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本文针对广大陶瓷企业对外部设计资源和设计创新能力需求,研发一种能够实现设计资源集成共享,并支持广大陶瓷企业内外部资源整合和产业链协作的陶瓷设计服务资源管理系统。 相似文献
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为提升人脸识别算法的鲁棒性,减少判别信息的冗余度,提出基于全局不相关的多流形判别学习算法(UFDML)。使用特征空间到特征空间的距离,学习样本局部判别信息,提出全局不相关约束,使提取的判别特征是统计不相关的。在Yale,AR,ORL人脸库上的实验结果表明,与LPP (局部保持投影)、LDA (线性判别分析)、UDP (非监督判别投影)等人脸识别算法相比,所提算法的平均识别率高于其它算法,验证了其有效性。 相似文献
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该文主要讨论了COM技术的基本原理及其在交互图形设计系统中的应用,提出了一种以COM技术为基础的基于交互技术的图形单元组件的模型,并在开发中具体实现了该模型。 相似文献
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GC法测定东亚飞蝗体内脂肪酸的含量 总被引:1,自引:0,他引:1
本论文采用毛细管气相色谱法检测东亚飞蝗体内的5种主要脂肪酸(棕榈酸、硬脂酸、油酸、亚油酸、亚麻酸)的含量,并对比其它常见种类食物脂肪酸的含量。结果表明,东亚飞蝗是富含以上肪脂酸,具有高营养价值的昆虫食品资源。 相似文献
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Yongkang PENG 《等离子体科学和技术》2022,24(5):55404
In this study, we examined the key particles and chemical reactions that substantially influence plasma characteristics. In summarizing the chemical reaction model for the discharge process of N2–O2–H2O(g) mixed gases, 65 particle types and 673 chemical reactions were investigated. On this basis, a global model of atmospheric pressure humid air discharge plasma was developed, with a focus on the variation of charged particles densities and chemical reaction rates with time under the excitation of a 0–200 Td pulsed electric field. Particles with a density greater than 1% of the electron density were classified as key particles. For such particles, the top ranking generation or consumption reactions (i.e. where the sum of their rates was greater than 95% of the total rate of the generation or consumption reactions) were classified as key chemical reactions. On the basis of the key particles and reactions identified, a simplified global model was derived. A comparison of the global model with the simplified global model in terms of the model parameters, particle densities, reaction rates (with time), and calculation efficiencies demonstrated that both models can adequately identify the key particles and chemical reactions reflecting the chemical process of atmospheric pressure discharge plasma in humid air. Thus, by analyzing the key particles and chemical reaction pathways, the charge and substance transfer mechanism of atmospheric pressure pulse discharge plasma in humid air was revealed, and the mechanism underlying water vapor molecules' influence on atmospheric pressure air discharge was elucidated. 相似文献