• 한국신재생에너지학회:학술대회논문집
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• 2010.11a
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• pp.131.1-131.1
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• 2010

This study was conducted for engineering optimization for the gasification process which is the key factor for success of Taean IGCC gasification plant which has been driven forward under the government support in order to expand to supply new and renewable energy and diminish the burden of the responsibility for the reduction of the green house gas emission. The gasification process consists of coal milling and drying, pressurization and feeding, gasification, quenching and HP syngas cooling, slag removal system, dry flyash removal system, wet scrubbing system, and primary water treatment system. The configuration optimization is essential for the high efficiency and the cost saving. For this purpose, it was designed to have syngas cooler to recover the sensible heat as much as possible from the hot syngas produced from the gasifier which is the dry-feeding and entrained bed slagging type and also applied with the oxygen combustion and the first stage cylindrical upward gas flow. The pressure condition inside of the gasifier is around 40~45Mpg and the temperature condition is up to $1500{\sim}1700^{\circ}C$. It was designed for about 70% out of fly ash to be drained out throughout the quenching water in the bottom part of the gasifier as a type of molten slag flowing down on the membrane wall and finally become a byproduct over the slag removal system. The flyash removal system to capture solid particulates is applied with HPHT ceramic candle filter to stand up against the high pressure and temperature. When it comes to the residual tiny particles after the flyash removal system, wet scurbbing system is applied to finally clean up the solids. The washed-up syngas through the wet scrubber will keep around $130{\sim}135^{\circ}C$, 40~42Mpg and 250 ppmv of hydrochloric acid(HCl) and hydrofluoric acid(HF) at maximum and it is turned over to the gas treatment system for removing toxic gases out of the syngas to comply with the conditions requested from the gas turbine. The result of this study will be utilized to the detailed engineering, procurement and manufacturing of equipments, and construction for the Taean IGCC plant and furthermore it is the baseline technology applicable for the poly-generation such as coal gasification(SNG) and liquefaction(CTL) to reinforce national energy security and create new business models.

• International Commerce and Information Review
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• v.14 no.3
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• pp.539-558
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• 2012

The purpose of this study is examining the differences of mobile SNS's service quality, which consists data quality and system quality, among the groups that are classified by commitment and customer loyalty. For the experimental analysis, the frequency analysis was performed for general characteristics of sample. The variables were selected by factor analysis that also prove the validity of variables. The value of Cronbach's alpha was calculated to check the reliability of variables. In addition, the group was determined by the both hierarchical and hierarchical cluster analysis, then ANOVA was performed to test the hypotheses that there are differences of mobile SNS's service quality, among the groups that are classified by commitment and customer loyalty. The results of this study support that there are differences among the groups toward mobile SNS's service quality and also shows the more commitment and loyalty group is the higher recognition of mobile SNS's service quality. Thus, the companies have to realize that mobile SNS is very important key factor to success in rapidly changing business environment. In conclusion, the companies implement different customized strategy for the different group and develop the contents and the applications to maximize the commitment and loyalty of for the mobile SNS users.

• The Journal of Information Systems
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• v.5
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• pp.115-147
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• 1996

1. Introduction The new computing era started with the various computer technologies and services having been used in communication and automation area since 1980's. We call that era information technology(IT) era. In such era, especially communication plays very important roles in every aspect. So Schoderbek named that era the ege of c2. Therefore, communition became widely used in organizations. Now the majority of organizations have computer-aided communication capabilities that facilitate access to people and information, both within and outside organization. So one objective of this study is to assess the effects of these changes in data communication on decision making. Decision making is the essence of management and is too important to organizational success. This dissertation has three basic objectives: 1)to clarify the concept of data communication, who influences on decision making, and the concept of decision types, managerial and operational, may be affected differently by data communication 2)to investigate whether the effects of data communication upon decision making may be organizational variables. 3)to verify that business and decision types may affect different impact on decision making.2. Hypotheses Four attributes are selected to make hypotheses from the information attributes presented by famous scholars. They are as follows. ①effectiveness ②routinization ③communication easiness ④timeliness Hypotheses are developed according to these attributes, which are chosen from the literature study and theory H1 : Data communication is positively related to the effectiveness of DM H2 : Data communication is positively related to the routinization of DM H3 : Data communication is positively related to the communication easiness of DM H4 : Data communication is positively related to the timeliness of information for DM3. Methodology After pilot study, data are collected from the decision makers in 200 companies located at Seoul and the metropolitan area. A random sample of 174 employees sent back their questionnaires(response rate of 87%). Among them, 151 questionnaires was useful to the analysis of this study(useful rate of 75.5%).4. Conclusion and Discussion Among four proposed hypotheses, all hypotheses are fully supported. They are as follows. 1)effectiveness 2)routinization 3)communication easiness 4)timeliness. So, first objective of this study is proved. Namely, to clarify that the effects of data communication upon DM is fully supported. But they are different from the decision types. Second one is not apparently verfied. i.e. the effect of data communication on the decision variables is not moderated by organizational variables. Third is inspected. The effects of data communication differs from the industry and decision types evidently. This study has many limitations to generalize the statistical results. Since the definition of data communication has broad meanings in reality. So allare not contained in this research. Another restrict in this study is like this. Decision types are usually divided into three types-operational, managerial, strategic DM. But in this study, strategic DM is left out.

• Survey Research
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• v.8 no.1
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• pp.1-30
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• 2007

Several corporations are adopting the 6 Sigma program. Not all corporations are yielding intended results. The inconsistent results may due to the absence of an adequate strategy formulation of 6 Sigma implementation. The 6 Sigma is a qualify control program but its implications are not confined only to qualify improvement. The 6 Sigma program is a change program to bring about changes in organizations. The thesis focuses on developing an installation strategy or model of 6 Sigma program. The utility of the model developed in this research is supported by the empirical evidence. The validity of the model is tested and verified based on the questionnaire survey conducted at 281 business firms. Few research has adopted the empirical survey. The previous researches are mostly centered around identifying success factors. Unlike the present methodology adopted in this research, the past research methodologies are mainly case studies. The distinctive feature of this research does not confine only to the methodology. This research attempted to identify an installation model that would help enterprises get maximum output from the 6 Sigma program. The suggested model is named as Sequential Model(SM). The SM consists of three stages: the preparation stage, the acceptance stage, and the maturity stage. The model is based on the assumption that organizations should follow three stages sequentially to yield the desired output effectively, The preparation stage is further defined including the organizational change factor, the driving system factor, and the promotion factor. The result variable, the organizational performance, is also further defined including the market competitiveness, the employees competitiveness, and the financial performance. The Structural Equation Model was used to test the validity of the Sequential Model(SM). Several alternatives models were developed and compared. The test results consistently show that the suggested model is a valid one and proves its superiority over alternative models. Through this empirical research, we have shown that the strategies of enterprises in line with the proposed model gained better results over others. The research results would be useful information for enterprises that consider formulation of installation strategy of 6 Sigma program.

• Journal of the Economic Geographical Society of Korea
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• v.6 no.1
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• pp.119-144
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• 2003

This study attempts to figure out the impact of Information and communication technologies (ICTs) on spatial structure and to speculate on spatial strategies in the electronic economy from a geographical perspective. The unprecedented development of ICTs based on the explosive use of the Internet was enough to lead to the expectation that physical distance would not be a significant barrier in business activities. In fact, however, at least at a current stage, the development of ICTs has not automatically removed the inequality in spatial structure. The accessibility to electronic space is different by economic and social status within a country as well as between countries. The importance of place, locality, and place-specific assets has been strengthened in the global economy. Physical proximity is still of great importance because it helps to minimize transaction costs, to exploit place-specific social networks, and to accumulate credibility for successful businesses. Likewise, the development of electronic commerce such as B2B and B2C EC also does not necessarily result in the ignorance of place and locality. Rather, the recognition of the importance of spatial strategies is extremely important for the success in online businesses. As a conclusion, the spatial dimension becomes more important in the digital era for successful businesses and balanced regional developments than ever before. The need for the improvement of ICT infrastructures, the development of human resources, and the establishment of regional innovation systems in peripheral areas cannot be overemphasized even in the digital era.

• Information Systems Review
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• v.8 no.1
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• pp.101-123
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• 2006

The main purpose of this study is to conceptualize and investigate the relationship between customer satisfaction and the linking variables of customer loyalty in internet shopping mall including general merchandise and specialized online mall. To achieve this objective, the study tries to validate the structural equation model and causal relationships among the model's elements involving customer satisfaction, customer trust, customer attitude, relationship involvement, and customer loyalty. The same research model was used in analysing general merchandise and specialized internet shopping mall to reveal and compare the casual path constructs. Empirical findings are as follows: First, all the hypothesis concerned with internet merchandise shopping mall were accepted but the direct effects between satisfaction $\Rightarrow$ loyalty and satisfaction $\Rightarrow$ attitude rejected in case of specialized internet shopping mall. Second, I found out that there were direct or indirect relationships between the mediating variables(satisfaction, attitude, involvement) and site trust and customer loyalty irrespective of internet shopping site patterns. In Particular, the direct effects of on customer loyalty showed the difference each other, but the indirect effects through satisfaction, attitude, or relationship involvement were all accepted. This means that the proper management concerned with indirect path is probably more important for the success of all kinds of internet shopping mall. The implications of this research may be summarized as follows. First, click and mortar companies should clearly understand and articulate the key requirements of shopping mall trust and satisfaction. Second, online companies are encouraged to establish linkage including trust, positive attitude, relationship involvement in order to foster customer loyalty. Third, companies are not only required to differentiate the internet marketing strategy adapting to the patterns of internet shopping mall but also to customize the interaction strategy in the formation process of customer loyalty.

• Management & Information Systems Review
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• v.28 no.4
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• pp.199-228
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• 2009

SISP(strategic information system planning) is an important part of IS management. Through it, organizations establish effective long-term use of IS and ensure their support of organizational objectives. This entails establishing priorities for implementation of new applications, developing policies and procedures for managing the IS function and IS services, and construction of information architecture. Many studies have tried to improve SISP practice by discussing planning problems, identifying factors critical to the success of planning efforts, and providing methodologies for carrying out the process. Others tested the appropriateness of formal SISP under varying contextual circumstances and examined a number of contextual variables for their effects on SISP practice and its effectiveness. In this paper, the two criteria(the improvement of planning capabilities and the fulfillment of planning objectives) of successful SISP will be given and the relationship between organizational variable(IS-present role, IS-future role, formalization, time horizon) and improvement of planning capabilities will be analyzed. And then the relationship between improvement of planning capabilities and fulfillment of planning objectives will be examined. Specific description about the purpose of this study is as follow: (1) What are the determinants of successful SISP? (2) Which contextual factors are important and how strong are their influences to the improvement of planning capabilities? (3) How important is the improvement of planning capabilities to the fulfillment of planning objectives?

• The Journal of the Korea Contents Association
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• v.11 no.7
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• pp.508-518
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• 2011

In various urban renewal projects related to real estate, developer in order to conduct the business, must get real estate inside project section directly or receive the consent for project from the owners. It must be carried out by consultation. When it fails, developer, in order to get ownership, adopts 'the Right of Claim for the sale' which has forcibleness. However, because the procedure for implementation of the right of claim for the sale is not clear, conflict between stakeholders is caused and it causes extension of period. Therefore, after examining judgments and references of judicial power for administrative litigation of the Right of Claim for the sale, by researching stakeholders of the housing rebuilding project and based on the results, finding out differences of stakeholders' recognition according to their position and problems of exercising procedure of the Right of Claim for the sale, and by presenting improvement plans of the system of the Right of Claim for the sale, contributing the success of the housing rebuilding project is the purpose of it.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.3
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• pp.1270-1277
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• 2011

Since the pharmaceutical industry is a research oriented sector, the research and development capability based on the qualified R&D manpower is one of the key success factors to strengthen the national competitiveness. Securing the appropriate number of researcher needed for the research activities in these fields is an important precondition for a government policy that aims for a strongly knowledge-intensive the pharmaceutical industry growth. In this study, we conducted and analyzed a delphi survey of the experts(the principal investigators) with expertise in these pharmaceutical research areas. The current and future requirements for the pharmaceutical science research personnel including medical doctors have been evaluated, extending the year 2017. The results of this study can be summarized as follows; First, in 2007 the field of pharmaceutical R&D personnel is currently under-supplied as many as about 5,600 people. The rate of under-supplied is about 18.1%. Second, in 2017 the evaluation shows that the R&D personnel in this field will be more severely under-supplied as many as 13,500 people. The rate of under-supplied will be about 28.6%. As a result, the confrontation of demand and supply evaluation shows that, in general, severe shortages of R&D manpower in the field of pharmaceutical will result if there are not adequate manpower policy adjustment.

• Journal of the Korean Society of Marine Environment & Safety
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• v.13 no.4
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• pp.101-105
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• 2007

The people who lived in Fujian district along the south-eastern coast of China long ago began to construct ships and go fishing. For this reason, they grasped sound navigation skills and gained rich navigation experience. These skills and experience laid basis for the following large-scale overseas trade. In the Tang dynasty, with the development of economy, the people who lived in Fujian district started to leave home town and engage in overseas trade. In the Song dynasty and the Yuan dynasty, with the fast development of overseas communication, more and more Fujian maritime merchants, navigating the Fujian ships which were safe, fast and could arrive at destination on time, engaged in overseas trade. The Fujian ships made it possible for the Fujian maritime merchants to shorten trade time, catch business opportunity, level up the chance of success in trade and make full use of capital. As a result of this, Fujian maritime merchants gained fast development and they reached far areas such as eastern Asia, south-eastern Asia, southern Asia, and eastern Africa. This study deals with the issues such as the reasons for the development of Fujian maritime merchants, the trade engaged in by Fujian maritime merchants, the Fujian ships which played a decisive role in the overseas trade of Fujian maritime merchants.