Abstract: A two-photon absorbing (TPA) compound is provided along with a method of making same. The TPA compound has a general structural formula: where R1 and R2 are independently selected from the group consisting of linear or branched alkyl chains having a general formula CnH2n+1, n ranges from about 6 to about 20, and ethoxylated alkyls having a general formula R3(OCH2CH2)mOCH2CH2—, where R3 is a C1 to C4 alkyl group, and where m ranges from 0 to about 3; and where Y is selected from the group consisting of H, OH, and alkoxyl groups.

Abstract: A sensor device to detect an audio wave and determine whether the audio wave is a gunshot is provided. The sensor device may include microphone, analog-to-digital converter (ADC), microcontroller, and switch. The ADC may convert audio waves received from microphone into a digital signal. The microcontroller connected to the ADC may compare the digital signal of the audio waves with predetermined audio wave to determine whether the audio waves meet audio threshold parameters. The switch operatively connected to the microcontroller may transmit a trip signal to a predetermined emergency management and response system upon the microcontroller determining that the audio waves meet the audio threshold parameters. A gunshot detection system including the sensor device and a method of detecting a gunshot are also provided.

Abstract: A method and apparatus are provided for secure multiparty computation. A set of first parties is selected from a plurality of first parties for computation. Inputs for computation associated with each party in the set of first parties are divided into shares to be sent to other parties in the set of first parties. The computation on the shares is performed by the set of first parties using multiparty computation functions. In response to a trigger event, shares of the set of first parties are transferred to a set of second parties selected from a plurality of second parties. The computation is completed by the set of second parties using the transferred shares. Finally, the transferred shares are recombined to reveal an output of the computation.