ARC International plc was a developer of configurable microprocessor technology and is now owned by Synopsys. ARC developed synthesisable IP and licensed it to semiconductor companies. The configurability of the ARC happens at design time using the ARChitect processor configurator. The core was created in such a way that it is extensible. Unlike most embedded microprocessors you can add extra instructions, registers and functionality as if they were made from Lego. Wikipedia.
Velayutham G.,ARC International |
Velayutham G.,Anabond Sainergy Fuel Cell India Private Ltd
International Journal of Hydrogen Energy | Year: 2011
The function of gas diffusion layer in the fuel cell electrode is very critical as it acts as a current collector, facilitates the supply of reactants to the catalytic sites, and helps in removal of product water from the catalyst layer. In this paper attempts have been made to improve the dispersion of micro-layer by introducing an organic solvent. The electrodes were made by a screen printing method to improve the homogeneity of the gas diffusion layer. The main focus is on the effect of PTFE content in micro-layer using Ballard Avcarb 1071 carbon cloth as a substrate material. The percentage of PTFE on the substrate is kept constant in all the experiments, at about 18%. However, the percentage of PTFE in the micro-layer carbon is varied from 15 to 40 wt%. The micro-layer carbon loadingis about 3 mg/cm2 for all the electrodes. The Gurley number decreases with increase in concentration of PTFE in the micro-layer. The PEMFC cells were tested at 60 °C and at ambient pressure with relative humidity of hydrogen and air kept at 90% and 70%, respectively. The results were analyzed from the polarization curves. The DC resistances of the electrodes were correlated with concentration of PTFE in the micro-layer. The over potential values were also correlated with the Gurley number. The gas permeability, contact angle of the samples was measured and the results were correlated with performance of the PEMFC. The long-term stability of the electrode was recorded at fixed current density for various concentration of PTFE content in the micro-layer. The detailed results are discussed in this paper. © 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
ARC International and Agc Glass Europe | Date: 2010-06-02
The present invention relates to a process for the wet production of granules from powdered materials, in particular raw materials for the production of glass. The process of the invention comprises the following successive steps: (i) the powdered materials to be granulated are divided into at least two portions: a first portion and a second portion; (ii) a binder liquid is added to the first portion of powdered materials; (iii) the first mixture thus obtained is agglomerated in the granulator in order to obtain granules (a); (iv) the second portion of powdered materials is added to the granulator; and (v) the new mixture obtained is agglomerated in the granulator in order to obtain granules (b). This sequenced granulation process allows granules to be obtained that have a degree of moisture that assures their stability and their ease of handling eliminating the drying step.
Ramya C.S.,ARC International |
Ramya K.,ARC International
Journal of Applied Electrochemistry | Year: 2011
We present the electrochemical performance of solid-state EDLCs constructed using composites of perfluorosulfonic acid polymer (Nafion) with micro porous polytetrafluoroethylene (PTFE) membrane and with cellulose acetate (CA), as electrolyte with carbon as electrodes (surface area: 260 m2 g -1). The performance is compared with EDLCs constructed with perfluorosulfonic acid polymer as electrolyte. Scanning electron microscopy is used to study the morphology of the composite electrolyte while micro-Raman and IR measurements determine the integrity of the composite. The performance of the EDLC with perfluorosulfonic acid and PTFE composite electrolyte is good and comparable with the performance of the EDLC with pure perfluorosulfonic acid polymer electrolyte. A specific capacitance of 16 F g-1 is obtained for this EDLC with a maximum working potential of 2.0 V. There is an increase in the equivalent series resistance value from 0.08 Ω for the Nafion EDLC to 4.1 Ω for the Nafion/PTFE composite EDLC. However, the performance of the EDLC with the composite of Nafion/CA is poor due to substantial increase in ESR. The probable reasons are discussed. © 2010 Springer Science+Business Media B.V.
Ramya K.,ARC International |
Sreenivas J.,ARC International |
Dhathathreyan K.S.,ARC International
International Journal of Hydrogen Energy | Year: 2011
A gas humidification sub-system that does not add to the parasitic power loss is advantageous for water management in PEMFC. A membrane humidifier was fabricated with porous membrane and the performance of the single cell using this humidifier has been evaluated. The study shows that the performance of the humidifier is comparable to that of the bubble humidifier. It was further found that the humidifier is suitable for both water and exhaust cathode air as the humidifying medium. © 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
ARC International | Date: 2014-05-09
A proximity-based audio sharing system includes two identical units in wireless communication with each other. Each unit includes: a wireless transceiver module configured for communicating audio signals with the wireless transceiver module of the other unit; an audio output device connected with the wireless transceiver module and configured for playing back audio signals transmitted from the wireless transceiver module; a mute control circuit connected with the wireless transceiver module and the audio output device, and configured for selectively muting the audio output of the audio output device; and a microcontroller unit connected with the wireless transceiver module and configured for controlling the wireless transceiver module and the mute control circuit, and transmitting a control signal which includes a link signal and a mute control signal to the microcontroller unit of the other unit when the two units are in touch or in proximity of each other.
ARC International | Date: 2016-02-22
Cutlery; table forks; spoons. Kitchen utensils, namely, cooking spoons, mixing spoons, serving spoons, slotted spoons, basting spoons, disposable serving spoons; household utensils, namely, spatulas, kitchen tongs, serving tongs, salad tongs, whisks, sieves; kitchen containers; unworked or semi-worked glass, except building glass; porcelain dishes; earthenware dishes; bottles sold empty; works of art of porcelain, ceramic, earthenware or glass; statuettes of porcelain, ceramic, earthenware or glass; glass receptacles for household use; tableware, namely, serving utensils, plates, tea services, coffee services.
ARC International | Date: 2015-05-18
Containers for household or kitchen use; combs; sponges, namely, bath sponges, cleaning sponges, scrub sponges; brushes except paint brushes, namely, scrubbing brushes, dishwashing brushes, pot-cleaning brushes, dusting brushes, cleaning brushes for household use; brush-making materials; hand-operated cleaning instruments, namely, cleaning rags, cleaning sponges, mops, brooms, feather dusters, non-electric carpet cleaners, grill scrapers; steelwool; unworked or semi-worked glass not for building; porcelain, namely, porcelain cups, mugs and beverageware; earthenware, namely, earthenware cups, mugs and beverageware; bottles, sold empty; works of art of porcelain, terra cotta or glass; Statues or figurines in the nature of statuettes made of porcelain, terra cotta or glass; toilet utensils, namely, toilet brushes, cases for toilet brushes, namely, toilet brush holders, toilet tissue holders; trash cans; glasses in the nature of receptacles, namely, glass beverageware, wine glasses, drinking glasses, glass tumblers, glass carafes; tableware, namely, forks, namely, cooking forks, serving forks, barbeque forks in the nature of forks used as utensils for barbecues, spoons, namely, mixing spoons, serving spoons, slotted spoons, plates, cups, drinking glasses; indoor aquaria.
ARC International | Date: 2016-05-11
Implements for food preparation, kitchen knives and cutlery. Unworked and semi-worked glass, for non-specific use; tableware, kitchen utensils and containers for household or kitchen use; statues, figurines, plaques and works of art, made of materials such as porcelain, terracotta or glass, included in the class; glasses, containers for liquids and bar accessories; tumblers containers for beverages; glasses drinking containers; glasses receptacles.
ARC International | Date: 2015-05-28
Chargers for electric batteries; Headphones; Loudspeakers; Microphones; Portable media players; Electro-dynamic apparatus for the remote control of signals; Walkie-talkies; Wireless ear bud; Portable telephones.