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Your search keyword '"Wu, Jinping"' showing total 27 results
Start Over Author "Wu, Jinping" Publisher springer science and business media llc
27 results on '"Wu, Jinping"'

11. Nonequilibrium Lever Principle and New Type of Dynamic Phase Diagrams for Si2Mn-Type Steel

Author

Hujian, Zou Qinghua, and Wu Jinping

Subjects
Lever, Materials science, business.product_category, Metals and Alloys, Structure (category theory), Non-equilibrium thermodynamics, Thermodynamics, Type (model theory), Physics::Classical Physics, Condensed Matter Physics, Mechanics of Materials, Spring (device), Metallic materials, business, Phase diagram
Abstract

A new type of dynamic phase diagrams for spring steels of the Si2Mn type is presented and a formula is suggested for describing the lever principle as applied to such diagrams. The structure and chemical composition of the studied steels are analyzed.

Published
2003
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12. The dynamical model of chemical oscillation in CaF2-HCl-H2O solid-liquid reaction system

Author

Wu Pingxiao, Li Cai-Wei, Wu Jinping, and Yang Wenhua

Subjects
Adsorption, Flow (mathematics), Geochemistry and Petrology, Chemistry, Oscillation, Continuous stirred-tank reactor, Physical chemistry, Thermodynamics, Reaction system, Physics::Chemical Physics, Dissolution, Solid liquid, Catalysis
Abstract

Based on the physical chemistry principle, this paper proposes that the surface adsorption catalytic mechanism of HF is the key to dissolving the oscillation of the CaF2-HCl-H2O solid-liquid reaction system. Meanwhile the dynamical model of this system has been established in order to study its non-linear dynamical genesis. Although this mathematics model is based on CSTR reaction apparatus, it is applicable to the foliate flow reaction apparatus, too.

Published
1999
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15. Rhythmic zoning and self-organization in silicate solid-solution minerals

Author

Wu Jinping and Wang Jianghai

Subjects
Crystal, chemistry.chemical_compound, Geochemistry and Petrology, Chemistry, Mass balance, Regular solution, Thermodynamics, Gas constant, Mineralogy, Crystal growth, Mole fraction, Silicate, Solid solution
Abstract

Rhythmic zoning is ubiquitous in igneous rocks. Based on polymerization and regular solution models, a non-ideal, disequilibrium and non-linear interface equation has been established to describe the process of crystal growth:f = 1/[1 + (β/x s )(1 -x s )exp(-W / RT)(1 - 2f)] wheref and xs represent respectively the mole fraction of a component in the crystal and melt at the interface;W the total exchange energy;R the gas constant; andT the temperature; β=k B /k A , withk A andk B representing respectively the rate constants of components A and B. Results of numerical simulation of the equation demonstrate that a domain of triple valuedness exists ifW / RT < -2. This model, together with the mass balance equation, explains reasonably the rhythmic phenomena in silicate solid solutions, indicating that self-organization is responsible for this process during mineral growth.

Published
1991
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24. The Earth’s inner core deviation to plate movement

Author

Huang, Dinghua, primary, Wu, Jinping, additional, Duan, Yichun, additional, Guo, Hao, additional, Zhang, Heng, additional, Yao, Lingqing, additional, Zhang, Fan, additional, Li, Bin, additional, Wang, Junhui, additional, and Yin, Hongfu, additional

Published
2001
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27. A study on the flux, speciation, and budget of mercury in controlled experimental ecosystems

Author

Wu Jinping, F. A. Whitney, C. S. Wong, K. W. Johnson, and Lu Xiankun

Subjects
geography, geography.geographical_feature_category, biology, Chemistry, chemistry.chemical_element, Oceanography, Inlet, biology.organism_classification, Mercury (element), Water column, Diatom, Environmental chemistry, Phytoplankton, Particulate mercury, Ecosystem, Bloom, Water Science and Technology
Abstract

The lowest addition of mercury (0.1 ug Hg 1−1) was used in CEEs for research on mercury flux, speciation and budget. The removal behavior of mercury by phytoplankton in water columns of CEEs can be described by first order kinetic equations for total and particulate mercury in the CEE spiked by mercury. The removal rate of mercury in water columns depends on the size and productivity of phytoplanton in a water column to which mercuric ions were added. A 4.4 day half-life time and a 2.8 day half-life time for total and particulate mercury respectively was obtained in diatom bloom. During microflagellate bloom a 30 day total mercury half-life time was estimated with increase of particulate mercury in the water column. The 0.010 ug Hg cm−2y−1 mercury flux rate that was attained in the control bag agreed with the values from field measurements in Saanich Inlet where the bags were launched.

Published
1987
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