• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2013년도 춘계학술발표대회
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• pp.722-725
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• 2013

최근 시퀀싱 기술의 발전으로 생물 데이터는 폭발적으로 증가되고 있으며 이로 인하여 우리는 지놈 시대를 지나 특정 환경 내에 존재하는 생물체들의 총체적인 지놈을 다루는 메타지놈 시대에 살고 있다. 그러나 메타지노믹 데이터의 증가속도에 비해 이를 효율적으로 분석, 검토, 판별할 수 있는 파이프라인 형태의 프로그램은 전무한 실정이다. 또한, 기존 프로그램은 대부분의 관련연구자들이 다루기 힘든 리눅스 환경의 커맨드 라인 방식이며 대용량 데이터를 처리할 수 없는 제한과 처리 속도의 한계성을 가지고 있다. 이러한 문제점들을 해결하고자 윈도우 환경의 직관적인 그래픽 사용자 인터페이스로 유기적인 데이터 분석이 가능한 메타지노믹 데이터 분석 파이프라인을 설계하고 구현하였다.

• Asian Pacific Journal of Cancer Prevention
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• 제13권12호
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• pp.6077-6081
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• 2012

Background: This study was performed to analyze the prognostic implications of pretreatment or preoperative thrombocytosis in women with gynecologic malignancies. Material and Methods: We surveyed 2 medical databases, PubMed and EMBASE, to identified all relevant studies. A total of 14 (n=3,490) that evaluated the link between thrombocytosis and 5-year survival were included. REVMAN version 5.1 was used for our analysis and publication bias was evaluated using the Begg's funnel plot and tested by STATA 11.0. Risk ratios (RRs) with 95% confidence intervals (CIs) generated by the random effect model were used to assess the strength of any association. Results: 709(20.3%) of the 3,490 patients exhibited thrombocytosis (platelet counts > $400{\times}10^9/L$) at primary diagnosis, and their mortality was 1.62-fold higher compared with the others (RR=1.62, 95%CI=[1.28-2.05], p<0.0001). Thrombocytosis failed to have a stronger effect on the survival of advanced patients of stages III to IV in our study (n=478, RR=1.29, 95% CI=[1.13-1.48], p=0.0003), nor in women with cervical cancer in stage IB (n=1371, RR=1.73, 95% CI=[1.71-2.58], p=0.007). In addition, when adjusted for different carcinoma, it was associated with worse prognosis for all except the ones with vulvar cancer (n=201, RR=0.43, 95% CI=[0.14-1.29], p=0.13). Conclusions: This meta-analysis indicated that thrombocytosis might be associated with a worse prognosis for patients with gynecologic malignancies but without specificity or sensitivity for the ones in advanced stage. When adjusted for different gynecologic malignancies, it showed a significant effect on survival of all except vulvar cancers.

• 디지털융복합연구
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• 제10권11호
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• pp.427-432
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• 2012

본 연구는 복합저장소 구축 방법과 복합지식 프로세스 개발을 위한 기술적 방법을 제안하였다. 본 연구에서 제안한 복합지식 저장소에 저장되는 데이터 대상은 복합지식 메타데이터와 디지털 자원 모두를 포함하며, 사용목적에 따라 사용자 역할, 기능적 요소, 서비스 범주로 나눌 수 있다. 이 세 가지 요소는 저장소의 추상적 모델을 설명하는 기본적인 구성요소이다. 본 연구에서는 복합지식의 메타데이터를 2가지 요소로 구분하여 정의하였다. Component는 지식을 사용하고 생성하는 주체나 활동단위, 리소스 자체 등에 대한 속성을 나타내고, Context는 지식객체가 포함되어 있는 맥락을 나타낸다. 복합지식 프로세스 Agent는 복합지식의 분류와 등록, 검색, 패턴 정보 관리 등의 역할을 수행하고 복합지식 저장소와 사용자 사이의 데이터 흐름과 처리를 담당한다. 복합지식 프로세스 Agent는 데이터의 검색과 추출, 분산 환경에서 데이터 교환을 위한 데이터의 수집과 출력, 저장된 데이터의 추가, 변경 등이 발생한 것을 알려주는 경고, 데이터의 저장과 등록, 메타데이터 조회 후 원하는 물리적 자료를 요청하는 요청과 전달 등의 기능으로 구성하였다. 본 연구에서 개발하고자하는 추천시스템을 위한 복합지식저장소 구축은 산업 현장에서 적시에 다양한 콘텐츠를 사용자에게 제시함으로서 일과 학습이 동시에 일어날 수 있도록 하여 시의적절한 지식을 실시간 가시화함으로써 학습 생산성을 증대하는데 도움을 줄 수 있다.

• 한방안이비인후피부과학회지
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• 제35권4호
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• pp.139-162
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• 2022

Objectives : The review was conducted to validate the effectiveness of herbal medicines on acne. Methods : Randomized controlled trials(RCTs) reporting the effects of herbal medicine treatment on acne were searched through seven electronic databases from the time of application of the material to October 2021. Cochrane Collaboration's Risk of Bias was used to assess the risk of bias. Analysis was performed using Review Manager 5.4 and R 4.1.0 Meta, Metafor program. Results : 34 RCTs was selected and meta-analysis was performed with 30 studies. The inflammatory lesion count of the herbal medicine(MD=0.29, 95% CI:-0.59-0.01, p<0.01, I²=80%) and the non inflammatory lesion count of herbal medicine(MD=-0.30, 95% CI:-0.70-0.10, p<0.01, I²=78%) were seen. The score of IGA(RR=1.43, 95% CI:0.90-2.27, p<0.91, I²=0%), VISIA(MD=0.36, 95% CI:0.21-0.51, p=0.07, I²=40%), effective rate(RR=1.23, 95% CI:1.05-1.44, p<0.01, I²=98%), DLQI(MD : 0.59, 95% CI:0.14-1.04, p=0.07, I²=63%) and recurrence rate(RR=0.36, 95% CI:0.23-0.58, p=0.73, I²=0%) were seen. The effective rate of herbal medicine were statistically higher that of the control group(WM)(RR=1.19, 95% CI:1.04-1.37, p<0.01, I²=97%). As a result of dividing the treatment groups into OHM, EHM, and OEHM, the EHM group(RR=1.17, 95% CI:0.79-1.72, p<0.01, I²=99%) showed the most statistically significant effect. The overall risk of bias of the included studies was some concerns. No serious adverse effects were observed. Conclusions : This review found the effectiveness of herbal medicine for acne.

• 한국사회복지학회:학술대회논문집
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• 한국사회복지학회 2004년도 춘계학술대회 자료집
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• pp.705-731
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• 2004

This study is to be used for research material for pastoral counseling, by analyzing grounded-theoretically how substance abusers' awareness of self and experience of relations affects problems in abusing drugs. The subject of this study was chosen as 9 prisoners who were able to participate in group counseling, among those who were in prison for substance abuse and had more than 6 months of penal servitude left. In addition, in order to indicate counseling research methods through this study, 12 group counselings were carried out during October 24th. 2002 and February 14th. 2003 and verbatim were written out to be used as original material. After the research material was analyzed, they could be categorized into 60 concepts on the whole from 'conflict' and 'constraining thinking' to 'rationalization' and 'avoidance'. When these concepts were organized into groups of similarity, there were all together 20 categories. From this study, it can be found that substance abusers had "problems about self" and "problems about relations". The factor which affected their use of drugs was the area of relations, where as henceforth their use of drugs, the situation in which they could not escape from the use of substances was affected by problems within the area of self. When facing such problems as substance abuse, the pastoral counselor must create a holding environment through counseling, and perform good enough mothering by being insightful and providing active support on the problem. They must also help one's growth into "an empathizing self", "an accepting self", "a trusting self", "a hopeful self", who can empathize, accept, trust and hope, through experience in separation from the problem, conversion, meta-communication, self-rumination, relations and inspiration of hope. Likewise, the church must be able to act as a "place of growth and skill" which aids in the forming of relations and helps to be aware of self through experience in, and understanding of, relations.

• 한국결정성장학회:학술대회논문집
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• 한국결정성장학회 1996년도 The 9th KACG Technical Annual Meeting and the 3rd Korea-Japan EMGS (Electronic Materials Growth Symposium)
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• pp.5-18
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• 1996

The solid state cesium ion source os alumino-silicate based zeolite which contains cerium. The material is an ionic conductor. Cesiums are stably stored in the material and one can extract the cesiums by applying electric field across the electrolyte. Cesium ion bombardment has the unique property of producing high negative ion yield. This ion source is used as the primary source for the production of a negative ion without any gas discharge or the need for a carrier gas. The deposition of materials as an ionic species in the energy range of 1.0 to 300eV is recently recognized as a very promising new thin film technique. This energetic non-thermal equilibrium deposition process produces films by “Kinetic Bonding / Energetic Condensation" mechansim not governed by the common place thermo-mechanical reaction. Under these highly non-equilibrium conditions meta-stable materials are realized and the negative ion is considered to be an optimum paeticle or tool for the purpose. This process differs fundamentally from the conventional ion beam assisted deposition (IBAD) technique such that the ion beam energy transfer to the deposition process is directly coupled the process. Since cesium ion beam sputter deposition process is forming materials with high kinetic energy of metal ion beams, the process provider following unique advantages:(1) to synthesize non thermal-equilibrium materials, (2) to form materials at lower processing temperature than used for conventional chemical of physical vapor deposition, (3) to deposit very uniform, dense, and good adhesive films (4) to make higher doposition rate, (5) to control the ion flux and ion energy independently. Solid state cesium ion beam sputter deposition system has been developed. This source is capable of producing variety of metal ion beams such as C, Si, W, Ta, Mo, Al, Au, Ag, Cr etc. Using this deposition system, several researches have been performed. (1) To produce superior quality amorphous diamond films (2) to produce carbon nitirde hard coatings(Carbon nitride is a new material whose hardness is comparable to the diamond and also has a very high thermal stability.) (3) to produce cesiated amorphous diamond thin film coated Si surface exhibiting negative electron affinity characteristics. In this presentation, the principles of solid state cesium ion beam sputter deposition and several applications of negative metal ion source will be introduced.

• 대한토목학회논문집
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• 제35권2호
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• pp.377-386
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• 2015

헬리컬 파일은 한 개 이상의 나선형 원판을 중공형 강재 축에 부착한 후 지반에 회전 관입시켜 지지력을 발현하게 하는 말뚝기초의 한 종류로서 별도로 천공작업 및 그라우팅을 필요로 하지 않고, 시공의 편의성과 말뚝 항타 등에 의한 소음이 없다는 장점이 있어 그 이용이 점차 증가되고 있는 추세이다. 본 연구에서는 Cylindrical shear method로 산정된 헬리컬 파일의 요구 지지력을 최소의 자재비용과 최적의 헬리컬 파일의 형상으로 발현할 수 있도록 하모니서치 알고리즘(Harmony search algorithm)을 적용하여 최적화된 설계법을 제안 하였다. 또한 헬리컬 파일의 최적 설계 결과를 2009 International building code (이하, 2009 IBC)를 참고하여 규격화시킨 설계 결과와 비교 검토하여 두 설계법의 경제성을 분석하였다. 본 논문의 재료비 최소화를 위한 헬리컬 파일 형상의 최적 설계 기법은 헬리컬 파일의 경제성을 향상하여 헬리컬 파일 시장 활성화에 기여할 수 있다.

• 패션비즈니스
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• 제27권2호
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• pp.70-87
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• 2023

Today, VR, AR, and MR technologies that travel between real world and virtual world are rapidly developing. These technologies are adopted in luxury fashion brands for virtual fashion shows and runways, virtual retail shops and virtual fitting services. Despite its growth potential and social importance, virtual fashion space has been studies insufficiently. Therefore, this study aimed to examine the consumer experience on the virtual fashion space types, components of virtual fashion space, perceived value, and continuous usage intention. Prada, one of the most active luxury fashion brands in the VR field, was selected as the stimulus for an in-depth interview. Participants experienced virtual fashion show space through VR device (Oculus Quest 2 from Meta) before responding to the questions about their experience. Results showed that material space was more like virtual whereas perceptual space felt like reality. Participants could imagine about more virtual image from material space and more real image from perceptual space elements. Moreover, perceptual space enhanced the immersion, presence, and interactivity compared to material space. Most participants perceived that the virtual fashion show was useful and playful, leading to the continuous usage intention. It implies that improvements for some technical limitation from VR device and virtual contents can provide quality consumer experience in the future. Based on results of this study, fashion companies can establish useful marketing strategies for consumers' immersive and playful experiences when introducing virtual fashion space.

• 한국전자파학회논문지
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• 제20권11호
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• pp.1161-1170
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• 2009

본 논문에서는 recursive method를 이용하여 A-Sandwich 레이돔 코어 물질을 유전체, 드루드(Drude) 모델, 이상적인 메타 물질로 각각 가정하고 레이돔의 특성을 비교 분석하였다. 기존의 유전체 레이돔보다 이상적인 메타물질을 사용함으로써 우수한 성능을 얻을 수 있음을 증명하였으며, 분산 메타 물질의 경우 물질 상수 변화가 작은 주파수 대역을 사용함으로써 유전체 레이돔보다 좋은 성능을 얻을 수 있음을 보였다. 또한 레이돔에 메타 물질을 적용하기 위한 스킨과의 관계 및 조건을 제안하였다. Ku band 주파수 대역에서 사용 가능한 레이돔을 분석하였으며, 레이돔의 주요 성능 파라미터인 삽입 손실, 삽입 위상 지연, 편파 부정합에 대해 유전체 레이돔과 메타 물질 레이돔의 전파 특성을 비교하였다. 코어가 주파수 분산 메타 물질일 경우 굴절 지수 -1과 가까운 주파수 대역에서 유전체를 코어로 갖는 레이돔에 비해 우수한 레이돔 성능을 가짐을 알 수 있었으며, 본 논문의 결과로부터 일반적인 유전체 레이돔에 비해 메타 물질 코어를 갖는 레이돔으로부터 개선된 전파 특성을 갖는 레이돔 특성을 얻을 수 있다는 것을 확인하였으며, 레이돔 설계 및 개발에 활용할 수 있다.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2007년도 하계학술대회 논문집 Vol.8
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• pp.429-429
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• 2007

In this study, it was investigated about the variation of luminance properties in LED backlight with geometrical shape such as prism or lens shape on the light-entering face. Generally, LED light source has the loss in backlight system because it has horizontal direction light. PMMA(Poly-Methyl-Meta-Acrylate) is used LGP(Light-Guide-Plate) in conventional backlight system. PMMA has low refraction angle. so that. horizontal direction light was not used in backlight system. The addition of geometrical shape in light-entering face in LGP improves the luminance characteristics because it prevents horizontal direction light generation in light-entering-face. Prism or lens shape in same pitch disposition was almost same without these treatment such as the value of 1% rising. Besides. It is particular that the gap of these shape such as the value of 0.407~0.22mm prevents horizontal direction light, so then it contributes luminance rising at 5.6%.