Abstract: Described are systems, methods, and computer-program product embodiments for providing Session Initiation Protocol (SIP) network security. In some embodiments, a SIP processing system includes a SIP device configured to receive a packet stream from a first SIP user agent and facilitate a SIP communication session between the first SIP user agent and a second SIP user agent. The SIP device receives the SIP messages in the SIP communication session and opens one or more socket connections with one or more security systems. The SIP device transmits metadata of the SIP messages to the one or more security systems configured to detect threats. Based on a threat status generated by and received from the one or more security systems, the SIP device controls the SIP communication session.

Abstract: A system and method for generating communications waveforms that can operate in congested frequency spaces and in applications in which the receiver is moving with respect to the transmitter is provided. In one or more examples, each symbol to be encoded and transmitted is converted into a sequence of frequency chirps. The sequence of frequencies used by the sequence of chirps is based on the symbol that is to be encoded. Each chirp can have a center frequency, and the frequency can be swept over the duration of the chirp. In this way each chirp can have a varying frequency over the duration of the chirp, but the phase of the chirp can be continuous throughout the duration of the chirp. The bandwidth and sweep rate of the chirp can be based on the expected maximum velocity of the receiver and the transmitter relative to one another.

Abstract: Disclosed herein are system, method, and computer program product embodiments for detecting spoofing of a navigation device. A plurality of anti-spoofing techniques are provided. The plurality of anti-spoofing techniques detect interference with data provided by one or more navigation devices for a plurality of threat situations. Positioning, timing and frequency characteristics associated with the one or more navigation devices are analyzed in order to identify a threat situation among the plurality of threat situations. Based on the identified threat situation one or more of the anti-spoofing techniques are executed. The one or more anti-spoofing techniques can be executed in parallel in order to provide various anti-spoofing detection techniques at the same time.

Abstract: A method of forming a quantum dot-polymer nanocomposite sensing film for chemical vapor sensing is achieved by first obtaining a mass of a type of polymer having a characteristic of expanding or contracting responsive to exposure to at least one of a group of chemical vapors and obtaining a quantum dot (QD) suspension which comprises CDs having a CdSe/ZnS core-shell ratio. The polymer and solvent are mixed, the QD suspension is dried, and the dried QDs are added to the polymer solution and mixed to form a precursor solution. At least a portion of the precursor solution is deposited and spread onto a substrate and then air-dried to form the quantum dot-polymer nanocomposite sensing film.

Abstract: A method of detecting the presence of a chemical vapor of interest using a quantum dot-polymer nanocomposite sensor array is provided. The method includes forming a plurality of sensors respectively of different nanocomposite films and a plurality of QDs. The plurality of sensors are exposed to a target chemical vapor and impingement by an excitation light source. Fluorescence emission intensity of the sensors is measured for a preselected duration of time and then the sensors are placed into contact with a chemical vapor. The changes in fluorescence emission intensity for all sensors are detected over time and the combined changes in fluorescence are compared to establish a unique combined response to identify the target chemical vapor.

Abstract: A microscopic collection device, method for collecting a microscopic sample from a target surface, and the work stand for holding the microscopic collection device are provided. The microscopic collection device includes a holding element comprising a handle at one end and a collection platform connected to the holding element at a second end. The collection platform includes a collection surface on which the microscopic sample is deposited when the microscopic collection device comes into contact with the target surface. A tape is inserted through a slit and wrapped around the collection platform. The work stand includes a slit capable of holding the microscopic collection device such that the collection platform is perpendicular to the top surface of the work stand. A microscopic sample, collected using the microscopic collection device, is not only collected from the target surface but is also concentrated onto the collection face of the tape.

Abstract: A system and method for providing a likelihood of auditing a tax return is disclosed. A population of potential solutions of transaction sequences and/or audit score sheets is initialized. Each potential solution in the population is evaluated and assigned an objective score. A subset of the population is selected, preferably a subset with an objective score meeting a predefined criteria. The elected subset is varied using Darwinian concepts, and the previous population is replaced with the new, varied population.

Abstract: A method includes mapping a first subset of integers to a plurality of transaction sequences, mapping a second subset of integers to a plurality of audit score sheets and quantitatively analyzing each respective one of the mapped transaction sequences relative to each respective one of the mapped audit score sheets to determine an objective score for each one of the transaction sequences and each one of the audit score sheets. The objective score for each one of the mapped transaction sequences is a function of an estimated tax liability and likelihood of being audited associated with that mapped transaction sequence. The objective score for each one of the mapped audit score sheets is a function of an estimated effectiveness associated with that audit score sheet. The method further includes generating a new population of effective transaction sequences and/or effective auditing policies based on the objective scores.

Abstract: A quantum dot-polymer nanocomposite sensor array for chemical vapor sensing includes plurality of sensors respectively formed by different nanocomposite films. Each nanocomposite film is formed by a plurality of QDs and a polymer solution made from a polymer and a corresponding solvent. The plurality of sensors are disposed on a substrate for impingement by an excitation light source. Fluorescence emission intensity of the sensors is measured for a preselected duration of time and then the sensors are placed into contact with a chemical vapor. The changes in fluorescence emission intensity for all sensors are detected over time and the combined changes in fluorescence are compared to establish a unique combined response for each target chemical vapor. Using this unique combined response from a sensor array, target chemical vapor can be detected, classified, and identified.

Abstract: Disclosed herein are system, method, and computer program product embodiments for adapting to malware activity on a compromised computer system. An embodiment operates by detecting an active adversary operating malware on a compromised system. A stream of data traffic associated with active adversary is intercepted. The stream of data traffic includes a command and control channel of the active adversary. The stream of data traffic is accessed. An emulation of the command and control channel is provided. An analysis of the accessed stream of traffic is executed. A plurality of response mechanisms is provided. The plurality of response mechanisms is based in part on the analysis of the stream of data traffic and a custom policy language tailored for the malware.

Abstract: Disclosed herein are system, method, and computer program product embodiments for adapting to malware activity on a compromised computer system. An embodiment operates by detecting an adversary operating malware on a compromised system. A stream of network communications associated with adversary is intercepted. The stream of network communications includes a command and control channel of the adversary. The stream of network communications is accessed. An emulation of the command and control channel is provided. An analysis of the accessed stream of traffic is executed. A plurality of response mechanisms is provided. The plurality of response mechanisms is based in part on the analysis of the stream of network communications and a custom policy language tailored for the malware.

Abstract: A system for bulk separation of single-walled tubular fullerenes (100) based on chirality is provided wherein an array of longitudinally directed channels (32) are formed on a crystalline substrate (30) to form a separation plate (300). At least one of the separation plate (300) and a solution or suspension of the single-walled tubular fullerenes (100) is displaced relative to the other for exposing at least a portion of the plurality of single-walled tubular fullerenes (100) to the channels (32). Each of the channels (32) exposes portions of the upper surface (38) of the crystalline substrate (30) and the longitudinal direction is selected to be an energetically favored “locking angle” for single-walled tubular fullerenes (100a) of one chiral angle to be adsorbed to the exposed is substrate surface (38). The adsorbed single-walled tubular fullerenes (100a) are subsequently removed from the separation plate (300).

Abstract: Provided are systems and methods for remotely classifying materials based on complex permittivity features. Such a system includes a first electrode, a second electrode, and a computing module. The first electrode is configured to generate an electric field. The second electrode is configured to sense interaction of the electric field with a container and any materials in the container and to provide a signal corresponding thereto. The computing module is configured to (i) convert the signal into one or more electrical parameters, (ii) classify the materials in the container based on the one or more electrical parameters, and (iii) identify at least one of the materials in the container to be contraband based on the classifications. The first and second electrodes may be configured as opposing parallel electrodes, a fringing-field sensor, or a combination thereof.

Abstract: A quantum dot-polymer nanocomposite for optical chemical and biological sensing is formed by stably incorporating functionalized quantum dots into a pH sensitive hydrogel polymer network. At least one monomer of the pH sensitive hydrogel has functional groups selectively chosen to correspond to functionalized groups on the quantum dots to enable conjugation between the hydrogel polymer network and the functionalized quantum dots. The resulting quantum dot-polymer nanocomposite is placed in a solution having a known pH and addition of a chemical composition or biological agent of interest generates a change in pH of that solution. The nanocomposite expands or contracts responsive to the pH change. The pH change is optically detected by measuring the intensity level of fluorescence from the quantum dots when the nanocomposite is subjected to an excitation light source.

Abstract: Described is a system and method for analyzing competing and non-competing hypothesis. Diagnostic strength of evidence in connection with a competing hypothesis analysis is analyzed. Veracity of evidence in connection with a non-competing hypothesis analysis is analyzed.

Abstract: A method for bulk separation of single-walled tubular fullerenes (100) based on chirality is provided wherein an array of longitudinally directed channels (32) are formed on a crystalline substrate (30) to form a separation plate (300). At least one of the separation plate (300) and a solution or suspension of the single-walled tubular fullerenes (100) is displaced relative to the other for so exposing at least a portion of the plurality of single-walled tubular fullerenes (100) to the channels (32). Each of the channels (32) exposes portions of the upper surface (38) of the crystalline substrate (30) and the longitudinal direction is selected to be an energetically favored “locking angle” for single-walled tubular fullerenes (100a) of one chiral angle to be adsorbed to the exposed substrate surface (38). The adsorbed angle-walled tubular fullerenes (100a) are subsequently removed from the separation plate (300).

Abstract: During transmission of a signal, a decoder receives a data symbol sequence and one or more copies of the data symbol sequence. The data symbol sequence and each of the copies have unknown noise, including unknown phase shifts. The unknown phase shifts are estimated such that the data symbol sequence that was transmitted is substantially recovered.

Abstract: Systems, methods, and computer program products for passively attributing anonymous network events to their associated users are provided herein. Embodiments include filtering network events over a pre-determined time interval to generate a filtered event list. In an embodiment, event attribution includes attributing an anonymous network event to a user associated with a nearest-neighbor event relative to the anonymous network event. In another embodiment, event attribution includes attributing an anonymous network event to a user associated with an event in the filtered event list, wherein that user maximizes an event attribution function.

Abstract: A quantum dot-polymer nanocomposite for optical chemical and biological sensing is formed by stably incorporating functionalized quantum dots into a pH sensitive hydrogel polymer network. At least one monomer of the pH sensitive hydrogel has functional groups selectively chosen to correspond to functionalized groups on the quantum dots to enable conjugation between the hydrogel polymer network and the functionalized quantum dots. The resulting quantum dot-polymer nanocomposite is placed in a solution having a known pH and addition of a chemical composition or biological agent of interest generates a change in pH of that solution. The nanocomposite expands or contracts responsive to the pH change. The pH change is optically detected by measuring the intensity level of fluorescence from the quantum dots when the nanocomposite is subjected to an excitation light source.

Abstract: Described are systems and methods, including computer program products for controlling an unmanned vehicle. A user controls one or more unmanned vehicles with a smart phone. The smart phone receives video stream from the unmanned vehicles, and the smart phone displays the controls from the unmanned vehicle over the video. The smart phone and the unmanned vehicle communicate wirelessly.