Abstract: A method to eject a fluid from a surface. The steps of the method are i.) vibrating a surface of a nozzle in a direction substantially normal to the surface and ii.) providing an amplitude of the vibration that is equal to or greater than about 120 microns.

Abstract: Field is ejected from a surface of an apparatus. The apparatus comprises a.) a power supply operating at a frequency; b.) a transducer, which upon being applied the power is made to vibrate with a first amplitude; c.) a vibrating nozzle, comprising the surface, which is acoustically coupled to the transducer, to transmit the transducer vibration to the surface with a second amplitude; and, d.) a control unit to control the power supply applied to the transducer. The fluid is delivered to the surface of the nozzle. During this time the control unit cycles the power applied to the transducer at the frequency between a low power level and a high power level. The fluid is ejected from the surface when the high power level (i.e., first power level) is applied to the transducer but not when the low power level (i.e., second power level) is applied to the transducer.

Abstract: An ultrasonic nozzle for applying a coating to an exterior surface of a substrate. The ultrasonic nozzle has an ultrasonic nozzle having an amplitude. The amplitude is greater than 120 microns.

Abstract: Methods and devices for repelling insects are disclosed. The methods and devices provide personal protection from insect bites and insect landings, particularly mosquito bites. The methods and devices employ insect repellents such as pyrethroids at low (parts per billion) levels. The methods and devices effectively minimize the number of mosquitoes landing on a subject properly using the devices.

Abstract: Methods and devices for repelling insects are disclosed. The methods and devices provide personal protection from insect bites and insect landings, particularly mosquito bites. The methods and devices employ insect repellents such as pyrethroids at low (parts per billion) levels. The methods and devices effectively minimize the number of mosquitoes landing on a subject properly using the devices.

Abstract: Methods and devices for repelling insects are disclosed. The methods and devices provide personal protection from insect bites and insect landings, particularly mosquito bites. The methods and devices employ insect repellents such as pyrethroids at low (parts per billion) levels. The methods and devices effectively minimize the number of mosquitoes landing on a subject properly using the devices.

Abstract: Methods and devices for repelling insects are disclosed. The methods and devices provide personal protection from insect bites and insect landings, particularly mosquito bites. The methods and devices employ insect repellents such as pyrethroids at low (parts per billion) levels. The methods and devices effectively minimize the number of mosquitoes landing on a subject properly using the devices.