Search Results - "Tarifa, M."

Electro-acoustic detection, identification and location of partial discharge sources in oil-paper insulation systems by Rubio-Serrano, J., Rojas-Moreno, M. V., Posada, J., Martínez-Tarifa, J. M., Robles, G., Garcia-Souto, J. A.

“…The detection of Partial Discharges (PD) is a reliable technique to analyze the status of electrical insulation in power transformers. Phase resolved partial…”
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Automatic selection of frequency bands for the power ratios separation technique in partial discharge measurements: part I, fundamentals and noise rejection in simple test objects by Martinez-Tarifa, J. M., Ardila-Rey, J. A., Robles, G.

“…Partial discharge (PD) measurements are important for the monitoring of the status of almost any type of high-voltage equipment. The use of this technique for…”
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Dynamic mixed-mode fracture in SCC reinforced with steel fibers: an experimental study by Ruiz, G., de la Rosa, A., Almeida, L.C., Poveda, E., Zhang, X.X., Tarifa, M., Wu, Z.M., Yu, R.C.

“…Highlights•First experimental study on dynamic mixed-mode fracture of fiber-reinforced concrete.•Experimental demonstration that the crack propagation may be…”
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Partial discharges and noise separation using spectral power ratios and genetic algorithms by Fresno, J. M., Ardila-Rey, J. A., Martinez-Tarifa, J. M., Robles, G.

“…Accurate measurements of partial discharge (PD) activity is essential for the application of this technique to condition-based monitoring. Noise and PD source…”
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Fracture behaviour of high-strength concrete at a wide range of loading rates by Zhang, X.X., Ruiz, G., Yu, R.C., Tarifa, M.

“…Three-point bending tests on notched beams of a high-strength concrete have been conducted using both a servo-hydraulic machine and a self-designed drop-weight…”
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Thymol, alpha tocopherol, and ascorbyl palmitate supplementation as growth enhancers for broiler chickens by Luna, A, Tarifa, M F, Fernandez, M E, Caliva, J M, Pellegrini, S, Zygadlo, J A, Marin, R H

“…ABSTRACT Consumer concern on the quality of products and animal welfare has greatly increased during the past decades. Dietary synthetic antibiotic products…”
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Automatic selection of frequency bands for the power ratios separation technique in partial discharge measurements: part II, PD source recognition and applications by Ardila-Rey, J. A., Martinez-Tarifa, J. M., Robles, G.

“…Partial discharge (PD) measurement is a widely extended technique for the diagnosis of electrical machines and power cables. Since PD and noise recognition is…”
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Dual‐species relations between Candida tropicalis isolated from apple juice ultrafiltration membranes, with Escherichia coli O157:H7 and Salmonella sp by Tarifa, M.C, Lozano, J.E, Brugnoni, L.I

“…AIMS: The objective of this study was to determine the interactions between common spoilage yeast, Candida tropicalis, isolated from ultrafiltration membranes,…”
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Study on the self-integration of a Rogowski coil used in the measurement of partial discharges pulses by Moreno, Mónica V. Rojas, Robles, Guillermo, Albarracín, Ricardo, Rey, Jorge Ardila, Tarifa, Juan M. Martínez

“…The maintenance of high-voltage power systems requires the determination of the amplitude and waveforms of fast current pulses that commonly occur in electric…”
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Uniformly dispersed submicrometre BaTiO3 particles in PS based composites. Morphology, structure and dielectric properties by Olmos, D., Martínez-Tarifa, J.M., González-Gaitano, G., González-Benito, J.

“…Composites based on polystyrene (PS) filled with submicrometre particles of BaTiO3 were prepared making use of high energy ball milling (HEBM) and hot…”
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Study of an Inductive Sensor for Measuring High Frequency Current Pulses by Rojas-Moreno, M V, Robles, G, Tellini, B, Zappacosta, C, Martinez-Tarifa, J M, Sanz-Feito, J

“…The objective of this paper is to present a simple sensor based on Faraday's Law together with an integration and amplifying stage and used this for measuring…”
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Influence of leakage magnetic fields on partial discharge activity in power transformers by Martínez-Tarifa, J M, Rivas-Conde, J, Robles, G, Sanz-Feito, J

“…Partial discharges are a clear ageing agent on insulating materials used in high voltage electrical machines. For this reason, there is increasing interest in…”
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Inductive Sensor for Measuring High Frequency Partial Discharges Within Electrical Insulation by Robles, G., Martinez-Tarifa, J.M., Rojas-Moreno, M.V., Sanz-Feito, J.

“…Partial discharges are not only a consequence but a symptom of insulation degradation in electrical equipment. Partial discharges are revealed outside the…”
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Frequency-Domain Model for Calculation of Voltage Distribution Through Random Wound Coils and Its Interaction With Stray Capacitances by Martinez-Tarifa, J.M., Amaras-Duarte, H., Sanz-Feito, J.

“…Modern pulsewidth-modulation (PWM) low-voltage drives are recognized as one of the most demanding applications for a motor. Pulses facing motor terminals are…”
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Development and full validation of a multiresidue method for the analysis of a wide range of pesticides in processed fruit by UHPLC-MS/MS by Valera-Tarifa, N.M., Santiago-Valverde, R., Hernández-Torres, E., Martínez-Vidal, J.L., Garrido-Frenich, A.

“…•First UHPLC-MS/MS method for analysis >200 pesticides in complex processed fruit.•Method fully validated by SANTE 11813/2017 document and accredited by…”
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Coke deposition during electromagnetic heating by Tarifa, J. M., Ruiz, C. P. A., Gomes, V. L. A., Araújo, J. S.

“…The thermal methods consist of furnishing heat to the oil, reducing its viscosity. The electromagnetic heating for oil recovery is based on the transformation…”
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Partial discharge and noise separation by means of spectral-power clustering techniques by Ardila-Rey, J., Martínez-Tarifa, J., Robles, G., Rojas-Moreno, M.

“…Partial Discharges (PDs) are one of the most important classes of ageing processes that occur within electrical insulation. The measurement of PDs is useful in…”
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Separation of sources in radiofrequency measurements of partial discharges using time–power ratio maps by Albarracin, R., Robles, G., Martinez-Tarifa, J.M., Ardila-Rey, J.

“…Partial discharges measurement is one of the most useful tools for condition monitoring of high-voltage (HV) equipment. These phenomena can be measured on-line…”
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Determination of nitrofuran metabolites in seafood by ultra high performance liquid chromatography coupled to triple quadrupole tandem mass spectrometry by Valera-Tarifa, Noelia M., Plaza-Bolaños, Patricia, Romero-González, Roberto, Martínez-Vidal, José L., Garrido-Frenich, Antonia

“…► A method for the analysis of nitrofuran metabolites by UHPLC–MS/MS was developed. ► Sample treatment includes hydrolysis, derivatization and extraction…”
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Reduction of Electrical Stresses on Low-voltage Induction Motor Insulation Systems through Remote-controlled Inverters by Martinez-Tarifa, J M, Sanz-Feito, J, Amaris, H

“…The use of adjustable speed drives has introduced new electrical stresses in stator insulation systems. Many applications, in which the inverter and motor are…”
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