Image Encryption using Four-Dimensional Hyper Chaotic Lorenz System
The paper proposed the application of a new four-dimensional hyper chaotic map based on the Lorenz chaotic system to realize chaotic encryption for improved security. Hyper chaotic systems are more complex and difficult to predict. An image encryption algorithm is designed by utilizing the basic operations like permutation, confusion and diffusion. The combination of the user defined 256 bits secret key and the plain image are used as initial conditions for the 4D hyper-chaotic system to generate the key matrix. Several test images are used for inspecting the validity of the proposed work. The security analyses and computer simulations on the basis of key space analysis, statistical analysis, histogram analysis, information entropy analysis, correlation analysis and differential analysis is done. The NPCR and UACI values of encrypted images are also calculated. The result shows that a single bit change in the pixel value of the input plain images will cause a significant changed in the ciphered images. Total key space for the proposed method is 2256, which is good enough to protect the encrypted image against brute-force attack.
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Reasons for Adolescent’s Social Network addiction and its impact on Academics –An Analysis using Induced Linked Fuzzy Relational Mapping Using Hexagonal Fuzzy number
Educational Institution is a home away from home and it is a place of knowledge acquisition. It aims in developing the adolescents to fulfill the requirements of the needs of the society. It strives hard in implementing new tactics to enhance the academics, but it still fails in achieving it due to many reasons one among is, addiction to social networks. As we are living in techno world, we are bound to be a member of social networks (SN) and the adolescents are not an exception to it. In this present scenario we are highly dominated by our inventions and the best example is social networks. Though it is featured with many beneficial attributes its impact on adolescent’s academics is worse which indeed troubles the parents and bring them to a conclusion that social networks has connection with adolescent’s academic performance which is considered significant by the educational institution. To find the attribute which cause a strong impact on adolescent’s academic performance, induced linked fuzzy relational mapping using hexagonal fuzzy number approach is used which is a novel method.
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Optimization of an inventory model considering the cost of green research and green analysis of the product in multi dimensional aspect using Decagonal Fuzzy Number
In recent times the production sectors (PS) have started to concentrate not only on product production but also on an additional perspective that is research and product analysis in multidimensional aspects. The PS before commencing the production process have now started to find the ways and means of enhancing the product’s features and also they have began to analyze the propagation extent of the product that is the level of the reach of the product. The main notion of carrying out such activities is to produce novelty products. To achieve this PS seek the assistance of many consultancies or they establish research centre in their production environment. Conventional Inventory models do not satisfy the present needs of PS therefore inventive inventory model considering associated costs of research and product analysis have to be formulated. To fulfill this, inventory model is formulated with Decagonal Fuzzy Numbers to overcome the existing uncertainty. In this paper a new approach of Pascal’s Triangle Graded mean Approach is used for Decagonal Fuzzy number. Also Decagonal fuzzy number gives a better optimal value than all other types of fuzzy number.
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Anti-inflammatory and Anti-peroxidative effect of Hamelia patens leaf extract on carrageenan induced rat paw edema
The present study investigates the anti-inflammatory activity of Hamelia patens leaf extracts using carrageenan induced paw edema in albino rats. This anti-inflammatory medicinal value of the Hamelia patens leaf has been mentioned in ancient literature. Dried leaves of Hamelia patens were crushed and the extract was prepared with ethanol using shaker. Indomethacin and Hamelia patens are compared in terms of their anti-inflammatory properties. Test groups were given standard Indomethacin (10mg/kg) and Hamelia patens leaf extract in 200mg/kg and 400mg/kg; after 1% Carrageenan (0.1 ml) injection. Hamelia patens leaf extract showed higher reduction in paw edema and potent anti-inflammatory activity in comparison with indomethacin. It also showed decrease in lipid peroxidation due to its anti-oxidative nature, leaving a large prospect for future anticancer research.
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Thermal Characteristics of V-Trough Solar Simulator (VTSS) using different Profiles of Heat Pipes
V-Trough solar simulator (VTSS) was designed and constructed at Measurements lab of Annamalai University and its performance was analyzed on indoor test facility. Integrating the heat pipe with V-Trough absorber plate can improve the system performance. VTSS system uses three different heat pipes such as circular, semicircular and Elliptical of same length 900 mm and diameter of 18 mm, 22 mm, 24 mm respectively. The experiment had been conducted by changing the heat pipes of the collector (VTSS). The output responses such as heat output, thermal resistance and overall efficiency has been analyzed with respect to each heat pipe experimentally by using commercial Design of Expert version DX 9 software by using Box- Behnken design of Response Surface Method (RSM). Contour diagram shows the factors effecting and thermal behaviour of the heat output, thermal resistance and overall efficiency has been shown. From the mathematical results and RSM optimization it is concluded that experimental setup integrated with circular heat pipe gives higher heat output and overall efficiency with less thermal resistance.
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Single Feed Circular Polarized Circular Patch Antenna with C – Shaped Slots for Mobile Applications
A single feed circularly polarized c-shaped and circular patch antenna with improved axial ratio bandwidth is presented. In this article, both c-shaped slots and circular patch antenna were designed and by using the concept of switches like PIN diodes the circular polarization have been obtained. In this article the circular polarization was achieved by creating some asymmetry in the structure of an antenna. The performance characteristics of an antenna were explained in terms of its return loss characteristics and elevation radiation pattern of gain by using IE3D simulator.
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A Rare Case Report on Tubercular Mastitis Presenting as Breast Abscess
A developing nation like ours has been suffering with a tremendous cases of tuberculosis nationwide, in all forms expected. We here highlight a case of Tuberculosis of breast tissue in an adolescent girl which is rare as a presentation and was mis-lead and treated as a breast abscess of other origin. Confirmatory findings with use of tools like ultrasonography and biopsy made us to final the diagnosis and put the patient on anti-tubercular drugs.
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FT-IR And FT-Raman Spectral Investigation of 3-Nitropyrrole
Normal coordinate calculations of 3-nitropyrrole have been carried out using Wilson’s FG matrix Valence Force Field (GVFF) for both in-plane and out-of-plane vibrations. The potential energy constants obtained in this study are refined using numerical methods. Keywords: FT-IR, FT-Raman, 3-nitropyrrole, Normal coordinate analysis, potential energy distribution.
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Cultivating Strategies of Humanistic Literacy for College Physics Undergraduates
Humanistic education can build students’ humanistic literacy which including freedom of thought, moral autonomy and personal authenticity. In higher physics education, both science literacy and humanistic literacy should be developed. The higher physics education can enhance the blend of scientific education and humanistic education, and promote the harmonious development between scientific literacy and humanistic literacy.
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Dufour effect on free convection MHD flow past an impulsively started vertical oscillating plate through porous media with variable temperature and constant mass diffusion
Dufour effect on free convection MHD flow past an impulsively started vertical oscillating plate through porous media with variable temperature and constant mass diffusion is studied here. The Laplace transform technique has been used to find the solutions for the velocity profile, temperature profile and concentration profile. The results obtained are discussed with the help of graphs drawn for different parameters like thermal Grashof number, mass Grashof number, Prandtl number, permeability parameter, the Hartmann number, Schmidt number, Dufour number, time, inclination of magnetic field and phase angle.
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