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Hiroki Kikuchi Shigeki Hashimoto Shinichiro Tajiri Tsuneo Hayashi Yutaka Sugawara Michio Oka Yoshiyuki Akiyama Akira Nakamura Naoya Eguchi 《Journal of the Society for Information Display》2009,17(3):263-269
Abstract— A high‐pixel‐rate, high‐contrast (30,000:1) wide‐color‐gamut grating‐light‐valve laser projector is reported. A new optical engine enabling high‐frame‐rate (240 Hz) scan projection is employed. Panoramic wide‐angle‐scan projection with a 64:9 aspect ratio was also developed. Speckle noise is eliminated using a simple but highly efficient technique. The optical throughput efficiency of the grating‐light‐valve laser projector is reviewed. 相似文献
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孙彬 《单片机与嵌入式系统应用》2016,(8)
随着国内移动消费类电子产品日益朝高端化方向发展,通过气压测量高度的功能逐渐吸引了人们的眼球.本文介绍了压阻式MEMS气压传感器芯片BM1383GLV的功能,并基于实际应用提出设计要点与技术瓶颈.该芯片适用于各类移动设备,并且具有高精度、低功耗、封装小等优点. 相似文献
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Volatiles from hosts, non-hosts, interspecifics, and conspecifics of the Asian larch bark beetle, Ips subelongatus Motsch., were analyzed using both gas chromatographic-electroantennographic detection (GC-EAD) and gas chromatography/mass
spectrometry (GC-MS) techniques, and field trapping bioassays in Inner Mongolia, China. GC-EAD experiments indicated that
I. subelongatus antennae (both sexes) strongly responded not only to the major male-produced conspecific components, ipsenol, and ipsdienol,
but also to other bark beetle compounds (cis-verbenol and verbenone), host monoterpenes (α-pinene, β-pinene, and para-cymene) from Larix sp. logs, and non-host leaf (green leaf volatiles and geranyl acetone) and bark (C8-alcohols and trans-conophthorin) volatiles. Repeatable EAD responses were also found to two compounds from hindgut extracts that are undetectable
by GC. One of these minor compounds was identified as amitinol. Field trapping experiments showed that the EAD-active, major
male-hindgut component, racemic ipsenol, is the only individual compound that significantly attracted both sexes of I. subelongatus, whereas all other compounds, including previously reported pheromone components of European Ips cembrae, ipsdienol and 3-methyl-3-buten-1-ol, were unattractive. Ipsdienol, 3-methyl-3-buten-1-ol, or their binary blend had no synergistic
or antagonistic effects on I. subelongatus attraction when combined with ipsenol, whereas cis-verbenol (a synomone) and verbenone (the antiaggregation semiochemical) inhibited its attraction to the ipsenol-containing
attractive blend. A mixture of three EAD-active host monoterpenes, α-pinene, β-pinene, and para-cymene, was unattractive,
but interrupted the pheromone response of I. subelongatus. Geranyl acetone, one of the strong EAD-active non-host volatiles also significantly reduced the number of I. subelongatus captured in traps baited with ipsenol-containing attractive blend. Our results add support to the recent phylogenetic finding
that European and Asian larch bark beetles should be regarded as two distinct species: I. cembrae infecting larch in Europe and I. subelongatus infesting larch in Asia. 相似文献
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利用扭曲的雅可比相交曲线上的Frobenius自同态映射,构造在扭曲的雅可比相交曲线二次扭曲线上的一个斜-Frobenius映射,可用于制定扭曲的雅可比相交曲线的快速点乘算法,而不需要使用任何倍点。采用GLV方法加快扭曲的雅可比相交曲线上的点乘运算,给出斜的Frobenius映射的特征多项式。实例结果表明,该映射能够加速扭曲雅可比相交曲线上的标量乘运算。 相似文献
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We discover that two distinct efficient endomorphisms can both exist on some Galbraith-Lin-Scott (GLS) elliptic curves Galbraith et al. (2009) [4]. By using them we generalize the Gallant-Lambert-Vanstone (GLV) method Gallant et al. (2001) [5] for faster point multiplication on these curves to dimension 3, and give some implementation result which shows that our 3-dimensional GLV (3GLV) method runs in 0.897 the time of 2-dimensional GLV (2GLV) method as Galbraith et al. did in Galbraith et al. (2009) [4] for the point multiplication on these curves. 相似文献
7.
Yitian Fang Jinke Chang Tao Shi Wenchun Luo Yang Ou Dongshi Wan Jia Li 《International journal of molecular sciences》2021,22(24)
Rooting is a key innovation during plant terrestrialization. RGFs/GLVs/CLELs are a family of secreted peptides, playing key roles in root stem cell niche maintenance and pattern formation. The origin of this peptide family is not well characterized. RGFs and their receptor genes, RGIs, were investigated comprehensively using phylogenetic and genetic analyses. We identified 203 RGF genes from 24 plant species, representing a variety of land plant lineages. We found that the RGF genes originate from land plants and expand via multiple duplication events. The lineage-specific RGF duplicates are retained due to their regulatory divergence, while a majority of RGFs experienced strong purifying selection in most land plants. Functional analysis indicated that RGFs and their receptor genes, RGIs, isolated from liverwort, tomato, and maize possess similar biological functions with their counterparts from Arabidopsis in root development. RGFs and RGIs are likely coevolved in land plants. Our studies shed light on the origin and functional conservation of this important peptide family in plant root development. 相似文献
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The preexisting pairings ate, atei, R‐ate, and optimal‐ate use q‐expansion, where q is the size of the defining field for the elliptic curves. Elliptic curves with small embedding degrees only allow a few of these pairings. In such cases, efficiently computable endomorphisms can be used, as in [11] and [12]. They used the endomorphisms that have characteristic polynomials with very small coefficients, which led to some restrictions in finding various pairing‐friendly curves. To construct more pairing‐friendly curves, we consider μ‐expansion using the Gallant‐Lambert‐Vanstone (GLV) decomposition method, where μ is an arbitrary integer. We illustrate some pairing‐friendly curves that provide more efficient pairing from the μ‐expansion than from the ate pairing. The proposed method can achieve timing results at least 20% faster than the ate pairing. 相似文献
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