• 한국경영공학회지
• /
• 제23권4호
• /
• pp.33-48
• /
• 2018

Despite that QR codes are spreading worldwide in Pin Tech, logistics distribution, etc., South Korea is staying at the level of using QR codes in limited areas such as website connection and marketing communication. The purpose of this study is to propose measures for more effective use of QR codes by examining the effects of personal innovativeness on user's behavioral intentions by applying personal innovativeness to QR codes. To this end, this study was intended to examine the relationships between performance expectancy (PE), effort expectancy (EE), social expectancy (SE), and personal innovativeness, which are variables used in the Unified Theory of Acceptance and Use of Technology (UTAUT) model among innovative technology acceptance models, and behavioral intentions. For this study, a questionnaire survey was conducted with students in collages in the metropolitan area in May 2018 and the results were statistically verified using IBM SPSS 21. The results showed that PE, EE, and SE had significant positive(+) effects on personal innovativeness and behavioral intentions of QR code users. The mediating effects of personal innovativeness were tested and the results indicated that personal innovativeness partially mediates between PE and behavioral intentions and between EE and behavioral intentions but not between SE and behavioral intentions. The fact that since QR codes are expressed as a component to users through other media rather than its internal factors, the personal innovativeness of QR code users plays an important role in increasing the use of QR codes could be identified through this study.

• 한국정보시스템학회지:정보시스템연구
• /
• 제23권4호
• /
• pp.49-74
• /
• 2014

The introduction of smartphone caused the most revolutionary change in the domestic telecommunications market after the digital revolution. However, due to the saturation of the local market, it is expected to post negative growth in 2016 and the sales of national communication carriers is in stasis. Thus, the smartphone industry is starting to shift its marketing efforts to secure the silver generation who still has room for increase in the rate of smartphone usage. As the silver generation has physical limitations and differences in needs, the marketing strategy based on the smartphone utilization is not appropriate. This study suggests the new silver generation, who has high income level and similar characteristics to the younger generation, as the new customer segment for smartphone. We analyze the effects of the major variables of UTAUT on smartphone use, as well as examine how these relationships differ between the new silver and the net generation. We verified the hypotheses using a survey with 309 smartphone users. The research findings supported the hypotheses regarding the effects of performance expectancy, effort expectancy and facilitating conditions on smartphone use, but did not support the hypothesis on the effect of social influence. The result of the group comparisons showed that both generation have similar characteristics on innovativeness and cognitive absorption, but the moderating effect of age on performance expectancy, effort expectancy and use is stronger in conjunction with the new silver generation. The study results are expected to be used in establishing a marketing strategy for the new silver generation.

• 품질경영학회지
• /
• 제50권1호
• /
• pp.43-61
• /
• 2022

Purpose: The purpose of this study was verifying factors that affect to intention to use AI financial services and finding a way of building an user oriented AI ecology. Methods: This study used the UTAUT (Unified Theory of Acceptance and Use of Technology) model with independent variables such as performance expectancy, effort expectancy, social influence, facilitating conditions, trust, personal innovativeness and AI understanding as moderating variable. The data was collected through online & offline survey with questionnaire from 330 financial customers. Results: As a result, the analysis suggested that the performance expectancy, social influence, facilitating conditions, personal innovativeness are statistically significant to the intention to use AI. It was also found that AI knowledge of users differently influence the intention to use through the moderating effect on the facilitating conditions. Conclusion: Performance expectancy, social influence, facilitating conditions, personal innovativeness have positive causation to the intention to use in AI financial service. On the facilitating conditions, unlike other variables, it was found that the user's intention to use was different by the level of AI understanding. It means that customers could have the strong intention to use AI even though they don't have enough pieces of knowledge on the factors. Customers seem to be of recognition that the technology has certain benefits for themselves. The facilitating factors are significantly affected by AI understanding and differently effect on the intention to use AI.

• 보건행정학회지
• /
• 제7권1호
• /
• pp.155-182
• /
• 1997

Objectives : This study was designed to compare North Korea and South Korea in measures of the quality of life (physical quality of life index and human development index) and to investigate the impact of selected medical and socioeconomic factors on PQL variables. Data and Methods : The World Bank, the United Nations Development Programme, and Population Reference Bureau were the principal sources of statistical data of 121 countries. Variables included infant mortality, life expectancy at birth, literacy rate, secondary school enrollment (male and female), GNP per capita, population per doctor, daily calorie supply per capita, and a composite PQL index. The Ordinary Least Square model was employed for cross-countries analysis. Findings : Both countries under quite different political and economic systems saw big improvememts in the quality of life, reducing mortality and prolonging life expectancy during the past three decades. In recent decad, however, North Korea has experienced abrupt exacerbation in the quality of life. Significant improvements in infant mortality of the population wer attributable mainly to GNP per capita and the secondary school enrollemt of female. The principal predictors of life expectancy at birth were population per doctor, infant mortality, and literacy rate. The secondary school enrollment of female and population per doctor were significantly associated with improvements in the physical quality of life index (PQLI). Conclusion : The results of this study confirmed a point illustrated by other studies : The association between quality of life as a measure of health status and socioeconomic factors was strong and positive. The important contribution of educational attainment in general, female education level in particular to improvements in the quality of life deserves good news for building an integrated health care system in the reunified Korea, taking into account the high level of education two koreas are enjoying. Meanwhile, when a sharp drop in the quality of life has been observed in North Korea under serious economic difficulties and food shortage in recent decade, the significant contribution of economic development to improvements in the quality of life poses bad nows for reunifying Korean health care in economic terms.

• 벤처창업연구
• /
• 제12권5호
• /
• pp.79-87
• /
• 2017

기존 온라인 창업 교육 연구에서는 교육이 실제 창업에 미치는 영향에 대해서만 연구가 진행됐을 뿐 교육 효과성에 대한 분석이 이루어지지 않았다. 본 연구에서는 이러한 선행 연구의 한계점에서 벗어나 사회적 현존감을 이용해 학습 기대감과 교육 만족도에 미치는 영향력을 조사했다. 또한 학습 기대감을 매개 변수로 활용해 사회적 현존감과 교육 만족도 관계에서 어떠한 영향력을 보이는지 살펴보았다. 연구 가설 검증을 위해 전국 189명의 창업 관련 온라인 수업을 들은 대학원생들에게 설문 조사를 실시하였다. 선행 이론에 근거해 가설과 설문문항을 만들었으며, 교육 만족도의 경우 운영 만족도와 콘텐츠 만족도로 구분해 미치는 영향력의 정도를 구분하였다. 구조방정식을 이용한 분석 결과 사회적 현존감은 학습 기대감에 긍정적인 영향을 나타냈다. 다음으로 학습 기대감은 운영 만족도와 콘텐츠 만족도에 긍정적인 영향력을 보였다. 마지막으로 사회적 현존감이 운영 만족도에 영향을 미칠 때 학습 기대감은 완전 매개효과를 보였으며, 콘텐츠 만족도에 영향을 미칠 때는 간접 매개 효과를 보였다. 본 연구의 결과가 주는 시사점은 온라인 창업 교육을 실시할 때 학습자의 상호작용을 활발히 할 수 있는 방법이 필요하고 학습 운영의 만족도를 높일 때는 학습자의 부담감을 줄여 기대감을 높여야지만 효율적으로 작용된다는 것을 알 수 있었다.

• 대한치과기공학회지
• /
• 제35권4호
• /
• pp.405-414
• /
• 2013

Purpose: The purpose of this study was to examine the relationship of the general characteristics of health-related majors to their life expectancy scale, depression scale, health perception scale, subjective wellbeing scale, somatic symptom scale and college life stress scale. And it's also meant to analyze influential factors for their stress about college life. Methods: The subjects in this study were the students who were in the department of dental laboratory technology and the department of dental hygiene at a college located in the region of Iksan, North Jeolla Province. Data were gathered in November and December, 2012. The life expectancy scale, depression scale, health perception scale, subjective wellbeing scale, physical symptom scale, somatic symptom scale and college life stress scale of the general characteristics were analyzed by t-test and one way analyses of variance (ANOVA) and the Duncan's multiple range test at the 95% confidence level to assess the statistical significance. And stepwise multiple regression analysis was conducted to determine what factors would affect the stress of the students about college life. The data were analyzed with the windows ver. 12.0(SPSS GmbH, Germany) statistical software program. Results: Among the general characteristics, there were significant differences according to gender and age in all the variables that were life expectancy scale, depression scale, health perception scale, subjective wellbeing scale, physical symptom scale and college life stress scale. 61.3% of the students responded they slept for six hours or less, and the respondents who slept for six hours or less scored significantly statistically lower in health perception scale, subjective wellbeing scale and physical symptom scale. As for college life stress, the respondents who got depressed more often, whose subjective peace or happiness was lower, whose life expectancy was lower, who had worse physical symptoms, whose living standard was lower and whose academic year was lower were under heavier stress about their college lives. Conclusion: As the worse physical health and worse mental health(life expectancy, depression, health perception, subjective wellbeing and physical symptoms, etc.) of the college students led to heavier stress about college life, how to promote their physical health and mental health should discreetly be considered, and every necessary measure should be taken to improve their physical and mental health.

• 한국노년학
• /
• 제41권4호
• /
• pp.547-566
• /
• 2021

본 연구의 목적은 노인의 성별에 따른 사회활동 유형별 참여가 건강수명에 미치는 영향력을 분석하는 것이다. 이를 위해 고령화연구패널조사(KLoSA)의 1차(2006년)에서 7차(2018년)까지의 13년간 데이터 중 65세 이상 노인 4,029명(남성노인=1,710명, 여성노인=2,319명)의 자료를 사용하여 생존분석의 하나인 Cox 비례해저드모형(Cox proportional hazard model)으로 분석을 시도했다. 분석결과 첫째, 여성노인의 건강수명은 75.34세, 남성노인의 건강수명은 76.94세로 나타났다. 여성노인은 남성노인에 비하여 질병 및 장애의 발생 강도와 발생 비율이 더 컸고, 질병 및 장애가 발생한 노인의 비율도 더 높았다. 둘째, 남성노인과 여성노인의 건강수명에 공통적인 영향요인은 연령, 만성질환 수와 주관적 건강상태로 나타났다. 학력은 남성노인의 건강수명에만 유의한 것으로 나타났고, 거주지역, 과거 음주 경험, 삶의 만족도는 여성노인의 건강수명에만 유의한 것으로 나타났다. 셋째, 건강수명에 유의한 영향을 미치는 사회활동 유형은 남성노인의 경우 종교활동과 연고집단활동, 여성노인의 경우 종교활동으로 나타났다. 본 연구는 노인의 건강수명에 대한 사회적 활동 유형의 효과가 성별에 따라 다르다는 점을 보여준다. 또한, 건강수명 단축의 위험은 남성노인보다 여성노인이 상대적으로 높게 나타났다. 연구자들은 건강수명 연장을 위하여 성별 특성을 고려한 사회활동 참여의 기회 확대와 유형별 참여의 행태나 질에 대한 고려, 그리고 남녀 간 건강격차를 감소시키기 위한 정책개발의 필요성을 제안하였다.

• International Journal of Safety
• /
• 제9권1호
• /
• pp.35-42
• /
• 2010

We measured the concentrations of air pollutants at several residential sites, roadside sites and industrial sites in Iwate Prefecture, Japan. And the concentration distributions of air pollutants were estimated by atmospheric dispersion model using air emissions data. Based on those results, we calculated environmental risk of air pollutants emitted in Iwate Prefecture. As a result, it was found that the surround of factories with high emissions and highly toxic chemicals and the roadsides were high risk area, benzo(a)pyrene, formaldehyde and ozone exceeded the $10^{-5}$ risk level. Moreover, we tried to use "Loss of life expectancy: LLE" for an index to explain those risk to general public intelligibly. The total LLE of the carcinogenic chemicals was about 8.6 hours. Moreover, LLE of ozone was about 9.2 hours. Ozone has a big influence compared with the carcinogenic chemicals.

• 대한설비공학회:학술대회논문집
• /
• 대한설비공학회 2007년도 동계학술발표대회 논문집
• /
• pp.316-321
• /
• 2007

It is difficult for a superintendent or an operator of building service systems and equipment to decide the reasonable time for management of himself due to the shortage of his specialty for repair or replacement of a part of or whole equipment. But The reliable life expectancies for various building service equipment have not been prepared yet. This study shows the difference of optimal economic life and the decrease of running cost and energy consumption according to management level of the building equipment by the LCC analysis. The numerical model for building HVAC system was composed and analyses were performed for several parameters with management.

• The Journal of Advanced Prosthodontics
• /
• 제12권4호
• /
• pp.204-209
• /
• 2020

PURPOSE. Prevention of xerostomia and stress is important to prolong healthy life expectancy and improve the quality of life. We aimed to investigate the effects of tongue rotation exercise for increasing salivary secretions and stabilizing salivary stress hormone levels. MATERIALS AND METHODS. Twenty four participants without subjective oral dryness were enrolled. The exercises comprised tongue rotation exercise and empty chewing. The salivary stress hormone level was measured using a Salivary Amylase Monitor. Unstimulated whole saliva volume and salivary amylase activity were measured before tongue rotation exercise or empty chewing and subsequently 5, 10, and 15 minutes after these exercises. Differences in the rates of change of unstimulated whole saliva volume and salivary amylase activity were analyzed by repeated measure analysis of variance. RESULTS. Statistically significant differences among the rates of change were not observed after empty chewing for unstimulated whole saliva volume and salivary amylase activity at the four measurement times. However, the rate of change of unstimulated whole saliva volume and salivary amylase activity were statistically significantly different among the four time points: before the tongue rotation exercise and 5, 10, and 15 minutes post-exercise (P<.05 and P<.01, respectively). CONCLUSION. Tongue rotation is effective in increasing saliva secretion, reducing stress, improving oral function, and extending healthy life expectancy.