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RISS 인기검색어
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- 저자 : Yan Yingmin (검색결과 2 건)
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Applications of Heavy Ion Irradiation in Photonic Crystal Research
Ziqiang Zhao,Yingmin Liu,Yan Chen,Ding Lan,Yuren Wang 한국물리학회 2009 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.55 No.6
Photonic crystals (PC) have received extensive attention for the photonic band gap (PBG). The polystyrene (PS) particles bottom-up approach is a productive method for photonic crystal manufacture, this kind of photonic crystals having an unique PBG that depends on the particle’s shape, sizes and defects. Heavy ion irradiation is a very useful method to induce defects in PC and change the shapes of the particles to tune the PBG. MeV heavy ion irradiation leads to an anisotropic deformation of the particles from spherical to ellipsoidal, the aspect ratio of which can be precisely controlled by using the ion energy and flux. Sub-micrometer PS particles were deposited on a Cu substrate and were irradiated at 230 K by using heavy ion energy and fluence in the range from 2 to 10 MeV and 1 × 1014 cm−2 to 1 × 1015 cm−2, respectively. Photonic crystals (PC) have received extensive attention for the photonic band gap (PBG). The polystyrene (PS) particles bottom-up approach is a productive method for photonic crystal manufacture, this kind of photonic crystals having an unique PBG that depends on the particle’s shape, sizes and defects. Heavy ion irradiation is a very useful method to induce defects in PC and change the shapes of the particles to tune the PBG. MeV heavy ion irradiation leads to an anisotropic deformation of the particles from spherical to ellipsoidal, the aspect ratio of which can be precisely controlled by using the ion energy and flux. Sub-micrometer PS particles were deposited on a Cu substrate and were irradiated at 230 K by using heavy ion energy and fluence in the range from 2 to 10 MeV and 1 × 1014 cm−2 to 1 × 1015 cm−2, respectively.
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Research and Application of Collision Detection in Virtual Roam based on WebGL and HTML5
Li Ruizhi,Xu Huahu,Gao Honghao,Yan Yingmin,Bian Minjie,Xu Jiepin 보안공학연구지원센터 2015 International Journal of u- and e- Service, Scienc Vol.8 No.11
With the development of the Internet technology, people’s life and work are more and more dependent on the Internet. Remote rendering techniques permit streaming of high-quality 3D graphics to apply onto a wide range of smart devices, and recent years have also seen many solutions of Web3D applications. Web3D is a kind of technology, which can perform the 3D visualization on the Internet, and virtual roam can present information in a far more intuitive and interactive way to people. So, Web3D technology is the foundation of virtual roam technology. Today, Web3D technology and virtual roam technology has become the research focus of computer technology. This paper presents the basic concept and characteristics of Web3D, and designs a solution concerning the virtual roam by combining WebGL and HTML5. This solution has characteristics of good compatibility, GPU acceleration and free plug-ins. Meanwhile, this paper aims at researching collision detection in the virtual roam and presenting a fast collision detection and correction algorithm.
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