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Electrical discharge abrasive grinding (EDAG) of ferrous alloys such as high speed steel and high carbon steel, using diamond abrasive demonstrates poor machining performance. The chemical affinity of diamond towards the ferrous alloys is the main reason for the same. In the present research, the performance of cubic boron nitride (CBN) abrasive has been investigated. The parametric analysis, modeling...
Manual field survey (with odometer) is the common practice for planning of a new Optical Fiber Cable (OFC) network from Central Office (CO) and Customer Premises (CP) location information collection (e.g. Latitude, Longitude, and Identity Tag) to OFC laying route selection. As 80–90% cost for the deployment of an OFC network goes in OFC laying [1] so the (optimization of complete OFC network is of...
This paper proposes a new PSO based method to solve optimization problems having discrete variables. The conventional PSO provides tentative solutions having continuous decision variables. The proposed discrete PSO (DPSO) method utilizes the inherent inability of PSO to solve problems with discrete variables. In the proposed method each of these tentative solutions generates a set of solutions with...
In this paper, we discuss portfolio rebalancing model wherein some parameters like expected return, risk, transaction cost etc., of the objective function and constraints lie in intervals. A methodology has been proposed to find an efficient portfolio in this scenario. Further, the proposed methodology is illustrated in a numerical example with the hypothetical data to show the applicability of the...
This paper proposes ITU-T fiber based technology specific mobile backhaul planning for rural India. More than 70% mobile towers of India are installed in rural areas. However, rural India lacks basic infrastructure e.g. connecting roads, electricity and mobile backhaul bandwidth to provide broadband services. In order to take the advantage of growing mobile technologies to address the digital divide...
Impact Ionization MOSFET (IMOS), has emerged to combat one of the most critical and fundamental problem of sub-threshold slope (SS) which cannot be lower than 60mV/decade at room temperature for conventional MOSFET, as conventional MOSFET works on the principle of diffusion of charge carrier for the current flow in the device. Whereas, the IMOS devices work on the principle of avalanche breakdown...
Machining of metal matrix composites (MMCs) has been a big challenge for manufacturing industries due to its superior mechanical properties. Unconventional machining methods have become an alternative to give desired shapes with intricate profiles and stringent design requirements. The present research investigates the grinding performance of copper–iron–graphite MMC using electric discharge diamond...
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