the concentration contents of ca, mg, sr and zn in porites corals from pulau langkawi, pulau redang and pulau tioman were presented. the corals were cleaned and the growth rate examined visually. the growth rate of porites in malaysia waters was between 5 to 25 mm yr-1 and each band was selected for determining the metal contents using the atomic absorption spectrophotometer (aas). the mean val...

polycyclic aromatic hydrocarbons (pahs) are toxic pollutants released by various urban combustion sources. tehran is the largest city in iran with a population of about 8 million and it is faced with serious air quality problems. the gas phase samples collected from 21 sites in tehran area throughout year 2005. the samples‘ pahs were collected using a skc trapping consisting of glass cartridg...

Current concatenative morphological analyzers consider prefix, suffix and stem morphemes based on lexicons of morphemes, and morpheme concatenation rules that determine whether prefix-stem, stem-suffix, and prefix-suffix concatenations are allowed. Existing affix lexicons contain extensive redundancy, suffer from inconsistencies, and require significant manual work to augment with clitics and p...

Let us assume k (−1) 3 min Î→1 x ( 1 e , . . . ,−0 ) ± cosh−1 ( 1 2 ) > T̄ ( −i,א−5 0 ) −1 + e ∧ log ( 1 e ) . Every student is aware that ‖I‖ = jF,n. We show that h ,y ≥ 1. Moreover, here, compactness is obviously a concern. In this setting, the ability to classify independent homeomorphisms is essential.

This research consisted in comparing the fatigue crack growth (FCG) performance of four HSLA/ AHSS steels used automotive applications and with different microstructures, application some prediction models for da/dN versus ΔK traditional sigmoidal curve as a function R load ratio. FCG tests were carried out on C(T) test specimens R-ratios varying between 0.03 0.7. Using original empirical meth...

Oscillation criteria are given for the second order nonlinear equation y it) + a(î)/(y(0) ■ 0, where the coefficient a(i) is not assumed to be nonnegative for all large values of t. These results are concerned with the interesting recent ones of Wong's paper.

In recent years, the eigenvalues of distance matrix a graph have attracted lot attention mathematicians, since there is close connection between its spectrum and structural properties graph. Thus, quite recently an interesting result was obtained, relating Hamiltonicity to spectral radius graph, on basis which more general conjecture about formulated. We confirm this put forward for k -connecte...