• The Plant Pathology Journal
• /
• 제30권4호
• /
• pp.440-444
• /
• 2014

Iris yellow spot virus (IYSV) is a plant pathogenic virus which has been reported to continuously occur in onion bulbs, allium field crops, seed crops, lisianthus, and irises. In South Korea, IYSV is a "controlled" virus that has not been reported, and inspection is performed when crops of the genus Iris are imported into South Korea. In this study, reverse-transcription polymerase chain reaction (RT-PCR) and nested PCR inspection methods, which can detect IYSV, from imported crops of the genus Iris at quarantine sites, were developed. In addition, a modified positive plasmid, which can be used as a positive control during inspection, was developed. This modified plasmid can facilitate a more accurate inspection by enabling the examination of a laboratory contamination in an inspection system. The inspection methods that were developed in this study are expected to contribute, through the prompt and accurate inspection of IYSV at quarantine sites to the plant quarantine in South Korea.

• 한국원자력학회:학술대회논문집
• /
• 한국원자력학회 2005년도 춘계학술발표회
• /
• pp.1152-1153
• /
• 2005

• Corrosion Science and Technology
• /
• 제18권2호
• /
• pp.55-60
• /
• 2019

Corrosion failure in the convection part of peak load boiler (PLB) of the district heating system led to water leakage. Herein, Internal Rotary Inspection System (IRIS) inspection was employed to examine wall thinning and the cause of leakage in the flue tube. The corrosive products of the turbulator and tube were investigated using scanning electron microscope combined with energy dispersive spectroscopy, X-ray diffraction, and inductively coupled plasma (ICP). Majority of the serious corrosion damage was observed near the turbulator located in the upper flue tube. ICP analysis of the boiler water revealed oxide formation of sodium chloride in the lower end part of the flue tube. A cross-sectional view of the turbulator revealed the presence of double-layers of the oxide film, indicating environmental change during operation associated with water leakage. The outer surface of the turbulator consisted of the acid oxides such as $NO_x$ and $SO_x$ along with sodium and chloride ions. Dew-point corrosion is hypothesized as the main cause for the formation of acid oxides in the region of contact of the flue tube and the turbulator.

• 한국정밀공학회:학술대회논문집
• /
• 한국정밀공학회 2005년도 춘계학술대회 논문집
• /
• pp.1079-1082
• /
• 2005

This paper deals with the algorithm development that inspects defects such as Lens Focus, Focus check, Black Defect, Dark Defect, Dim Defect, Color Defect, and Line Defect, Angle Defect, IrisAgc Defect caused by the process of 2M Class Compact Camera Module (CCM). Domestic market was majorly comprised of VGA(0.3 million pixel) market. But in the middle of year 2004, camera phone with Mega Pixel has appeared, and it is estimated that the camera phone with Mega Pixel will take up to 28% of total phone sales if it is released in the end of year 2004. Since the inspection of finished products is done manually, it is major obstacle in production increment In this paper, to solve these problems, we developed the imaging processing algorithm to inspect the defects in captured image of assembled CCM. The performances of the developed inspection system and we can recognize various types of defect of CCM modules with good accuracy and high speed

• 대한한의진단학회지
• /
• 제18권2호
• /
• pp.75-84
• /
• 2014

Objectives Eyes, one of visual inspection regions, present important clues to pathological patterns including deficiency and excess patterns to the clinicians. The purpose of this study was to develop Eyes Inspection Questionnaire (EIQ) and to examine which items among the EIQ were more predictive of clinicians' determination for the deficiency and excess patterns. Methods Nine questionnaire items for Visual Inspection of Eyes were extracted through the literature review. These items were presented to the 4 Korean medical doctors who are specialized in visual inspection to conduct the Delphi method. The Korean medical doctors were asked to rate the importance of each items for the corresponding Visual Inspection of Eyes, using a Likert 5-point scale(the 3 points of importance as a cut-off point). Then, out of 75 photographs submitted to the Society of HyungSang Medicine in 2009, 30 portrait pictures were selected as samples. The samples were copied to make 60 sample pictures, and then randomly assigned to 4 clinicians. The 4 clinicians evaluated the 60 samples for excess and deficiency of the eyes and were asked to check the 6 questionnaire items. The results were recorded as 5-points-scale, and their average and standard deviations were calculated. Intra- class reliability test and multi regression test were performed using SPSS 13. Results Intra-class correlation coefficient (ICC) was between 0.750 to 0.841 (P<0.05). Indices for visual inspection of the eyes were: endowment of the bone structure around the eyes; brightness of the eyes; upward deviation of the eyes; eye shapes; and definition of iris. 76.92% of deficiency symptom patterns and 86.42% of the excess symptom patterns matched the patterns predicted by the visual inspection of the eyes, according to the frequency analysis. According to the multiple regression analysis, were significantly related to the excessive symptoms, and to the deficiency symptoms. Conclusion This study is the first attempt of development for checklist of excess and deficiency of Visual Inspection of Eyes and quantitative measurement of excess and deficiency using the Visual Inspection of Eyes by the visual inspection experts. Still, additional studies are needed regarding the relationship visual inspection methods have with existing standards of diagnosis.

• 정보처리학회논문지B
• /
• 제14B권2호
• /
• pp.71-80
• /
• 2007

본 논문에서는 웹 기반의 의료 정보를 제공하기 위한 한방 진단 시스템 중 얼굴형 및 혀 영역 추출, 설색 분석 방법에 대해 제안한다. 이는 초 고령화 사회를 맞아 의료 혜택의 대중화와 보편화가 사회적 요구 사항으로 대두되고 있으며 이를 IT 기술로 구현하기 위해 웹 기반의 망진 및 설진을 이용한 의료 정보를 제공하는 시스템을 구축하고자 한다. 통상 인체의 생체 신호를 반영하여 나타내어 주는 곳은 홍채나 혀, 오관 등이 있다. 이 중 본 논문은 개발하고자 하는 웹 기반의 질병 진단 중 관형과 찰색을 위한 얼굴형의 분류, 오관 영역의 주출과 영양분할 그리고 인간의 생체 신호가 집약적으로 나타나 있는 혀에 대해 설색을 추출하는 방법 등에 대해 제안하고자 한다. 끝으로 실험에 의해 제안한 방법의 유용성을 입증하고자 한다.

• 중소기업융합학회논문지
• /
• 제5권3호
• /
• pp.9-13
• /
• 2015

ICT 발달로 인해 면대면이 아닌 온라인 상에서 상대방의 신원을 확인하는 사용자인증 필요성이 증가하고 있다. 사용자인증은 보안의 기본으로 여러 분야에서 사용되고 있다. ID기반의 인증은 안전성과 분실 가능성이 많아 보안이 요구되어지는 곳에서는 2개 이상의 인증도구를 사용하게 된다. 최근에 ID나 OTP, SMS 인증보다 생체인증이 신뢰성 등에서 효과적인 측면으로 많이 고려되고 있다. 최근 생체인식 기술을 응용하여 적용되는 분야들이 다양하게 증가함에 따라 생체인식에 대한 적용도 모바일 결제 시스템, 지능형 CCTV, 출입국심사, 출입통제 등 다양한 분야에서 사용되고 있다. 생체인식으로는 지문, 홍체, 망막, 정맥 등에 이어 얼굴인식에 대한 연구가 활발히 이루어지고 있다. 본 논문에서는 얼굴인식 기술의 이해와 기술 동향를 비롯한 국내외 표준화 현황에 대해 알아보고 한다.