• Proceedings of the Korean Information Science Society Conference
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• 2007.10d
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• pp.100-103
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• 2007

소프트웨어가 증가하면서 소프트웨어에서 발생되는 프로그램의 오류도 증가하게 되었고, 이런 프로그램 오류를 해결하기 위한 패치도 증가하게 되었다. 하루가 다르게 급수적으로 증가하는 패치를 효율적으로 관리하기 위해서 관공서나 기업에서는 패치를 별도로 관리할 수 있는 패치 관리시스템을 구성하여 운영하고 있으며, 학교 및 연구기관에서는 안전하게 패치가 분배될 수 있도록 연구를 진행하고 있다. 하지만, 기존의 연구는 안전한 패치분배에 집중되고 있으며, 급수적으로 늘어나는 패치를 효율적으로 관리할 수 있는 방안에 대해서는 연구가 부진한 것이 현실이다. 본 논문에서는 다양한 패치를 효율적으로 관리할 수 있는 범용적 패치관리 데이터베이스를 제안한다.

• Proceedings of the KSR Conference
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• 2004.06a
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• pp.501-506
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• 2004

This paper aims to suggest the feasibility of rapid operation scheme generated in preceding study, 'A study on development of operation planning for rapid service in urban railway(An introduction)' through application it to present subway lines in Seoul Metropolitan area. In case of line 3, without the Passing Track 'Turning train outstrip mode' is the best policy. In case of line 4, with the Passing Trank 'Passing track mode' may be the best way to realize the this scheme. Also, there is feasibility in the line 1, line 5, line 6, line 7 but there is no possibility it is applied to line 2 and line 8. In conclusion, this paper is intend to suggest the possibility of rapid operation in urban railway by presenting real operation scheme, time tables and amount of power usage and the number of composing trains and variety of demand,

• Proceedings of the KSRS Conference
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• v.2
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• pp.578-581
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• 2006

Usually to achieve precise geolocation of satellite images, we need to get GCPs (Ground control points) from individual scenes. This requirement greatly increases the cost and processing time for satellite mapping. In this article, we focus on finding appropriate sensor models for entire image strips composing of several adjacent scenes. We tested the feasibility of modelling whole satellite image strips by establishing sensor models of one scene with GCPs and by applying the models to neighboring scenes without GCPs. For this, we developed two types of sensor models: collinearity-based type and orbit-based type and tested them using different sets of unknowns. Results indicated that although the performance of two types was very similar, for modelling individual scenes, it was not for modelling the whole strips. Moreover, the performance of sensor models was remarkably sensitive to different sets of unknowns. It was found that the orbit-based model using attitude biases as unknowns can be used to model SPOT image strips of 420 Km in length.

• English Language & Literature Teaching
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• no.4
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• pp.1-14
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• 1998

The present paper explores rationales for the process-oriented approach to teaching writing and their implications for EFL writing classes. The product-oriented traditional approach to writing has put too much emphasis on linguistic aspects of writing. It fails to see the enormous complexity of the act of composing. In the process-oriented paradigm, writing is regarded as a messy process leading to clarity and the writer discovers meaning instead of merely' finding an appropriate structure in which to package ideas already developed from the beginning. Based on the underlying assumptions, some suggestions are made for EFL writing classes. Firstly, practitioners should be aware that writing is a recursive activity in which the writer moves backward and forwards between drafting and revising, with stages of re-planning in between. Secondly, writing teachers should help the student writers build an awareness of themselves as a writer and encourage their sense of confidence in writing. Lastly, students should be encouraged to pay their attention to content revision at first, and delay editing changes until the last draft.

• 제어로봇시스템학회:학술대회논문집
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• 2005.06a
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• pp.486-491
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• 2005

There come various types of robot with researches for mobile robot. This paper introduces the multi-joint snake robot having 16 degree of freedom and composing of eight-axis. The biological snake robot uses the forward movement friction and the proposed artificial snake robot uses the un-powered wheel instead of the body of snake. To determine the enable joint angle of each joint, the controller inputs are considered such as color and distance using PC Camera and ultra-sonic sensor module, respectively. The movement method of snake robot is sequential moving from head to tail through body. The target for movement direction is decided by a certain article be displayed in the PC Camera. In moving toward that target, if there is any obstacle then the snake robot can avoid by itself. In this paper, we show the method of snake robot for tracing the target with experiment.

• International Journal of Internet, Broadcasting and Communication
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• v.7 no.2
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• pp.84-89
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• 2015

About 30% of Mongolian population is populated in the capital of the nation. Too many hospitals are concentrated in size as compared to the capital. This creates a difficult environment to provide equal distribution of medical benefit. In order to resolve this issue of medical benefit inequality, a portable/travelling medical treatment system using 'M-LIMS' is proposed for real-life application. The system with M-LIMS to be designed will include functions such as composing, sharing charts among doctors, standardizing charts. M-LIMS will be designed considering Mongol's regional characteristics, and application plans will be proposed accordingly.

• Convergence Security Journal
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• v.7 no.1
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• pp.11-17
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• 2007

This paper related to implementing issue and performance measuring about blended mechanism between networking technology and security technology. We got more effectiveness in overall network security, when applying and composing amalgamated security mechanism between network technology and security technology. The blended method offers $8{\sim}10%$ effective result in network security than the isolated ways of applying relational two technologies. As a result, we suggest amalgamated security mechanism between network technology and security technology, and also, we propose the blended method as a model of more effective way.

• Proceedings of the Korea Concrete Institute Conference
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• 2006.05b
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• pp.213-216
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• 2006

As form a part of way to improve the durability of concrete placed on deleterious environments such as acidic rivers, sewage wastewater, and sewer system, the paper presented here is the results of experimental immersion test, and for the test solution, 4 types sulfuric acid solution was prepared. From the result of EDS analysis of cement paste at 180 days of immersion, the detected major chemical elements were Ca and S and they are assumed as composing elements of gypsum. A comparative study between prediction models from the Japanese Standard and the present study corresponding to $d=C\sqrt{t}$ and $d=\alpha{\cdot}t^n$ respectively accorded well with each other, as being 0.98 of determination coefficient.

• Journal of information and communication convergence engineering
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• v.6 no.1
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• pp.59-63
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• 2008

The methods or algorithms which can accelerate simulation speed became of great importance, as the modeling and simulation methodology for discrete event systems is used in many areas such as model validation/verification and performance evaluation. This paper proposes a tool named, DEVSIF composer. The tool is made of an automated compiled simulation technology and it builds a new composed model which can be executed much fast by composing the component models together. Models are described by our new specification language DEVSIF, which is compatible with object-oriented language and supports representation of a hierarchical model structure. Experimental results demonstrates that DEVSIF composer enhances the simulation speed of a transformed DEVS model 5 times faster than that of the original ones in average.

• Proceedings of the KIEE Conference
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• 1989.11a
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• pp.231-234
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• 1989

In recent, due to the advanced development of the power semiconductor devices, the Digital Simulation becomes essential in order to investigate the behavior of the system before the manufacturing of the system by using computer for design and analysis of Power Electronic systems. This paper develope the program so-called PECA, which can be applied for the Power Electronic circuits composing of power transistors, thyristers, GTOs and power FET, etc. We consider transistor DC chopper circuit and prove the effectiveness of our program by both the experiment and simulation.