• The Journal of the Korea Contents Association
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• v.14 no.2
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• pp.535-543
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• 2014

In this paper, I proposed a way of improving computer education in elementary, middle and high schools. I firstly analyzed the importance of computer education by researching an index of a national economic condition, People's IT use frequency and the demand for computer education by students and parents. Secondly, I researched the condition of computer education in elementary, middle and high schools. Finally, I analyzed problems of current computer education and proposed three way of improving computer education in elementary, middle and high schools.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.33 no.4
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• pp.1551-1558
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• 2013

The purpose of this study is deriving proper plan which is improving functionality of three-way intersection in two-way road by using shoulder. Alternatives of this study were considered as installation of yield lane and application of TWLTLs (Two-Way Left-Turn Lanes). Case studies to utilize alternatives were limited to national and local roadways which is wider than 11 meters due to be required 3 lanes. Under various traffic conditions such as traffic volume of each direction and left-turn, alternatives were analyzed by simulation. As a results, application of TWLTLs was better than installation of yield lane in terms of improving rate (8.0% vs. 3.7%). Application of TWLTLs is supposed to better alternative, however enough driver education is required to improving safety because it is different with existing driving pattern and/or behaviors. Some limitations and future research agenda have also been discussed by on-site inspections.

• Proceedings of the KIEE Conference
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• 2000.07a
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• pp.245-248
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• 2000

This paper presents the test and operation results of the domestic demonstration of the reactive power compensation device called STATCOM (STATic COMpensator). The object of the paper is to describe the reliability of the unit based on the extensive operation databases. By controlling reactive power, the technology offers utilities the opportunity for increased efficiency and their capabilities will permit transmission planners make the best use of their existing transmission resources STATCOM is a custom power device in a way and can be used in a similar way for the dynamic compensation of power transmission systems, mitigation of voltage flicker and improving the power factor. It is shown that the STATCOM has clear advantages in areas such as: mitigation of voltage flicker and improving power factor.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.14 no.2
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• pp.562-576
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• 2020

The power allocation optimization problem is investigated for improving the physical-layer security in two-way relaying networks, where a full-duplex relay based half-jamming protocol (HJP-FDR) is considered. Specially, by introducing a power splitter factor, HJP-FDR divides the relay's power into two parts: one for forwarding the sources' signals, the other for jamming. An optimization problem for power split factor is first developed, which is proved to be concave and closed-form solution is achieved. Moreover, we formulate a power allocation problem to determine the sources' power subject to the total power constraint. Applying the achieved closed-form solutions to the above-mentioned problems, a two-stage strategy is proposed to implement the overall power allocation. Simulation results highlight the effectiveness of our proposed algorithm and indicate the necessity of optimal power allocation.

• Culinary science and hospitality research
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• v.6 no.3
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• pp.391-407
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• 2000

This is a study on the ways of improving the current Kwangju Kimch Festival. The Festival has many resources for attracting visitors. 'nevertheless. it has been criticized for marketing tools. including lack of publicity, institutional inertia. etc. A new approach for improving Kwangju Kimch Festival is needed to satisfy the needs not only for residents but also for visitors. especially japan tourists. the best way of improving the current Kwangju Kimch Festival might be the development of the product(for exemple, effective linkage system with tourist attractions) and promotion(advertising. publicity).

• The Journal of Korean Institute of Communications and Information Sciences
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• v.38B no.12
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• pp.984-986
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• 2013

DCF(Distributed Coordination Function) defined in IEEE 802.11 provides two different modes, namely, a 2-way handshake and a 4-way handshake according to the transmission procedure. If secondary transmission would not cause a collision with primary transmission, there is no need to postpone transmission unnecessarily. We study a feasible condition which can transmit data concurrently and propose a concurrent transmission scheme.

• Journal of the Korean School Mathematics Society
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• v.7 no.2
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• pp.51-65
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• 2004

The purpose of this study was to develop the way in improving of teaching statistics in school mathematics. I reviewed the curriculum of Korea and America in statistics at School. I proposed the effective way of teaching statistics with the curriculum and content of statistics and the method of teaching of students and teachers.

• Journal of Korean Society for Quality Management
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• v.17 no.2
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• pp.64-69
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• 1989

This paper aims at analyzing the process capability and at determining an optimal condition by experimental designs using the 2-way classification with repitition in order to maintain lower Nacl content and to refine both of a very small quantity of fatty acid and various magnetic ions in the glycerin to use ion exchange resin treatment process. An optimal condition of each level combination in both of passing temperature of cation exchange resin($A_1$, $A_2$, $A_3$) and of anion exchange resin($B_1$, $B_2$, $B_3$) is $A_3B_3$. The process capability index is improved from 0.63 to 1.40 and is interpreted as a desirable state. This analysis of process capability by experimental designs will contribute to improving productivity and quality of products.

• 제어로봇시스템학회:학술대회논문집
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• 1988.10b
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• pp.746-748
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• 1988

A way of improving the transient performance is suggested for a class of model reference adaptive control systems. To increase the convergence rate of a model following error, an error feedback term is incorporated into the control law.

• Magazine of RCR
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• v.3 no.1
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• pp.23-26
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• 2007