SYNTHESIS AND STRUCTURAL ANALYSIS OF COBALT OXIDE NANOPARTICLES

Cobalt (II, III) oxide is an inorganic compound with the formula Co3O4. It is a blackantiferromagnetic solid. As a mixed valence compound, its formula is sometimes written asCoIICo2 III O4 and sometimes as CoO.Co2O3. The XRD result confirmed the formation of simplecubic crystal structure of the Co3O4. The average crystallite size of the samples are found toincrease with increase in annealing temperature. The optical energy band gap values estimatedby UV-visible analysisreported that the energy band gap values are increased with increase incalcination temperature. So that Co3O4 nanoparticles are used as p-type semiconductor. ThePhotoluminescence sharp peaks shows a near and edge emission located at UV region and greenemissions

Synthesis, Growth and characterization of semi-organic zinc (tris) thiourea chloride crystal

Zinc (Tris) Thiourea chloride (ZTTC) a semi organic nonlinear optical material has been grown by slow evaporation process from its aqueous solution. The grown crystals were subjected to characterize by Single crystal X-ray diffraction, Powder X-ray diffraction, Fourier transform infrared spectroscopy, optical transmission spectrum and Dielectric studies. Single crystal X-ray diffraction studies confirm the orthorhombic structure. The FTIR spectrum analysis has confirmed the functional groups in the ZTTC. Its optical behavior was examined by UV-Vis and found that the crystal is transparent in the region between 841-2000 nm. Dielectric study shows that the dielectric constant decreases with increase in frequency

Influence of textile effluent on the Reaction, Structure and Properties of

The transformation of industrial wastes into useful products attracts more researches to work upon for sustainable of natural resources. In this paper, industrial wastes such as treated textile effluent and fly ash were used in the preparation of plain cement concrete with the intention of reducing the environmental pollution caused by these materials. The partially treated textile effluent was used as mixing water and fly ash was used as 30% partial replacement by weight of cement in concrete. The textile effluents were collected after anaerobic treatment and tertiary treatment from textile industry. Class F Fly ash was collected from Mettur thermal power plant. The physical and chemical properties of treated textile effluent were studied. The control concrete was prepared with potable water available in the laboratory. Experimental test was performed for compressive strength of concrete at 28 days. The powdered concrete samples were examined through infrared spectroscopy, X-ray diffraction and scanning electron microscopy to study the microstructure of concrete. The compressive strength test results revealed that anaerobic effluent water (AAE) concrete accomplished higher compressive strength than control concrete. This was also in affirmation with microscopic analysis in which the formations of hydration products were well established when compared to control concrete

Direct Power based Sliding Mode Control of AC-DC Converter with Reduced THD

Direct Power based Sliding Mode (DPSMC) control for controlling single phase AC-DC pre regulator assuring unity power factor and stable output voltage under load variation is proposed in this paper. Direct Power Based Control (DPC) commonly applied for three phase circuits, is combined with Sliding mode control (SMC) to control and regulate the single-phase AC-DC pre regulator. The proposed DPSMC apart from being simple to design and robust to parameter variations also helps in reducing the line current distortion inherent to AC-DC Converters. The design of the proposed power based sliding mode control along with its existence condition is discussed. The performance of the proposed method over conventional sliding mode control is assessed through computer simulations and the feasibility of the proposed controller is confirmed through experimental implementation carried out with the help of LabVIEW and sbRIO FPGA development board

Vibrational (FT-IR and FT-Raman) spectra and quantum chemical studies on the molecular structure of p-hydroxy-N-(p-methoxy benzylidene) aniline

The FT-IR and FT-Raman spectra of p-hydroxy-N-(p-methoxy benzylidene) aniline have been recorded in the region 4000-400 cm−1 and 3500-100 cm−1, respectively. The optimized molecular geometry, vibrational frequencies in ground state have been calculated using density functional B3LYP methods (DFT) with 6-31+G(d,p) and 6-311++G(d,p) basis sets. The observed FT-IR and FT-Raman vibrational frequencies have been analysed and compared with theoretically predicted vibrational frequencies. The geometries and normal modes of vibration obtained from B3LYP/6-311+G(d,p) and B3LYP/6-311++G(d,p) methods are reliable compared with the experimental data. The natural bonding orbital (NBO) analysis of the investigated molecule have been computed using DFT/ B3LYP/6-311++G(d,p) calculations. The calculated HOMO and LUMO energies show that charge transfer occurs within molecule

Structural study, NCA, FTIR, FT-Raman spectral investigations, NBO analysis and thermodynamic functions of N-benzyloxy carbonyl-L-alanine

The FTIR and FT-Raman spectra of N-benzyloxy carbonyl-L-alanine have been recorded and analyzed. Natural bond orbital analysis has been carried out for various intra-molecular interactions that are responsible for the stabilization of the molecule. HOMO-LUMO energy gap has been computed with the help of density functional theory. The statistical thermodynamic functions (heat capacity, entropy, vibrational partition function and Gibbs energy) have been obtained for the range of temperature 100-1000 K. The infrared and Raman spectra have been also predicted from the calculated intensities. Comparison of the experimental and theoretical spectra values provides important information about the ability of the computational method to describe the vibrational modes. In addition to these, Mulliken’s atomic charges associated with each atom have also been reported and mapped molecular electrostatic potential (MEP) surfaces have also been performed with the same level of DFT

INVESTIGATION OF MICROBIAL COUNT IN THE SOIL AND EARTHWORM GUT (EUDRILUS EUGENIAE)

ABSTRACT The soil microbes are highest in compared with earthworm gut of  Eudrilus eugeniae. Microbes are soaring numbers of present in middle gut and several nutrients are gift within the soil. In soil, including  pH,  nitrogen,  phosphorus,  potassium,  zinc,  manganese,  iron  and  copper.  Earthworm gut from E. eugeniae compared with soil contains highest bacterium and fungi. E. eugeniae gut and soil present in the bacterial colony (Total count  - 787.33; Per cent – 78.7%); fungal colony (Total  count  –  610.66;  Per  cent  –  61.0  %).  From  the  results  it  can  be  terminated  the  bacterial populations was a lot of within the soil and midgut region of E. eugeniae. Keywords: Soil, Earthworm gut, Bacteria, Fungi and Eudrilus eugeniaeÂ

HIGH-END CONTROLLING PROCESS TO MONITOR PLANTS

The suggested system promotes the control engineer to get the data values anyplace inside the control room. This latest product is suited to obtaining the control parameters like temperature and level process variables of the existing temperature process controller. Because of the static nature of control room atmosphere, the consumer ought to always be static to watch the procedure. A visible approach of entire process station is supplied in one computer monitor to ensure that a consumer can monitor the whole process from one screen. The setup from the suggested work can be used directly for monitoring the real life process control signals like liquid level and temperature only. The RTD sensor used is of platinum type and finds its application for industrial purposes in calculating the temperature of the liquid. The arduino device used here's an arguing 1 board which comprises the controller, Bluetooth shield, Bluetooth serial module. The suggested system approach supplies a good fix for your problem an arduino board can be used for obtaining process control parameters in the sensors and transmitting it using a Bluetooth module for an android device. Therefore, the parameter values could be monitored and stored concurrently. The arduino device including the arduino board combined with the Bluetooth shield and serial Bluetooth module, communicates towards the android device. The happen to be logged in and also at exactly the same instant they're monitored continuously around the android tablet screen

Seasonal Variations and Identification of Pathogenic Pollution Indicators from Royapuram Backwaters

Sewage and industrial effluents from Ennore, Chennai harbour and surrounding area have a greater impact on the Royapuram back water affecting the aquatic animals and in tum the human population. These waste carry enormous number of microbial pathogens and other heavy metals resulting in greater economic loss. The current study is aimed at analysing the total viable count of bacteria and pathogenic bacterial species in the water and sediment samples taken from different places of Royapuram fishing area, from where many kind of fishes and molluscans are taken for human consumption .The samples werc collected in pre monsoon, monsoon and post monsoon seasons. Water analysis was done by multiple tube tests to assess the MPN values. The bacteria were isolated using Zobell's agar medium, selective and non selective medias and identified using biochemical test. The organisms were identified to genus, level according to Bergey's manual. Results of field Investigations showed a definite association between the levels pollution and microbial population. Results showed a higher distribution of pathogenic and non pathogenic bacteria in the sediment than in the water sample both in monsoon and post monsoon seasons. Analysis showed the prevalence of human pathogens and fecal indicator organisms like Escherichia coli, Salmonella sp.,Vibrio sp., Shigella sp. in water and in the sediment samples

Identification of Gut Microflora from Green Mussel (Perna viridis)

The main source of Bacterial contamination of Estuary waters are domestic waste water and sewage discharge. In this present investigation, Green Mussels were collected from three different stations of Chennai Coast - Ennore, Royapuram and Muttukadu. The mussels were degutted and bacteria were isolated using selective and non-selective agar medium and further confirmed by biochemical tests. The organisms were ident illed to generic or group level according to Bergey's manual of systematic Bacteriology. Different group of fecal coli forms and Vibrio spp. have been isolated. Escherichia coli, Vibrio alginolyticus, V. parahaemolyticus and V. harveyi were the dominant species. Vibrio parahaemolyticus, a facultative pathogen widely complicated in outbreaks of gastroenteritis related to the consumption of improperly processed seafood was present in the gut of Green Mussels