Modern information technologies, interactive forms of communication and communication have been actively introduced into the field of education over the past few years, making it possible to transfer the process of re...
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In adaptive IIR (infinite impulse response) filtering, gradient search techniques minimize the mean-square output error (MSOE). The uniqueness of the minimum MSOE estimate for exactly matching adaptive filters is a ne...
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In adaptive IIR (infinite impulse response) filtering, gradient search techniques minimize the mean-square output error (MSOE). The uniqueness of the minimum MSOE estimate for exactly matching adaptive filters is a necessary condition for global convergence of these algorithms. Although the existence of stable degenerated solutions is sufficient for the existence of local minima, it is shown by an example not to be a necessary condition. this uniquess is also guaranteed if T. Soderstrom's (1995) condition, nb - ne + 1 ≥ 0, is met when the input is white. It is proved that nb - nc + 2 ≥ 0 is a weaker sufficient condition for exactly matching models. In fact, this serves as the weakest sufficient condition.
This paper deals with the robust stabilizability and H-infinity disturbance attenuation for a class of uncertain descriptor time-delay systems with jumping parameters. The transition of the jumping parameters in the s...
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ISBN:
(纸本)1424403316
This paper deals with the robust stabilizability and H-infinity disturbance attenuation for a class of uncertain descriptor time-delay systems with jumping parameters. The transition of the jumping parameters in the systems is governed by a finite-state Markov process. A sufficient condition on robust stabilizability is established based on the stability theory for stochastic differential equations. With the help of a set of coupled linear matrix inequalities, robust H-infinity controllers are designed to stochastically stabilize the given systems with a prescribed disturbance attenuation level represented by an H-infinity norm bound constraint. A numerical example demonstrates the effect of the proposed design approach.
This paper summarizes the advantages of PA linearization via polar modulation and illustrates the necessity for high-performance supply modulators in polar transmitters. Two potential modulator solutions are introduce...
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ISBN:
(纸本)9781424418084
This paper summarizes the advantages of PA linearization via polar modulation and illustrates the necessity for high-performance supply modulators in polar transmitters. Two potential modulator solutions are introduced;both having between 4MHz and 20MHz occupied RF bandwidth and more than 65dB SFDR. These modulators process envelope information for 1625kb/s 8PSK and CDAM IS95 applications in polar PA architectures. The presented circuits and signal processing techniques can be generalized for future modulator designs.
Emergency care physicians are at the forefront of receiving patients in conditions of widespread flooding such as what happened when Typhoon Ondoy poured heavy rain on September 26, 2009 and brought the worst rainfall...
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ISBN:
(纸本)9781845644727
Emergency care physicians are at the forefront of receiving patients in conditions of widespread flooding such as what happened when Typhoon Ondoy poured heavy rain on September 26, 2009 and brought the worst rainfall to Metro Manila among recorded typhoons according to PAGASA (Philippine Atmospheric, Geophysical, and Astronomical Services Administration). Luzon was declared in a state of calamity. Flood water levels reached a record 20 feet high in rural areas. More than 2,089 people have been treated for bacterial infection in Manila and surrounding provinces and 162 people have died, more than five times the number of Leptospirosis deaths in the entire country in 2008. This study is a chart review of the clinical outcome of admitted patients diagnosed with Leptospirosis during Typhoon Ondoy from October to November 2009. This covered those patients' charts designated under the ICD (International Classification of Disease) A27 and showed their clinical outcome based on the following predictors such as age, gender, duration of hospitalization, presence or absence of complications particularly bleeding diathesis, renal failure, cardiac, neurologic and muscular complications on admission. The majority of mortalities is associated with bleeding diathesis. Cardiac involvement is common but may be underestimated. Having in mind the complications of Leptospirosis and predictors of mortality, early detection and intervention, interim guidelines on management and public health measures can respond better to expected cases especially during an epidemic/disaster.
This paper presents utilization of the fission matrix (FM) methodology to analyze a spent fuel pool. This FM approach utilizes a pre-calculated MCNP-generated database of fission matrix coefficients which are created ...
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ISBN:
(纸本)9781510808041
This paper presents utilization of the fission matrix (FM) methodology to analyze a spent fuel pool. This FM approach utilizes a pre-calculated MCNP-generated database of fission matrix coefficients which are created at different burnups and cooling times. Certain simplifying assumptions are made based on geometric and physical considerations, greatly reducing the amount of pre-computation required. This approach is capable of quickly and accurately determine pin-wise, axial-dependent fission density distribution and subcritical multiplication (M) or criticality (fc) of a spent fuel pool, in any arrangement, without recalculating FM coefficients. This paper examines the use of the FM approach for different test pool arrangements and conditions. Excellent agreements with an MCNP reference calculation have been achieved with several orders of magnitude reduction in computation time.
How do organizations achieve and sustain the process of continuous adaptation and change that is necessary to realize strategic information systems alignment? While research has focused on developing deterministic ali...
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