X. Felix Joseph

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When information is limited or costly, agents are unable to engage in optimal arbitrage. Excess price dispersion across markets can arise and goods may not be allocated efficiently; in this setting, information technologies may improve market performance and increase welfare. Between 1997 and 2001, mobile phone service was introduced throughout Kerala, a(More)
This paper presents the design, and simulation of a soft switched boost converter for a switched reluctance motor with a closed loop controller. A soft switching scheme is proposed in the converter with minimum components, which reduces the switching loss and stress across the switch so that the harmonic generation is reduced in the output. The switch used(More)
Pre Processing the abdominal ECG signal in order to extract the fetal ECG is becoming very crucial nowadays. The extracted Fetal ECG should not contain any of the noise interferences, since it will affect the diagnosis. Before extracting the Fetal ECG, the abdominal ECG must be pre processed so that the noises (such as power line interference, Base line(More)
Diabetic retinopathy(DR)is a diabetic disease, when left untreated can lead to blindness or loss of vision. In order to detect DR at its early stage, the study of micro aneurysm (MA) is necessary. This paper focuses on the comparison of three novel methods used in the early detection of MAs. The three methods include morphological operation, spatial(More)
This paper presents the design of simple but powerful soft switching scheme for a DC-DC Boost Converter with a closed loop control. A new novel soft switching scheme is proposed with a single switch and minimum components which offers load independent operations. Here only one switch is used in this converter which is switched ON at zero current and(More)
This paper presents the design of simple but powerful soft switching scheme for a DC-DC Boost Converter with a closed loop control. A new novel soft switching scheme is proposed with a single switch and minimum components which offers load independent operations. The only switch used in this converter is switched ON at zero current and switched OFF at zero(More)
It is well known that an excessive release of glutamate in the mammalian brain plays a major role in several neurological diseases. Naftazone (Etioven) is a currently used vasoprotectant drug that is metabolized in humans by reduction and glucuronidation. In the present study naftazone was found to decrease glutamate levels in the cerebro spinal fluid (CSF)(More)
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