Abstract: A thermoacoustic refrigeration assembly includes a resonating tube having a first end and a second end; a first mechanical oscillator at the first end; a second mechanical oscillator at the second end; and a thermoacoustic stack sandwich disposed along a length of the resonating tube through which gas travels. The stack sandwich includes a first outboard heat exchanger on a first side of the stack sandwich facing the first mechanical oscillator, a second outboard heat exchanger on a second side of the stack sandwich facing the second mechanical oscillator, and a center heat exchanger disposed between the first outboard heat exchanger and the second outboard heat exchanger.

Abstract: Systems and methods are disclosed and an example system includes a digital image receiver for receiving a digital image, and an automatic obscuration processor coupled to the image receiver and configured to determine whether the digital image includes a region that classifies as an image of a category of object and, upon a positive determination, to obscure the region and output a corresponding obscured-region digital image.

Abstract: Described herein are examples of evaluating electromagnetic energy reflection data of security scans. In embodiments, a method to evaluate electromagnetic energy reflection data determines whether electronic information of a security scan contains an anomaly, and identifies an anomaly location in the electronic information corresponding to the anomaly. The method determines a subset of the electronic information corresponding to the anomaly location, determines anomaly attributes using the subset of the electronic information, and evaluates the anomaly attributes using a database of reference items by comparing anomaly attributes to respective reference characteristics of reference items or identity information. When a comparison meets the respective match criterion for the given reference item, the method assigns to the anomaly the respective identifier as an anomaly identifier.

Abstract: A substrate is printed with front side and back side markings. The front side when viewed with reflected light includes: a first marking printed with a first gradient of two colors; a second marking printed with a second gradient of two colors; a first symbol printed with a third gradient of two colors; a second symbol printed with a fourth gradient of two colors; a third symbol printed with a fifth gradient of two colors; and a fourth symbol printed with a sixth gradient of two colors. The back side when viewed with reflected light includes: a third marking printed with the fourth gradient; a fourth marking printed with the third gradient; a fifth symbol printed with the second gradient; a sixth symbol printed with the first gradient; a seventh symbol printed with the sixth gradient; and an eighth symbol printed with the fifth gradient.

Abstract: Examples are directed towards apparatuses, systems, and methods. For example, an apparatus includes a weight including a first side and a second side. The first side of the weight forms a receiving hole in the first side. A pin includes a first end and a second end. The second end of the pin is inserted into the receiving hole of the weight. The pin includes a reduced portion. A pin detonator is coupled to the reduced portion of the pin to sever the pin when detonated.

Abstract: An explosive sheet simulant that uses an ethylene vinyl acetate polymer combined with boron carbide or iron oxide for X-ray attenuating properties, and components of the mixture selected for predetermined flexural modulus combined with particle density, effective atomic number, X-ray transmission properties, or millimeter wave properties.

Abstract: A media holder can be used for preparing samples. The media holder can comprise a base, a pair of walls extending upwardly from the base, and a plurality of transverse members positioned on and coupled to a respective upper end of each of the walls. Each of the transverse members can define a receiving slot for receiving at least a portion of a media therein.

Abstract: A portable cardiopulmonary resuscitation (CPR) system includes a first module hub housing, an inflation actuated soft gripper configured to receive an inflation gas, and in response, to change form to a deployed grip state that accommodates and grips a human torso. Features of the portable CPR system include modularity for in-the-field reconfigurability, in which a second module hub housing attaches to the first module hub housing, carrying a CPR pressure applicator configured to receive an actuator power and a CPR control signal causing, concurrent with the deployed grip state, cyclic extension and retraction of the CPR pressure applicator along an axis aligned with a sternum of the human torso.

Abstract: Examples are directed toward systems and methods relating to collecting and analyzing samples. For example, a system includes a cold trap that directly collects a sample. The cold trap operates to serve as a collection filter while the system draws in a flow across the cold trap. A thermal heater, coupled to the cold trap, flash heats the cold trap to produce a released sample from the cold trap at a release concentration. An analyzer entrains the released sample at the release concentration into a sampling flow of the analyzer for analysis.

Abstract: Examples are directed toward collecting, by a LC-MS device, a full scan of ion chromatograms of a sample. The LC-MS device determines observed ions contained in the full scan, based on mass-to-charge ratios (m/z), and determines, for a formation curve of an observed ion, a formation point at which fifty percent of the observed ion has formed. The LC-MS device determines a fragmentation curve of a precursor ion, based on a fragmentation point of the fragmentation curve equivalent to the formation point at which fifty percent of the precursor ion has fragmented, and identifies the precursor ion by referencing the LC-MS library to confirm that the observed ion is a product of the fragmentation of the precursor ion. The LC-MS device indicates a goodness of fit between the fragmentation curve, as observed, and a model fragmentation curve, as stored in the LC-MS library.

Abstract: Examples are directed toward a system and method relating to mobile screening. For example, a mobile screening vehicle includes a passenger scanner that performs security scanning of a passenger on the mobile screening vehicle. The mobile screening vehicle also includes a verification system that verifies, consistent with the security scanning of passengers, that passengers on the mobile screening vehicle are approved to proceed to a secure area of a travel venue.

Abstract: A provider system is connected to readers disposed at distances from the provider system. A secure local connection is established between the client device and the provider system via one of the readers. Before the client reaches an access touchpoint, the provider system receives from the client device a request for client access, the provider system sends to the client device a request for identification information of the client, and the client device sends client information associated with a first mobile identification credential (MIC) which the client device received from an authorizing party system (APS), the client having consented to release the client information to the provider system, and the client information having been verified. The provider system uses the verified client information associated with the first MIC to verify or not verify the identity of the client before granting or denying the request to the client.

Abstract: A provider system is connected to one or more readers corresponding to one or more access points. A secure local connection is established between the user device and the provider system via one reader. The provider system receives from the user device a request for user access via one access point corresponding to the one reader, the provider system sends to the user device a request for identification information of the user, and the user device sends user information associated with a first mobile identification credential (MIC) which the user device received from an authorizing party system (APS), the user having consented to release the user information to the provider system, and the user information having been verified. The provider system uses the verified user information associated with the first MIC to verify or not verify the identity of the user before granting or denying the request to the user.

Abstract: In an example, a method of detecting cyanide exposure of an individual comprises measuring a thiocyanate level of the individual, and comparing the measured thiocyanate level to a preset thiocyanate threshold to determine whether the measured thiocyanate level is above the preset thiocyanate threshold indicating a level of cyanide poisoning requiring immediate medical assessment.

Abstract: In an example, a thermal imaging test article comprises a block configured to be attached to a blackbody on a back side of the block, the block having a variable thickness to represent facial features of a human face, the block including a cutout to allow a thermal imaging device to see the blackbody behind the block through the cutout, and one or more heaters thermally coupled to the block to produce heat to heat the block. The variable thickness of the block and the heat produced by the one or more heaters are selected to simulate thermally the human face on a front side of the block.

Abstract: In an example, a subject using a user mobile-identification-credential device (UMD) requests vetting by a vetting system, which receives verified subject information associated with a level-n mobile identification credential (MIC-n) that UMD received from a level-n authorizing party system (APS-n). MIC-n is linked to lower level MIC-0 to MIC-(n?1). The vetting system, as level-n relying party system (RPS-n), uses the verified subject information associated with the linked MIC-0 to MIC-n to verify or not verify the identity of the subject, develops an identity profile of the subject, and determines a vetting result of the subject by calculating a composite trust score based on MIC trust values for the multiple levels of MIC. MIC-i (i=1 to n) is linked to MIC-(i?1) which UMD received from APS-(i?1), and APS-i is RPS-(i?1) which verified the identity of the subject using verified subject information associated with MIC-(i?1), such that MIC-0 to MIC-n are linked.

Abstract: A provider system is connected to readers disposed at distances from the provider system. A secure local connection is established between the client device and the provider system via one of the readers. Before the client reaches an access touchpoint, the provider system receives from the client device a request for client access, the provider system sends to the client device a request for identification information of the client, and the client device sends client information associated with a first mobile identification credential (MIC) which the client device received from an authorizing party system (APS), the client having consented to release the client information to the provider system, and the client information having been verified. The provider system performs a liveness check of the client using live-captured biometric information at the access touchpoint, determines whether the liveness check is valid, and grants the request if the liveness check is valid.

Abstract: Various embodiments of the present invention are directed towards a system and method relating to depositing vapor in a sample. For example, a device includes a vapor source chamber configured to contain a vapor source material to generate vapor. An activation chamber is configured to contain a sample. The activation chamber is in fluid communication with the vapor source chamber to receive the vapor. A permeable separator divides the vapor source chamber and the activation chamber, and isolates the sample in the activation chamber while allowing vapor to pass between the vapor source chamber and the activation chamber. The device is sealable and configured to apply vacuum to the vapor and sample, to cause deposition of the vapor into the pumice stone samples.

Abstract: Various embodiments of the present invention are directed toward systems and methods relating to security screening. For example, a screening system includes a chamber configured to accommodate a user to be screened, and a chamber scanner. The chamber scanner is configured to scan the user to identify whether the user is carrying an undivested item that needs to be divested. The chamber is configured to release the user to proceed from the chamber to a secure area, upon confirmation that no undivested items are to be divested.

Abstract: An apparatus verifies hosted information associated with a user. The apparatus establishes, by the online host serving as a relying party system (RPS), a secure connection between the RPS and a user mobile-identification-credential device (UMD). The RPS sends a mobile identification credential (MIC) user information request to the UMD, via the secure connection, seeking release of MIC user information (official information). The RPS obtains from authorizing party system (APS) verification of the MIC user information received in response to the MIC user information request. The RPS stores the MIC user information as hosted information pertaining to the user. The RPS designates the hosted information as base truth information representing the user.