• Title/Summary/Keyword: 가설 유형

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R&D Investment and Project Performance : Research on Industrial R&D Programs of Government (연구개발투자의 성과에 영향을 미치는 요인에 관한 연구 : 정부의 산업기술개발사업을 중심으로)

  • Chang, Keum-Young
    • Journal of Technology Innovation
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    • v.18 no.1
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    • pp.75-98
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    • 2010
  • The purpose of this paper is to give policy implications for relevant policy-makers by analyzing factors affecting performance of industrial R&D programs of the Ministry of Knowledge Economy. The independent variables are type of project leader organization(Big Enterprises, SMEs, Ventures Businesses, Public Research Institutions, Universities), cooperative or noncooperative R&D among industry-university-research institution, total number of project participant organization, total R&D investment, and the ratio of private investment to total R&D investment. The dependent variables are domestic or foreign patents granted and domestic or foreign papers accepted. The method of analysis is Poisson Regression analysis operated by STATA. The results of this research are follows ; Universities show higher R&D performance compared to enterprises or public research institutions in terms of patents and papers as well. Venture businesses show higher patent performance compared to SMEs. Inverted U-shaped relationship between total number of project participant organization and R&D performance is not supported. The higher total R&D investment, the higher R&D performance. The higher the ratio of private investment to total R&D investment, the higher R&D performance.

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A Study on the Quantitative Risk Assessment of Bridge Construction Projects (교량 공사 프로젝트의 정량적 리스크 평가에 관한 연구)

  • Ahn, Sung-Jin
    • Journal of the Korea Institute of Building Construction
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    • v.20 no.1
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    • pp.83-91
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    • 2020
  • The recent bridge construction projects is demanded more sophisticated risk management measures and loss forecasts to brace for risk losses from an increase in the trend of bridge construction. This study aims to analyze the risk factors that caused the loss of material in actual bridge construction and to develop a quantified predictive loss model, based on the past record of insurance payment by major domestic insurance companies for bridge construction projects. For the development of quantitative bridge construction loss model, the dependent variable was selected as the loss ratio, i.e., the ratio of insurance payout divided by the total project cost, while the independent variable adopted 1) Technical factors: superstructure type, foundation type, construction method, and bridge length 2) Natural hazards: typhoon and flood 3) Project information: construction period and total project cost. Among the selected independent variables, superstructure type, construction method, and project period were shown to affect the ratio of bridge construction losses. The results of this study can provide government agencies, bridge construction design and construction and insurance companies with the quantitative damage prediction and risk assessment services, using risk indicators and loss prediction functions derived from the findings of this study and can be used as a guideline for future basic bridge risk assessment development research.

The Effects of Service Design Quality Factors and Availability on User Satisfaction (서비스디자인 품질요인과 유용성이 사용자만족에 미치는 영향)

  • Ahn, Jinho
    • Journal of Service Research and Studies
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    • v.5 no.2
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    • pp.133-147
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    • 2015
  • The purpose of this study was to suggest and prove that service design is not in the dimension of a simply new design methodology, but in the design paradigm change from conventional tangible and visual view of design to the intangible service of design. Based on a variety of literature research, this study defined service design, found its characteristics, and proved its differences from conventional design approaches and thoughts. To do that, this study looked into service design theories, processes, and methodologies, defined quality factor and availability of service design, and user satisfaction, and setup hypotheses to prove them. This study conducted a questionnaire survey with service design firms, service designers, and their customers. The questionnaire data were applied to structural equation to analyze the hypotheses. According to the analysis, reliability, tangibility, assurance, and empathy of the quality factors of service design were accepted, but responsiveness of the factors was rejected. It was found that quality factors positively influenced availability and ended up positively affecting user satisfaction. The quantitative research results will made some suggestions to service design firms and designers in the paradigm change to service-centric design, and will show the importance of understanding the essence of service in terms of design methodology.

Searching for Growth Engine: For the Firms Belonging to the Chaebol in the Korean Capital Markets (한국 재벌기업들의 성장 동력에 관한 재무적 결정요인 분석)

  • Kim, Hanjoon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.15 no.12
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    • pp.7134-7147
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    • 2014
  • This study examined one of the contemporary issues that may be interesting to academics and practitioners regarding the driving force of the growth rate for the firms belonging to the chaebols in the Korean capital markets. With respect to the empirical results obtained from two hypothesis tests, the first hypothesis was to identify any financial determinants on the growth rate by applying both dynamic panel data and static panel data models. The debt ratios relevant to the book- and market-value showed their positive relationships with the DV of GROWTH1, along with other significant IDVs such as one-period lagged DV of GROWTH_1, SIZE1 and FOS with statistical significance. Second, by employing conditional quantile regression (CQR) analysis, the control variables, such as ROA, SMARKET, time dummy variable of F2010 and F2011, and the industry dummies of IND3 and IND10, provided evidence of their significant influences on DV of GROWTH1.

The Impact of Leader's Communication Style on the Conflict and Job Attitude in Ship Organization (선박조직에서 리더의 커뮤니케이션 스타일이 갈등 및 직무태도에 미치는 영향)

  • Son, Jang-Yoon;Shin, Yong-John;Lee, Jeong-Kyung
    • Journal of Korea Port Economic Association
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    • v.30 no.3
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    • pp.59-87
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    • 2014
  • The purpose of this study is to examine the effect of two kinds of Master and Chief Engineer's communication style on group conflicts and members' attitude including job satisfaction and organizational commitment, and to analyze the moderating effect of the isolation from home and community on the relation between the both of communication styles and the several behavioral variables in ship organization. This empirical result demonstrates the fact that Master and Chief Engineer's direct communication with crew has lower conflict and higher job satisfaction and organizational commitment than their indirect one through Chief Officer and First Engineer. In addition, it illustrates the isolation from home only effects moderately on the relation between the communication style and group conflict, and also the direct communication style reduces more the conflict in the group to show less isolation from home. To conclude, this study reveals that job satisfaction and organization commitment could be heightened by proper communication style of Master and Chief Engineer and it would utilize the job performance of ship organization in the long-term.

Regional Characteristics Model to Explain Fire Damage Elements : Hypotheses and Verification (지역 유형별 화재 피해 특성변수 모델: 가설과 검증)

  • Kang, Byungki;Chang, Eunmi;Choi, Kapyong
    • Journal of the Korean association of regional geographers
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    • v.21 no.2
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    • pp.379-393
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    • 2015
  • The fire damage has been increased as the frequency of fire incidence decreases with increasing in death and economic loss. Local governments are dependent on the activities of fire-fighters with crude preparedness and prevention for fire incidence. Most of researches on fire safety have focused on descriptive statistics which show general trends in fire incidence and condition. Here we tried to make a mutual causal model for fire damage, to make three big hypotheses with laying three small hypotheses under each big hypothesis. Five years statistics from public domains in the form of hardcopy or softcopy were collected and fifteen independent variables were selected to explain the number of death, the number of fire incidence and the amount of economic loss from fire incidence. The significances of statistics are different among the regional characteristics. The hypotheses were partially rejected and the meanings of rejected factors will refresh the tentative prejudice. It is necessary to revise the principle that the number of population and size of area are regarded as the most important criteria to allocate resources for fire control and to have the criteria flexible with results of our research such as the number of the weak to fire disaster.

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The Effect of Service Quality of Hotel Drive through on Customer Satisfaction and Oncontinuous usage Intention -Focused on Moderating Role of the Hotel Brand image- (호텔 드라이브 스루 서비스품질이 고객만족, 지속이용의도에 미치는 영향 -호텔 브랜드이미지 조절효과 중심-)

  • Kim, Chan-Woo
    • The Journal of the Korea Contents Association
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    • v.21 no.6
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    • pp.513-523
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    • 2021
  • This study verified the effect of Hotel Drive through Service Quality between Customer Satisfaction and Oncontinuous usage Intention. In addition, by injecting the variable of the Hotel Brand Image between Hotel Drive through Service Quality and Customer Satisfaction, we tried to find out the effect of the Moderating Role. Convenience sampling was used for customers who recently experienced Hotel Drive through Service, which is operated mainly in Seoul. It has been held for about 40 days from December 2020. The survey tool constructed through prior research was distributed to customers who experienced Hotel Drive through Service in Seoul. 289 copies of the collected effective samples were statistically processed using SPSS 22.0. As a result of the analysis, it was found that hypothesis 1 and hypothesis 2 had a significant influence relationship. The Tangibility*Hotel Brand Image and physical environment*Hotel Brand Image in Hypothesis 3 were found to have a modulating effect with a significant positive (+) effect. However, it was found that Responsiveness*Hotel Brand Image and Reliability*Hotel Brand Image had no control effect.

The Subjectivity Study on 'The Corruption' of Our Society: Using the Q methodology of Hypothesis Abduction (우리사회 '부정부패'에 대한 주관성연구: 가설발견의 Q방법론을 활용하여)

  • Lee, Doh-Hee
    • The Journal of the Korea Contents Association
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    • v.22 no.9
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    • pp.19-28
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    • 2022
  • This study aimed at public officials who are most strongly demanded to tear up the corruption and diagnosed what they really think about 'the corruption'. So, a qualitative research method called 'subjectivity study' or 'Q methodology' was used to typing on the perception of corruption. In other words, 30 Q-samples related to corruption and P-samples composed of 30 public officials were investigated to derive the analysis results. As a result of the analysis, three types of perceptions of corruption were defined. That is, showed a high distribution of civil servants such as 'educational administration' and 'teacher', and and showed a high distribution of 'general administrative positions' civil servants. Also, among the respondents of , it was found that the distribution of 'high' was higher for the level of corruption in our society, and the distribution of 'medium' for and was found in the case of the respondents with high factor weight. The overall explanatory power was high at 62.11%, and based on the series of results, a hypothesis could be found that 'the perception of corruption differs according to the characteristics of the work of public officials'. By the results, the commonly recognized terms for 'corruption' were 'politician/politician' and 'solicitation'. Therefore, based on a series of results, this study is expected to be the 'Priming' for finding ways to move toward a more transparent society by diagnosing and reflecting on the thoughts of corruption in our society once again.

Exploring Scientific Argumentation from Teacher-Student Interaction with Epistemological and Psychological Perspectives (교사-학생 상호작용간의 과학논증 탐색: 인식론 및 심리학적 관점으로)

  • Park, Young-Shin
    • Journal of the Korean earth science society
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    • v.31 no.1
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    • pp.106-117
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    • 2010
  • The purpose of this study was to explore students' argumentation in perspectives of epistemology and psychology and to find out how teacher can promote students' abilities of developing argumentation. The 60 hours of lessons from the interaction between one science teacher (Mr. Physics, who had 35 years of teaching experience) and his 26 students were observed, transcribed, and analyzed using two different analyzing tools; one is from the perspective of epistemology and the other from the perspective of psychology, which can portray how argumentation is constructed. Mr. Physics created the environment where students could promote the quality of scientific argumentation through explicit teaching strategy, Claim-Evidence Approach. The low level of argumentation was portrayed through examples from students' prior knowledge or experience in the form of an Appeal to the instance operation and the Elaboration reasoning skill. Students' own claims were developed through application of knowledge in a different context in the form of an Induction operation and Generativity reasoning skill. Higher level of argumentation was portrayed through Consistency operation with other knowledge or experience and Explanation reasoning skills based on students' ideas with more active teacher's inputs. The teacher in this study played a role as a helper for students to enact identities as competent "sense makers," as an elaborator rather than evaluator to extend students' ideas, and as a mentor to foster and monitor the students' development of ideas of a higher quality. It is critical for teachers to understand the nature of argumentation, which in turn is connected to their explicit teaching strategy with the aim of providing opportunities where students can understand the science enterprise.

Estimation Method of Waste Amount from Materials to Develop Generation Rates of Construction Waste in New Apartment Construction Sites: Focused on Bill of Quantities for Architectural Works (신축아파트 현장의 건설폐기물 발생원단위 개발을 위한 자재별 폐기물 수량 예측 방법: 건축공사 내역서의 투입 물량을 중심으로)

  • Jung, Jong-Suk;Song, Sang-Hoon;Park, Seong-Sik;Lee, Seok-Je
    • Land and Housing Review
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    • v.5 no.1
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    • pp.41-51
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    • 2014
  • The amount of new apartment construction has been trending upward in 3~4% each year since 11% increase in 2002. Currently, in public apartment construction sites under separate delivery system for construction waste processing, the significant difference between estimated quantity for contract and actual amount frequently causes severe controversy among project participants. Many factors such as poor environmental management, inadequate contractual amount are assumed to influence the above problem, and the requirement to revise existing generation rates, the key criteria applied in estimating the quantities of waste, is increasing. Most of generation rates were established in early 2000's, and have difficulty in reflecting the changes from new materials and technologies accordingly. Therefore, this study aims to clarify the types of construction waste for each trade and the forecast method as preliminary work in order to develop more accurate generation rates for construction waste in new construction. To achieve this purpose, the architectural bills of quantities in ten apartment projects executed during 2010~2013 were collected, and the possible waste types and reasonable material loss ratio for each item from temporary works to owner-supplying material area were defined and compared through the workshops and interviews with the experts and on-site environmental managers. The results of this study will contribute to establishing the categories of construction waste for construction trades and proper generation rates by the indirect estimation method in new apartment construction in the follow-up study.