An opto-electronic receiver (detector and pre-amplifier) necessary to meet the demands of high capacity deep-space missions is designed for a Mars–Earth optical communication link. The receiver requirements are driven by link performance (data rate, bit-error rate, and margin), delivered power, pulse width, background signal, telescope quality, and atmospheric effects. Meeting these requirement...

Epilepsy becomes one of the most frequently arising brain disorder, and it is marked by unexpected occurrence frequent seizures. In this study, University Boon Database with ictal seizure disorder diagnosis epilepsy classified making use expectation maximization features as dimensionality reduction technique followed nonlinear model, namely, Gaussian mixture logistic regression, firefly algorit...

This study presents a novel means of shortening a Reed Solomon (RS) code at the bit level, yielding only shortened BCH subcodes. With the use of a certain basis, an RS codes over ) 2 ( m GF is mapped onto a binary image[4], which contains m concatenated BCH sub-codewords and some glue-vector codewords. With the proposed approach, there only exist some shortened BCH subcode generators in the dia...

The "conventional" way of obtaining word reference patterns for connected word recognition systems is to use isolatàd word patterns, and to rely on the dynamics of the matching algorithm to account for the differences in connected speech. Connected word recognition, based on such an approach, tends to become unreliable (high error rates) when the talking rate becomes grossly incommensurate with...

The modulation effect in the direct detection of supersymmetric Cold Dark Matter (CDM) particles is investigated. It is shown that, while normally the modulation effect in the total event rate is small, ≤ 5%, in some special cases it becomes much larger. It also becomes more pronounced in the differential event rate. It may thus be exploited to discriminate against background.

The first term is the estimation error and measures the performance of the discrimination rule with respect to the best hypothesis in H. In previous lectures, we studied performance guarantees for this quantity when ĥn is ERM. Now, we also consider the approximation error, which captures how well a class of hypotheses {Hk} approximates the Bayes decision boundary. For example, consider the hist...

frequency of medication errors and its reporting according to self- report by nurses in hospitals of khoy city shams sh[1], bagherieh f[2], feizi a[3], baghaei r[4], hashemlo l[5] received: 4 may , 2012 accepted: 19 jun , 2012  abstract:background & aims: medication errors are one of the important challenges of health care systems worldwide. it is also one of the threatening factors of patient ...