More Structural Characterizations of Some Subregular Language Families by Biautomata [PDF]
Electronic Proceedings in Theoretical Computer Science, 2014 We study structural restrictions on biautomata such as, e.g., acyclicity, permutation-freeness, strongly permutation-freeness, and orderability, to mention a few.
Markus Holzer, Sebastian Jakobi
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Activity constraints and the emergence of non-scale-free networks: Evidence from hip-hop and academia. [PDF]
PLoS ONEPower-law distributions are widely used to characterize complex networks, yet recent work shows that scale-freeness is far less universal than once assumed, especially in social networks.
Jaemin Lee, Yujie Li
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Freeness of Signed Graphic Arrangements
AxiomsFreeness occupies an important position in the study of hyperplane arrangements. In this paper, we conclude the freeness of three special classes of signed graphic arrangements based on the addition–deletion theorem and Abe’s free path theory.
Zhaoting Ju, Guangfeng Jiang, Weili Guo
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On (non-) freeness of some tridendriform algebras [PDF]
Discrete Mathematics & Theoretical Computer Science, 2020 We present some results on the freeness or non freeness of some tridendriform algebras. In particular, we give a combinatorial proof of the freeness of WQSym, an algebra based on packed words, result already known with an algebraic proof.
Vincent Vong
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Effect of alkaline pre-treatment on physical, optical and mechanical properties of semi-chemical NSSC wheat straw pulp [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2013 In this study the effect of alkaline pretreatment with 1% NaOH on physical, optical and mechanical properties and refining of NSSC (Neutral Sulfite Semi Chemical) wheat straw pulp were investigated.
Soodeh Zhand +3 more
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Investigating the effect of pH on cellulase enzyme efficiency on the OCC pulp properties [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2018 The purpose of this study is to investigate the effect of pH on cellulase enzyme activity on the drainage and strength properties of OCC pulp. Recycled OCC pulp was pretreated with consistency 0.4 percent, in constant condition the temperature is 50˚C ...
Ghasem Asadpour +2 more
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Replacing imported long fiber pulp with kenaf bast fiber soda pulp to improve quality of paper made from bagasse soda pulp [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2008 We studied the possibility of replacing imported long fiber pulp (ILFP) with kenaf bast fiber soda pulp (KBFSP) to improve the quality of paper made with bagasse soda pulp (BSP).
Mohammadreza Dehghani Firouzabadi +2 more
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Note on quasi-polarized canonical Calabi–Yau threefolds
Comptes Rendus. Mathématique, 2020 Let $(X,L)$ be a quasi-polarized canonical Calabi–Yau threefold. In this note, we show that $\vert mL\vert $ is basepoint free for $m\ge 4$. Moreover, if the morphism $\Phi _{\vert 4L\vert }$ is not birational onto its image and $h^0(X,L)\ge 2$, then $L ...
Liu, Jie
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The impact of chemical treatment variables on fiber quality of Colza stem chemi-mechanical pulp [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2011 The impact of chemical treatment variables including treatment time and temperature, chemical charge as well as pulp freeness on fiber quality of Colza stem chemi-mechanical pulp was studied using Fiber Quality Analyzer (FQA).
Reza Hosseinpoor +4 more
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Effect of Refining Intensity on Pulp and Paper Properties Made of Eucalyptus Camaldulensis Wood [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2009 This study is for identifying of the effect of refining intensity on pulp and paper properties made from eucalyptuswood. For this purpose three normal eucalyptus camaldulensis spp trees were randomly cut down from Shastkolateh Experimental Forest ...
Behzad Kord
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