Abstract: Examples of 3D-printed sensing devices for detecting vascular conditions in an animal body are described. A 3D-printed sensing device may comprise a binding layer to attach the 3D-printed sensing device to a part of the animal body. A sensor layer is extruded atop the binding layer. The sensor layer comprises a piezoresistive transducer to generate an electrical signal based on a pulse detected in the part of the animal body. In an example, the electrical signal is a binary signal having a logical high value at an instant of occurrence of the pulse and is agnostic of a strength of the pulse. An amplification module in the sensor layer may amplify the electrical signal and provide the amplified signal to a transmitter unit of the 3D-printed sensing device to transmit the amplified signal to a monitoring device associated with the 3D-printed sensing device.

Abstract: One example implementation includes an extractor controller to control extraction of blood from a user; a detection fluid manager to mix the blood and a detection fluid to form magnetized test particles, the detection fluid comprising dye coated magnetic particles; a particle flow controller to remove magnetized test particles from the mixed blood and detection fluid; and an allergen detector to detect exposure to an allergen based on a color of the test particles.

Abstract: Seismic based fracking fluid disposal can in an example embodiment include selecting a first disposal site of a plurality of disposal sites to receive fracking fluid from a fracking site; measuring, via a seismic sensor, seismic waves associated with the first disposal site; and assigning at least some of the fracking fluid from the first disposal site to a second disposal site of the plurality of disposal sites based on the measured seismic waves.

Abstract: Example implementations relate to activating an alarm if a living being is present in an enclosed space having an ambient temperature outside a safe temperature range. In example implementations, it may be determined whether a living being has been present in an enclosed space, and an ambient temperature of the enclosed space has been outside a safe temperature range, for a threshold amount of time. An alarm may be activated if the living being has been present in the enclosed space, and the ambient temperature of the enclosed space has been outside the safe temperature range, for the threshold amount of time.

Abstract: Example implementations relate to receiving vibration notifications from vibration sensors. In example implementations, a subset of a plurality of vibration sensors from which vibration notifications are expected may be identified based on a position of a train along a track. The plurality of vibration sensors may be arranged in a predetermined order on the track. Whether vibration notifications have not been received from consecutive, with respect to the predetermined order, vibration sensors in the subset may be determined.

Abstract: Example implementations relate to activating an alarm if a living being is present in an enclosed space having an ambient temperature outside a safe temperature range. In example implementations, it may be determined whether a living being has been present in an enclosed space, and an ambient temperature of the enclosed space has been outside a safe temperature range, for a threshold amount of time. An alarm may be activated if the living being has been present in the enclosed space, and the ambient temperature of the enclosed space has been outside the safe temperature range, for the threshold amount of time.

Abstract: One example implementation includes an extractor controller to control extraction of blood from a user; a detection fluid manager to mix the blood and a detection fluid to form magnetized test particles, the detection fluid comprising dye coated magnetic particles; a particle flow controller to remove magnetized test particles from the mixed blood and detection fluid; and an allergen detector to detect exposure to an allergen based on a color of the test particles.

Abstract: An example radio frequency identification capsule is disclosed herein. An example radio frequency identification capsule includes a substrate layer; a radio frequency identification layer on the substrate layer, the radio frequency identification layer including a radio frequency identification tag formed from nanoparticle ink; and a protective layer surrounding the radio frequency identification layer.

Abstract: Example implementations relate to activating an alarm if a living being is present in an enclosed space having an ambient temperature outside a safe temperature range. In example implementations, it may be determined whether a living being has been present in an enclosed space, and an ambient temperature of the enclosed space has been outside a safe temperature range, for a threshold amount of time. An alarm may be activated if the living being has been present in the enclosed space, and the ambient temperature of the enclosed space has been outside the safe temperature range, for the threshold amount of time.

Abstract: Examples disclosed herein relate to determining a power difference in sensor signals. Examples include a first sensor to transmit a first ultrasonic signal into a pregnant woman and to receive a second ultrasonic signal; and a second sensor to transmit a third ultrasonic signal into the pregnant woman and to receive a fourth ultrasonic signal. A processing resource determines a first power difference of the first sensor according to a difference between respective powers of the first ultrasonic signal and the second ultrasonic signal and is to determine a second power difference of the second sensor according to a difference between respective power of the third ultrasonic signal and the fourth ultrasonic signal. In examples, the processing resource is to determine a relative location of the fetal heart according to a comparison of the first power difference and the second power difference.

Abstract: The present subject matter relates to determining a set of projections for optimizing query execution on a column-based database. In an example implementation, a plurality of historical queries executed on the column-based database is obtained, and the set of projections is determined based on the plurality of historical queries. The set of projections is determined in a manner such that a total cost of the plurality of historical queries over the set of projections is minimum. The total cost is a sum of a cost of each of the plurality of historical queries. The cost of each historical query is computed based on number of columns in a smallest projection from the set of projections which is used for execution of the respective historical query.

Abstract: Example implementations relate to receiving vibration notifications from vibration sensors. In example implementations, a subset of a plurality of vibration sensors from which vibration notifications are expected may be identified based on a position of a train along a track. The plurality of vibration sensors may be arranged in a predetermined order on the track. Whether vibration notifications have not been received from consecutive, with respect to the predetermined order, vibration sensors in the subset may be determined.

Abstract: Seismic based fracking fluid disposal can in an example embodiment include selecting a first disposal site of a plurality of disposal sites to receive fracking fluid from a fracking site; measuring, via a seismic sensor, seismic waves associated with the first disposal site; and assigning at least some of the fracking fluid from the first disposal site to a second disposal site of the plurality of disposal sites based on the measured seismic waves.

Abstract: Examples of 3D-printed sensing devices for detecting vascular conditions in an animal body are described. A 3D-printed sensing device may comprise a binding layer to attach the 3D-printed sensing device to a part of the animal body. A sensor layer is extruded atop the binding layer. The sensor layer comprises a piezoresistive transducer to generate an electrical signal based on a pulse detected in the part of the animal body. In an example, the electrical signal is a binary signal having a logical high value at an instant of occurrence of the pulse and is agnostic of a strength of the pulse. An amplification module in the sensor layer may amplify the electrical signal and provide the amplified signal to a transmitter unit of the 3D-printed sensing device to transmit the amplified signal to a monitoring device associated with the 3D-printed sensing device.

Abstract: An example radio frequency identification capsule is disclosed herein. An example radio frequency identification capsule includes a substrate layer; a radio frequency identification layer on the substrate layer, the radio frequency identification layer including a radio frequency identification tag formed from nanoparticle ink; and a protective layer surrounding the radio frequency identification layer.

Abstract: A system and method for reflowing lead-free solder to interconnect a plurality of electronic components to a substrate is disclosed. The system includes an oven for preheating the substrate and the plurality of electronic components disposed thereon, and a supplemental heat source disposed in the oven for providing additional heat energy to reflow the solder.

Abstract: An apparatus and method for creating a secure program history log for a programmable device including a microprocessor, at least one communications port for communicating with the microprocessor and at least one memory device electrically connected to the microprocessor. The memory device includes a program history log, and the method includes communicating program parameters to the microprocessor, creating a log entry utilizing the microprocessor and the program parameters, and writing the log entry into the program history log utilizing the microprocessor.

Abstract: A method of measuring current in a pulse count positioning system is provided, wherein various motor conditions such as back up due to cogging and/or gear train affects are taken into account in measuring current pulses that are correlated with the position of an electric device such as an automotive accessory. The method generally includes measuring current flow through an electric motor at regular intervals, summing the current flow at a second interval, storing the summed current flow as a current pulse occurs, starting a new sum of the current flow, and comparing sums for a previous two sums after a maximum timeout. Accordingly, the method according to the present invention takes various motor conditions into account for a more accurate measurement of current pulses, which correspond with the position of the electric device.

Abstract: An electronic electricity meter which, in one embodiment, includes a modem board, or unit, coupled to the meter microcomputer and exchanges information between the meter and a central computer is described. Using signals supplied by the meter microcomputer and the central computer, the modem unit microcomputer can determine whether to exchange information between the meter and the central computer and the proper time at which the information should be exchanged. In an exemplary embodiment, the modem unit detects various conditions within the meter and responds by exchanging information with the central computer at a proper, or pre-defined, time. The modem unit has two different basic modes, or states, of operation. These states of operation are sometimes referred to as the call originate mode and the call answer mode. Call originate refers to the mode of the unit when a condition occurs in meter 10 and information is being transmitted to the central computer from the modem unit utilizing a telephone line.

Abstract: The present invention, in one embodiment, is a method for metering energy consumption with an electric meter. The method includes steps of: generating metering quantities for a plurality of phase voltages from a multiphase voltage source, including generating revenue-related data; monitoring voltage changes on at least one of the phase voltages; and performing a predetermined task in response to a voltage change on at least one of the phase voltages while continuing to generate revenue-related data.