In a first aspect, the embodiments of the invention provide a surveillance system for a wind park comprising a detection system configured to detect flying birds and issue a detection signal; one or more drones; and a control system configured to command one or more of said drones to be deployed based on the detection of birds flying in the vicinity of the wind park. The invention extends to a wind park comprising a plurality of wind turbines and a system as defined above. The invention also embraces a method of operating a surveillance system in a wind park, comprising scanning a geographical area proximal to a wind park using a surveillance system for the detection of birds; on detecting the presence of birds in the vicinity of the wind park, automatically commanding the deployment of one or more drones to act as a deterrent to the detected birds.

A system and method for driving geese away from an area employs predetermined random illuminations of particular wavelength light directed in a fashion that repels geese while avoiding annoying humans. Embodiments include systems associated with golf course flags and other structures and animal decoys that hide undesired aesthetic appearances of prior art industrial lighting elements. Other embodiments employ adjustable/movable mirror elements used in conjunction with systems powered by solar energy panels positioned below the light source, which can be adjusted in terms of direction, shielding, color, duration, wavelength and pulsation, providing a variety of random patterns so as to avoid habituation by geese.

A system and method for driving geese away from an area employs predetermined random illuminations of particular wavelength light directed in a fashion that repels geese while avoiding annoying humans. Embodiments include systems associated with golf course flags and other structures and animal decoys that hide undesired aesthetic appearances of prior art industrial lighting elements. Other embodiments employ adjustable/movable mirror elements used in conjunction with systems powered by solar energy panels positioned below the light source, which can be adjusted in terms of direction, shielding, color, duration, wavelength and pulsation, providing a variety of random patterns so as to avoid habituation by geese.

Provided is a mobile terminal performing a mosquito repelling function. The mobile terminal with the mosquito repelling function comprises: a frame forming a full length part to minimize the thickness of a mosquito repelling device and ensure sufficient rigidity; a battery provided on the back surface of the frame; a rear cover detachably coupled to the back surface of the frame; and a mosquito repelling device coupled to the inner surface of the rear cover.

Provided is a mobile terminal performing a mosquito repelling function. The mobile terminal with the mosquito repelling function comprises: a frame forming a full length part to minimize the thickness of a mosquito repelling device and ensure sufficient rigidity; a battery provided on the back surface of the frame; a rear cover detachably coupled to the back surface of the frame; and a mosquito repelling device coupled to the inner surface of the rear cover.

Aspects of the present invention determine a presence of insects at a location of a first device that comprises a computer processor, and in response to determining the presence of the insects at the location of the first device, apply a screen overlay that changes colors displayed by a display of the first device.

Aspects of the present invention determine a presence of insects at a location of a first device that comprises a computer processor, and in response to determining the presence of the insects at the location of the first device, apply a screen overlay that changes colors displayed by a display of the first device.

Embodiments of the present invention provide a novel deterrent barrier based on the phenomenon of fluid cavitation. A drive unit comprising a motor and a propeller are configured for inducing cavitation in water. The cavitation takes the form of a rotationally confined vertical column of cavitation bubbles extending from the propeller, and a one-dimensional series of drive units spanning the width of a waterway may provide an effective, environmentally friendly and non-lethal barrier against entry of target fish species.

A device for generating a non-thermal atmospheric pressure plasma is disclosed. In an embodiment a device includes a first piezoelectric transformer configured to ignite a non-thermal atmospheric pressure plasma in a process medium and a control circuit configured to apply an input voltage to the first piezoelectric transformer and to perform a modulation of the input voltage such that the first piezoelectric transformer generates an acoustic signal as a result of the modulation.

A device for generating a non-thermal atmospheric pressure plasma is disclosed. In an embodiment a device includes a first piezoelectric transformer configured to ignite a non-thermal atmospheric pressure plasma in a process medium and a control circuit configured to apply an input voltage to the first piezoelectric transformer and to perform a modulation of the input voltage such that the first piezoelectric transformer generates an acoustic signal as a result of the modulation.