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Common Fixed Point Theorems in Uniform Spaces

In the process of generalization of metric spaces to Topological spaces, a few aspects of metric spaces are lost. Therefore, the requirement of generalization of metric spaces leads to the theory of uniform spaces. Uniform spaces stand somewhere in between metric spaces and general topological spaces. Khan[6] extended fixed point theorems due to Hardy and Rogers[2], Jungck[4] and Acharya[1] in uniform space by obtaining some results on common fixed points for a pair of commuting mappings defined on a sequentially complete Hausdorff uniform space. Rhoades et. al.[7] generalized the result of Khan[6] by establishing a general fixed point theorem for four compatible maps in uniform space . In this paper, a common fixed point theorem in uniform spaces is proved which generalizes the result of Khan[6] and Rhoades et al.[7] by employing the less restrictive condition of weak compatibility for one pair and the condition of compatibility for second pair, the result is proved for six selfmappings.

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Integral Transform Methods for Inverse Problem of Heat Conduction with Known Boundary of SemiInfinite Hollow Cylinder and Its Stresses

Three dimensional inverse transient thermoelastic problem of a semi-infinite hollow cylinder is considered within the context of the theory of generalized thermoelasticity. The lower surface, upper surface and inner surface of the semi-infinite hollow cylinder occupying the space D={(x,y,z)E R3: a≤(x2+y2)1/2 ≤b, 0≤z≤∞} are known boundary conditions. Finite Marchi-Zgrablich transform and Fourier sine transform techniques are used to determine the unknown temperature gradient, temperature distribution, displacement and thermal stresses on outer curved surface of a cylinder. The distribution of the considered physical variables are obtained and represented graphically.

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Optimum Solution of Quadratic Programming Problem: By Wolfe’s Modified Simplex Method

In this paper, an alternative approach to the Wolfe’s method for Quadratic Programming is suggested. Here we proposed a new approach based on the iterative procedure for the solution of a Quadratic Programming Problem by Wolfe’s modified simplex method. The method sometimes involves less or at the most an equal number of iteration as compared to computational procedure for solving NLPP. We observed that the rule of selecting pivot vector at initial stage and thereby for some NLPP it takes more number of iteration to achieve optimality. Here at the initial step we choose the pivot vector on the basis of new rules described below. This powerful technique is better understood by resolving a cycling problem.

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The Diversity and Richness of Vegetation of Gaddikhana Forest Beat in Darjeeling Himalaya, West Bengal, India

40 plant species belonging to 36 genera of 27 families were recorded from the study area - Gaddikhana Forest, Darjeeling during present investigation. Among them 37 were dicotyledons and 3 monocotyledons. Viola bentonicifolia was found to be abundant and dominant in distribution. Plant community was found to be homogenous in nature. Several clusters were formed between plant species on the basis of their relative abundance and resource value. Principal component analysis of the different pedons revealed pH, Phosphate, conductivity were statistically significant factors affecting distribution of plant species in Gaddikhana forest range. The population pressures including the anthropogenic activities in forest regions increased significantly and in future it seems to be a major threat of biodiversity of Darjeeling..

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Traceability Technologies across the Food Value Chain

With the globalization of food industries, vitality of traceability has increased substantially. The need for a reliable identification and tracking system is therefore essential to ensure the safety and quality of food reaching the consumer. Current market for tracing technologies is restrained by various factors like high cost, skepticism about efficiency and liability of technology. This paper gives an overview of relevant food tracing technologies available in the market and a descriptive analysis of their efficiency, liability, features and characteristics.

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Males, Media and Metrosexuality: An Exploratory Study of Persuasion

The level of metrosexuality among males has increased significantly over the last number of years as males are now showing more of an interest in fashion, appearance and beauty enhancement products. They are increasingly becoming passionate consumers of once taboo goods and services such as grooming products, cosmetics, salon services and fashion goods. This consumer, labeled as the metrosexual, is alleged to indicate a departure from conventional notions of masculinity. Advertisers are taking notice by increasingly promoting goods and services to target this lucrative consumer segment. This paper aims to explore and analyze the impact of media (advertisements basically) on the identity of metrosexual men whose certain characteristics are different from conservative males. It is an exploration of the relationship between ads of transforming conservative, old-fashioned males into appealing and more confident ones and the resulting anxiety levels. All the statistical analysis is carried out with the help of SPSS and to find out significant difference between the opinions of different demographic groups, Frequency distribution with tables and charts, Cross-tables and One-way ANOVA (Analysis of Variance) is used. This contrastive study will provide understanding and insight not only on the influence of advertising but also on the new gender of modern men who are different from the conventional ones. The present study conducted during the year 2015, will also provide marketers and advertisers with the tools to effectively target this important segment i.e. men.

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Role of Nanotechnology and Functionalization in the Remediation of Toxic Metals from Water System: Environmental Sustainability and Development

The development of technologies for water purification is decisive to meet the global challenges of inadequate access of water supply. Among all remediation methods, sorption is globally recognized as the most promising method because of versatility, reversibility and economic feasibility. The present communication describes the fabrication, characterization and application of paraben modified nanocellulose (PNC) enriched with COO- functional groups for the removal of chromium and lead toxic metals. The fabricated nanobiomaterial has thoroughly characterized with recent microscopic and spectroscopic techniques. Paraben modified nanocellulose (PNC) is found to possess excellent removal efficiency for chromium (96.27%) and lead (80.85%) and it can be reused five times. The findings open up new avenues for the commercial preparation of a cost effective environmental friendly biosorbent and development of a pre-treatment green method prior to high-tech chemical treatments for decontamination of toxic metals particularly in rural and suburban areas of the developing countries.

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An Analysis of Unsteady MHD Couette Flow and Heat Transfer in a Rotating Horizontal Channel with Injection/Suction

The Present paper aims significantly analyses the effect of transient hydro magnetic Coutte flow and heat transfer of an incompressible electrically conducting viscous fluid through a porous medium between two infinitely long horizontal parallel plates when upper plate is allowed to move in the presence of uniform transverse magnetic fluid normal to the plates whereas lower plate kept at rest taking injections/suction into account. The channel rotates about an axis perpendicular to the plates of the channel. The non-dimensional governing the transient momentum equation and the energy equation are solved analytically by applying the perturbation technique. The effect of various physical pertinent parameters is discussed on the flow field, the temperature profile numerically and presented by figures. The thermal slip at the lower plate is taken in account. The effect of Skin friction and rate of heat transfer in terms of Nusselt number is shown by tables. Our results reveal that the combined effects of magnetic field (M), rotation parameter (Ω), Prandtl number (Pr), permeability (Kp), injection/suction (Re), heat generation/absorption (S) and thermal slip have significant impact on the hydromagnetic flow and heat transfer. The Problem is very much significant in view of its several engineering, geophysical and industrial applications..

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An Introduction to phylum Tardigrada - Review

Tardigrades popularly known as water bears are micrometazoans with four pairs of lobopod legs. They are the organisms which can live in extreme conditions and are known to survive in vacuum and space without protection. Tardigardes survive in lichens and mosses, usually associated with water film on mosses, liverworts, and lichens. More species are found in milder environments such as meadows, ponds and lakes. They are the first known species to survive in outer space. Tardigrades are closely related to Arthropoda and nematodes based on their morphological and molecular analysis. The cryptobiosis of Tardigrades have helped scientists to develop dry vaccines. They have been applied as research subjects in transplantology. Future research would help in more applications of tardigrades in the field of science.

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Application of Remote Operated Vehicle as a Post Construction Instrumentation for an Existing Dam- A Case Study

Civil engineering structures of hydroelectric project such as dam, water intake, trashrack of penstocks, etc. are usually submerged; and there are few effective methods for their inspection. Monitoring of the health of dams is paramount as the failure of such structures will have disastrous consequences by way of loss of life, property and on account of heavy expenditure towards its repair and rehabilitation. Regular safety appraisal of dam and its appurtenant structures is considered essentially by dam safety committees. Monitoring of dam can be carried out in many ways such as Visual inspections, Instrumentation, Non-Destructive Testing (NDT) and Underwater Inspection using divers and Remote Operated Vehicle (ROV). This paper presents case study of underwater scanning of a dam using the Remote Operated Vehicle.

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Peristaltic Pumping of a Newtonian Fluid in an Inclined Asymmetric Channel under the Effect of a Magnetic Field with Variable Viscosity

We investigated the MHD peristaltic flow of a Newtonian fluid with variable viscosity in an asymmetric channel under the assumptions of long wavelength and low Reynolds number assumptions. The expressions for the velocity, pressure gradient, pressure rise and friction force at the upper and lower wall per one wavelength are obtained by a regular perturbation technique. The effects of viscosity parameter (alpha) , Hartmann number M , wave amplitudes a,b and phase shift (theta) on the above physical quantities are discussed in detail.

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Flow and Heat Transfer of a Non-Newtonian Power-Law Fluid over a Non-Linearly Stretching Vertical Surface with Heat Flux and Thermal Radiation

The present paper is focused on the study for the effects of constant heat generation and thermal buoyancy on the steady two-dimensional flow and heat transfer of a non-Newtonian power-law fluid over a non-linearly stretching vertical surface. Highly nonlinear momentum and thermal boundary layer equations which governing the flow and heat transfer are reduced to a set of nonlinear ordinary differential equations by appropriate transformation.The resulting ODEs are successfully solved numerically with the help of fourth order Runge–Kutta method coupled with the shooting technique. The effects of various parameters like the buoyancy(mixed convection) parameter, the radiation parameter, power-law index parameter and the local Prandtl number on the flow and temperature profiles as well as on the local skin-friction coefficient and the local Nusselt number are presented and discussed. Favorable comparisons of numerical results with previously published work on various special cases of the problem are obtained.

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Level Crossings of a Random Trigonometric Polynomial with Dependent Coefficients

Let Pn(theta)=jpgi(w)cos j(theta) be a random trigonometric polynomial such that the coefficients {g1(w), g2(w)…gn(w)} is a sequence of normally distributed independent random variables with mean zero and variance one and the correlation coefficients fij between ith and jth coefficients are constant. 0n(0,2 Pi ) of the equation Tn (theta) =K (where K is any constant).

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Nonrelativistic Scattering of an Electric Charge in the Radial Field of a Fixed Dyon

An inventory model with different deterioration rates under exponential demand with inflation and permissible delay in payments is developed. Holding cost is taken as linear function of time. Shortages are not allowed. Numerical examples are provided to illustrate the model and sensitivity analysis is also carried out for parameters.

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Inventory Model with Different Deteriorating rates under Exponential Demand, Inflation and Permissible Delay in Payments

An inventory model with different deterioration rates under exponential demand with inflation and permissible delay in payments is developed. Holding cost is taken as linear function of time. Shortages are not allowed. Numerical examples are provided to illustrate the model and sensitivity analysis is also carried out for parameters.

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A Study on the Water Quality Parameters of Kukkarahalli Lake Water Mysore, Karnataka, India

The physico-chemical parameters like pH, alkalinity, TDS, hardness, Mg2+, Ca2+ etc of Kukkarahalli lake water were studied and the results obtained by the analysis were compared with WHO and ISI standards. The results of the present study are not very encouraging and reflect the deteriorating status of the lake. It emphasises for a quick action to be taken for its restoration. This requires a careful monitoring of lake water by conducting its analysis on a routine basis. This study may be very helpful for the authorities to protect the lake water resources and keep their impurity level under check so that it can be used during the crisis. The study will also help in bringing awareness among the people living near the lakes to keep their environment clean and green..

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Evaluation of rabi sorghum genotypes for the resistance against storage pest, Sitophilus oryzae(L.)..

Among the 20 rabi sorghum genotypes evaluated for the resistance against rice weevil, the genotypes like M 35-1, RSJ 1, KMJ 1, AKJ 1 and CSV 216R possessed higher resistance to S. oryzae with respect to different characters like per cent grain damage [M 35-1 (21.20%) KMJ 1 (27.20%), AKJ 1, RSJ 1 (28.00%) and CSV 216R (36.00%)], grain weight loss [ M 35-1 (4.43g), AKJ 1 (5.60g), SMJ 1 (5.60g), RSJ 1 (5.60g) and CSV 216R (7.20g)] and population buildup of rice weevils [AKJ 1 (15.00), KMJ 1 (25.00), M 35-1 (25.50), RSJ 1 (25.50) and CSV 216R (30.50)]. Whereas, BR 33, BJV 44, BRJ 204 and PhuleRevati were susceptible to the pest.

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Growth and Structural Studies of Cu Doped L-Threonine Single Crystals.

The Pure and Cu doped L-Threonine single crystals were grown from aqueous solution by slow evaporation technique. The density of the grown crystals was determined by floatation method and refractive index was determined by using Abbe referctometer. The grown crystals were characterized by FTIR, EDAX, SXRD and PXRD. The crystals grown in the present study, which were found to be orthorhombic, are transparent, hard and stable.

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Econometrics of Scampi (Macrobrachium Rosenbergii) Polyculture in Selected Ponds at Sandeshkhali - I Development Block in North 24 Parganas District of Coastal West Bengal over the Year 2014.

For a social and economic standpoint prawn farming will remain an important part of the rural economy. From an environmental standpoint impacts of intensive prawn culture will only become exacerbated if the discharge of untreated effluent continues. This could have severe consequences for the industry in the future. Alternative systems, such as nutrient recycling systems, or alternative water treatment strategies are necessary to mitigate negative impacts in the future. The potential for higher farm income through remediation of currently idle ponds will provide a significant incentive for farmers to make them back on scampi farming. Factors encouraging prawn farming expansion are compatibility with agriculture, small farmers can practice in their own land, opportunities for women’s involvement, no interference with mangrove or environment. Revive the scampi industry can made it a major contributor in earning foreign exchange for our country and at the same time play a crucial role to the employment generation and socio-economic upliftment of a major portion of coastal rural fisher folk..

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Study of Variations in Mean Fundamental Frequency and Mean Energy of the Voice Recording of a Speaker with Respect to the Distance

Speaker recognition has become an important tool in crime investigation, since the use of the human voice as an instrument in commission of crime is ever-increasing due to increase in communication. We can identify a person on the basis of acoustical analysis of his/her voice but as we all know there are some limitations against expert in forensic speaker recognition and for this reason the voice evidence is usually accepted as the secondary evidence supporting other scientific facts in the court of law, but in offenses such as kidnapping, extortion, Blackmail threats, obscene calls, harassment calls, ransom calls etc. where the criminal catch aid of telephone or mobile phone for accomplishing their illicit tasks, voice automatically becomes the primary and most valuable evidence for linking the suspect and the crime. One limitation against expert in forensic speaker recognition is the variation in distance between recorder and the mouth of speaker during questioned voice and control voice recording.In this paper, we present a study of variations in mean fundamental frequency and mean energy of the voice recording of a speaker with respect to the distance. We analyzed the range of variation in energy and fundamental frequency for above situation which may further useful to forensic expert to overcome the limitations and achieve precise and accurate results. The results show a very strong influence of the distance variation between speaker and recording device upon mean energy.

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Deteriorating Items Inventory Model with Different Deterioration Rates and Shortages

An inventory model with linear trend in demand and time varying holding cost is developed. Different deterioration rates are considered in a cycle. Shortages are allowed and completely backlogged. Numerical example is provided to illustrate the model and sensitivity analysis is also carried out for parameters.

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Synthesis, Characterization and D.C. Conductivity Studies of Polypyrrole/Tantalum Pentoxide Composites

In-situ polymerization of pyrrole was carried out withtantalum pentoxidein the presence of oxidizing agent i.e. ammonium per sulphate to synthesize polypyrrole/tantalum pentoxidecomposites (PPy/Ta2O5) by chemical oxidation method. The PPy/ Ta2O5composites have been synthesized with various compositions viz., 10, 20, 30, 40 and 50 wt. % of Ta2O5 in pyrrole. The PPy/Ta2O5 composites were characterized by employing Powder X-ray Diffraction (XRD) Spectrometer and Fourier Transform Infra-Red Spectroscopy (FTIR). The surface morphologies of the composites were studied by Scanning Electron Microscopy (SEM). The D.C.conductivities were studied in the temperature range from 30°C– 200°C. The dimensions of tantalum pentoxideparticles in the matrix have a greater influence on the conductivity values.

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Synthesis, Characterization and Enhanced Dielectric Constant of Polyaniline-Exfoliated Graphite Flakes Composites

Polyaniline/exfoliated graphite flakes (PANI/EGF) composites have been synthesized through in situ polymerization of aniline monomer in the presence of exfoliated graphite flakes. Exfoliated graphite flakes were prepared by treating the expanded graphite with sonication in aqueous alcohol solution. The composite formation and structural changes in PANI/EGf composites were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FT-IR). XRD clearly indicates the typical graphite peaks in PANI. SEM of the composites showed that EGf dispersed in the PANI matrix. The FT-IR analysis revealed there was strong interaction between PANI and EGf. Room temperature AC conductivity and dielectric response of the composites were studied in the frequency range of 100 Hz to 1 MHz. AC conductivity is independent of frequency at low frequencies and increased with increasing wt% of EGf in PANI. The dielectric constant shows unusual response with respect to frequency with very high dielectric constant of 7.92106 at 1 kHz for 25 wt% of EGf in PANI, which attributes to the stronger localization of charge carriers and electrical relaxation processes. Dielectric loss in these composites depend on the content of EGf which decreases sharply with increase in wt.% of EGf in PANI.

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