NIRS Characterization of Paper Pulps to Predict Kappa Number [PDF]
Journal of Spectroscopy, 2015 Rice is one of the most abundant food crops in the world and its straw stands as an important source of fibres both from an economic and an environmental point of view.
Ana Moral +3 more
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The Effect of H-Factor on Kappa Number and Viscosity in Continuous Digester [PDF]
CHEESA, 2023 One of the most important steps in pulping is the cooking process, which serves to separate the cellulose and hemicellulose from lignin and other by-products.
Rizka Wulandari Putri +2 more
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A CORRELATION BETWEEN THE KAPPA NUMBER AND THE VENTORIM INDEX IN THE BLEACHING PROCESS [PDF]
Revista ÁrvoreThe determination of the kappa number in the bleaching process is typically conducted with a pulp quantity between 3 and 4 grams, allowing for the calculation of values above four. However, after the oxidative extraction stage with hydrogen peroxide, the
Vitor Hideyoshi Hayashida Ribeiro +5 more
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Physics-Guided Multi-Task Learning for Small-Sample Soft Sensing: Simultaneous Prediction of Kappa Number and Viscosity in Continuous Kraft Pulping [PDF]
SensorsIn continuous kraft pulping, key quality indicators such as Kappa number and pulp viscosity are usually measured offline at low frequency, which limits real-time quality monitoring and control.
Bing Zhang +3 more
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Effect of the number of non-conforming samples on the Kappa indicator values [PDF]
MATEC Web of Conferences, 2018 Evaluate the quality of this measurement system is possible by using multiple methods, which are described in the methodology guides for evaluation of the measurement system quality.
Klaput Pavel, Vykydal David
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Impact of impregnation on high kappa number hardwood pulps
BioResources, 2011 Mixed US southern hardwood chips were impregnated and cooked under various conditions in the laboratory. Kappa numbers between 15 and 55 were obtained. The reject content, kappa number, and yield were studied as a function of time, temperature, and alkali charge in the cooking.
PETER W. HART +3 more
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The number of L_{infty,kappa}-equivalent non-isomorphic models for kappa weakly compact [PDF]
, 1999 For a cardinal kappa and a model M of cardinality kappa let No(M) denote the number of non-isomorphic models of cardinality kappa which are L_{infty,kappa}--equivalent to M. In [Sh:133] Shelah established that when kappa is a weakly compact cardinal and mu<=kappa is a nonzero cardinal, there exists a model M of cardinality kappa with No(M)=mu.
Saharon Shelah, Pauli Väisänen
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Effect of Kappa Number Variation on Modified Pulping of Eucalyptus
BioResources, 2016 This work evaluated the impact of brownstock pulp kappa number variations on modified pulping process, oxygen delignification, bleaching, and the physical characteristics on bleached pulp.
Tiago Edson Simkunas Segura +3 more
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Kappa ($\kappa$): The Largest Real Number, Constructed Through Limit Theory
We construct a real number $\kappa$, defined as the limit of the predecessor function $f(n) = n - 1$ as $n \to \infty$. The central argument is straightforward: \textbf{in mathematics, the limit of a function or sequence, when it exists as a value, is a real number.} Since $\kappa$ is defined as such a limit, it IS a real number.
Kaoru Aguilera Katayama
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The impact of kappa number composition on eucalyptus kraft pulp bleachability [PDF]
Brazilian Journal of Chemical Engineering, 2007 Consumption of chemicals during ECF bleaching of kraft pulp correlates reasonably well with kappa number, which measures with KMnO4 the total amount of oxidizable material in the pulp. However, the method does not distinguish between the oxidizable material in residual lignin and other structures susceptible to oxidation, such as hexenuronic acids ...
M. M. Costa, Jorge Luiz Colodette
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