• The Journal of Pediatrics of Korean Medicine
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• v.15 no.2
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• pp.111-119
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• 2001

Tic disorder which is purposeless, repeated, unexpected, involuntary behavior and voice can be divided into motor, vocal tic. Tic disorder belongs to pediatic psychosomatic disease. In four clinical cases, patients between the age of 6 to 15 consisted of three males and one females. They all are the eldest or only son and have the parental behavioral, home background and studing problem. The patients appealed to eye blinking in tic early stage and belong to chronic motor or vocal tic disorder or transient tic disorder without tourette's disorder. When estimated by an appraisal standard of Yale Global Tic Severity Scale(YGTSS). Four patients administered Bosimgeunatang known to invigorating the heart, relieving mental stress improved.

• Proceedings of the Korean Information Science Society Conference
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• 2001.10c
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• pp.388-390
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• 2001

인터넷을 통해 음성 서비스를 가능하도록 해주는 VoIP (Voice over IP) 기술은 다양한 멀티미디어 기술과 결합하여 차세대 이동 통신망에서 핵심적인 서비스로 발전할 것이다. 하지만 차세대 이동 통신망에서는 다양한 단말기와 엑세스망 기술이 지원될 것이기 때문에 서로 다른 통신 능력을 가진 사용자 사이에서 직접적인 세션 설정이 불가능한 다양성의 문제(Diversity Problem)가 발생할 것이다. 이러한 다양성의 문제를 해결하기 위해서는 사전에 미디어 협약 (Media Negotiation)이라고 하는 과정을 거쳐야 한다. 기존의 SIP(Session Initiation Protocol) 기반의 VoIP 시스템에서는 이미 미디어 협약 과정이 정의되어 있지만 많은 세션 설정 시간이 소비되는 단점이 있다. 본 고에서는 이러한 단점을 개선하여 효과적인 미디어 협약이 가능하도록 해주는 SIP 기반 의 새로운 VoIP 아키텍쳐를 제안한다. 개선된 YoIP 아키텍쳐는 기존의 아키텍쳐 상의 지역 도메인 내의 기존 요소를 확장하여 구현 가능하기 때문에 높은 상호 호환성과 개발의 용이성을 지닌다. 이러한 새로운 VoIP 아키텍쳐의 구현을 통한 세션 시간 측정 결과 기존의 아키텍쳐에 비해 50%이상의 세션 설정 시간이 단축됨을 알 수 있었다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.17 no.6
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• pp.1370-1374
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• 2013

The suitcase can follow its owner all on its own via the Bluetooth connectivity in your phone. A robotic vacuum cleaner than can understand voice commands and even follow homeowner. Robots are used in a variety of applications such as a robot wheelchair. In this paper, I focus the problem of automatic return to the base in the process of developing the moving robot for loading things. In this paper, I propose the indoor localization method which is able to determine the position of the robot in the building by using image processing techniques.

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 2004.04a
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• pp.491-494
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• 2004

Neural Oscillator can be applied to oscillatory systems such as the image recognition, the voice recognition, estimate of the weather fluctuation and analysis of geological fluctuation etc in nature and principally, it is used often to pattern recoglition of image information. Conventional BPL(Back-Propagation Learning) and MLNN(Multi Layer Neural Network) are not proper for oscillatory systems because these algorithm complicate Learning structure, have tedious procedures and sluggish convergence problem. However, these problems can be easily solved by using a synchrony characteristic of neural oscillator with PLL(phase-Locked Loop) function and by using a simple Hebbian learning rule. And also, Recognition velocity of Korean Character can be improved by using a Neural Oscillator's learning accelerator factor η$\_$ij/

• English Language & Literature Teaching
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• v.12 no.2
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• pp.19-40
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• 2006

This paper deals with a part-specific analysis of grammatical errors in the production of the English passive in writing. The purpose of the study is dual: to explore common error types in forming the passive; and to provide plausible sources of the errors, with special attention to the role of the native language. To this end, this study obtained a large amount of data from Korean EFL university students using an essay writing task. The results show that in forming the passive sentence, errors were made in various ways and that the most common problem was the formation of the be-auxiliary, in particular, the proper use of tense and S-V agreement. Another important finding was that the global errors found in this study were not necessarily those with the greatest frequency. Also corroborated was the general claim that many factors work together to account for errors. In many cases, interlingual and intralingual factors were shown to interact with each other to explain the passive errors made by Korean students. On the basis of the results, suggestions are made for effective and well-formed use of the passive sentence.

• Proceedings of the IEEK Conference
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• 2002.06c
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• pp.131-134
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• 2002

As the increased use of computer, wired/wireless/mobile Internet, security in using Internet becomes a more important problem. Thus, biometric technology using physical and behavior characteristics of a person is hot issue. Many different types of biometric technologies of a person such as fingerprint, face, iris, vein, DNA, brain wave, palm, voice, dynamic signature, etc. had already been studied but remained unsuccessful because they do not meet social demands. However, recently many of these technologies have been actively revived and researchers have developed new products on various commercial fields. Dynamic signature verification technology is to verify the signer by calculating his writing manner, speed, angle, and the number of strokes, order, the down/up/movement of pen when the signer input his signature with an electronic pen for his authentication. Then signature verification system collects mentioned above various feature information and compares it with the original one and simultaneously analyzes to decide whether signature is forgery or true. The prospect of signature verification technology is very promising and its use will be wide spread in terms of economy, security, practicality, stability and convenience.

• Korean Management Science Review
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• v.13 no.3
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• pp.91-104
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• 1996

The basic idea of Quality Function Deployment(QFD) is to deploy the voice of customers into the final product through product planning, part planning, process planning, and manufacturing. In the product planning stage, which is the first stage of product development, customer attributes(CAs) are translated into engineering characteristics(ECs). Then, based on the relationship between CAs and ECs, the target values of ECs are determined. In the previous research, the process of analyzing these relationships is mostly subjective in nature. In this article, we formulate the process of determining the target values of ECs as an optimization model. That is, we first determine the relationship between CAs and ECs as cumulative logit models and construct constraints into which the company strategy as well as the needs of customers can be incorprated. Next, cost functions of ECs are developed, which are summed into an objective function. An algorithm to solve the formulated optimization problem is developed and illustrated with an example.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2013.05a
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• pp.340-342
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• 2013

The suitcase can follow its owner all on its own via the Bluetooth connectivity in your phone. A robotic vacuum cleaner than can understand voice commands and even follow homeowner. Robots are used in a variety of applications such as a robot wheelchair. In this paper, I focus the problem of automatic return to the base in the process of developing the moving robot for loading things.

• 제어로봇시스템학회:학술대회논문집
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• 2000.10a
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• pp.47-47
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• 2000

Most measuring devices are equipped with RS-232 or GPIB interface for communicating data with computers. If the measuring devices can be accessed by a server computer, the valuable information from the devices can be effectively shared with other computers via internet. But, if the measuring devices and the server computer are too far away, it is difficulty to directly connect them by RS232 interface. PSTN(Public Switched Telephone Network) refers to the world's collection of interconnected voice-oriented public telephone networks. Measuring computer system which is equipped with RS232 interface and modem for PSTN can be introduced to overcome the aforementioned distance problem, In this work, an internet based remote monitoring system which utilizes PSTN and VRML for 3-dimensional GUI is proposed.

• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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• v.22 no.1
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• pp.23-29
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• 2011

Laryngomicrosurgery is common procedure applying to benign laryngeal lesion. Suspension of the laryngoscope is a vital component of Laryngomicrosurgery. Suspension laryngoscopy allows for bimanual surgery and a stable operating platform. Little information is known about oropharyngeal & vocal fold complications of suspension laryngoscopy. Because laryngomicrosurgery is dependent upon suspension laryngoscopy, surgeons should fully understand the risks of suspension laryngoscopy to properly educate and care for patients undergoing suspension laryngoscopy. That is problem to allow otolaryngologist is embarrassing, for voice restoration surgery are not satisfied with the results. The authors reviewed mechanical and phonological complications after laryngomicrosurgery.