• The Journal of The Korea Institute of Intelligent Transport Systems
• /
• v.11 no.3
• /
• pp.48-54
• /
• 2012

The quality of real-time voice communication over Internet Protocol networks based on telematics is affected by network impairments such as delays, jitters, and packet loss. To resolve this issue, this paper proposes a receiver-based enhancing method of VoIP speech quality. The proposed method enables users to deliver high-quality voice using playout control and signal reconstruction, which consists of concealment of lost packets, adaptive playout-buffer scheduling using active jitter estimation, and smooth interpolation between two signals in a transition region. The proposed algorithm achieves higher Perceptual Evaluation of Speech Quality (PESQ) values and low buffering delay than the reference algorithm.

• Journal of Korea Game Society
• /
• v.15 no.3
• /
• pp.161-176
• /
• 2015

The purpose of this study was to examine the effects of a script intervention based on multimedia on the verbal and behavioral self-advocacy skill of elementary school students with disabilities. A multiple probe baseline design across subjects had been used with 4 students with intellectual disabilities. The results showed all participants showed significant increase of verbal and behavioral self-advocacy performance in asking for help, expressing one's opinions, and coping with violations, and the effects were maintained. The intervention was more effective for verbal self-advocacy than behavioral. Some suggestions for future study are discussed.

• Korean Journal of Psychosomatic Medicine
• /
• v.20 no.1
• /
• pp.32-39
• /
• 2012

Objective : Psychiatry in North Korea is believed to seem very different from psychiatry in South Korea. However, there is nearly no information regarding psychiatry in North Korea until now. Our study aimed to get information about North Korean psychiatry. Methods : Three North Korean defectors in South Korea, whose clinical experience as medical doctors in North Korea was over 10 years, were recruited. They underwent the semi-structured interview, content of which included the clinical experience with psychiatric patients, the details of psychiatry, the treatment of psychiatric patients, the stigma of mental illness, and the suicide, in North Korea. Results : In North Korea, psychiatric department was called as 49th(pronounced as Sahsip-gu-ho in Korean). Only patients with vivid psychotic symptoms came to psychiatric department. Non-psychotic depression or anxiety disorders usually were not dealt in psychiatry. The etiology of mental illness seemed to be confined to biological factors including genetic predisposition. Psychosocial or psychodynamic factors as etiology of mental illness appeared to be ignored. Psychiatry was apparently separated from political or ideological issues. The mainstay of psychiatric treatment is the inpatient admission and out-of-date therapy such as insulin coma therapy. Stigma over mental illness was common in North Korea. Suicide is considered as a betrayal to his/her nation, and has been reported to be very rare. Conclusion : The situation of psychiatry in North Korea is largely different from that of South Korea. Although some aspects of North Korean psychiatry are similar to psychiatry in former socialist countries, North Korean psychiatry is considered to have also its unique characteristics.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2018.10a
• /
• pp.656-659
• /
• 2018

통계적으로 일반인보다 청각장애인의 교통 사고율이 높은 것으로 나타나는데, 이는 청각 장애로 대표되는 차량을 포함한 위험 요소를 인식하기 힘든 상태나 조건에서 기인한다. 자동차가 접근하는 등의 소리를 듣지 못한다는 것은 결국 어떠한 위치에 위험요소가 존재하는지 인지하지 못함에 따라 사고로 이어질 가능성이 존재함을 의미하는데 이러한 문제점을 개선함과 동시에 대화중인 사람의 목소리를 시각화하여 정보를 제공함으로써 청각장애인으로 하여금 더 안전하고 쾌적한 삶을 누리게 하는 것이 청각장애인을 위한 사운드 정보 시각화 안경의 개발 목적이다. 위와 같은 배경을 통해 딥 러닝 기술에 기반하여 분류 과정을 거친 소리 정보의 판별을 통해 위험 요소를 인식한 후 시각화 하여 정보를 제공하는 디바이스를 제안한다.

• 한국정보교육학회:학술대회논문집
• /
• 2010.01a
• /
• pp.109-116
• /
• 2010

발달장애 아동의 특성상 교육활동의 효율성을 극대화하기 위하여 구체적인 자료 지원과 실제적인 학습이 가능한 현장체험학습 활동이 요구된다. 그러나 많은 장애요인 및 위험요소로 인해 장애아동의 체험학습이 이루어지기 어렵고, 이미 교실에서 학습된 지식이라 하더라도 실생활의 문제 상황에 적용하는데 어려움을 겪는다. 따라서 본 연구에서는 주어진 상황과 맥락 하에서 스스로 지식을 구성하고 적용하는 상황학습 이론을 기반으로 발달장애 아동의 기초학습 능력 및 사회성 향상을 위한 모바일 현장체험학습 지원 시스템을 설계하였다. 본 모바일 현장체험학습 지원 시스템의 특징은 다음과 같다. 첫째, 발달장애 아동의 구체적이고 실제적인 학습을 위해 현장 체험학습을 활성화 시키고 보다 효과적으로 운영 지원할 수 있다. 둘째, 상황학습 이론을 적용하여 단순한 지식의 습득 차원에서 머무르는 것이 아니라 실제적인 문제 상황에서 지식을 적용할 수 있는 능력을 키울 수 있다. 셋째, 시스템 설계시 장애인의 웹접근성 및 모바일 환경에서의 인터페이스의 특징을 고려하여 설계함으로써 장애아동이 학습 공간에 보다 쉽게 접근할 수 있다. 넷째, 학습 모듈별 반복 학습이 가능하여 발달장애 아동의 기초학습 능력 뿐 아니라 사회적 기능 향상에도 긍정적인 영향을 제공한다.

• Journal of the Korean Society for Library and Information Science
• /
• v.47 no.2
• /
• pp.5-24
• /
• 2013

Many students with disabilities at the university face difficulties in educational inequity, cultural isolation, information illiteracy, and discrimination in the broad range of campus activities. The biggest barrier is the lack or difficulty of access to knowledge and information needed for learning. Libraries, therefore, must not discriminate against students with disabilities and should ensure equal access to and use of information resources and services. This paper analyzed the satisfaction and requirements on facility and space services, direct and indirect services, total library service of students with disabilities based on the results of the survey and interview. This paper suggested ways to improve service satisfaction of students with disabilities in a university library.

• Sleep Medicine and Psychophysiology
• /
• v.4 no.1
• /
• pp.29-38
• /
• 1997

Dementia is defined as a syndrome which is characterized by various impairments in cognitive functions, especially memory function. Most of the diagnostic criteria for dementia include memory impairment as on essential feature. Memory decline can be present as a consequence of the aging process. But it does not cause significant distress or impairment in social and occupational functionings while dementiadoes. Depression may also be associated with memory impairment. However, unlike dementia, depression dose not cause decrease in delayed verbal learning and recognition memory. In dementia, different features of memory impairment may be present depending on the involved area. Memory impairment in cortical dementia is affected by the disturbance of encoding of information and memory consolidation, while memory imparnene in subcortical denentiy is affected by the disturbance of retrieval in subcortical dementia.

• The korean journal of orthodontics
• /
• v.29 no.1 s.72
• /
• pp.37-49
• /
• 1999

Forty-four females with normal temporomandibular joint were compared with fifty-one females with abnormal temporomandibular joint. An orthodontic study model and lateral cephalometric radiographic were used to investigate the relationship between TMD group and non-TMD group in long face patterns. The result were followed that ; 1. There were no significant in overbite and overjet amount. 2. A mandibular 1'st molar inclination and height to the mandibualr plane were more mesial inclined in TMD groups. 3. The functional factors, which were craniocervical posture , tongue posture and hyoid bone position, were no significant.

• Journal of The Korean Association of Information Education
• /
• v.14 no.4
• /
• pp.605-617
• /
• 2010

In this paper, in order to improve concentration of learning disorder students, m-ARCS model is proposed. The m-ARCS model is based on the ARCS model that is the existing representative motivation support model. The model is designed on mobile environment, and to provide motivation and concentration to learning disorder students by allowing students to engage in various real-life activities. Based on the proposed m-ARCS model, a mobile anchor program is designed and implemented. The followings are concluded after applying the mobile anchor program to learning disorder students. First, students are highly motivated and concentrated by the program. Second, students gain confidence by feeling of success during their study. Third, their basic study ability is improved via the mobile anchor program activities

• Journal of the Korean BIBLIA Society for library and Information Science
• /
• v.30 no.1
• /
• pp.145-180
• /
• 2019

This study was performed in order to derive components that users with disabilities demand first when using library services by analyzing the actual usages and demands of handicapped users according to different types of disabilities. The results of the study are as follows: First, the actual situation of library disabled users was analyzed according to types of disabilities. Second, the importance and satisfaction level of disability types were investigated for the main components of the library disability service. Third, major components of library services were analyzed using Borich's Needs Assessment Model for the disabled and ways of activating library services by types were suggested. Fourth, we analyzed the differences according to different purposes of use by the disabled within Borich's Model for the main items of library services. We also proposed a plan to meet the purpose of library use by each type. Fifth, we analyzed the differences by type of users in Borich's Model for the major items of library services and thus suggested solutions to improve library services by types of disabilities.