Results 11 to 20 of about 310,828 (287)
BioResources, 2014 A total of 120 Acacia melanoxylon R. Br. (Australian blackwood) stem discs, belonging to 20 trees from four sites in Portugal, were used in this study. The samples were kraft pulped under standard identical conditions targeted to a Kappa number of 15.
António J.A. Santos +4 more
doaj +3 more sources
Kappa number prediction based on cooking liquor measurements [PDF]
, 2004 Abstract CLA 2000 Cooking Liquor Analyzer gives on-line information on cooking reactions during a cook. Alkali, total dissolved solids and lignin contents are measured during individual cooks in a batch digester house and from several circulations in a continuous digester.
Lemmetti, A. (Antti) +2 more
core +3 more sources
Improvement of Pulping Uniformity by Measurement of Single Fiber Kappa Number [PDF]
, 2001 A method to measure the kappa of single fibers by staining with a fluorescent dye, Acridine Orange (AO), has been developed. This method is now applied to develop and automated flow-through instrument that permits routine kappa analysis on thousands of images of AO stained fibers to give the fiber kappa number distribution of a pulp sample in a few ...
Gustafson, Richard R., Callis, James B.
openaire +3 more sources
New Interpretations of Cohen’s Kappa
Journal of Mathematics, 2014 Cohen’s kappa is a widely used association coefficient for summarizing interrater agreement on a nominal scale. Kappa reduces the ratings of the two observers to a single number.
Matthijs J. Warrens
doaj +2 more sources
Evaluation of pulp properties produced from rice straw by combination the monoethanolamine and potassium hydroxide [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2015 In this research, rice straw was used as raw material. Potassium hydroxide was combined with monoethanolamine (MEA) as liquor. In another processes NaOH/Na2So3, KOH/K2So3 and KOH 14% was used as references pulp. The results showed that using pure MEA(15%)
Farzaneh Shiralizadeh +2 more
doaj +1 more source
Pulping and paper making properties of Populus costanzo [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2010 In this Investigation chemical, physical, morphology, pulp and paper making characteristics of Populus costanzo were studied. The average dry and critical specific gravity was found to be 0.39and 0.36 and the fiber morphology including fiber length ,
Abas Fakhryan +3 more
doaj +1 more source
Investigation the properties of radiata pine (pinus radiata) wood kraft pulp and paper [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2014 In this study, pulp and handsheets characteristics of radiata pine wood kraft pulp was evaluated. The ratiata pine wood was collected from Chamestan Noor Research Station.
Abas Fakhryan
doaj +1 more source
Investigating the effect of using oxygen delignification process on bagasse soda pulp properties [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2016 In conducting environmentally friendly processes for pulp production, first step is to reduce the effluent pollution load in each stage, and because the bleaching process is the most polluting stage in the production of pulp, improving it is one of the ...
Farhad Zeinaly +3 more
doaj +1 more source
BioResources, 2022 Hemicelluloses consume alkali during kraft pulping and dissolve in the black liquor as a low energy fuel. Acidic pre-hydrolysis of softwood chips removes hemicelluloses but preserves cellulose content prior to pulping.
Jingqian Chen +4 more
doaj +2 more sources
The chemopreventive polyphenol Curcumin prevents hematogenous breast cancer metastases in immunodeficient mice [PDF]
, 2007 Dissemination of metastatic cells probably occurs long before diagnosis of the primary tumor. Metastasis during early phases of carcinogenesis in high risk patients is therefore a potential prevention target.
Iancu, Cristina M. +9 more
core +1 more source