in this work, old newspaper fibers (onf) bleached with h2o2, treated with koh and treated with naocl were investigated as potential adsorbents. the characterization of the produced fibers using ft-ir, sem and particle size distribution have been carried out and tested for the removal of ni (ii) from aqueous solutions. the results indicated that the fibers treated with koh give the highest %remo...

in this study, deinkability of old newspaper by conventional method and the effect of washing, flotation and combined washing/flotation processes were investigated on optical and superficial properties of the produced papers. the results from measuring of the optical and superficial properties indicated that using chemical treatment time of 20 minute and one stage washing resulted the papers wi...

this study was performed to investigate the effects of refining on the mechanical and optical properties of waste newspaper. waste newspapers were prepared from gorgan ettelaat newspaper agency and were cut to 5 centimeter pieces, and then were soaked with sufficient distillated water. after 1 day fibers were separated by disintegrator and freeness values for each pulp before and after refining...

due to the problems of deposition of sodium silicate on the equipment and decrease of the service age of implements, deinking of old newspaper was accomplished using organic complex of sulvy-x in place of sodium silicate. sulvy-x was used at four levels of 0.3, 0.5, 0.7 and 1% on the basis of oven dry waste paper and chemical deinking was done. the effect of various charges of sulvy-x was inves...

W oter an Att eeldt Wouter van Atteveldt http://vanatteveldt.com http://content-analysis.org Semantic Network Analysis is a technique in which the content of a message (such as a newspaper article) is extracted from text and represented as a network of semantic relations between actors and issues, which can be queried to look for specific patterns and answer various research questions. This tec...

The aim of the current study is to examine the influence of the victim's, perpetrator's, and participant's ethnicity on victim and perpetrator blame attributions. Additionally, comparisons between males and females and a community and student sample were made. Participants read a rape vignette in the form of a newspaper article and subsequently attributed victim and perpetrator blame. A 2 (vict...