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本文提出一种在Hawk仪器Transcriber系统中,外接安装有地震数据转储专用软件的计算机,在一定程度上能够提高和改善Hawk仪器Transcriber系统的数据转储效率,对Hawk仪器在大规模的数据采集应用时有一定的参考价值。 相似文献
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在传统的进化博弈理论中,假设博弈方与另外博弈方之间的交流是平等的,与其所选择的博弈策略无关。文中将此传统框架扩展,用各博弈方所选择的策略决定其之间的交流程度,即交流系数。交流系数的引入使得各博弈方之间的博弈速率不再是统一的,而是与其各自所选择的策略有关,从而使原本线性的适应度函数成为非线性函数,扩展了进化博弈理论的框架。 相似文献
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老鹰茶是由毛豹皮樟(Litsea coreana Levl. var. lanuginosa)叶片制成的保健饮品,其黄酮类成分含量丰富,主要包括山奈酚、槲皮素、儿茶素、乔松素和松脂素5类,具有抗氧化、抗紫外、抗炎、保肝、降血糖和抗菌等活性,是一种理想的天然食品添加剂来源。通过对老鹰茶黄酮类成分的提取工艺、化合物结构及主要生物活性进行综述,提出将黄酮作为老鹰茶质量鉴定标准、加深老鹰茶黄酮抗菌活性研究的建议,以期对老鹰茶在食品工业的进一步开发利用提供科学参考,为民族地区的经济发展做出更多贡献。 相似文献
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张爱文 《黑龙江工程学院学报》2010,24(3):39-41
鹰眼技术的运用可以有效提高体育赛事判罚的公正性,具有日益广泛的应用需求,但高昂的安装及使用成本限制着鹰眼系统应用的普及。从鹰眼系统的应用与存在的问题角度,提出开发廉价鹰眼系统的必要性,并简述采用MapX技术实现的一个简易鹰眼一即时回放系统的基本思路及其关键技术。测试结果显示该系统可以实现预定功能,并满足低成本要求,具有良好的推广前景。 相似文献
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针对现阶段基于图像处理进行螺纹中径测量时算法收敛速度慢、精度低的问题,提出一种基于改进哈里斯鹰优化算法的螺纹钢丝头中径测量方法.首先,采用三次样条插值法进行亚像素级的边缘检测,精确提取出螺纹波峰波谷等参数后再构建出中径适应度函数,最后,将螺旋式更新机制和非线性能量递减策略引入哈里斯鹰优化算法(HHO)来求解中径适应度函数.实验结果表明,改进的哈里斯鹰优化算法稳定性更好、精度更高,其中径测量的标准差比传统HHO算法降低了59.33%,中径测量结果的绝对均值误差比三针测量法降低了5.08%,比HHO算法降低37.78%. 相似文献
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为了明确老鹰茶的香气成分及其体外功效,通过气相-质谱(GC-MS)分析、清除DPPH自由基实验、羟基自由基、抗突变实验、AGS及HT-29癌细胞增殖抑制实验对四川蒙顶地区出产的老鹰茶的香气成分进行了研究。测定发现老鹰的香气成分主要包括13种成分,分别是7H-二苯并[b,g]咔唑、癸烷、1H-吲哚、丙烯酮、4-氨基苯乙烯酸、苯并[b]硒酚-2-腈、2-甲基氨甲基-1,3-二氧戊环、(E)-2-氟-3-(4-N,N-二甲端芳氨基)-丙烯酸、2-甲基-6-叔辛基酚、棕榈酸、盐酸吖啶橙、2-甲胺甲基-1,3-二氧戊环和2-氨基丁烷;而且发现老鹰茶香气成分具有体外抗氧化、抗突变和抗癌的效果。 相似文献
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Reedbeds are important habitats for supporting biodiversity and delivering a range of ecosystem services, yet reedbeds in the UK are under threat from intensified agriculture, changing land use and pollution. To develop appropriate conservation strategies, information on the distribution of reedbeds is required. Field surveys of these wetland environments are difficult, time consuming and expensive to execute for large areas. Remote sensing has the potential to replace or complement such field surveys, yet the specific application to reedbed habitats has not been fully investigated. In the present study, airborne hyperspectral and LiDAR imagery were acquired for two sites in Cumbria, UK. The research aimed to determine the most effective means of analysing hyperspectral data covering the visible, near infrared (NIR) and shortwave infrared (SWIR) regions for mapping reedbeds and to investigate the effects of incorporating image textural information and LiDAR-derived measures of canopy structure on the accuracy of reedbed delineation. Due to the high dimensionality of the hyperspectral data, three image compression algorithms were evaluated: principal component analysis (PCA), spectrally segmented PCA (SSPCA) and minimum noise fraction (MNF). The LiDAR-derived measures tested were the canopy height model (CHM), digital surface model (DSM) and the DSM-derived slope map. The SSPCA-compressed data produced the highest reedbed accuracy and processing efficiency. The optimal SSPCA dataset incorporated 12 PCs comprised of the first 3 PCs derived from each of the spectral segments: visible (392-700 nm), NIR (701-972 nm), SWIR-1 (973-1366 nm) and SWIR-2 (1530-2240 nm). Incorporating image textural measures produced a significant improvement in the classification accuracy when using MNF-compressed data, but had no impact when using the SSPCA-compressed imagery. A significant improvement (+ 11%) in the accuracy of reedbed delineation was achieved when a mask generated by applying a 3 m threshold to the LiDAR-derived CHM was used to filter the reedbed map derived from the optimal SSPCA dataset. This paper demonstrates the value in combining appropriately compressed hyperspectral imagery with LiDAR data for the effective mapping of reedbed habitats. 相似文献
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