Kavikulguru Institute of Technology and Science

Rāmtek, India

Kavikulguru Institute of Technology and Science

Rāmtek, India
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Katpatal D.C.,Kavikulguru Institute of Technology and Science | Andhare A.B.,Visvesvaraya National Institute of Technology | Padole P.M.,Visvesvaraya National Institute of Technology | Khedkar R.S.,Institute of Chemical Technology
Journal of the Brazilian Society of Mechanical Sciences and Engineering | Year: 2017

In the present study, nanoparticles of surface-modified copper oxide and Jatropha oil are used to prepare stable nanolubricants of various concentrations by a two-step method. Viscosity and thermal conductivity of nanolubricants for different concentrations of CuO ranging from 0 to 5 wt% have been experimentally measured and strong dependence of both the properties on concentration of CuO in the Jatropha oil is observed. About 40 and 10% enhancement in viscosity and thermal conductivity of nanolubricant is observed for 5 wt% concentrations of CuO and the viscosity of nanolubricant comes closer to ISO VG46 mineral oil. Stability of nanolubricants at different temperatures has been checked by measuring viscosity at regular intervals of time and it is observed that stability decreases with increase of CuO loading. The experimental data of viscosity are matched with two viscosity models proposed by different authors, but the experimental data of viscosity and thermal conductivity are observed over prediction by classical theoretical models of viscosity and thermal conductivity. Based on the experimental data, various constants of correlations are calculated for predicting viscosity of CuO-Jatropha oil nanolubricants at various concentrations and temperatures. © 2017, The Brazilian Society of Mechanical Sciences and Engineering.


Parhad P.,Kavikulguru Institute of Technology and Science | Likhite A.,Visvesvaraya National Institute of Technology | Bhatt J.,Visvesvaraya National Institute of Technology
Transactions of the Indian Institute of Metals | Year: 2012

The response of inoculated low carbon equivalent iron to austempering heat treatment has remained as an unchartered area of investigation. The carbon equivalent of inoculated low carbon equivalent iron is much lesser than that of ductile iron, while modulus of elasticity is higher than it. This paper examines and compares the austempering transformations and microstructural changes during austempering of ductile iron and inoculated low carbon equivalent iron with respect to austempering parameters. The optical metallography and X-ray diffraction techniques are used to study the changes in the austempered structure. The alterations in austempered microstructure and structural parameters like, austenite volume fraction (X) and its carbon content (C) at an austempering temperature of 250°C are studied in the present investigation. It is observed that, austempering heat treatment produces fine ausferritic microstructure, similar to that present in austempered ductile iron at this temperature. However, some significant differences between the austempered microstructure of two alloys are noted. © Indian Institute of Metals 2012.


Dahake S.W.,Visvesvaraya National Institute of Technology | Kuthe A.M.,Visvesvaraya National Institute of Technology | Chawla J.,Government Dental College and Hospital | Mawale M.B.,Kavikulguru Institute of Technology and Science
Rapid Prototyping Journal | Year: 2017

Purpose: The purpose of this paper is to develop a workflow for design and fabrication of customized surgical guides (CSGs) for placement of the bidirectional extraoral distraction instruments (EDIs) in bilateral mandibular distraction osteogenesis (MDO) surgery to treat the bilateral temporomandibular joint ankylosis with zero mouth opening. Design/methodology/approach: The comprehensive workflow consists of six steps: medical imaging; virtual surgical planning (VSP); computer aided design; rapid prototyping (RP); functional testing of CSGs and mock surgery; and clinical application. Fused deposition modeling, an RP process was used to fabricate CSGs in acrylonitrile butadiene styrene material. Finally, mandibular reconstruction with MDO was performed successfully using RP-assisted CSGs. Findings: Design and development of CSGs prior to the actual MDO surgery improves accuracy, reduces operation time and decreases patient morbidity, hence improving the quality of surgery. Manufacturing of CSG is easy using RP to transfer VSP into the actual surgery. Originality/value: This study describes an RP-assisted CSGs fabrication for exact finding of both; osteotomy site and drilling location to fix EDI's pins accurately in the mandible; for accurate osteotomy and placement of the bidirectional EDIs in MDO surgery to achieve accurate distraction. © Emerald Publishing Limited.


Jakkula S.,Visvesvaraya National Institute of Technology | Deshpande V.,Kavikulguru Institute of Technology and Science
Ceramics International | Year: 2013

Glass samples with composition of (50-X) PbO-X MgO-25 TiO 2-25B2O3 (where X=0, 5, 10 and 15 mol%) were prepared using conventional quenching technique. The amorphous nature of glass samples were confirmed by XRD. The glass transition temperature, Tg and crystallization temperature Tc were determined from the DTA. It has been observed that the addition of MgO enhances the Tg. The rise in Tg with MgO content may be attributed to the greater field strength of Mg2+ cation (as compared to Pb2+) which leads to the formation of stronger bonds. These glass samples were converted to glass-ceramics by following a two-stage heat treatment schedule. It was observed that there was good correlation between the density and CTE results of the glass-ceramics. The XRD results revealed the formation of tetragonal lead titanate as a major crystalline phase in the glass-ceramics. The addition of MgO to the glass contributes to the formation of MgB4O7. The dielectric constant for all the glass-ceramic samples was observed to be higher than that of corresponding glass samples. Further, with addition of MgO the room temperature dielectric constant for glass-ceramic samples increases up to 10 mol% of MgO and then decreases for 15 mol%. It has been further observed that the variation of dielectric constant of glass-ceramic samples with MgO content is exactly opposite to the variation of crystallite size of PbTiO3 embedded in the glass ceramic-samples. © 2012 Elsevier Ltd and Techna Group S.r.l.


Shankar J.,Kavikulguru Institute of Technology and Science | Deshpande V.K.,Visvesvaraya National Institute of Technology
AIP Conference Proceedings | Year: 2014

Glass samples with composition (50 - X) PbO - X MO - 25 TiO2-25B2O3 (where X = 0, 5, 10 and 15 mol % and M = Ba, Sr) were prepared using conventional quenching technique. It has been observed that the addition of MO to PbO - TiO2-B2O3, enhances the Tg. The rise in Tg with MO content may be attributed to the greater field strength of M2+ cation which leads to the formation of stronger bonds. These glass samples were converted to glass ceramics by following two stage heat treatment schedule. The XRD results revealed the formation of tetragonal lead titanate as a major crystalline phase in the glass ceramics. The addition of MO to the glass, contributes to the formation of secondary crystalline phases BaB2O4, Sr2B2O5. The ferroelectric nature of all the glass ceramic samples is confirmed by P - E hysteresis measurements. © 2014 AIP Publishing LLC.


Shankar J.,Kavikulguru Institute of Technology and Science | Deshpande V.K.,Visvesvaraya National Institute of Technology
Physica B: Condensed Matter | Year: 2011

Glass samples with composition of (50-X)PbO(25X)TiO 225B 2O 3 (where X=0, 5, 10 and 12.5 mol%) were prepared using conventional quenching technique. The glass transition temperature, T g and crystallization temperature T c were determined from the DTA. These glass samples were converted to glass ceramics by following two stage heat treatment schedule. The glass ceramic samples were characterized by XRD, SEM and dielectric constant measurements. The XRD results revealed the formation of ferroelectric lead titanate (PT) as a major crystalline phase in the glass ceramics. The density increases and the CTE decreases for all glass ceramics with increase in X (mol%). This may be attributed to increase in PT phase. The SEM results which show rounded crystallites of lead titanate, also supports other results. Hysteresis loops observed at room temperature confirms the ferroelectric nature of glass ceramics. The optimized glass ceramic sample exhibits high dielectric constant which is of technical importance. © 2010 Elsevier B.V. All rights reserved.


Shankar J.,Kavikulguru Institute of Technology and Science | Deshpande V.K.,Visvesvaraya National Institute of Technology
Physica B: Condensed Matter | Year: 2012

The glasses with composition (50-X)PbO-XSrO-25TiO 2-25B 2O 3 (where X=0, 5, 10 and 15 mol%) were prepared using conventional quenching technique. The T g, T c, density and CTE of the glass samples were measured. The T g observed to increase with increasing concentration of SrO, while the T c first decreased and then increased. The glass samples were converted to glass ceramics by following two stage heat treatment schedule. The glass ceramic samples were characterized by XRD, SEM and dielectric measurements. The XRD results revealed the formation of ferroelectric lead titanate as a major crystalline phase in glass ceramics. Additional phases observed include Sr 2B 2O 5 and PbB 2O 4. The room temperature (RT) dielectric constant of glass and glass ceramics are in the range of 100-120 which is promising for capacitor application. © 2012 Elsevier B.V. All rights reserved.


Dahake S.W.,Visvesvaraya National Institute of Technology | Kuthe A.M.,Visvesvaraya National Institute of Technology | Mawale M.B.,Kavikulguru Institute of Technology and Science | Bagde A.D.,Visvesvaraya National Institute of Technology
Rapid Prototyping Journal | Year: 2016

Purpose - This paper aims to provide an overview of applications of medical rapid prototyping (MRP)-assisted customized surgical guides (CSGs) and shows the potential of this technology in complex surgeries. This review paper also reports two case studies from open literature where MRP-assisted CSGs have been successfully used in complex surgeries. Design/methodology/approach - Key publications from the past two decades have been reviewed. Findings - This study concludes that the use of MRP-assisted CSGs improves the accuracy of surgery. Additionally, MRP-assisted CSGs make the surgery much faster, accurate and cheaper than any other technique. The outcome based on literature review and two case studies strongly suggested that MRP-assisted CSGs might become part of a standard protocol in the medical sector to operate the various complex surgeries, in the near future. Practical implications - Advanced technologies like radiology, image processing, virtual surgical planning (VSP), computer-aided design (CAD) and MRP made it possible to fabricate the CSGs. MRP-assisted CSGs can easily transfer the VSP into the actual surgery. Originality/value - This paper is beneficial to study the development and applications of MRP-assisted CSGs in complex surgeries. © Emerald Group Publishing Limited.


Mawale M.B.,Kavikulguru Institute of Technology and Science | Kuthe A.M.,Visvesvaraya National Institute of Technology | Dahake S.W.,Visvesvaraya National Institute of Technology
Concurrent Engineering Research and Applications | Year: 2016

Additive manufacturing technology permits to develop a product with high level of geometrical complex shape and produce it as unique product by implying low cost and quick time production compared with other manufacturing processes. It has proved a faster method across various industrial disciplines to build functional parts from computer-aided design model. Freedom for design in product development is a new reality with additive manufacturing. In this article, a review of additive product development is done in various industries including food, sports, and biomedical. Furthermore, different additive manufacturing techniques which are used in innovative product development are explained with case studies and examples. Also, a conceptual framework has been represented to use additive manufacturing as collaborative tool with theory of inventive problem solving technique in the innovative product development. © SAGE Publications. © The Author(s) 2015.


Lahade S.V.,Kavikulguru Institute of Technology and Science | Hirekhan S.R.,Government College of Engineering, Aurangabad
2015 International Conference on Industrial Instrumentation and Control, ICIC 2015 | Year: 2015

For the economic development and progress of any country, roads play an important role by providing transportation ease for goods as well as for passengers. The number of vehicles on road is increasing day by day which are controlled by the traditional Traffic Light Controller in the countries like India and other developing countries. In traditional Traffic Light Controller, fixed time is allotted for traffic on each road to pass irrespective of the traffic intensity. This is an inefficient controlling method which consumes time, effort and fuel of users unnecessarily; also it doesn't have any provision of sensing and giving priority for the emergency vehicles to pass first. This problem is addressed by using Intelligent and Adaptive Traffic Light Controller (IA-TLC) implemented on FPGA using verilog as an example of FSM with 35 states. FPGA, microcontroller and ASIC designs have been used for traffic light controller. Reason for selecting FPGA is that it has numerous merits over microcontroller in TLC design. Some of these merits are high speed of operation, more number of input/output ports and better performance [1]. In IA-TLC density of traffic is sensed by using IR sensors throughout day and night, and accordingly time is allotted for users to pass. Other advantages of this system are: i) System senses emergency vehicles on the individual road moreover it gives priority to the traffic of that particular road where the emergency vehicles is sensed, ii) Finds out defaulter who crosses the red signal by capturing images using camera. IA-TLC is successfully implemented on Spartan 3E FPGA and same module is simulated for Spartan-3E, Spartan-6, Virtex-5 FPGA. © 2015 IEEE.

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