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Artificial Intelligence Revolution: The Need for a Regulatory and Governance Framework in Dentistry
Journal of Dental Education, EarlyView.
Ehsan Jozaghi
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Immune Defense Mechanisms of the Dental Pulp
Critical Reviews in Oral Biology & Medicine, 1998Defense reactions of the dentin/pulp complex involve a variety of biological systems, in which the immune system plays a pivotal role. The knowledge of the organization and function of pulpal immunocompetent cells has been sparse, but in recent years a significant body of information of immune mechanisms in general has provided a footing for ...
M, Jontell +3 more
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The Mechanism of Hornification of Wood Pulps
Trans. of the Xth Fund. Res. Symp. Oxford, 1993, 1993Hornification is the loss of swelling of the fibre wall resulting from a drying-and-rewetting cycle: it is associated with a stiffening of the fibres which reduces their ability to form inter-fibre bonds. In this paper,factors affecting the extent of hornification are examined using the solute exclusion technique to measure swelling.
G. V. Laivins, A. M. Scallan
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Swelling of mechanical pulp fines
Cellulose, 1999The objective of the study was to determine the swelling of different types of mechanical pulp fines. The physical and chemical characteristics of the fines were also examined. It was found that the degree of swelling correlates with the proportion of fibrillar material, that is fibrillar content of the fines.
Kari Luukko, Thad C. Maloney
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Experiments on Specific Energy and Pulping Quality of Extrusion Mechanical Pulping
Key Engineering Materials, 2011In order to select rational screw parameters for improving the pulping quality, efficiency and reducing specific energy, the paper studied the effects of the rotational speed of screw, lead number of reverse thread and slot width of reverse flight of the twin screw pulping extruder (TSPE) on specific energy, flux and pulping quality (reject rate, fiber
Xiao Yang Shen +3 more
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Use of Enzymes in Mechanical Pulping
2018Mechanical pulping process is an energy-intensive process. Enzyme treatment of wood and pulp is an attractive alternative to reduce energy demand in the refining process and to introduce novel functional properties of fibers. This chapter discusses the use of enzymes in mechanical pulping process.
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Electro-brightening of mechanical pulp
2009The electro-oxidation of sodium carbonate (Na₂C0₃) to percarbonate (C₂O₆²⁻), with its subsequent hydrolysis was investigated as a means to produce peroxide and to drive the in-situ electrochemical brightening of thermo-mechanical pulp. The conditions for the electrochemical production of peroxide and factors that affected the in-situ electrochemical ...
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Bleaching of mechanical pulps: Implications of demethylation of pectin for pulp brightness
Appita Annual Conference Proceedings, 2005Dithionite bleaching of mechanical pulps and fractions thereof could be boosted by enzymatic pretreatment with pectinmethylesterase (PE). As a consequence of hydrolytic action of PE partial demethylation of pectin occurred with a concurrent release of methanol and increase in pulp charge.
Pere, Jaakko +4 more
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MECHANICAL PULPING: Latency removal of mechanical pulps: Phenomenological observations
Nordic Pulp & Paper Research Journal, 2013Jiyang Gao +3 more
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Gap mechanics in pulp refiners
TAPPI JournalStudies of pulp refining have shown that a single bar impact on pulp has only a 1%•5% probability of producing a successful refining effect. This study has explored the reason why. An analysis of refining kinetics suggested that small segments of a fiber length, about a fiber diameter in size, are treated during each impact.
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