Advances in scientific knowledge and technology on a high scale, changing the cultural, social, political life structures of world community so quickly, resulting emergence demands for fulfillment increasing human needs can change circulating trend itself, also able to lifestyles, perspectives , as well person's habits. One lightest habit changes is liking coffee drinks, both homemade enjoying ...

Radiofrequency is performed with thin electrodes that are placed in the center of a tumor under ultrasonographic guidance. Radiofrequency waves induce ionic agitation which destroys neighboring tissues by heat. The most recent equipment can produce necrosis of 4-cm diameter areas. Efficacy is enhanced by blocking intrahepatic blood flow which naturally refreshes the liver parenchyma. The techni...

In this paper we consider a possible improvment of conjugate gradient methods commonly used for training multilayer perceptrons. These methods rely on a line search procedure which is partially responsible for the fact that only local minima are found. We propose to perform line searches along very long lines in order to nd global minima; as usual line search procedures are not suitable in this...

Robust Header Compression (ROHC) has recently been proposed to reduce the large protocol header overhead when transmitting voice and other continous media over RTP/UDP/IP in wireless networks. In this paper we evaluate the transmission of Global System Mobile telecommunications (GSM) encoded voice with ROHC over a wireless link. We evaluate the bandwidth savings and the voice qualities using a ...

In this paper we define a new linearity measure which can be applied to open curve segments. The new measure ranges over the interval (0,1], and produces the value 1 if and only if the measured line is a perfect straight line segment. Also, the new linearity measure is invariant with respect to translations, rotations and scaling transformations.

This paper is focused on a novel design of stepped diaphragm for MEMS capacitive pressure sensor used in tire pressure monitoring system. The structure of sensor diaphragm plays a key role for determining the sensitivity of the sensor and the non-linearity of the output.First the structures of two capacitive pressure sensors with clamped square flatdiaphragms, with different thicknesses are inv...

An overview on linearity and efficiency performance optimisation in power amplifier (PA) is presented, stressing the required trade-off demanded to PA designers. For efficiency improvement, the harmonic tuning strategies are discussed, with their advantages and major drawbacks. For linearity improvement, the IMD sweet spot optimisation strategies is presented as a solution to obtain low intermo...