• Journal of Korean Society for Quality Management
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• v.36 no.3
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• pp.22-33
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• 2008

In this paper, first of all, the driving performance of QCCs(Quality Control Circles) that are stagnant during 10 years are reviewed. And the usage realities and utilization degree of quality improvement tools in the domestic activities of QCCs are empirically analyzed into size of company and type of business. Thus, this empirical study compares the results of past period in 1997${\sim}$1999 with the results of 6 sigma non-adapting period in 2000${\sim}$2003 through examining the collections of presentation for Korea Quality Control Circle Meetings. Also, according to the introduction of 6 sigma in QCCs activities the difference of utilization degree for quality improvement tools are analyzed to compare the results of 6 sigma non-adapting period in 2000${\sim}$2003 with the results of 6 sigma adapting period in 2004${\sim}$2006. Finally, the utilization degree of 6 sigma tools which follow the driving steps of 6 sigma, DMAIC, are analyzed.

• Korean Journal of Childcare and Education
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• v.12 no.3
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• pp.177-195
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• 2016

The purpose of this study was to investigate the effect of early educator's psychological exhaustion and happiness on adapting ability of children in early education settings. Two hundred ten early educators and six hundred thirty children were selected as subjects of this study and were requested to participate in a survey. The results of this study were as follows: First, as a result of analyzing the relationship between early educator's psychological exhaustion and happiness as well as children's adaptability on education facility, higher psychological exhaustion and lower happiness were related to lower children's adaptability on education facility. Second, as a result of comparing comparative impact that psychological exhaustion and happiness has on children's adaptability on education facility, psychological exhaustion of the teacher impacts negatively on children's adaptability on education facility and happiness of the teacher did not significantly impact children's adaptability on education facility. This research is expected to be used as foundational data that helps to recognize the importance of psychological exhaustion and happiness of the teacher and could be used to develop various programs that support teachers to recover from burnout and to increase happiness.

• Journal of Technology Innovation
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• v.14 no.2
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• pp.29-48
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• 2006

This paper analyzes organizational behavior of an established firm when disruptive innovation, a change in product architecture, occurs on a previous product. For the analysis, the paper analyzes and compares the behavior of an established fm through product trajectories between NEC (an established firm) and Toshiba (a new entrance) in the Japanese laptop computers industry. An established firm that has developed and produced a previous product is difficult in adapting to a disruptive innovation due to accumulated immense knowledge through a previous product. By using regression model in the product trajectory analysis, the paper analyzes the behavior of established firms. Product trajectory means a pattern of product strategy shown in a series of products. Two facts found in the paper are as follows. First, though NEC was able to develop a laptop computer at the same time with Toshiba, it was restricted by the resources of a previous product in the early stage. Second, possibility of teaming trap in the adapting process was found. The paper found the risk that too much commitment in one evolution stage would prohibit the adapting behavior in the next evolution stage.

• Food Industry And Nutrition
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• v.5 no.3
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• pp.38-46
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• 2000

• Korean Circulation Journal
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• v.53 no.9
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• pp.645-647
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• 2023

• Journal of Industrial Technology
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• v.28 no.A
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• pp.97-104
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• 2008

Recently, interests on positioning system for location-based services have been significantly increased. Many indoor environment systems using fingerprint scheme have been designed to take more accuracy of positioning, but they are inefficient in adapting to change of environments. In this paper, we focus on a client-based positioning system over WLAN for decreasing installation cost and adapting to change of environments. In the proposed system, APs with stable RSSI are selected as base APs independently for each reference point. Experimental results show that proposed system expands service area approximately 20% much than traditional systems using K-NN algorithm and needs only 20% modification process to fingerprint data compare with traditional systems whenever environment conditions are changed.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.9 no.3
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• pp.108-112
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• 1984

The motivation in this paper is in obtaining an adaptive observer with simple configuaration and faster adapting speed. The identification and state estimation are seperated to increase the adapting speed of the adaptive observer. The method of identification proposed by Ichikawa is modified. And the adaptive observer is constructed by using the output of state variable filters that are used in identification. Finally, the digital simulation results to the proposed system are presented.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.7 no.3
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• pp.379-384
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• 2006

The paper describes a method of user feedback in order to enhance the retrieval effectiveness. In this paper, to overcome a weak point of the existing feedback function adapting fuzzy technique, we proposed the interaction function using gaussian function that gives different learning rate according to choice of components with same function. And, we grade degree that the user opinion is reflected to a system by applying user profile to the feedback function. User retrieval feedback method is adaptive retrieval method that makes a slow change for a long time using feedback function adapting gaussian function and user profile.

• Communications for Statistical Applications and Methods
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• v.11 no.2
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• pp.355-368
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• 2004

In order to use Kriging, one has to estimate three parameters(nugget, sill and range) of semivariogram, which shows the relationship in the given two sites. A visual fit of the semivariogram parameters to a few standard models is widely used. But, it does not give the suitable results and not provide the automated process of Kriging. The gradient based nonlinear least squares is another choices to estimate three parameters, but it has some problems such as initial value problem. In this paper, we suggest the genetic algorithm as a compatible alternative method to solve the above mentioned problem. Finally, we estimate three parameters of semivariogram of rain-fall by adapting the genetic algorithm, compute Kriging estimate and conclude its effectiveness and compatibility.

• Research in Mathematical Education
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• v.13 no.1
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• pp.5-12
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• 2009

Mathematical creativity is the most important factor for the advancement of mathematics. Only creative mind can produce creative results. But not much research work has been done in this direction. The present author has taken a scheme of developing a mathematical creativity test to identify creative children in mathematics and to find the relationships of psychoticism, neuroticism, intelligence, ability to achieve in mathematics and general creativity with mathematical creativity and their composite effect on it over a population of Bengali medium school students. In this approach, Bengali adaptation of English version of the "Verbal Test of Creative Thinking" by Mehdi [Mehdi, B. (1985). Manual of verbal test of creative thinking (revised edition). Agra, India: National Psychological Corporation.] has been completed. Works of adapting intelligence test, developing mathematical creativity test, adapting personality test in Bengali are in process. Relationships are to be found later.