Abstract: A controller for a fulfilment service operation is described in which the controller, before initiating fulfilment of the job, operates to determine if an authorised user is present at a fulfilment service device and to determine if the user intends to remain attendant at the fulfilment service device for the duration of fulfilment of the job. If the user moves away from the fulfilment service device, the controller operates to pause the job. If the user remains away from the fulfilment service device for a period of time, the controller operates to cancel the job.

Abstract: In one example in accordance with the present disclosure, a computing device is described. The computing device includes an encryption device to encrypt, using an encryption key, a document to be rendered. A generating device generates multiple shares of a decryption key using a secret-sharing scheme. A threshold number of the multiple shares allows decryption of the document. A transmit device transmits different shares of the multiple shares to different devices. The document is rendered when the threshold number of multiple shares are rejoined at a rendering device.

Abstract: Example implementations relate to dynamic wireless network selection. In some examples, a computing device may comprise a processing resource and a memory resource storing machine-readable instructions to determine a computing device is executing a number of applications, classify the number of applications, prioritize the number of applications based on the classification of the number of applications, determine at least one test from a plurality of tests to send to a network based on the prioritization of the applications, perform the at least one test from the plurality of tests, and determine a network adapter of the network to be used by the device based on the at least one test performed.

Abstract: An example electronic device includes an outer housing, a shoulder connected to the outer housing, and a mounting assembly moveably coupled to the outer housing to mount a peripheral module. The mounting assembly has a rotatable arm biased to a first angular position. The rotatable arm is to remain in the first angular position when a first peripheral module is mounted, whereby the mounting assembly is moveable to extend the first peripheral module to a first clearance distance. The rotatable arm is rotatable to a second angular position in response to mounting a second peripheral module, whereby the mounting assembly is moveable to engage the rotatable arm against the first shoulder and to extend the second peripheral module to a second clearance distance that is less than the first distance.

Abstract: A model controller includes a trackball having a spherical surface with one of latitudinal or longitudinal data tracks formed thereon. The model controller includes a base unit including a first image sensor adjacent to the trackball to capture images of the data tracks, wherein the captured images of the data tracks include orientation information to determine an absolute orientation of the trackball.

Abstract: In an example, a method includes receiving, at a processor, object model data representing at least a portion of an object to be generated by an additive manufacturing apparatus by fusing build material. Using a processor and from the object model data, a property diffusion model for the object in object generation may be determined. Using a processor and based on the property diffusion model, a manufacturing boundary object shell around the object and encompassing an external volume may be determined. The shell may have a variable thickness determined so as to include build material for which, in generation of the object, the property modelled in the property diffusion model has a value which is predicted to conform to a predetermined parameter.

Abstract: In an example, an apparatus is described that includes a non-resistive heat source, a thermally conductive face, and a temperature detector. The thermally conductive face has a controlled long-wave infrared emissivity and is in thermal contact with the non-resistive heat source. The temperature detector is positioned to detect a temperature of the thermally conductive face.

Abstract: In some examples, an electronic device of a localization system comprises a wireless transceiver to exchange data with a mobile device and a processor. The electronic device obtains, from the mobile device, location coordinates of the mobile device. The location coordinates of the mobile device are set as location coordinates of the electronic device. A beacon package comprising an identifier of the electronic device and the location coordinates of the electronic device is generated. The beacon package is transmitted to a local device in proximity to the electronic device.

Abstract: Some examples include a fusing system for an additive manufacturing machine including a carriage movable across a build zone along the x-axis, a thermic source mounted to the carriage, and a roller mounted to the carriage adjacent to the thermic source. A longitudinal section of an exterior surface of the roller is exposed to indirect heat from the thermic source. The roller is controlled to rotate during and outside of a spreading operation of the build material. The carriage is to maintain the roller within a radiative heat transfer area of the thermic source.

Abstract: In at least some examples, a system comprises a first kiosk computer to display first content and to broadcast a first beacon signal, and a second kiosk computer to display second content and to broadcast a second beacon signal. A mobile device is to establish communications with the more proximate of the first and second kiosk computers as determined based on the first and second beacon signals and to cause new content to be provided to the more proximate kiosk computer. The more proximate kiosk computer is to display the new content.

Abstract: Examples associated with boot data validity are described. One example includes determining whether NVRAM boot data structure is valid. When the NVRAM boot data structure is valid, a NVRAM boot data structure validity flag is set to indicate the boot data structure is invalid. The validity flag is set to indicate the NVRAM boot data structure is valid once a point in a startup process is reached that indicates the startup process will complete successfully. When the NVRAM boot data structure is invalid, errors identified in the NVRAM boot data structure are repaired, and the startup process is restarted.

Abstract: A plasmonic analyte interrogation stage may include a plasmonically active surface and a transition metal photocatalytic layer on the plasmonically active surface.

Abstract: Some examples include a thermal imaging assembly, comprising a thermal imaging device including a thermal sensor, a transistor to generate heat, a thermal jacket forming a cavity to house the thermal imaging device, the thermal jacket forming a space around the thermal imaging device, the thermal jacket thermally coupled to the transistor to transmit heat generated by the transistor to the cavity, and an insulative shell disposed around the thermal jacket to maintain a temperature of the thermal imaging device within the insulative shell.

Abstract: A computing system can include a preview module and a display interface. In some examples, the preview module can obtain adjustment values for adjusting an operation for a printer to achieve or form an output of the printer with a set of attributes included in a print job. Additionally, the preview module can generate a preview of the output, based on the adjustment values, the set of attributes and a set of configuration parameters of the display component. In such examples, the preview can be based on the adjustment values, the set of attributes and a set of configuration parameters of the display component. In some examples, the preview module can communicate the preview of the output to a display component using the display interface.

Abstract: A fluid ejection die includes a fluid slot, laterally adjacent fluid ejection chambers each communicated with the fluid slot and having respective drop ejecting elements therein, and orifices each communicated with a respective one of the laterally adjacent fluid ejection chambers. The laterally adjacent fluid ejection chambers are spaced substantially a same distance from the fluid slot along a same side of the fluid slot, and the orifices communicated with the laterally adjacent fluid ejection chambers are spaced different distances from the fluid slot.

Abstract: According to examples, an apparatus may include forming components and a controller to control the forming components to fuse build material particles located in a selected area of a layer of build material particles forming a part section of a 3D object, in which the selected area is within and borders a selected boundary. The controller may also wait for a period of time to allow the part section to shrink to form a shrunken part section and, following the period of time, fuse build material particles located in a certain area around the shrunken part section, in which the certain area occupies a preset distance originating around the selected boundary of the layer of build material particles and extending toward an interior of the part section, and the preset distance corresponds to an amount of shrinkage predicted to occur in the part section during the period of time.

Abstract: Examples relate to operating mode configuration. An apparatus may include a memory resource storing executable instructions. Instructions may include instructions to receive a message from a host computing device coupled to the apparatus. The message may include a Host Based Media Access Control Address (HBMA). Instructions may further include instructions to configure the apparatus using the HBMA in response to a determination that the apparatus is in a particular operating mode. The apparatus may further include a processing resource to execute the instructions stored on the memory resource.

Abstract: A passive e-paper assembly includes a charge-transmissible moisture vapor barrier comprising a flexible inorganic material, a charge-responsive, re-writable media layer, and a first adhesion-promoting layer interposed between the moisture vapor barrier and a first side of the charge-responsive media layer.

Abstract: An example virtual reality (VR) system includes a VR headset, a plurality of monitoring stations, and an image processing device. Each of the monitoring stations includes an image sensor to capture images of the VR headset and an environment in which the VR headset is used. The image processing device is to process the images captured by the monitoring stations to detect an object in the environment, and to transmit, to the VR headset, information that includes notification of the object detected.

Abstract: In some examples, an apparatus includes a plurality of conduits to transport a material of a three-dimensional (3D) printing system between locations in the 3D printing system. A sensor assembly detects a clogged condition of a first conduit of the plurality of conduits. A valve assembly connected to the plurality of conduits selectively controls flow of the material through the plurality of conduits, the valve assembly controllable to actuate from a first setting to a second setting responsive to the detected clogged condition.

Abstract: Examples disclosed herein provide a digital pen for a computing device. As an example, the digital pen includes a barrel and a clip coupled to the barrel via a spring, wherein the clip is movable within the barrel in a direction opposite a force provided by the spring. The digital pen includes a first set of magnetic members to magnetically couple with a second set of magnetic members of the computing device, when the first and second sets of magnetic members are brought within proximity of each other. The digital pen includes a lever arm disposed within the barrel and comprising a wedge along an end of the lever arm. As an example, the wedge is to frictionally engage a retractable part of the computing device and an interior panel of the barrel, when the first and second sets of magnetic members are to magnetically couple with each other.

Abstract: In some examples, voice modulation based voice authentication may include receiving a signal that represents a modulated voice of a user, and analyzing the signal to ascertain a specified code for a specified time period. Voice modulation based voice authentication may further include determining, for the specified time period, an authentication code from a plurality of authentication codes, and comparing the specified code to the authentication code. In response to a determination that the specified code matches the authentication code, voice modulation based voice authentication may further include authenticating the user.

Abstract: A nanoparticle used in 3D printing is disclosed herein. In an example, the nanoparticle can comprise: at least one metal oxide, which absorbs infrared light in a range of from about 780 nm to about 2300 nm and is shown in formula (1): MmM?On??(1) wherein M is an alkali metal, m is greater than 0 and less than 1, M? is any metal, and n is greater than 0 and less than or equal to 4; and a bilayer-forming surfactant encapsulating at least a portion of the metal oxide, wherein the nanoparticle has a diameter of from about 0.1 nm to about 500 nm.

Abstract: A computer device including an integrated input device is provided. The integrated input device includes a positive disconnect system including a display of an open connection to the integrated input device when the integrated input device is deactivated. The open connection comprises a visible metal trace on a line coupling the integrated input device to the computer device.

Abstract: An additive manufacturing device for reducing vibrational sounds produced during an evacuation process includes a shaker connected to a build area of the additive manufacturing device, the shaker to vibrate the build area during the evacuation process to separate fused and non-fused build material of a cake and an exciting transducer to transmit a reducing signal during the evacuation process such that the reducing signal reduces vibrational sounds produced by the shaker before the vibrational sounds reaches a user.

Abstract: In one example in accordance with the present disclosure, an additive manufacturing build unit is described. The additive manufacturing build unit includes a vibrating bed on which a volume of build material is to be disposed. The bed is to vibrate to remove excess build material. A non-vibrating frame of the build unit supports the vibrating bed. The build unit also includes a bed-frame interface to: couple the vibrating bed to the non-vibrating bed frame, and isolate vibrations to the vibrating bed. A flexible seal of the build unit is disposed between the vibrating bed and non-vibrating frame. The flexible seal prevents build material from contaminating an additive manufacturing system in which the additive manufacturing build unit is disposed and allows relative motion between the vibrating bed and the non-vibrating frame.

Abstract: Examples associated with device haptic feedback are described. One example bag includes a power source integrated into the bag. The power source may provide power to an electronic device. The bag includes a device monitor module to monitor a state of the electronic device. A haptic feedback generator provides a haptic signal to a holder of the bag. The signal may be provided in response to a signal from the device monitor module regarding the state of the electronic device.

Abstract: Example implementations relate to ferromagnetic covers. For instance, in an example housing can include a bezel including first opening extending through a recess included in the bezel, a first magnet and a second magnet in an internal volume of the housing, and a ferromagnetic cover disposed in the recess and magnetically coupled to the first magnet and the second magnet, where the ferromagnetic cover includes a second opening to obscure a viewing portion of the first opening with the continuous portion when the ferromagnetic cover is positioned adjacent to a first side surface of the recess.

Abstract: Example implementations relate to movable pen caps. In an example, an active electrostatic stylus (AES) includes a housing, a pen tip coupled to a sensor, and an integrated pen cap coupled to the housing. The pen cap is movable between a first locked position and a second distal position to enclose the pen tip in an internal volume of the integrated pen cap when the pen cap is located at the second distal position.

Abstract: A channel layer of a digital microfluidic device may include a number of sample wells located on a first side of the die, a number of first capillary channels fluidically coupled to each of the sample wells, the first capillary channels drawing a fluid from the sample wells using capillary forces, a capillary break fluidically coupled to each of the first capillary channels to dispense a portion of the fluid drawn from the sample wells through the capillary forces, a number of intermediate chambers fluidically coupled to the capillary break, a number of second capillary channels fluidically coupled to the intermediate chambers, the second capillary channels drawing the fluid from the intermediate chambers using capillary forces, and a number of mixing chambers fluidically coupled to the second capillary channels into which the capillary forces of the second capillary channels cause the fluid to enter the mixing chambers.

Abstract: In one example, a topographic build plate for an additive manufacturing system. The build plate is to support a 3D object fabricated layer-by-layer, and is divided into plural blocks each having a build surface. In-between fabrication of layers of the object, a first one of the blocks is offset in a Z-direction from a second one of the blocks to position the build surfaces of the first and second blocks at different Z-direction locations to replace at least a portion of a support structure of the 3D object.

Abstract: According to examples, a three-dimensional (3D) fabrication system may include fabrication components and a controller. The controller may control the fabrication components to fabricate parts of a 3D object in a build envelope, the parts to be assembled together to form the object, and in which the parts are fabricated at locations corresponding to relative positions of the parts with respect to each other in the assembled object. The controller may also control the fabrication components to fabricate a cage around the parts in the build envelope.

Abstract: Examples disclosed herein related to selecting a telepresence device action. In one implementation, an electronic device determines a non-verbal characteristic of a communication of a first user intended for a second user at a remote location. The electronic device may determine a characteristic of the second user and select a delivery action based on a translation of the non-verbal characteristic to the second user based on the characteristic of the second user. The electronic device may transmit information about the selected delivery action to an electronic device to cause the electronic device to perform the selected action to provide the communication to the second user.

Abstract: In one example, an electronic input device is described. The electronic input device includes a cylindrical shaft including a tip. A sensor housing of the electronic input device is disposed within an external housing. The sensor housing is parallel with, and surrounds, the cylindrical shaft. The electronic input device also includes a radial sensor(s) disposed on an inside diameter of the sensor housing. The sensor(s) are to sense, directly from the tip, radial force inputs against the tip.

Abstract: A 3D printer and method include a cartridge receiver to hold a material cartridge that accepts build material into the material cartridge from the 3D printer and makes build material available from the material cartridge. A first conveying system of the 3D printer transports build material for the 3D printing. A second conveying system of the 3D printer facilitates recovery of excess build material from the 3D printing.

Abstract: In some examples, an assembly includes a plastic layer to cover a surface of a display panel, a rigid carrier to support the plastic layer, and a removable fastener to attach the plastic layer to the rigid carrier, the removable fastener to release the rigid carrier from the plastic layer.

Abstract: According to examples, a brown body has from about 0.02 wt. % to about 10 wt. % of a metal nanoparticle binder, in which the metal nanoparticle binder is selectively located within an area of the brown body to impart a strength greater than about 1 kPa to the area.

Abstract: This disclosure relates to a method of 3-D printing comprising: applying a layer of build material onto a print platform, wherein the build material comprises particles of a polymer comprising polymer chains having at least one reactive group that is protected with a protecting group; printing a de-protecting agent at selected locations on the layer of build material; and coalescing particles of the polymer at the printed locations on the layer of build material to form a coalesced polymer layer.

Abstract: Example implementations relate to shell applications. An example controller can display, using a shell executor component and via a plurality of user interfaces running a same operating system on a same network, a plurality of shell applications. Two of the plurality of shell applications can be different shell applications.

Abstract: In some examples, preheat three-dimensional (3D) printer build material can include a heating plate of a 3D printer to preheat build material from below the build material, where the heating plate is located adjacent to a build platform of the 3D printer, and a heater-spreader carriage of the 3D printer to preheat the build material from above the build material and spread the preheated build material from the heating plate to the build platform.

Abstract: Example implementations relate to retention devices. A retention device may comprise a first end coupled to a connector housing of a first cable and a second end removably coupleable to a second cable to lock the first cable to the second cable when the first cable and the second cable are in an engaged position.

Abstract: Example systems relate to recoater movement. A non-transitory machine readable medium may contain instructions executable by a processor. The instructions may include instructions to change an action of a recoater in response to a determination that the recoater has reached a first location of a build area comprising build material. Instructions may further include instructions to lift the recoater in response to a determination that the recoater has reached a second location of the build area. Instructions may additionally include instructions to move the recoater over the second location at the lifted position, wherein the second location includes a build-up of the build material.

Abstract: An example inkjet primer fluid includes an alkoxysilane, a surfactant, a co-solvent, and a balance of water; and is at least substantially colorless. In an example method, a primer fluid, including an alkoxysilane, a surfactant, a co-solvent, and a balance of water, is thermal inkjet printed from a thermal inkjet printhead to form a silicon dioxide film on a resistor. Then, a jettable composition, including suspended nanoparticles, is thermal inkjet printed from the thermal inkjet printhead. In another example method, suspended nanoparticles, an alkoxysilane, and a growth mediator are combined to form a mixture. The mixture is heated to a temperature ranging from about 60° C. to about 80° C. and stirred for about 12 hours to about 36 hours to form silicon dioxide coated, suspended nanoparticles. Then, a surfactant, a zwitterionic stabilizer, a co-solvent, and a balance of water are added to the mixture to form a stabilized, jettable composition.

Abstract: A device for forming spherical particles may include a receiving chamber having a heating portion and a cooling portion. Wire segments may travel in a free fall through the receiving chamber. While falling through the heating portion, wire segments may be heated to form spherical particles in response to exposure to microwave electromagnetic radiation. While falling through the cooling portion, formed spherical particles cool.

Abstract: A media retraction system includes a loadstop shaft rotatable about an axis thereof, and a loadstop paddle rotatably coupled with and slidably mounted on the loadstop shaft such that the loadstop paddle is slidable about the axis of the loadstop shaft.

Abstract: A technique includes providing, by a computer, a portal to provide a catalog describing features of a plurality of cloud services available and to be provided by otherwise unused hardware resources of a plurality of private cloud providers. The technique includes, by the computer, in response to input received through the portal selecting a given cloud service for a tenant, exposing the given cloud service to the tenant. Exposing the given cloud service to the user includes requesting a given cloud provider corresponding to the given cloud service to configure the given cloud provider to provide the given cloud service to the tenant.

Abstract: Example implementations relate to managing ownership transfer of a file system instance in a virtualized distributed storage system. The virtualized distributed storage system includes a first node having a first virtual controller that acts as an owner of a file system instance in a distributed storage, and a second node having a second virtual controller coupled to the first node over a network. A failure condition associated with a first node is detected. Further, in response to detection of the failure condition, an ownership of the file system instance may be transferred from the first virtual controller to the second virtual controller no later than an IP address switchover of the first virtual controller.

Abstract: A system described herein provides real-time wireless video delivery using a multi-channel communications link. A method of employing elements of the system includes generating a first set of video data and generating a second set of video data. Further, encoding the first set of video data such that the second set of video data is a higher resolution version of the first set of video data and the encoded first set of video data is to supplement the second set of video data in response to a data drop.

Abstract: In one example a liquid level sensing device is described. The device includes a carrier and a liquid level sensing device disposed on the carrier. The liquid level sensing interface has an aspect ratio of at least 1:50. A number of liquid level sensing components are disposed on the liquid level sensing interface. The number of liquid level sensing components detect a liquid level in a liquid container. The liquid level sensing device also includes an electrical interconnect to output data collected from the number of liquid level sensing components.

Abstract: Examples of vacuum operated pumps are described herein. In an example, a vacuum operated pump includes a plurality of fluid ports, such as an inlet port and an outlet port. The vacuum operated pump may also include a communication port and a diaphragm. The communication port may provide for fluid communication among the plurality of fluid ports. The diaphragm may control the plurality of the fluid ports and the communication port. The diaphragm may mate with the communication port in an idle state of the vacuum operated pump to isolate each of the plurality of fluid ports.