This paper handles the aspect of metric information extraction from SPOT images and focuses mainly on sensor modelling and the geometric accuracy potential of polynomial mapping functions, and secondly on the use of these functions for automated derivation of DTMs and generation of digital orthophotos. The sensor modelling is based on V. Kratky’s strict geometrical model. First, an accuracy ana...

We construct canonical heights of subvarieties for dynamical systems of several morphisms associated with line bundles defined over a number field, and study some of their properties. We also construct invariant currents for such systems over C. Introduction Let X be a projective variety over a field K and fi : X → X (i = 1, · · · , k) morphisms over K. Let L be a line bundle on X, and d > k a ...

Wild almond (Amygdalus scoparia) is one of the most important species that provides a variety of ecological functions in the Zagros forest ecosystem. In this study, we investigated the effects of some seed treatments on the survival and growth of Amygdalus scoparia after seed planting at different aspects and elevations under natural conditions. The seed pretreatments consisted in soaking them ...

We introduce and study the number of tilings of unit height rectangles with irrational tiles. We prove that the class of sequences of these numbers coincides with the class of diagonals of N-rational generating functions and a class of certain binomial multisums. We then give asymptotic applications and establish connections to hypergeometric functions and Catalan numbers.

This study investigated the effects of seat-height settings of wheelchairs with alternating propulsion with both legs. Seven healthy individuals with no orthopedic disease participated. Flexion angles at initial contact (FA-IC) of each joint, range of motion during propulsion period (ROM-PP), and ground reaction force (GRF) were measured using a three dimensional motion capture system and force...

Let K be a number field, Q, or the field of rational functions on a smooth projective curve over a perfect field, and let V be a subspace of KN , N ≥ 2. Let ZK be a union of varieties defined over K such that V * ZK . We prove the existence of a point of small height in V \ZK , providing an explicit upper bound on the height of such a point in terms of the height of V and the degree of a hypers...

Body mass index (BMI), weight(kg)/ height(m)2, is a widely used measure of obesity in medical science. In economics, there appeared studies showing that BMI has a negative (or no) effect on wage. But BMI is a tightly specified function of weight and height, and there is no a priori reason to believe why this particular function is the best to combine weight and height. In this paper, we address...

This paper presents a dominant height and basal area response function for juvenile (ages 2-8) loblolly pine stands that have been fertilized with a combination dose of 200 lbs/ac of nitrogen and 50 lbs/ac of phosphorus. The data used to construct the response functions originated from the Region-wide 2 Study of the North Carolina State University Forest Nutrition Cooperative. The data set incl...

We derive an analytic expression for the height correlation function of a homogeneous, isotropic rough surface based on the inverse wave scattering method of Kirchhoff theory. The expression directly relates the height correlation function to diffuse scattered intensity along a linear path at fixed polar angle. We test the solution by measuring the angular distribution of light scattered from r...