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Organic nonlinear optical material; Piperazinium Suberate monohydrate (PZSB) C8H12O42-.C4H12N22+.H2O were synthesized from aqueous solution and good quality single crystal was grown by slow evaporation solution growth technique. The PZSB crystallizes in triclinic system with P1 space group. FTIR spectral analysis revealed the functional group present in grown crystal. The UV–visible transmission studies ascertained the lower cut-off wavelength and band gap energy of PZSB crystal. Photoluminescence spectrum of the crystal was employed to reveal the emission properties. The dielectric property was endowed as a function of frequency and temperature. The third-order nonlinear optical properties like refractive index (n2), absorption coefficient (β) and susceptibility (χ3) were evaluated by Z-scan technique.
Abstract The utilization of inexhaustible assets is a significant achievement towards viable individual versatility. Using natural fibers is a worthwhile input towards the ecological mindful of individual transportation. There were numerous advantages related with green initiative which includes better acoustic properties, weight and cost saving potential along with better working conditions. This research contributes a review in the expansive field of green composites searching out for materials with possibilities to be applied on vehicle body parts. The usefulness of the regular fiber composites for car industry was outlined. In addition, this work distinguishes a different method for assessing natural fiber composites compared with general desired criteria. This leads to a situation that natural fiber is no longer an environmental waste by its large scale industrial application which is being discussed here. Here different criteria levels were given to the categorize natural fibers. This criteria serves as a basic tool for the engineers while selecting the natural fiber composites based on its practical application. The automobile business is in the driving seat of green composites since it is here that the need is most prominent. Today we’re not offering materials that will change the landscape in the way that metal replacement did, but we are beginning to offer natural fiber composites that will present improvements, particularly in areas such as impact resistance, chemical resistance and, in some cases, process cost.
The nonlinear optical material: o-Phenylenediaminium p-Toluenesulfonate was synthesized and crystal was grown by the slow evaporation method. The grown crystals were subjected to various characterization techniques. Obtained results were extensively used in analyzing structural, linear and nonlinear optical properties of the sample.
Hybrid FRP (70 % of carbon and 30 % of 'E' glass) is used to develop the honeycomb core sandwich panels filled with energy absorbing materials by Vacuum bag moulding technique.Mechanical behaviour of the sandwich panels has been experimentally investigated by three-point bending, edgewise compression, flatwise compression and Charpy impact tests as per the ASTM standards. The failure mechanisms of the tested composites are analysed through Macro morphology. Experimental results indicated that though the change of materials satisfactorily increased the mechanical properties, the PUF filled honeycomb sandwich panel improved the high strength, specific stiffness, critical load and rigidity than other two sandwich structures. The experimental values are analyzed in ANSYS 16.0 Release software. On analyzing the performance of the composites, the PUF filled Hybrid FRP sandwich panel is best suitable at low cost and lightweight structures such as marine vehicles, airplane floors and helicopter fuselages.
In this paper, we initiate the notion of generalised interval valued intuitionistic fuzzy soft set and matrices to study and examine a special type of ambiguity. Here while classifying an interval valued intuitionistic fuzzy soft set a degree is appended with the parameterization of fuzzy sets. Selecting the right candidates according to job description, efficiency and in an unbiased platform is directly linked to the success of the organization. Considering the uncertainty, complexity and unpredictability associated with the selection of candidates a decision making process based on multicriteria is developed. The reliability of this method is illustrated with examples.
