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이희경 한국영유아교원교육학회 2020 유아교육학논집 Vol.24 No.5
The purpose of this study was to analyze and compare the kindergarten curricula in Uzbekistan and Korea. For this, the curriculum composition system, the goals and objectives, educational contents, teaching and learning methods, and evaluation of the 2018 Ilkadam in Uzbekistan and the 2019 revised Nuri curriculum in Korea were all analysed and compared. Each country’s system has a different composition of curriculum. The Ilkadam is a competency-centered curriculum, whereas the Nuri curriculum is a child-centered, play-centered curriculum. The goal and objectives of these two curricula reflect the national educational needs, and the contents are composed of five parts, showing similar characteristics The similarities and differences were shown in teaching methods and evaluation. The results of this study can be used as basic data for international comparative studies of kindergarten curricula and for getting cooperation plans for early childhood education between Uzbekistan and Korea. 본 연구의 목적은 우즈베키스탄과 한국의 유치원교육과정을 비교하여 분석하는 것이다. 이를 위해 우즈베키스탄의 유치원교육과정 2018년 개발 일카담(Ilk kadam)과 한국의 2019년 개정 누리과정의 교육과정 구성 체계, 목적과 목표, 교육내용, 교수ㆍ학습 방법 및 평가를 비교하였다. 일카담은 역량중심의 교육과정이며, 누리과정은 유아중심, 놀이중심의 교육과정으로서로 다른 구성체계를 가지고 있다. 목적과 목표는 각 국가의 교육 요구가 반영되어 진술되어 있고, 교육과정의 내용은 모두 5개 영역으로 구성되어 있으며 내용적으로 유사한 특성을보였다. 교수ㆍ학습 방법 및 평가의 내용은 각각 공통점과 차이점을 보였다. 본 연구결과는유치원교육과정의 국제 비교 연구와 우즈베키스탄과 한국의 유아교육 협력 방안을 모색하기위한 기초자료로 사용될 수 있다.
이희경,김재연,김태진,강수정,이재영,원성호,김남기,김철경,고창웅 한국EHS평가학회 2003 한국EHS평가학회지 Vol.1 No.1
실제 화장품은 일상생활에서 매일 또는 장기간 걸쳐 사용되기 때문에 모든 조건을 고려하여 사용상 안전해야 하며 부작용을 유발시켜서는 안된다. 제품에 대한 안전성ㆍ유효성ㆍ품질확보가 필요한 제품이며 화장품의 부작용을 일으키는 요인과 물질을 조사하고 화장품을 최대한 적합하게 사용하는 방법과 여러 가지 피부문제를 방지하는데 필요한 기본 자료를 얻는데 목적이 있다. 시판 전(pre market) 관리보다 시판 후(in market) 관리에 중점을 둔 제도ㆍ규정을 마련함으로써 화장품 부작용을 줄일 수 있고 관리 할 수 있을 것으로 생각한다.
Computerized Sperm Motility Analyzer를 이용한 Human Sperm의 Hyperactivated Motility의 객관적 관찰에 관한 연구
이희경,이찬,김현숙,김영태,김선행,구병삼,Lee, Hee-Kyung,Lee, Chan,Kim, Hyun-Sook,Kim, Young-Tae,Kim, Sun-Haeng,Ku, Pyoung-Sahm 대한생식의학회 1994 Clinical and Experimental Reproductive Medicine Vol.21 No.1
The occurrence and time course of capacitation, acrosomal loss, and hyperactivated motility require quantitative definition in order to characterize fertile human sperm. Recently the method has been developed to estimate the quality of spermatozoa by using kinematic parameters such as curvilinear velocity(VCL), average path velocity(VAP), linearity(LIN), straightness(STR), amplitude of lateral head displacement(ALH), and beat cross frequence(BCF) from Computer Assisted Sperm Analysis (CASA). In this study, using the Hamilton Thorn motility analyzer HTM 2030(Hamilton Thorn Research, Beverly, MA), we attempted to identify the spermatozoa with hyperactivated motility (HA) objectively and to monitor hyperactivation of human spermatozoa during incubation in capacitating media and after treatment of calcium ionophore as compared with acrosome status. And we examined whether HA are related to the result of SPA. Semen samples obtained from 16 healthy men were prepared by swim up technique and preincubated in a capacitating media(modified BWW medium) for 5 hours and treated with calcium ionophore solution. The acrosome reaction was detected with PSA-FITC labelling of the acrosome and in vitro sperm ferilizing capacity was assessed by the zona free hamster ovum penetration assay (SPA). The incidence of hyperactivated sperm was 2.6% in fresh semen, 14.3% of the swim up population, 13.7% after 5h of incubation. Significant increase of percentage of hyperactivated sperm was observed after the incubation (p<0.05) but after treatment, no significant changes of percentage of hyperactivated sperm(l1.8%) in contrast to significant rise in the percentage of acrosome reacted cells. Correlation analysis failed to show any significant relationship between the percentage of sperm with HA and SPA score. In conclusion, although no direct correlations were found between the results of SPA and HA, hyperactivation of sperm is associated with capacitation and monitoring hyperactivated sperm will be expected as a method of evaluating the functional quality of sperm such as SPA.
Real‐time multi‐GPU‐based 8KVR stitching and streaming on 5G MEC/Cloud environments
이희경,엄기문,임성용,서정일,곽문성 한국전자통신연구원 2022 ETRI Journal Vol.44 No.1
In this study, we propose a multi-GPU-based 8KVR stitching system that operates in real time on both local and cloud machine environments. The proposed system first obtains multiple 4 K video inputs, decodes them, and generates a stitched 8KVR video stream in real time. The generated 8KVR video stream can be downloaded and rendered omnidirectionally in player apps on smartphones, tablets, and head-mounted displays. To speed up processing, we adopt group-of-pictures-based distributed decoding/encoding and buffering with the NV12 format, along with multi-GPU-based parallel processing. Furthermore, we develop several algorithms such as equirectangular projection-based color correction, real-time CG overlay, and object motion-based seam estimation and correction, to improve the stitching quality. From experiments in both local and cloud machine environments, we confirm the feasibility of the proposed 8KVR stitching system with stitching speed of up to 83.7 fps for six-channel and 62.7 fps for eight-channel inputs. In addition, in an 8KVR live streaming test on the 5G MEC/cloud, the proposed system achieves stable performances with 8 K@30 fps in both indoor and outdoor environments, even during motion.