Design of almost symmetric orthogonal wavelet filter bank via direct optimization

It is a well-known fact that (compact-support) dyadic wavelets [based on the two channel filter banks (FBs)] cannot be simultaneously orthogonal and symmetric. Although orthogonal wavelets have the energy preservation property, biorthogonal wavelets are preferred in image processing applications because of their symmetric property. In this paper, a novel method is presented for the design of almost symmetric orthogonal wavelet FB. Orthogonality is structurally imposed by using the unnormalized lattice structure, and this leads to an objective function, which is relatively simple to optimize. The designed filters have good frequency response, flat group delay, almost symmetric filter coefficients, and symmetric wavelet function.     

Behaviour of micro-and nano-alumina-reinforced Mg-3Zn-0.7Zr-1Cu alloy composites processed at different sintering temperatures

This study aims to develop a magnesium-based hybrid composite via a powder metallurgy(PM)technique by simultaneously reinforcing the matrix(Mg-3Zn-0.7Zr-lCu)all...     

Sustainable utilization of incinerated paper mill sludge ash for the manufacture of building bricks

Clean Technologies and Environmental Policy - Fly ash–lime–gypsum bricks are an environmentally friendly and energy-efficient alternative to burnt clay bricks. Nowadays, the scarcity of...     

Novel Ti/Al(OH)3 and Fe/Al(OH)3 Nano Catalyzed 4-Acetamidophenyl 3-((Z)-but-2-enoyl)phenylcarbamate Synthesis and its Molecular Docking,Quantum Chemical Studies

A series of novel 4-acetamidophenyl 3-((Z)-but-2-enoyl)phenylcarbamate based chalcone moieties have been synthesized via green chemical Ti/Al(OH)₃ and Fe/Al(OH)₃ nano catalyzed pathway and spectroscopic authentication of these synthesized molecules were interpreted by FT-IR, ¹H-NMR, ¹³C-NMR, Mass and elemental analysis. In-silico molecular docking studies of the compounds exhibited excellent binding energy (??8.06 kcal and ??8.94 kcal) towards the essential requirements of targeted compounds for EGFR receptor bearing quinazoline inhibitor (PDB ID: 1M17(Lapitinib). UV–Vis and fluorescence spectroscopy measurements evidenced that there is a significant effect on the absorption and emission spectra. Cyclic voltammetry (CV) studies reveal that HOMO and LUMO values of the compounds are evidenced that band along with intra molecular charge transfer character (D-π-A). The red shift maxima (500 nm) of the emission spectra in various solvent were increasing with the solvent polarity.

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A Review on Biogenic Synthesis of Selenium Nanoparticles and Its Biological Applications

In recent decades, aquaculture and environment plays a noteworthy role in rewarding the massive stipulate in all industries. Environmental damage and disease domination are seen as essential issues in the region. In addition to these, nanotechnology as a fresh and imaginative instruments were extremely feasible in aquaculture and environmental applications. Next-generation biological applications of these nanomaterials might lead to an explosion in the bio industries. In order to utilizing the nanoparticles of biogenic expansion, selenium has plays major role in the biological progresses. Selenium (Se) is a multifunctional trace element. The present review analytically intends to the potential biological applications of biosynthesized selenium nanoparticles (SeNPs). Synthesis of SeNPs physical, chemical and biological methods has been used. Physical and chemical methods of SeNPs have high cost, non ecofriendly, highly time consuming. Therefore, there is a growing concern to develop eco friendly and sustainable methods for biosynthesis. Biosynthesis method has ecofriendly, low cost, nontoxic and zero contamination. Biosynthesis of selenium nanoparticles by plant extracts, bacteria, protein, biopolymers, seaweed extracts, fungi and yeasts have used for capping or stabilizing agents. Therefore this review represented original evidence for antibacterial, antifungal, antibiofilm, antioxidant, anticancer, antidiabetic, antimosquito larvicidal and aquaculture applications of prospective biogenic SeNPs were provided in turn in this regard of literatures. Bio synthesis of SeNPs and it is used for many applications like medical, environmental and aquaculture applications. In this review study, the importance of selenium nanoparticles as a competitive element for sustainable aquaculture and environmental applications is also examined in detail.