Industrial Sonomechanics, LLC

Albert Einstein College of Medicine

New York State Department of Mental Hygiene Office of Mental Health

Alexey S Peshkovsky

Sergei L Peshkovsky

Joseph Helpern

Nikolai I Avdievich

Richard Kennan

Sergel L Peshkovsky

Ultrasonic horns having improved longevity and simplified manufacturing approaches that can be more easily adapted to ultrasonic reactor chambers or batch processing containers. The ultrasonic horn designs increase the uniformity and intensity of acoustic energy radiated into a liquid medium and thus better correspond to the requirements of a particular sonochemical or sonomechanical process. The ultrasonic horns do not require a specific number of cylindrical sections and allow for various lengths and profiles of variable-diameter sections. The ultrasonic horns also reduce stress in the material of the ultrasonic horns and therefore extend longevity.

Ultrasonic horn with a large high-amplitude output surface

A sealed piezoelectric transducer having a single, uniform, electrically insulating, heat-conducting layer of a soft, rubbery material filled with a fine, homogeneously-dispersed powder having high thermal conductivity. The material is placed in contact with the surfaces of the transducer and conducts the heat from the surfaces to an external heat sink. Since the thermally conductive powder is fully encapsulated in the rubbery material, its abrasive properties are neutralized. The softness of the material ensures that the vibration of the transducer does not transmit significant acoustic energy into the material, thereby avoiding the generation of parasitic heat. In addition, the layer fills the entire gap between the transducer and the heat sink, thereby removing any possibility of moisture-related arcing.

Efficient cooling of piezoelectric transducers

An ultrasonic reactor system with an appropriately designed reactor chamber used in conjunction with a compatible ultrasonic Barbell Horn or its derivative that provides a significant efficiency increase and an intensification of sonochemical and sonomechanical processes is disclosed. These enhancements arise from the ability of the reactor chamber to direct all treated liquid media through the highly active ultrasonic cavitation region located near the surface of the horn, as well as from several improvements in the Barbell Horn design that significantly increase its longevity and in its output surface area, thereby increasing the total size of the active cavitation region.

High capacity ultrasonic reactor system

A magnetic resonance imaging ('MRI') system and method of correcting for the motion of a subject during an MRI scan. The motion of a subject in an MRI scan is corrected by acquiring nuclear magnetic resonance ('NMR') spectra of an ordered material attached to a subject, wherein there is a dependence on the NMR spectra of the ordered material's orientation in a magnetic field, and determining an orientation of the subject. Correction information is then supplied to a primary spectrometer channel which is used to execute an MRI scan, and an imaging pulse sequence of the MRI scan is adjusted to correct the subject's orientation.

Apparatus for dynamic angular position tracking

A half-volume quadrature TEM coil high field (&#x3e;3 T) imaging applications. This novel coil produces a sufficiently large homogeneous Bfield region for the use as a volume coil. It provides superior transmission efficiency, resulting in significantly lower power deposition, as well as greater sensitivity and improved patient comfort and accessibility compared with conventional full-volume coils. Additionally this coil compensates the RF penetration artifact that distorts high-field images recorded with linear surface and volume coils. These advantages make it potentially possible to apply the device as an efficient transmit/receive body coil at high fields, where the use of the full-volume coils is complicated by the excessive power deposition and low sensitivity.

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New York, NY, United States of America

Alexey S Peshkovsky