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Showing posts from 2016

Engineering Journal: November 2016

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Radio Frequency Identification Technology in LibrariesAbstract— This paper is a baseline document to review the latest technologies, algorithms and available hardware that can be used to build and automate a library system using Radio Frequency Identification technology as the infrastructure, allowing the librarian to track and manage real-life objects. The purpose is to review the current research that have been accomplished around this area in order to produce the best possible design, and implementation of a robust solution with maximum efficiency to automate a library system. The article first provides an overview of the radio frequency identification technology, its history, radio frequency principle, and how distance and frequency can affect the signal coverage distance. Then radio frequency identification structure and types are explained, after that the paper evaluates the latest researches in the radio frequency identification infrastructure and middleware. Finally the issue …

Engineering Journal : IJOER: October Issue 2016

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On the Kinetics of Palm Oil CrystallisationAbstract— In this work the crystallisation of palm oil (a typical melt) is used as a model process and kinetic parameters at different end temperatures and cooling rates were evaluated using three model approaches: two from the traditional melt fractionation, one from the classic solution crystallisation. The objective was to establish critical understanding on the various model approaches and their applications. Differential Scanning Calorimetry (DSC) was used to obtain the melting temperatures, isothermal induction times and enthalpy of the crystallisation for the Fisher-Turnbull and Avrami model evaluations, while turbidity and temperature probes were utilized to generate metastable zone width as a function of cooling rates for the classical Nyvlt model analysis. Our results show that the Fisher-Turnbull and the Nyvlt models are useful in estimating the nucleation rate constants (kn) with reasonable agreement: this unites the model approac…

Engineering Journal : September 2016

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The Effects of Individualized Physical Rehabilitation ProgramAbstract—Objective: to evaluate the effects of long-term aerobic training, designed with individualized method based on lactate threshold definition, on exercise capacity, HF severity and ergoreflex activity.Methods: We evaluated 73 HF patients, mean age 53+/-1.8, 59 men, with NYHA class III, LVEF 40,8+/-0,3%. CPET performed on a treadmill ("Oxycon Pro" (Jaeger, Germany)) at baseline, in every 8 weeks and after 6 months. The cubital venous catheter was inserted before CPET. Blood samples were taken at baseline and at 1-minute intervals during test. Lactate concentration in blood was measured using analyzer i-STAT, cartridge CG4 (Abbot, USA). All patients were randomized into following groups: 50 patients of study group (SG), who underwent physical rehabilitation program (PRP), calculated due to lactate threshold; and 23 HF patients control group (CG), who underwent physical training, calculated based on VO2 percent…