On The Measurement of Temperature in Material Removal Processes

https://www.nics.uma.es/sites/default/files/papers/alcaraz%3A2015%3ACRI.pdf

Critical infrastructure protection

This study covers new trends and techniques in the field of predictive maintenance, which has been superseding traditional management policies, at least in part. It also presents suggestions for ho...

Predictive maintenance, its implementation and latest trends:

Machining of steel inherently generates high cutting temperature, which not only reduces tool life but also impairs the product quality. Conventional cutting fluids are ineffective in controlling the high cutting temperature and rapid tool wear. Further, they also deteriorate the working environment and lead to general environmental pollution. Cryogenic cooling is an environment friendly clean technology for desirable control of cutting temperature. The present work deals with experimental investigation in the role of cryogenic cooling by liquid nitrogen jet on cutting temperature, tool wear, surface finish and dimensional deviation in turning of AISI-4037 steel at industrial speed-feed combination by coated carbide insert. The results have been compared with dry machining and machining with soluble oil as coolant. The results of the present work indicate substantial benefit of cryogenic cooling on tool life, surface finish and dimensional deviation. This may be attributed mainly to the reduction in cutting zone temperature and favorable change in the chip–tool interaction. Further it was evident that machining with soluble oil cooling failed to provide any significant improvement in tool life, rather surface finish deteriorated.

Cutting temperature, tool wear, surface roughness and dimensional deviation in turning AISI-4037 steel under cryogenic condition

Preparation of graphene oxide modified polyamide thin film composite membranes with improved hydrophilicity for natural organic matter removal

This study deals with the investigation of the mechanical and water absorption properties of jute fibre reinforced epoxy composites prepared by using hand layup method. The effects of fibre length ...

An experimental study on the effect of nano-clay addition on mechanical and water absorption behaviour of jute fibre reinforced epoxy composites:

Untreated and treated jute fiber and nano-clay in various ratios were used to fabricate jute/nano-clay/epoxy hybrid composites through compression molding method. The dynamic mechanical and free vibration behaviours were evaluated by varying the concentration of NaOH (2.5%, 5% and 7.5%) and wt.% of nano-clay (1, 3, 5 and 7 wt.%). Experimental outcomes disclosed that the storage and loss modulus, damping factor and natural frequency are influenced by concentration of NaOH solution and nano-clay content. A positive shift (towards higher temperature) in glass transition temperature and enhanced natural frequency of the composites after NaOH treatment and nano-clay addition confirmed that superior interfacial bonding exists between the jute fibers and epoxy matrix. Finally, the composites incorporated with 5% treated fiber and 5 wt.% of nano-clay is suggested for low strength structural applications in construction and automobile industries.

Dynamic Mechanical Properties and Free Vibration Characteristics of Surface Modified Jute Fiber/Nano-Clay Reinforced Epoxy Composites

Graphene oxide (GO) is a carbon-based material, which is one atom thick sheet of graphite. The nanofillers have exceptional stiffness and strength owing to the presence of two-dimensional graphene backbone. Especially owing to this reason, nanocomposites have been developed using GO for several applications. This review article explores the synthesis of GO from flake graphite. Main emphasis has been afforded on the preparation and characterization of GO nanocomposites, utilizing various industrial polymers for wide application in aerospace, biomedical, military, supercapacitors, electrical, sensor, and so on. Morphological characterization exploring the interaction and extent of dispersion of GO nanosheets in the polymer matrices is extensively accounted. From the reports, it is clear that exfoliation and strong interaction of GO tremendously improved the physical, mechanical, thermal, electrochemical, biocompatibility, and tribological properties of the added polymer. POLYM. COMPOS., 35:2297–2310, 2014. © 2014 Society of Plastics Engineers

Research updates on graphene oxide-based polymeric nanocomposites

There is a great deal of benefits for process plants in adopting the Internet to control systems. Over the years, there has been constant increase in the development of industrial automation through remote monitoring and diagnosis virtually. By surveying down the existing remote monitoring system used for process plant equipment, this system tends to focus on the recent trends and developments in the control of equipments and devices in the industries by remote monitoring through Internet. The Internet based automation is made possible by the use of Programmable Logic Controller (PLC), Supervisory Control and Data Acquisition (SCADA), Virtual Private Network (VPN) and other network elements. The objectives of remote monitoring and diagnosis are prevention of unplanned downtime, making optimal control operation and maximizing the operational life of plant assets. An online integrated web based remote supervisory control and information system takes real-time data on process control unit's performance and helps the remote expert for further analysis and thereby supports the plant engineer. The design, Internet security and user interface challenges are focused in this paper.

Design and Implementation of Web Based Remote Supervisory Control and Information System

Medical education is changing at a fast pace. Students attend medical school with a high degree of technological literacy and a desire for a diverse educational experience. As a result, a growing number of medical schools are incorporating technology‐enhanced active learning and multimedia education tools into their curriculum. Gamified training platforms include educational games, mobile medical apps, and virtual patient scenarios. We provide a systematic review of what is meant by gamification in this era. Specific educational games, mobile apps, and virtual simulations that may be used for preclinical and clinical training have been discovered and classified. The available data were presented in terms of the recognized platforms for medical education's possible benefits. Virtual patient simulations have been shown to enhance learning results in general. Gamification could improve learning, engagement, and cooperation by allowing for real‐world application. They may also help with promoting risk‐free healthcare decision‐making, remote learning, learning analytics, and quick feedback. We account for Preclinical training which included 5 electronic games and 4 mobile apps, while clinical training included 5 electronic games, 10 mobile applications, and 12 virtual patient simulation tools. There were additionally nine more gamified virtual environment training products that were not commercially accessible. Many of these studies have shown that utilizing gamified media in medical education may confer advantages. This collection of hyperlinked resources may be utilized by medical students, practitioners, and instructors at all levels.

K. Krishnamurthy

Papers

An experimental study on the effect of nano-clay addition on mechanical and water absorption behaviour of jute fibre reinforced epoxy composites:

Dynamic Mechanical Properties and Free Vibration Characteristics of Surface Modified Jute Fiber/Nano-Clay Reinforced Epoxy Composites

Research updates on graphene oxide-based polymeric nanocomposites

Design and Implementation of Web Based Remote Supervisory Control and Information System

Benefits of gamification in medical education