• Proceedings of the Korean Operations and Management Science Society Conference
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• 2002.05a
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• pp.225-231
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• 2002

POSCO $\#2$ Stainless steel making plant produces more than 600 thousand ton per year with a variety of products consisting of austenite and ferrite stainless steel to meet custrmers' needs since 1996. The plant has four different major processes, that are, EAF-AOD-VOD-CC to finally produce semi-product called as slab. In this study, we importantly took AOD process into consideration due to its roles such as to check and verify the final qualities through sampling inspection. But the lead-time from sampling to its verification takes five to ten minutes causing produrtivity loss as muck as the lead-time as a result. Of all indices for quality and process control the plant has, carbon ingredient in liquid type of steel is the most important since it affects in a great way to the characteristics of steel, if any problem. customers not satisfied with quality could issue a claim; therefore there is no way hut to guarantee it before delivery. in this study, to reasonably reduce lead-time ran save a cycle time and finally improve our productivity from a state-or-art alternative just such as applying statistical model based on multi-regression analysis into the A.O.D line by analyzing the statistical and technical relationship between carbon and the relevant some vital independent variables. In consequence, the model with R-square $87\%$ allowed the plant to predict, abbreviating the process in relations to sampling to verification. approximately the value of [C] so that operators could run the process line with reliability on data automatically calculated instead of actual inspection. In the future, we are going to do the best to share this type of methodology with other processes, if possible, to apply into them.

• Journal of Arbitration Studies
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• v.13 no.2
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• pp.613-630
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• 2004

Conciliation is one of the most effective ADR(alternative dispute resolution) which takes the place of civil procedure. It is achieved with disputants' independent will. The disputants negotiate each other, and make peaceful settlement. If a compromise is effected between the two, it regards the compromise as a judgement of the Supreme Court. This effect on the conciliation is afford a basis for the private autonomies. But nowadays, the practical use of the private autonomies is not thoroughgoing enough in our country. It is a matter of no uncommon occurrence for the member of a conciliation commission to form a conclusion about the dispute and to persuade the disputants to accept the conclusion. Even the judges have a tendency to conduct a conciliation like civil procedure. Under these circumstances, it's harsh to the disputants that a compromise in the conciliation has an effect like the judgement of the Supreme Court. So you should reconsider carefully the role or service of a conciliation commission. The role of a conciliation commission must be to guarantee an atmosphere of freedom, and for disputants to negotiate without restraint. So the members of a conciliation commission should make an offer the disputants the information on the members and proceedings of the conciliation. It will make the disputants have a firm belief that the members are fair and conciliation will be progressed in a fair. Moreover they have to notify the disputants of the estimated norms which is concerned in the dispute, too. It will facilitate the negotiation and compromise, and will justify claim preclusion(res judicata) which is based on Korean Civil Conciliation Law(Article 29) says that conciliation has the full force and effect of a civil judgement of the Supreme Court.

• The Transactions of the Korea Information Processing Society
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• v.4 no.3
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• pp.775-791
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• 1997

This paper describes Real-Time Trasport Protocol(RTTP) that procisdes for a ; user cmnnection-oriented sercices with performance fuarantee.Assuming that eral-time network services will be provided,RTTP solves provlems at end-hosts.RTTP has defined a new set of primitives for real-time communication servies based on the analysis of uwer requirements on various applications.Introducing the notion of Abstract Network Layer independent of real networks.RTTP's implementation scheme can be applied to various netwoeks.The study also intriduces an inplemenation strategy, provide prdeictability of protocol processing time,wich should be known a priori for performance guarantee.Intermally,RTTP has a set of QoS translation rules that change a user'w performance requirements to the equivalent network QoS paramenters.RTTP also introuduces a new apportunistic error control mehtod that can trade-off between overhead and error corredtion according to a uwer's requirement on reliability.

• Journal of Digital Convergence
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• v.11 no.7
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• pp.19-26
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• 2013

This research sought to study viewers' perception of migrant women who wed Korean men following these women's level of specialty as shown on multi-cultural TV program by focusing on university students. Post test control group design method was utilized to conduct analysis, which demonstrates that there was a significant difference between the viewers on the professional migrant women and on the non-professional migrant women when it comes to the categories such as, 'Migrant women have specialized skills', 'migrant women have outstanding communication skills' and 'migrant women are independent minded.' Because of the existence (or non-existence) of professional careers as shown on TV program can affect viewers' perception of migrant women, it is necessary to develop measures such as development of expert group's advising system and to guarantee migrant women's diversity.

• Proceedings of the Korean Society of Propulsion Engineers Conference
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• 2010.11a
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• pp.585-589
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• 2010

It is important for the liquid rocket engine to meet the exact performance requirements in order to guarantee the successful mission of the launch vehicle. Usually, a ground combustion test for the engine is conducted to reduce the performance error and for the tuning. For the gas-generator (GG) cycle engine, this adjustment process can be easily tuned by means of the control valves. A linearized correlation between the process parameters of the control - the combustion chamber pressure and the mixture ratio of engine - and the independent parameter of the control- rotational angle of the control valve - could be suitable to reduce the tuning errors. Also this linearity can reduce the effort for the tuning and make the process more explicit by ensuring a more intuitive control. In this point, we proposed an algorithm in the frame of the in-house-developed program to obtain the control valves' inherent characteristics which satisfy the linearity.

• Journal of Institute of Control, Robotics and Systems
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• v.6 no.1
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• pp.73-80
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• 2000

The stewart platform manipulator proposed by stewart is the parallel manipulator which is composed of several independent actuators connecting the upper plate with the base plate and capable of executing a six degree of freedom motion. The manipulator has a structure of a closed loop form, and provides better load-to-weight ratio and ratio and rigidity than a serial manipulator with an open loop form. Moreover, the manipulator has high positional accuracy because position errors of actuators are not additive. Because of these advantages, this manipulator is widely used in many engineering applications such as a driving simulator, a tool of machining center, a force/torque sensor and so on. When this Stewart platform manipulator is controlled in joint space, it is difficult to design a controller using an analytic method due to nonhnearity and unknown parameters of actuators. Therefore, a PID controller is often used because of easiness in applications. To find the PID control gain, a trial-and-error method is generally used. This method is time-consuming, and does not guarantee a optimal gain. Thus, this paper proposes a GA-PID controller which selects an optimal PID control gain using genetic algorithms. And this proposed controller is evaluated experimentally and shows acceptable performance.

• Korean Journal of Social Welfare
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• v.50
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• pp.109-129
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• 2002

Studies of elder abuse are increasing in our country since the 1990s. But few studies have researched how older people may perceive and give meaning to the phenomenon of elder abuse. Old people have been alienated from their own problems. Elder abuse was constructed as a social problem by experts, not by older people themselves. The purpose of this study was to explore the older people's perceptions ell the meaning of elder abuse and interventions for it, using a qualitative approach based on the grounded theory. The findings from in-depth interviews with 10 the elderly were as follows: The elderly participated in this study has been constructing the aged as independence, privacy, and carer, which conflicts the existing social construction of the aged. They also had their own definition of elder abuse. They perceived all the psycho-emotional sufferings as major elder abuse. So, they understood that elder abuse was the pervasive problem which everyone would experience. They proposed that desirable interventions for it was to guarantee and to sustain their existing independent living.

• Aerospace Engineering and Technology
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• v.10 no.2
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• pp.37-48
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• 2011

Synthetic Aperture Radar(SAR) is a powerful and well established microwave remote sensing technique which enables high resolution measurement of Earth surface independent of weather conditions and sunlight illumination. KARI has been developing the first Korea SAR satellite which is scheduled to be launched in this year. The SAR satellite mainly consists of the bus platform and SAR payload. Most of all, the RF compatible design during the design phase and the verification of the RF compatibility during the testing phase is very important procedure for the in-orbit performance guarantee because the SAR payload radiates high power through the SAR antenna. In this study, the SAR satellite design criteria and verification procedure for the RF compatibility are described. In addition, this paper describes the RF full radiation testing (RF auto-compatibility testing) for the verification of the RF performance robustness, the testing configuration, and the test results.

• Journal of the Korean Society of Safety
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• v.28 no.1
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• pp.40-46
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• 2013

In the chemical process industries, accidents have a high potential and large effects on catastrophic results. Therefore the safety management for accident prevention plays a crucial role to guarantee the process safety. For these reasons, many systematic methods for safety management system have been widely employed in the fields of chemical processes. PSM (Process safety management) is one of most representative methods. The audit system, which is one of PSM system components, evaluates the performance of PMS system. However, most existing safety audit systems are not systematic and these are performed based on knowledges and experiences of various specialist. Moreover, the safety audit is only performed based on each independent technical component. So, the results of safety audit are not a quantitative index but only a series of commentaries. Finally, it is very difficult to obtain the comparison with other plants or industries. In this study, the novel systematic method and index-based accident database of auditing safety management systems for quantitative assessment are proposed. First, the elements of safety audit replace technical methods to categories of accident database. The F-N curve of each category for accident database is employed to derive the index for quantitative assessment. The Accidental Factor Risk Index (AFRI) is suggested for evaluating the effect of each element in accident database and safety audit system. The safety audit can be modified according to the proposed index.

• The Journal of the Korea Contents Association
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• v.21 no.9
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• pp.136-148
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• 2021

In this study, the theoretical principle and structural practice of Estill Voice Training model that enables independent control of voice organs in the actor's acting art using voice as a medium of artistic expression. Its purpose is to explore the positive utility that can be applied to operation. The research on the speech science methodology that controls the differences in speech output due to the principle of the generation organ is a reality that has not been actively introduced in Korea compared to the existing actor's speech training that encompasses both the mind and the body. Voice can guarantee the accuracy and stability of operation when an understanding of our body is preceded based on anatomical physiology as well as contribute to the characterization of the character's phonetic character an element of character creation. Considering the training model through proprioception in actor voice training has practical value and alternative significance that the actor can be sought as a principle and practical methodology in the process of generating a series of target sounds.