Towards large scale microwave treatment of ores: Part 1 – Basis of design, construction and commissioning

Despite over thirty years of work, microwave pre-treatment processes for beneficiation of ores have not progressed much further than laboratory testing. In this paper we present a scaleable pilot-scale system for the microwave treatment of ores capable of operating at throughputs of up to 150tph. This has been achieved by confining the electric field produced from two 100kW generators operating at 896MHz in a gravity fed vertical flow system using circular choking structures yielding power densities of at least 6x108 W/m3 in the heated mineral phases. Measured S11 scattering parameters for a quartzite ore (-3.69±0.4dB) in the as-built applicator correlated well with the simulation (-3.25dB), thereby validating our design approach. We then show that by fully integrating the applicator with a materials handling system based on the concept of mass flow, we achieve a reliable, continuous process. The system was used to treat a range of porphyry copper ores

Integrating sequence and array data to create an improved 1000 Genomes Project haplotype reference panel

A major use of the 1000 Genomes Project (1000GP) data is genotype imputation in genome-wide association studies (GWAS). Here we develop a method to estimate haplotypes from low-coverage sequencing data that can take advantage of single-nucleotide polymorphism (SNP) microarray genotypes on the same samples. First the SNP array data are phased to build a backbone (or 'scaffold') of haplotypes across each chromosome. We then phase the sequence data 'onto' this haplotype scaffold. This approach can take advantage of relatedness between sequenced and non-sequenced samples to improve accuracy. We use this method to create a new 1000GP haplotype reference set for use by the human genetic community. Using a set of validation genotypes at SNP and bi-allelic indels we show that these haplotypes have lower genotype discordance and improved imputation performance into downstream GWAS samples, especially at low-frequency variants. © 2014 Macmillan Publishers Limited. All rights reserved

WSUH-1D Review of damage following ligtning strike, 30 November 1981

Translated from GermanSIGLEAvailable from British Library Document Supply Centre- DSC:5207.00(RAE-LIB-Trans--2103)T / BLDSC - British Library Document Supply CentreGBUnited Kingdo

AF-CORAL Language features to integrate Mascot with CORAL 66(U)

SIGLELD:0678.231F(AD-A--129-272)(microfiche) / BLDSC - British Library Document Supply CentreGBUnited Kingdo

Advances in aeroacoustic windtunnel testing techniques for aircraft noise research

SIGLELD:8610.2(RAE-TM-AERO--1769). / BLDSC - British Library Document Supply CentreGBUnited Kingdo

Ada/APSE A successor to CORAL 66 in the 80's

SIGLELD:2265.63F(BR--87073)(microfiche) / BLDSC - British Library Document Supply CentreGBUnited Kingdo

Some applications of Hartmann-type sources in aircraft noise research

SIGLELD:8670.2(RAE-TM-AERO--1877). / BLDSC - British Library Document Supply CentreGBUnited Kingdo

On A Powder Consolidation Problem

. The problem of the consolidation of an aerated fine powder under gravity is considered. The industrial relevance of the problem is discussed and a mathematical model is introduced. The mathematical structure is that of a coupled system for three unknowns, pressure, stress and height of the powder in the (axisymmetric) bunker containing it. The system itself consists of a parabolic PDE, an ODE and an integral equation determining a free boundary corresponding to the height of the powder. Existence and uniqueness of a solution is established. A numerical method based on a formulation of the semidiscretized problem as an index 1 DAE is proposed and implemented. The feasilibility of the approach is illustrated by computational results. Key words. consolidation, multiphase, parabolic, free boundary, DAE, integral equation. AMS subject classifications. 35K55, 65L80, 65M06, 76S05 1. Introduction. One important factor determining the mechanical properties of fine powders is the possible pres..