• 비파괴검사학회지
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• 제25권1호
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• pp.1-8
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• 2005

본 연구에서는 TV 유리패널의 등색프린지 분포를 광탄성 4단계 위상이동법에 의하여 측정한 실험결과를 제시하였다. 재래식 광탄성법에서는 등색 프린지 차수를 각각의 점에 대해서 수작업으로 측정한다. 4단계 위상이동법을 이용하기 위하여, 원형편광기 요소들은 등색프린지분포가 측정되는 지점 혹은 선상을 따라 등경각 방향에 일치시켜야 한다. 4단계 위상이동법은 원형편광기의 검광판을 $0^{\circ},\;45^{\circ},\;90^{\circ}$ 및 $135^{\circ}$ 회전시켜 얻은 4개의 영상을 이용한다. 4단계 위상이동법을 적용하기 위해서는 등경각이 측정하고자 하는 지점이나 선상에 일치하도록 편광기 요소를 정렬시켜야 한다. 4단계 위상이동법으로부터 얻은 실험결과는 세나르몽보간법에 의해 측정한 값과 비교한 결과 서로 잘 일치하였다. 또한, TV 유리패널의 열처리 전 후에 등색프린지 분포를 비교하였다. 측정 결과, TV 유리패널의 열처리 전 후의 등색프린지 차수는 약 2배정도 차이가 나타났다.

• 방송공학회논문지
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• 제10권4호통권29호
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• pp.557-575
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• 2005

다양한 정보기기를 통해 사용자가 원하는 비디오 콘텐츠를 원하는 형태로 언제 어디서나 소비 할 수 있는 유비쿼터스 비디오 서비스를 위한 핵심 요소 기술이 많이 연구되고 있다. 본 논문에서는 디지털 흠 환경에서 TV 단말 및 다양한 사용자 단말을 이용하여 사용자 선호도 기반 유비쿼터스(Ubiquitous) TV 프로그램 콘텐츠를 소비 할 수 있는 시스템 아키텍쳐(Architecture)를 설계하고 이를 구현한 결과를 제시한다. 그리고 댁내 TV 시청자는 자신이 원하는 TV 프로그램 콘텐츠를 원하는 시간에 선택, 소비할 수 있는 유비쿼터스 서비스를 위한 민간 표준인 TV Anytime 규격과 범용적 멀티미디어 접근 및 소비(UMAC: Universal Multimedia Access and Consumption)을 위해 사용자 환경, 사용자 단말 특성, 사용자 특성에 대한 컨텍스트(Context) 정보를 메타데이터로 서술하는 국제표준인 MPEG-21 DIA(Digital Item Adaptation)을 이용한다. 제안된 유비쿼터스 콘텐츠 이동성 프로토타입(Prototype) 시스템은 사용자가 선호하는 콘텐츠를 어떠한 다양한 사용자 단말을 통해서도 소비가 가능하며, 사용자가 소비하던 콘텐츠를 서로 다른 단말을 통해 이동하여 연속적으로 소비 할 수 있도록 설계되었으며, 함께 시청중인 TV 프로그램 콘텐츠에 대해 단일 사용자뿐 만 아니라, 다중 사용자가 서로 다른 시간에도 콘텐츠 소비가 가능하도록 콘텐츠 이동성 기능도 구현되었다. 본 논문에서 제안하는 디지털 홈 환경에서의 유비쿼터스 TV 프로그램 콘텐츠 소비를 위한 유비쿼터스 콘텐츠 이동성 프로토타입 시스템은 흠 서버, 디스플레이 단말, 지능형 정보 단말로 구성되어 있다 본 프로토타입 시스템을 시험하기 위해 8개 장르의 서로 다른 4개의 공중파 방송 채널에서 방영된 42개 TV 프로그램 콘텐츠가 사용되었다.

• 한국방송∙미디어공학회:학술대회논문집
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• 한국방송공학회 2014년도 하계학술대회
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• pp.163-165
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• 2014

In this paper, we propose a world's first programmable video processing platform for video quality enhancement of 8K ($7680{\times}4320$) UHD (Ultra High Definition) TV at 60 frames per second. To support huge computation and memory bandwidth of video quality enhancement for 8K resolution, the proposed platform has unique features like symmetric multi-cluster architecture for data partitioning, ring data-path between clusters to support data pipelining, on-the-fly processing architecture to reduce DDR bandwidth, flexible hardware to accelerating common kernel in video enhancement algorithms. In addition to those features, general programmability of SRP (Samsung reconfigurable processor) as main core of the proposed platform makes it possible to upgrade continuously video enhancement algorithm even after the platform is fixed. This ability is very important because algorithms for 8K DTV is under development. The proposed sub-system has been embedded into SoC (System on Chip) and new 8K UHD TV using the programmable SoC is expected at CES2015 for the first time in the world.

• 대한영양사협회학술지
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• 제10권1호
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• pp.58-64
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• 2004

This study was performed to investigate the kinds of health food advertised and sold through media like printed matter, TV broadcasting or internet. It was found that fifty three percent of the health food was circulated through internet, 27% through printed matter, 9% through TV Broadcasting. When the health foods was classified, the proportion of special purpose nutritious foods was 36.1%, health aid foods 33.9%, uncooked powdered foods 18.5%, functional foods for health 4.9%, Ginseng products 3.9%, and tea 0.9%. The special purpose nutritious foods was composed of 59% of nutrition supplementary foods, 24% of dietary fiber foods, 9% of weaning foods, 7% of milk formula and 2% of HCA. Vegetable extracts occupied 21.1% of health aid foods, yeast 7.5%, mushroom extracts 7.0%, chitosan 6.2%, aloe 5.3%. Dried powdered type health food occupied the highest proportion. The other type were capsule(18.8%), tablet(18.1%), and liquid type(16.4%). When the health food was classified with health claim, the proportion of "nutrition supplementation" was the highest (23.9%), "diet" 14.9%, "ergogenic"(18.8%), "promoting bowel movement" 7.8%, "growth" 5.7%, "regulation of blood sugar" 4.5%, "improving of immunity"(2.4%) and anti-aging effect(2.4%).

• 한국포장학회지
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• 제6권1호
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• pp.37-40
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• 2000

This study was carried out to investigate dropping shock of household electric appliances during materials handling. Microwave oven($18{\ell}$), TV(16") and washing machine(6.2kg) were singled out as the study items. From the results of dropping test by KS A 1026(General Rules of Performance Testing for Packaged Freights), relative equations were gained as follow : y=0.0863x+10.032 for microwave oven, y=0.136x+7.85 for TV and y=0.214x+5.8 for washing machine (where y is G-factor and x is Dropping height). The maximum values of dropping shock during materials handling were measured to be $11{\sim}14G$ for microwave oven, $12{\sim}15G$ for TV and $10{\sim}12G$ for washing machine. The maximum shocks of microwave oven, TV and washing machine during materials handling were corresponding to dropping shocks of dropping height 45.98cm, 52.57cm and 28.97cm by KS A 1026.

• 복식
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• 제55권8호
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• pp.85-98
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• 2005

This Study is to analyze characteristics of costume change of according to the status of character succeeding the investigation of the ceremonial costume change in historical TV dramas that The Empress Myungsung entered. For this study, the costume images among historical TV dramas, that Myungsung entered, '500 years of Chosun Dynastyv, Taewongun(1990, MBC)', 'The Glorious Dawn(1993, KBS1)', 'The Empress Myungsung(2001, KBS2)'were used: The characteristics of the costume change of main character are as follows. First, main character's costume has been increase gradually in number and item. Second, Especially in the last work,'The Empress Myungsung', the royal costume based on historical evidence in aspects of silhouette, but it didn't according to the historical costume in aspects of color and textile. Nevertheless the costume reveals the status of each person significantly. Third, the costumes of the recent historical drama appears as a optical symbol that represents historical view point and different interpretation of each drama. Therefore the costume according to the status of the character wrong from the historical point of view. Consequently, TV costume in historical drama Myungsung entered has been focused on the beauty of the screen and dramatic effect than historical viewpoint. So the costume have been to be an essential visual part by means of the symbol revealed the purpose.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2002년도 International Meeting on Information Display
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• pp.498-499
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• 2002

In In order to develop liquid crystal mixtures of high response time and high nematic-isotropic transition temperature ($T_{NI}$) for LCD-TV application, novel liquid crystal molecules with a fluoro-isothiocyanate moiety were synthesized. They showed remarkably high $T_{NI}$ over 200 $^{\circ}C$, wide mesophase range of 170 $^{\circ}C$, high dielectric anisotropy of 14 and high optical anisotropy of 0.19. New LC Mixtures of the high $T_{NI}$ ($85{\sim}100 ^{\circ}C$) and fast response time ($8{\sim}10ms$) were blended with the novel fluoro-isothiocyanate containing LC molecules, phenylcyclohexanes, bicyclohexanes and ester compounds. It was also studied on optimum pitch of liquid crystal for high speed twisted nematic LCD-TV applicaton. The LC mixtures show a fast speed of the below one frame rate in real 17" TV panel.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2002년도 International Meeting on Information Display
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• pp.413-414
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• 2002

In In order to develop liquid crystal mixtures of high response time and high nematic-isotropic transition temperature ($T_{NI}$) for LCD-TV application, novel liquid crystal molecules with a fluoroisothiocyanate moiety were synthesized. They showed remarkably high $T_{NI}$ over 200 $^{\circ}C$, wide mesophase range of 170 $^{\circ}C$, high dielectric anisotropy of 14 and high optical anisotropy of 0.19. New LC Mixtures of the high $T_{NI}$ (85${\sim}$100 $^{\circ}C$) and fast response time (8${\sim}$10ms) were blended with the novel fluoroisothiocyanate containing LC molecules, phenylcyclohexanes, bicyclohexanes and ester compounds. It was also studied on optimum pitch of liquid crystal for high speed twisted nematic LCD-TV applicaton. The LC mixtures show a fast speed of the below one frame rate in real 17" TV panel.

• 한국멀티미디어학회논문지
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• 제8권6호
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• pp.814-826
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• 2005

The user-centric broadcasting environment includes the agent system and personalized broadcasting services for user-adaptive TV watching. In this paper, we propose broadcasting environment consisting of personalized broadcasting services and a multi-agent broadcasting system for the services. The proposed system employs the intelligent agent technology of the Foundation for Intelligent Physical Agents (FIPA) as well as metadata technology of MPEG-7 and TV-Anytime Forum (TVAF). To verify the usefulness of the proposed environment, we implemented a test-bed and demonstrated the proposed agent system with three services including intelligent user-information management service, information mobility service, and content retrieval service.

• 한국방송∙미디어공학회:학술대회논문집
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• 한국방송공학회 2015년도 추계학술대회
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• pp.26-27
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• 2015

본 논문은 ATSC2.0 기반 8-VSB/MH 융합형 3DTV (A/104 Part 5 Service Compatible 3DTV using Main and Mobile Hybrid Delivery) 방식 수신모듈개발에 대한 내용을 기술한다. ATSC A/104 Part 5 SC-MMH 3DTV 방식은 2014. 8 월 미국의 지상파 DTV 표준화 논의단체인 ATSC 에서는 고정 HD 서비스를 위한 8-VSB 채널과, In-band 모바일 TV 서비스를 위한 ATSC M/H 채널을 이용하여, 주파수 효율을 극대화한 새로운 방식의 고정/이동 TV 융합형 3DTV 방식을 ATSC 3DTV Standard 로 채택되었으며, 2015 년말까지 좌/우영상의 화질차이 극복을 위한 화질개선안(Video Enhancement Information) 역시 ATSC 국제표준채택이 유력하다. 본 논문에서는 이와 같은 8-VSB/MH 융합형 수신기 개발에 필수적으로 필요한 8-VSB/MH 융합형 수신모듈 구현에 대한 내용을 기술한다.