Fabrication and characterisation of a flexible thermoelectric generator using PANI/graphite/bismuth telluride composites.

Unique thermoelectric properties of low-cost, widely available conducting polymers and multi-layered graphite structures have motivated the development of flexible thermoelectric generators using screen printing for low-temperature applications. Composites of polyaniline and graphite in different ratios with one weight percentage of bismuth telluride were prepared to fabricate flexible thermoelectric generators. The performance of the devices showed that the addition of graphite to polyaniline reduced the band gap energy from 2.

Spectroscopic analysis of nanosized Zn(Ag, Ni)O systems and observation of superparamagnetism at low temperature.

To understand the impact of binary doping in ZnO, nanosized Zn(Ag, Ni)O systems were synthesized by the sol-gel method. The amount of Ag was fixed at 2 at%, and that of Ni was varied from 1 to 15 at%. Ni incorporation equal to or beyond 3 at% gave rise to the development of the NiO phase.

Evaluation of Zn: WO Thin Films as a Sensing Layer for Detection of NH Gas.

Pristine WO and Zn-doped WO were synthesized using the spray pyrolysis technique to detect ammonia gas. The prominent orientation of the crystallites along the (200) plane was evident from X-ray diffraction (XRD) studies. Scanning Electron Microscope (SEM) morphology indicated well-defined grains upon Zn doping with a smaller grain size of 62 nm for Zn-doped WO (Zn: WO) film.

An 8 MeV Electron Beam Modified In:ZnO Thin Films for CO Gas Sensing towards Low Concentration.

In the present investigation, electron beam-influenced modifications on the CO gas sensing properties of indium doped ZnO (IZO) thin films were reported. Dose rates of 5, 10, and 15 kGy were irradiated to the IZO nano films while maintaining the In doping concentration to be 15 wt%. The wurtzite structure of IZO films is observed from XRD studies post electron beam irradiation, confirming structural stability, even in the intense radiation environment.

Process and economic data for the thermo-economic analyses of IGCC power plants employing warm gas CO separation technology.

Steady state simulations were carried out in APSEN Plus®, state-point stream data were extracted from the simulation results and tabulated in sequential order for IGCC configurations. These data give detailed insights into the performance of individual process units and enable researches to better understand the interplay of various process units as well as provide data for reproducibility of the work described in Ref. (Rosner et al.

Impact of Average, Local, and Electronic Structure on Visible Light Photocatalysis in Novel BiREWO (RE = Eu and Tb) Nanomaterials.

Crystal structures of hydrothermally synthesized BiEuWO and BiTbWO nanomaterials are deduced for the first time by combined Rietveld refinement of neutron and synchrotron data using the ordered and disordered models available in literature. The ordered model is validated for the average structure of these nanomaterials, and it is further supported by the local structure analysis using neutron pair distribution function. Nanomaterials are characterized by field-emission scanning electron microscopy, transmission electron microscopy, Brunauer-Emmett-Teller surface area, diffused reflectance spectroscopy, and Raman Spectroscopy.

Clinical presentation, management, in-hospital and 90-day outcomes of heart failure patients in Trivandrum, Kerala, India: the Trivandrum Heart Failure Registry.

Objective: To evaluate the presentation, management, and outcomes of patients hospitalized for heart failure (HF) in Trivandrum, India.

Methods: The Trivandrum Heart Failure Registry (THFR) enrolled consecutive admissions from 13 urban and five rural hospitals in Trivandrum with a primary diagnosis of HF from January to December 2013. Clinical characteristics at presentation, treatment, in-hospital outcomes, and 90-day mortality data were collected.