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961.
962.
In this paper, a new particle filter is proposed to solve the nonlinear and non-Gaussian filtering problem when measurements are randomly delayed by one sampling time and the latency probability of the delay is unknown. In the proposed method, particles and their weights are updated in Bayesian filtering framework by considering the randomly delayed measurement model, and the latency probability is identified by maximum likelihood criterion. The superior performance of the proposed particle filter as compared with existing methods and the effectiveness of the proposed identification method of latency probability are both illustrated in two numerical examples concerning univariate non-stationary growth model and bearing only tracking. 相似文献
963.
964.
指出高强绝缘绳在线路施工中越来越被广泛地应用,施工中减少损伤高强绝缘绳,延长使用次数,直接关系到线路工程的施工效益.为了避免高强绝缘绳在使用过程中因工器具原因造成的高温和损伤,设计了高强绝缘绳用保护滑轮. 相似文献
965.
Man‐Li Zhao Jiang‐Ning Hu Xue‐Mei Zhu Hong‐Yan Li Jing Li Ya‐Wei Fan Ze‐Yuan Deng 《International Journal of Food Science & Technology》2014,49(2):453-459
Medium‐ and long‐chain triacylglycerols (MLCTs)–enriched structured lipid (SL) was synthesised through enzymatic interesterification from Cinnamomum camphora seed oil (CCSO) and camellia oil (CO) using Lipozyme RM IM from Rhizomucor miehei as a biocatalyst. Effects of different reaction conditions including substrate molar ratio, reaction time and reaction temperature were investigated. Results showed that 55.81% of total MLCT species (CCO/LaCL, LaCO/LCL, COO/OCO and LaOO/OLaO) was obtained in the interesterified product under the optimal conditions of substrate molar ratio of 1:1.5 (CCSO/CO) at 60 °C for 3 h. Thereafter, fatty acid profiles, tocopherol contents and physiochemical characteristics of the interesterified product and physical blend were comparatively investigated. The fatty acid composition of the interesterified product consisted of capric acid (26.33%), lauric acid (21.29%) and oleic acid (42.33%). It should be mentioned that the interesterified product contained predominantly oleic acid (88.69%) at Sn‐2 position, while MCFAs (68.05%) at Sn‐1,3 positions. Compared with physical blend, the reduction in tocopherol contents and changes of physiochemical characteristics occurred in SL. The smoke point of the interesterified product was much higher than that of the physical blend, which meant that such MLCTs‐enriched SL could be better for cooking purpose. 相似文献
966.
Ning Peng ;Li-Bo Liang ;Ye-Dong He ;Hong-Zhou Song ;Xiao-Fei Yang ;Xiao- Yu Cai 《北京科技大学学报(英文版)》2014,(10):974-979
The morphology of etched aluminum foil was observed using scanning electron microscopy, which led to the establishment of a cylindrical model and two merged models, considering the fixed weight loss of etching. The maximum of specific capacitance and the cor- responding optimum values for tunnel sizes at various anodization voltages were predicted. The increased size distribution and taper of tun- nels were demonstrated to decrease the specific capacitance, whereas the addition of polymeric additive into the ttmnel widening solution was demonstrated to increase the capacitance. The formation of merged tunnels on the etched aluminum surface, irrespective of the presence of row-merged tunnels or cluster-merged tunnels, resulted in a dramatic decrease in the specific capacitance. It is concluded that, enhancing the uniformity of turmel size and distribution and avoiding the formation of merged tunnels are the effective approach to achieving the higher capacitance for the tunnel etched and formed aluminum foil. 相似文献
967.
徐宁 《电气电子教学学报》2012,34(3):103-105
针对专业课的特点和教学要求,本文研究探索如何将研究型教学理念贯穿于"物理光学"教学过程中,通过对研究型教学内涵的分析,介绍了教学改革的具体措施与实施过程。实践表明,研究型教学理念的应用有助于调动学生的积极性,培养学生的创新能力和团队意识,取得很好的教学效果。 相似文献
968.
介绍了该工艺的运行原理以及工艺特点,并介绍了该工艺在冀东油田柳一联的运行情况,以及运行经验。 相似文献
969.
(from No.3)What kind of procurement mode is applied by China oil majors?Three China oil majors all choose centralized procurement as their core strategies.It is helpful to achieve scale efficiency as well as to reduce procurement costs.It is also helpful to utilize resources more efficiently and enhance their market influence.In the summary of their procurement mode,they all used traditional Chinese state-owned wording,generally pronunciation in rhyme and meaning with a deep implication. 相似文献
970.