컨볼루션 신경망의 앙상블 모델을 활용한 마스트 영상 기반 잠수함 탐지율 향상에 관한 연구

정미애,마정목,Jeong, Miae,Ma, Jungmok 한국군사과학기술학회 2020 한국군사과학기술학회지 Vol.23 No.2

Due to the increasing threats of submarines from North Korea and other countries, ROK Navy should improve the detection capability of submarines. There are two ways to detect submarines : acoustic detection and non-acoustic detection. Since the acoustic-detection way has limitations in spite of its usefulness, it should have the complementary way. The non-acoustic detection is the way to detect submarines which are operating mast sets such as periscopes and snorkels by non-acoustic sensors. So, this paper proposes a new submarine non-acoustic detection model using an ensemble of Convolutional Neural Network models in order to automate the non-acoustic detection. The proposed model is trained to classify targets as 4 classes which are submarines, flag buoys, lighted buoys, small boats. Based on the numerical study with 10,287 images, we confirm the proposed model can achieve 91.5 % test accuracy for the non-acoustic detection of submarines.

어머니, 아버지가 인식하는 공동양육 및 행복감이 유아의 사회적 유능성에 미치는 영향

정미애 ( Jeong Miae ) 한국유아교육학회 2022 유아교육연구 Vol.42 No.6

The purpose of this study is to examine the effect of co-parenting and happiness perceived by mothers and fathers on social competence of infants. For this purpose, 865 pairs of mothers and fathers, and their infants were selected using raw data from the 7th year of the Korean Children’s Panel (2014). As for the research method, frequency analysis, reliability analysis, and Pearson’s moment correlation coefficient were obtained using the SPSS 22 program, and multiple regression analysis was performed. As a result, First, it was found that there was a correlation between mothers and fathers' joint parenting consciousness, happiness, and social ability of infants and young children. Second, it was found that the mother's co-parenting had a significant effect on self-control and cooperation, which are sub-factors of the infant's social competence, and the father's co-parenting had a significant effect on self-control, cooperation, and responsibility. Also, it was found that mother's and father's feelings of happiness had a significant effect on self-control and cooperation, which are sub-factors of children's social competence. Therefore, this study is meaningful in revealing the need for cooperative and supportive co-parenting of mothers and fathers, and positive emotions of parents that affect children's social competence.

저작기능장애자의 구강근기능훈련이 구강위생에 미치는 효과

정미애(Mi-Ae Jeong) 한국콘텐츠학회 2019 한국콘텐츠학회 종합학술대회 논문집 Vol.2019 No.5

산림치유 효과 측정 지표로써 과산화지질의 활용가능성 분석

정미애 ( Mi Ae Jeong ),박수진 ( Su Jin Park ),이정희 ( Jeong Hee Lee ),박찬우 ( Chan Woo Park ),권진오 ( Jin O Kwon ) 한국산림과학회 2013 한국산림과학회지 Vol.102 No.4

This study aimed to analyze and compare results from psychological relaxations by using profile of mood state (POMS) and Malondialdehyde (MDA) level as a scale of oxidative damage before and after walking in the forest and on the street. 29 participations (15 men and 14 women) walked in the forest and on the street for 30 minutes of each for two days. The participations filled a questionnaire for POMS and conducted an heart rate variability test, oxidative damage test (MDA as biological marker through a urine test) before and after walking. To compare the psychological states after walking in the two difference places, walking in the forest showed statistically more meaningful results in the section of tension, depression, anger, fatigue, confuse and total mood disturbance (p<0.01) than walking on the street. According to the MDA results, a concentration of MDA showed significant increase after walking on the street (p=0.014). On the contrary to this, a concentration of MDA tended to decrease after walking in the forest (p=0.076). The study showed that the psychological states were more stable and oxidative damages were more decreasing after walking in the forest than walking on the street. In the conclusion, MDA would be biological indicator for assessing the effect of alleviation on the oxidative stress after walking in the forest.

재가노인과 시설노인의 구강건강실태 비교연구 -삼척시에 거주하는 일부노인을 대상으로-

정미애 ( Mi Ae Jeong ),정상희 ( Sang Hee Jung ),최정이 ( Jeong Lee Choi ) 한국치위생학회 2005 한국치위생학회지 Vol.5 No.2

세륨옥사이드나노입자(Cerium Oxide Nano Particles; CNPs)를 첨가한 치면열구전색재의 물리적 특성 및 세포독성

정미애(Mi-Ae Jeong),김동애(Dong-Ae Kim) 한국콘텐츠학회 2022 한국콘텐츠학회논문지 Vol.22 No.3

본 연구는 기존의 치면열구전색재 ConciseTM에 세륨옥사이드 나노입자(Cerium oxide nano particles; CNPs)를 0-4.0 wt%를 첨가하여 새로운 치면열구전색재를 제조하여 물리적 성질과 세포독성을 평가하였다. 물리적 성질은 중합깊이, 물흡수도와 용해도를 측정하였고 세포독성평가는 불멸화된 구강점막세포(Immortalized human oral keratinocyte (IHOK))를 이용하여 MTT assay법으로 평가하였다. 실험 결과 중합 깊이는 CNPs 첨가량이 증가할수록 감소하였고, 용해도는 CNPs를 2.0 wt% 첨가된 실험군에서 가장 낮은 값을 보였으며 물흡수도는 각 실험군별 유의한 차이는 나타나지 않았다(p >0.05). 세포독성 실험 결과는 모든 실험군에서 높은 세포 생존율을 보였다. 이는 CNPs가 물리적 성질을 크게 약화 시키지 않으며 세포독성을 나타내지 않았으므로 생체적합성을 입증하였다. CNPs의 특성을 고려하여 향후 CNPs의 효율적인 분산 기술에 대한 추가 연구가 필요할 것으로 사료된다. In this study cerium nano particles(CNPs) with 0-4.0 wt% was incorporated to the conventional dental pit and fissure sealant(ConciseTM) to produce new pit and fissure sealant the physical properties and cytotoxicity. The physical properties were measured for polymerizing depth the degree of water absorption and solubility. The cytotoxicity of cell viability was analyzed by MTT assay using immortalized human oral keratinocyte(IHOK). As a result of this preceding study the polymerizing depth was decreased by the increasing of the amount of CNPs. The solubility degree of the sealant added CNPs with 2.0 wt% showed was the lower and the water absorption showed no significantly difference with the control groups(p >0.05). The cytotoxicity test results showed high survival rates in all experimental groups. Therefore, pit and fissure sealant by the addition of CNPs excellent cell viability be produced without weaken the physical property of the cell viability fissure sealant containing CNPs does not weaken physical properties and has no cytotoxic effects biocompatibility. Considering its properties effect of CNPs, further studies are required for distribution technology application.

디지털전환기 기업혁신활동 변화와 대응전략

정미애(Mi-Ae Jung),김선우(Sunwoo Kim),김승현(SeungHyun Kim),성지은(Jieun Seong),송위진(Wichin Song),이광호(Kwangho Lee),이윤준(Yoon-Jun Lee),임채윤(Chae-yun Yim),박정호(Jeongho Park),정효정(Hyo-jeong Jeong),홍정임(Jung-Im Hong) 과학기술정책연구원 2021 정책연구 Vol.- No.-

This study analyzes the changes in companies in response to the business innovation environment in the digital transformation era and explores policy tasks that can effectively support them. In an era when quantitative growth is no longer possible, the study takes a deep dive into how businesses respond and change to be sustainable based on a theoretical framework, and proposes new policy directions. The study analyzes the digital transformation of small and medium-sized enterprises (SMEs) and examines the activities of companies in the digital transformation era, including general companies that pursue economic value as well as those that pursue social value, in terms of corporate value orientation. This study consists of five chapters. Chapter 2 looks at environmental changes, business responses, and related policies that can affect the activities and sustainability of companies in the digital transformation era, and reviews theories explaining business responses to environmental changes, especially dynamic capabilities. Chapter 3 introduces the cases of business digital transformation with the focus of research on the digital transformation of general companies that pursue economic value and derives policy demands with a survey on the status of companies responding to the digital transformation era. Chapter 4 introduces the activities of social value-oriented businesses that leverage digital technology to improve social sustainability and derives policy demands for increasing the social value of digital transformation and related business activities. Chapters 3 and 4 both take an in-depth look into how companies perceive the environment, seize opportunities, and implement internal and external activities from the perspective of dynamic capabilities. Considering that social value-driven companies focus on changing the social system as an agent of sustainable social transformation, this study analyzes the process and activities that transform the environment and social system surrounding a company and what role digital transformation plays. It examines what difficulties and policy demands exist in the overall process of such changes, and analyzes the characteristics of the companies that undergo changes. Finally, Chapter 5 summarizes the results of the study and suggests policy directions to improve the economic and social values of digital transformation. The results of a survey on innovative SMEs showed that Korean SMEs, especially manufacturing companies, have low interest in digital transformation, their implementation level is also not mature and digital transformation has not yet yielded economic outcomes. It also found that the type and purpose of digital transformation and the industrial sector can affect the stage of digital transformation, and that dynamic capabilities have a significant impact on the implementation and advancement of digital transformation. In the case of social value-driven companies, they recognize addressing social problems as their main corporate mission and combine social value and economic value in their businesses. Here, digital transformation and digital technology appear to play an important role in gaining competitive advantages. In conclusion, this study proposes the following policy tasks. First, to improve the economic performance of digital transformation, the study suggests policy development from the demand perspective considering the stage of digital transformation, devising measures to induce digital transformation in the manufacturing sector, and improvement of SME innovation policies in the digital transformation era. To maximize the social benefits of digital transformation, it also proposes to expand the digital social innovation R&D program, strengthen the social value orientation of new industries, and promote the innovation ecosystem of social value-driven companies. Lastly, the study emphasizes the need to change the direction of the digital transformati

상악동 거상술에서 치조골 이식재로서의 이종골과 합성골의 효과 비교

정미애(Jeong mi-ae) 한국콘텐츠학회 2023 한국콘텐츠학회 종합학술대회 논문집 Vol.2023 No.5

텍스트마이닝을 통한 공동체 정원 관리 주민의 인식과 관리방향 분석

정미애(Miae Jeong),박지원(Jiwon Park),임연진(Yeon Jin Lim) 인간식물환경학회 2022 인간식물환경학회 학술대회 Vol.2022 No.추계

세균학적 우식 활성 검사 구형(Dentocult-SM® , Dentocult-LB®)과 신형 (CRT® bacteria)의 비교

정미애(Mi-Ae Jeong),안소연(So-Youn An) 한국산학기술학회 2015 한국산학기술학회 학술대회 Vol.2015 No.1

치아우식증의 주요 세균으로 알려진 뮤탄스 연쇄상구균(Streptococcus mutans)은 글루칸이라는 세포외 다당류를 형성함으로써 세균의 치면 부착과 치태형성에 관여하며, 탄수화물을 발효시켜 생성한 유산에 의해 치아를 탈회시킨다. 또한 유산간균(Lactobacillus)은 진행된 치아우식와동에서 많이 발견되며 우식활성과 연관이 있는 균으로 알려져 있다. 따라서 뮤탄스 연쇄상구균과 유산간균은 치아우식활성도를 평가하는 지표로 널리 연구되고 있다. 정합하여 Diplexer로 구현함으로써 신호의 분리와 합성의 가능성을 입증하기 위해 실제 마이크로스트립구조의 Diplexer를 제작, 측정한 결과 ...........