The suitability of Newsprint and Kraft papers for the production of cement bonded ceiling board was investigated. Sample boards were produced from newsprint paper (100%), mixture of newsprint and Kraft paper (50:50) and Kraft paper (100%) at 1:1, 2:1 and 3:1 cement/paper mixing ratio respectively with 3% additive concentration of calcium chloride (CaCl2). Density, flexural and thickness swelling properties of the boards were investigated. The effects of paper type and mixing ratio on the physical and mechanical properties were also examined. The bending properties of the board which include Modulus of Elasticity (MOE) and Modulus of Rupture (MOR) increased linearly with increase in density. Modulus of rupture of boards increased as the density and mixing ratio increased. The thickness swelling property for the two paper types decreased as the board density and mixing ratio increased. Boards made from Kraft paper recorded higher strength values than the ones made from recycled newsprint paper while the mixture of kraft and newsprint papers had the best surface finish. The result of the study will help in managing the large quality of waste from paper converting/carton industry and that the ceiling boards produced could be installed with clout nails or used with suspended ceiling fittings.
This paper suggests using smartphones and community GPS application to make alerts more accurate and therefore positively influence the entire warning process. The paper is based on formerly published paper describing a Radio-HELP system. It summarizes existing methods and lists the advantages of proposed solution. The paper analyzes the advantages and disadvantages of each possible input, processing and output of the warning system.
Increasing use of cell phone as a medium of human
interaction is playing a vital role in solving riddles of crime as well.
A young girl went missing from her home late in the evening in the
month of August, 2008 when her enraged relatives and villagers
physically assaulted and chased her fiancée who often frequented her
home. Two years later, her mother lodged a complaint against the
relatives and the villagers alleging that after abduction her daughter
was either sold or killed as she had failed to trace her. On
investigation, a rusted cell phone with partial visible IMEI number,
clothes, bangles, human skeleton etc. recovered from abandoned well
in the month of May, 2011 were examined in the lab. All hopes
pinned on identity of cell phone, for only linking evidence to fix the
scene of occurrence supported by call detail record (CDR) and to
dispel doubts about mode of sudden disappearance or death as DNA
technology did not help in establishing identity of the deceased. The
conventional scientific methods were used without success and
international mobile equipment identification number of the cell
phone could be generated by using statistical analysis followed by
This paper aims to build an Arabic learning language tool using Flash CS4 professional software with action script 3.0 programming language, based on the Computer Aided Language Learning (CALL) material. An extra intention is to provide a primary tool and focus on learning Arabic as a second language to adults. It contains letters, words and sentences at the first stage. This includes interactive practices, which evaluates learners’ comprehension of the Arabic language. The system was examined and it was found that the language structure was correct and learners were satisfied regarding the system tools. The learners found the system tools efficient and simple to use. The paper's main conclusion illustrates that CALL can be applied without any hesitation to second language learners