• Title/Summary/Keyword: GIF

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Studies on the Epitope of Neuronal Growth Inhibitory Factor (GIF) with Using of the Specific Antibody

  • Pang, Li-Yan;Ru, Bing-Gen
    • BMB Reports
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    • v.38 no.6
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    • pp.646-649
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    • 2005
  • Human neuronal growth inhibitory factor (GIF), a metalloprotein classified as metallothionein-3, is specifically expressed in mammal central nervous system (CNS). In these Studies the specific antibody to human GIF was prepared and used to search the epitope of human GIF by enzyme-linked immunosorbent assay (ELISA) and sequence comparison. The result of ELISA showed the epitope of human GIF may locate on a octapeptide (EAAEAEAE) in the $\alpha$-domain of human GIF, and the result of nerve cell culture indicated that the biological activity of GIF may be affected by the specific antibody.

Biological roles and an evolutionary sketch of the GRF-GIF transcriptional complex in plants

  • Kim, Jeong Hoe
    • BMB Reports
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    • v.52 no.4
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    • pp.227-238
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    • 2019
  • GROWTH-REGULATING FACTORs (GRFs) are sequence-specific DNA-binding transcription factors that regulate various aspects of plant growth and development. GRF proteins interact with a transcription cofactor, GRF-INTERACTING FACTOR (GIF), to form a functional transcriptional complex. For its activities, the GRF-GIF duo requires the SWITCH2/SUCROSE NONFERMENTING2 chromatin remodeling complex. One of the most conspicuous roles of the duo is conferring the meristematic potential on the proliferative and formative cells during organogenesis. GRF expression is post-transcriptionally down-regulated by microRNA396 (miR396), thus constructing the GRF-GIF-miR396 module and fine-tuning the duo's action. Since the last comprehensive review articles were published over three years ago, many studies have added further insight into its action and elucidated new biological roles. The current review highlights recent advances in our understanding of how the GRF-GIF-miR396 module regulates plant growth and development. In addition, I revise the previous view on the evolutionary origin of the GRF gene family.

An Implementation of Animated GIF Generating and Viewing Application Using Mobile-JPVM (Mobile-JPVM을 이용한 Animated GIF 생성 및 뷰잉 프로그램 구현)

  • Lee, Ye-In;Lee, Jong-Woo
    • Journal of Digital Contents Society
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    • v.10 no.4
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    • pp.485-492
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    • 2009
  • In these days mobile handsets have come to be used at almost every user. The mobility of mobile devices and the performance improvement of the mobile networks have made this trend possible. As a great variety of mobile applications are published, the necessity of running large-scale mobile applications becomes greater than before. To accomplish this, the existing researchers have developed mobile cluster computing libraries like Mobile-JPVM. In this paper, we implement a compute-intensive Animated GIF generating application and its cell phone viewer software using Mobile-JPVM library. We find out by the real execution of our softwares on the KTF handsets that they can sufficiently run on cellular phones. Our Animated GIF generator and its viewer are going to be commercially used for the mobile fashion advertisement systems.

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Assessing the Potential of Small Modular Reactors (SMRs) in Spent Nuclear Fuel Management: A Review of the Generation IV Reactor Progress

  • Hong June Park;Sun Young Chang;Kyung Su Kim;Pascal Claude Leverd;Joo Hyun Moon;Jong-Il Yun
    • Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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    • v.21 no.4
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    • pp.571-576
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    • 2023
  • The initial development plans for the six reactor designs, soon after the release of Generation IV International Forum (GIF) TRM in 2002, were characterized by high ambition [1]. Specifically, the sodium-cooled fast reactor (SFR) and very-high temperature reactor (VHTR) gained significant attention and were expected to reach the validation stage by the 2020s, with commercial viability projected for the 2030s. However, these projections have been unrealized because of various factors. The development of reactor designs by the GIF was supposed to be influenced by events such as the 2008 global financial crisis, 2011 Fukushima accident [2, 3], discovery of extensive shale oil reserves in the United States, and overly ambitious technological targets. Consequently, the momentum for VHTR development reduced significantly. In this context, the aims of this study were to compare and analyze the development progress of the six Gen IV reactor designs over the past 20 years, based on the GIF roadmaps published in 2002 and 2014. The primary focus was to examine the prospects for the reactor designs in relation to spent nuclear fuel burning in conjunction with small modular reactor (SMR), including molten salt reactor (MSR), which is expected to have spent nuclear fuel management potential.

Hausdorffness on Generalized Intuitionistic Fuzzy Filters

  • Park, Jin-Han;Park, Jin-Keun;Lee, Bu-Young
    • Proceedings of the Korean Institute of Intelligent Systems Conference
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    • 2003.05a
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    • pp.25-28
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    • 2003
  • The notion of generalized intuitionistic fuzzy sets (GIF sets) was introduced by Mondal and Samanta [J. Fuzzy Math. 10(4) (2002) 839-861]. By this notion, a notion of GIF filters is introduced and studied. Also a new notion of of Hausdorffness is defined on GIF filters and tlleir properties are studied to some extent.

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The Design and Implementation of Multi Platform Animation Avata System Using SVG Animation (SVG Animation을 이용한 다중 플랫폼 애니메이션 아바타 시스템 설계 및 구현)

  • 모양미;유남현;김원중
    • Proceedings of the Korean Information Science Society Conference
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    • 2003.10b
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    • pp.697-699
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    • 2003
  • 온라인 게임에서 개인의 분신으로 활용되던 아바타는 2000년 '세이게임"이라는 포탈 사이트를 통해 본격적으로 인터넷 사이트에 등장하였다. 이후 아바타는 게임 및 인터넷 커뮤니티에서의 자신을 대변하는 기능을 넘어, 다양한 형태의 캐릭터 비즈니스로의 가능성이 부각되고 있다. 웹사이트에서 제공되는 아바타 시스템은 GIF 파일 포맷을 기본으로 하여 제공되며, GIF Animation을 이용하는 경우 애니메이션 아바타를 표현할 수 있었다. 그러나 모바일 환경에서는 GIF Animation이 지원되지 않아 애니메이션 아바타를 표현할 수 없었다. 본 논문에서는 SVG Animation 기법을 활용하여 개인용 컴퓨터외에 다양한 모바일 환경에서도 구현이 가능한 애니메이션 아바타 시스템을 설계, 구현하였다.현하였다.

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Gif-KRICT Biomimetic Oxidation of Cyclohexane: The Influence of Metal Oxides

  • 박애숙;남상성;김성보;이규완
    • Bulletin of the Korean Chemical Society
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    • v.20 no.1
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    • pp.49-52
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    • 1999
  • Various metal oxides such as Fe2O3, FeO, TiO2, MnO2, MoO3, WO3 and ZnO have been used as a catalyst for Gif-KRICT type cyclohexane oxidation. In this reaction, the conversion of cyclohexane to cyclohexanone and cyclohexanol and the selectivity ratio of cyclohexanone to cyclohexanol were greatly affected by the acidity of metal oxides. When metal oxide has more acidic property, the reactivity on oxidation is increased and the formation of cyclohexanone is more favored. From this result, we proposed a new mechanism for the biomimetic Gif-KRICT oxidation system.

Performance evaluation of mobile multicore devices on threading in converting JPEG to animated GIF (JPEG을 Animated GIF로 변환하는 과정에서 스레딩에 따른 멀티코어 모바일 디바이스의 성능 평가)

  • Woo, Hosung;Kim, Kangseok;Kim, Jai-Hoon
    • Proceedings of the Korea Information Processing Society Conference
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    • 2013.05a
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    • pp.328-331
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    • 2013
  • 본 논문에서는 멀티코어 모바일 디바이스에서 최적의 스레드 구성을 측정하기 위해 이미지 코덱을 사용하여 다양한 환경에서 스레드 개수에 따른 인코딩 수행시간을 분석하였다. 인코딩은 Quantization을 사용하여 JPEG 파일들을 하나의 GIF 파일로 변환하는 기능을 수행하며, 듀얼코어와 쿼드코어 안에서 각각의 스레드 개수를 늘려가며 측정하였다. 듀얼코어에서는 스레드 4개였을 경우가 성능이 효율적이였으며, 쿼드 코어에서는 스레드 3개였을 경우가 성능이 효율적이였다. 분석 후 결론은 스레드 개수와 성능은 비례하는 것이 아니며 성능에 크게 영향을 미치지 않는 것으로 확인되었다. 코어와 I/O입출력의 성능 및 데이터 크기에 따라 적당한 스레드 개수를 정하여 사용하는 것이 효율적이다.

Genomic Organization and Promoter Characterization of the Murine Glial Cell-derived Neurotrophic Factor Inducible Transcription Factor (mGIF) Gene (생쥐 신경교세포 유래 신경영양인자 유도성 전사인자 (mGIF) 유전자의 유전체 구조 및 프로모터 특성 분석)

  • Kim, Ok-Soo;Kim, Yong-Man;Kim, Nam-Young;Lee, Eo-Jin;Jang, Min-Kyung;Lee, Dong-Geun;Lee, Sang-Hyeon
    • Journal of Life Science
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    • v.17 no.2 s.82
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    • pp.167-173
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    • 2007
  • To study the transcriptional mechanisms by which expression of the murine glial cell-derived neurotrophic factor inducible transcription factor (mGIF) gene is regulated, a murine genomic clone was iso-lated using a mGIF cDNA as probe. A 13-kb genomic fragment, which comprises 4-kb upstream of the transcription initiation site was sequenced. The promoter region lacks a TATA box and CAAT box, is rich in G+C content, and has multiple putative binding sites for the transcription factor Spl. The mGIF gene also has consensus sequences for AP2 binding sites. The transcriptional activity of five deletion mutants of a 2.1-kb fragment was analyzed by modulating transcription of the heterologous luciferase gene in the promoterless plasmid pGL2-Basic. All mutants showed significant transcriptional activity in the murine neuroblastoma cell line NB41A3. Transient expression assays suggested the presence of a positive regulator between -213 and -129 while a negative regulator was found in the region between -806 and -214. Relatively strong transcriptional activity was observed in neuronal NB41A3, glial C6 cells and hepatic HepG2, but very weak activity in skeletal muscle C2C12 cells. These findings confirm the tissue-specific activity of the mGIF promoter and suggest that this gene shares structural and functional similarities with the dopamine receptor genes that it regulates.