• Proceedings of the KSME Conference
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• 2003.11a
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• pp.1542-1547
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• 2003

Air entrainment can become a significant problem in a web handling process. The development of air film between a web and an idle roller can cause a reduction of traction and traction coefficient, by which a slip is occurrred. Computational and experimental study was carried out to describe the slippage of an idle roller for given operating conditions, tension and web velocity. An extended mathematical model to find out a slip condition was developed by using the models of air film height, dynamic traction coefficient, and torque balance of a rotational roller. And by using the extended model, a mechanism to define the slippage between the roller and the moving web was suggested. The results of simulation and experiment showed that the extended dynamic model could properly characterize the rotational motion of the idle roller by considering dynamic traction coefficient. By examining the rotational motion of the idle roller with web dynamics(speed), the mechanism to define al slip condition between the roller and the web was found to be effective.

• Journal of Distribution Science
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• v.11 no.11
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• pp.63-69
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• 2013

Purpose - This study sought to discuss definitions of organizational culture taking into consideration different views, and the historical and philosophical elements of organizational culture. Research Design, Data, and Methodology - This paper is a relatively conceptual study that has attempted to define organizational culture, a topic that has been debated among scholars and practitioners. Various studies in the literature related to organizational culture have been reviewed in an effort to reduce the complexities and ambiguities in definitions of organizational culture. Results -This study summarized and synthesized different studies related to organizational culture, and identified the main streams for defining organizational culture as being from the historical and philosophical elements of organizational culture. Conclusions -The concept of organizational culture continues to be an important factor affecting organizational effectiveness and initiating organizational development. However, the definition of organizational culture has not been well-established. In this sense, this paper seems to be significant and meaningful as it attempts to define organizational culture from different perspectives.

• 제어로봇시스템학회:학술대회논문집
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• 2000.10a
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• pp.25-25
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• 2000

This paper presents a design method of sliding mode control (SMC) for single input linear systems with mismatched uncertainties. We define a virtual state based on the controllable canonical form of the nominal system. And we define a sliding surface for the augmented system with a virtual state. This sliding surface makes it possible to use SMC technique with various types of controllers. In this paper, we construct a controller that combines SMC with robust controller. We design a robust controller for the system with only mismatched uncertainties using a form of linear matrix inequality (LMI). We make a virtual state from this robust control input and the states of the nominal system. And we design a sliding mode controller that stabilizes the overall closed-loop system.

• Journal of Biomedical Engineering Research
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• v.17 no.2
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• pp.263-273
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• 1996

The time instants, at which QRS complexes are detected, are used in the electrocardioyam rhythm analysis. Hence, it is necessary that all QRS complexes are detected and that no other waves or artifacts are wrongly labeled as such. These time instants are also used in other tasks as an indication of the location of significant events in the ECG. For example, the QRS typification algorithm uses these points to define the region of interest for complex comparison and alignment. When waveform recognition is drone for each complex, these points are used to define search intervals in which the onset and the end of the QRS nmplex have to be found This paper proposes the method for the detection of QRS complexes and decision rule for the classification scheme. The efficiency of the detection is demonstrated with the aid of an internationally validated CSE(Common Standard for Quantitative Electrocardioyaph) data set 3 and 4.

• Journal of the Korean Statistical Society
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• v.28 no.2
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• pp.235-251
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• 1999

In this paper we examine extremal behavior of a $textsc{k}$th-order stationary Markov chain {X\ulcorner} by considering excesses over a high level which typically appear in clusters. Excesses over a high level within a cluster define a cluster damage, i.e., a normalized sum of all excesses within a cluster, and all excesses define a damage point process. Under some distributional assumptions for {X\ulcorner}, we prove convergence in distribution of the cluster damage and obtain a representation for the limiting cluster damage distribution which is well suited for simulation. We also derive formulas for the mean and the variance of the limiting cluster damage distribution. These results guarantee a compound Poisson limit for the damage point process, provided that it is strongly mixing.

• Proceedings of the Korean Society for Language and Information Conference
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• 2007.11a
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• pp.136-145
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• 2007

This paper explains how we define and represent modality in E-HowNet. Following Lyons (1977, reviewed in Hsieh 2003, among others), we hold that modals express a speaker's opinion or attitude toward a proposition and hence have a pragmatic dimension and recognize five kinds of modal categories, i.e. epistemic, deontic, ability, volition and expectation modality. We then present a representational formalism that contains the three most basic components of modal meaning: modal category, positive or negative and strength. Such a formula can define not only modal words but also words that contain modal meanings and cope with co-compositions of modals and the negation construction.

• Journal of the Korean housing association
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• v.14 no.6
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• pp.173-184
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• 2003

To be a good architecture, resident' needs should be defined as possible as definitely. A Multi-family housing is not easy to define of resident' needs, because the user is ambiguous and the needs is multi aspects. Byker housing project have a good approach to define ambiguous and many aspects of residence' need. In this view points, Byker redvelopment project show the process of resident' participation as a new customers, and design process architect with people, in spite of the early 1970s' project in terms of the user participations. This approach of residence participation is a good lesson how to communicate with recidence, how to identify the need, and its design is satisfied in the residence. And its project are discussed with residence how to manage of rehabilitation.

• Lingua Humanitatis
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• v.1 no.1
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• pp.323-345
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• 2001

My purpose in this paper is to construct what I call "the space of hope" for the individual′s unfettered interpretation of the world and examine its ethical and political potential. 1 discuss the network of context to define the nature and scope of the space and also suggest that the individual′s interpretation of the world should be deemed a form of ethical practice or commitment. 1 would like to add that the term context, which refers, among other things, to the organic and dynamic relationship between individual and community, is meant to be strategic: it presupposes productive malleability, even slipperiness, in order to destabilize the institutional or ideological hierarchy between center and margin and enhance the individual′s self-conscious negotiation with his or her own community. It is my contention that every act of interpretation is always under some kind of contextual pressure and that the individual is able, in turn, to define and construct the context. This interaction represents a way to guard against the inimical force of totalization in the realms of theory and practice and can be summed up, that is, tentatively and strategically, in the idea of positionality.

• Journal of the Korea Society of Computer and Information
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• v.4 no.4
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• pp.170-176
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• 1999

This paper addresses the design of object distribution in distributed object-oriented databases. The proposed strategy of object distribution consists of two-step design of fragments. One step is class fragmentation and the other is allocation of fragments. We define partitioning algorithms to reflect the characteristics of object-oriented databases in the class fragmentation and define expressions to reduce the amount of data transfer by allocating fragments of other classes referred together to one site in the allocation of fragments

• Proceedings of the KSR Conference
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• 2008.06a
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• pp.2230-2235
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• 2008

As a consequence of the standardization process developing in Europe, on April 2005 the new European standard EN 13749 was issued by the European standardization body CEN. The norm EN 13749 standardizes and develops the requirements already present in UIC leaflets for test verifications and define all technical requirements for the acceptance process in order to achieve a complete satisfactory design of the bogie. The aim of the norm is to define the complete design process of new railway bogies. It includes design procedures, assessment methods, verification and manufacturing quality requirements. In this study, fatigue analysis of the bogie frame is investigated comparing different approaches between conventional methodology and simulation results based on the VPD(Virtual Product Development).