Print ISSN: 1681-6900

Online ISSN: 2412-0758

Keywords : Statistical Analysis

Automated Analysis of Comments on Press Articles in Websites (Articles Literature as Case Study)

Afra A. Abdulrahman; Abdul Monem S. Rahma

Engineering and Technology Journal, 2020, Volume 38, Issue 2B, Pages 74-84
DOI: 10.30684/etj.v38i2B.1451

Due to the increasing electronic publishing sites for printed and certified newspapers, the reader faced the problem of reaching his goal by accessing these sites, which led to the neglect of a large section of important publications. The provision of an automated measure to verify the positive and negative articles based on the analysis of readers' comments on the articles is a necessity to see the important articles that are compatible with the corpus generated by us for inference. The project achieved the previous target and achieved a success rate. The Bag-of-Words Model (BoW) was used to obtain the repetition of the block of words to build the corpus. The proposed system is evaluated based on four metrics (Accuracy= 93%, Precision= 94%, Recall= 94% and F-measure= 94%). The effectiveness results obtain by this system was (Accuracy, Precision and Recall and F-measure).

Fluoride Removal from Aqueous Solutions By Adsorption with Coal Ash

Neran K. Ibrahim; Shaymaa H. Khazaal

Engineering and Technology Journal, 2010, Volume 28, Issue 18, Pages 5771-5781

Dynamic adsorption studies were performed to study the suitability of coal ash to remediate fluoride-contaminated water. A series of experiments were conducted with aqueous solutions containing 2.5, 5, 10, 50 and100 mgF-/ℓ at 29 oC in a column packed with 500g of coal ash. The flow rate through the bed was 2 mℓ/hr. The effects of contact time, initial adsorbate concentration and sorbent particle size range on fluoride removal efficiency were studied. Better removal efficiencies were obtained with lower particle size ranges. The F- concentration in
the effluent gradually decreased reaching 0 mg/ ℓ after 96-168 hours depending on the initial adsorbate concentration. The kinetic results showed that defluorination follows first order kinetics. An empirical formula was proposed to describe the relationship between the fluoride removal efficiency and the dependent operating variables with 95% confidence level.