On the thermal conductivities of certain poor conductors

We have been engaged for several years in an attempt to measure, by the aid of the so called "Wall Method," the thermal conductivities of certain relatively poor conductors; and the variations of these conductivities with the temperature. ..

Ropewick for Cape Tulip Control, boomsprays, saffron, patersons curse control

Ropewick for Cape Tulip Control - 82N043. Controlled Droplet Applicator (C.D.A.) versus conventional boomspray - 83WH51, 83WH52, 83WH41, 83LG38, 83LG39, 83N28, 83N49, 83N043, 83ME55. Saffron control in pasture - 83GE37. Saffron control in lupins - 83GE38. Patersons curse control in an oat hay crop – 83NR4. Patersons curse control in an oat hay crop – 83NR5. Patersons curse control along roadsides – 83GE39

Summary of experimental results.

81GE22. 81GE28, soursob control. 81N056, in cereals. 81N057. 82LG34, chemical x water volumes (broadleaved weeds). 82LG36, hoegrass, rate x volume (ryegrass). 82N039, crop damage in wheel tracks x spraying. 82N043, ropewick for cape tulip control. 82NR3, patersons curse control in hay crops. 82NR8, patersons curse control in hay crops. 82N055, hoegrass, rate x volume (wild oats). 82N056, chemical x volume (broadleaved weeds). Demonstration, soursob control in cereals. 82ME44, matricaria control in cereals. 82ME57, crop damage in wheel tracks x spraying. 82ME59, chemical x volume (broadleaved weeds). 82ME60, hoegrass, rate x volume (ryegrass). 82ME81, matricaria control in pastures. 82ME86, cereal tolerance weed free site. 82ME89, volume x speed of spraying

Dynamic model for failures in biological systems

A dynamic model for failures in biological organisms is proposed and studied both analytically and numerically. Each cell in the organism becomes dead under sufficiently strong stress, and is then allowed to be healed with some probability. It is found that unlike the case of no healing, the organism in general does not completely break down even in the presence of noise. Revealed is the characteristic time evolution that the system tends to resist the stress longer than the system without healing, followed by sudden breakdown with some fraction of cells surviving. When the noise is weak, the critical stress beyond which the system breaks down increases rapidly as the healing parameter is raised from zero, indicative of the importance of healing in biological systems.Comment: To appear in Europhys. Let

Comparison of conventional boomspray and C.D.A. equipment for weed control in cereals

l. 84N067 - Ryegrass 2. 84N068 - Capeweed 3. 84ME69 - Capeweed 4. 84 (40-41) - Ryegrass & Radish 5. C.D.A. - Capeweed 6. Boomspray Capeweed Comparison of conventional boomspray and C.D.A. equipment for weed control in cereals – 84C40, 84C41, 84ME69, 84NO67, 84NO68. Effectiveness of Roundup C.T. with and without crop oils applied through Controlled Droplet Applicators (C.D.A.) – Wongan Hills Research Station. Effectiveness of Roundup C.T. with and without crop oils applied through a conventional boomspray – Wongan Hills Research Station

Saffrom thistle, seed set control

Trial 87ME119 - Saffron thistle, seed set control. Trial 87TS38 - Saffron thistle control (seed set) Trial 87JE42 - Seed set control in Saffron thistle. All treatments had some measure of reducing seed production. Best control was obtained by applying chemicals just at or prior to flowering

Control of peas and lupins in oats

Trial 87A30 All lupin treatments satisfactory. Treaments 4, 8 and 9, ie Dicamba 500 ml and both treatments with diuron + 2,4-D amine would not control peas sufficiently to prevent rejection of line of oats. Peas are more difficult to control

Control of peas and lupins in wheat

Trial 87A29 Lupins were easier to kill than peas. Glean applied pre-sowing gave very poor control of both peas and lupins. The treatment using higher rates of 2,4-D amine in diuron mix also caused lower yields. The Tordon 242 treatment appeared to cause some yield depression

Control of four o\u27clock (Oxalis purpurea) in cereals.

Trial 87KA85 Because of the late dry season, yields were below expected. Under these conditions there were high visual crop damages recorded early after the treatments applied

Control of Saffron thistle in pasture using goats.

Trial 85TS27 / 87TS27 Saffron thistle seedling densities remained relatively constant during the first two years of the trial, irrespective of the grazing treatments\u27 effectiveness. However on the grazing treatments where goats were preventing seed formation, once the bulk of dormant seeds had been depleted, seedling density started to decline