• Journal of Broadcast Engineering
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• v.21 no.3
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• pp.330-340
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• 2016

This paper explains about the structure of multiple sensorial media application format (ISO/IEC 23000-17), which is newly standardized as a project of MPEG-A. This format facilitates effective storage, playing, and management of media with multiple sensorial effects. The ISO base media file format from MPEG-4 Part 12 and sensory effect metadata (SEM) from MPEG-V Part 3 are used to composed the multiple sensorial media application format. In this paper, a fragmentation method to break a SEM XML document into valid SEM samples is presented. Several binarization methods to compress the SEM samples are compared and evaluated as well. The compression ratio and processing time using the MPEG-V binary representation and the Binary MPEG format for XML (BiM) are superior to the gzip compression.

• The Journal of Engineering Research
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• v.8 no.1
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• pp.87-95
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• 2006

Present time, the mobile telecommunication companies of our country are still using independence wireless internet platform. So, this carry many difficulties to the phone company and content provider company. Because even they develop one product and they must make it prepare for some platform of every mobile telecommunication companies. And this make the development more longer and more expensive. For this reason, SKT, LG telecom and KTF develop the new wireless internet platform named WIPI with ETRI. and the working is still go on and go ahead with propulsion. And if it come to reality, the WIPI will attached from much of attack such as hacking or virus. But some data exchange between mobile phone is so important as to flow. Thus, in this paper, we are design and implementation the data encryption system working at the WIPI in order to protect the data, we want to protect.

• Journal of the Korean Institute of Intelligent Systems
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• v.14 no.2
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• pp.207-215
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• 2004

The PLC programming by IEC1131-3 is hard to handle to ordinary users as well as professionals. Also it has not a generality, so that it couldn't be debugging some logic errors easily. In order to be adapted for such environment, In this paper, I have developed the ISPLC(Intelligent Agent System based Software Programmable Logic Controller). In ISPLC system, LD programmed by a user is converted to the C code which can be used in a commercial editor such as Visual C++. The detection of logical errors in C code is more effective than PLC programming itself. ISPLC provides the GUI-based interface in web environment and an easy programming platform to such beginners as well as professionals. The study of code conversion of LD to IL as well as IL to C is firstly tried in the world as well as KOREA. To show the effectiveness of the developed system, I applied it to a practical case, a real time traffic control system. ISPLC is minimized the error debugging and programming time owing to be supported by windows application programs.

• Journal of the Korea Society of Computer and Information
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• v.17 no.10
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• pp.107-116
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• 2012

The applying of semantic technologies that aim to let computers understand and automatically process the meaning of the interlinked data on the Web is spreading. In Semantic Web, understanding and accessing the associations between data that is, the meaning between data as well as accessing to the data itself is important. W3C recommended RDF (Resource Description Framework) as a standard format to represent both Semantic Web data and their associations and also proposed several RDF query languages in order to support query processing for RDF data. However further researches on the query language definition considering the semantic associations and query processing techniques are still required. In this paper, using the suffix array-based indexing scheme previously introduced for RDF query processing, we propose a query processing approach to handle ${\rho}$-path query which is the representative type of semantic associations. To evaluate the query processing performance of the proposed approach, we implemented two different types of query processing approaches and measured the average query processing times. The experiments show that the proposed approach achieved 1.8 to 2.5 and 3.8 to 11 times better performance respectively than others two.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.26 no.4
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• pp.374-380
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• 2015

With explosion of wireless traffic it is required to further investigate the technologies on acquiring available spectrum resources and on sharing frequency with existing users. In 3GPP, it is started to study on feasibility and functional requirement of LTE standard in order to extend cellular services offered on only licensed band to 5 GHz unlicensed band. Operating scenario on LTE in unlicensed band is focused on carrier aggregation with licensed band, and the coexistence with Wi-Fi services in 5 GHz band is concerned as a major requirement. For a single global solution framework for licensed assisted access to unlicensed spectrum, listen-before-talk(LBT) mechanism of European regulation for fair access to channel under the coexistence environments is currently examined in 3GPP. In this paper, we evaluate two types of LBT, frame based equipment and load based equipment, with considering LTE carrier aggregation feature and performances of file transferred time and throughput.

• The Journal of the Convergence on Culture Technology
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• v.4 no.1
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• pp.241-252
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• 2018

This study explored the life of social workers by applying the photo Voice research method. Participants selected three themes through group discussions and shared the daily life of a social worker through photos they prepared in relation to each topic. Through this process, they shared their own experiences on 'difficulties related to work activities,' 'factors that create positive aspects that motivate social workers,' and 'factors that create negative aspects that demotivate social workers.' Using these three themes and 11 sub-themes, the participants shared their own experiences as social workers in the workplace. In order to improve the quality of life of social workers, we proposed amendments to related laws such as the Labor Standards Act, and also proposed legislative and institutional measures such as the enactment of policies related to personal safety threats.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.11 no.9
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• pp.1694-1701
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• 2007

Recently The biggest three mobile telecommunication companies of our country still using independence wireless internet platform. And, It can so many difficulties to the phone company and content provide company. Such as the timing of the development or the fee of the development. Because even they develop one product and Hey must make it prepare for some platform of every mobile telecommunication companies. And this make the development more longer and more expensive. For this reason, SKT, LG telecom and KTF develop the new wireless internet platform named WIPI with ETRI. and the working is still go on and go ahead with propulsion. And if it come to reality, the WIPI will attached from much of attack such as hacking or virus. But some data exchange between mobile phone is so important as to flow. Thus, in this paper, we consideration the XML using in the wireless environment and we are design and implementation the XML encryption system working at the WIPI in order to protect the data, we want to protect.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.21 no.6
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• pp.165-176
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• 2022

In order to prevent various accidents with construction machinery, Korea enacted the Construction Machinery Management Act to enhance safety. Until now, there has been a lack of systematic research related to traffic accidents with construction machinery. Therefore, domestic and foreign systems related to construction machinery were reviewed, and the current status was analyzed based on traffic accident data over the past 5 years to derive implications. It is necessary to ensure the safety of construction machinery by correcting institutional loopholes and preparing follow-up measures. In addition, it is necessary to create a separate traffic-safety education program for construction machinery operators to create an environment that can comply with safe road-driving methods and traffic laws.

• Korean Architects
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• no.11 s.427
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• pp.18-32
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• 2004

영예의 대통령상이 수여되는 한국건축문화대상의 대상이 올해부터 '비주거'와 '주거'로 나뉘어 확대, 시상한다. 그 첫번째 수혜자로 비주거부문은 김삭식 건축사(주.금성 종합건축사사무소 대표)가 설계하고, (주)금호산업이 시공한 '광주광역시청사'가 주거부문에는 김종국(주.종합건축사사무소 건원)건축사가 설계하고, 현대산업개발(주)이 시공한 '아이파크 삼성동'이 국내 준공건축물들을 대상으로 한 2004한국건축문화대상에서 영예의 대상으로 각각 선정됐다. 또 올해 한국건축문화대상에서는 KT여의도사옥 등 6작품이 본상을 차지한 것을 비롯해 우수상 등 모두 22개 작품이 수상작으로 선정됐다. "불이 - Architecture in NatureㆍNature in Architecture"를 주제로 공모한 일반 및 신인ㆍ학생 대상의 계획건축물부문에서는 박종대, 윤새봄, 김정희(인하대학교 건축공학과대학원 건축의장연구실)씨가 공동 출품한 'Plankton House'가 금상을 차지한 것을 비롯해 은상 2팀, 동상 3팀 입선 22점 등 모두 28개 팀이 입상했다. 올해 한국건축문화대상에는 준공건축물부문 89점, 계획건축물부문 252점 등 총 341개 작품이 응모했다. 비주거 부문의 대상을 차지한 광주광역시청사는 "관 건물의 이미지를 탈피하여 하나의 문화 건물로 탈바꿈하려는 시도가 특히 돋보이는 작품으로 시공에도 많은 어려움이 있었음에도 불구하고 완성도가 우수한 작품"이란 평을 받았다. 또한 주거 부문의 아이파크 삼성동은 "아파트이면서도 주상복합의 이미지를 구현시키면서 판상형 형태에서 벗어나 탑상형 배치에 의한 낮은 건폐율 적용으로 친환경적인 단지를 이루고 있으며, 특히 시공이 매우 우수한 작품"이란 평을 받았다. 한편 올해부터 우리나라 건축문화발전을 위해 기여한 건축인을 발굴해 시상하는 '올해의 건축인상'을 제정, 그 첫번째 수상자로 김석철 건축사(아키반건축도시연구원 건축사사무소)와 이창남 건축사(센구조 건축사사무소)가 선정되어 건설교통부장관상을 받았다. 시상식은 지난 11월 24일 서울 종로구 세종로 세종문화회관 컨벤션홀에서 개최되어 대상의 비주거부문 수상작의 설계자인 김상식 건축사에게 대통령상 그리고 시공자인 (주)금호산업에게는 건설교통부장관상, 건축주인 광주광역시장에게는 국무총리상이 수여됐다. 또한 주거부문 수상작의 시공자인 현대산업개발(주)에게 대통령상 그리고 설계자인 김종국 건축사에게는 국무총리상, 건축주인 현대산업개발(주)에게는 건설교통부장관상이 수여됐다. 또 KT 여의도빌딩 등 본상 6개 작품의 설계자 및 시공자에게는 건설교통부장관상 등 정부포상이, 준공건축물부문 우수상 입상자 전원에게는 각각 대한건축사협회장상, 서울경제신문사장상이 수여됐다. 계획건축물부문의 금상 수상자에게는 건설교통부장관상과 상금이 수여되었으며, 은상과 동상, 입선작은 대한건축사협회장상과 상금이 각각 수여됐다. 아울러 동상이상 수상자 중 영어 인터뷰심사를 거쳐 2명을 선발, ARCASIA 학생잼버리대회 파견 특전이 주어진다. 건설교통부와 대한건축사협회, (주)서울경제신문이 공동주최하고 대한주택공사 등 건설관련 5개 단체가 후원하는 한국건축문화대상은 올해로 13회째 개최되고 있다. 더욱이 올해에는 대통령상을 두 부문으로 나누어 시상하는 등 그 폭이 넓어져 수상자에게 더 큰 영예를 주었으며, 시간이 흐를수록 그동안 기성 건축인들의 창작의욕 고취는 물론 건축저변을 크게 확대하였다는 평과 아울러 우리 건축문화 창달에 기여해 한국건축문화대상은 명실공히 국내 건축인은 물론 일반 국민의 대표 건축축제로 자리매김하고 있다.

• The Korean Journal of Air & Space Law and Policy
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• v.28 no.2
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• pp.63-96
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• 2013

Recently, U.S. Department of Transportation (DOT) expanded the "Enhancing Airline Passenger Protections" on August 23, 2011 and October 24, 2011. The Rule regulates tarmac delays, denied boarding compensation, customer service plans, and fare advertising. The adopted rule is to protect passengers by improving passenger service requirements on U.S. national or domestic carriers and foreign air carriers as well. The major issues are as follows: First, regarding to so called Tarmac Delay, carriers must establish a Tarmac Delay Contingency Plan setting forth the number of hours the carrier will permit an aircraft to remain on the tarmac at U.S. airports before allowing passengers to deplane. Carriers also must provide passengers with food and water in the event the aircraft remains on the tarmac for two or more hours and must provide operable lavatories and medical attention while the aircraft remains on the tarmac, irrespective of the length of the delay. Carriers also must create and retain records regarding tarmac delays lasting more than three hours. Also they need to update passengers every 30 minutes during a tarmac delay of the status of the flight and the reason for the delay, allow passengers to deplane if the aircraft is at the gate or another disembarkation area with the door open. Second, carriers now must adopt a "Customer Service Plan" that addresses offering customers the lowest fares available, notifying customers about delays, cancellations, and diversions; timely delivery of baggage; accommodating passengers' needs during tarmac delays and in "bumping cases"; and ensuring quality customer service. Third, the new regulations also increase minimum denied boarding compensation limits to $650 / $1,300 or 200% / 400% of the fare, whichever is less. Last, the DOT also has modified its policies related to enforcement of Rules pertaining to full fare advertising. The Rule states that the advertised price for air transportation must be the entire price to be paid by the customer. Similarly, Korea revised the passenger protection clauses within Aviation Act. However, it seems to be required to include various more issues such as Tarmac Delay, oversales of air tickets, involuntary denied boarding passengers, advertisements, etc.