Abstract: A fluid hammer/siren can operate in fast valve mode with no leakage flow. A stream reactor and process for chemical reaction acceleration provides a flow of liquid or gas forming jets, streams, vortices, or walls of cavities/bubbles that collide with each other or with other liquid, solid, or gaseous interfaces with energies (defined as the sum of molecular kinetic plus thermal energy) in excess of a chemical reaction activation energy. Wastewater treatment methods accelerate suspended particles to high velocity in a fluid flow and then decelerate rapidly by stopping the flow for accelerated inertial-force driven separation.

Abstract: An apparatus for treating solid tumors having at least one hollow needle having at least one perforation, at least one ground electrode, a pump for delivering a chemotherapeutic agent through the perforation in the hollow needle, one or more power supplies connected to the hollow needle and the ground electrode capable of delivering a pulse of alternating current between the hollow needle and the ground electrode of at least 1000 volts and no more than 1 millisecond duration, a direct current between the hollow needle and the ground electrode between about 1 mA and 100 mA, and a second alternating current having a frequency range between about 1 MHz and 1000 MHz.

Abstract: An apparatus for treating solid tumors having at least one hollow needle having at least one perforation, at least one ground electrode, a pump for delivering a chemotherapeutic agent through the perforation in the hollow needle, one or more power supplies connected to the hollow needle and the ground electrode capable of delivering a pulse of alternating current between the hollow needle and the ground electrode of at least 1000 volts and no more than 1 millisecond duration, a direct current between the hollow needle and the ground electrode between about 1 mA and 100 mA, and a second alternating current having a frequency range between about 1 MHz and 1000 MHz.

Abstract: An apparatus for breaking molecular bonds of a liquid may include a first arrangement configured to create macroscopic flow of a liquid such that a molecule of the liquid has a velocity corresponding to a bond disassociation energy of the molecule. The apparatus may also include a second arrangement configured to collide the macroscopic flow of liquid with an obstacle. The collision results in molecular collisions having an energy that exceeds the bond disassociation energy of the molecule.

Abstract: This invention comprises a method of biometric authorization for making secure financial transactions via bank card (magnetic or smart). All or portion of the personal and financial information on the said bank card is encrypted and is not available without a decoding key that is calculated using the card owner's biometric data. To decode the said information and gain access to the financial data the card's owner needs to prove his/hers identify by providing the required biometric data (e.g. place finger on fingerprint scanner). The captured fingerprint is then converted into a key that is used to decode said encrypted information. Incorrect fingerprint will produce an invalid key that will not succeed at decoding of the encrypted information. The decoding of said information may take place locally at the merchant's point of sale device or remotely at the card issuer's server.

Abstract: A method and an apparatus for generating ultrasonic pulses of a specified waveform shape w(t) using an ultrasonic transducer (2) includes a power amplifier (6), a memory (9) for storing a signal for excitation of the ultrasonic transducer (2) and a control logic (4). The stored excitation signal is supplied to the transducer (2) via a digital-to-analog converter (5). Repeated adjustment of the stored excitation signal can be effected by supplying, via an analog-to-digital converter (8), the echo pulse signals from the ultrasonic transducer (2) or the output voltage of the power amplifier (6) to the control logic (4) for analysis. The stored excitation signal is substantially an optimal lag filter fL(t) proper to the transducer and the desired output waveform w(t).