• Journal of the Korean Institute of Electrical and Electronic Material Engineers
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• v.18 no.4
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• pp.338-343
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• 2005

Pb(Zr,Ti)O₃[PZT] thin films were prepared on a highly (100) oriented LaNiO₃[LNO] and a randomly oriented LNO by sol-gel process. The PZT thin films on a highly (100) oriented LNO show a high (100) crystal orientation (F=100 ％), those on a randomly oriented LNO show a random crystal orientation (F=60 ％). All the PZT layer have a flat and dense microstructure with large columnar grains and their grain size are 25 nm. In the ferroelectric curves at electric field of 40 kV/cm, a highly (100) oriented PZT/LNO samples show coercive field, E/sub c/=10 kV/cm and remanent polarization, P/sub r/=14.5 μC/㎠, while a randomly oriented PZT/LNO sample show E/sub c/=10 kV/cm and P/sub r/=5.4 μC/㎠.

• The Journal of Economics, Marketing and Management
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• v.7 no.3
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• pp.13-28
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• 2019

Purpose - The purpose of this study is to analyze the start-up factors in start-up tourism companies and to analyze how these factors influence business performance. This study will be conducted for the further exploratory study with in-depth research with literature reviews, interviews and surveys. Research design, data, and Methodology - The activation of entrepreneurship is very important factor as for not only the development of entrepreneurship which is the characteristic of the innovative and risks-taking for the success of the enterprise, but also the sustainable growth and creation of performance of the entrepreneur. In other words, if it is the entrepreneurial spirit affects entrepreneurship, it is entrepreneurial orientation that continuously affects entrepreneurs. In order to achieve the above purposes, this study conducted literature research and empirical studies. Result & Conclusions - The sub-factors for independent entrepreneurial variables' orientation are classified as creativity, technological, enterprising, and innovation, and subordinate variables were set of management performance. The sub-factors of the control variable government support policy are classified as financial support, consulting support, and marketing support. For the purpose of empirical analysis, this paper collects data on companies selected for tourism venture business competition and CEOs of SMEs tourism for less than 7 years.

• Journal of Ocean Engineering and Technology
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• v.13 no.2 s.32
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• pp.58-65
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• 1999

The effect of specimen thickness on fatigue crack growth rate was studied. The objective of the present study is to investigate the effect of specimen thickness on the fatigue crack growth behavior at various stress intensity factor ranges and also the variation of material restance to fatigue crack growth. The fatigue crack growth resistance was treated as a spatial stochastic process, which varies randomly on the crack path, Compact tension specimens with a LT orientation for structural steel were used. All testing was done at a constant stress intensity level. The experimental data were analyzed for the size effect to determine the Weibull distributions of the material resistance.

• Journal of Ocean Engineering and Technology
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• v.14 no.2
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• pp.99-105
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• 2000

This paper describes the effect of specimen size on fatigue crack growth rate for the offshore structural high-tensile-strength steel BS4360 and machine structural steel SM45C. The purpose of the present study is to investigate the effect of stress ratio aspect ratio specimen width and specimen thickness of the fatigue crack growth behavior. Compact tension specimens with a LT orientation for BS4360 and SM45C steels were used, All testing was done at constant stress intensity factor range controlled fatigue crack growth condition. The investigation demonstrates that the fatigue crack growth rate is increased with increasing stress ratio and specimen thickness and is decreased with increasing specimen width. The fatigue crack growth rate is unaffected by aspect ratio until a/W=0.50 but is increased by increasing spect ratio from a/W=0.55.

• Journal of Korea Entertainment Industry Association
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• v.13 no.7
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• pp.295-306
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• 2019

The purpose of this study was to Happiness Sharing Kumdo Class Participating Adolescents' achievement goal orientation on ego-resiliency and quality of life and to provide guidance measures for the correct growth of vulnerable participants through the happiness sharing Kumdo class, which will be activated as a sports support program. To achieve the purpose of this research, 236 Adolescent participating in the Happiness Sharing Kumdo Class was selected and surveyed in Seoul, Gyeonggi Province and Incheon. Based on the data collected, the following results were derived by conducting frequency analysis, exploratory factor analysis, reliability analysis, correlation analysis, and multiple regression analysis. First, verification of the effect of achievement goal orientation of Adolescent participating in Happiness Sharing Kumdo Class on ego-resiliency showed that task-orientation has significant influence on diversity, future-orientation, and emotion control, and ego-orientation has significant influence on diversity and emotion control. Second, verification of the effect of achievement goal orientation of Adolescent participating in Happiness Sharing Kumdo Class on quality of life showed that task-orientation has significant influence on quality of physical, psychological, social, environmental and educational quality, and ego-orientation has a significant influence on quality of physical and environmental quality. Third, verification of the effect of ego-resiliency on quality of life by Adolescent participating in Happiness Sharing Kumdo Class showed that diversity has not significant influence all factors of quality of life, but future-orientation has significant influence on quality of psychological and environmental quality, and emotion control has a significant influence on quality of physical, psychological, social and educational quality.

• The Journal of the Korea Contents Association
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• v.9 no.8
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• pp.333-340
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• 2009

The study aims to look into relations between internet portal images and long-term orientation for continuing growth in the internet portal market with intensifying competition. In detail, the study aimed to identify the effect of the Internet portal image on long-term orientation and the relationship between satisfaction and the intention to recommend. As a result of an empirical analysis, the attribute of the image evaluation of the Internet portal sites was deduced to be a factor which included the affordances of information, entertainment and additional services, customer services, and convenience. All the four areas were found to significantly affect long-term orientation. Specifically, the affordances of information and entertainment and additional services were shown to be the most influential. In addition, the finding turned out that long-term orientation affected significantly consumer satisfaction and recommendation intention, and the satisfaction of relative portal had a significant effect on recommendation intention. These research results are supposed to be useful basic data for establishing competitive strategies of differentiated Internet portals in the market.

• Proceedings of the Korea Association of Crystal Growth Conference
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• 1997.06a
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• pp.247-251
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• 1997

GaN films were grown on three differently oriented sapphire substates; (0001), (11-20), and (1-20). GaN films on the (0001) and (11-20) substates have a haxagonal structure and their growth rate was 0.6 $\mu\textrm{m}$/hr in both case. The film on the (1-102) substrate was too thin to identify its crystalline state. Growth rate was about the half of the others. Substrate orientation is one of the factor determining growth rate. The adhesion between GaN film and alumina substrate seems to be very good judging from the fractography.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2003.05a
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• pp.88-92
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• 2003

In this paper, the characteristics of the ZnO films deposited on AI bottom electrode and the temperature effects on the ZnO film growth are presented along with the fabrication and their evaluation of the film bulk acoustic wave resonator (FBAR) devices. All the films used in this work were deposited using a radio-frequency (RF) magnetron sputtering technique. Growth characteristics of the ZnO films are shown to have a strong dependence on the deposition temperatures ranged from room temperature to 35$0^{\circ}C$ regardless of the RF power applied for sputtering the ZnO target. In addition, according to the growth characteristics of the distinguishably different micro-crystal structures and the degree of the c-axis preferred orientation, the deposition temperatures can be divided into 3 temperature regions and 2 critical temperatures in-between. Overall, the ZnO films deposited at/below 20$0^{\circ}C$ are seen to have columnar grains with a highly preferred c-axis orientation where the full width at half maximum (FWHM) of X-ray diffraction rocking curve is 14$^{\circ}$. Based on the experimental findings, several FBAR devices were fabricated and measured. As a result, the FBAR devices show return loss of ~19.5dB at resonant frequency of ~2.05GHz.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2003.07b
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• pp.896-899
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• 2003

Using hi plasma and Fe-Phthalocyanine, carbon nanofibers have been synthesized a low temperature. The carbon nanofibers had about In nm diameter and up to $10{\mu}m$ length. These were grown in random orientation. There are two shapes in the CNFs, screw and straight line shapes. Furthermore, we found the selective growth of nanofibers on the scratched substrates.

• Journal of the Korean Ceramic Society
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• v.35 no.2
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• pp.145-150
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• 1998

ZnGa2O4 thin film phosphors were deposited on Si(100) (111) wafers by rf magnetron sputtering. The ef-fects of substrates and deposition parameters on the growing mechanisms were studied. As a results of the effect of substrate temperature tranistions of growth orientation and different growing behaviors were ob-served. Also polycrystalline ZnGa2O4 thin film could not be achieved without oxygen gas. PL spectrum of ZnGa2O4 thin films were analyzed and showed broad band luminescence spectrum.