토픽모델링과 사회네트워크분석을 활용한 사회적기업의 미션 연구

이새미,변장섭,최지혜,브라운 앨런,Lee, Sae-Mi,Byeon, Jang-Seop,Choi, Ji-Hye,Brown, Alan Dixon 한국디지털정책학회 2022 디지털융복합연구 Vol.20 No.4

본 연구의 목적은 사회적기업의 미션 분석을 통해 사회적기업이 추구하는 사회적 목적을 탐색하여 사회적 문제에 대한 사회적기업의 인식을 파악하고, 이를 바탕으로 한국 사회적경제의 시대적 사명에 대해 재고하는 것이다. 이를 위해 사회적기업 자율공시자료를 수집하여 LDA 토픽모델링과 사회네트워크분석 방법을 사용하여 미션 토픽 7개를 추출하고 핵심 키워드를 중심으로 네트워크를 도출하였다. 분석결과, 사회적기업의 사회적 목적은 크게 세 가지로 '사회적 기업이 달성하고자 하는 사회적 목적', '목적을 달성하기 위한 활동 내용', '목적을 달성하기 위한 운영 방법'으로 나타났다. 본 연구는 사회적기업의 미션 분석을 통해 사회적기업의 경제적 가치 실현뿐만 아니라 사회적경제 관점에서 사회적 목적 수립 및 실천의 중요성을 강조하였다는 것에 의의가 있다. The study explores social enterprises' social goals by analysing their mission so as to better understand their perceptions of social problems. Based on the analysis, the study reconsiders the mission of the current era of the Korean social economy. Accordingly, self-disclosed social enterprise data were collected and analyzed using LDA topic modeling and social network analysis methods. Seven mission topics were extracted, and the network centering on key keywords was derived. The analysis results largely divided the social purposes of social enterprises into three categories: 'social purpose that social enterprises want to achieve', 'activities to achieve the purpose', and 'operation method to achieve the purpose'. The study is meaningful in that it emphasizes the importance of establishing and implementing social goals from the point of view of the social economy as well as realizing the economic value of social enterprises by analyzing their mission.

Macromolecules Isolated from Phellinus pini Fruiting Body: Chemical Characterization and Antiviral Activity

이새미,JINCHENGMIN,이윤희,김우정,박제권,박용일,장원종,신현동,Andriy Synytsya 한국고분자학회 2010 Macromolecular Research Vol.18 No.6

Two major polymers, EP-AV1 and EP-AV2, were purified from the hot-water extract of the Porodaedalea pini (Brot.) Murrill (syn. Phellinus pini) fruiting body by 75% ethanol precipitation and size-exclusion chromatography. These polymers were shown to be polysaccharides consisting of glucose as the main sugar residue as well as other minor sugars, such as galactose, xylose and mannose, and are variants of β-1,3-glucans, with high molecular masses,1,006 and 100 kDa, respectively. Fourier-transform infrared and elemental analysis suggested that these polymers contained certain level (~10% in dry mass) of phenolic compounds. Both polymers inhibited plaque formation in Vero cells caused by herpes simplex virus 1 (HSV-1) by 91% and 93% at 5 g/mL, and by the coxsackie virus B3 (CVB3) in HeLa cells by 32% and 84% at 1 mg/mL, respectively. On the other hand, their cytotoxicity to both cells was negligible. Their selectivity indices (ratio CC50/EC50) against the HSV-1 virus were quite high, >25,000 (EP-AV1) and >16,670 (EPAV2),respectively. These polysaccharides also inhibited the neuraminidase activity in a dose-dependent manner but only at relatively higher concentrations. These results suggest that these water-soluble polysaccharides are promising agents for the treatment of HSV-1 infections.

굴 패각 생석회 제조를 통한 공업용 석회 대체제로서 가능성 평가를 위한 기초연구

이새미,이준희,정진희,최영익,정연화,정인철,김재홍 한국폐기물자원순환학회(구 한국폐기물학회) 2016 한국폐기물자원순환학회 춘계학술발표논문집 Vol.2016 No.-

국내의 굴 패각은 주로 동남권 지역에서 발생하는데 한 해 발생량은 약 280,000 ton에 이르고 있다. 이러한 굴 패각은 주로 패화석 비료 및 채묘용으로 대부분 재활용 되고 있으나, 발생량의 약 35.7%, 약 100,000 ton 가량이 미처리 야적되어 주변 경관저해는 물론 악취 발생 등의 환경위해성 초래 및 자원의 낭비가 심화되고 있는 실정이다. 본 연구는 이러한 굴 패각의 처리를 위해 굴 패각의 공정조건 변화에 따른 특성변화를 분석하고 공업용 석회품질 조건과 비교하여 공업용 석회 대체제로서 자원화 가능성과 활용도를 평가하는데 그 목적이 있다. 실험에 사용된 시료는 부산광역시 G구 일원에 야적된 굴 패각 폐기물을 채취하였으며 실험방법은 소성온도 (600 ~ 1200℃), 소성시간(1 hr ~ 6 hr) 공정 변화에 변수를 두어 최적소성조건을 도출하였다. 소성온도 변화 결과, 온도가 높아질수록 CaO 함량이 높게 나타나 900℃ 이상에서도 95.5%의 적합한 수치를 나타내어 이를 소성 시간 변수 실험의 소성온도로 결정하였다. 소성온도 900℃에서 소성시간 변화에 따른 CaO 함량 분석 결과 6 hr에서 함량이 가장 우수했으나 2 hr에서도 95.0%의 안정적인 수치를 나타내었다. 「한국 석회석 가공업 협동조합 표준 공업용석회 기준」에 근거하면 특급 공업용석회의 CaO함량은 93.0% 이상이며 이를 만족하는 경제적 조건으로는 소성온도 900℃ 및 소성시간 1 hr, 소성온도 600℃ 및 소성시간 4 hr이 있다. 소성온도 600℃ 및 소성시간 4 hr 조건이 온도가 낮아 경제적이나 시간이 긴 점을 고려하면 생산량에 있어 900℃ 및 소성시간 1 hr 조건이 더 유리하다고 보여진다. 위의 결과를 바탕으로 굴 패각 생석회 제조를 통한 공업용 석회 대체제로서의 가능성이 충분하다고 판단된다.

개에서 발생한 기관 허탈의 진단과 관리

이새미,윤기영,서경원,최호정,정성목,송근호,조종기,박성준 忠南大學校 獸醫科大學 附設 動物醫科學硏究所 2012 動物醫科學硏究誌 Vol.19 No.1

A 11-year-old Yorkshire terrier anesthetized for computed tomography. The dog showed cyanosis and syncope during postanesthetic recovery, therefore drug administrated parenterally. Goose-honking was noticed after full recovery. As a result of survey radiography and fluoroscopy, grade 4 tracheal collapse was diagnosed. Prescription for the dog was oral administration of hydrocodone 0.22 mg/kg. theophylline 20 mg/kg, prednisone 0.5 mg/kg, amoxicillin 22 mg/kg and chlorpheniramine 2 mg/kg twice a day for 3 days. A 10-year-old Pomeranian was diagnosed as grade 2 traceal collapse at the local animal hospital 2 years before being referred to the veterinary teaching hospital of Chungnam National University. On physical examination, goose-honking, coughing and intermittent open-mouth breathing. Tracheal narrowing was observed on survey einradiography and fluoroscopy. Oral administration of theophylline 13 mg/kg, enrofloxacin 5 mg/kg, chlropheniramine 0.5 mg/kg twice a day was prescribed for 2 weeks.

Clinical Usefulness of Monitoring Cytomegalovirus-Specific Immunity by Quantiferon-CMV in Pediatric Allogeneic Hematopoietic Stem Cell Transplantation Recipients

이새미,김예진,유건희,성기웅,구홍회,강은숙 대한진단검사의학회 2017 Annals of Laboratory Medicine Vol.37 No.3

Cytomegalovirus (CMV) is a well-established cause of morbidity and mortality in pediatric recipients of allogeneic hematopoietic stem cell transplantation (allo-HSCT). CD8+ T-cells are important for controlling CMV infection. We conducted a prospective pilot study to investigate the clinical utility of measuring the CMV-specific T-cell immune response using the QuantiFERON-CMV assay (QF-CMV) in pediatric allo-HSCT recipients. Overall, 16 of 25 (64%) patients developed CMV infection. QF-CMV was evaluated in these 16 patients during the early and late phases of the first CMV infection post allo-HSCT. Whereas the initial QF-CMV results during the early phase of CMV infection did not correlate with the course of the corresponding infection, the QF-CMV results post resolution of the first CMV infection correlated with the recurrence of CMV infection until 12 months post allo-HSCT; no recurrent infections occurred in the four QF-CMV-positive patients, while recurrent infections manifested in five of eight QF-CMV-negative (62.5%) and all three QF-CMV-indeterminate patients (P=0.019). In spite of the small number of patients examined, this study supports the potential application of monitoring CMV-specific T-cell immunity using the QF-CMV assay to predict the recurrence of CMV infection in pediatric allo-HSCT recipients.

First Report of Yokenella regensburgei Isolated from the Wound Exudate after Disarticulation Due to Diabetic Foot Infection in Korea

이새미,강영진,허희재,기창석,이남용 대한임상미생물학회 2015 Annals of clinical microbiology Vol.18 No.4

Yokenella regensburgei, a member of the family Enterobacteriaceae, is rarely isolated in humans. Here, we report a 71-year-old man with diabetic foot infection from which Y. regensburgei was isolated. Following debridement and disarticulation of the foot, an exudate specimen was obtained, from which Gram- negative bacilli were recovered. The organism was identified as Y. regensburgei using the Vitek 2 system (bioMérieux, USA) and 16S rRNA and gyrB gene sequencing. To our knowledge, this is the first case of Y. regensburgei isolation in Korea. (Ann Clin Microbiol 2015;18:-139)

군집 비행 드론의 충돌 방지를 위한 UWB 레이다의 속도 감응형 CFAR 최적화 연구

이새미,문민정,천형일,이우경 한국정보통신학회 2021 한국정보통신학회논문지 Vol.25 No.3

In this paper, Ultra Wide-Band(UWB) radar sensor is employed to detect flying drones and avoid collision in dense clutter environments. UWB signal is preferred when high resolution range measurement is required for moving targets. However, the time varying motion of flying drones may increase clutter noises in return signals and deteriorates the target detection performance, which lead to the performance degradation of anti-collision radars. We adopt a dynamic clutter suppression algorithm to estimate the time-varying distances to the moving drones with enhanced accuracy. A modified Constant False Alarm Rate(CFAR) is developed using an adaptive filter algorithm to suppress clutter while the false detection performance is well maintained. For this purpose, a velocity dependent CFAR algorithm is implemented to eliminate the clutter noise against dynamic target motions. Experiments are performed against flying drones having arbitrary trajectories to verify the performance improvement. 본 연구에서는 군집 드론 시스템에서 이동 드론의 충돌방지를 위해 레이다를 도입하였다. 드론은 비행 중 불규칙한 속도 변화로 인해 반사파의 클러터가 증가되어 탐지 성능이 저하되고 이로 인해 충돌 방지 레이다의 성능에 영향을 준다. 본 논문에서는 UWB(Ultra Wide-Band) 레이다를 적용하여 비행하는 드론을 탐지하고, 반사파 신호 분석을 통해 획득한 거리 및 속도 정보의 정확도를 개선하는 방안을 제시한다. 이동 드론의 속도 변화에 따른 속도 감응형 CFAR(Constant False Alarm Rate)를 구현하여 오경보율을 일정하게 유지하면서 클러터를 효과적으로 제거하는 방안을 구현한다. 알고리즘의 검증을 위해 실제 상용 드론에 대한 레이다 관측 실험을 수행하고 불규칙하게 비행하는 드론의 탐지 성능이 개선됨을 보인다.

외식산업에서 북한이탈주민의 남한생활만족에 영향을 미치는 사회문화적응에 관한 연구모델

이새미,구동우 한국외식산업학회 2022 한국외식산업학회지 Vol.18 No.3

The purpose of this study is to investigate the relationship between person-environment fit, self-efficacy, sociocultural adjustment, and life satisfaction of North Korean defectors. To achieve this research purpose, five hypotheses were proposed, and a research model for sociocultural adjustment for life satisfaction in South Korea was examined. A research survey was conducted on 72 North Korean defectors working in the restaurant industry in South Korea. The results of this reasearch can be summarized as follows. First, the person-environment fit of North Korean defectors affected self-efficacy. Second, the person-environment fit of North Korean defectors did not affect sociocultural adjustment. Third, self-efficacy influenced sociocultural adjustment. Fourth, self-efficacy influenced the life satisfaction in South Korea. Fifth, sociocultural adjustment influenced the life satisfaction in South Korea. Based on these results, we provided theoretical and practical implications.

디지털 미디어를 통한 북한 음식에 대한 간접 경험과 방문의도의 구조적 관계

이새미 한국IT서비스학회 2020 한국IT서비스학회 학술대회 논문집 Vol.2020 No.-

디저트카페 품질과 친환경 행동이 고객 신뢰와 충성도에 미치는 영향: MZ세대를 중심으로

이새미,박상언,이드보라 한국프랜차이즈경영학회 2022 프랜차이즈경영연구 Vol.13 No.1

Purpose: Recently, it is common to see cases where an amount similar to the cost of a meal is spent on dessert, or an amount greater than the cost of a meal is spent on dessert. The generation MZ is showing a tendency of 'value consumption' by consuming values and beliefs in consideration of the recent impact on society and the environment. Therefore, this study aims to analyze the effect of dessert cafe quality and eco-friendly behavior on customer trust and loyalty targeting the generation MZ who have visited desert cafés. This study examined the mediating role of customer trust in the relationships between desert café quality, eco-friendly behavior and customer loyalty, and also the moderating effect of and eco-friendly behavior on customer trust and customer loyalty. Research design, data, and methodology: To achieve purposes of this study, 229 data were collected from respondents who visited desert café and analyzed using measurement model (reliability test and correlation analysis), Fornell-Larcker Criterion and Heterotrait-Monotrait Ratio (HTMT) assessment, and structural equation model (PLS-SEM) with SPSS 22.0 and SmartPLS 3.3.7. Results: The research results are as follows. First, desert cafes’ quality positively influenced customer trust but did not customer loyalty. Second, desert cafes’ eco-friendly behavior positively influenced customer trust and customer loyalty. Fourth, the interaction term of dessert cafe quality and eco-friendly behavior did not influence customer trust and customer loyalty. Conclusions: This study emphasized the necessity of service quality and eco-friendly behavior of dessert cafes by examining the relationship between the quality of dessert cafes and eco-friendly behaviors, customer trust and loyalty. It also found the importance of the role of trust in securing loyal customers. In order to secure and retain loyal customers, the owners of dessert cafes should make efforts to improve the quality of the cafes’ products and services so that customers can feel a sense of trust, and actively publicize that they are practicing eco-friendly management. As a result of this study, it is intended to provide practical implications for the management of dessert cafes by understand ing the effects of product and service quality and eco-friendly behaviors of companies to bakery industry workers and start-ups.