90 research outputs found
Performance and stability of strategic alliances: An examination of the influence of social exchange processes
No full text3D BIOPRINTED VASCULARIZED DERMAL CONSTRUCT FOR SKIN TISSUE ENGINEERING
No full textMaster'sMASTER OF SCIENCE (RSH-FOD
Dynamics of Nonlinear Time-Delay Systems
No full textSynchronization of chaotic systems, a patently nonlinear phenomenon, has emerged as a highly active interdisciplinary research topic at the interface of physics, biology, applied mathematics and engineering sciences. In this connection, time-delay systems described by delay differential equations have developed as particularly suitable tools for modeling specific dynamical systems. Indeed, time-delay is ubiquitous in many physical systems, for example due to finite switching speeds of amplifiers in electronic circuits, finite lengths of vehicles in traffic flows, finite signal propagation times in biological networks and circuits, and quite generally whenever memory effects are relevant. This monograph presents the basics of chaotic time-delay systems and their synchronization with an emphasis on the effects of time-delay feedback which give rise to new collective dynamics. Special attention is devoted to scalar chaotic/hyperchaotic time-delay systems, and some higher order models, occurring in different branches of science and technology as well as to the synchronization of their coupled versions. Last but not least, the presentation as a whole strives for a balance between the necessary mathematical description of the basics and the detailed presentation of real-world applications
Effect of Herbal Extract Treatment on the Moisture Management Properties of Cotton Knitted Fabrics
No full textIn this work, the moisture management properties of combination herbal extract treated cotton knitted fabrics were explored. The herbs namely wild turmeric (Curcuma aromatica Salisb.) and holy basil (Ocimum tenuiflorum L.) were used for the study. The pre-treated single jersey cotton knitted fabrics were given finishing treatment with 50%:50% combination herbal extract of wild turmeric and holy basil using pad-dry-cure method. The randomized response surface Box–Behnken design using quadratic model was used for the finishing treatment with process parameters such as combination herbal extract concentration of 1%, 2.5%, and 4%; crosslinking agent concentration of 3%, 5%, and 7%; curing temperature of 80°, 100°, and 120°. The analysis of variance results analysis using Design Expert software shows that the moisture management properties of the treated fabrics are influenced by the finishing process parameters. The study results revealed that the finishing treatment has altered the moisture management properties of the treated fabrics and resulted in excellent accumulative one way transport capability which increased their overall moisture management capability
A study on the effect of bulk water content and drying temperature on the colour of dyed cotton fabrics
No full textTargeted re-sequencing and genome-wide association analysis for wood property traits in breeding population of Eucalyptus tereticornis × E. grandis
No full textGlobally, Eucalyptus plantations occupy 22 million ha area and is one of the preferred hardwood species due to their short rotation, rapid growth, adaptability and wood properties. In this study, we present results of GWAS in parents and 100 hybrids of Eucalyptus tereticornis × E. grandis using 762 genes presumably involved in wood formation. Comparative analysis between parents predicted 32,202 polymorphic SNPs with high average read depth of 269-562× per individual per nucleotide. Seventeen wood related traits were phenotyped across three diverse environments and GWAS was conducted using 13,610 SNPs. A total of 45 SNP-trait associations were predicted across two locations. Seven large effect markers were identified which explained more than 80% of phenotypic variation for fibre area. This study has provided an array of candidate genes which may govern fibre morphology in this genus and has predicted potential SNPs which can guide future breeding programs in tropical Eucalyptus
Optimization of wear parameters for aluminium 4% fly-ash composites
No full text458-464Dry sliding wear behaviour of aluminium matrix composites (AMCs) prepared by stir casting with 4% as fly ash reinforcement has been studied in the work. Dry sliding wear tests have been conducted using a pin-on-disc wear-testing machine to study the effect of changeable process parameters such as load, time, and sliding velocity, which have been used as design variables on the output parameters wear rate (WR) and coefficient of friction (COF). Sensitivity analysis has been carried out to find out the most significant parameter that can be controlled to minimize the WR. Further, the wear parameters have been optimized using the technique for order of preference by similarity to ideal solution (TOPSIS) approach to reduce the WR. Therefore, this study offers useful insights to composite manufacturers, especially for automotive industries
Dry sliding behavior of aluminum alloy 8011 with 4 % fly ash
No full textAbstract
This research is focused on the fabrication of aluminum alloy 8011 with 4 % fly ash (FA) composite (AA8011-4 % FA) using the stir casting method. The dry sliding wear characteristics of the composite were investigated using various sliding parameters. A three-level central composite design experiment was developed using response surface methodology with various parameters such as load, time and sliding velocity varied in the range of 5 to 15 N, 5 to 15 min, and 1.5 to 4.5 m × s−1, respectively. Dry sliding wear tests were performed according to the experimental design using a pin-on-disc apparatus at room temperature. The obtained regression result indicated that the developed model performed well in relating the wear process parameters, and predicted the wear behavior of the composite. The surface plot showed that the wear rate increases with increase in load, time and sliding velocity. Moreover, the surface morphology of the worn-out composite was examined using a scanning electron microscope.</jats:p
An eco-friendly detoxification of chlorpyrifos by Bacillus cereus MCAS02 native isolate from agricultural soil, Namakkal, Tamil Nadu, India
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