There were two similar series of burst waiting time experiments carried out on Godiva-II and Caliban respectively analyzed for neutron initiation study, unfortunately both the strength spontaneous fission source given in published papers are not consistent with data U-235 U-238. In this paper, discrepancies U-238 from different references reviewed clarified correct calculated respectively, then...

the old newsprint, as an important grade of waste papers, usually has been produced from chemicalmechanical pulp (cmp). although the effect of paper aging on different properties of recycled pulp has been investigated from long time ago; but, few studies have been observed about the effect of this phenomenon on recycling of cmp paper. in this study, accelerated aging was applied on hardwood cmp...

background & objectives: neutrophils are the most important member of granulocytes & the first line of host defence against micro-organisms. they kill micro-organisms entering the body by phagocytic activity. one of the important phases of phagocytic activity is respiratory burst which can be effected by different drugs such as cimetidine. in this study the effects of cimetidine on respiratory ...

in this research, the chemimechanical pulps (cmp) with different yields were prepared by using the mixtures of constant raw materials comprising iranian hardwood species such as hornbeam (44%), poplar (31%), maple (15%) and salix (10%). this research was aiming to study cmp pulp properties variations in yields lower than standard limit (85%). four different yields (84, 80, 73 and 67%) were achi...

Certain cells in the brain, for example, thalamic neurons during sleep, show spike-burst activity. We study such spike-burst neural activity and the transitions to a synchronized state using a model of coupled bursting neurons. In an electrically coupled network, we show that the increase of coupling strength increases incoherence first and then induces two different transitions to synchronized...

to compensate for some inferior properties of recycled papers, application of processing chemical aids such as chitosan can be quite effective in the wet end section of papermaking. in this study, the performance of chitosan biopolymer, individually or associated with nanobentonite was investigated as wet end additive on recycling process of white cuttings. for this purpose, the performance of ...

Cellulosic paper is thermolabile and its strength properties tend to decrease under high temperature conditions. In this work, the effects of aluminum trihydrate filler on the tensile and burst strength of paper prepared from bleached wood pulps were investigated. The use of aluminum trihydrate maintained the tensile and burst strength of paper sheet dried at 200 °C for 4 hours. Thermogravimetr...