216 research outputs found
Impacts of Ta Buffer Layer and Cu-Ge-Te Composition on the Reliability of GeSe-Based CBRAM
No full textsponsorship: This work was supported by imec's Core Partner Industrial Affiliation Program on Emerging Memories. The review of this article was arranged by Editor P. Du. (Corresponding author: Janaki Radhakrishnan.) (imec's Core Partner Industrial Affiliation Program on Emerging Memories)status: Publishe
Efficacy of sugarcane bagasse to produce bacterial biofilm in water for fish culture
Full text linkThe present study has been conducted to understand the efficacy of sugarcane bagasse to produce bacterial biofilm in water. The study period was 90 days. Total Plate count (TPC) in water and substrate was estimated on nutrient agar at room temperature by spread plate method. The TPC in water was the highest (2.10 x 104 ml–1) after 45 days. The average TPC of bacteria on bagasse varied from 140.0 (15d) to 30.25 (90d) x104·g–1. The present study demonstrates that the sugarcane bagasse can produce more bacteria in water thereby the fish can effectively utilize biofilm grown on sugarcane bagasse and provision of a substrate reduces the need for artificial feed.---------------------------------------------------------------------------------------------------------Efficacy of sugarcane bagasse to produce bacterial biofilm in water for fish culture M.V. Radhakrishnan and E.SugumaranDepartment of Zoology, Annamalai University, Annamalainagar – 608 002, Tamilnadu, India *Corresponding Author, Email: [email protected] Cite This Article As: M.V. Radhakrishnan, E. Sugumaran. 2010. Efficacy of sugarcane bagasse to produce bacterial biofilm in water for fish culture. J. Ecobiotechnol. 2(2):41-44
Baclofen-induced neurotoxicity in a patient with end-stage renal disease
No full textBaclofen, predominantly excreted by the kidneys is accumulated in patients with renal insufficiency leading to the central nervous system toxicity. Here the author reports a patient with end-stage renal disease on maintenance hemodialysis (HD) who developed drowsiness and became unresponsive within a day after taking single 10 mg dose of baclofen. Patient improved completely after two sessions of HD
A monolithically integrated power JFET and Junction Barrier Schottky diode in 4H silicon carbide
No full textEfficiency of power management circuits depends significantly on their constituent switches and rectifiers. The demands of technology are increasingly running up against the intrinsic properties of Si based power devices. 4H-Silicon Carbide (SiC) has superior properties that make it attractive for high power applications. SiC rectifiers are already a competitive choice and SiC switches have also been commercialized recently. Junction Barrier Schottky (JBS) diodes, which combine the advantages of PN and Schottky, have higher Figure of Merit (FOM) as rectifiers. Among switches, a robust and mature process has been developed for Silicon Carbide Vertical Junction Field Effect Transistors (VJFETs), which currently gives it the highest unipolar FOM. Switches are frequently combined with anti-parallel diodes in power circuits. This thesis describes the development of a SiC-based monolithically integrated power switch and diode. Monolithic integration increases reliability and efficiency, and reduces cost. Because of their superior properties and similarities in fabrication, we chose the SiC VJFET and JBS diode as the switch and rectifier. Detailed design, fabrication and characterization of the integrated switch to block above 800 V and conduct current beyond 100 A/cm2 is explained. In this process, the first physics-based 2-D compact model is developed for reverse leakage in a JBS diode as a function of design parameters. Since the gate-channel junctions of SiC VJFETs cannot be assumed to be abrupt, an existing analytical model for Si VJFETs is extended to account for graded gate-channel junctions. Using these analytical models, design rules are developed for the VJFET and JBS diode. Finite element simulations are used to find the best anode layout of the JBS diode and optimize electric field termination in the integrated device to ensure their capability to operate at high voltage. Finally, a spin-on glass based process is developed for filling the gate trenches of the VJFET to improve long-term robustness in extreme environments. The integrated power switch developed in this thesis points to the attractions of monolithic integration in SiC power circuits. Analytical compact design equations derived here will facilitate faster and easier design of switches and rectifiers for desired circuit operation.Ph. D.Includes bibliographical referencesIncludes vitaby Rahul Radhakrishna
CAD TOOLS FOR HYBRID INTEGRATION
No full textIn this thesis, we present a graphical computer-aided design (CAD) environment for the design, analysis and layout of printed electronic batteries in the first phase and the parasitic extraction of the connecting wires in the second phase. The primary motivation of our work is that this prototyping software tool so far does not exist. Our tool has been integrated within the existing CAD tool which allows quick prototyping and simplifies the interface between the system designer and the device manufacturer. This tools supports the schematic and layout entry, rule checking and netlist generation. The first phase of the device synthesis modelling is based on Enfucell printed batteries, by which using the CAD tool, the shape of the battery is optimized and designed to fit the product and is able to simulate the performance during the optimization, whereas the second phase is the parasitic extraction using an extracting tool named fasthenry, which is integrated to our CAD tool to extract unwanted resistance and inductance within the shared wires between the battery and other devices. We believe that the availability of this tool is useful to the CAD community for novel ideas in the circuit design for flexible hybrid electronics.+46764354255, +4672269494
Investigation on Microorganisms and their Degradation Efficiency in Paper and Pulp Mill Effluent
No full text
The JRP statistical programs for high speed IBM digital computers [by] B. K. Radhakrishnan and Nils B. Mattsson, with the assistance of Norman A. Starr.
No full texthttp://deepblue.lib.umich.edu/bitstream/2027.42/7195/5/abv5851.0001.001.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/7195/4/abv5851.0001.001.tx
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