Some scintillation camera manufactures adhere to standard code of performance specification established by National Electric Manufactures Association (NEMA). Items such as differential and integral uniformity, spatial resolution energy resolution, etc. are all calculated with reproducible methodology that allows the user reliable technique for creation of these standards to avoid any lack of cl...

BACKGROUND Rates of durable aneurysm occlusion following coil embolization vary widely, and a better understanding of coil mass mechanics is desired. The goal of this study is to evaluate the impact of packing density and coil uniformity on aneurysm permeability. METHODS Aneurysm models were coiled using either Guglielmi detachable coils or Target coils. The permeability was assessed by takin...

The uniformity of wheat seed emergence is an important characteristic used to evaluate cultivars, cultivation mode and field management. Currently, researchers typically investigated the uniformity of seed emergence by manual measurement, a time-consuming and laborious process. This study employed field RGB images from unmanned aerial vehicles (UAVs) to obtain information related to the uniform...

Five planter configurations were evaluated for seed spacing uniformity at three field speeds using a seed location method in the field and a laboratory method involving an opto-electronic sensor system. Planter seed spacing uniformity was described using the Coefficient of Precision (CP3) measure. Results showed that CP3 measures determined using the laboratory test method were significantly di...

Sobol’ sequence generators are used actively in financial applications. In this paper, we explore the effect of the uniformity Properties A and A’ on the generator performance in high-dimensional problems. It is shown that these properties provide an additional guarantee of uniformity for highdimensional problems even at a small number of sampled points. By imposing additional uniformity proper...

The present objectives of the Drive Uniformity Program at the University of Rochester are (a) to determine the radiation and drive uniformity requirementsfordirectly driven targets, and(b)toachieve the required degree of uniformity with multiple beam irradiation of spherical targets using overlapping beams. This integrated program, which began almost two years ago, has made steady progress in m...

This paper discusses the fundamental hypothesis of policy uniformity under centralized decision making underlying Oates’ famous decentralization theorem. The theorem has come under pressure by the prediction that local public goods are provided to minimum winning coalitions rather than uniformly. The focus of this paper is on the impact of uniformity rules on political accountability. Using the...

We investigate the problem of detecting a point set’s deviation from uniformity in the unit hypercube. High uniformity is for example desirable in Monte Carlo methods for numerical integration, but also for obtaining a good worst-case bound in global optimization. In high dimensions, many points are required to get reliable results, so the point sets are preferably generated by fast methods suc...

Irrigation has become commonplace for residential homeowners desiring high quality landscapes in Florida. The goal of this project was to document irrigation system uniformity in Central Florida and to quantify distribution uniformity of residential sprinkler equipment under controlled conditions. The catch-can testing procedure used was a modified version of both the American Society of Agricu...

This paper concerns some notes about the inequality index based on the ratios between lower and upper arithmetic means recently proposed by Zenga [2006]. Beside some definitions and notation given in section 2, we show (section 3) that the inequality measure proposed fulfills the population replication principle. In the remainder of the paper our purpose is to consider a population partitioned ...