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창면 불쾌글레어 평가실험의 조건설정 및 타당성 검토를 위한 기초실험
김선화,김병수,이진숙 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1
The purpose of the study is to found the base experimental data by testing the adaptable time of eyes with administrating experimental conditions including source luminance, background illuminance and the position of subjects, by examining the appropriation of evaluating discomfort glare caused by actual window and simulated window. The process of the study is as follows: 1) In terms of the previous experiment, the large of Mock-up, evaluation values and subjective positions were administrated. 2) The experiment on the adaptable time of eyes is conducted with source luminance, background illuminance and the subjective position. 3) At the same Mock-up condition, the experiments for evaluating discomfort glare caused by actual window and by simulated window were conducted and contrasted. The adaptable time of eyes is rationally tested as 120 seconds with source luminance, background illuminance and the subjective position. And the difference on the boundary of evaluating values caused by actual window and simulated window ranges from 13% to 5%. On the basis of the result, the applicability of evaluating discomfort glare caused by simulated window is presented
창면불쾌글레어 평가를 위한 인공창 실험의 타당성 검토 연구
이진숙,김병수,김선화 대한건축학회 2003 대한건축학회논문집 Vol.19 No.12
The purpose of this study is to find the base experimental data by testing the recovery time of human eye with administrating experimental conditions, source luminance, background illuminance and the position of subjects, by examining the appropriateness of evaluating discomfort glare caused by actual window and by simulated window. The process of this study is as follows: 1) In terms of the previous experiment, the large of Mock-up, evaluation values and subjective positions were administrated. 2) The experiment on the recovery time of human eye is conducted by source luminance, background illuminance and the subjective position. 3) At the same Mock-up condition, the experiments for evaluating discomfort glare caused by actual window and by simulated window were conducted and contrasted. Rationally tested recovery time of human eye is 120 seconds with source luminance, background illuminance and the subjective position. And the difference on the boundary of evaluating values caused by actual window and by simulated window ranges from 13% to 5%. On the basis of the result, the validity of discomfort glare evaluation caused by simulated window is presented.
Modeling and Simulation of the Magnetic Method for High Voltage Direct Current Inspection Robot
Xian-jin Xu,Cheng-hui Liu,Yu Yan,Hao-da Chen,Lei Fang,Yun-long Wang,Long-hui Wu 한국자기학회 2018 Journal of Magnetics Vol.23 No.3
In order to solve the slipping problem of a two-arm-wheel combined inspection robot, a maglev system based on the magnetic field of a high voltage direct current (HVDC) is proposed. The magnetic system comprises of two parts: a magnetic levitation system and a magnetic drive system. The levitation component overcomes the gravity of the robot by the Ampere force generated by current-carrying coils in the magnetic field of HVDC. The drive component utilizes the Ampere force generated by current-carrying coils in the magnetic field of HVDC as the driving force. Simulation results of the model are compared with the calculated values. The results show that the magnetic levitation method and the magnetic drive method are theoretically feasible, and the model is accurate and effective, which is of great practical significance to the physical realization of the inspection robot.
( Jin Xian Ying ),최연철 ( Choi Youn Chul ) 한국유아교육학회 2023 유아교육연구 Vol.43 No.3
본 연구는 한 연구자가 유아 놀이에서 경험한 ‘다름’의 양상을 탐구하는 데 목적이 있다. 이를 위해 S 시에 소재한 D 유치원에서 만 5세 J 반 유아 19명과 연구를 진행하였다. 본 연구는 2021년 4월 8일부터 9월 28일까지 진행되었으며 놀이 전 과정에서의 연구자의 경험에 초점을 두고 참여 관찰을 실시하였다. 연구 기간 동안 다양한 자료를 수집하여 질적 접근의 방법으로 분석하였다. 분석 결과는 ‘서로 다른 놀이 생각’, ‘서로 다른 놀이 방법’ 그리고 ‘서로 다른 놀이 맥락’으로 나타났다. 본 연구는 한 연구자의 경험을 통해 ‘다름’이 갖는 교육적 가치를 시사하는 데 의의가 있다. The purpose of this study is to explore a researcher’s experience of various forms of ‘difference’ in children’s play. The children invited in this study consisted of 19 5-year-old children (10 males and 9 females) at D kindergarten in S city. For 5 months from April 08 to September 28, 2021, a total of 31 sessions of play were conducted during free play time. The participant observations were performed during play sessions. During the study, various data, including voice, videos, photographs, interview, and researcher's journals, were collected and analyzed. The results of this study are as follows. First, ‘difference’ appeared as forms of ‘different play ideas’. Second, ‘difference’ appeared as ‘different ways of playing’. Third, ‘difference’ appeared as ‘different play contexts’. The significance of this study is that the educational meanings of ‘difference’ were explored through the experience of a researcher.
( Xian Li ),( Ju Hye Yang ),( Ye Jin ),( Fansi Jin ),( Dong Young Kim ),( Jae Hoon Chang ),( Jung Ae Kim ),( Jong Keun Son ),( Tae Chul Moon ),( Kun Ho Son ),( Hyeun Wook Chang ) 영남대학교 약품개발연구소 2015 영남대학교 약품개발연구소 연구업적집 Vol.25 No.-
Ethnopharmacological relevance: 15,16-Dihydrotanshinone I (DHT-I), isolated from the dried root of Salvia miltiorrhiza Bung, which is traditionally used to treat cardiovascular and inflammatory diseases agent in Chinese medicine. DHT-I has been reported to have a broad range of biological activities, including antibacterial activity, and has been used to treat circulatory disorders, hepatitis, inflammation, cancer, and neurodegenerative diseases. Aim of the study: The aim of this study was to evaluate the anti-allergic inflammatory effects of DHT-I on degranulation and on the generation of eicosanoids, such as, prostaglandin D2 (PGD2) and leukotriene C4 (LTC4), in IgE/Ag-stimulated bone marrow-derived mast cells (BMMCs). Materials and methods: The anti-allergic inflammatory activity of DHT-I was evaluated using BMMCs. The effects of DHT-I on mast cell activation were investigated by following degranulation and eicosanoid generation using ELISA and immunoblotting and immunoprecipitation techniques. Results: DHT-I at a concentration of 20 μM markedly inhibited degranulation and the generation of PGD2 and LTC4 in IgE/Ag-stimulated BMMCs (about 90% inhibitions, respectively). Analyses of FcεRI-mediated signaling pathways demonstrated that DHT-I inhibited the phosphorylations of spleen tyrosine kinase (Syk) and linker for activation of T cells (LAT), and inhibited downstream signaling process, including [Ca2þ]i mobilization induced by the phosphorylation of phospholipase Cγ1 (PLCγ1), and the activations of mitogen-activated protein kinases (MAPKs) and the Akt-nuclear factor-κB (NF-κB) pathway. Conclusions: DHT-1 inhibits the release of allergic inflammatory mediators from IgE/Ag-stimulated mast cells by suppressing a FcεRI-mediated Syk-dependent signal pathway. This result suggests DHT-I offers a novel developmental basis for drugs targeting allergic inflammatory diseases. & 2015 Elsevier Ireland Ltd. All rights reserved.
Fine Needle Aspiration Cytologic Findings of Angiosarcoma - Report of Two Cases -
Jin Xian Ji,주영채,김루시아,최석진,박인서,한지영,김준미,김규호,송주영 대한병리학회 2011 Journal of Pathology and Translational Medicine Vol.45 No.2
Angiosarcoma is a rare malignant vascular neoplasm which can arise in any part of the body. Specific recognition of this neoplasm in cytological specimens is difficult in the absence of an ancillary method. Herein, we present the cytologic findings of two cases of angiosarcomas diagnosed on fine needle aspiration cytology. One case is a recurred angiosarcoma in the left chest wall and the other case is a lymphedema-associated angiosarcoma in the left lower leg. The cytologic findings of both cases are similar. Cytologic features that identified this neoplasm as an angiosarcoma included arborizing microtissue fragments, irregular anastomosing vascular spaces lined by atypical cells, microacini, intracytoplasmic lumen, and intracellular red blood cells, marked cell discohesiveness, spindle to ovoid, irregular, hyperchromatic nuclei, and elongated cytoplasmic processes with indistinct borders. This report emphasizes that when aspiration smears show vasoformative features in a bloody background, angiosarcoma should be included in the differential diagnosis.