Investigation and Mathematical Modelling of Optimized Cutting Parameters for Surface Roughness of EN-8 Alloy Steel

The work done in this work deals with the efficacy of cutting parameters on surface of EN-8 alloy steel. For knowing the optimal effects of cutting parameters response surface methodology was practiced subjected to central composite design matrix. The motive was to introduce an interaction among input parameters, i.e., cutting speed, feed and depth of cut and output parameter, surface roughness. For this, second order response surface model was modeled. The foreseen values obtained were found to be fairly close to observed values, showed that the model could be practiced to forecast the surface roughness on EN-8 within the range of parameter studied. Contours and 3-D plots are generated to forecast the value of surface roughness. It was revealed that surface roughness decreases with increases in cutting speed and it increases with feed. However, there were found negligible or almost no implication of depth of cut on surface roughness whereas feed rate affected the surface roughness most. For lower surface roughness, the optimum values of each one were also evaluated

MHD Flow Past An Oscillating Infinite Vertical Plate With Variable Temperature Through Porous Media

Abstract: This paper analyzes MHD flow with heat and mass transfer on flow past an oscillating infinite vertical plate with variable temperature in a porous media. The dimensionless governing partial differential equations are solved by using Laplace transform method. Exact analytical solutions satisfy governing equations and the conditions are obtained. The velocity profiles are studied for different physical parameters. It is observed that the solutions are significantly affected by the phase angle (ωt), magnetic field (m), thermal Grash of number (Gr), mass Grash of number (Gc), permeability parameter (K), Schmidt number (Sc) and time t

Reactive Power Management and Pricing Policies in Deregulated Power System: A Global Perspective

The present paper address the need for reactive power management and its pricing in deregulated power systems nowadays. Different reactive power support equipments differ in their costs and operating characteristics. A selection of an appropriate reactive power pricing scheme is an important issue for recovering reactive service costs and providing signals to users to control their reactive power consumption. Many nations have successfully framed and implemented reactive power pricing policies. Those pricing policies along with some proposals for Indian states are also discussed here. Keywords: Reactive power management, reactive power pricing policies, reactive power marke

A Secure Anonymous Proxy Signcryption Scheme

We introduce a new cryptographic primitive identity-based anonymous proxy signcryption which provides anonymity to the proxy sender while also providing a mechanism to the original sender to expose the identity of the proxy sender in case of misuse. We introduce a formal definition of an identity-based anonymous proxy signcryption (IBAPS) scheme and give a security model for it. We also construct an IBAPS scheme and prove its security under the discrete logarithm assumption and computational Diffie-Hellman assumption. Moreover, we do an efficiency comparison with the existing identity-based signcryption schemes and anonymous signcryption schemes and show that our scheme is much more efficient than those schemes, we also compare the efficiency of our scheme with the available proxy signcryption schemes and show that our scheme provides anonymity to the proxy sender at cost less than those of existing proxy signcryption schemes.SCOPUS: ar.jinfo:eu-repo/semantics/publishe

MICROSCOPIC AND DEMOGRAPHIC PROFILE OF SEXUALLY TRANSMITTED DISEASES AT A TERTIARY CARE CENTRE OF CENTRAL INDIA

Objective: To find out the prevalence of Sexually transmitted diseases (STDS) among the patients attending the tertiary care center through microscopic screening. Methods: This Cross Sectional study was conducted from April 2018 to December 2019 wherein 500 samples were collected from patients attending the STD clinic of Skin & VD-OPD, and Integrated counseling and testing center (ICTC), having cervical or urethral discharge along with signs and symptoms of sexually transmitted infections (STI) were screened microscopically for the same. Results: This study showed only 2 cases suggestive of N.gonorrhoeae on microscopy, wherein the Gram-stained smear showed the presence of a particular arrangement of Gram-negative coffee bean shape cocci, both intracellular and extracellular, and plenty of pus cells. In Direct Microscopy findings, 49.2% of samples showed normal flora, 20.4% Gram-positive cocci, 15.8% Gram-negative cocci, 4% Clue cells, 13.8% with mixed flora, 3% Budding yeast-like cells and 0.4% showed Gram-negative cocci. Conclusion: Such studies involving the laboratory and demographic data should be conducted regularly which can help in estimating the disease burden, strengthening the diagnostic capacity, and formulating the requisite strategy for tackling this problem through a syndromic approach

Topical treatment in vitiligo and the potential uses of new drug delivery systems

Vitiligo is a psychologically devastating condition. Topical therapy is employed as first-line treatment in localized vitiligo. Currently, several topical agents are available in many forms viz. methoxsalen (solution and cream), trioxsalen (solution), corticosteroids (gel, cream, ointment and solution) and calcineurin inhibitors (ointment and cream). Although topical therapy has an important position in vitiligo treatment, side-effects or poor efficacy affect their utility and patient compliance. Novel drug delivery strategies can play a pivotal role in improving the topical delivery of various drugs by enhancing their epidermal localization with a concomitant reduction in their side-effects and improving their effectiveness. The current review emphasizes the potential of various phospholipid based carriers viz. liposomes, transferosomes, ethosomes, lipid emulsions, solid lipid nanoparticles and organogels in optimizing and enhancing the topical delivery of anti-vitiligo agents, whilst reducing the side effects of drugs commonly used in its topical treatment