Archives-December  

DMFC has tremendous potential in serving as a source of clean and renewable energy. Different catalyst combinations are prepared and characterized in DMFC at various operating conditions. The characteristic curves are plotted. Effect of prepared catalyst in DMFC performance is analyzed at load and no load conditions. Demerits of Platinum catalyst is minimized to a great extent by the specially designed catalyst combinations. Based on the DMFC performance, the best catalyst combination (Pt-Ru/C) is identified and analysed in different operating conditions.

Steel tie rods are being used in load carrying components such as steering systems, suspension bridges, spokes of automotive vehicles, etc.. In steel tie rods, the bearing capacity is determined by steel tie rod body strength and also the strength of the threaded connection, which can resist force. The past literature reviewed that work has been done related to triangular and trapezoidal threads and also studied failure analysis of threads. In this paper focus to analyze the failures of different threaded shapes like acme, buttress and modified square. The material has taken for this project is mild steel is2062. The tensile rupture experiments were done to test maximum allowable axial working loads for different numbers of turns of engaged threads. By carrying out these experiments, Found that Maximum and Minimum Displacement at Ultimate Load in Tensile Test. For validating the design, the models were drawn in Catia V5 and analysis was carried using ANSYS 14.0 to find out the axial displacement, von misses stresses, and sliding distance. After careful analysis, concluded that the minimum number of turns of thread engagement to avoid the breakdown of thread connection in the tie rod.

The FMI (Fullbore formation microimager) log provides clear identification of wells geological characteristics. In this study, the identification and interpretation of the structures, texture, lithology, porosity, bedding, lamination, diagenetic processes, porous/non porous layers and determination of facies, sequence stratigraphy and reservoir characteristics in kangan formation, are discussed using FMI logs, thin section, core photograph and porosity logs. The Kangan lower Triassic aged carbonates formation, was deposited in the giant South Pars gas field in the Persian Gulf Basin and consists of limestone, dolomite, anhydritic dolomite, and thin shaly layers facies. The aim of this study is to provide the FMI farcies, sequence stratigraphy and subunits reservoir characteristics changes of Kangan Formation. Based on FMI logs and comparing with thin section, core photograph and porosity logs introduced 12 FMI facies(FF) in kangan formation (Table1). Three major composite depositional sequences have then been defined: K1A, K1B and K2A. They have been further subdivided into 12 depositional units, 6 tight (low reservoir characteristics) and 6 conductive (high reservoir characteristics).

The Kunbi of Uttara Kannada District are divided into two endogamous groups namely Kunbi and Atte Kunbi. They have migrated from Goa and entered Karnataka State through the Coastal region. They are settled down in the five taluks of Uttara Kannada District namely Yellapur, Joida, Karwar, Ankola and Haliyal. They live in the remote parts of the forest. When the somatometric measurements of Kunbi males compared with males of the local population of the present study show significant differences in the majority of the measurements. Thus, Kunbi somatometrically represent different groups in Karnataka.

This paper focuses on reviewing the various Steganography techniques that have been reported by researchers and scientists in the literature. The motivation of this paper is to overview the past and current Steganography techniques to embed the Stego image which bypass the human visual system without being detected. The techniques which operate both on text and image are considered. The focus is also given for the use and future scope of these techniques. The techniques are reviewed on the parameters of security, peak signal to noise ratio of stego image, mean square error and the capacity of data that can be carried out on the network without being detected. The paper is divided in three major sections which are the implementation in spatial domain, frequency domain, adaptive or mixed technique

Phytochelatins (PCs), are enzymatically synthesized Cys-rich peptides, found widely distributed in the plant kingdom and was the functional equivalent of metallothioneins (MTs). Synthesis of PC was activated by the exposure to heavy metal ions like cadmium. PC may have a role in the metal ion detoxification and help in phytoremediation approach. Hence this study was focused on the structural aspects of phytochelatin protein isolated from Cynodon dactylon. Protein sequence was retrieved from NCBI protein database with gene bank id AAO138102. Various bioinformatics online tools like GOR 4, Geno3D, ProtParam, ProtScale, TmPred, EsyPred3D analysis and GlobPlot were used to predict the structure and properties of the protein. An unstable protein with 504 amino acid residues and of molecular weight of 55803.5 Daltons was identified by In Silico studies. Further analysis using a wide range of tools revealed that the protein is a structural variant of the phytochelatin protein.

Recent investigation was performed to explore the cytotoxic activity of various extracts from the leaves of Adina Cordifolia against Ehrlich Ascites Carcinoma (EAC) cell lines using different In-vitro cytotoxic assay at 200µg/ml. Results found that acetone and ethanol extract exhibited significant cytotoxic activity, but higher cytotoxic activity was found in acetone extract.

Nowadays traffic are very high near the signals to overcome long time IR sensors are used. These IR sensors are placed near the junction it senses the heavy traffic in that signals switches to green to make move on that heavy traffic vehicles. By implementing this the wastage of time can be reduced on the roads.

Abstract: The generation of solid waste has become an increasing environmental and public health problem everywhere in the world, particularly in the developing countries. The problem of inadequate solid waste management is a major environmental challenge all over the world and Tiptur town is no exception. The problem has become compounded due to technical, financial and institutional constraints and landfill sites have further contributed to environmental degradation. The present study was to investigate the heavy metal contamination of ground water sources in and around Tiptur Town . Heavy metals like Fe++, Cd, Zn, Mn, Cr, Pb and Hg estimated to analyze ground water pollution load with respect to human health concern ,since Tipturians depend on ground water for drinking purpose. In the present investigation observed result showed that iron concentration varied between a minimum of 0.03 mg/l to a maximum of 2.9 mg/l. Other trace metals Zn, Mn and Cr were within the permissible limit and Pb, Hg and Cd were below detectable level.

We have studied LRS Bianchi type-I magnetized cosmological models in the presence of scalar tensor theory proposed by Saez Ballester [1]. We assume that the dark energy (DE) is minimally interacting, has dynamical energy- density, anisotropic equation of state parameter (EoS). Exact solutions of Einstein’s field equations are obtained by assuming a special law of variation for the mean Hubble parameter, which yields a constant value of the deceleration parameter. The geometrical and physical aspects for the models are also studied.