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        검색결과 1,728

        1401.
        2017.04 서비스 종료(열람 제한)
        Robotics-Assisted Bridge Inpection Tool (RABITTM) combines a capability of conventional non-destructive evaluation techniques for condition assessment of concrete bridge decks, including electrical resistivity (ER), ground-penetrating radar (GPR), impact-echo (IE), ultrasonic surface waves (USW), and a high resolution digital camera. In this study, the RABITTM platform was used to evaluate delaminaitons in a concrete bridge deck fabricated in the laboratory.
        1402.
        2017.03 KCI 등재 서비스 종료(열람 제한)
        Purpose - The main purpose of the current study is to examine the impact of accounting information quality and information asymmetry on the underinvestment phenomenon among the listed companies on the Tehran Stock Exchange (TSE). Research design, data, and methodology - The population includes 94 firms selected through systematic sampling. The data is collected from the audited financial statements of the firms provided by TSE’s website from 2010 to 2015. Accounting information quality and information asymmetry is considered as independent variables, and their impact is examined on the dependent variable (underinvestment). Results - The statistical results, based on data collected from 94 listed companies on the TSE during 2010–2015, revealed positive impact of accounting information quality and positive impact of information asymmetry on underinvestment. There was a significant relationship between accrual quality (AQ) and underinvestment, and spread and underinvestment. The results also showed that information asymmetry is the main factor in the creation underinvestment. Conclusions - Findings of this article can assist accounting researchers and theoreticians in comparing Real world facts with hypotheses developed with respect to accounting information quality, information asymmetry and underinvestment. However, the results of fuzzy regression analysis indicate significant relationships between the independent variable except underinvestment.
        1403.
        2017.03 KCI 등재 서비스 종료(열람 제한)
        Purpose – Market orientation is a key factor for business performance in today’s fluctuating conditions. This study investigates whether the employment of innovation can improve the innovative capability and increase the performance by gaining competitive advantages or not. Therefore, this study aims to investigate the effects of market orientation on the performance of small and medium size distributer enterprises (SMDEs) in Iran. Research design, data, and methodology – Customer orientation, Competitor orientation, and Inter-functional coordination have been regarded as market orientation indices to determine the effects of these indices on marketing innovation, gaining competitive advantages, and companies’ performance as well. Data were collected from managers and experts in SMDEs in Iran. The structural equations modeling are used for analysis. Results – The results indicated that marketing innovation has been improved in competitive companies that enjoyed a high level of Inter-functional coordination among the various units. Besides, marketing innovation resulted in gaining competitive advantages regarding cost management, concentration, and differentiation in these companies. In addition, it was observed that SMDEs that obtain competitive advantages are equipped to reap superior performance. Conclusions – With cost management, differentiation and concentration are more likely to enhance the enterprise efficiency and effectiveness than other companies. Additionally, competitiveness, inter-functional coordination, and marketing innovation in SMDEs have a positive impact on marketing innovation.
        1404.
        2017.03 KCI 등재 서비스 종료(열람 제한)
        Environmental Impact Assessment (EIA) is an important policy implemented before starting development projects to estimate and reduce environmental impact. However, the difficulty of quantification on several rating categories has hampered comprehensive analysis. Instead of it, the current EIA just summarizes outcome of investigation. Therefore, EIA fails to definitively ascertain whether the development shold be approved or not. This study aimed at providing the way to comprehensive decision-making by applying Emergy analysis and Emergy indicators to EIA. Production (P), Emergy Yield Ratio (EYR), Environmental Loading Ratio (ELR) and Emergy Sustainability Index (ESI) were selected for indicators. The indicators of range approving the development were set up with comparing before and after development or according to circumstances of which view of average that was classified as region or industry is appropriate to analysis. As a result, the value after development of P should be higher than the value before development. EYR and ESI of the value before development should be higher than region or industry average. On the contrary to these, ELR of the value after development should be lower than region or industry average. To verify applying Emergy indicators to EIA comprehensive analysis, Emergy evaluation was conducted to real case. As a result, applying Emergy analysis could suggest whether the development is appropriate or not. These indices and the result of this research are expected to be applied decision-making on environmental impact for sustainable development.
        1405.
        2017.02 KCI 등재 서비스 종료(열람 제한)
        For areas with the diverse contamination sources, the change of 4-nitrophenol contamination and impact of potential contamination sources have been evaluated using monitoring data and a numerical model (HydroGeoSphere). The model considered several parameters including land cover, precipitation, and flow rate. And, the model has been performed to investigate the effect of decay rate of 4-nitrophenol. The results of the simulations showed that the influence on 4-nitrophenol in downstream was mainly greater than that in upstream, and the tributaries did not significantly affect the mainstream because of their low flow rates. In addition, the effect of contamination sources was simulated for each section, then the measured data were higher than the corresponding simulated data in most sections of the Geumho river. In particular, the impact of the potential contamination sources in the upstream area was much higher than that in the other area, thus more monitoring data for the upstream area is required.
        1406.
        2017.02 서비스 종료(열람 제한)
        중국 2014년 전체 해외직접투자액이 1231.1 억 달러로 미국과 홍콩에 이어서 세계 3위를 기록하였 다. 앞으로 중국의 해외직접투자는 장기적인 성장세를 이어갈 것으로 예상되며 해외자본스톡 규모가 확대됨에 따라 중국의 국제무역에 미치는 효과도 함께 커질 것으로 전망된다. 따라서 본 연구는 중국 해외직접투자가 중국 무역에 미치는 효과를 살펴보기 위해 실증적으로 분석하였다. 분석결과는 해외 직접투자는 수출과 수입을 모두 증대시키는 것으로 드러났다. 즉 중국의 해외직접투자 금액이 1% 증 가할 때 수출은 0.085%, 수입은 0.028% 증가하는 것으로 나타났다. 이는 중국 기업들은 현지시장 진 출을 목적으로 현지국에 투자할 때 국내에서 중간재나 부품을 조달하여 현지에서 완제품을 생산하므 로 국내 수출이 해외투자와 보완관계에 있지만 생산 이후 현지시장에 판매하므로 국내로의 역수입에 대한 영향이도 존재하는데 이 수입효과가 수출효과보다 크지 않는 것을 판단할 수 있다. 즉 전체적으 로 보면 중국 해외직접투자가 무역수지를 개선할 수 있다는 것을 알 수 있다. 한편, 지역별 분석결과 를 살펴보면 동부와 중서부지역에서도 무역개선효과가 존재하는데 동부지역의 수출/수입에 보완효과 가 중서부보다 비교적 현조하다는 것을 알 수 있다.
        1407.
        2017.01 KCI 등재 서비스 종료(열람 제한)
        This research developed the fiber pullout impact test machine to investigate interfacial bond strength between fiber and cement based matrix under high velocity. To achieve the goal, firstly the existing pullout test machines were investigated. And then, these drawback were comprehended. Finally, Fiber pullout impact test machine base on strain energy frame impact machine was proposed.
        1408.
        2017.01 KCI 등재 서비스 종료(열람 제한)
        This study was evaluated dynamic impact fracture behaviour of 80 MPa sprayed HPFRCC by Gas-gun test as a part of the research for development of sprayed HPFRCC for protection and blast resistant of existing structures.
        1409.
        2016.12 KCI 등재 서비스 종료(열람 제한)
        It is important to understand consumer attitudes associated with their eco-friendly behavior on account of not only environmental reasons, but also corporate aspects. In this study, we examine the relations between variables influencing eco-friendly attitudes and eco-friendly behavioral intentions, namely, recycling, reusing, and reducing (3R). We first, performed a theoretical consideration through reviews of literature on ethical identity, ethical obligation, altruism, and eco-friendly attitudes, and behavioral intentions. Based on the literature review, we designed a study model and drew hypotheses. Further, we collected data using a survey and processed them statistically in order to verify the hypotheses. A total of 265 samples were collected and the data were analyzed using a structural equation model (-LISREL 8.70). The results suggest that ethical identity and altruism significantly influence environmental attitudes. However, the effects of ethical obligations on eco-friendly attitudes are insignificant. The environmental attitudes have a significant effects on the consumer behavioral intention for recycling, reusing, and reducing. Although this study has some limitations, it is expected that it will positively trigger follow-up research.
        1410.
        2016.12 KCI 등재 서비스 종료(열람 제한)
        본 연구는 한국과 싱가포르, 인도, 미국의 자유무역협정(FTA) 발효로 인한 양자간 교역증진효과를 통계적으로 비교 분석하고자 한다. 다수의 선행연구에서 양자간 교역 증대효과 추정시 활용된 중력모형(Gravity)을 기본 방법론으로 패널분석(Panel analysis)을 통해 한 국과 FTA 발효국(싱가포르, 인도, 미국)을 효과집단으로, 미발효국은 통제집단으로 구분하여 총 20년의 기간을 설정하여 FTA 발효의 순수효 과를 추정하였다. 자유무역협정의 교역증대효과 분석을 위해 우리나라와 FTA가 발효된 3개 국가(효과집단)와 2015년 기준 우리나라 벌크물 동량 교역 상위 90%의 비중을 차지하는 27개 국가(통제집단)의 횡단면 및 시계열로 구성된 패널자료를 사용하였다. 분석 결과 FTA 발효는 우리나라 벌크물동량 증대에 기여한 것으로 나타났다. 특히 본 연구의 대상국가인 싱가포르, 인도, 미국과는 자유무역협정 발효로 인한 무역 창출효과가 발생하였고 ASEAN 및 NAFTA+3의 경우 무역전환효과가 발생하였다. 한편 자유무역협정 이외의 GDP, 1인당 GDP 변수는 벌크 물동량과 정(正)의 효과를 보이는 것으로 나타났으며, 거리 변수는 물동량과 부(負)의 효과를 보이는 것으로 분석되었다. 마지막으로 국가별 패널자료 분석 결과 하우스만 검정 및 LR검정을 시행하였으며, 고정효과모형이 임의효과모형보다 적합한 것으로 나타났다.
        1411.
        2016.12 KCI 등재 서비스 종료(열람 제한)
        국제 교역에 있어서 항만은 중심 거점기능을 수행하지만 FTA가 해상물동량과 항만물동량에 미치는 영향을 실증적으로 분석한 연 구는 드물다. 해운항만 분야의 경우 물동량은 항만시설 확충, 항만처리능력 산정 및 선박확충, 항로추가로 인한 선대구성의 중요한 자료임에도 불구하고 선행연구에서 실증분석이 대부분 교역금액 기준으로 이루어져 왔다. 향후 체결될 FTA의 경제적 기대효과 분석도 중요하지만, 현재 체결된 FTA의 효과를 파악하는 것도 실증적으로 의미가 크다. 따라서 본 연구에서는 2010년 체결된 한-인도 FTA를 대상으로 하여 FTA가 한국 물동량에 미치는 영향을 FTA의 경제적 파급효과를 파악하는데 네트워크 모형을 적용하여 실증 분석하였다.
        1412.
        2016.12 KCI 등재 서비스 종료(열람 제한)
        Purpose - The purpose of this study is to discuss problems and propose the direction of the current international university placement program in the country by deriving the concept of and developing questionnaires for 'service satisfaction'. Research design, data, and methodology –The SERVQUAL scale was used to measure the quality of services. In this study reliability, empathy, and assurance are used to measure the quality of the international university placement system, considering the characteristics of the education environment. The survey data is based on responses from 280 students who either have completed the international university placement system and currently studying abroad, or are studying the domestic part of the program. Cronbach's Alpha value was calculated. To verify the hypothesis, the multiple regression analysis was conducted. Results - According to the study, the satisfaction rate of the domestic learning process is heavily relied on reliability and empathy; particularly empathy on the curriculum of the international placement program. The study also found that to make students to feel a high sense of achievement, the satisfaction rate is a priority which should be improved. Conclusions - The results from the analysis of the hypothesis shows that the satisfaction rate of students who are taking the domestic part of the international university placement program should be increased.
        1413.
        2016.11 KCI 등재 SCOPUS 서비스 종료(열람 제한)
        The core purpose of the paper is to explore perceptual displays of rural India towards the role and impact of ICT in transforming the lives through education and telecommunications. After meticulous review of pertinent literature on ICT, and its policy framework, the researcher administers both quantitative and qualitative field data collected from the villages of Andhra Pradesh, Karnataka, Kerala, and Tamil Nadu with a sample of 250 from each state. More than 90 percent of respondents from the four southern states in India clearly thought that the role and impact of ICT is very momentous. Predominantly, cent percent respondents from Kerala evinced that ICT is the major reason for achieving the tag of “100% Literacy State”. And also in the remaining three states viz., Andhra Pradesh, Karnataka, and Tamil Nadu, the literacy rate has crossed mind-boggling figures only because of ICT’s reinforcement. Even in the arena of telecommunications, these four states average telecom density is more than the country’s average. The paper concentrated only on how ICT function empirically to build human capacity in rural south-India through the sectors of only education and telecom. This study is first of its kind and precious to all stakeholders of the ICT sector like educational institutional, telecom firms, customers, employees, and governments, etc.
        1414.
        2016.11 KCI 등재 SCOPUS 서비스 종료(열람 제한)
        The research aims to help merchant acquiring institutions gain a better insight on what merchant establishments in the Singapore market perceive of the costs they incur due to credit card acceptance. The research attempts to study the Singapore market and establish if increased credit card usage does increase costs for the merchant establishments that accept credit cards, this will help to acquire institutions in Singapore have a better understanding of merchant perceptions and what drives or deters credit card acceptance in the Singapore market. The survey was based on an interview of merchant establishments and the views of the merchants and was not based on their financial data. As a first step, the variables used in the survey were tested for interdependence using Chi-square tests; subsequently data reduction using factor analysis was performed and finally linear regression to establish a relation between dependent and independent variables. Merchant establishment believe accepting credit cards and increasing volume is costlier compared to another form of payment, but have mixed awareness about interchange fee. It also indicated that interchange fee and cardholder benefits are independent of the merchant establishments. The study only broadly attempts to gauge merchants view if increased credit card usage has increased costs for them.
        1415.
        2016.11 KCI 등재 서비스 종료(열람 제한)
        본 연구에서는 반구형과 평탄형의 비상체를 이용하여 일반콘크리트와 섬유보강콘크리트에 충격시험을 진행한 후 파괴깊이와 형 태, 파괴직경, 배면의 인장변형을 평가하였다. 선단면적이 작을수록 충격력의 집중에 의해 파괴깊이는 크고 표면파괴 직경은 작게 되는 것으로 확인되었다. 반면에 선단면적이 클수록 파괴깊이는 작지만 표면파괴직경은 크게 되었다. 일반콘크리트와 섬유보강 콘크리트에서 유사한 표 면파괴와 배면변형이 발생하였으나 인장변형의 크기는 일반콘크리트에 비해 섬유보강 콘크리트가 작은 것으로 나타났다. 또한, 비상체의 선 단형상에 따른 표면관입의 형태와 배면의 인장변형 사이에 직접적인 연관이 있는 것으로 사료된다. 따라서 콘크리트의 배면박리한계두께 예 측 시에는 표면관입깊이뿐만 아니라 배면의 변형거동 또한 고려할 필요성이 있을 것으로 사료된다.
        1416.
        2016.10 서비스 종료(열람 제한)
        Impact Severity is important parameter to design concrete barrier in South Korea. However, maximum load and load-time history graph showed different depending on parameters under vehicle impact loading. Therefore, in this study, analysis according was conducted to various impact conditions such as vehicle mass and impact velocity under same impact severity. Obtained results from load-time history graph showed key parameter is velocity compared to vehicle mass.
        1417.
        2016.10 서비스 종료(열람 제한)
        In this study, We evaluated the impact resistance of structural member using high performance fiber reinforced cementitous composite according to compressive strength. As the compressive strength of structural member using HPFRCC increased, the deflection of the structural member decreased. The highest resistance of deflection occurred at 180 MPa HPFRCC.
        1419.
        2016.09 KCI 등재 서비스 종료(열람 제한)
        Purpose - Usage of E-services is critical for businesses to maximize work efficiency and gain competitive advantage. The aim of the study is to explore how awareness of technology and e-services usage in an emerging economy in Pakistan. The studies aimed to explore as to what extent these factors can potentially motivate transport employees towards e-services; who are generally not aware about technology and hence also not confident in using it also. Research design, data, and methodology - Employees from the three transport subsidiary units from a large private company in Pakistan were sampled for the study. Through using self-administered technique, the questionnaires were distributed during the month of April, 2016 to 189 employees. A total of 150 responses were taken further for analysis where the study found a positive link between awareness of technology and e-services usage. Results - This study found positive relationship between intention to use and e-service usage among the employees of three subsidiary units. The paper has reported 30 percent variance explained by the predicting variables in relation with e-services usage. Conclusions - Employees could be motivated to use e-services and latest technology through enhancing their awareness about their respective importance and viability. Accordingly, organizations can foster employees’ intentions to use to enhance e-service usage.
        1420.
        2016.09 KCI 등재 서비스 종료(열람 제한)
        Aerosols play the important role as scatter or absorb solar radiation, which consequently modies the radiative balance of the atmosphere. Aerosol and its eects, especially its indirect eects, on climate have drawn increasing attention in recent years. Understanding of interactions of aerosols and climate is important to better prediction of future climate change. In this study, the direct and indirect effect of fossil fuel organic carbon aerosol (OC) and its impacts on the climate during the period of the early of 20th century (1901~1920) and the end of 20th century (1986~2005) were investigated. we examine changes in aerosol emission during 20th century. Using HadGEM2-AO (Hadley Centre Global Environmental Model version 2, Atmosphere and Ocean), historical experiments are carried out with and without anthropogenic aerosol emissions (HIST, FIXA) from 1860 to 2005. Fossil fuel organic carbon aerosol (OCFF) emission xed at 1860 is added. Due to the large emission of OC, thick optical depth of the OC appears over Asia, western Europe and eastern north America. e direct eect due to increasing OC influences negative radiative effect at the surface, which leads to a cooling effect on the surface. The OC shows direct eect and indirect eect as well. e variation of total amount of clouds are aected by the OC aerosols emission.