• The KIPS Transactions:PartA
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• v.8A no.1
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• pp.70-74
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• 2001

A general web-based remote lecture system uses video data and audio data to provide synchronize between teacher and students. This system requires high bandwidth, high speed networking, television, compression and computing technologies between server and client for remote lecture over Internet. As a result, this system can decrease an efficiency for lecturing over current Internet. So, this paper proposes a new mechanism calling as ‘Synchronization of WWW browsers between server and client’to cope with above problems and finally pursues low cost needed for real-time remote lecture over Internet. The mechanism means that every browser of teacher and students displays the same page and the action of teacher is transferred to the browser of student. And, this can be implemented by Windows hooking APIs, Memory Mapping, and DLL (Dynamic Link Library) programming technology. This paper points to the design and implementation of LAS (Lecture Assistant Server) and LAC (Lecture Assistant Client) to perform the synchronization between server and client.

• Proceedings of the KIEE Conference
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• 1998.07g
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• pp.2405-2407
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• 1998

Implementation of a process control language for a pager manufacturing is dealt in this paper. The pager manufacturing process is consisted of a tune and an exam part. In the tune part, three capacitor trimmers are tuned to optimize the state of the pager. In the exam part, message receiving status with the arbitrary calling is tested using a vision system. The program has the ability to reuse the address discarded in the exam part when the, pager testing is not working properly even though there exist the processing gaps between two processes. The system is composed of a personal computer(PC586) and TEM-cells, Flex pager testers, an oscilloscope, a camera, and actuators. Visual Basic running on the Windows 95 is used to implement the control software which has the GUI to make an operator convenient. The validity of applying the completed program to practical machines, which are developing in the KITECH, is shown by using the virtual machine.

• Journal of Digital Convergence
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• v.1 no.1
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• pp.213-234
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• 2003

"Trust" becomes a focal issue in e-business. Unlike traditional business environment, virtual situation requires new trust-ensuring mechanism other than face-to-face meetings and other related means of confirmation. Many countries are trying to foster trust services industry in order to increase e-business transactions and activities. This paper compares and contrasts these countries' policies on trust services. Conclusions of this comparative research includes: (1) trust services industry will be tightly integrated horizontally and increase their scope vertically towards trust in business sense over and beyond the mere technical level trust, (2) necessity of reciprocal trust authentication exchange is calling for an international standard in a near future, and (3) two different types of policies are under development: government-led and industry-led. Advantages and disadvantages of different approaches are presented with details of legal implications and structures of operations.

• Korean Medical Education Review
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• v.19 no.3
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• pp.129-133
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• 2017

Premed education in the college of medicine at the Catholic University of Korea aims to promote student creativity and excellence in accordance with the mission of the college: to have a sense of calling, leadership, and competency. The Catholic Medical College premed curriculum includes 75 credits which are composed of 65 credits for required courses and 10 credits for elective courses. It consists of courses in basic science, medical science, liberal arts and humanities (premedical OMNIBUS). It also involves community programs in 'Vision and Mission,' 'Leadership Training,' and 'Academic Conference.' In addition, students are allowed self-directed choice of their courses and learning for one quarter.

• Journal of Korea Society of Industrial Information Systems
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• v.18 no.1
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• pp.1-9
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• 2013

Most calls of a called user are invoked by the group of calling users. This call pattern is defined as call locality. Similarly Internet sessions including IP telephony calls have this pattern. We define it session locality. In this paper, we propose a caching scheme to support session locality in hierarchical SIP networks. The proposed scheme can be applied easily by adding only one filed to cache to a data structure of the SIP mobility agent. And this scheme can reduce signaling cost, database access cost and session setup delay to locate a called user. Moreover, it distributes the load on the home registrar to the SIP mobility agents. Our performance evaluation shows the proposed caching scheme outperforms the hierarchical SIP scheme when session to mobility ratio is high.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.36 no.3B
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• pp.231-239
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• 2011

This paper reviews the recent theoretical and empirical studies on the European countries that the bill and keep settlement between mobile operators is superior to the financial settlement like CPNP from the perspectives of social welfare and fare competition in market. Besides these the recent studies, considering the change of mobile wholesale market in Korea, the necessity to introduce the bill and keep settlement as an alternative for the current CPNP as well as policy implication is examined.

• The Journal of the Korean dental association
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• v.15 no.2
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• pp.107-110
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• 1977

Class I malocclusion is essentially a dental dysplasia. Rotations, individual tooth malpositions, missing teeth, tooth size discrepancies, etc., fall under this classification. There are two types of class I malocclusions. One is identified by and insufficient denture base to accommodate the teeth; the other has more denture base than tooth material, creating spaces in the arch. The tooth material-to denture base discrepancies may be slight, calling for only a little increase in arch length for alignment and the correction of minor rotations. Discrepancies may also be great, in which case it becomes necessary to reduce tooth material by extraction, so as to make the tooth material more in proportion to the size of the denture base. The author had attempted orthodontic treatment of a class I malocclusion case of 13-year old boy in which high canines and impacted mandibular second premolars were involved. The author obtained good results.

• Journal of Information Technology Applications and Management
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• v.13 no.2
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• pp.29-39
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• 2006

There has been a tremendous need for dual homing cell switch assignment problems where calling volume and patterns are different at different times of the day. This problem of assigning cells to switches in the planning phase of mobile networks consists in finding an assignment plan which minimizes the communication costs taking into account some constraints such as capacity of switches. This optimization problem is known to be difficult to solve, such that heuristic methods are usually utilized to find good solutions in a reasonable amount of time. In this paper, we propose an evolutionary approach, based on the genetic algorithm paradigm, for solving this problem. Simulation results confirm the appropriateness and effectiveness of this approach which yields solutions of good quality.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• v.2
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• pp.157-164
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• 2006

This paper addresses the design of container liner shipping service networks by explicitly taking into account empty container repositioning and container fleet size. Two key and interrelated issues of deployments of ships and containers are usually treated separately by most existing studies on shipping network design. In this paper, both issues are considered simultaneously. The problem is formulated as a two-stage problem: the upper-problem being formulated as a Knapsack problem and the lower-problem as a Flow problem. A genetic algorithm based heuristic is developed for the problem. Through a number of numerical experiments that were conducted it was shown that the problem considering empty container repositioning provides a more insightful solution than the one without.

• Proceedings of the Korea Information Processing Society Conference
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• 2001.10a
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• pp.723-726
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• 2001

본 논문은 흑백 영문 명함 영상에서 개별 문자 추출에 관한 연구이다. 20개의 원본 명함 영상을 3배로 축소하고, 가로 세로 스미어링 기법을 이용하여 문자간의 여백을 제거하여, 문자 영역의 추출을 용이하게 하였다. 그리고, 윤곽선 추적 기법을 이용하여 문자열과 개별 문자를 추출하였다. 실험결과에서는 윤곽선 추적 알고리즘을 이용한 명함의 개별 문자 추출이 효과적인 것을 보인다.