Informatics Publishing Limited

Pradeep Kumar Dubey ¹, R. Bajpai ¹, J. M. Keller ¹

Affiliations
1 Department Physics and Electronics, R.D.V., Jabalpur, M.P., IN

Abstract

Effect of Load, Load dependent nature of Micro hardness measurement and Doping Effect on untreated samples and Micro hardness studies on the effect of charge due to electrical stress on the samples of pure and Rhodamine doped PMMA with different weights proportions have been carried out using Vicker's micro hardness testing for hardened networks plasticization and crystallization. Some selected samples are used to study the electrical stress, with the help of thermostat controller at different polarizing temperatures and fields in thermally stimulated depolarization current due to dipole orientation or trapping of space charges, which gives the information about uniform polarization.

Keywords

Polymeric Material, Micro Hardness, Doping Effect, Electrical Stress.

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Hradayesh Kumar Patel ¹, Rajesh Shrivastava ¹, Pradeep Kumar Dubey ¹

Affiliations
1 SRIT, Jabalpur, IN

Abstract

We propose a novel, robust MANET protocols evaluation framework which enables researchers to track performance metrics and evaluate theoretical predictions. This framework speeds up the research and development spirals, provides faster feedback to algorithm developers and closes the loop between theory and qualitative analysis of the protocols' performance. Our test and evaluation effort is divided into two parts. Rapid prototyping and evaluation of proposed algorithms is performed in the MATLAB environment. These tools enable us to numerically analyze performance, capabilities, convergence, and robustness of new algorithms. The second higher fidelity approach is the test and evaluation framework developed in OPNET simulation environment. Its unique features are the novel application and evaluation process including sophisticated statistics collection and an event logging architecture.

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Pradeep Kumar Dubey ¹, R. Bajpai ¹, J. M. Keller ¹

Affiliations
1 Department of PG Studies & Research in Physics & Electronics, R.D.V.V, Jabalpur – 482 001, M.P, IN

Abstract

Polymeric materials of pure and laser dye Rh (6G) doped PMMA with various compositions were prepared by solution cast method. SEM micrographs, designate comprehensive chain formation with homogeneous texture of laser dye Rh (6G) doped PMMA. The AFM imaging helps us to investigate the nanophase domain morphology of the pure and doped specimens. The phase domain distinction emphasizes the difference in the mechanical interface in doped polymers and surface region of the samples. The effect of electrical stress on microhardness studies have been carried out on pure and doped specimens at various loads using Vicker’s microhardness testing. The outcome of SEM and AFM investigations have been correlated with electrically stressed microhardness values.

Keywords

Polymeric Materials, Electrical Stress, Microhardness, SEM and AFM.

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Ajeet Singh ¹, Pradeep Kumar Dubey ¹, P. C. Abhilash ¹

Affiliations
1 Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi - 221 005, IN

Abstract

Agrobiodiversity is crucial for feeding the rapidly growing human population and also for attaining the UN Sustainable Development Goals such as no poverty, zero hunger and good health and well being for one and all, as the 2030 agenda for sustainable development. Agrobiodiversity is also imperative for dietary diversification, and for breeding the next generation of climate-smart crops for futuristic conditions. Here we discuss the importance of wild crop plants for the food and nutritional security in the developing world.

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