Visible and near infrared spectroscopy of Hayabusa re-entry using semi-autonomous tracking

A ground-based tracking camera and co-aligned slit-less spectrograph were used to measure the spectral signature of visible radiation emitted from the Hayabusa capsule as it entered into the Earth's atmosphere in June 2010. Good quality spectra were obtained that showed the presence of radiation from the heat shield of the vehicle and the shock-heated air in front of the vehicle. An analysis of the black body nature of the radiation concluded that the peak average temperature of the surface was about (3100±100) K

Breeding field peas in Western Australia

Field peas have grown dramatically in popularity in western Australia in the past five years, with the planted area increasing from a mere few hundred hectares to about 70,000 ha in 1988. This growth may continue, as more than 700,000 ha of agricultural land is potentially suitable for growing field peas. However, any such growth of the pea industry will require new cultivars with improved yield, adaptation and quality characteristics to meet local and export demands. The Department of agriculture therefore decided to start a selection and breeding programme to support the pea industry

Barley disease, scald, spot type net blotch, powdery mildew, leaf diseases, double cropping, resistance of CVT Barley

I. Barley disease survey and an unidentified disorder on forrest barley. II. Scald: crop loss assessment – 81BA20, 81A17, 81MT23, 81WH30, 81A17, 81BA20, 81MT23, 81WH30, III. Scald: epidemics in simulated populations segregating for scald resistance – 81BA22, 81MT25, 81BA22, 81MT25. IV. Scald: reactions in single plant and hill plots – 81MT24, 81MT21, 81BA21, V. Spot type net blotch: crop loss assessment – 81C17. VI. Net blotch: effect of grazing on infection levels – 81A20. VII. Powdery mildew: crop loss assessment – 81PE5. VIII. Value of whole plot scores in assessing leaf diseases. IX. Disease and yield in simulated double cropping of barley – Replications: Locations/sowing date - Chapman Research Station (81C35) - May 28, 1981 - Badgingarra Research Station (81BA46) - June 3, 1981 - Wongan Hills Research Station (81WH49) - May 28, 1981 - Avondale Research Station (81A42) - June 17, 1981 - Mt Barker Research Station (81MT43) - May 4, 1981 - Newdegate Research Station (81N24) - May 28, 1981 IX. Testing of stage 3 and stage 4 CVT barley cultivars and interstate entries to net blotch and scald during 1981/82 season – Avondale, Badgingarra and Mt Barker – 81BA23 and 81MT26, 81BA26 and 81A18

Net blotch field infection studies

Object: To study (i) the possibility of field inoculation in developing net blotch epidemic, and (ii) the varietal differences in disease development amongst commercial cultivars. Experimenal: 2 x 2 x 2 factorial arrangement in split plot design with three replications at Avondale Research Station (77A29) and Newdegate Research Station (77N20). Treatments: Benlate spraying vs. no spraying (main plots), natural infection vs. field inoculation with conidial suspension (sub plots), and 5 varieties (sub sub plots) including a 1:1 mixture of varieties Beecher and Dampier. The benlate spray is known to have no effect of net blotch and it was applied mainly to check the growth of scald and powdery mildew

1979 summary of experiments

79MT22 Mid season sown experiment, Mt Barker 79BA25 crop loss assessment trials, Badgingarra 79MT49 scoring system for leaf diseases, Mt Barker 79BA24 Inter-plot interference at various distances in Net Blotch, Badginarra Research Station 79WH17 Inter-plot interference at various distances in Net Blotch, Wongan Hills Research Station 79BA21 Inter-plot interference at various distances in Barley Scald, Badgingarra Research Station 79MT23 Inter-plot interference at various distances in Barley Scald, Mt Barker Research Station 79BA53 Scald nursery, Badgingarra 79BA54 Net Blotch nursery, Badgingarra 79WH52 Net Blotch nursery, Wongan Hills 79BA20 Crop loss assessment, Badgingarra Research Station 79BA22 Evaluating differences in field reaction of barley genotype to net blotch and associated yield variation with a view to evolve field techniques to evaluate advanced breeding material for scald resistance, Badgingarra Research Station 79MT24 Evaluating differences in field reaction of barley genotype to net blotch and associated yield variation with a view to evolve field techniques to evaluate advanced breeding material for scald resistance, Mt Barker Research Station 79WH16 Crop loss assessment studies, Wongan Hills Research Station 79BA23 Crop loss assessment studies, Badgingarra Research Station 79WH18 Evaluating differences in field reaction of barley genotype to net blotch and associated yield variation with a view to evolve field techniques to evaluate advanced breeding material for net blotch resistance 79BA26 Powdery mildew and fungicide studies, Badgingarra Research Statio

Scald, blotch and powdery mildew general comments and highlights

Locations - Avondale, Badgingarra, Mount Barker I. General Comments and Highlights. II. SCALD: Crop Loss Assessment - 80BA25, 80MT24. III. SCALD: Field Inoculation - 80A28. 80BA26. IV. SCALD: Genotype Reaction in Single Plants and Hill Plots - 80MT26. V. SCALD: Epidemic in Segregating Populations - 80A29, , 80MT25. VI. NET BLOTCH: Yield Loss Assessment - (Net Type) - 80A30, 80BA30. VII. NET BLOTCH: Field Inoculation (Net Type) - 80A31, 80BA31. VIII. \u27SPOT TYPE\u27 NET BLOTCH: Yield Losses - 80C24. IX. POWDERY MILDEW: Yield Losses - 80AL33

Radiometric temperature analysis of the Hayabusa spacecraft re-entry

Hayabusa, an unmanned Japanese spacecraft, was launched to study and collect samples from the surface of the asteroid 25143 Itokawa. In June 2010, the Hayabusa spacecraft completed it’s seven year voyage. The spacecraft and the sample return capsule (SRC) re-entered the Earth’s atmosphere over the central Australian desert at speeds on the order of 12 km/s. This provided a rare opportunity to experimentally investigate the radiative heat transfer from the shock-compressed gases in front of the sample return capsule at true-flight conditions. This paper reports on the results of observations from a tracking camera situated on the ground about 100 km from where the capsule experienced peak heating during re-entry