But other candidates exist, and spraying existing insecticides in lower doses, perhaps in clever combinations, might also be a way to target older mosquitoes, they write.
Results show that direct relationships do exist between spray conditions, oxide content in the coating and microhardness.
If plumes exist to spray ocean water onto the moon's surface and into space, as they do on Saturn's moon Enceladus, it would make studying the prospects of life in the ice-capped ocean enormously easier.
A warm core with high droplet temperature exists in the spray central region, and droplet velocity is also larger than that at spray periphery.
It can exist as powder form or mist and can be sprayed as an aerosol, added to food or drinks, or injected into a victim.
With a relatively dilute spray, nominally flammable material exists only near the droplets.
However, they also reveal that the liquid model sensitivities hold in LES, where a tight coupling exists between combustion model predictions and spray model assumptions.
The senior executive, who asked not to be identified because his comments could damage business relationships, said that a leak had not been located but that engineers had concluded that it must exist because water sprayed on the storage pool had been disappearing much more quickly than would be consistent with evaporation.
The correlation between the porosity defects, inevitably existed in thermally sprayed Fe-based amorphous coating, and the long-term corrosion behaviour of the coated steels have been studied by salt spray tests, electrochemical measurements, XPS and ToF-SIMS techniques.
And the hazard exists not only for the man who may spray this week with one insecticide and next week with another; it exists also for the consumer of sprayed products.
ASTRAZENECA PHARMACEUTICALS, a unit of AstraZeneca P.L.C., London, said it had applied to the Food and Drug Administration for approval of a nasal spray version of its migraine drug Zomig, which already exists in tablet form.
