• Proceedings of the KSME Conference
• /
• 2001.06a
• /
• pp.250-255
• /
• 2001

It is inevitable to evaluate the life of turbine rotor because the operating periods of power plants need to be extended. The magnetic methods utilizing Magnetic Barkhausen noise curve were applied to detect the degradation caused by thermal aging. The Magnetic property of material depends on the domain dynamics and it is affected by the microstructure of material. Therefore the magnetic property is very sensitive to the microstructure change of the material. It is, thus, very useful to detect the state of degradation of varying materials. The test specimen made of 1Cr-1Mo-0.25V steel was used widely for turbine rotor material, and seven kinds of specimens with different degradation levels were prepared by the isothermal heat treatment at $630^{\circ}C$. With the increase of degradation, BHN was decreased. The result was compared with coercive force and vickers hardness.

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
• /
• v.11 no.5
• /
• pp.413-417
• /
• 1998

In this paper, we investigate frequency dependance of inductance of FeCoB amorphous magnetic films. $(Fe_{1-x}Co_x)_{79}Si_2B_{19}$ was used as the basic composition of amorphous magnetic film having near zero magnetostriction. The amorphous magnetic films were fabricated with x=0.94 and x=0.95 by using sputtering method at high frequency. The films were anneald under non-magnetic field and near crystallization temperatures(30min at $280^{\circ}C$, 30min and 1hr at $400^{\circ}C$, respectively). As the results of the experiments with the fabricated films, the lowest coercive force was 0.084[Oe] at 400[W] of the input power and the crystallization temperature was $360^{\circ}C$ . In the case 30min at 40$0^{\circ}C$ the inductance value in the low frequency with x=0.95 was higher by 488% than that with x=0.94. The quality factor Q was below 0.7 for all samples. We obtained the highest quality value at 400[KHz] with 30min at $280^{\circ}C$ and x=0.94. The value was about 0.62. Also, the quality factor value was about 0.35 at 1[MHz] with 30min at $280^{\circ}C$ and x=0.95.

• The Journal of Industrial Distribution & Business
• /
• v.5 no.1
• /
• pp.11-15
• /
• 2014

Purpose - The core objective of this study is to comprehend the diverse nature of implementation of sources of power in the Indian context. Research design, data, and methodology - After a meticulous review of the relevant literature on various types of power with a particular kind of managers'involvement, the article reviews the Indian managers' behavioral perception and attitudinal disposition while exercising power in their organization, along with a judicious blend of different kinds of power to drive the organization to the expected level. Results - As an input to a full-fledged research study, researchers had taken up this precise discussion and observation on how the managers' community in India exercises its power. Generally, Indian managers usually implement legitimate power besides reward and coercive power as per the situation, by extending copious benefits to different stakeholders. Based on the psychological and behavioral disposition, Indian managers exercised power in their respective organizations in a fruitful manner. Conclusions -This article has carefully covered the entire corporate sector regardless of magnitude, type, or ownership. It is quite beneficial to all the proactive researchers and academia along with the corporate world.

• Asia pacific journal of information systems
• /
• v.11 no.3
• /
• pp.105-126
• /
• 2001

The objective of research is to find out exogenous variables that influence the usage and performance EDI in the Korea firms. Specifically the goals of this research are; (1) to examine relationships between exogenous variables, such as management, technology, inter-firm relationship characteristics, and EDI performance, and (2) to measure EDI volume, EDI diversity, EDI depth among Korea firms. The questionnaire consists of two versions; One for the EDI system managers and the other for the EDI users. The analysis of this study is designed as cross level to examine the causal relationship among variables in different analysis level. The reliability and validity of data was tested by explanatory factor analysis, Cronbach's alpha coefficient, confirmatory factor analysis, and correlation analysis. Also, the structural equation model(SEM) analysis was performed to test the usefulness of the model. The analysis results revealed that education level, IS growth, trust, support, power are major influential variables on the usage level and performance of EDI. Especially, persuasive power turned out to be more important than coercive power, and technical financial support from organizations was also found to be a significant variables.

• The Journal of Information Systems
• /
• v.23 no.2
• /
• pp.1-23
• /
• 2014

Companies are required to have adequate understanding and awareness of a partner company within the supply chain, together with the understanding of the imbalance consequent on power types. Therefore, this study intends to look into the power types and make clear their influence on confidence & commitment and causal relationship that is linked to SCM user satisfaction. The concrete research results are as follows. First, the result showed that none of the behavioral coercive, high-handed reward, and relative legitimacy in terms of Mediated power had a significant influence on confidence and commitment. Like this, the result explains that there is a limit to forcibleness power in forming a continuous, long-term relationship. Second, business expertise, professional information and value reference in terms of Non-Mediated power were all found to have a significant influence on confidence and commitment. This could be judged as having an intention of aggressively accepting a partner company's expertise, information strength and imitable culture, etc. Third, both confidence and commitment was found to have a significant influence on SCM user satisfaction.

• Journal of Contemporary Eastern Asia
• /
• v.17 no.1
• /
• pp.5-26
• /
• 2018

Joseph S. Nye defined soft power as the power of attraction to affect the behavior of other states through the use of non-coercive instruments including culture, political values and foreign policy. Over the last two decades, environmental issues have grown in importance on the international agenda and become critical components of states' foreign policy-making. This paper aims to analyze environmental foreign policy as a soft power instrument focusing on two major rising powers: China and India. Traditionally, China and India had been reluctant to make any commitments in the field. However, they have shown greater willingness to act in global environmental governance in the past decade. They started playing more active roles in global climate change negotiations and supported a number of initiatives. Their current rise in global environmental governance has even been praised by the international community as the Paris agreement case demonstrated. This study evaluates China's and India's recent efforts in global environmental governance with a focus on climate change negotiations linking their constructive position to their soft power potential. It is argued that environmental issues are used by these two states as foreign policy strategy to gain more influence in international politics. This study finds out that China's climate-related environmental diplomacy has been more ambitious than that of India and thus has been closer to fulfill its potential as a soft power asset.

• Proceedings of the Korean DIstribution Association Conference
• /
• 2006.08a
• /
• pp.47-68
• /
• 2006

This study aims to determine the association structure of the behavioral relationship variables, such as trust, commitment, cooperation, communication and coercive power, in the relationship between the buyers and suppliers of industrial parts. It also investigates the impact of the use of IT technologies on the relationships quality. Data was collected from 216 part suppliers of machinery, electronics and automobiles located in Incheon. Data supported all of the proposed hypotheses. First, it was confirmed that parts suppliers' trust in buyers leads to the commitment into relationships with buyers. Second, cooperation and communication showed a positive influence on parts suppliers' trust in buyers, and coercive power gave a negative influence on trust. Third, the use of IT technologies like Internet and E-Mail between parts suppliers and buyers was verified to have generally a positive influence on the quality of relationships. At the same time, cooperation and communication were confirmed to have a positive influence on each other, and cooperation and coercive power as well as communication and coercive power were confirmed to have negative influence on each other. This study is a pioneering attempt to examine the relationships between suppliers and buyers of industrial parts, and the influence IT technologies on the relationship quality. Also, the findings will be practically much helpful to find how to reinforce the relationships between parts suppliers and buyers.

• Journal of Distribution Research
• /
• v.3 no.1
• /
• pp.123-143
• /
• 1998

The aim of this paper is to investigate the women's apparel distribution channel in the well-known department stores located in the central Seoul area. Since the department store has its reputation, information and enormous buying power, it is the one of the major leading retails in the women's apparel industry. In doing so, the relationship between the channel members in terms of the level of dependence, power sources and perceived conflict and manifest conflict has been studied. Particularly, based on French and Raven's power sources, position source is added. It refers to a channel member's (Merchandizer in the department store) source over another based on the expection the former (Merchandizer in the department store) will be able to allocate the location and size of the store influencing the latter's sale and profit. The key informants are the merchandizers who work in the apparel companies contracting with major department stores. Finally, of the 284 questionnaires collected, 235 are usable. The hypotheses are tested through LISREL. The results of statistical analysis support that : Dependence has a positive effect on noncoercive bases of power. Coercive bases of power have a positive effect on manifest conflict as well as perceived conflict while noncoercive bases of power have a negative effect mainly on manifest conflict. Thus, the relation between the major department stores and the women's apparel companies in there seems to have bilateral dependence rather than highly unilateral dependence.

• Proceedings of the KIEE Conference
• /
• 1994.07b
• /
• pp.1345-1347
• /
• 1994

High frequency Magnetic Properties of amorphous $Fe_{78}B_{13}Si_9$ ribbon were studied. Squareness ( Br/Bs ) and coercive force ( Hc ) of the specimen field annealed at $380^{\circ}C$ for 2 hrs are changed with the tension and the measuring frequency. So, we could optimise the tension having good magnetic properties at a certain frequency.

• Journal of Korean Vacuum Science & Technology
• /
• v.2 no.2
• /
• pp.92-96
• /
• 1998

Ferroelectric Bi-layered oxides SrBi2Ta2O9 (SBT) thin films have been deposited on Pt/Ti/SiO2/Si substrates using multi-target sputtering. Structure, composition, and electrical properties have been investigated on films. The SBT films were deposited with the various bismuth sputtering powers. The SBT films deposited with the bismuth sputtering power of 20 W have the most dense microstructure and the remanent polarization (Pr) of 9.2 ${\mu}$C/cm and the coercive field (Ec) of 43.8 kV/cm at an applied voltage of 5V. The SBT films deposited with the bismuth sputtering power of 20W showed a fatigue-free characteristics up to 1.0${\times}$1010 cycles under 5V bipolar pulse and a leakage current density of 2.0${\times}$10-8 A/$\textrm{cm}^2$ at 200 kV/cm.