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Plusieurs marqueurs sérologiques sont actuellement utilisés en biologie clinique pour aider aussi bien le diagnostic positif, que le diagnostic différenciel entre la réctocolite hémorragique (RCH) et la maladie de Crohn (MC). La MC est associée à la présence d’anticorps (Ac) anti-Saccharomyces cerevisiae (ASCA) et moins fréquemment aux Ac anti-pancréas exocrine (EPA) (récemment identifiés comme anticorps...
In this paper, we try to maximize the power of ultra-wideband signal “UWB” sent to the target without breaching the restriction limits of the Federal Communications Commission “FCC”. The signal is a series of monocycle Gaussian pulses, characterized by the frequency center “FC”, Pulse Repetition Interval “PRI”. And the amplitude “A”. Maximizing the signal power under the FCC constraints: get a PSD...
This paper describes the design and the optimization of a rectenna in ISM band, dedicated to wirelessly supplying RFID's sensors, to replace or recharge existing batteries. The circuit is based on a double voltage rectifier designed and optimized at 2.45GHz with ADS software. We detail a new methodology to design and optimize a rectenna circuit. As a result, excellent performance is achieved in terms...
In this paper, a review is given of present state of the art about the concept of wireless power transmission i.e., transmitting power as microwaves from one place to another in order to reduce losses during the transmission and distribution of electrical power or also to deliver energy in location where conventional wires are expensive, inconvenient or impossible. This concept is known as Microwave...
This paper presents an assimilation of the transfer function of a differential pair of MOS transistors to a hyperbolic tangent function. Also it prove, that the characteristic of transfer function of a MOS differential pair is symmetrical and that is close to the one of the bipolar transistors differential pair (It represent the transfer function of this differential pair; it describe the output signal...
The electronic implants were introduced in the human body further to a surgical operation for the neurological dysfunctions treatment as well as the help or the replacement of the organs which have difficulties. For practical and medical reasons, implants have to communicate without wire with the external world. Most of them use an inductive link to supply in power and data. In this paper, we propose...
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