A fluid device includes: a flow path through which a fluid flows; a pressure chamber spaced apart from the flow path in a first direction (Y direction) orthogonal to a flowing direction of the fluid in the flow path; a communication path that is formed along the Y direction and that communicates the flow path with the pressure chamber; and an ultrasonic wave transmitter configured to transmit ultrasonic waves to the fluid in the pressure chamber to generate a standing wave along the Y direction in the flow path.

Provided is an auditory sensitivity adjustment device suitable to enhance concentration and attentiveness in any direction. An auditory sensitivity adjustment device 100 includes grab parts 32a and 32b for holding a pinna 50, springs 22 for applying to the grab parts 32a and 32b a force for pulling, in an extending direction, the pinna 50 held by the grab parts 32a and 32b, and a base 38 for rotating the pinna 50 held by the grab parts 32a and 32b so as to twist the pinna 50.

Provided is an auditory sensitivity adjustment device suitable to enhance concentration and attentiveness in any direction. An auditory sensitivity adjustment device 100 includes grab parts 32a and 32b for holding a pinna 50, springs 22 for applying to the grab parts 32a and 32b a force for pulling, in an extending direction, the pinna 50 held by the grab parts 32a and 32b, and a base 38 for rotating the pinna 50 held by the grab parts 32a and 32b so as to twist the pinna 50.

Methods, systems, and devices for disrupting phenomena are disclosed. An example device can comprise a transducer configured to receive a signal and output a longitudinal wave based on the signal. The example device can comprise a wave enhancer coupled to the transducer and configured to direct the longitudinal wave into a form having lower attenuation in a medium than the longitudinal wave as output from the transducer.

Methods, systems, and devices for disrupting phenomena are disclosed. An example device can comprise a transducer configured to receive a signal and output a longitudinal wave based on the signal. The example device can comprise a wave enhancer coupled to the transducer and configured to direct the longitudinal wave into a form having lower attenuation in a medium than the longitudinal wave as output from the transducer.

A loudspeaker apparatus according to an embodiment of the present technology includes a loudspeaker and a structure. The loudspeaker outputs sounds. The structure is configured with respect to an object that is disposed on a sound output side of the loudspeaker and forms, between the object and the loudspeaker, a gap space communicating with an external space, and includes a connecting portion and one or more plate-like members. The connecting portion is connected to the loudspeaker. The one or more plate-like members have a plate shape, are disposed in the gap space, extend toward an opening portion of the gap space, and guide sounds output from the loudspeaker toward the external space, the opening portion being located on a side communicating with the external space.

Embodiments for sound and elastic-wave systems with fermionic quantum-like behavior and in particular to an approach for the phase-based encoding of information are disclosed.

Embodiments for sound and elastic-wave systems with fermionic quantum-like behavior and in particular to an approach for the phase-based encoding of information are disclosed.

Disclosed herein are systems and methods of generating traumatic brain injury. More specifically, the present disclosure relates to acoustic systems and methods for inflicting traumatic brain injury and developing an animal model of traumatic brain injury.

Disclosed herein are systems and methods of generating traumatic brain injury. More specifically, the present disclosure relates to acoustic systems and methods for inflicting traumatic brain injury and developing an animal model of traumatic brain injury.