Extended Partial-Wave Analysis of piN Scattering Data

We present results from a comprehensive partial-wave analysis of pi+-p elastic scattering and charge-exchange data, covering the region from threshold to 2.6 GeV in the lab pion kinetic energy, employing a coupled-channel formalism to simultaneously fit pi-p-->eta n data to 0.8 GeV. Our main result, solution SP06, utilizes a complete set of forward and fixed-t dispersion relation constraints applied to the piN elastic amplitude. The results of these analyses are compared with previous solutions in terms of their resonance spectra and preferred values for couplings and low-energy parameters.Comment: 21 pages, 11 figure

High Throughput Computing Resource Management

of their applications. As more scientists, engineers, and decision makers use computers to generate behavioral data on complex phenomena, it is not uncommon to find users who ask the question: How much behavioral data can I generate by the time my report is due? This question represents a paradigm shift. In contrast to other users, these users measure the power of the system by the amount of work performed by the system in a fixed amount of time. For these throughput oriented users, the fixed 4 High Throughput Computing Resource Management time period is measured in the relatively coarse units of days or weeks, whereas the amount of work is seemingly unbounded --- one can never have too much data when studying a biological system, testing the design of a new hardware component, or evaluating the risk of an investment. The computing needs of these throughput oriented users are satisfied by High Throughput Computing (HTC) environments that can generat

Michael P. Evans, Thermo Electron

more attractive and valuable to the customer. But can a coal analyser be used to control and improve the Michael P. Evans, Thermo Electron Corp., looks at how plant operators can have greater control over their operations. Figure 1. Thermo Gamma-Metrics' CQM is used to control the blend of raw coal that bypasses a preparation plant. operation of a coal preparation plant? With the exception of froth flotation circuits, coal preparation plants wash coal in units that separate material based on the particles' specific gravity. Distribution curves are used to measure and predict the performance of this coal cleaning equipment. The distribution curve is a graphic representation of the probability that a particle of a given specific gravity will report to the product or the clean coal side of the washing unit. The sharpness of the separation is determined by the steepness of the distribution curve between 25% and 75% reporting to product. The separating gravity of the unit is defined

Walsh-like Nonlinear Phase Orthogonal Transforms for CDMA Communications

been used as spread spectrum codes in CDMA communications. Popularity of these codes is more from the ease of generation from standard kernels rather than the efficiency of the codes. Availability of these codes is limited in number and in their lengths. By relaxing the restrictions like zero crossings, linear phase etc on the nature of codes, number of new sets of codes can be generated. In this paper, methodology has been proposed for generating new Walsh-like family codes that can be used for both synchronous and asynchronous communications. Performance characteristics of these codes have been studied in AWGN and in Rayleigh fading channels. These codes outperform Walsh codes in their asynchronous channel behavior and closely match with Gold codes performance. In addition, we present in this paper that there are a good number of such desirable code sets available in the binary sample space with different transform sizes. These new binary sets with good performance and flexible code lengths might help us to improve the spread spectrum capabilities of future CDMA communications systems. I