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수요자 맞춤형 스마트설계 플랫폼 구축을 위한 비즈니스 모델 관점의 사용자 수요인식 조사 및 분석
이민규(Mingyu Lee),이성곤(Seongkon Lee),이욱현(Wookhyun Lee),구기관(Kikwan Koo),한경진(Kyungjin Han),유재경(Jaekyung Yoo),박성준(Sungjoon Park),이유경(Youkyoung Lee) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.11
Discovering users demands is essential for successfully developing a service or product. Users perception and demand play a critical role in developing the Smart Design Platform that is a platform service helping thermal energy-intensive industrial facilities to more efficiently and easily design their products. This study investigates a process and analysis of perception and demands from the two viewpoints: technology providers and consumers who are targeted users of the Smart Design Platform. A preliminary online survey gained a total of 630 potential users’ feedbacks. It will demonstrate sufficient demands for the Smart Design Platform. For an advanced analysis of users’ demands, additional interviews will be conducted with technology providers and consumers.
RNA interference of chitinase gene in Spodoptera litura
Mijin Jeon,Nayoung Jin,Sanna Oh,Youkyoung Lee,Mija Seo,Youngnam Youn,Yongman Yu 한국응용곤충학회 2013 한국응용곤충학회 학술대회논문집 Vol.2013 No.10
RNA interference(RNAi) is the method which controls phenotypes of gene in live cells. Chitinase is the enzyme helping digestion and absorption of old cuticles during the ecdysis of insects. In order to investigate molting-inhibition effect with the chitinase related gene in Spodoptera litura, RNA was extracted from the 5th instars. cDNA was synthesized and then we obtained about 645bp size chitinase. After PCR products were cloned into a pGEM T-easy vector, colonies were picked. DNA was extracted from the colony cultures. EcoR I enzyme was used to check whether PCR products were inserted or not. To synthesize the dsRNA, each DNA was cut with Spe I and Nco I enzymes. After synthesis, of dsRNA, approximately 5ul dsRNA was injected into the 3rd abdominal segment of S. litura 4th larvae. We confirmed insects that were phenotypically abnormal - for instance molting inhibition, change of integument color, malformation.
이정우 ( Lee Jeongwoo ),김혜영 ( Kim Hyeyoung ),김동선 ( Kim Dongsun ),한유경 ( Han Youkyoung ),홍창남 ( Hong Changnam ) 한국초등교육학회 2020 초등교육연구 Vol.33 No.1
This article empirically explored the academic achievement in Korean, English, Mathematics of elementary school students enrolled in Busan innovation school called Dahangbok Schools, using the first three waves(2016∼2018) of the Busan Educational Longitudinal Study. Specifically, descriptive statistics were used to present the academic achievement in terms of the achievement gap over time and the degree of improvement, and multi-level linear growth modeling to analyze the initial level of academic achievement and the rate of growth in academic achievement. Also, this article analyzed the academic achievement by parental education (secondary education or lower vs. 4-year college degree or higher) in the context of educational equity. The results indicate that the academic achievement of students enrolled in the Dahangbok Schools was, on average, lower than those of students enrolled in general schools in all the subjects each year. However, the Dahangbok Schools showed a higher degree of improvement in the academic performance. The analysis of multi-level linear growth modeling confirmed these findings. Academic achievement’s initial level appeared to be higher for general schools, but the rate of growth higher for the Dahangbok Schools. On the other hand, students with parents with secondary education or lower showed a lower initial level of academic achievement than those with 4-year college degree or higher in all the subjects regardless of type of school. However, students with parents with secondary education or lower enrolled in the Dahangbok Schools showed the highest growth rate in Korean and Mathematics.
Soon Bo Choi,Jiyoung Kim,Dongwon Kim,Jiyoon Park,Youkyoung Lee,Kyungri Park,Eun Sil Kim,So Min Lee,Sung-Won Kim 한국유방암학회 2022 Journal of Breast Disease Vol.10 No.2
Polyacrylamide hydrogel (PAAG), an injectable, jelly-like, medical hydrogel, has been popular in some countries as a non-surgical method of mammoplasty since approximately 2000. Particularly in China, many patients underwent mammoplasty using PAAG during a 16-year period until 2006, and studies on its course and complications were also conducted. However, evidence regarding the relationship between PAAG mammoplasty and malignancy is lacking, and only a few cases have reported the possibility of this association. Herein, we present a case in which malignancy was suspected because of complications 20 years after PAAG injection mammoplasty.