Cover to cover: the changing identity of the magazine journalist as the medium goes from print to digital

In the field of media studies, magazines and magazine journalism have not received the volume of attention that they deserve. However, this is slowly changing. The significance of studying magazine journalists and their changing role and identity has been underscored by a number of academics from the UK and America. This research study focuses on magazine journalists, particularly from India, in the light of technological advances particularly the Internet, social media, and handheld smart devices. The study aims to understand how these journalists cope with the demands of digitisation and how they feel their own identity has changed because of this. In-depth, semi-structured interviews were conducted with five magazine journalists in India. A thematic analysis of the data thus gathered revealed that magazine journalists in India appear to also be struggling with the pressures of digitisation, much like magazine journalists from Western countries. Their sense of identity, which was traditionally forged by the journalism school they went to and then the publication they worked for, is now becoming more independent. They are engaging with readers – more accurately described as magazine users – on a more personal level via social media channels. From being gatekeepers of magazine content – such as access to celebrity and exclusive information – they have become co-creators and co-consumers of the culture that they together represent. The results of this study contribute to widening the understanding of magazine journalism cultures in India around the world. Suggestions for further research and applications in pedagogy and practice are also included

Effect of gas nitriding on the thermal fatigue behavior of martensitic chromium hot-work tool steel

The influence of heat treatment and gas nitriding on the thermal fatigue behavior of martensitic chromium hot-work tool steel was investigated. Thermal fatigue tests were carried out using a special induction heating apparatus, which consisted of induction heating and water spray cooling unit. The process of thermal cycling was simulated using a coupled heat-transfer solid-mechanics finite element model. It was seen that the thermal fatigue resistance was higher in the gas nitrided samples after austenizing at 1020 degrees C than for the gas nitrided samples after austenizing at 1100 degrees C. The thermal fatigue endurance limit was found to be maximum for the samples having a compound layer comprising of the higher phase fraction of gamma' (Fe-4 N1-x). It was also found that, lower the ratio of compound layer thickness to the total diffusion depth, the higher is the fatigue life. These results were influenced by two major effects of nitrided (diffusion) layer. First is the high compressive residual stresses imparted on the surface which tend to mitigate the effect of thermal tensile stress and secondly very high surface hardness, due to the diffusion of nitrogen, which increase the threshold for crack initiation at the surface. (C) 2015 Elsevier B.V. All rights reserved

Effect of Friction Models and Parameters on the Lagrangian Flow Fields in High-Temperature Compression Testing

Friction plays an important role in high-temperature deformation process. Friction affects local displacement field in the tool-workpiece interface region, thus affecting the overall material flow. Under high-temperature compression, macro-indicators like bulge radius and load displacement curves are not sensitive enough to distinguish subtle differences between various friction models. Hence, a new approach to match the experimental Lagrangian flow field with flow field obtained from FE simulation is proposed. For this uniaxial barreling, compression tests at constant temperature were conducted on Gleeble thermo-mechanical simulator. The compression tests were conducted at different strain, strain rate and friction conditions. Finite element simulations employing various friction models and parameters were performed for matching the experimental conditions. Experimental Lagrangian flow fields were obtained from the grain flow lines observed on high-resolution larger area micrographs of the specimen. It was observed that all the investigated friction models provided equally good fit with the macro-experimental indicators (bulge radius and load displacement curves). However, Coulomb friction model was the only friction model that provided the closest fit with the experimentally obtained Lagrangian flow fields. Coulomb friction model provided the best agreement between experimental and numerical simulation for both lubricated and non-lubricated conditions using friction coefficients mu = 0.2993 and mu = 0.3895, respectively