저가 카메라를 이용한 스마트 장난감 게임을 위한 모형 자동차 인식

강민혜,홍원기,고재필 대한임베디드공학회 2024 대한임베디드공학회논문지 Vol.19 No.1

Recently, there has been a growing interest in integrating physical toys into video gaming within the game content business. This paper introduces a novel method that leverages low-cost camera as an alternative to using sensor attachments to meet this rising demand. We address the limitations associated with low-cost cameras and propose an optical design tailored to the specific environment of model car recognition. We overcome the inherent limitations of low-cost cameras by proposing an optical design specifically tailored for model car recognition. This approach primarily focuses on recognizing the underside of the car and addresses the challenges associated with this particular perspective. Our method employs a transfer learning model that is specifically trained for this task. We have achieved a 100% recognition rate, highlighting the importance of collecting data under various camera exposures. This paper serves as a valuable case study for incorporating low-cost cameras into vision systems.

생육기별 중금속 오염에 대한 코스모스와 해바라기의 생육반응과 측정량 변화 : the Potential for Phytoremediation

강민혜,이영현,이종화 순천향대학교 기초과학연구소 2002 순천향자연과학연구 논문집 Vol.8 No.2

This research used cosmos(Cosmos bipinnatus Cav.) and sunflower(Helianthus annuus L.) to test the potential of phytoremediation. A advantage of phytoremediation is that it is a green technology and when properly implemented is both environmentally friendly and aesthetically pleasing to the public. I examined the growth rate and physiological quality and confirmed heavy metal accumulation of Cd and Cu-affected plants. Chlorophyll content was higher in the Cu treatment than the content of control, and was increased as Cu concentration was increased. Its content with 20 and 100 μM Cd treatment was reduced. Soluble protein content was shown no difference in the heavy metal treatment of low concentration in compared with the control, but its content was reduced in Cu 2000μM and Cd 100μM. Total nitrogen content was the lowest in two plants treated with Cu 2000μM and shown the tendency of reduction when their growth period passed unlike the tendency of chlorophyll and soluble protein. In the experiment of heavy metal accumulation, it was shown that the inhibition of growth rate and physiological responses were a little when its heavy metal concentration were increased, but increased the tendency metal concentration of tow plants during growing period. And the heavy metal accumulation concentration of root was investigated higher than shoot parts in two plants. Heavy metal accumulation concentration was measured Cu 453.44㎍/g, Cd 675.14㎍/g in roots of cosmos and it is Cu 353.14㎍/g, Cd 140.76㎍/g in roots of sunflower. Consequently we may be consider landscape materials which cosmos and sunflower has the potential as phytoremediator.

생육기별 중금속 오염에 대한 코스모스와 해바라기의 생육반응과 축적량 변화

강민혜,이종화,이영현 인간식물환경학회 2004 인간식물환경학회지 Vol.7 No.3

This research used cosmos(Cosmos bipinnatus Cav.) and sunflower(Helianthus annuus L.) to test the potential of phytoremediation. A advantage of phytoremediation is that it is a green technology and when properly implemented is both environmentally friendly and aesthetically pleasing to the public. I examined the growth rate and physiological quality and confirmed heavy metal accumulation of Cd and Cu-affected plants. Chlorophyll content was higher in the Cu treatment than the content of control, and was increased as Cu concentration was increased. Its content with 20 and 100μM Cd treatment was reduced. Soluble protein content was shown no difference in the heavy metal treatment of low concentration in compared with the control, but its content was reduced in Cu 2000μM and Cd 100μM. Total nitrogen content was the most low in two plants treated with Cu 2000μM and shown the tendency of reduction when their growth period passed unlike the tendency of chlorophyll and soluble protein. In the experiment of heavy metal accumulation, it was shown that the inhibition of growth rate and physiological responses were a little when its heavy metal concentration were increased, but increased the tendency metal concentration of two plants during growing period. And the heavy metal accumulation concentration of root was investigated higher than shoot parts in two plants. Heavy metal accumulation concentration was measured Cu 453.44μg/g, Cd 675.14μg/g in roots of cosmos and it is Cu 353.14μg/g, Cd 140.76μg/g in roots of sunflower. Consequently we may be consider landscape materials which cosmos and sunflower has the potential as phytoremediator.

중금속이 코스모스와 해바라기의 초기 생육반응에 미치는 영향 : the Potential for Phytoremediation

강민혜,이영현,이종화 韓國植物ㆍ人間ㆍ環境學會 2003 인간식물환경학회지 Vol.6 No.2

This research used cosmos(Cosmos bipinnatus Cav.) and sunflower(Helianthus annuus L.) to test the possibility of phytoremediation, an environment-friendly heavy metal removing method. I examined the emergence, growth rate and physiological responses and confirmed heavy metal accumulation of Cd and Cu treatment and pH treatment-affected plants at early growing period. The emergence and growth rate was shown the most low in the Cu 2000uM. Chlorophyll and soluble protein content according to pH concentration were a little bad in their treatment plot compared with the control and were a little bad as pH concentration was low. But total nitrogen content was shown the highest in the Cu 2000μM than other treatments and was increased as pH was low. Heavy metal accumulation of roots in two plants was higher than the content of shoot part. Heavy metal accumulation concentration was measured Cu 369.79μg/g, Cd 114.99μg/g in roots of cosmos, and Cu 318.94μg/g, Cd 81.20μg/g in roots of sunflower.

Ancient Korean Costume Speculated on the Samguk-yusa(三國遺事)

강민혜,조우현 한국복식학회 2010 International journal of costume and fashion Vol.10 No.2

The Samguk-yusa (三國遺事) is one of the two classics of Korean ancient history together with the Samguk-sagi (三國史記): however there has not been any positive attempt to analyse clothing culture centering on the Samguk-yusa until now. Thereupon, this study aims to find the records related to fabrics, color and fashion appearing in the Samguk-yusa, and to analyse the fashion culture of the three kingdoms projected in the Samguk-yusa, referring to the Samguk-sagi and ancient Chinese reference books. According to the records in the book, the fabrics used for clothing of those days included Jikgeum-wimun(織錦爲紋), Geum(錦), Chaebaek(彩帛), Osaek-geumchae(五色錦彩), Geumbaek(金帛), Geumsam(錦衫), Ma(麻), Neung(綾), Geum-su-neung-ra(錦繡綾羅), Poh(布), Daecho(大綃), Bira-geumjeom(緋羅金點), Gyeon(絹), Japchae(雜綵), Rabiyeom(羅緋染), Chimilpho(緻密布), Gi(綺), and Whan(紈), and they had colors such as brown black(緇), black(黑), purple(紫), yellow(黃), blue(碧), clear white(素), white(白), five colors(五色). There is substantial amoung of report on Buddhism, and the terms used for Buddhist clothing included Beobeui(法衣), Nabeui(衲衣), Bangpoh(方袍), Gasa(袈裟) and Yueui(由衣). It is also ascertained that Gasa had a variety of Bira-geumjeom-gasa(緋羅金點袈裟), Manap-gasa(摩衲袈裟) and Geumra-gasa(金羅袈裟).

집단게임놀이치료를 통한 분노조절 프로그램이 아동의 분노표현 및 자아존중감에 미치는 효과

강민혜,이정숙 한국영유아아동정신건강학회 2019 영유아아동정신건강연구 Vol.12 No.1

The purpose of this study is to investigate the effects of group game play therapy program on children's anger expression and self-esteem. The subjects were 4th and 5th grade students in elementary schools in Hwasung, Korea and the program was conducted via 10 sessions twice a week for 5 weeks. 24 students were selected for the experimental group and 20 students were selected for the controlled group. Cognitive-Behavioral Approaches were utilized for the main activities of this program, such as I-message, switching irrational beliefs, and etc. To Verify the effects of the program, an anger expression scale and a self-esteem scale were performed. The results are as follows. Relevant differences were presented in The Anger expressions of the experimental group between pre-test and post-test. No significant increase was shown in the realm of self-esteem of the experimental group, except from self-esteem related to friends, however, the entire score of it was statistically increased. Conclusively, this research has significance that it has proven the effects of anger control program using the group game play therapy and organized a group program as a therapeutic mediation for the field of education. 이 연구는 집단게임놀이치료를 활용한 분노조절 프로그램을 실시하여 아동의 분노표현방식과 자아존중감에 미치는 효과를 검증하는데 목적이 있다. 연구대상은 경기도 H시에 소재한 A초등학교와 B초등학교에 재학 중인 초등학교 4·5학년 아동이며, 5주 간 주 2회 총 10회기 프로그램을 실시하였다. 실험집단 24명과 통제집단 20명을 선발하였으며, 프로그램의 주요활동으로는 I-message, 비합리적 사고 전환하기 등과 같은 인지행동적 기법들을 활용하였다. 프로그램의 효과를 검증하기위해 분노표현방식 검사와 자아존중감 검사를 실시하였다. 연구결과, 실험집단의 분노표현방식의영역에서 사전검사와 사후검사 결과 간 차이가 있는 것으로 나타났으며, 자아존중감 영역에서는실험집단의 친구관련 자아를 제외한 다른 하위요인에서는 차이가 없는 것으로 나타났으나 전체자아존중감 점수는 향상이 있는 것으로 나타났다. 따라서 이 연구는 집단게임놀이치료를 활용한분노조절 프로그램을 구성하여 그 효과를 검증하였으며, 교육현장에서 치료적 중재로서 활용 가능한 집단프로그램을 구성하였다는 데 의의가 있다고 할 수 있다.

생육기별 중금속 오오염에 대한 코스모스와 해라바기의 생육반응과 축척량 변화

강민혜,이영현,이종화 순천향대학교 기초과학연구소 2002 순천향자연과학연구 논문집 Vol.8 No.2

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코로나19와 마스크: 한국과 미국을 중심으로 본 마스크 착용에서의 동서양 문화차이

강민혜,정찬문,나진경 한국사회및성격심리학회 2021 한국심리학회지 사회 및 성격 Vol.35 No.4

COVID-19 continues to be a threat to humanity since its first reported case in Wuhan, China in November 2019. Among various countermeasures to combat COVID-19, face masks are known to be the most effective method. However, there was much confusion in the earlier stages of the pandemic, and especially in the West, protests against wearing masks were frequent unlike in the East. Based on this phenomenon, the current research investigated the cultural difference related to wearing face masks in the pandemic. Specifically, we hypothesized that in collective cultures that value ingroup harmony and good relationships with others, people would wear face masks more frequently and would be influenced by social factors more compared to individualistic cultures. We also hypothesized that in individualistic cultures that value independence and choice, people would wear masks less and would consider personal factors more importantly compared to collectivistic cultures. The results showed that the frequency and intention to wear masks were higher in Koreans compared to Americans. Also, Koreans considered social factors more importantly compard to Americans, and Americans weighed personal factors greater compared to Koreans. Furthermore, the frequency of actually wearing a mask and the intention to wear a non-functioning mask were mediated by the degree of the social factor’s importance. The results of this study suggest that promoting collectivism can help deter COVID-19 and that culturally appropriate measures are necessary for collective crises like COVID-19. 2019년 11월 중국 후베이성 우한시에서 첫 사례가 보고된 이후 신종 코로나 바이러스, COVID-19는 인류에 큰 위협이 되어 왔다. 코로나 확산을 막을 수 있는 다양한 방법 중에서도 마스크 착용이 가장 효과적인 방안으로 인식되고 있다. 하지만 초기에는 혼란이 많았고, 특히 서구권의 국가에서는 동아시아 국가들과는 달리 마스크 착용 반대 시위들이 잦았다. 이를 바탕으로 본 연구에서는 마스크 착용과 관련된 문화차이를 탐색하였다. 구체적으로 집단의 조화와 타인과의 관계를 중시하는 집단주의 문화에서는 마스크 착용 빈도가 높고 사회적 요인이 마스크 착용에 개인주의 문화에서보다 더 큰 영향을 주는 반면, 개인의 독립성과 선택이 중시하는 개인주의 문화에서는 마스크 착용 의도가 상대적으로 낮고 개인적 요인이 마스크 착용에 집단주의 문화에서보다 더 중요한 역할을 하는지 검증하였다. 연구 결과, 마스크 착용 빈도와 의도는 미국 참가자들과 비교해 한국 참가자들 사이에서 높게 나타났다. 또한, 마스크 착용에 있어서 사회적 요인은 미국보다 한국에서 더 크게, 개인적 요인은 한국보다 미국에서 더 중요하게 인식되는 것으로 확인되었다. 더욱이 비말 차단 기능이 없어서 코로나 예방 효과가 전혀 없는 마스크를 착용할 의향도 한국에서 상대적으로 더 높게 관찰되었는데, 이 결과도 마스크의 기능과 관련 없이 다른 사람에게 어떻게 보이는지가 한국 참가자들에게 중요하다는 것을 보여준다. 끝으로, 마스크 착용 의향과 코로나 예방 기능이 없는 마스크 착용에서 나타난 문화차이 모두는 사회적 요인을 중요하게 생각하는 정도에서 나타난 문화차이에 의해 매개되었다. 본 연구의 결과는 집단주의 문화 성향이 코로나19의 확산을 저지하는 데 도움이 될 수 있으며, 코로나19 같은 집단적 위기 상황에서는 문화적으로 적합한 대응이 필요하다는 것을 시사한다.

전통 누룩을 이용한 발효황기의 성분 변화

강민혜,이은숙,지윤정,김형돈,김금숙,최수지,장귀영 한국식품영양학회 2023 韓國食品營養學會誌 Vol.36 No.5

The major active components of Astragalus membranaceus (AM) are isoflavones, which exist in the form of various glycosides. Nuruk is a traditional fermentation starter in Korea, and is suitable for the biotransformation of isoflavone glycosides because it contains various microorganisms and enzymes. This study was performed to determine changes in the isoflavones and antioxidant properties of AM fermented (AF) with nuruk over 24 hours. AF was sampled after 0, 2, 4, 6, 12, 18, and 24 h of fermentation, and calycosin 7-glucoside, ononin, calycosin, and formononetin content, and the antioxidant properties of AF were analyzed. The total phenolic content increased with fermentation time, and the ABTS radical scavenging activity increased until 6 h of fermentation and then decreased. During fermentation, the isoflavone glycosides decreased significantly as fermentation time increased. The contents of calycosin and formononetin, which are aglycons of calycosin-7-glucoside and ononin, increased from 100.54 μg/g to 276.84 μg/g and from 56.29 μg/g to 123.04 μg/g, respectively, at 18 h of fermentation. Significant correlations were observed between fermentation time, isoflavone content, and antioxidant properties. The results of this study showed that fermentation with nuruk is suitable for the biotransformation of isoflavones in AM.

Effect of bifilm defects on Microstructure and Tensile properties of A356 secondary alloy for the recycling of machining chip scrap

강민혜,이은경 한국마린엔지니어링학회 2021 한국마린엔지니어링학회지 Vol.45 No.6

With the growing demand for aluminum alloys, interest in recycling aluminum is increasing due to economic and environ-mental reasons. In order to evaluate the recyclability of machining chip scrap, microstructural analysis and tensile tests of A356 cast alloys with different scrap fraction of 0, 20, 40, 60, 80, and 100% were conducted. The secondary dendrite arm spacing increased from 26.21 to 36.34 μm as the scrap content increased. The microstructure comprised an α-Al matrix, eutectic Si, α-Al8Fe2Si, β-Al5FeSi, and π-Al8Mg3FeSi6, which possess similar microstructures to those of commercial A356 cast alloys. The test results showed that the size and number of pores increased with the increasing scrap content. When the scrap content was higher than 40%, the pore area fraction increased significantly up to 5.97% for 100% scrap. It was shown that increasing the scrap content decreased the average tensile strength, yield strength, and elongation to 94.34 MPa, 72.10 MPa, and 5.22%, respectively. The porosities and tensile strengths of A356 alloy without scrap content were considered to have similar values to 20% scrap contents. Pores were found on the fracture surfaces under all the conditions.