Abstract: A co-extrusion die is configured to produce a multilayer extrusion comprising component layers of an electrochemical cell. The die comprises a plurality of inlet ports configured to receive a plurality of pressurized fluids comprising at least a first metallic ink, a second metallic ink, and a polymeric ink. A plurality of channels are configured to separately transport and shape the plurality of fluids from the plurality of inlet ports to a merge section, such that the plurality of fluids flow together in the merge section to form the multilayer extrusion comprising a polymeric membrane layer disposed between and in contact with a first metallic layer and a second metallic layer. A thickness of each layer within the merge section is controllable by adjustment of a pressure of the plurality of pressurized fluids. An outlet port is configured to output the multilayer extrusion onto a substrate.

Abstract: A support structure for placement on or about a subject's head supports an ultrasound transducer array configured to deliver transcranial stimulation to a specified region or regions of the subject's brain using pre-recorded neurostimulation data. The pre-recorded neurostimulation data comprises patterns of stimulation of the specified region or regions of the subject's brain or other person's brain developed to recreate a response by one or more of a sensing organ or sensing organs, a vestibular system, and a memory of the subject. A magnetic sensor array is mounted to the support structure and configured to transcranially sense local magnetic fields emanating from the specified region or regions of the subject's brain caused by delivery of the transcranial stimulation and produce contemporaneous neurostimulation data developed using the transcranially sensed local magnetic fields. Electronic circuitry comprising a controller is configured to control operation of the respective arrays.

Abstract: A method of printing on fabric includes: (a) loading a thermoplastic material into a nozzle of an extruder, such as an extruder of a three dimensional (3D) printer; (b) positioning a substrate that includes fabric in a print area proximate to the nozzle; (c) heating the thermoplastic material in the nozzle to a temperature that is equal to or greater than a melting point temperature of the fabric; and (d) extruding the heated thermoplastic material from the nozzle as a filament onto the fabric to yield a printed pattern on the fabric.

Abstract: The techniques disclosed herein help designers find interesting designs for small electrical, mechanical, and/or hydraulic mechanisms by exhaustively enumerating the design space given a library of components and a maximum number of components allowed per design. Some embodiments work by creating a design space grammar of designs, solving the equations associated with parts of the grammar, and putting the solutions into equivalence classes. This dramatically reduces the number of designs that have to be evaluated to see if they satisfy the design criteria. The result is often a small number of base designs that show the range of possible solutions to the design problem.

Abstract: An image based correction system compensates for the image quality artifacts induced by thermal ghosting on evolving imaging member surfaces. With thermal ghosting directly tied to previous image content, a feed forward system determines thermal ghosting artifacts based on images previously rendered and generates an open loop gray-level correction to a current image that mitigates undesirable ghosting. For example, the correction system compensates for the thermal ghosting by making the current image “lighter” in areas that will be imaged onto warmer blanket regions, thereby cancelling out TRC differences between different temperature regions. A temperature sensor is used to measure the temperature of the imaging blanket due to the stresses induced by the image. This data is used to learn the parameters of the temperature model periodically during operation, and used in subsequent corrections to mitigate thermal ghosting in spite of changes in blanket properties over use and time.

Abstract: A method of forming a three-dimensional printed part is disclosed which includes positioning a printing system at a first standoff position under a first condition. The method also includes positioning the printing system at a second standoff position under a second condition. The method of forming a three-dimensional printed part may include where one of the first condition and second condition may include a printing material drop being ejecting onto a surface of a substrate. The printing material drop may include a metal, a metallic alloy, or a combination thereof. A printing system and a three-dimensional printed part employed the method is also disclosed.

Abstract: A metal object manufacturing apparatus is configured to eject melted metal drops to form a continuous metal line over a line of spatially separated pillars in a single pass. The ejection frequency for forming the continuous metal line is different than the frequency used to form the pillars. In one embodiment, the ejection frequency for forming the pillars is about 100 Hz and the frequency used to form the continuous metal line over the line of spatially separated pillars is about 300 Hz with a drop spacing of about 0.2 mm. Continuous metal lines are formed to extend the continuous metal lines over the pillars laterally to fill the gaps between the continuous metal lines over the pillars. These continuous metal lines that fill the gaps are formed while operating the ejection head at the 300 Hz frequency with a drop spacing of 0.28 mm.

Abstract: System and method that allow utilize machine learning algorithms to move a micro-object to a desired position are described. A sensor such as a high speed camera or capacitive sensing, tracks the locations of the objects. A dynamic potential energy landscape for manipulating objects is generated by controlling each of the electrodes in an array of electrodes. One or more computing devices are used to: estimate an initial position of a micro-object using the sensor; generate a continuous representation of a dynamic model for movement of the micro-object due to electrode potentials generated by at least some of the electrodes and use automatic differentiation and Gauss quadrature rules on the dynamic model to derive optimum potentials to be generated by the electrodes to move the micro-object to the desired position; and map the calculated optimized electrode potentials to the array to activate the electrodes.

Abstract: A downloaded app controls a device to recognize whether a connected card reader is an unsupported card reader or whether an unsupported card is supplied to the connected card reader. The app automatically generates support for the unsupported card reader or unsupported card by reading the identifying information from the unsupported card reader or unsupported card, modifying an existing driver support file by adding the identifying information to the existing driver support file to create a modified driver support file, and testing the unsupported card reader or unsupported card using the modified driver support file. If the tests are successful, the app then supplies the modified driver support file to other devices separate from the printer.

Abstract: A printing system comprises an ink deposition assembly and a media transport device. The ink deposition assembly comprises printheads to deposit a print fluid, such as ink, on print media, such as paper. The media transport device holds the print media against a movable support surface, such as a belt, by vacuum suction platen and transports the print media though a deposition region. The vacuum suction is communicated to the movable through platen holes and platen channels in a vacuum platen. At least some of the platen channels have a high impedance region that has a reduced open cross-sectional area as compared to another region of the platen channel.

Abstract: A method is disclosed. For example, the method executed by a processor of a shared device includes receiving an identification of a user, connecting to a remote server that stores authentication modules and applications, requesting an authentication module and an application stored on the remote server that is associated with the identification of the user, storing the authentication module and the application temporarily on a non-resident memory of the shared device, and executing the application in response to authentication of the user based on log-in information that was received via the authentication module.

Abstract: An inkjet printer detects vibrations within the printer and compensates for the detected vibrations by adjusting a gap between the printheads and the media transport. Additionally, the inkjet printer detects media sheet heights that may cause damage as they pass through the print zone of the printer and adjusts the gap to enable the media sheets to pass through the print zone without contacting the printheads. A method of operating an inkjet printer so configured is also disclosed.

Abstract: An embodiment of the present disclosure is directed to a method of additive manufacturing. The method comprises: i) forming a first layer, the first layer comprising at least one material chosen from an article material, a support structure material and a fracturable material; ii) forming an additional layer on the first layer, the additional layer comprising at least one material chosen from the article material, the support structure material and the fracturable material; and iii) repeating ii) one or more times to form a three-dimensional build comprising an article and at least one support structure attached to the article at an interface, the interface comprising the fracturable material formed during one or more of i), ii) or iii), the fracturable material being formed by exposing a print material with a gas reactant. A three-dimensional build is also disclosed.

Abstract: Disclosed are methods and systems of controlling the placement of micro-objects on the surface of a micro-assembler. Control patterns may be used to cause phototransistors or electrodes of the micro-assembler to generate dielectrophoretic (DEP) and electrophoretic (EP) forces which may be used to manipulate, move, position, or orient one or more micro-objects on the surface of the micro-assembler. A set of micro-object may be analyzed. Geometric properties of the set of micro-objects may be identified. The set of micro-objects may be divided into multiple sub-sets of micro-objects based on the one or more geometric properties and one or more control patterns.

Abstract: A method operates a three-dimensional (3D) metal object manufacturing system to compensate for displacement errors that occur during object formation. In the method, image data of a metal object being formed by the 3D metal object manufacturing system is generated prior to completion of the metal object and compared to original 3D object design data of the object to identify one or more displacement errors. For the displacement errors outside a predetermined difference range, the method modifies machine-ready instructions for forming metal object layers not yet formed to compensate for the identified displacement errors and operates the 3D metal object manufacturing system using the modified machine-ready instructions.

Abstract: An aqueous inkjet printer also ejects drops of UV material on an aqueous ink image and exposes the aqueous ink image and the UV material to UV radiation before passing the aqueous ink image and UV material through a thermal dryer. The exposure to UV radiation pins the UV material to the aqueous ink image and underlying substrate and the thermal dryer fixes the aqueous ink image to the substrate while releasing free radicals from the UV material. Thus, the printer produces textured prints that do not have free radicals that can irritate skin or produce noxious odors.

Abstract: A color inkjet printer includes an electrode that emits an electric field into a gap between a printhead and a media transport that carries media past the printhead. Image data generated by an optical sensor after an ink image is printed on the media is analyzed to measure at least one image quality metric. When the measured image quality metric is outside of a tolerance range, the voltage of a voltage source electrically connected to the electrode is adjusted to improve the wetting of the media type with the ink ejected by the printhead.

Abstract: A nonlimiting example method of forming highly spherical carbon nanomaterial-graft-polyolefin (CNM-g-polyolefin) particles may comprising: mixing a mixture comprising: (a) a CNM-g-polyolefin comprising a polyolefin grafted to a carbon nanomaterial, (b) a carrier fluid that is immiscible with the polyolefin of the CNM-g-polyolefin, optionally (c) a thermoplastic polymer not grafted to a CNM, and optionally (d) an emulsion stabilizer at a temperature greater than a melting point or softening temperature of the polyolefin of the CNM-g-polyolefin and the thermoplastic polymer, when included, and at a shear rate sufficiently high to disperse the CNM-g-polyolefin in the carrier fluid; cooling the mixture to below the melting point or softening temperature to form the CNM-g-polyolefin particles; and separating the CNM-g-polyolefin particles from the carrier fluid.