Search Results

You are looking at 1 - 10 of 12,144 items :

  • "Particle size" x
Clear All

performed particle size study but at very low temperatures (28–56°C). Table 1: Literature review for tea infusion kinetics. Reference Tea material used Type of experiment/study Experimental conditions Research highlights/parameters evaluated [ 4 ] Mixture of black orthodox tea Equilibrium extraction (4 h) in sealed tube Liquid:Leaf::10, 20, 30, 50, 100, 200:1 (wt. ratio) Classification of tea components based on solubility (highly soluble, medium soluble and insoluble) [ 5 ] Mixture of black orthodox tea Kinetic study in fixed bed reactor Liquid:Leaf:: 4:1, 5

– 336. [39] Aktas S, Kalyon DM, Marin-Santibanez BM, Perez-Gonzalez J: Shear viscosity and wall slip behavior of a viscoplastic hydrogel, J. Rheol. 58 (2014) 513 – 535. [40] Chen L, Duan Y, Zhao G, Liu M: Effects of temperature, solid particle size and concentration on wall slip behaviour of coal-water slurry in pipelines, J. Chem. Ind. Eng. (China) 59 (2008) 2206 – 2213. [41] Vand, V: Viscosity of solutions and suspensions; theory, J. Phys. Colloid Chem. 52(1948) 277 – 299. [42] Soltani F, Yilmazer U: Slip velocity and slip layer thickness in flow of concentrated

Proc. Radiochim. Acta 1, 75–82 (2011) / DOI 10.1524/rcpr.2011.0013 © by Oldenbourg Wissenschaftsverlag, München Dependency of BET surface area on particle size for some granitic minerals By I. E. Dubois1,2,∗, S. Holgersson2, S. Allard2 and M. E. Malmström1 1 Industrial Ecology, Royal Institute of Technology (KTH), 10044 Stockholm, Sweden 2 Nuclear Chemistry, Chalmers University of Technology, 41296 Gothenburg, Sweden (Received December 22, 2009; accepted in final form November 11, 2010) Surface area / Particle size / Radionuclide / Magnetite / Plagioclase Summary

References 1. Baker, R. R. and M. Dixon: The Retention of Tobacco Smoke Constituents in the Human Respiratory Tract; Inhal. Toxicol. 18 (2006) 255-294. 2. Chang, P., L. K. Peters, and Y. Ueno: Particle Size Distribution of Mainstream Cigarette Smoke Undergoing Dilution; Aerosol Sci. Technol. 4 (1985) 191-207. 3. Davies, C. N.: Cigarette Smoke: Generation and Properties of the Aerosol; J. Aerosol. Sci. 19 (1988) 463-469. 4. Harris, E. and H. F. Kay: Size Distribution of Tobacco Smoke Particles; Nature 183 (1959) 741-742. 5. Martonen, T. B.: Deposition Patterns of

e-Polymers 2007, no. 018 ISSN 1618-7229 Stability and particle size of polypyrrole dispersion using sodium dodecylbenzenesulfonate as surfactant Shuangxi Xing*, Guoku Zhao Faculty of Chemistry, Northeast Normal University, Changchun, 130024, P. R. China; E-mail: (Received: 8 November, 2006; published: 14 February, 2007) Abstract: Polypyrrole (PPy) dispersion was prepared using FeCl3·6H2O as oxidant in the presence of sodium dodecylbenzenesulfonate (SDBS) as surfactant. The formation of the

sorption selectivity of calcite with extra fine particle size (<9μm), has proven to follow the sequence Cd>Zn Mn>Co>Ni>>Ba=Sr [ 3 ]. Pb adsorption on calcite with particle size, varying from 2 to 200 μm, has also proven effective, either by being strongly adsorbed on calcite surface or by precipitating as cerrusite, hydrocerrusite, plumbonacrite or hydroxy lead compounds [ 4 , 5 , 6 ]. In case of Zn a heterogeneous nucleation of Zn-bearing precipitate on calcite surface has been observed [ 7 ]. Limestone with very coarse particle size (2.36-4.75 mm) has also been

References 1. Appels, L., Baeyens, J., Degreve, J. & Dewil, R. (2008). Principles and potential of the anaerobic digestion of waste- -activated sludge. Progress in Energy and Combustion Science , 34 (6), 755-781. DOI: 10.1016/j.pecs.2008.06.002. 3. Friedrich, E., Friedrich, H., Heinze, W., Jobst, K., Richter, H.J. & Hermel, W. (1993). Progress in characterization of sludge particles. Wat. Sci. Tech. , 28 (I), 14S-148. 0273-1223193. 4. Olböter, L. & Vogelpohl, A. (1993). Influence of particle size distribution on the dewatering of organic sludges. Wat. Sci

Int. J. Nonlinear Sci. Numer. Simul., Vol. 13 (2012), pp. 189–194 Copyright © 2012 De Gruyter. DOI 10.1515/IJNSNS.2011.129 Effects of HMX Particle Size on the Shock Initiation of PBXC03 Explosive Li-Jing Wen,1;2 Zhuo-Ping Duan,1 Lian-Sheng Zhang,1; Zhen-Yu Zhang,3 Zhuo-Cheng Ou1 and Feng-Lei Huang1 1 State Key Laboratory of Explosion Science and Technol- ogy, Beijing Institute of Technology, Beijing, China 2 Nuclear and Radiation Safety Center, MEP, Beijing, China 3 College of Science, National University of Defense Technology, Changsha, China Abstract. A series

References 1. B. Johansson, F. Nicklasson and G. Alderborn, Effect of pellet size on degree of deformation and densification during compression and on compactability of microcrystalline cellulose pellets, Int. J. Pharm. 163 (1998) 35_48; DOI: 0.1016/S0378-5173(97)00355-4. 2. G. Alderborn and C. Nyström, Studies on the direct compression of tablets. IV. The effect of particle size on the mechanical strength of tablets, Acta Pharm. Suec. 19 (1982) 381_390. 3. A. McKenna and D. F. McCaffery, Effect of particle size on the compaction mechanism and tensile

 ℃, which means that Ba 2 Fe 2 O 5 can be repeatedly used as a novel CO 2 absorbent. Fujishiro et al. researched that kinetics and mechanism of chemical reaction of CO 2 and Ba 2 Fe 2 O 5 under various CO 2 partial pressures [ 13 ], in addition, the reaction of CO 2 and Ba 2 Fe 2 O 5 should be influenced by the size of powdered Ba 2 Fe 2 O 5 , but for now, relevant papers have not found. Multicycle property is also an important property for an outstanding CO 2 captor. Therefore, in this paper, we study particle size dependence of the reaction rate of the powered