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A wireless touch network is a distributed, self-organizing network of multiple sensors and actuators in combination with multiple sensors and a radio channel. Also, the security area of such a network can be several meters to several meters. The main difference between wireless sensor networks from traditional computer and telephone networks is the lack of a fixed infrastructure owned by a specific operator or provider. Each user terminal in a touch network is capable of acting as a terminal device only. Despite the long history of sensor networks, the concept of building a sensor network is not finally imposed and expressed in some software and hardware (platform) solutions. In this paper, the design and analysis of multicluster model of the sensor nodes in wireless sensor network with the help of solar energy. This proposed model provides the required energy to transmit the information between two end nodes in different cluster. The communication between the end to end clusters was increased based on this design. The implementation of sensory networks at the current stage depends largely on the specific needs of the industrial problem. The architecture, software, and hardware implementation technology is at an intensive development stage, attracting the attention of developers looking for a technological niche of future makers. [ABSTRACT FROM AUTHOR]

In the title compound [Ni(C7H5O2Br)2(H2O)2]H2O, the Ni atom adopts distorted octahedral geometry in which the bidentate ligand acts as O,O' donor defining an equatorial plane and water molecules occupy the axial positions. It is a mononuclear compound. This compound is crystallized on the monoclinic system, space group P21/c with the unit cell parameters a = 18.4561(8) Å, b = 7.3442(4) Å, c = 14.5786(8)Å, α= 90°, β= 109.057°, γ = 90° and Z = 4. The two hydroxyl groups are deprotonated and oxygen anions get coordinated with nickel. The supramolecularself-assembly of the complex is also stabilized by weak non-covalent interactions in the crystal packing, which is further quantified by using Hirshfeld surface analysis. The molecular architecture of the complex is examined by quantum chemical calculations using DFT and is compared with crystalline structure of the same. The electronic excitation energies of the complex have been simulated at TD-DFT level and are evaluated with experimental electronic spectrum. [ABSTRACT FROM AUTHOR]

New Schiff base ligand and its chelates of cobalt, nickel and copper derived from sulfamerazine and 5- bromo-2-hydroxy benzaldehyde have been synthesised. Microanalytical data, molar conductance and magnetic susceptibility values have been obtained and IR, 1H NMR, 13C NMR, UV-Visible, CV and EPR spectral studies have been carried out to suggest the tentative structure for the complexes. The antibacterial activities of the ligand and its metal complexes were also evaluated and some of them were found to show promising activity. [ABSTRACT FROM AUTHOR]

Novel coordination complexes of Co(II), Ni(II) and Cu(II) have been synthesized from 4-(3-ethoxy-2-hydroxybenzylideneamino)-N-(pyridin-2-yl)benzenesulfonamide (ESSP) Schiff base derived from sulfapyridine and 3-ethoxysalicylaldehyde. The nature of bonding and the structural features of the Schiff base and its complexes have been deduced from elemental analysis, molar conductance, magnetic susceptibility measurements, IR, 1H NMR,13C NMR, UV-Vis, cyclic voltammetry, fluorescence and EPR spectral studies. The spectral data of the complexes have revealed bidentate coordinating nature of the Schiff base through azomethine nitrogen atom and phenolic oxygen. The Schiff base and its metal complexes were screened for their antimicrobial activity. The complexes showed enhanced antimicrobial activity as compared to uncomplexed Schiff base. [ABSTRACT FROM AUTHOR]