Abstract: A nozzle for additive manufacturing having a body having a thermally conductive material, a front side opposite a back side, a first side opposite a second side, the first side and the second side connected to and between the front side and the back side. The nozzle further has a top end opposite an extrusion end, and the body tapers at the extrusion end to a nozzle opening. A first conduit extends through the body from an opening in the top end to the nozzle opening in the extrusion end. A heater conduit, adjacent to the first conduit, extends from a heater opening in the top end and into the body towards the extrusion end and a sensor conduit, adjacent to the first conduit, extends from a sensor opening in the top end and into body towards the extrusion end.

Abstract: A method and apparatus for balancing terminals of an HVAC system uses an air flow measuring device by inputting into a computer processing portion of the air flow measuring device predetermined target flows for each terminal; acquiring via the air flow measuring device initially measured air flows through each of the terminals, the initially measured air flows being provided to the computer processing portion; and adjusting the terminals in the HVAC system to flow set points according to instructions from the computer processing portion, the computer processing portion being programmed to calculate the flow set point for each terminal given current HVAC system load conditions, that will result in all terminals being set to target flow after all terminals have been adjusted as instructed.

Abstract: Apparatus and method to authenticate 3D printer consumables are described herein. An example 3D printer includes a consumable used by the three-dimensional printer to print a three-dimensional object, the consumable containing embedded ceramic particles, the ceramic particles having luminescent properties such that they emit light having a first wavelength when they are illuminated by light having a second wavelength, and a detector to detect the presence of the ceramic particles in the consumable.

Abstract: A method and apparatus for balancing terminals of an HVAC system uses an air flow measuring device by inputting into a computer processing portion of the air flow measuring device predetermined target flows for each terminal; acquiring via the air flow measuring device initially measured air flows through each of the terminals, the initially measured air flows being provided to the computer processing portion; and adjusting the terminals in the HVAC system to flow set points according to instructions from the computer processing portion, the computer processing portion being programmed to calculate the flow set point for each terminal given current HVAC system load conditions, that will result in all terminals being set to target flow after all terminals have been adjusted as instructed.

Abstract: A multi-layer optical barcode with security features is described herein. An example method includes illuminating a first phosphor layer on a substrate with light having a first wavelength, wherein the first phosphor layer has luminescent properties such that when it is illuminated by light having the first wavelength, it emits light having a second wavelength, the first phosphor layer is divided into a first two-dimensional grid of cells arranged in a first spatial pattern, wherein each cell of the first phosphor layer corresponds to one bit of an identification code, a first portion of the first phosphor layer is removed from a first number of cells of the first two-dimensional grid of cells to expose the substrate for the first number of cells, capturing a first image of the light emitted by the first phosphor layer having the second wavelength, determining whether the first phosphor layer is authentic based on the first image, and determining the identification code based on the first image.

Abstract: A multi-layer optical barcode with security features is described herein. An example method includes illuminating a first phosphor layer on a substrate with light having a first wavelength, wherein the first phosphor layer has luminescent properties such that when it is illuminated by light having the first wavelength, it emits light having a second wavelength, the first phosphor layer is divided into a first two-dimensional grid of cells arranged in a first spatial pattern, wherein each cell of the first phosphor layer corresponds to one bit of an identification code, a first portion of the first phosphor layer is removed from a first number of cells of the first two-dimensional grid of cells to expose the substrate for the first number of cells, capturing a first image of the light emitted by the first phosphor layer having the second wavelength, determining whether the first phosphor layer is authentic based on the first image, and determining the identification code based on the first image.

Abstract: When the intensity and/or emotion of audience members of a presentation is high or low, the audience members typically use social media to post indications of their excitement or disappointment. However, the raw, natural, emotional energy is dissipated during or shortly after the post without ever being efficiently monetized. This constitutes a lost opportunity for the event and/or venue owner or event presenter. However, components can determine characteristics associated with an audience's interactions during an event. The characteristics can be leveraged to harness the natural emotion and interactivity associated with the audiences for use in engaging the audience in commerce and/or improving the audience's overall experience.