A Comparative Thermodynamic Analysis of Organic Rankine Cycles (ORC) and Kalina Cycle for Low-Grade Energy Resources
Exergy Efficiency and Exergy Destruction Assessment of Heat Transfer and Fluid Flow through Spiral Passages using Source-Sink Model
Innovative Approach: Empowering Contextual Consulting in Industry 4.0 through a Hybrid Data Analytics Framework
Study of Corrosion and its Preventive Measures
Green Hydrogen Feasibility in Oman
Chemistry and Chemical Engineering: Approaches, Observations, and Outlooks
Integration of PMS Software and Decision Matrix Tool Based on Data Acquired from Latest IT Advanced Sensors and 3D CAD Models in Marine Operations Field
Dynamic Changes in Mangrove Forest and Lu/Lc Variation Analysis over Indian Sundarban Delta in West Bengal (India) Using Multi-Temporal Satellite Data
The Impacts of Climate Change on Water Resources in Hilly Areas of Nepal
Development and Performance Evaluation of Magnetic Abrasive Finishing Setup for Thick Cylinders
An Analysis of Machining Forces On Graphite/Epoxy, Glass/Epoxy and Kevlar/Epoxy Composites Using a Neural Network Approach
Deformation Behaviour of Fe-0.8%C-1.0%Si-0.8%Cu Sintered P/M Steel during Powder Preform Forging
A Series of Tool-Life Studies on Aluminium Matrix Hybrid Composites
Achieving Manufacturing Excelence by Applying LSSF Model – A Lean Six Sigma Framework
Design and Analysis of Piezo- Driven Valve-Less Micropump
Formation of blood clots and plaque in blood vessels, such as in coronary artery disease (CAD), are examples of blood vessel disorders which result from the accumulation of blood components on blood vessel walls. These disorders are progressive and advance with age; however, they may go unnoticed until an unexpected death occurs. A better understanding of these diseases and the mechanisms which may be responsible will be extremely helpful in preventing their initiation and progression. The objective of this study was to examine if the effect of the Earth’s magnetic field on the electrically charged blood components could explain the accumulation of blood components and formation of plaque and blood clots on vessel walls. An in-depth understanding of such mechanism(s) could offer new methods for treatment or prevention of plaque and blood clot formation in the human vascular system.
In this paper the effects of radiation on a free convection flow bounded by a vertical surface embedded in porous medium is studied. The problem is solved analytically and the expressions for velocity, temperature, concentration, skin friction and rate of heat and mass transfer are derived and the effects of various physical parameters like radiation parameter F, Grashof number Gr, modified Grashof number Gm, Prandtl number Pr, permeability of the porous medium k are studied though graphs and tables.
Hydroxyapatite [Ca10(PO4)6(OH)2; abbreviated as HAp] is an inorganic compound whose chemical composition is similar to the composition of bone. It is a material used for biomedical applications such as a bone substitute material in orthopedics and dentistry due to its excellent biocompatibility, bioactivity and osteoconduction properties. The aim of the research is to investigate the possibility of extracting hydroxyapatite powder from the bovine’s bone. All the tests were carried out on the powder prepared by burning bovine’s femur and then using heat treatment for the bone ash. X-ray diffraction analysis, Fourier transform infra-red spectroscopy, particle size analyzer, and atomic absorption spectroscopy were used to test the resulted powder. The results showed that the extracted white powder was hydroxyapatite and did not contain any other organic components of the bone.
In this study, Calophyllum inophyllum (Punnai) seed oil is used to obtain biodiesel through a two step base catalyzed transesterification process. CIO generally contains a 12% of free fatty acids which interrupts the transesterification reaction and results in the formation of soap. In the first step, the FFA content is reduced to 2% by adding 0.1% sulphuric acid in the presence of methanol. In the second step, the product of the first is mixed with Potassium hydroxide to form mono methyl ester and glycerol. It is observed that the physio-chemical properties of CIOME lie closely within the ASTM standards with a significant variation in calorific value. The study confirms that CIOME can be a suitable alternative for petro-diesel.
In the present work, coconut shell powder obtained from waste coconut shells was used to remove a textile dye-Methylene Blue [MB] from an aqueous solution by adsorption technique under varying conditions of contact time, pH, initial dye concentration, adsorbent particle size, adsorbent dosage, and temperature. The dye adsorption experiments were carried out in a batch process. Experimental results showed that increase in contact time, pH, temperature, adsorbent dosage, and decrease in initial dye concentration, adsorbent size favored the adsorption. The dye adsorption equilibrium was attained at 40 minutes of contact time. Equilibrium data are mathematically modeled using the Langmuir, Freundlich, Temkin and Redlich-Peterson isotherm models. The adsorption kinetics of Methylene Blue has also been studied in terms of pseudo- first- order and pseudo- second order. In order to predict the nature of the adsorption, free energy of adsorption (?G), change in enthalpy (?H) and entropy change (?S) were estimated. The results confirmed that the coconut shell powder is an efficient adsorbent for the removal of basic dye, Methylene Blue.
Digital data are so widely used because they are easy to store, transfer and duplicate with high quality. However, the convenience also facilitates the access of malicious users to produce unauthenticated and pirate copies of the original work. There are two typical digital data protection techniques: cryptography and watermarking. Watermarking can be used both in transmission and for data usage. In addition, cryptography aims to modify every single bit of the original data. In Digital Watermarking the aim is to embed a code consisting of bits into a cover media, representing image, audio, video or graphics information. Digital watermarking is generally considered as a copyright protection technique. In this paper we propose free-view watermarking, this method mainly focuses on the watermark insertion and extraction stages for the static scenes, consisting of only a single object which forms the fundamental case in the development of IBR technology. As a future research direction, the extension of the solution for dynamic scenes with multiple objects could be examined, in which different rendering and interpolation techniques are being used.
Associative classifiers are new classification approach that use association rules for classification. An important advantage of these classification systems is that, using Association Rule Mining (ARM) they are able to examine several features at a time. While other state of art methods like decision tree or naïve bays classifiers consider that feature is independent of each other. Many applications can benefit from good classification model. Associative classifiers are especially fit to applications where the model may assist the domain experts in their decisions. Medical diagnosis is a domain where the maximum accuracy of the model is desired. In this paper, we propose a framework (associative classifier) that uses weighted association rule mining (WARM). In any prediction model all attributes do not have same importance in predicting the class label. So different weights can be assigned to different attributes according to their predicting capability. Experiments have been performed using three Medical data set (UCI Machine learning dataset) and the results reveal that by assigning weight to the attributes the prediction accuracy improves. The average accuracy is better as compare to other associative classifiers i.e. CBA, CMAR and CPAR. The result reveals that WAC is a promising alternative in medical prediction and certainly deserves further attention.
