• 한국가스학회지
• /
• 제13권3호
• /
• pp.43-48
• /
• 2009

The energetic and environmental problems have been getting serious after the revolution of modern industry. Therefore, demand of gas as an eco-friendly energy source is increasing. With the demand of gas, the use of gas is also increased, so injury and loss of life by the fire have been increasing every year. Hence the influence on flame caused by Vapor Cloud Explosion in enclosure of experimental booth was calculated by using the API regulations. And the accident damage was estimated by applying the influence on the adjacent structures and people into the PROBIT model. According to the probit analysis, the spot which is 5meter away from the flame has nearly 100% of the damage probability by the first-degree burn, 27.8% of the damage probability by the second-degree burn and 14.5% of the death probability by the fire.

• 통상정보연구
• /
• 제14권2호
• /
• pp.3-27
• /
• 2012

중국의 정치적, 경제적 위상이 급등함에 따라 더욱 더 많은 다국적기업들이 중국 시장을 공략하기 위해 진줄 기회를 엿보고 있다. 특히 한국은 중국과 지리적으로 인접해 있으나 중국시장에 안착하지 못하는 안타까운 사례가 많다. 이에 본 연구는 중국에 진출해 있는 한국 제조 기업들을 대상으로 유통현지적응 정도를 조사하고, 이러한 현지적응에 미치는 영향요인을 문헌 연구를 통해 도출하였다. 146부의 설문지를 분석한 결과 기존의 연구들과는 달리 중국의 유통 환경적인 요인 중에서 유통경로의 길이가 유통 현지적응 정도에 긍정적인 영향을 미치는 것으로 나타났다. 게다가 기업의 전략적 자산 중에서도 유통 관계자산이 유통 현지적응 정도와 정(+)의 관계가 있음이 밝혀졌다. 이러한 결과를 통해 최근 중국 유통시장이 후진국의 수준을 벗어나 세계적인 수준으로 발돋움하고 있음을 알고 중국 시장 진출 기업은 과소평가 하지 않도록 유의해야 할 것이다.

• Computers and Concrete
• /
• 제7권1호
• /
• pp.17-38
• /
• 2010

This research aimed to investigate the influence of high-volume mineral admixtures (MAs), i.e., fly ash and slag, on the hydration characteristics and microstructures of cement pastes. Degree of cement hydration was quantified by the loss-on-ignition technique and degree of pozzolanic reaction was determined by a selective dissolution method. The influence of MAs on the pore structure of paste was measured by mercury intrusion porosimetry. The results showed that the hydration properties of the blended pastes were a function of water to binder ratio, cement replacement level by MAs, and curing age. Pastes containing fly ash exhibited strongly reduced early strength, especially for mix with 45% fly ash. Moreover, at a similar cement replacement level, slag incorporated cement paste showed higher degrees of cement hydration and pozzolanic reaction than that of fly ash incorporated cement paste. Thus, the present study demonstrates that high substitution rates of slag for cement result in better effects on the short- and long-term hydration properties of cement pastes.

• 한국공간구조학회:학술대회논문집
• /
• 한국공간구조학회 2005년도 춘계학술발표회 및 정기총회 2권1호(통권2호)
• /
• pp.215-226
• /
• 2005

To study the influence of an lower part on the seismic response of a spatial structure as the upper part of a structure, as a first step, authors subsititude the upper part and the lower part of a structure to single degree of freedom systems indivisually, and set up structural models connected by them. It is clarified that the mass ratio and the period ratio of an upper part to a lower part are important parameteres to find the amplification or reduction of the sesimic response of an upper part by considering of a lower part.

• 품질경영학회지
• /
• 제32권2호
• /
• pp.24-36
• /
• 2004

In order for electronic commerce to be successful, it must have a theoretical framework that considers the characteristics of the internet user who are consumers in the cyber space and impacts their purchase intentions. We were able to obtain participations of 316 people, and derived statistics by means of SPSS/PC version 10.0 and Amos 4.0 statistics package. We found that, the higher the degree of skill and the sense of challenge, the level of involvement and perceived service quality increased. And the degree of skill has a negative influence on awareness of perceived risk than the sense of challenge. Perceived service quality, perceived risk and involvement has a influence on purchase intentions.

• 아동학회지
• /
• 제19권1호
• /
• pp.211-227
• /
• 1998

The purpose of this research was to examine the effects of sensation seeking and socialization on the risk taking behavior of adolescents. The subjects were 460 3rd year high school adolescents (272 boys and 188 girls) in Seoul, Korea. Data were collected through questionnaires, including the Arnett Inventory of Sensation Seeking (1994) a socialization scale (mother's parenting style, parent's open communication and relationship with friends), and a risk taking scale devised by the researcher. The results showed that both the degree of sensation seeking and the socialization process influenced risk taking behaviors in both males and females. The effect of sensation seeking on risk taking behavior was mediated by the degree of communication with fathers for male but not for female adolescents. For males, sensation seeking directly and indirectly influenced risk taking behaviors through closeness with risk taking friends. For females, sensation seeking did not directly influence risk taking behavior but had an indirect influence through closeness with risk taking friends. Implications were discussed in terms of sensation seeking and socialization.

• 보건행정학회지
• /
• 제8권2호
• /
• pp.149-165
• /
• 1998

The purpose of this study is to examine the effect of the health status on the quality of life of the rural elderly, and to examine the conditional effect of socialsupport for that influence. 'Quality of life' used in this study was defined by unidimensional approach. The data were collected by conducting individual interviews with 296 rural elderly people aged 60 and the above who were living in one township of Kangwondo, between the time period of October and November 1995. The main findings are as follows: 1. Hierarchical regression analyses were carried out to examine the relative contribution of three set of variables on the quality of life. The first step, which included sociodemographic factors showed that the coefficient of determination (R$^{2}$) was 8% and income was a statisically significant variable. The second step, by adding health related factors, revealed that the R$^{2}$ was increased to 34% by 26% point and the degree of health recognition was the statistically significant variable. The third step, by projecting additionall social support related variables revealed that the R$^{2}$ was 42% 2. The conditional effect of social support was analyzed to examine the influence the health status has on the quality of life. The results are as follows: 1) The IADL and the degree of social contact interacted, resulting in that the higher degree of social contact boosted the stronger effect of IADL. 2) The effect of subjective health recognition on the quality of life is depended upon degree of family ontact. 3) The effect of eyesight on the quality of life is depended upon degree of satisfaction in social relation. The lower the degree of social support was, the bigger the influence of health related variables affecting quality of life became. This study explains that health status is a major factor in predicting the quality of life of the aged. Particularly the subjective health recognition was an important factor as the perception of quality of life.

• Journal of Information Science Theory and Practice
• /
• 제1권2호
• /
• pp.36-57
• /
• 2013

Blogs are readily available sources of opinions and sentiments which allows bloggers to exert a certain level of influence over the blog readers. Previous studies had attempted to analyze blog features to detect influence within the blogosphere, but had not studied in details influence at the blogger-level. Other studies studied bloggers' personalities with regards to their propensity to blog, but did not relate the personalities of bloggers to influence. Bloggers may differ in their way or manner of exerting influence. For example, bloggers could be active participants or just passive shares, or whether they express ideas in a rational or subjective manner, or they are received positively or negatively by the readers. In this paper, we further analyze the engagement style (frequency, scope, originality, and consistency of the blog postings), persuasion style (appeals to reasons or emotions), and persona (degree of compliance) of individual bloggers. Methods used include similarity analysis to detect the sharing-creating aspect of engagement style, subjectivity analysis to measure persuasion style, and sentiment analysis to identify persona style. While previous studies analyzed influence at blog site level, our model is shown to provide a fine-grained influence analysis that could further differentiate the bloggers' influence style in a blog site.

• 대한물리치료과학회지
• /
• 제16권3호
• /
• pp.1-9
• /
• 2009

Background: The purpose of this study is to have examined the influence on the blood circulation by comparing the differences between stimulating the sympathetic ganglion and the muscle group among the stimulation variables in interferential current stimulation. Method: The object of the study is the twenties(M=8, F=12), who are in great condition and have no pathological report for the blood circulation influence. The intensity of the inferential current stimulation is the medium degree, 100 bps constant current, which is the comfort and degree to confirm the muscle contraction. The areas stimulated are the stellate ganglion area in the seventh cervical vertebrae and the forearm muscle area. Results: We have made sure that there is no change in blood pressure and pulse and that the change in the skin temperature occurred highly. Conclusion: In considering the change of the blood circulation in case of stimulation area by the inferential current stimulation, we have seen that stimulating the sympathetic ganglion area is more effective than stimulating muscle area directly.

• 지식경영연구
• /
• 제19권2호
• /
• pp.21-45
• /
• 2018

With the widespread use of smartphones and the development of information technology, an online service called SNS(social network service) has emerged, and as an increasing number of people began to use SNS, extensive research has been conducted on SNS. SNS is an important factor for adolescents who are developing social skills that help them to adapt to the society, and for adults who are stepping into the society. The present study investigates the effects of information search, self-disclosure, interaction, and playfulness, all of which are motivational factors for SNS use, on flow in SNS, and empirically analyzes the degree of these variables influence according to flow in SNS and individual's personal nature(extrovert, introvert). The analysis results showed that information search, self-disclosure, interaction, and playfulness were positively correlated with flow in SNS, and flow in SNS was positively correlated with social skills. The degree of influence varied depending on the individual's personal nature(extrovert, introvert). These findings may provide important insights for researchers studying SNS, SNS managers, and company officials using SNS.