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Online since: December 2011
Authors: An Ping Liao, Hai Hang Xu, Lei Zhong, Ji Zhao Liang
A New Extensional Viscosity Model Based on The Cross Model for Polymer Fluids Lei Zhong1, Haihang Xu2, Jizhao Liang3, Anping Liao1,a 1 School of Chemistry and Ecology Engineering, Key Laboratory of Chemical and Biological Transforming Process, Guangxi University for Nationalities, Nanning, 530006, China 2 Department of Mechanism and Electron, Panyu Polytechnic, Panyu, 511483, China 3 School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou, 510641, China aCorresponding author, leiwin@163.com Keywords: polymer fluids, extensional viscosity, Cross model.
The reason of the model can fit both linear and non-linear polymers is probably that it contains no specific parameters of polymer structure.
Online since: November 2011
Authors: Li Jun Wang, Wei Hua Li, Jin Feng Mao, Lu Yan Sui
After high temperature expanded, the graphite layer of the original plane was inhomogeneous deformation, and plane layer was curled state, the surface was network structure, the scanning electron microscope photograph of graphite shown in Fig.2.
Chemistry.Vol.10(996),p.43
Online since: November 2011
Authors: D. Cirillo, S. Sivasubrammanian, Roberto Germano, V. Tontodonato, Allan Widom, Yogendra N. Srivastava, Emilio del Giudice, G. Vitiello
When the voltage across the chemical cell is sufficiently high, the usual Faraday law electrolysis of water may take place via the chemistry 4e− (Cathode) + 2H2O (Interfacial) → 4H (Cathode) + 2O−− (Interfacial), 4H (Cathode) → 2H2 (Gas), 2O−− (Interfacial) → 2O−− (Bulk Emulsion), 2O−− (Bulk Emulsion) → O2 (Gas) + 4e− (Anode), (1) We note, in passing, the possible transport of negative charge between the interfacial water and the water bulk emulsion may take place employing reactions of the type 2O−− (Interfacial) + 2H2O(Interfacial) → 4HO−(Interfacial), 4HO−(Interfacial) → 4HO−(Bulk Emulsion), 4HO−(Bulk Emulsion) → 2O−− (Bulk Emulsion) + 2H2O(Bulk emulsion). (2) In any case, we have the total chemical reaction 4e− (Cathode) + 2H2O (Interfacial) → 2H2 (Gas) + O2 (Gas) + 4e− (Anode). (3) In terms of Faraday's law (1F ≡ 96485.34 Coul), for every 4F charge passing through the chemical cell there will be two moles of hydrogen gas and one mole of oxygen gas produced.
Fig. 1: The structure of the cathode-water interface includes Hydrogen atoms absorbed within the cathode metal, ordered interfacial water and bulk emulsion water with ordered domains.The chemical reaction chain would thereby involve the photon γ, e.g. in FIG. 1, e− (Cathode) → e− (Interfacial), e− (Interfacial) + K+ (Bulk Emulsion) → K (Bulk Emulsion) + nγ, K (Bulk Emulsion) → K+ (Bulk Emulsion) + e− (Anode). (4) In total, for n = 1, 2, · · · photon emission, e− (Cathode) → e− (Anode) + nγ. (5) Thus, the interface between the interfacial water and the bulk colloidal emulsion water radiates electromagnetic energy giving rise to a glowing water plasma.
Online since: October 2010
Authors: Ming Tao Run, Li Jie Guo, Qing Chang Zhang, Yu Zhong, Qing Han, Yan Ping Hao
Rheological Properties of PTT/POE/OMMT Composites Mingtao RUN a, Lijie GUO b, Qingchang ZHANG c, Yu ZHONG d, Qing HAN e, Yanping HAO f College of Chemistry & Environmental Science, Hebei University, Baoding 071002, P.
Poly(ethylene-octene) (POE) is a kind of thermoplastic with controllable chemical structure, which shows good elasticity, toughness, transparency and plasticity, and thus is widely used in modifying of other plastics [7,8].
Online since: July 2011
Authors: Wen Tao Guo, Guo Wei Chang, Ji Chao Wang, Shu Ying Chen
The type, size and distribution of small size inclusions will effect on the structures and the properties of ductile cast iron.
Li: Physical Chemistry of Metallurgy and Material.
Online since: June 2014
Authors: Ji Lin Li, Yan Ming Zhang, Zhou Xuan, Hong Dao Zhang, Zheng Hong Li, Cheng Zhang
Fundamental and applied research in biology, chemistry and genetics has resulted in a constant flow of innovations and technical changes that have greatly influenced agricultural systems.
Among them chromosomal theory, explanation of mutations and also the discovery of DNA structure and function played an important role.
Online since: May 2015
Authors: P. Bhambhani, D. Kumar, K. Kabra, B.K. Sharma, G. Sharma
Sharma4,e 1Department of Physics, Banasthali University, Banasthali, 304022, India 2Department of Pure and Applied Physics, University of Kota, Kota, 324010, India 3Department of Chemistry, Banasthali University, Banasthali, 304022, India 4Faculty of Sciences, Manipal University Jaipur, Jaipur, 302007, India apoojagoklani@gmail.com Keywords: Hydrothermal and Microwave routes, Morphology, PbS crystal.
Lead sulfide is an IV-VI semiconductor with a cubic rocksalt structure.
Online since: October 2010
Authors: Tan Li, Chun Yan Zhang
The industrial structures of SXC are quite similar to each other with a 92% industrial convergence.
In a new round of high- tech industrial race the three cities have all announced to develop telecommunication, software, network technology, pharmaceutical and fine chemistry industries respectively by themselves instead of promoting to the height of joint development and forming competitive advantage in regional industries.
Lower Industrial Structure Level and Hysteretic Third Industry Development.
Development Direction for the Regional Industrial Integration in SXC Establishment of Leading Industries and Gradient development of Industrial Structure.
Quickening of Manufacturing Industrial Structure Upgrading and Improvement of Scientific Innovative Ability.
Online since: November 2024
Authors: Oussema Kachouri, Julien Bardon, David Ruch, Abdelghani Laachachi
Complex composite structures used in the aerospace, automotive or wind-energy sectors are often composed of joined/bonded parts or are multimaterial, e.g. sandwich structures with CFRP skins and aluminium/Kevlar honeycomb cores or fibre-metal laminates.
A first step towards recycling structures that incorporate composite materials is the ability to isassemble this structure into elementary parts, thereby separating composite materials both from each other, and from other adherents.
Technical solutions to disassemble a multi-material structure are therefore necessary.
· Investigation of chemical structure using Infrared Spectroscopy (IR)
Eds., Fire retardancy of polymers; The use of intumescence, The Royal Society of Chemistry, Cambridge, UK, 1998
Online since: April 2013
Authors: Xing Hong Wang, Fang Yuan Guo, Chun Mei Xu
The research goal of this paper is reducing damage of low permeability gas reservoir, utilizing the natural cores which from low permeability gas reservoir as ex-periment model, based on similarity theory conducting the fluid-structure interaction experiment of reservoir fluid and injection working fluid with cores, the experimental results show that the effect of gas well reservoir fluid and external fluid with cores, it is inevitable to produce water locking mechanical for the cores which from low permeability gas reservoir, and carry out the corresponding control measures experiment research, and put forward that add alcohol to injection fluid can inhibit water locking.
The same to use formation water and methanol for low permeability gas reservoir conduct fluid-structure interaction experiment.
Handbook of Chemistry and physics [M].