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24 results on '"Wang, Mao-Zhang"'

5. Multi-platform maneuvering target tracking based on BLUE — AIMM — CI algorithm

Author

Bai Yongqiang and Wang Mao-zhang

Subjects
Nonlinear system, Engineering, Battlefield, business.industry, Blue filter, Tracking system, Computer vision, Artificial intelligence, Kalman filter, business, Multi platform, Merge (version control), Algorithm
Abstract

With the battlefield environment becomes more complicated nowadays, it's difficult to achieve high precision target tracking only using single platform of target tracking system. Especially for maneuvering targets, the application of interactive multiple model (IMM) algorithm based on a variety model becomes necessary and feasible. At the same time, the best linear unbiased estimate (BLUE) filter is much more appropriate and useful than Kalman filter when it comes to deal with nonlinear system. Most of the time, we are blind to the correlation degree of our target during the merge process of tracking. We can track our target with multi-platform with introduction of Cross-Correlation (CI) fusion algorithm which is based on distributed data and proves its effectiveness by simulation.

Published
2015

23. Study on the aluminium chloride-modification for heavy fraction of light diesel oil using tandem mass spectrometry

Author

Wei Feng, Xiao You-Xie, Wang Mao-Zhang, Liu Lang, and Qian Shu-An

Subjects
Chrysene, Anthracene, Chemical ionization, Aluminium chloride, General Chemical Engineering, Organic Chemistry, Analytical chemistry, Energy Engineering and Power Technology, Phenanthrene, Mass spectrometry, chemistry.chemical_compound, Fuel Technology, chemistry, medicine, Molar mass distribution, Phenanthrenes, medicine.drug
Abstract

Tandem mass spectrometry was used to follow the low temperature catalytic modification of the diesel oil heavy fraction in the presence of aluminium chloride. The molecular distribution from chemical ionization mass spectroscopy (c.i.m.s.) of raw feedstock ranges from 150 to 250, with an average molecular weight of 219 (v.p.o.). That of the finally modified pitch ranges from 200 to 800, mainly concentrated between 200 and 500 with v.p.o. molecular weight of 452. The m.s.-m.s. fragmentation analysis of three dominant, characteristic protonated parent ions m z 207, 373, 385, showed ethyl phenanthrenes (-anthracenes), dimers from phenanthrene (anthracene) and C 1 -phenanthrene with substantial naphthenic groups, dimers from C 1 -phenanthrenes and copolymers from hexahydropyrene with phenanthrene, chrysene with C 2 -naphthalene, etc., respectively, to be the main structural types of these parent mass numbers. This modified pitch material, with a characteristic low degree of condensation and extensive naphthenic structures proved to be suitable for transformation into mesophase pitch with high fluidity and a large domain-type anisotropic texture.

Published
1988

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