• Journal of the Korea Society of Computer and Information
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• v.25 no.9
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• pp.91-100
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• 2020

This paper presents an evaluation framework for prototyping multimedia streaming services including audio and video in a distributed and/or decentralized storage that can evaluate service quality and performance under various network conditions. The evaluation framework focuses on important indicators which measure and improve service quality by applying decentralized storage to multimedia streaming services that can mimic the scalability of the existing server-client software architecture and the issue of a single point of failure. The integrated framework not only measures performance indicators for evaluating the quality and performance of multimedia streaming on open source based multimedia content streaming services, but also adjusts network quality using network virtualization technology for comprehensive evaluations. The experimental results show that the integrated framework has low overhead in building and operating a decentralized storage with multimedia streaming services on a single host computer which validates the scalability of the developed framework.

• Journal of the Korea Convergence Society
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• v.7 no.6
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• pp.297-305
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• 2016

The purpose of this study was to suggest the operational problems and improvement methods of the teacher aide system in Korean special education. To suggest the operational problems and improvement methods of the teacher aide system in special education, annual statistics for special education, annual reports for special education, annual operational plans for special education, and the Act on Special Education for the Disabled Persons, etc. were analyzed. The operational problems of the teacher aide system in special education included (1) the uncertainty of special education teacher aide's role, (2) the lack of cooperation between teachers and special education teacher aides, and (3) the lack of a specific guideline for the management of special education teacher aides. The improvement methods included (1) the legislation of special education teacher aide's role, (2) a training system to improve special education teacher aide's professionalism, and (3) the development of a specific guideline to use and manage special education teacher aides.

• The Journal of the Korea institute of electronic communication sciences
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• v.12 no.5
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• pp.737-746
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• 2017

In 2017, amid changes in the security market such as integrated security (IS) and convergence security (CS), a variety of security paradigms in terms of operation and management have been suggested. Rather than changing existing network infrastructure and bringing about fluid, multi-dimensional changes, these solutions and technologies focus entire security capacity on a primary protection, leading to network infrastructure suffering from unexpected inherent violations and problems in a continued manner. Therefore, it is time to propose and develop a flexible network section that can protect from attacks of similar pattern and concentrated traffic attacks by applying a new concept of WB (Water-Bubble) to network infrastructure and analyzing on the basis of experiment and installation. Methodology of the WB-based highly secure flexible network section proposed in this study is expected to provide materials for studies on how to achieve network section security taking into account three major limitations and security standards: fluidity, unpredictability, and non-area scalability by contact point ratio, by changing a network area predicted to be the final target of attack into resonant network section (area) with flexible area changes.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.10
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• pp.3658-3665
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• 2010

As the population of elderly people and disabled people are increased, various demands for human welfare using robot system are raised. Especially autonomous rehabilitation system using robot could reduce the human effort while maintaining the its intrinsic efficacy. This study deals with mobile gait rehabilitation system which combined with BWS (Body Weight Support) for training of elderly and handicapped people who suffer the muscle force weakness of lower extremity. BWS which is designed by kinematic analysis of body lifting characteristics and walking guide system are integrated with main control system and wheeled platform. This mobile platform is operated by UCS (User Command System) and autonomous trajectory planning algorithm. Finally, through the EMG (Electromyography) signal measuring and its analysis for subject, performance and feasibility of developed system is verified.

• Korean Journal of Psychosomatic Medicine
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• v.8 no.2
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• pp.149-164
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• 2000

Somatization is regarded as a process rather than a diagnostic entity. It should be emphasized to identify psychopathology rather than to make a choice regarding diagnosis in assessing somatizing patients. Psychiatrists should be aware of the psychosocial cues underlying the patients' physical symptoms. Special skills and strategies are required by nonpsychiatric physicians to facilitate the patients' acceptance of psychiatric treatment. The goal of treatment for somatization is management but not cure. The approach should be flexible, depending on the patients' responses and need. The difficulty in diagnosing and treating somatization is likely to be related to abnormal illness behavior such as the patients' denial of their psychosocial problems and resistance to psychiatric approach. In conclusion, biopsychosocial approach is needed to treat these patients effectively. Psychiatrists should also teach other physicians the interview skill that they could identify these patients as early as possible and facilitate their acceptance of psychiatric treatment.

• The Journal of the Korea Contents Association
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• v.16 no.6
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• pp.354-364
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• 2016

With the advancement of the digital convergence of content and platform, Korean film industry sees good opportunities of maximizing the profits and increased distribution opportunities by independent film makers. Nevertheless, the domestic film market almost entirely relies on the box office sales, which seems to be caused by the stagnation of new additional copyright market. The study aims to address the following problems: First, information asymmetry of the revenues to which the contents providers and the service providers are exposed leads to the distrust among digital film contents businesses and the disadvantages to film makers and investors, in particular. Secondly, the VOD(Video on Demand) market of film industry is adversely affected by the illegal uploads and downloads of film contents, which harms the formation of paid additional market. Based on the examination of current legislation and policy options addressing these issues, the study suggests legislative accomodations and cultural industry policy alternatives to promote the additional market of film industry.

• Korean Journal of Psychosomatic Medicine
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• v.4 no.1
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• pp.138-145
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• 1996

The behaviors associated with illness are different depend upon individuals even if Patients complaints same symptoms and have same disease. Understanding the patterns of those behaviors become one of the important elements in determining the diagnostic and treatment approaches and treatment compliance. The sick role plays a essencial part in abnormal illness behavior. The characteristics of abnormal illness behavior ran be applied to many parts in medicine. In case of the various kinds of functional disorders whose organic foundations are obscure and in applying the cognitive therapy, rehabilitation program and occupational therapy, the assessment and evaluation of the abnormal illness behvior is known to be beneficial. For improving the comprehensive psychiatric treatments which could be applied to the Koreans more effectively in patients with somatoform disorders and other various kinds of neurotic disorders further researches especially on the medico-historical and socio-cultural aspects of the illness behavior should be followed. And understanding the abnormal illness behavior would be helpful in enhancing the medical cost effectiveness.

• The KIPS Transactions:PartC
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• v.8C no.4
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• pp.421-428
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• 2001

위성통신 시스템은 기존의 지상망이나 광 케이블 기술에 비해 통신 대역폭의 유연성과 다중 접속 능력, 이동 통신, 광역성, 멀티포인트 및 브로드캐스팅 등의 고유의 특징으로 인해 초 고속 정보 통신망 구축에 중요한 역할을 할 것이다. 또한 위성통신은 앞으로 도래할 브로드 캐스팅 및 멀티미디어 서비스 등의 통신환경을 지원하며, 지상중계망의 장애 및 트래픽 폭 주시에 대체경로를 제공함으로써 지상망 중심으로 진화·발전되어 온 B-ISDN망과 상호 보 완적인 보완망으로서의 역할을 수행할 것이다. 따라서 지상 B-ISDN과 위성망의 통합은 지 상망의 효율성고 안정성을 향상시킬 수 있을 뿐만 아니라 국가의 모든 통신망을 하나의 정 보 통신망으로 구성하여 국가의 정보를 효율적으로 이용, 관리 및 운용할 수 있기 때문에 위성망과 B-ISDN간의 연동에 대한 연구는 필수적이다. 본 논문에서는 OBP(On-Board Processing) 탑재 위성 B-ISDN 중계망의 호 처리 절차 연구를 수행하는 것으로서, 위성 B-ISDN 구조와 각 지구국별 신호 기능 및 B-ISDN 신호 시스템인 DSS2(Digital Subscriber Signalling No.2) 계층 3 신호 프로토콜, B-ISUP(B-ISDN User Part) 프로토콜, S-BISUP(Satellite BISUP) 프로토콜의 구조를 분석하였다. 또한 점-대-다지점 연결을 위한 B-ISDN의 연결과 소유권 및 각각의 프로토콜에 대한 메시지와 프리미티브를 정의하여, 이 를 토대로 OBP 탑재 위성 B-ISDN 중계망 연동을 위한 기본 호 처리 절차를 설계 및 검증 하고, 이를 구현하였다.

• Perspectives in Nursing Science
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• v.15 no.1
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• pp.29-40
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• 2018

Purpose: The present study aimed to review the characteristics of cognitive behavioral therapy (CBT) programs for alcohol use disorders and to examine the outcomes of such programs. Methods: We searched for domestic and foreign studies that implemented a CBT program for alcohol use disorders, published from 2006 to 2017. Studies that met inclusion/exclusion criteria were selected and a quality assessment was performed using the Risk of Bias (RoB) and Risk of Bias Assessment Tool for Nonrandomized Studies (RoBANS) instruments. We utilized a five-stage analysis process, through which nine experimental studies were selected. Results: Of these nine studies, four were randomized controlled trials, four used a quasi-experimental design, and one used a qualitative design. The CBT involved the three domains of cognitive reconstruction, problem solving, and coping. Coping with drinking situations and communication constituted most of the sessions. The outcomes of such interventions showed that CBT had a positive effect on alcohol use and self-evaluation. Conclusion: CBT is an effective way to change alcohol use behaviors, motivation, interpersonal relationships, emotional control, and self-efficacy among patients with alcohol use disorders. This study provides evidence for the effectiveness of CBT-based programs for the treatment of alcohol use disorders.

• Journal of Animal Environmental Science
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• v.8 no.1
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• pp.25-34
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• 2002

In view of increasing environmental pollution, the organic farming in animal production is becoming increasingly urgent. The problems of veterinary medicine have not diminished through the most dangerous epidemic diseases. Organic farming attempts to function in harmony with the environment. The first criterion of the organic farm is that the animal must be self-sustaining. Their food must be produced to a large extent on the farm. The position of ruminants in biological systems is determined by the fact that this group of farm animals is provided with a digestive system which optimizes the utilization of the products of gut microfloral fermentation. The cattle do not require large amounts of concentrate feeling nor gross ugly farm building for intensive rearing. The economic profitability of a cow depends. on the first instance, on the level of milk production and the number of lactations. The length of life is an important factor since the tilde to maturing is relatively high in a cow. The result is that dairy cows in organic farming have greater length of live, and produce more milk in their life time than the shorter lived high input cow. This paper. therefore, discussed the problems of modern cattle farming and development trends of organic farming in Germany and Korea.