Abstract: Provided herein are methods and compositions for carbonation of recycled concrete aggregates (RCA) to produce carbonated RCA. In addition, uses of the carbonated RCA, such as in building materials, and building materials containing RCA, are included. Carbonation of RCA may be used alone or may be used in combination with other carbonation processes associated with concrete manufacture, such as carbonation of wet concrete mixes and/or carbonation of concrete wash water.

Abstract: A method for authenticating a transaction includes: receiving, responsive to an occurrence of an event suspected to compromise a first security value associated with a transaction card, personal identification information associated with a user of the transaction card; authenticating, via a transaction device and using the personal identification information, the user as being associated with the transaction card; responsive to authenticating the user, replacing, using the transaction device, the first security value associated with the transaction card with a second security value associated with the transaction card; authenticating the transaction based at least in part on a comparison between a stored security value and the second security value associated with the transaction card; and in response to a successful authentication of the transaction, processing the transaction.

Abstract: The embodiments described herein are directed at techniques for scheduling of activation of dual frequency radar transceivers. A device obtains, using the plurality of first radar transceivers, a first received radar signal. The device generates first radar data based on the first received radar signal to detect at least one radar target within a first detection region and a second detection region. The device obtains, using the second radar transceiver, a second received radar signal. The device generates second radar data based on the second received radar signal to detect the at least one radar target within a third detection region. In response to the generating the first radar data and the second radar data, the device simultaneously processes the first radar data and the second radar data to obtain radar targets information associated with the radar targets.

Abstract: A method for authenticating a transaction includes replacing a first security value of a transaction device with a second security value; receiving, during a first transaction, the second security value; authenticating the first transaction based at least in part on the second security value; determining that a predetermined number of transactions have occurred during which the second verification value was not rewritten since the second security value was replaced; responsive to determining that the predetermined number of transactions have occurred, replacing the second security value on the transaction device with a third security value; receiving, during a second transaction, the third security value; and authenticating the second transaction based at least in part on the third security value.

Abstract: An electronic circuit for an aerosol generator of an aerosol provision device including a driver arrangement arranged in a H-bridge configuration for supplying an alternating current to an aerosol generator having one or more first induction elements and one or more second induction elements; and a switch element arranged to switch the alternating current supplied by the driver arrangement to either the one or more first induction elements or the one or more second induction elements.

Abstract: An aerosol provision device, for generating aerosol from aerosol generating material can include one or more external aerosol generators arranged to cause aerosol to be generated from the aerosol generating material, one or more internal aerosol generators arranged to cause aerosol to be generated from the aerosol generating material, and a controller for controlling the external and internal aerosol generators. The controller may be operable in a first mode of operation to activate the external aerosol generators without activating the internal aerosol generators during a session of use. The controller may also be operable in a second mode of operation to activate the internal aerosol generators without activating the external aerosol generators during a session of use.

Abstract: An aerosol provision device including a main housing having a heating element which projects within the main housing. The device further includes a receptacle arranged around the heating element and arranged to receive an aerosol generating article, the receptacle having one or more external projections. The device also includes a rotatable tube having one or more helical tracks, wherein the one or more projections on the receptacle engage with the one or more helical tracks, and wherein in use the rotatable tube may be rotated in order to translate the receptacle relative to the heating element so as to remove or at least partially remove an aerosol generating article from the heating element.

Abstract: An aerosol provision system including an aerosol provision device having a proximal end and a distal end, wherein the aerosol provision device includes a first alignment feature and a first magnetic retention feature provided on the distal end of the aerosol provision device; and a charging unit including a cavity for receiving the aerosol provision device, wherein the charging cavity includes a base portion, wherein the base portion includes a second alignment feature for engaging with the first alignment feature and wherein the base portion further includes a second magnetic retention feature for engaging with the first magnetic retention feature.

Abstract: An aerosol provision device including a main housing having a tubular element surrounding a heating element. The tubular element includes a first aperture through which a tool can be inserted, in use, in order to clean the heating element and/or to assist in the removal of an aerosol generating article attached to the heating element.

Abstract: A method of operating an aerosol generator of an aerosol provision device including determining a resonant frequency f0 of one or more induction elements; supplying an alternating current to the one or more induction elements over multiple cycles of time, wherein each cycle of time comprises one or more first time periods T1 and one or more second time periods T2; supplying the alternating current to the one or more induction elements at a first frequency f1 during the one or more first time periods T1, wherein 0.9?f1/f0?1.1; and supplying the alternating current to the one or more induction elements at a second different frequency f2 during the one or more second time periods T2, wherein either: (a) f2/f0?0.9; or (b) f2/f0?1.1, and wherein f2>0.

Abstract: Provided herein are methods and compositions for carbonation of recycled concrete aggregates (RCA) to produce carbonated RCA. In addition, uses of the carbonated RCA, such as in building materials, and building materials containing RCA, are included. Carbonation of RCA may be used alone or may be used in combination with other carbonation processes associated with concrete manufacture, such as carbonation of wet concrete mixes and/or carbonation of concrete wash water.

Abstract: A method of manufacturing an aerosol provision device including: providing a first housing having a proximal end and a distal end, providing one or more channels in a longitudinal direction along the device from the distal end of the housing and depositing or printing one or more electrically conductive tracks into the one or more channels.

Abstract: A water heating system includes a first heating chamber arranged in parallel with a second heating chamber; a first temperature sensor positioned to sense a first temperature in the first heating chamber; a second temperature sensor positioned to sense a second temperature in the second heating chamber; and a controller configured to: determine a first temperature value based on a first sensor signal from the first temperature sensor, determine a second temperature value based on a second sensor signal from the second temperature sensor, compute a differential between the first temperature value and the second temperature value, determine that scale buildup is indicated in response to the differential exceeding a first threshold, and initiate a corrective action in response to determining that scale buildup is indicated.

Abstract: An aerosol provision system including an aerosol provision device and a charging unit for charging the aerosol provision device. The charging unit having a cavity for receiving the aerosol provision device and a lid moveable between a first position and a second position. The charging unit further includes comprises: a lid positioning arrangement, operating between the lid and a body of the charging unit, having comprising: (i) a first positioning element and a second positioning element; and (ii) an engagement element arranged to engage the first positioning element when the lid is in the first position so as to hold the lid in the first position, and arranged to engage the second positioning element when the lid is in the second position so as to hold the lid in the second position.

Abstract: An aerosol provision system including an aerosol provision device and a charging unit for charging the aerosol provision device, the charging unit having a cavity for receiving the aerosol provision device. The charging unit further includes comprises a lid moveable between a first position and a second position, wherein: (i) the aerosol provision system further includes comprises a user display and wherein movement of the lid between the first position and the second position activates and/or deactivates the user display; and/or (ii) the aerosol provision system further includes comprises a user interface and wherein movement of the lid between the first position and the second position activates and/or deactivates the user interface.

Abstract: Provided herein are methods and compositions for carbonation of recycled concrete aggregates (RCA) to produce carbonated RCA. In addition, uses of the carbonated RCA, such as in building materials, and building materials containing RCA, are included. Carbonation of RCA may be used alone or may be used in combination with other carbonation processes associated with concrete manufacture, such as carbonation of wet concrete mixes and/or carbonation of concrete wash water.

Abstract: Systems, methods, and devices provide monitoring of entities in automobile environments. Methods include determining, using a processing device, a first plurality of phase modulation parameters for a speaker array based on a relationship between speakers included in the speaker array and a designated target location. Methods further include generating, using the processing device, a plurality of audio signals for the speakers included in the speaker array, each of the plurality of audio signals including a phase adjustment determined based on the first plurality of phase modulation parameters, and transmitting the plurality of audio signals via the speaker array to the designated target location.

Abstract: An aerosol provision device including a housing delimiting a first opening at a first end of the housing through which to receive aerosol generating material and a second opening at a second end of the housing, wherein at least one heater is arranged within the housing and configured to heat the aerosol generating material received within the housing thereby to generate an aerosol, and wherein a hollow member is arranged within the housing and extends at least partially between the second and first openings, the hollow member having an end that faces the second opening and is configured to encourage the formation of liquid droplets.

Abstract: A resistive heating element for an aerosol provision device including a substrate and one or more electrically conductive tracks provided on the substrate, wherein at least one of the one or more electrically conductive tracks includes a portion wherein the width or cross-sectional area of the one or more electrically conductive tracks is reduced in order to create an enhanced heating region, wherein the enhanced heating region is arranged to cause a visual indication to be generated on an aerosol generating article at the end of a session of use.