Search Results - "Catunda, S. Y."

Bioinspired transparent antenna for WLAN application in 5ￂ GHz by Silva Junior, P F, Freire, R C S, Serres, A J R, Catunda, S Y, Silva, P H da F

“…In this paper is developed a transparent antenna, bioinspired in ingae edulis mart plants, build in Indio Tin Oxide film, and flexible transparent dielectric…”
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Requirements for an integrated conditioning circuit for multiphase flow imaging using impedance wire-mesh sensors by Filho, J. B. Sales, Costa, C. A. M., Cunha, G. C. L., Belfort, D. R., Catunda, S. Y. C., dos Santos, E. N., da Silva, M. J.

“…This paper proposes an architecture of a conditioning circuit for dual-modality wire-mesh sensors, applied to multiphase flow measuring. The proposed circuit…”
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Bioinspired transparent antenna for WLAN application in 5 GHz by Silva Júnior, P. F., Freire, R. C. S., Serres, A. J. R., Catunda, S. Y., Silva, P. H. da F.

“…In this paper is developed a transparent antenna, bioinspired in ingae edulis mart plants, build in Indio Tin Oxide film, and flexible transparent dielectric…”
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SystemC AMS modeling of a sensor node energy consumption and battery state-of-charge for WSN by Vasilevski, M., Queiroz, E., Fonseca, A. L., Silva, I., Catunda, S. Y., Guedes, L. A.

“…This paper presents the of a sensor mote energy consumption together with the battery state-of-charge for wireless sensors network (WSN) using SystemC and the…”
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CMOS sigma-delta thermal modulator by Almeida, W R M, Freire, R C S, Catunda, S Y C, Aboushady, H

“…This work presents the design of a 1 st -order sigma-delta thermal modulator using a thermoresistive sensor in its feedback loop, as the summing and…”
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Maximum-Likelihood Data Fusion of Phase-Difference and Threshold-Detection Techniques for Wind-Speed Measurement by Villanueva, J.M.M., Catunda, S.Y.C., Tanscheit, R.

“…Analyses of threshold-detection and phase-difference techniques for wind-speed measurement using ultrasonic transducers are presented. The influence of…”
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Specifications for a multi-standard SBCD/ARGOS-3 integrated UHF satellite receiver by Mendes, C. C. A., Cunha, G. C. L., Vasilevski, M., Bourguet, V., Catunda, S. Y., Lima, R. N., Barros, M.

“…The specifications for the front-end design of a SBCD/ARGOS-3 integrated UHF receiver in a 0.13 μm star-dard CMOS process are derived. A low intermediate…”
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Applications of Thermoresistive Sensors Using the Electric Equivalence Principle by Freire, R.C.S., Catunda, S.Y.C., Luciano, B.A.

“…In this paper, a survey on the characteristics of thermoresistive sensors [positive temperature coefficient (PTC) and negative temperature coefficient (NTC)]…”
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DC-Amplifier-Input-Offset-Voltage Control in a Constant-Temperature Thermoresistive-Sensor-Measurement Instrument by Araujo, G.A.L., Freire, R.C.S., Jose Felicio da Silva, Catunda, S.Y.C., Fontgalland, G.

“…In this paper, the effect of dc amplifier input offset voltage on the static and dynamic performances of a generic constant-temperature…”
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A-to-D converter and lookup table dimensioning for six- or five-port phase discriminators by de Sousa, F.R., Huyart, B., Catunda, S.Y.C.

“…In this paper the use of lookup tables as a means of accelerating the digital signal processing in systems based on six- or five-port interferometers is…”
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Microelectrodes array technology: A review of integrated circuit biopotential amplifiers by Pancotto, C., Swart, J. W., Catunda, S. Y. C.

“…Microelectrode arrays have extensive applications in the biomedical field. These applications range from the study of the influence of drugs in cell cultures…”
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Designing a programmable analog signal conditioning circuit without loss of measurement range by Catunda, S.Y.C., Naviner, J.-F., Deep, G.S., Freire, R.C.S.

“…Programmable analog signal conditioning circuits can be programmed in the field to permit their use in several applications with a variety of sensors with…”
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Second-order Thermal Sigma-Delta applied to resistive bolometers on infrared detection by Vitorino, B. A. F., Belfort, D. R., Catunda, S. Y. C., Denoual, M., Freire, R. C. S.

“…The Thermal Sigma-Delta (TΣΔ) modulator is a thermal-electric system where the resistive element performs in the thermal domain part of the ΣΔ modulator (sum…”
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Lead acid battery SoC estimation based on extended Kalman Filter method considering different temperature conditions by Santos, Rafael M. S., De S Alves, Caio L. G., Macedo, Euler C. T., Villanueva, Juan M. M., Hartmann, Lucas V., Catunda, S. Y. C.

“…State of Charge (SoC) is the most important parameter to be estimated on a Battery Management System (BMS). Improper SoC management can cause faster battery…”
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SPICE-based dynamical model of a NTC thermoresistive sensor for anemometer applications by Araujo, L. V., Catunda, S. Y. C., Belfort, D., Denoual, M., Freire, R. C. S.

“…In this paper a new analog behavioral model of a negative temperature coefficient thermoresistive sensor developed using SPICE for a hot-wire Wheatstone-Bridge…”
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Analysis of a radio physical layer fault in WirelessHART networks by Winter, J. M., Pereira, C. E., Netto, J. C., Souza, F. A., Muller, I., Catunda, S. Y. C.

“…This paper presents a procedure for testing physical layer fault tolerances of Wire/essHART, one of the most important industrial wireless sensor networks…”
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A controlled-temperature hot-wire anemometer with voltage feedback linearization by Araujo, L. V., Catunda, S. Y. C., Dorea, C. E. T., Freire, R. C. S.

“…This paper proposes a new architecture of a controlled-temperature hot-wire anemometer using voltage feedback linearization. The voltage feedback linearizes…”
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Feedback control method for estimating the oxygen uptake rate in activated sludge systems by Catunda, S.Y.C., Deep, G.S., van Haandel, A.C., Freire, R.C.S.

“…The measurement and utilization of the respiration rate or oxygen uptake rate (OUR) is very important in activated sludge system control. It provides…”
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Sensitivity analysis and automatic adjustment of a controlled-temperature thermoresistive-based anemometer by Martins, V. S. G., Freire, R. C. S., Catunda, S. Y. C.

“…This paper presents an architecture of a hot-wire anemometer that adjusts the difference between the sensor temperature and the fluid temperature and maximizes…”
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Wind speed measurement method using ultrasonic sensors with stationary wavelet transform by Castro Ingaroca, N. S., Villanueva, J. M. M., Freire, R. C. S., Catunda, S. Y. C.

“…A method for measuring speed wind, based on echo detection using ultrasonic transducers with stationary wavelet transform is presented. The stationary wavelet…”
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