In recursive least squares (RLS), a persistently exciting (PE) regressor guarantees global asymptotic stability (GAS) of the estimation error relative to zero equilibrium, and hence convergence parameter estimates their true values. It is known, however, that PE sufficient but not necessary for GAS, thus GAS might be achieved even if PE. Since analyses based on are ubiquitous in literature, exi...

The procedure for the quantitative phase analysis using the whole-powder-pattern decomposition method has been applied to ten-component mixtures of synthesized ceramic materials and a five-component mixture of natural products. Average deviations of the calculated weight fractions of respective phases from those prepared in mixing were within 1 weight percent (wt.%), and they were smaller than ...

1. BACKGROUND A potential source of error in the Accuracy and Coverage Evaluation (A.C.E.) coverage estimates is a matching operation which determined whether the respondents in the population sample (P-sample) were enumerated in the census and whether the enumerations in the enumeration sample (E-sample) were correct. In preparing for Census 2000, the A.C.E. planners put much effort into impro...

BACKGROUND: Public health applications using geographic information system (GIS) technology are steadily increasing. Many of these rely on the ability to locate where people live with respect to areas of exposure from environmental contaminants. Automated geocoding is a method used to assign geographic coordinates to an individual based on their street address. This method often relies on stree...

This study mapped the development of proprioception in healthy, typically developing children by objectively measuring forearm position sense acuity. We assessed position sense acuity in a cross-sectional sample of 308 children (5-17 years old; M/F = 127/181) and a reference group of 26 healthy adults (18-25 years old; M/F = 12/14) using a body-scalable bimanual manipulandum that allowed forear...

Abstract Background For various types of cancer in oncologic patients, the clinical features pulmonary embolism (PE) are unknown. The purpose study is to identify incidence and type among patients along with evaluating any associated variables. Patients methods A prospective cohort was conducted on 540 who had cancers attended a 1-day care unit oncology King Fahd Hospital, Kingdom Saudi Arabia....

1 Let E be an elliptic curve defined over Q and of conductor N. For a prime p N, we denote by E the reduction of E modulo p. We obtain an asymptotic formula for the number of primes p ≤ x for which E(Fp) is cyclic, assuming a certain generalized Riemann hypothesis. The error terms that we get are substantial improvements of earlier work of J.-P. Serre and M. Ram Murty. We also consider the prob...

The effects of three different mixers, two different feeding orders and nanoclay content on the structure development and rheological properties of PE/nanoclay nanocomposite samples were investigated. Fractional Zener and Carreau–Yasuda models were applied to discuss the melt linear viscoelastic properties of the samples. Moreover, scaling law for fractal networks was used to quantify clay disp...