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Background
IBD diagnosed after the age of 60 is increasing. Data on post‐operative complications in elderly onset IBD are scarce.
Aim
To describe the incidence of and factors associated with post‐operative complications in elderly onset IBD, diagnosed after the age of 60.
Methods
Using EPIMAD Cohort (1988‐2006), among 841 incident IBD patients, 139 (17%) underwent intestinal surgery, including...
This paper presents a new methodology for reducing power consumption of power amplifiers from low level to high level RF power with minimal amplitude and phase variations. The study also highlights the important design considerations to achieve a good efficiency and excellent amplitude and phase tracking among the SSPAs.Using this methodology a flexible S band SSPA has been designed for the new generation...
A compact, high efficiency 25W Kuband SSPA has been developed for the Siral Altimeter, cryosat program. SSPAs have been used in radar application for many years. The main advantages of the pulsed SSPAs are the followings: - Low distortion of amplitude and phase during the pulse. - High reproducibility of identical pulses. - High quality of output spectrum: low harmonic contents and reduced group delay...
A very high efficient, low distortion C-band power amplifier using a linear and non-linear models of the PHEMT devices has been developed. Single stage amplifier fabricated with 4??18mm gate width PHEMT devices exhibits a power output of 44 dBm at 2dB of gain compression, a linear gain of 11.5dB and an associated PAE from 50% to 52% in the frequency range of 3.6-3.9GHz. These excellent results are...
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