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Through experimentation, the performance of textile-reinforced concrete (TRC) and conventional concrete as reinforcing materials will be compared in this study. In this work, essential strength characteristics are determined, and the influence of the polyester filament yarns on concrete mixes is investigated by including them in M30-grade concrete for nominal mix design. An essential component of optimizing concrete strength and durability is choosing the right curing time. The study's curing techniques focus on keeping the concrete from losing too much moisture. One of three approaches can be used to do this: either leave the form-work in place, cover the concrete with an impermeable membrane after the form-work is removed, use a water-based chemical curing agent, or combine these approaches. To reduce moisture loss, the exposed surface is continuously sprayed. Layers 1, 2, and 3 of the cloth must be organized in order to evaluate its split tensile, compressive, and flexural strengths. According to the experimental findings, the specimen that has two layers of textile in it achieves the best results in the split tensile, compression, and flexure tests. Nevertheless, the addition of three textile layers causes the strengths of compression and flexibility to diminish.

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The sandwich panel exhibits higher stiffness than simple panels. The specific stiffness of sandwich panels depends on various factors like width, length, panel’s thickness, thickness of the face plate and core’s thickness of panels and type of materials used. Because of interaction effect between core and face plate, there is possibility of getting higher stiffness in multi-layered sandwich panels. In addition, incorporation of faceplate and core in the core structure varies the shear modulus and elastic modulus of core of the sandwich. However very limited research has been conducted on analytical modelling of multi-layered sandwich panels for their designing. In the present work analytical model has been developed to analyse the multilayer sandwich panels in terms of shear rigidity. flexural rigidity and deflection as a function of face plate thickness, core thickness, number of layers and beam width. Four types of specimens, those are single layer, double layer, triple layer and quadruple layer sandwich beam were prepared for this study.  The deflection of the sandwich beam was measured by UTM (ultimate tensile machine). For core, Al- foam has been used and the theoretical values of elastic modulus and shear modulus were taken from the data available for cores of Al- foam synthesized at AMPRI, Bhopal. The deflection at 1000 N calculated theoretically for single layer and quadruple layer was 14.966 mm and 0.559 mm respectively. The practical calculation of deflection was 15.608 mm for single layer and 0.557 mm for quadruple layer. The practical and theoretical calculations were in well agreement. Further, it was understood that multi-layered sandwich panels are much more advantageous in terms of low deflection than single layer or double or triple sandwich panel.

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In the current study, a biowaste, chicken eggshell, was used with commercial silica powder as a raw material resource for synthesizing porous bioceramic, larnite, granules with a solid-state reaction method. This study was carried out in two primary stages. In the first step, spherical structures were obtained using a facile spherical salt bead production technique developed by Jinnapat and Kennedy. Powdered chicken eggshells and commercial silica powder were used as the inorganic starting materials to produce the spherical structures. After the shaping procedure, it was determined that spherical granules with a broad range of granule sizes, ranging from less than 2 mm to the micrometer level, were achieved. Then, in the second step, a high-temperature heat treatment was carried out to produce porous larnite granules. Performed XRD analysis revealed that the phase purity of the larnite phase was achieved at the high-temperature heat treatment done at 1250°C for 2 hours. However, it was observed that after sintering, the size of the ceramic granules slightly increased, losing their general spherical shape by sticking to each other during the sintering process. Microstructure investigations of the larnite granules revealed a fine, homogenous microstructure with a bimodal porosity distribution. The coarse porosity between the fine larnite particle clusters was determined to reach up to 15-20 mm.

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In an attempt to enhance electrical conductance and improve the formation probability of a molecular junction, a hybrid method was established. Charge transport and conductance-length dependence (exponential decay) in hybrid acene-based molecular junctions was investigated using Density Functional Theorem (DFT) in combination with Non-equilibrium Green’s Function (NEGF) formalism. To diversify the electrical characteristics and device architectures of molecular junctions using heterogeneous structures, to achieve desirable electronic functionalities the low level acene were used to investigate such functionalities. The transmission coefficients T(E), the Frontier Molecular Orbitals (FMO) in consideration of their gap (HOMO-LUMO gap) and the electrical conductance-length dependency were investigated. The results show that hybrid molecular junctions enhanced electrical conductance and is recommended for anthracene and pentacene molecules. It also show that the anchoring materials have a significant effects on the HOMO-LUMO gap of the junction. It is also observed that the hybrid molecular junctions show a non-exponential conductance decay. Lastly, we recommend that the practical implementation of these hybrid molecular junction will bring about a lot discoveries of functionalities and applications in nano electrical circuits.

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