• 천문학회지
• /
• 제21권1호
• /
• pp.79-95
• /
• 1988

To examine relations between stellar activity and rotation we estimated parameters of stellar activity such as $R'_{HK}$, $R'_{MgII}$, $R'_{CII}$, $R'_{CIV}$ and $R'_{X-ray}$ from the published data which measure the activity levels of stellar chromospheres, transition regions and coronae. In the present study we considered only the main sequence stars in an attempt to minimize the influence of other stellar parameters such as radius, age and stellar convection on stellar activity since they are also known to affect the magnetic field generation. In the present analysis we selected only those stars that satisfy the following conditions: (1) flux measurements are available together with Ca II fluxes and (2) rotation periods are determined by Ca II observations. We derived relations between the ${\bar{R}}ossby$ number $R_o$ and stellar activity $R'_{HK}$, $R'_{MgII}$, $R'_{CII}$, $R'_{CIV}$ and $R'_{X-ray}$ and assessed the relations by plotting $R'_{HK}$, $R'_{MgII}$ and $R'_{X-ray}$ against rotation period $P_{rot}$ for comparison with observations. From the comparison it is found that as far as the rotation-activity relation is concerned, (1) normalized surface flux $R'_{HK}$ is better than the surface flux $F'_{HK}$, in the sense that $R'_{HK}$ differentiates the color dependence better and (2) $R'_{HK}$ defined by Rutten (1984) describes the observations notably better than $R'_{HK}$ of Noyes et al. (1984).

• The Journal of Asian Finance, Economics and Business
• /
• 제7권2호
• /
• pp.151-156
• /
• 2020

Small and medium enterprises (SMEs) play a very important role in developing countries. In Vietnam, SMEs operating in the field of handicrafts, besides contributing to the economy, also tasked to maintain and develop traditional handicrafts. However, accessing loans from banks of SMEs faces many difficulties. This study explores the determinants of bank lending decision for SMEs, particular, in traditional handicrafts business. Using dataset based on a survey conducted in Binh Duong province, Vietnam, we investigated to what determinant effects for loan approval. The analytical methods used include descriptive statistics for overall assessment, principal component analysis and regression to examine determinants of lending decisions. The results indicate that company's collateral was the most positive determinant to bank lending decision, follow by company's business plan. The role of company's leader is very important for banks considers to approve credit because company's leaders experience and relationship with stakeholders as well as banks have positive relations with bank's lending decision. Agreed with previous studies, the company's financial statement and company's credit history with banks are also significant determinants for lending decision. Whereas, the business environment seam unaffected lending decision as their relations is not significant..

• International Journal of Contents
• /
• 제17권1호
• /
• pp.1-10
• /
• 2021

Visual analytics is an emerging research field that combines the strength of electronic data processing and human intuition-based social background knowledge. This study demonstrates useful visual analytics with Tableau in conjunction with semantic network analysis using examples of sentiment flow and strategic communication strategies via Twitter in a blockchain domain. We comparatively investigated the sentiment flow over time and language usage patterns between companies with a good reputation and firms with a poor reputation. In addition, this study explored the relations between reputation and marketing communication strategies. We found that cryptocurrency firms more actively produced information when there was an increased public demand and increased transactions and when the coins' prices were high. Emotional language strategies on social media did not affect cryptocurrencies' reputations. The pattern in semantic representations of keywords was similar between companies with a good reputation and firms with a poor reputation. However, the reputable firms communicated on a wide range of topics and used more culturally focused strategies, and took more advantages of social media marketing by expanding their outreach to other social media networks. The visual big data analytics provides insights into business intelligence that helps informed policies.

• 한국간호교육학회지
• /
• 제27권1호
• /
• pp.29-38
• /
• 2021

Purpose: The purpose of this study was to describe the meaning of incivility experienced by nursing students in relations with nurses during clinical practice. Methods: This is a descriptive qualitative study that included thirty participants using convenience sampling in universities in S, J, Ch, and C provinces. Data saturation was achieved and methodological rigor was established. Qualitative content analysis was used to inductively determine categories. Results: The four categories derived from analysis were 'left alone at clinical field', 'treated as an assistant', 'not respected as a person' and 'ignored future dreams'. Conclusions: Nursing students continue to carry out repetitive, low-risk tasks, for which they are not properly trained due to the lack of practical guidance in clinical practice. During clinical practice, they are not respected as persons by nurses and are negatively influenced by nurse professionals. A solution to this requires organic cooperation and policy preparation at universities and hospital sites to improve practical training of nursing students.

• 한국문헌정보학회지
• /
• 제37권1호
• /
• pp.5-25
• /
• 2003

사회가 복잡해지면서 많은 사람들이 여러 경로를 통해 정신적 상처를 입고 마음의 병을 앓고 있다. 이런 사람들에 대한 도서관적 봉사방법으로 정선된 책을 통한 정신치료가 있는데 이것을 독서치료라고 한다. 우리나라에서는 독서치료에 대한 관심이 적어 그다지 많이 연구되지 않았고, 도서관에서의 봉사도 활발하지 않았지만 최근 이것에 대한 관심이 점차 높아지고 있다. 따라서 본 연구에서는 독서치료에 대한 도서관 봉사의 가장 기본적 도구인 상황별독서목록을 만들기 위하여 독서치료 대상자의 상황을 분류하기 위한 기준을 마련하였는데 제1차적 기준은 생물학적 특성으로서의 성과 연령이고 2차적 기준은 가정, 학교, 직장 등 공간적 특성, 3차적 기준은 인간관계이다.

• 한국콘텐츠학회논문지
• /
• 제11권12호
• /
• pp.893-908
• /
• 2011

본 연구는 COEX에서 개최된 2011 한국국제관광전(2011년 6월2일~6월 5일)을 관람하고 출입구로 나오는 참가자들을 대상으로 방문객의 참가동기가 만족도, 재방문의도 및 추천의도에 미치는 영향을 알아보기 위하여 현장 설문조사를 실시하였다. 통계분석은 SPSS 12.0과 AMOS 6.0의 통계 프로그램을 사용하였다. 분석결과는 전시컨벤션 관리자에게 실무적인 시사점을 제공하고자 하였다. 실증분석을 토대로 연구결과를 요약하면 다음과 같다. 첫째, 참가동기에 대한 요인분석을 실시한 결과 지식추구, 친목성, 일탈성, 지역특성의 4가지로 차원 화 되었다. 둘째, 참가동기를 지각하는 정도가 높으면 높을수록 만족은 높아지는 것으로 나타났다. 셋째, 지식추구, 친목성, 지역특성 탐구에서 재방문의도와 인과관계가 있는 것으로 나타났다. 넷째, 지식추구, 친목성, 일탈성에서 추천의도와 인과관계가 있는 것으로 나타났다. 다섯째, 고객만족은 재방문의도 및 추천의도와 인과관계가 있는 것으로 나타났다.

• 한국언론정보학보
• /
• 제37권
• /
• pp.171-203
• /
• 2007

이 연구는 인크로치먼트(encroachment) 개념을 적용해 한국 정부조직의 전문성 수준을 실증적으로 측정해 보기 위해 시도됐다. 구체적으로 한국의 중앙정부, 지방자치단체 조직의 PR 업무 연관성의 정도와 조직 내 PR 책임자의 업무 지향성과, 전문성을 계량적으로 측정하였다. 이 연구는 특히 지난 2004년 연구 결과와 비교해 3년이 지난 2006년 현재 시점에서 한국 정부조직 홍보 책임자의 업무 지향성, 전문성, 스키마 수준의 진화 정도를 구체적으로 보여주고자 하였다. 이를 위해 중앙정부 19곳, 지방자치단체 16곳의 홍보 책임자를 대상으로 심층 설문조사를 통해 한국 정부조직의 홍보 업무에 대한 지형구조와 의식의 단면을 계량적으로 측정하였다. 분석결과 (1) 한국 정부 조직 내 홍보 책임자의 업무 전문성 정도를 보여주는 인크로치먼트는 여전히 심각 수준이었으며, (2) 한국 정부조직의 PR 업무는 주변적이고, 보조적이며, 기술적인 위치에 머물러 있는 것으로 나타났다. 그러나 (1) 정부 조직 내 홍보 업무의 인크로치치먼트가 심각한 수준이긴 하지만, 홍보 업무의 효과적인 수행을 위해 직무 또는 연수교육이 활발해지고 있는 등 업무의 인크로치먼트를 줄여 나가려는 시도가 이루어지고 있으며, (2) 홍보업무는 전공교육이나 관련 경험을 필요로 하는 전문 영역이며, 전문가적 소양이나 직무능력을 갖춘 사람이 맡아야 한다는 의지나 신념이 강화되고 있음이 발견됐다.

• 한국경영과학회:학술대회논문집
• /
• 한국경영과학회 1998년도 추계학술대회 논문집
• /
• pp.28-31
• /
• 1998

This paper describes the differences of the information system's success factors to improve the end-user's performance according to the job characteristics. A modified model of DeLone and McLean's IS success model is proposed with the two added variables of the top management concern and the IS department support. The model is validated using data collected from a field study of 3872 users on 3 Korean companies. ANOVA, correlation analysis, and stepwise regression are used to test research hypotheses. The results of the study indicate the following implications. First the top management concern and the IS department support have the significant relation with the system usage and the user satisfaction. Second, the system quality has an influence on the user satisfaction more than on the system usage. And the information quality has an influence on the system usage more than on the user satisfaction. Third, the system usage has more relations to the user's performance in the logistics function and R&D function. The user satisfaction has more relations to the user's performance in the sales and the A/S function. Therefore information system strategy to increase the user's performance must be differentiated according to job characteristics.

• Advances in Computational Design
• /
• 제2권4호
• /
• pp.257-271
• /
• 2017

There are many plain concrete arch bridges in Iran that have been used as railway bridges for more than seventy years. Owe to the fact that these bridges have not been designed seismically, and even may be loaded under high-speed trains, evaluation of fundamental frequencies of the bridges against earthquake and high-speed train vibrations is necessary for considering dynamics effects. To evaluate complex behavior of these bridges, results of field tests are useful. Since it is not possible to perform field tests for all arch bridges, these structures should be simulated correctly by computers for structural assessment. Several parameters are employed to describe the bridges, such as number of spans, length of spans, geometrical and material properties. In this study, results of field tests are used for modal analysis and adapted for 64 three dimensional finite element models with various physical parameters. Computer simulations show length of spans has important effect on fundamental frequencies of plain concrete arch bridge and modal deformations of bridges is in longitudinal and transverse directions. Also, these results demonstrate that fundamental frequencies of bridges decrease after increasing span length and number of spans. Plus, some relations based in the number of spans (n) and span length (l) are proposed for calculation of fundamental frequencies of plain concrete arch bridge.

• Journal of Information Science Theory and Practice
• /
• 제3권1호
• /
• pp.66-76
• /
• 2015

This research uses a new approach to analyze the extent of influence journal papers have on the progress of varied research fields by estimation of subject-based influence on research other than impact factor that relies on citation index. It is initiated with the hypothesis that earlier established citation relations between journal and citing paper, which reveals the research field that contains the highest citation index and hence has received the greatest contribution from a particular journal, would have inconsistent contribution to the research field over the year of journal publication. The target research is primarily 128 journal papers and 4,123 citing papers from Information Systems Research published in the years 2001, 2004, 2007, and 2010. The characteristics of citation history and hallmarks of research field of citing papers were studied and analysis on significant distinction between citing fields based on the year of publication was performed. The analysis results show the order of citation rate to be highest from Computer Science (2,221 cases), Business & Economics (2,191 cases), and Information Science & Library Science (1,901 cases). The citation history of the journal, nonetheless, indicates increase in citation during 2-3 years after the earliest publication till it achieves constant citation. The statistical analysis shows significant variation in citing fields in accordance with the publication year; especially in 2010, journal contribution has increased in the fields of Business & Economics, Operations Research & Management Science, and Health Care Sciences & Services but, however, is reduced in Education & Educational Research and Social Sciences - Other Topics.