plant response to salinity varies at different growth stages. information on plant response to salinity at various growth stages can be used in managing saline waters for irrigation. in order to measure the quantitative response of salinity on germination of sorghum (sorghum bicolor l. moench), a greenhouse experiment was conducted in a natural saline sandy loam soil, using plastic pots with 15...

Important emerging sources of big data are large-scale predictive simulation models used in e-science and, increasingly, in guiding policy and investment decisions around highly complex issues such as population health and safety. The Splash project provides a platform for combining existing heterogeneous simulation models and datasets across a broad range of disciplines to capture the behavior...

Given a set of n data points (xi, yi, zi) ∈ [0, 1] , two methods are established for constructing two piecewise linear copulas, respectively denoted CA(x, y) and CB(x, y), in such a way that CA(xi, yi) and CB(xi, yi) both yield an approximation of zi for all i. If the data points are (randomly) sampled from an unknown copula C, i.e. zi = C(xi, yi), then CA and CB provide two piecewise linear es...

Dynamics and control of flexible robot manipulators have received wider attention during the last two decades. In manufacturing and space applications, the use of lightweight structures in robot manipulators is motivated by their capacity for high speed maneuvers, their high payload to arm weight ratio, higher mobility, reduced energy consumption, and lower inertia forces for accurate positioni...

A systematic exposition of Sheffer polynomial sequences via determinantal form is given. A general linear interpolation problem related to Sheffer sequences is considered. It generalizes many known cases of linear interpolation. Numerical examples and conclusions close the paper. 1. The modern umbral calculus In the 1970s Rota and his collaborators [17,19,20] began to construct a completely rig...

Best parametric spline interpolation extends and refines the classical spline problem of best interpolation to (∗) inf t inf f { ∫ 1 0 ‖f (t)‖dt : f(ti) = yi, 1 ≤ i ≤ n} Here t : 0 = t1 < . . . < tn = 1 denotes a sequence of nodes and yi data in R d with y i 6= y i+1 . The R valued functionsf(t) lie componentwise in the Sobolev space L2(0, 1) and ‖ ‖ denotes the Euclidean norm in R. This proble...

The problem of verifying safety properties consists of proving that an unsafe configuration or error is not reachable from an initial configuration considering all possible program executions. clp has been shown to be a successful model for performing this task (see for example Jaffar et al. (2009) and Angelis et al. (2012)). The program P can be translated into an equivalent clp program P ′ su...