A technique is presented for obtaining high resolution root locus plots and Bode diagrams. This is done by translating the origin of coordinates to the area of interest by an appropriate change of variable. The method is applicable to hand calculations or use of a potential analog computer. Examples include...
The use of petroleum oil prevented, to varying degrees: the
transmission of three stylet-borne viruses in three different crops.
The use of oils resulted in a marked improvement in the number of
lily bulbs harvested from treated plots as compared to the number of
lily bulbs harvested from untreated plots....
The influence of oil sprays on the field spread of the aphid-borne
bean yellow mosaic virus (BYMV) in bean was studied in 1972
and 1973. Oil sprays failed to significantly reduce virus spread in
the 1972 BYMV experiment. However, the data did suggest that the
efficiency of the oil sprays...
Experiments conducted in the greenhouse showed that the leafhopper,
Colladonus montanus reductus (Van Duzee), is a long-day
insect. This conclusion is based on the production of diapausing eggs
when the leafhoppers were kept under short days (ten hours) during
the nymphal stage and the adult pre-oviposition period. Continuous
development of...
Sustainability has been the focus of intense discussions over the past two decades, with topics around the entire product life cycle. In the manufacturing phase, research has been focused solely on environmental impact assessment or environmental impact and cost analysis in its assessment of sustainability. However, few efforts have investigated...
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Karl R. Haapala
Sustainability has been the focus of intense discussions over the past two
Zinc oxide nanoparticles (ZnO NPs) have demonstrated the ability to improve lubrication and thermal conductivity, and stand as promising metalworking lubricant and coolant additives due to their low cost compared to other NPs. While nanomaterials are a focus of research due to their potential to enable advanced technologies, little is...