The HFSS allowed discrimination between patients at low, medium and high risk, with mortality rates of 16, 39 and 50%, respectively. In 208 middle-aged CHF patients (age 54+/-10 years, 82% male, NYHA class 2.3+/-0.7 follow-up 28+/-14 months) the seven variables of the HFSS: CHF aetiology heart rate mean arterial pressure serum sodium concentration intraventricular conduction time left ventricular ejection fraction (LVEF) and peak VO(2), were determined.

Additionally, it was investigated whether the HFSS might be simplified by assessment of the distance ambulated during a 6-min walk test (6'WT) instead of determination of peak oxygen uptake (peak VO(2)). The performance of a US-American scoring system (Heart Failure Survival Score, HFSS) was prospectively evaluated in a sample of ambulatory patients with congestive heart failure (CHF). Zugck, C KrÃ¼ger, C Kell, R KÃ¶rber, S Schellberg, D KÃ¼bler, W Haass, M Risk stratification in middle-aged patients with congestive heart failure: prospective comparison of the Heart Failure Survival Score ( HFSS) and a simplified two-variable model. The results indicate the filter design and simulation using HFSS is reliable and have the opportunity to transfer from lab potential experiments to the industry. The response of the microwave filter circuit showed high return loss -50 dB at operating frequency at 10.4 GHz and broad bandwidth of 2.5 GHz from 9.5 to 12 GHz. The filter circuit has been carried out using Computer Aid Design (CAD), Ansoft HFSS software and designed with four parallel couple line model and small dimension (10 Ã- 10 mm2) using LaAlO3 substrate. This paper presents a new route used to design and simulate microwave bandpass filter using finite element modelling and realized broad bandwidth, low losses, small dimension microwave bandpass filter operating at 10 GHz frequency using return loss method. H.ĭevelopment of low losses, small size and broad bandwidth microwave bandpass filter operating at higher frequencies is an active area of research. Design of 2.5 GHz broad bandwidth microwave bandpass filter at operating frequency of 10 GHz using HFSS

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