and Time (LSST), resulting in samples of potentially of millions of objects undergoing tidal interactions. Using realistic mock images produced with state-of-the-art cosmological simulations we perform a comprehensive theoretical investigation of the extended diffuse light around galaxies and galaxy groups down to low stellar mass densities. We consider the nature, frequency and visibility of tidal features and debris across a range of environments and stellar masses as well as their reliability as an indicator of galaxy accretion histories. We consider how observational biases such as projection effects, the point-spread-function and survey depth may effect the proper characterisation and measurement of tidal features, finding that LSST will be capable of recovering much of the flux found in the outskirts of L* galaxies at redshifts beyond local volume. In our simulated sample, tidal features are ubiquitous In L* galaxies and remain common even at significantly lower masses (M*>10^10 Msun). The fraction of stellar mass found in tidal features increases towards higher masses, rising to 5-10% for the most massive objects in our sample (M*~10^11.5 Msun). Such objects frequently exhibit many distinct tidal features often with complex morphologies, becoming increasingly numerous with increased depth. The interpretation and characterisation of such features can vary significantly with orientation and imaging depth. Our findings demonstrate the importance of accounting for the biases that arise from projection effects and surface-brightness limits and suggest that, even after the LSST is complete, much of the discovery space in low surface-brightness Universe will remain to be explored.

• Clinical and Experimental Pediatrics
• /
• 제48권7호
• /
• pp.723-730
• /
• 2005

목 적 : 바이러스성 호흡기 감염이 유행하는 2003년 겨울철 소아의 하기도 감염증의 원인 바이러스를 규명하고, 그 임상 양상을 분석하여 환아의 진단, 경과 예측 및 치료에 도움이 되고자 본 연구를 시행하였다. 방 법 : 2003년 10월부터 2004년 3월까지 크룹, 기관기관지염, 세기관지염, 폐렴 등의 급성 하기도 감염증으로 삼성제일병원 소아과에 입원한 253례를 대상으로 비인두 흡입물을 채취하여 간접 면역 형광검사에 의해 바이러스가 확진된 92례를 대상으로 임상증상, 진찰소견, 방사선 소견, 혈액검사 소견을 의무기록을 중심으로 후향적으로 분석하였다. 결 과 : 1) 호흡기 바이러스 검사를 실시한 253례 중 92례에서 호흡기 바이러스를 검출하여 검출률 36.4%이었고, 이중 RSV가 76.0%로 가장 많았고, ADV가 12.0%, INFA가 9.8%, INFB와 PIV가 각각 1.1%였다. 이중 혼합 감염은 없었다. 2) 대상 환아의 남녀비는 1.4 : 1이었고, 연령의 분포는 20일된 신생아에서 8.3세까지 분포하였으며, 평균 연령은 13.7개월로 84.8%가 2세 미만이었다. 2세 미만에서 많았던 원인 바이러스는 RSV였다. 3) 임상진단은 폐렴이 56.5%로 가장 많았고, 세기관지염이 35.8%, 크룹이 3.3%, 기관기관지염이 4.3%였다. RSV, INFA가 폐렴의 주된 원인 바이러스였고, RSV는 세기관지염의 주된 원인 바이러스였다. 4) 임상증상 및 징후로는 기침(98.8%), 비루(82.6%), 발열(70.7%), 객담(33.7%), 설사(21.7%), 구토(10.9%), 수포음(67.4%), 흉곽함몰(28.3%), 천명(29.3%), 청색증(4.3%) 등이 있었다. 대상환아의 17.4%에서 $38.5^{\circ}C$ 이상의 고열을 보였고, 23.9%에서 발열이 5일 이상 지속되었다. INFA와 ADV의 발열 양상은 $38.5^{\circ}C$의 고열이 5일 이상 지속되는 경향을 보였다. 청색증은 RSV에서 유일하게 관찰되었다. 5) 백혈구수 이상을 보인 경우는 22.8%였고, 백혈구수의 감소($<5{\times}10^3/{\mu}L$)를 보인 경우는 8.7%였으며, 원인 바이러스로는 ADV가 가장 많았다. 백혈구수의 증가($>14{\times}10^3/{\mu}L$)를 보인 경우는 14.1%였고, 원인 바이러스로는 INFA가 가장 많았다. CRP가 4.0 mg/dL 이상으로 증가된 경우는 13.0%로 원인 바이러스로는 ADV가 많았다. 간효소치의 증가는 10.9%에서 있었고, 원인 바이러스는 RSV가 많았다. 결 론 : 2003년 겨울철 바이러스성 하기도 감염증의 주된 원인 바이러스는 RSV, ADV, INF A/B, PIV였으며, 각각의 바이러스가 보이는 임상 양상은 지속적인 발열, 청색증, 증가된 염증반응 소견, 간기능 이상 등으로 다양하였고, 또한 임상 진단에도 바이러스간에 차이가 있었다. 이러한 바이러스성 하기도 감염증의 원인에 따른 임상 양상의 차이를 인식하고, 이에 대한 관찰이 환아의 경과 예측, 진단 및 치료에 도움이 될 것으로 사료된다.

• 복식
• /
• 제50권
• /
• pp.51-68
• /
• 2000

This study is intended to examine the common features of costume images in science-fiction (SF) movies that deal with current socio-cultural situations by examining their themes and tones about the future it can be generally concluded that costume images of SF movies are divided into two patterns : one inheriting traditional styles constructed on linear progress and the other based on dismantiling the tradition. this analysis is made through the research of actual cinematic contexts on the common features of multiple styles shaping the two patterns of costume images. The results can be summarized as the following: The former is related with the future built up on the basis of belief in reasonal progress rooted in the Enlightenment reasonable plan for ideal social order and strong faith in uniformity. So It shows functional uniformity disregarding wasteful competitiveness in consumption and luxuriousness and clothing that has the aesthetic value of purity without emphasizing human body or sensuality are presented. On the other hand SF movies which show the uncertain costume image as the meaning of dismantling of tradition take up a rather critical view of assumption that society can move toward utopian future as it searches future images in the notion of hetero-topia by emphasizing pluralism consequently as for clothing diversity and uncertainty in post-modern style are presented destroying modernistic dichotomy and the assumption of Utopian clothing made in the notion of modern progressivism.

• 복식문화연구
• /
• 제10권3호
• /
• pp.283-292
• /
• 2002

This study is to examine the costume and features in Asuka period and the results are as follows. Asuka period is the time that the country loader positively imported the continental civilization, founded a new country organization in political society and accepted Buddhism and exerted his best passion for its thriving. As the result of examining the costume and features of Asuka period when the requirement for accepting the foreign culture was met via the present costume regulation and relics material, it was found that the costume had a considerable difference between of the ruling classes with government official and noble as the center and the common people. As for the costume of the ruling-classed official and noble, Korean and Chinese costume regulation was introduced, court dress, ceremonial dress, and uniform were dressed. The composition of costume with introduction of new clothes including Wio, Baedang, Seup, Pil, Kyongsang, for the ruling classes was diversified as well. As the result of looking the clothes for the present ruling classes via the existing and the contemporary relics, it was found that the clothes consisted of Eui and Gon or Eui and Sang style in principle and Po with Banryung or Sooryung was worn over what. However, for the common people, mainly man wore Eui and Gon and woman Eui and Sang, which was the traditional costume style in the ancient tomb days.

• Asian Pacific Journal of Cancer Prevention
• /
• 제17권9호
• /
• pp.4213-4216
• /
• 2016

The incidence and prevalence, the second most common lymphoid malignancy after leukemia, are both increasing. The distribution of lymphoma varies among sexes, age groups, and sites. In Indonesia, information about the incidence of lymphoma and its characteristics are insufficient. Therefore, this study was performed to evaluate the incidence of lymphoma and features based on age group, sex, site, clinical diagnosis, and histopathological type in Indonesia. This study is an observational analytical study with a cross-sectional design aimed to evaluate the histopathological profile of lymphoma in Yogyakarta from 2010-2014. It was based on secondary data from Anatomic Pathology Department's medical records from several hospitals and laboratories. The result showed an increased incidence of lymphoma in Yogyakarta in 2010-2014 (p=0.039). Lymphoma mostly occurred in age range 45-64 years (p=0.004), dominated by male with ratio 1.6:1. DLBCL was found to be the most common histopathological type (44.4%). Sex, age, and clinical diagnosis demonstrated statistically significant correlations with the histopathological type (p<0.001). In conclusion, the incidence of lymphoma has significantly increased from 2010-2014. There are statistically significant correlations between gender, age, and clinical diagnosis with the histopathological type of lymphoma.

• 한국실내디자인학회논문집
• /
• 제15권4호
• /
• pp.29-36
• /
• 2006

Fashion and interior architecture are two areas of design that may share common issues, trends and philosophies, making fashion design human's second skin and interior architecture the third. The concept of 'skin' has become one of the most interesting phenomena in design during the past decade and not surprisingly similar issues can be seen also in fashion and architectural design. The current trend in fashion design is that the skin (clothing) has become detached from the human body and extended into the environment, resulting fashion as art objects. Skin in architecture and interior design has also become detached from the structure so designers have more freedom to experiment by using advanced technologies. The present study attempts to analyze common features of 'skin phenomenon' in fashion and interior architecture that are; detachment, emphasis on space, extension, territorial blending, and digital applications. The researcher has used constant comparative method to categorize the five features among many examples. The limitation of this study is that it is focused on the formative phenomena of projects excluding the philosophies and personal background of each designer. However, it is hoped that the study may assist designers and other researchers to understand relationships between fashion and interior design, hold broader spectrum in art and design.