• Journal of the Korean Society of Propulsion Engineers
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• v.9 no.3
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• pp.85-91
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• 2005

Radiative heating of a liquid rocket base plane due to plume emission is numerically investigated. Calculation of flow and temperature fields around rocket nozzle precedes and thereby realistic plume shape and temperature distribution inside the plume are obtained. Based on the calculated temperature field, radiative transfer equation is solved by discrete ordinate method. With the sample rocket plume, the averaged radiative heat flux reaching the base plane is calculated about 5 kw/m$^{2}$ at the flight altitude of 10.9 km. This value is small compared with radiative heat flux caused by constant-temperature (1500 K) plume emission, but it is not negligibly small. At higher. altitude (29.8km), view factor between the base plane and the exhaust plume is increased due to the increased expansion angle of the plume. Nevertheless, the radiative heating disappears since the base plane is heated to high temperature (above 1000 K due to convective heat transfer.

• Korean Journal of Remote Sensing
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• v.22 no.6
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• pp.595-600
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• 2006

GOCI is the core paryload of the geostationary satellite COMS(Communication, Ocean and Meteological Satellite) for ocean monitoring. It is scheduled to be launched at the end of 2008. GOCI observes ocean color around the Korean Peninsula over $2500km\times2500km$ area. It used tilted two-axis scan mechanism to observe entire field of view. In this work, the pointing stability of the tilted two-axis method is analyzed and compared with that of gimbal method. The analysis results show that tilted two-axis method gives great stability and it is adequate for geostationary payload. The results can also be used to determine and analyze the mechanism specifications.

• Archives of design research
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• v.20
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• pp.41-48
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• 1997

We easily witness that environmental issue is very critical point to affluence upon a restructuring the value system of human being. Therefore it is obvious that this issue affluence upon the field of design as well. The most important feature of environmental issue is 'wholeness' in itself. It means that we have to approach and to solve it as a whole. Also, design is to be done at the same way. The creative professionalism of design could provide a clue to solve the problem, but designer are tend to seek a solution in a just partial way such as recycling and packaging. But those attitude may cause more problems and spread it futhermore. Therefore this study is analysis some recognitive turning factors in order to solve the problems as a whole, and to suggest a appropriate methods according to such a view point. Even internal retrospect in design itself or external demand from the other, If we look away this issue, the real purpose of design, contributing for society, should be diluted by ourselves.

• The KIPS Transactions:PartC
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• v.13C no.6 s.109
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• pp.795-802
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• 2006

The Electronic Commerce with development was advanced information technique in transaction from at the election, and now it is sharply evolving into Mobile Commerce capable of Electronic commerce while the user moves. Mobile Commerce has some feature in Electronic Commerce, but has the different feature. analyzed the feature of Mobile Commerce were carried out, but those were processed according to its location and field only and special of view. This study sought the new characteristic which is different from the existing Electronic Commerce, and took account of the successful factor for Mobile Commerce which includes the position in a user, a developer and an operator. In addition, AHP (Analytic Hierarchy Process) was used in order to evaluate the extract factor applied to each related to through more objective methods. The analysis results identified in this study such as the quality trust and the accessibility to understanding for an content duality might be the one of the chief elements of success in Mobile Commerce which applies at the present.

• Journal of Broadcast Engineering
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• v.7 no.4
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• pp.355-361
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• 2002

In this paper, several methods which guarantee the seamless editing when the splicing is applied to the MPEG-2 system streams are described. In the MPEG-2 system standard, it is recommended that the splicing technique is applied in the Transport Stream(TS) domain. However, in view of the video editing, the splicing at an arbitrary picture unit can not be guaranteed. The splicing in the PES domain is only considered in this paper because the PES is one of the MPEG-2 system streams and this result could be directly extended to the video splicing techniques in the TS or PS domain. Thus. the problems that might occur when different two PES streams are spliced and its effects to the video quality are compared and analyzed. Based on this analysis. several methods that can resolve these problems directly in the PES domain are proposed. Consequently, the computer simulation demonstrates that the splicing at a GOP modulo is guaranteed to have good video quality even without considering the state of the PES packet only if the PES_packet_length field of the PES packet header is used.

• Korean Business Review
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• v.11
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• pp.1-14
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• 1998

In this paper the negotiation skills, which have been so far known as non-scientific or artistic field, are analyzed on the basis of behavioral science view point. Negotiator's behavior and psychological situation are believed to influence the negotiation result significantly, therefore, those factors are reviewed with behavioral science framework. Some concepts developed in Cognitive Psychology to explain the decision making models - prominence, commitment, escalation of commitment, framing, adjustment and anchoring, endowment effect - are reconceptualized and applied to the negotiation skill analysis and negotiation skill development in this paper. As the results of this research, various negotiation skills which have been so far believed as irrational and artistic are now able to be explained on the basis of sound logic and reasoning. This means also that valuable and elegant negotiation skills should be further developed by behavioral scientists.

• The Journal of the Korea Contents Association
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• v.9 no.5
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• pp.265-276
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• 2009

Many disaster management actors participate in the disaster sites and they do their best for the best result in their given position. They recover the disaster-stricken area, endeavor to prevent the disaster's relapse, and to rescue and protect the disaster victims. Ultimately, the purpose of their role and effort is to support a physical aid as well as material aid for that disaster victims can return their living condition to the original one before the disaster. However, the disaster management services have been provided in the supplier's view till now. Subsequently, despite significant efforts, providers have failed to comprehend what would be the victim's demand and how to reflect that in the disaster management service. In this paper, we approached and analyzed the recent disaster management service in the way of grounded theory, and endeavored to find the solution which disaster victims preferred. As a result of analysis, we found 184 concepts, 28 sub-categories, and 9 categories which could explain the victims' desired solution. We found that "an imperfect restoration which causes disaster" and "pain of the disaster field" would be main categories among them.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.10 no.4
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• pp.13-25
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• 2015

It seems crucial for entrepreneurship researchers to study how individual creativity is influenced by a number of entrepreneurship related traits. This is because individuals aiming to become entrepreneurs by launching their own start-ups need to enhance their creativity level to compete successfully in the target market. In the field of entrepreneurship studies, however, there is no literature about exploring the relationship between individual creativity, and entrepreneurship related constructs such as intrinsic motivation, parasocial interaction, prosocial motivation, and perspective taking. In this sense, our proposed research model focuses on filling the research void like this. To verify the proposed research model. we collected valid data from college students. To add rigor to our study, we allowed participants to view a talk show content where a successful entrepreneur was telling his story. Empirical test results were robust statistically enough to prove the validity of our proposed research model.

• The Journal of the Korea Contents Association
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• v.6 no.4
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• pp.81-88
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• 2006

Ubiquitous has been a new issue in information technology field. Some people in GIS(Geographic Information Systems) and urban and regional planning have maintained that not only building three dimensional graphic environment in cyberspace is the key for ubiquitous, but also planners should plan and control the new space. They may believe that ubiquitous would be a mixture or/and combination of real-space and cyberspace. For strengthening their arguments, they should show the character of the space can be related to the three dimensional space and planning the space is possible. This study tried to critically analyze their assertion. After reviewing various articles and studies in multidisciplinary view, this challenging analysis shows those arguments need more sophisticated studies and can limit the character of cyberspace which has made the space prosperous.

• Journal of Korean Public Health Nursing
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• v.4 no.1
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• pp.37-55
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• 1990

Every country in the world has been trying to expand the basic health right for the peoples as W.H.O has established the goal 'health for AU' by the year of 2000. Related to this goal, our government authority has establish the policy 'the insurance of health for all' into effect from July 198\). Recently hospitalshave been making a ceaseless effort for the plan for the rationalization of its management the academic World is making it a subject of discussion by doing the secure of manpower at a resonable level and the increase of productivity by the manpower. As a result of the efforts the study was established to secure the numbers of nursing manpower at a resonable level and use the unskilled persons at the utilizing field and seek the possible area of their activity for more efficient service through the investigation of ablity of simple nursing activities of regiestered nurses and nurse aides for rational function according to the educational levels and talents. The method of study was established by the registered nurses and nurse and nurse aides(R.N 229, N.A 226) who are working in 15 hospitals with over 200 beds. This surrey was conducted from Mar 29, 1989 to April 8, 1989. The method to test the degree of importance, difficulties, and the abillity of performance of a simple nursing activities was classified into 35 activities on the basis of references on this field. The degree of importance was composed from point l(Not so important) to 5(Very important). the degree of difficulties. was composed as follows; very easy - Point 1 very difficult and complicated - Point 5. and the ability of performance was composed from point 1 to 5. The materials gathered through the survey were analyzed with frequency, mean standard deviation, percentage. t-test, Anova, pearson's coefficient of correlation, stepwise multiple regression. factor analysis, discriminant analysis. The obtained results are summarized as follows: 1. The recognition values of the simple nursing activities of each group of registered nurse and nurse aides show; The degree of importance; 4.04 and 4.26 The degree of difficulties; 2.72 and 2.94 The ability of performance; 2.07 and 2.38 The brief summary shows there are little differences between who two groups the simple nursing activities turned out to be easy and simple work. 2. Regardless of the degree of importance, and difficulties, the ability of performance the important in fluencing of the degree of the simple nursing activities between the registered nurses and nurse aides was the order of educational level, hospital career, working career in wards and ages of the registered nurses and ages and hospital creer of nurse aides. The result was that the simple nursing activities could easily be familiar through the training of their working environment and period of experience. 3. Among the 35 simple nursing activities the items capable of resonable entrusting to the nurse aides are 5 that is helping bed-bathing, 8itz Bath, using bed pan, care while delivering patient, accompaying patient when visitor's check. There wasn't and differences between RN and nurse aides in performing the above 5 items. In anywhere. so we can say obviosuly that this nursing activities should be performed under the nursing system of which chief of nurse are supposed to supervise nurse aides as a possible function to be entrusted. In view of the above mentioned results, therefore, this partial functional job of the simple nursing activities can able be entrusted to the nurse aides through the regular training course. In case of these functional activities could be entrusted under, the responsibility of registered nurse, we can able suggest to for that there are the following advantages: 1.. In the nursing activities-affairs, the qualified guarantee of the nursing services can be kept and increased or promotoed with accommodation of the required nursing service and roles being expanded presently. 2. In the productivity of the hospital manpower, therefore, we have comt to view and consider in favourly that when an automational administration times would be come in the near future time to hospital affairs as a reality, to utilize the existing nures aides is better rather than investing so as to develop the other source manpowers or seek its for the efficient business management in the operational strategy or its policy.