소셜 빅데이터를 활용한 소비자 인식의 네트워크 분석: 푸드테크를 중심으로

최현영,김동진 (사)한국조리학회 2022 한국조리학회지 Vol.28 No.8

Along with the rapid development of technology, the scope of food technology combined with food is rapidly expanding. The purpose of this study is to derive insights on food technology based on data generated by consumers online. Data collection was conducted using TEXTOM for two years from January 1, 2020 to December 31, 2021, using the keyword 'Food Tech' on Naver, Daum, and Google. The preprocessing process of words such as disused words was conducted, and a total of 14,126 keywords were derived. Word frequency, TF-IDF, and N-gram were analyzed, and UCINET6 programs were used for network analysis. The influence of nodes was identified through connection degree centrality, proximity centrality, mediation centrality, and Eigenvector centrality. In addition, the semantic structure and major issues were analyzed by examining the interaction structure between nodes through CONCOR analysis. As a major result, it was found that as the perception of food technology is high, it is paying attention to the innovation and market potential of the food technology industry, and it can be seen that the environmental impact is large. This study will be meaningful in that it identified consumers' perceptions and consumption patterns on food technology based on large-capacity text data, and suggested directions for developing new products and providing customized services.

기업 사회공헌의 참여동기 및 진정성에 관한 질적연구: 지역사회복지관과 의료복지현장 사회복지사 인식을 중심으로

최현영,최서경,배이진,정희선 사단법인 사회적기업학회 2023 사회적기업연구 Vol.16 No.2

본 연구는 사회서비스 현장에서 인식하는 기업의 사회공헌 활동의 참여동기와 진정성에 대해 심층적 이해를 돕고자 사회복지관과 의료복지 현장의 사회복지사 인식을 통해 탐색하였다. 이를 위해 의도적 표집방법으로 두 복지현장의 사회공헌 및 대응 업무 경험이 있는 사회복지사 총 10명을 대상으로 개별 심층면접을실시한 자료를 활용하였다. 연구결과로는 의미있는 진술이 총 133개, 이 중 핵심주제는 7개, 부주제는 총10개로 나타났고, 공통요소는 4개, 차이요소는 3개로 구분되었다. 구체적인 핵심주제는 안심과 소통, 참여시기와 지속, 책임자 역할, 실무자역량으로 나뉘었고, 차이요소에서는 소통방법, 실무자역량, 코로나19시기관심변화로 구분되었다. 이러한 연구의 결과를 바탕으로 본 연구에서는 기업 사회공헌 활동의 참여동기 및진정성에 대하여 현장에서의 이해를 확장시킬 수 있었으며, 이를 기반으로 실천적, 정책적 제언을 제시하였다.

전자연동장치의 무선 제어 인터페이스에 관한 연구

최현영 대한전기학회 2023 대한전기학회 학술대회 논문집 Vol.2023 No.5

무선통신기반 열차제어시스템의 사이버 보안 취약점 분석 및대응 기술에 관한 연구

최현영,채성윤 한국철도학회 2020 한국철도학회논문집 Vol.23 No.1

For safe and efficient railway operation, the train control system delivers the train control messages via wireless communication. In this radio-based train control system, the vital messages are transmitted between the onboard and wayside train control devices. When the integrity of train control messages is impaired due to the security threats, it causes fatal safety problems and major incidents. In addition, as the train control system is linked to networks, there are potential problems with cyber security threats such as message forgery and hacking. In this paper, we present the security threats and their corresponding security requirements for the radio-based train control system. We also propose the security device with authentication, encryption, and firewall function and perform its functional verification.

대학생이 지각한 부모애착과 역기능적 진로사고의 관계

최현영,서영석 한국상담심리학회 2005 한국심리학회지 상담 및 심리치료 Vol.17 No.3

본 연구는 대학생의 성별, 진로상담경험 및 지각된 부모애착수준이 역기능적 진로사고에 어떤 영향을 미치는가를 규명하고자 하였다. 서울지역에 소재한 4년제 대학에 재학 중인 209명의 남녀대학생들이 부모애착검사와 진로사고검사를 각각 평정하였다. 그 결과, 참여자들의 진로상담 경험여부와 부모애착 수준이 역기능적 진로사고에 영향을 미치는 것으로 밝혀졌다. 우선, 진로상담 경험이 있는 학생들은 진로상담 경험이 없는 학생들에 비해 수행불안이 더 높은 것으로 드러났다. 또한, 부모와의 애착수준이 낮을수록 의사결정혼란과 외적갈등을 더 많이 경험하고 있음을 알 수 있었다. 반면, 선행연구와는 달리 성별에 따른 역기능적인 진로사고에 유의미한 차이가 없는 것으로 드러났다. 이러한 결과들을 토대로 부모와의 애착의 중요성과 진로교육, 진로상담의 필요성에 대하여 제안하였다. This study examined how characteristics of college students(gender, previous career counseling experience) and their perceived parental attachment affect their dysfunctional career thoughts. Two-hundred nine college students were asked to fill out the Inventory of Parent and Peer Attachment and Career Thought Inventory. It was revealed that previous career counseling experience and degree of perceived parent attachment influenced the extent to which the participants held dysfunctional career thoughts. First, those with previous career counseling experience showed higher commitment anxiety, as compared with those with no previous counseling experience. Additionally, those who perceived less parental attachment were found to experience more decision-making confusion and more external conflict, as compared with those who perceived more parental attachment. Unlike the previous studies, however, the present study found no gender difference in terms of degree of dysfunctional career thoughts. Implications of the findings for career education and counseling are discussed.

2030 부산세계박람회 추진에 나타난 지역 경제 발전 이슈에 대한 인식

최현영,김동진 한국호텔관광학회 2023 호텔관광연구 Vol.25 No.12

This study aims to derive implications for confirming the regional economic necessity and purpose of promoting the 2030 Busan World Expo through big data analysis from a regional economic perspective. Data was collected using TEXTOM and was collected for one year, from July 1, 2022, to June 30, 2023. Data was derived from documents on Naver, Daum, and Google using the keywords ‘2030 Busan World Expo + Regional Development,’ and a total of 7,525 keywords were derived by conducting unnecessary research and preprocessing words such as stop words. Word frequency, TF-IDF, and N-gram were analyzed, and the UCINET6 program was used for network analysis. As a result of the analysis, the frequencies of important keywords related to regional development at the 2030 Busan World Expo were jobs, balanced development, economy, leap forward, and industry. In particular, pairs of words that can infer the role and performance of the host city, Busan, such as region-balanced development, traction vehicle-role, and Busan-jobs, were derived, confirming that positive expectations for regional development in Busan are recognized, and local activities. The importance of the Busan region, which has been identified as a primary cluster, is also recognized. On the other hand, in terms of the content of the discussion, there is a lack of in-depth discussion on regional economic development due to abstraction and superficial approach. Most importantly, each item of regional economic development that was raised as a necessity for hosting the World Expo, especially the purpose of regional development as the country's second growth axis, must be continuously discussed and promoted. Moreover, as seen in other mega event holding cases, we hope that the discussion and activities for the above development will continue through continuous re-challenge.

열처리 온도 및 분위기에 따른 다공질 실리콘의 구조 및 광학적 특성

최현영,임광국,전수민,조민영,김군식,김민수,이동율,김진수,김종수,임재영,Choi, Hyun-Young,Yim, Kwang-Gug,Jeon, Su-Min,Cho, Min-Young,Kim, Ghun-Sik,Kim, Min-Su,Lee, Dong-Yul,Kim, Jin-Soo,Kim, Jong-Su,Leem, Jae-Young 한국전기전자재료학회 2010 전기전자재료학회논문지 Vol.23 No.8

The porous Si (PS) was annealed at various temperature in air, argon, and nitrogen atmosphere. Structural and optical properties of the annealed PS were investigated by scanning electron microscopy (SEM) and photoluminescence (PL). It is found that the shape of pore is changed from circle to channel as increasing annealing temperature which was annealed in air and argon atmosphere. In case of PS annealed in nitrogen atmosphere, the shape of pore is changed from channel to circle with increase annealing temperature from 600 to $800^{\circ}C$. The PL peak position is blue-shifted with increasing annealing temperature. As annealing temperature increases, the PL intensity of the PS annealed in argon is decreased but that of the PS annealed in nitrogen is increased. It might be due to the formation of Si-N bonds and it passivates the non-radiative centers which is Si dangling bonds on the surface of the PS.

한국복지재단에 대한 인식도 조사 및 홍보 전략 개발을 위한 연구

최현영,문교정 한국복지재단 1996 동광 Vol.93 No.-

The Effect of Decreases in Left Ventricle Volume and Area During Ventricular Fibrillation on Resuscitation Outcomes

최현영,신명철,박찬우,문중범,천성빈,이희영,이태훈,서정열,안희철,조준휘 대한응급의학회 2010 大韓應急醫學會誌 Vol.21 No.6

Purpose: Dynamic changes in the dimensions of the left ventricle (LV) during cardiac arrest might influence the efficacy of CPR. However, the relationship between change in LV dimensions during cardiac arrest and CPR hemodynamics and outcomes have not yet been addressed. In the present study, we investigated changes in left ventricular volume and area during prolonged, untreated ventricular fibrillation (VF); we related those change to coronary perfusion pressure (CPP) during CPR and resuscitation outcomes. Methods: In 12 domestic male pigs weighing 40±3 kg, VF was electrically induced and left untreated for 15 min. CPR was performed for 5 min prior to defibrillation. CPR was continued until the return of spontaneous circulation (ROSC) or for a maximum of 15 minutes. Mean aortic pressure and right atrial pressures were measured and CPP was calculated. LV dimensions were continuously assessed by echocardiographic measurement during the 15 minutes of interval VF. Results: Six animals were successfully resuscitated. During the 15 minute interval of VF, LV area and volume were reduced in all animals. In animals that were not resuscitated,LV dimensions were significantly lower than those in resuscitated animals (p<0.01). These differences were observed after 10 minutes of VF. The animals with greater reduction in LV dimension during VF achieved significantly lower CPP during CPR in contrast to animals with larger LVs during VF. Conclusion: Greater decreases in LV volume and area during cardiac arrest are associated with low CPP during CPR and poor resuscitation outcomes. LV dimensions prior to starting CPR might therefore modulate the effectiveness of resuscitation interventions.

Effects of Interruption Growth on the Properties of ZnO Active Layers Grown by Using Plasma-assisted Molecular Beam Epitaxy

최현영,이동율,김진수,김종수,손정식,이주인,임재영,김건식,조민영,전수민,김도엽,김민수,임광국,김형근 한국물리학회 2010 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.57 No.3

ZnO active layers were grown on Si (100) substrates by using plasma-assisted molecular beam epitaxy (PA-MBE). The initial regions of the ZnO active layers were deposited by using an interruption growth method (IGM), with the following ZnO active layers being grown in succession for 80 min without interruption. X-ray diffraction (XRD), scanning electron microscopy (SEM), and photoluminescence (PL) measurements were carried out to investigate the structural and the optical properties of the ZnO active layers. The full width at half maximum (FWHM) of the rocking curve observed for the ZnO (002) XRD peak decreased from 0.191 to 0.176 and the intensity of the XRD peak increased with increasing Zn beam ON time. The surface morphology shows a net-like structure that changes with the Zn beam ON time. The PL intensity of the near-band-edge emission (NBE) peak is enhanced in the ZnO active layers grown on interrupted layers, and the NBE peak position is blue-shifted with increasing Zn beam ON time, which was caused by an enhancement of the tensile stress. The above results imply that the IGM is effective in improving the crystalline quality and the luminescence efficiency.