• Journal of the Korea Institute of Military Science and Technology
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• v.8 no.3 s.22
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• pp.73-82
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• 2005

This paper describes shock waveform synthesis methods for a shock response spectnlm over a short time interval with which intereference between parts within a test item is increased to perform a sufficient shock test for damage or malfunction which may be caused by the interference between parts, and a digital filter for obtaining a shock response history required for the shock waveform synthesis and a digital inverse filter for restoration by inversely using the digital filter. The time at which the maximax value occurs in the response history is detected in order to establish a delay time which is one of the parameters in the wavelet, on the condition that the natural frequency of SDOF system with a Q (quality factor) of 10 equals to the wavelet frequency of the zero delay wavelet input. A shock response spectrum over a short time interval and an abrupt change in the acceleration for an instant are illustrated as features of the synthesized waveform.

• Proceedings of the IEEK Conference
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• 2003.07d
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• pp.1479-1482
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• 2003

MPEG-21 Part 7(Digital Item Adaptation)은 멀티미디어컨텐츠를 사용자 환경 및 사용자 특성에 적응 적으로 활용/소비하기 위한 표준이다. 본 논문에서는, 영상컨텐츠의 적응적 컬러 재생에 관련하여 MPEG-21 DIA 내에서 표준화가 진행중인 조명환경 기술자(Descriptor)와 컬러 선호성 기술자를 소개하고 이들의 활용에 관해 논한다.

• Proceedings of the IEEK Conference
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• 2003.07d
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• pp.1451-1454
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• 2003

본 논문에서는 MPEG-21 에서 정의한 디지털아이템의 파일 포맷의 구조 및 방법을 멀티미디어 파일 포맷으로 제안하였다. 제안한 방법은 디지털아이템을 이진화하는 방법 및 기능, XML로 구성된 디지털아이템 선언(Digital Item Declaration)에서 미디어 리소스를 참조하는 방법 등이다. 제안한 멀티미디어 파일 포맷은 디지털방송, 무선통신, 인터넷 환경에서의 다양한 형태의 컨텐츠들을 효과적이고 체계적으로 조합할 수 있는 기능 및 효과적인 전송 기능을 제공하며, 향후 xml 기반 메타데이터와 미디어리소스를 포함하는 멀티미디어 컨텐츠의 파일 포맷에 대한 참고 모델로서 사용될 수 있다.

• Proceedings of the Korea Multimedia Society Conference
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• 2002.11b
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• pp.408-411
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• 2002

본 논문에서는 MPEG-21 프레임 워크상에서 이용되는 기본 단위인 디지털 아이템을 생성하는 디지털 아이템 생성기의 구현에 대하여 논하였다. 디지털 아이템은 MPEG-21 표준에 정의된 디지털 아이템 선언에 기반하여 생성하였으며, 제작된 디지털 아이템 생성기의 유효성을 확인하기 위해 방송용 컨텐츠에 대해 적용하였다. 이 생성기는 MPEG-21 프레임워크 기반 시스템에 적용이 가능하다.

• Journal of Korea Society of Digital Industry and Information Management
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• v.12 no.3
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• pp.11-24
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• 2016

The purpose of this study is to develop a recruiting platform resolving the mismatch between corporate job and job finder's competence in recruitment market. For this, we investigated technological trends and limitation on recruit platform. Based on the findings, this study investigates the trends and directions related to recruiting platform evolution and identified critical success factors and development strategies for successful development of recruiting platform. Two development strategies include employment of online resume and construction of database assessing job finder's competence. We also proposed target system architecture incorporating job database, competency assessment form, capability oriented resume. To analyze user requirement national competency standards and core job capability evaluation model were analyzed. Next, we designed integrated database, user interfaces, and dynamic functionalities using the forms developed in earlier stage. Finally, we assessed the fidelity of form item, integrity of database, and the usability of interface to evaluate the effectiveness of the system.

• Proceedings of the IEEK Conference
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• 2003.07d
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• pp.1419-1422
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• 2003

Multimedia contents what we call Digital Items include various types of resources such as music, speech, text, video, graphics, and so on. The current Adaptation QoS described in the ISO/IEC 21000-7 CD-Part 7: Digital Item Adaptation, however, lacks adaptation methods for audio signals. The goal of this paper is to provide adaptation methods that are necessary to deal with audio signals. Two operations are introduced in order to adapt audio items. One method is to make use of the functionality of Fine Grain Scalability, and the other is intended to drop the channel of audio output channel. This paper provides a DIA description tool that associates the operators with the corresponding values of the constraint and the utility. Furthermore, the operations are evaluated and compared to alternative solutions.

• Journal of The Korean Digital Architecture Interior Association
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• v.2 no.1
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• pp.32-38
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• 2002

Hanyang woman's college educational facility general planning presents "Long-term and expansive space organization plan" of Hanyang woman's collage to correspond to sudden decline and "Globalization specialization" of "Matriculation competition rate by school age decrease in population" but there is primary purpose. To detailed item, secure "Flexibility of campus space by learning environment change" and studies and examines "Campus ashes construction plan by step by new earth purchase" we wish to propose "Long-term and systematic synthesis master plan" and "Newly-appointed official and present official new construction plan".

• Journal of Korea Society of Digital Industry and Information Management
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• v.11 no.1
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• pp.47-57
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• 2015

Recently, Internet of Things (IoT) have become popular for research and development in many areas. IoT makes a new intelligent network between things, between things and persons, and between persons themselves. Social network service technology is in its infancy, but, it has many benefits. Adjacent users in a social network tend to trust each other more than random pairs of users in the network. In this paper, we propose recommendation technique using social network in Internet of Things environment. We study previous researches about information recommendation, IoT, and social IoT. We proposed SIoT_P(Social IoT Prediction) using social relationships and item-based collaborative filtering. Also, we proposed SR(Social Relationship) using four social relationships (Ownership Object Relationship, Co-Location Object Relationship, Social Object Relationship, Parental Object Relationship). We describe a recommendation scenario using our proposed method.

• Journal of Korea Society of Digital Industry and Information Management
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• v.6 no.4
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• pp.193-198
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• 2010

Smart phone systems such as Android and iPhone are spreading into the next generation's computing and the prediction that cell phone (especially smart phone) penetration rate will be higher than that of PC in the near future is predominant. In this paper, we designed and materialized an item pool system which has self directed learning function that enables learning with smart phone (the PC in the hand). Users can choose the way of studying and do the offered estimation depending on their levels with smart phone. It is materialized the studying environment which can be done immediately anytime and anywhere.

• Journal of Digital Convergence
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• v.7 no.1
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• pp.175-183
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• 2009

With the development of enabling technologies such as wireless networking and various types of hand held-mobile devices, Mobile intelligent agent has been widely applied to various fields. Different views on capabilities, advantages, and disadvantages of mobile intelligent agent providing an ubiquitous access are brought by field researchers and practitioners recently. The purpose of this paper is thus to provide the discussion of the comtemporary development of mobile intelligent agent in the contexts of the Infosphere, focusing especially on developing and nurturing the future research grounds such as information scalability, and information security. The results of this study would improve the applications of mobile intelligent agents in web transaction, especially mobile business surroundings where many interest groups have to adjust their point of issues rapidly due to the changing business environment, i.e., customer's change the order item in web.