Search Results

You are looking at 1 - 10 of 569 items :

  • "Electrostatic charge" x
Clear All

[1] Money N.P., More g’s than the Space Shuttle: ballistospore discharge, Mycologia, 1998, 90, 547–558 [2] Pringle A., Patek S.N., Fisher M., Stolze J., Money N.P., The captured launch of a ballistospore, Mycologia, 2005, 97, 866–871 [3] Buller A.H.R., Researches on Fungi, Vol. 1, Longmans, London, 1909 [4] Gregory P.H., Electrostatic charges on spores of fungi, Nature, 1957, 130, 330 [5] Swinbank P., Taggart J., Hutchinson S.A., The measurement of

[1] Buller A.H.R., Researches on fungi, I, An account of the production, liberation, and dispersion of the spores of hymenomycetes treated botanically and physically, Also some observations upon the discharge and dispersion of the spores of ascomycetes and of Pilobolus, Longmans, Green & Co., London, 1909 [2] Gregory P.H., Electrostatic charges on spores of fungi, Nature, 130, 330, 1957 [3] Swinbank P., Taggart J., Hutchinson S.A., The measurement of the electrostatic charges on spores of Merulius lacrymans (Wulf.) Fr., Ann Bot

the major contributor to ligand “binding”, is positively charged [5, 77–80]. This positive charge extends far enough and renders RAGE an electrostatic trap for its negatively charged ligands [5, 77, 79–82]. Also, there is strong evidence that RAGE interacts with the negatively charged patches of AGE-modified proteins [5, 79, 80]. In addition, electrostatic charge modifications alter RAGE-ligand interactions and downstream cell signaling pathways, affecting major cell functions such as adhesion, migration and proliferation [81, 82]. The existing differences in

440 Nordic Pulp and Paper Research Journal Vol 19 no. 4/2004 KEYWORDS: Bonded area, Chemical bonds, Dry strength, Electrostatic charge, Joints, Regenerated cellulose, Strain, Swelling SUMMARY: A study was undertaken to explore the influence of electrostatic interactions between the fibres during sheet for- ming and sheet consolidation on the strength of both the fibre/fibre joints and the paper. To establish this relationship, the joint strength between individual fibres was determined and compared with the strength of sheets made from these corres- ponding

Study of the joint strength between regenerated cellulose fibres and its influence on the sheet strength Annsofie Torgnysdotter and Lars W5gberg, Mid Sweden University, Sundsvall, Sweden KEYWORDS: Bonds, Bonding strength, Bonded area, Fibre bonding, Chenlical bonding, Electrostatic charge, joints, dry strength, strain, swelling SUMMARY: The joint strength between single fibres was inve- stigated directly by measurements of perpendicular cross bon- ded fibres and compared with the corresponding paper properti- es. Regenerated cellulose fibres, rayon, were

Adsorption of cationic potato starch on cellulosic fibres Lars Wdgberg and Mirjam Bjorklund, SCA Research AB, Sundsvall, Sweden Keywords: Adsorption, Cationic compounds, Starch, Cellu- lose fibers, Surface properties, Electrostatic charge, Fines. SUMMARY: The present investigation has shown the great importance of the cellulosic fines for the adsorption of starch onto bleached kraft pulps. In contrast to previous findings, the present results have shown that both the amount and the type of cellulosic fines are important for the adsorption of high

On the mechanism behind wet strength development in papers containing wet strength resins Lars Wiigberg and Mirjam Bjorklund, SCA Research AB, Sundsvall, Sweden Keywords: Adsorption, Wet strength agents, Bonding strength. Infrared spectra, Mechanical properties, Chemical pulps. Car- boxymethylation. Electrostatic charge, Swelling. Bonded area, Polyelectrolytes. SUMMARY: The improvement in strength when a polyamide- amine epichlorohydrine (PAE) polymer is added to a number of carboxymethylated pulps has been investigated in order to see whether or not

.1016/j.ijpharm.2012.02.040. 20. J. Zheng, Formulation and Analytical Development for Low-Dose Oral Drug Products, John Wiley & Sons, New Jersey 2009, pp. 169-196. 21. J. Hilden, M. Schrad, J. Kuehne-Willmore and J. Sloan, A first-principles model for prediction of product dose uniformity based on drug substance particle size distribution, J. Pharm. Sci. 101 (2012) 2364-2371; DOI: 10.1002/jps.23130. 22. Y. Pu, M. Mazumder and C. Cooney, Effects of electrostatic charging on pharmaceutical powder blending homogeneity, J. Pharm. Sci. 98 (2009) 2412-2421; DOI: 10.1002/jps

chains of Be03(OH) and Si04 tetrahedra linked by Al-0 bonds. The differences between the two structures are due prin- cipally to the difference in electrostatic charge distribution between a structure containing Mn and P and a structure containing Al and Si. During mineralogical investigation of the rare mineral vayrynenite, (Mn+2, Fe+2) Be(P04)(OH), a search of Crystal data (Donnay and Nowacki, 1954) revealed that vayrynenite and euclase, AlBe(Si04)(OH), have very close cjb ratios and relatively close a\b ratios. This ob- servation, coupled with the fact that both

polyimide films prepared by the imidization of polyamic acid (PAA) and pre-imidized polyimide (PI) solution were investigated. It is found that the current density of the polyimide film from PAA was higher than that of the polyimide film from PI at the same electric field, even though the conduction mechanism in both polyimide films follows the ionic hopping model. The hopping distance was calculated to be 2.8 nm for PAA type and 3.2 nm for PI type polyimide film. It is also found that the decay rate of the residual electrostatic charges on the polyimide films