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
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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
Comparative study of delignification efficiency and pulp yield of heart wood and sap wood of Populus deltoids by kraft and soda processes [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2010 Comparative study of pulp yield of sap wood and heart wood of Populus deltoides under both Kraft and soda cooking process have been showed that the heart wood pulp has a lower yield than that of sap wood pulp.
Somayeh Ghasemi, Ahmad reza Saraeyan
doaj +1 more source
Pulping characteristics of Populus triplo wood [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2009 In this reseach, chemical, anatomical and pulping properties of 12 years old Populus.triplo of adapting plan and quantity properties of this tree from karaj research station were investigated.The average of fiber length ,diameter ,lumen and thickness of ...
Abbas Fakhryan roghani +5 more
doaj +1 more source
Creating materials with a desired refraction coefficient [PDF]
, 2009 A method is given for creating material with a desired refraction coefficient. The method consists of embedding into a material with known refraction coefficient many small particles of size $a$.
A. G. RAMM +8 more
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Investigating the effect of using oxygen delignification process on kenaf bast kraft pulp properties [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2018 The first act to ameliorate bleaching process is the major elimination of lignin. Actually, the use of oxygen delignification stage before bleaching process is the essential stage in improving bleaching process and reducing process emission.
Farhad Zeinaly +3 more
doaj +1 more source
Creating materials with a desired refraction coefficient: numerical experiments [PDF]
, 2010 A recipe for creating materials with a desired refraction coefficient is implemented numerically. The following assumptions are used: \bee \zeta_m=h(x_m)/a^\kappa,\quad d=O(a^{(2-\kappa)/3}),\quad M=O(1/a^{2-\kappa}),\quad \kappa\in(0,1), \eee where ...
Indratno, Sapto W., Ramm, Alexander G.
core +7 more sources
Investigation on Soda-Anthraquinone Pulping of Rapeseed Straw [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2009 This research is aimed to study the possibility of rapeseed straw (Hayolla401) pulping and its paper characteristics, using Soda-AQ process. The average fiber length was found 1.04 millimeter and the average fiber diameter, lumen and thickness were found
Said mohammad Mazhari mosavi +4 more
doaj +1 more source