하수관거 모니터링 프로그램(SM5-PLUS) 소개

김유진,오정환,박해경,Kim, Yu-Jin,O, Jeong-Hwan,Park, Hae-Gyeong 한국수자원학회 2012 물과 미래(한국수자원학회지) Vol.45 No.10

모바일 UI 기술동향 및 시장 전망

김유진,Kim, Y.J. 한국전자통신연구원 2012 전자통신동향분석 Vol.27 No.4

최근 아이폰이 등장하면서 인터페이스는 새롭게 재조명받게 되었으며, 다양한 모바일 기기가 제공하는 컴퓨팅 능력을 제대로 활용하기 위해서는 반드시 사용자 인터페이스가 필요하며 중요하다. 과거 사용자 인터페이스라는 말은 컴퓨터에 제한적으로 사용되었지만, 다양한 디지털 기기 그 중에서도 스마트폰의 출시로 인해 그 의미가 점차 확장되고 있다. 또한, 최근 들어 기술 및 성능화의 차별화가 한계에 봉착하면서 인터페이스 중심으로 경쟁 패러다임이 점차 변화하고 있다. 따라서 본고에서는 UI(User Interface)의 새로운 혁신을 이끌고 있는 스마트폰을 중심으로, 모바일 UI의 진화 방향 및 제조사별 UI 적용 현황을 살펴보고 이를 토대로 모바일 UI 기술동향과 모바일 UI 시장을 전망하고자 한다.

가족성 IgA 신병증 1례

김유진,김운곤,윤신애,이진석,하태선,Kim, Yu-Jin,Kim, Wun-Kon,Yoon, Shin-Ae,Lee, Jin-Seok,Ha, Tae-Sun 대한소아신장학회 2011 Childhood kidney diseases Vol.15 No.1

IgA 신병증은 전 세계적으로 가장 흔한 원발성 사구체 질환으로 성인의 경우 30% 정도가 만성신부전으로 진행하며 소아의 경우 10% 정도가 만성신부전으로 진행한다. IgA 신병증은 전신증상이 없이 현미경적 혈뇨와 간헐적인 육안적 혈뇨를 특징으로 하며 심한 경우 단백뇨를 동반한다. IgA 신병증의 원인이나 발병기전은 정확히 알려져 있지 않으며. 국외에서는 IgA 신병증이 유전되는 가계에 대한 보고와 함께 관련 유전자 연구가 활발하지만 국내에서는 이에 대한 증례가 매우 드물다. 저자들은 국내에서 가족 내유전된 IgA 신병증에 대한 1례를 경험하였기에 문헌고찰과 함께 보고하는 바이다. IgA nephropathy is the most common form of primary glomerulonephritis and chronic glomerular disease worldwide including Korea. Familial gathering of IgA nephropathy suggests that genetic factors contribute to the development of this disease. Although there have been many reports on familial IgA nephropathy with genetic analysis and their pedigrees, there has been few reports in Korea. We reported a partial familial IgA nephropathy pedigree with a brief review of the literatures.

카메라-라이다 센서 융합을 통한 VRU 분류 및 추적 알고리즘 개발

김유진,이호준,이경수,Kim, Yujin,Lee, Hojun,Yi, Kyongsu 한국자동차안전학회 2021 자동차안전학회지 Vol.13 No.4

This paper presents an vulnerable road user (VRU) classification and tracking algorithm using vision and LiDAR sensor fusion method for urban autonomous driving. The classification and tracking for vulnerable road users such as pedestrian, bicycle, and motorcycle are essential for autonomous driving in complex urban environments. In this paper, a real-time object image detection algorithm called Yolo and object tracking algorithm from LiDAR point cloud are fused in the high level. The proposed algorithm consists of four parts. First, the object bounding boxes on the pixel coordinate, which is obtained from YOLO, are transformed into the local coordinate of subject vehicle using the homography matrix. Second, a LiDAR point cloud is clustered based on Euclidean distance and the clusters are associated using GNN. In addition, the states of clusters including position, heading angle, velocity and acceleration information are estimated using geometric model free approach (GMFA) in real-time. Finally, the each LiDAR track is matched with a vision track using angle information of transformed vision track and assigned a classification id. The proposed fusion algorithm is evaluated via real vehicle test in the urban environment.

Synthesis of a New Iron(Ⅱ) Adipate with layered Inorganic Framework

김유진,정둑영,Kim, Yu Jin,Jeong, Duk Yeong Korean Chemical Society 2000 Bulletin of the Korean Chemical Society Vol.21 No.6

도시지역 유역유출 해석 프로그램(SWMM-GE) 소개

김유진,오정환,박순영,Kim, Yu-Jin,O, Jeong-Hwan,Park, Sun-Yeong 한국수자원학회 2012 물과 미래(한국수자원학회지) Vol.45 No.9

Quantitative Analysis on Cellular Uptake of Clustered Ferrite Magnetic Nanoparticles

김유진,Bum Chul Park,Young Soo Choi,고민준,Young Keun Kim 대한금속·재료학회 2019 ELECTRONIC MATERIALS LETTERS Vol.15 No.4

Due to their ability to be internalized into cells by endocytosis through cell membranes, the application of nanoparticlesin therapeutic and diagnostic fields has received much interest. In particular, ferrite magnetic nanoparticles (MNPs) arewidely used as reagents for medical care, including in vitro magnetic separation, T2-weighted magnetic resonance imaging,magnetic hyperthermia therapy, and as drug delivery systems. However, little is known about the quantitative analysis ofthe cellular uptake of MNPs by the interaction of particle surfaces with biomolecules. Here, we quantitatively analyze theintracellular uptakes of 30 nm Fe- and Mn-ferrite MNPs. We confirm that the magnetic properties of MNPs change accordingto their microstructure and quantitatively analyze nanoparticle internalization in breast cell lines (MCF10A, MCF7, andMDA-MB-231) by measuring the magnetic moment using a vibrating sample magnetometer. Finally, we examine the effectof nanoparticle microstructure on cellular uptake in terms of the interaction between the nanoparticles and biomolecules.

대학 기숙사의 만족도 향상을 위한 시설관리(FM) 서비스 제안

김유진,신은영,김준하,Kim, Yu-Jin,Shin, Eun-Young,Kim, Jun-Ha 한국교육시설학회 2016 敎育施設 Vol.23 No.2

University dorm basically provides basic housing functions to students, however, it is very important in a sense that it provides students with various functions such as information exchange, cultural experience and learning environments as well. Additionally, continuous effort to improve users' satisfaction and living environments are needed due to the fact that physical environments of dorm facilities have higher impact on students. However, Many students are not satisfied with the physical environment of university dorms and also there is lack of systematic information whereas various functions are required by students. Therefore, the main objective of this research is to suggest the direction of FM services in order for improving students' satisfaction on the university dorm facilities in Korea. Precedent studies regarding the satisfaction or performance evaluation of dorm facilities have been extensively analyzed to extract the dissatisfaction factors that scored below the middle 50%. Secondly, for satisfaction improvement, Korean Standard for Facility Management(KS_FM) have been matched with those extracted dissatisfaction factors to suggest the direction of FM services by rules and regulations review and best practice studies. This research will be useful for university dorm facility managers in planning strategic FM and providing effective FM services to students.

하천관리를 위한 하천진단 및 시스템 개발

김유진,윤승호,박찬호,최원태,Kim, Yu-Jin,Yun, Seung-Ho,Park, Chan-Ho,Choe, Won-Tae 한국수자원학회 2016 물과 미래(한국수자원학회지) Vol.49 No.10

부처손 잎 추출물의 항산화, 항염 및 피부재생 효능

김유진,이지안,Kim, Yu-Jin,Lee, Ji-An 중소기업융합학회 2021 융합정보논문지 Vol.11 No.4

부처손 잎은 전통한방에서 탈항, 혈뇨, 부정출혈, 월경불순, 자궁출혈 및 만성간염을 치료 목적으로 사용되어 왔다. 본 연구에서는 부처손을 이용하여 얻은 열수추출물(STW)과 80%에탄올추출물(STE)의 항산화, 항염 및 세포 재생활성을 평가하였다. 그 결과 열수추출물과 에탄올추출물의 폴리페놀 화합물 함량은 각각 38.108±0.766 mg/g, 17.927±1.064 mg/g이었다. DPPH와 ABTS radical 소거능 IC50은 열수추출물이 에탄올추출물에 비해 2배 이상 낮았다. MTT 결과, RAW264.7 세포 생존율은 두 추출물 모두 1 mg/mL에서 6% 감소한 반면, HaCaT 세포의 생존율은 50 ㎍/mL에서 18%로 증가하였다. 열수추출물과 에탄올추출물은 LPS로 자극한 RAW264.7 세포의 NO, TNF-�� 그리고 COX-2, PGE2 등의 염증 매개물질의 생성을 억제하였다. 또한 TNF-a에 의한 각질형성 세포의 손상을 저해시켰다. 이상의 결과로 부처손 열수추출물과 에탄올추출물은 피부건강과 미용 식품을 위한 기능성 원료로 가능성이 높다고 사료된다. The leaves of Selaginella tamariscina were used for the treatment of many diseases in traditional medicine. In the study, antioxidant, anti-inflammatory, and wound healing activities of the hot-water extract(STW) and 80%ethanol extract(STE) obtained from S. tamariscina were evaluated. As a result, the polyphenol content of STW and STE were 38.108±0.766 mg/g and 17.927±1.064 mg/g, respectively. The DPPH and ABTS radical scavenging activities with the IC50 values of the STW were over 2 times lower than that of the STE. In the MTT assay, RAW264.7 cell viability of two extracts was decreased by about 6% at 1 mg/mL, whereas for HaCaT cell viability increased by 18% at 50 ㎍/mL. In addition, STW and STE suppressed the production of nitric oxide(NO), Tumor-necrosis(TNF)-��. COX-2 and PGE2 in lipopolysaccharide(LPS) induced RAW264.7 cells. Furthermore, the STE showed wound healing effect through the promotion of skin cell migration in TNF-�� stimulated human keratinocytes. These results indicated that the STW and STE have the potential to be used as a new cosmetic active ingredients in skin care.