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The current work presents the simulation of tool life in high speed Hard Turning (HSHT) of AISI 4340 hardened steel using artificial neural networks. An experimental investigation was carried out using ceramic cutting tools, composed approximately of Al2O3 (70%) and TiC (30%) on AISI 4340 heat treated to a hardness of 60 HRC. A new model was adjusted to predict tool life for different values of cutting...
Electrical and thermal conductivity of electrode materials in Electrical Discharge Machining (EDM) is the main factors that determine the suitability of these electrodes. These electrodes are usually made from graphite, copper and copper alloys because these materials have high electrical and thermal conductivity in additional to high melting temperature. The objective of this paper is to simulate...
Considering that the amount of money spent for implementing digital library is very high, it is therefore very crucial to evaluate its effectiveness. Since the implementation of digital library in the University of Tehran, Iran, no attempt has been made to evaluate its effectiveness. Against this concern, a study was carried out to investigate the effectiveness of the digital library from the user...
For any digital watermarking system many requirements should be available. The most important requirements are imperceptibility (quality), and robustness. Many studies have tried to enhance these requirements by using different techniques and methods. In this study, a trade-off between the two requirements to find the optimal value based on the existing Dual Intermediate Significant Bit (DISB) and...
In this work, we have performed sensitivity analysis on a large-scale dynamic metabolic network through MATLAB program. Time profile for sensitivity indices have been calculated for each kinetic parameters, based on percentage. The sensitivity analysis has been carried out on dynamic model for Glycolysis, Pentose Phosphate, TCA cycle, Gluconeogenesis, Glycoxylate pathways and Acetate formation of...
Considering that very few studies have actually addressed the aspect of trust with all the three categories of trustee i.e. the retail banks, the mobile telecommunication provider and the mobile telephone in one single study, this study attempts to address this gap. In addition the study also seeks to investigate the impact of mobile banking utilization on satisfaction and loyalty. Adopting a survey...
Work in indoor positioning so far broadly relies on either signal propagation models or location fingerprinting. The former approach has inherent modelling complexity as a result of intervening walls and movement in the environment which, impacts the accuracy of such models. The latter approach on the other hand, is acclaimed to give better accuracy. However, for it to be used, an added overhead of...
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