• 한국통신학회논문지
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• 제31권4C호
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• pp.407-416
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• 2006

카메라를 통한 객체의 움직임 검출은 불필요한 잡음이나 조명의 변화에 따라 정확한 움직임을 검출하는 것은 어렵다. 또한 객체의 유입 후 일정시간 동안 움직임이 없을 경우에는 배경으로 인식될 수도 있다. 따라서 실시간으로 입력되는 영상에서 정확한 객체를 추출하고 움직임을 검출할 수 있는 알고리즘이 필요하다. 본 논문에서는 객체의 정확한 움직임을 검출하기 위한 방법은 시간에 따라 변화하는 배경영상의 일부를 교체하고, 객체가 유입된 시점에서 객체의 영역을 추출하기 위하여 그물형 픽셀검사를 통하여 객체의 윤곽점을 추출한다. 추출된 윤곽점은 객체의 사각영역인 최소블록의 생성과 객체의 움직임을 빠르게 검출하기 위한 가변 탐색블록을 생성하여 정확한 객체의 움직임을 검출한다. 설계하고 구현한 시스템은 실험을 통한 성능평가에서 95% 이상의 높은 정확도를 보였다.

• The Plant Pathology Journal
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• 제31권2호
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• pp.108-114
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• 2015

Curvularia lunata is an important maize foliar fungal pathogen that distributes widely in maize growing area in China, and several key pathogenic factors have been isolated. An yeast two-hybrid (Y2H) library is a very useful platform to further unravel novel pathogenic factors in C. lunata. To construct a high-quality full length-expression cDNA library from the C. lunata for application to pathogenesis-related protein-protein interaction screening, total RNA was extracted. The SMART (Switching Mechanism At 5' end of the RNA Transcript) technique was used for cDNA synthesis. Double-stranded cDNA was ligated into the pGADT7-Rec vector with Herring Testes Carrier DNA using homologous recombination method. The ligation mixture was transformed into competent yeast AH109 cells to construct the primary cDNA library. Eventually, a high qualitative library was successfully established according to an evaluation on quality. The transformation efficiency was about $6.39{\times}10^5$ transformants/$3{\mu}g$ pGADT7-Rec. The titer of the primary cDNA library was $2.5{\times}10^8cfu/mL$. The numbers for the cDNA library was $2.46{\times}10^5$. Randomly picked clones show that the recombination rate was 88.24%. Gel electrophoresis results indicated that the fragments ranged from 0.4 kb to 3.0 kb. Melanin synthesis protein Brn1 (1,3,8-hydroxynaphthalene reductase) was used as a "bait" to test the sufficiency of the Y2H library. As a result, a cDNA clone encoding VelB protein that was known to be involved in the regulation of diverse cellular processes, including control of secondary metabolism containing melanin and toxin production in many filamentous fungi was identified. Further study on the exact role of the VelB gene is underway.

• 한국측량학회지
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• 제21권3호
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• pp.237-243
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• 2003

도시의 집중화로 인하여 도시미관이 중요시되면서 복잡한 지상시설물들을 지하에 매설하게 되었다 그러나 다양한 종류의 시설물들이 좁은 공간에 집중적으로 매설되면서 이들 시설물들에 대한 유지관리의 어려움과 부정확한 확인으로 인하여 빈번한 사고를 유발하고 있다. 따라서 본 연구에서는 우선 지하매설물의 탐사법을 비교평가하기 위해 현장실험모형을 구성하여 전자유도탐사법과 지중탐사법이 지하매설관거의 자료취득에 유용한 방법임을 확인할 수 있었다. RTK-GPS를 이용하여 지하매설물에 대해 실시간 평면 위치정보를 획득하여 재래적인 측량방법과 비교한 뒤 지하시설물도의 위치 정확도를 분석하였다. 또한, ArcView를 이용하여 지하시설물의 3차원위치와 매설심도를 DB화하고 지하매설물 정보 체계(UIS)에 활용하므로써 지하시설물에 대한 효과적인 유지관리, 재해방지에 기여하고자 한다.

• 한국측량학회지
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• 제25권5호
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• pp.427-436
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• 2007

각종 시설물들의 건설로 인해 형성된 사면은 붕괴의 위험성을 앉고 있기 때문에 사면의 현장에 대한 정보를 수집하기 위한 기존의 조사 방법들은 조사기간의 장기화, 계측장비에 대한 비용 및 접근성 등의 문제점이 제기되고 있으며, 이는 자료 수집의 한계점으로 제시되고 있다. 본 연구에서는 어느 위치에서든지 줌렌즈를 사용하여 영상을 취득할 수 있도록 하기 위하여 줌렌즈를 초점거리별로 검정하여 자유로이 줌을 사용할 수 있도록 하였다. 초점 거리별 검정 데이터 값은 DB(Date Base)화하여 여러 종류의 카메라나 또는 다른 렌즈를 사용하여 측정을 하더라도 자동으로 촬영한 초점거리의 카메라 검정데이터 값과 카메라정보를 불러오도록 Image Loader 시스템을 개발하였다. 또한, 취득한 대상물의 입체영상으로부터 3차원 공간영상정보를 구축함으로써 사면측량 및 조사에 효율적인 기초 자료로 제공하고자 하며, 사람이 접근할 수 없는 위험사면에 대한 정확한 측량방법을 제시하고자 한다.

• Archives of Plastic Surgery
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• 제42권1호
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• pp.46-51
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• 2015

Background In all branches of medicine, it is the surgeon's responsibility to provide the patient with accurate information before surgery. This is especially important in cosmetic surgery because the surgeon must focus on the aesthetic results desired by the patient. Methods An experimental protocol was developed based on an original questionnaire given to 72 patients. The nature of the responses, the patients' motivation and expectations, the degree of patient awareness regarding the planned operation, and the patients' perceptions of the purpose of the required consent for cosmetic surgery were all analyzed using Fisher's exact test. Results Candidates for abdominal wall surgery had significantly more preoperative psychological problems than their counterparts did (P=0.035). A significantly different percentage of patients under 40 years of age compared to those over 40 years of age searched for additional sources of information prior to the operation (P=0.046). Only 30% of patients with a lower educational background stated that the preoperative information had been adequate, whereas 92% of subjects with secondary schooling or a postsecondary degree felt that the information was sufficient (P=0.001). A statistically significant difference was also present between patients according to their educational background regarding expected improvements in their quality of life postoperatively (P=0.008). Conclusions This study suggests that patients require more attention in presurgical consultations and that clear communication should be prioritized to ensure that the surgeon understands the patient's expectations.

• Archives of Plastic Surgery
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• 제39권1호
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• pp.18-24
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• 2012

Background : Infection caused by rapidly growing mycobacteria (RGM) is not uncommon, and the prevalence of RGM infection has been increasing. Clinical diagnosis is difficult because there are no characteristic clinical features. There is also no standard antibiotic regimen for treating RGM infection. A small series of patients with RGM infections was studied to examine their treatments and outcomes. Methods : A total of 5 patients who had developed postoperative infections from January 2009 to December 2010 were retrospectively reviewed. Patients were initially screened using a mycobacteria rapid screening test (polymerase chain reaction [PCR]-reverse blot hybridization assay). To confirm mycobacterial infection, specimens were cultured for nontuberculous mycobacteria and analyzed by 16 S ribosomal RNA and rpoB gene PCR. Results : The patients were treated with intravenous antibiotics during hospitalization, and oral antibiotics were administered after discharge. The mean duration of follow-up was 9 months, and all patients were completely cured of infection with a regimen of a combination of antibiotics plus surgical treatment. Although none of the patients developed recurrence, there were complications at the site of infection, including hypertrophic scarring, pigmentation, and disfigurement. Conclusions : Combination antibiotic therapy plus drainage of surgical abscesses appeared to be effective for the RGM infections seen in our patients. Although neither the exact dosage nor a standardized regimen has been firmly established, we propose that our treatment can provide an option for the management of rapidly growing mycobacterial infection.

• 한국항공우주학회지
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• 제43권10호
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• pp.888-895
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• 2015

본 논문에서는 한국형 기동헬기의 안전영역 검증을 위해 블레이드 플래핑 각을 산출할 수 있는 근사식을 제시하였다. 블레이드의 플래핑 운동은 항공기 동체와의 충돌을 일으킬 수 있기 때문에 안전성 측면에서 검증되어야 하지만 비행 중의 플래핑 각을 정확하게 예측하거나 측정하는 것은 어려움이 있다. 이에 따라 공력이론을 활용한 코닝 각 예측 식과 개발해석결과를 활용한 동적 플래핑 각 예측 식을 도출하였다. 이 후 항공기 모사시험을 실시하여 식을 이용한 플래핑 각과 실측된 플래핑 각을 비교하여 산출식의 적절성을 확인하였다. 최종적으로 산출된 식을 이용하여 AC29 및 FAR29를 바탕으로 안전성 측면에서 검증이 요구되는 기동의 플래핑 각을 산출하여 개발에서 설정된 항공기 안전영역의 적절성을 확인하였다.

• 지질공학
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• 제8권1호
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• pp.25-34
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• 1998

흙은 실제 비균질,비등방성이기 때문에 정확한 지반 특성을 파악하기는 쉽지 않다. 또한, 지반조사는 시간적, 경제적 측면에서 비효율적인 경우가 많다. 따라서, 본 연구는 지반조사의 효율적인 방법을 제시하기 위해 콘 관입치와 탄성속도에 대한 연약지반의 특성 파악에 적합한 장비로서 본 연구에서는 휴대용 원추형 콘관입시험기를 사용하였다. 휴대용 원추형 콘관입시험기는 조작이 편리하고 신속하게 지반상태를 파악할 수 있는 장점이 있다. 또한, 탄성탐사는 물리 탐사방법중 개략적 지반상태의 추정에 가장 많이 이용되는 방법으로 연약지반에 대한 이용이 계속 증가하고 있다. 콘저항치는 심도별 지층구성에 따라 일정한 군을 형성하였고 탄성파속도 또한 지층경계에 따라 일치하는 경향이 나타났다. 따라서, 타성파 속도와 콘관입저항치는 상당한 연관성을 가지고 있으며 이는 지반조사의 효율성을 증대 시킬 수 있을 것이다.

• 패션비즈니스
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• 제5권4호
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• pp.89-100
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• 2001

The major purpose of this study is to show exact and convenient devices and minimize error in body measurement. This study was referred to 13 records and compared 6 items that the investigator's opinion has been differed about anthropometric point and line and suggested convenient and radical device, and measured by if need be. The 30 students from 20 to 25 ages were measured and data was analyzed by mean, std. deviation and paired t-test. The results are as follows. 1. Side neck point has been suggested many devices, but was suggested in this study to decide by M. trapezius, cervicale point and fossa jugularis point. 2. Shoulder point was suggested to decide by point of 1/2 armhole depth, upper arm depth and shoulder depth except acromion point. 3. Waist circumference line has been differed between horizontal line and natural line. The result of measurements was no significant difference between two methods and natural line was convenience. Waist circumference line must considered two methods together for garment construction and somato type. 4. The standard of hip circumference line has been differed between buttock point and trochanterion point. The result of measurements was significant difference between two methods, but two point must considered together because of body type. 5. Chest circumference line at scye has been differed between horizontal line and natural line. The result of measurements was significant difference between two methods and natural line was convenience. Chest circumference line at scye must studied to decide method the line for garment construction.

• 한국의류학회지
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• 제43권6호
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• pp.910-929
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• 2019

This study identifies the effects of the characteristics of an online shopping cart based on the theory of psychological ownership. This study created experimental stimuli similar to the actual fashion website in order to derive the exact emotional and behavioral responses of participants. To test the hypotheses, four experimental groups of 2 (personalization: high / low) × 2 (accessibility: high / low) were formed with between-subject design. We selected 201 women in 20-30s as participants and they responded to an online survey after experiencing website stimuli. The collected data were analyzed using SPSS 25.0 and SPSS PROCESS Macro program. The results show that the effects of personalization of an online shopping cart on the purchase intention of the fashion product in the cart is significant; in addition, the main effect of personalization of cart on consumer's psychological ownership was confirmed. It was also found that the path of personalization of the online shopping cart to purchase intention through psychological ownership was significant. The findings of this study contributes to the extension of online shopping cart research and provide suggestions to recognize the important role of psychological ownership in increasing the purchase conversion rate.