Abstract: A method and device for modifying virtual content according to various simulation characteristics includes obtaining first virtual content; obtaining one or more simulation characteristics; and generating second virtual content by modifying the first virtual content according to the one or more simulation characteristics; and presenting the second virtual content.

Abstract: Various implementations disclosed herein include devices, systems, and methods for presenting content based on environmental data. In various implementations, a device includes a display, a non-transitory memory and one or more processors coupled with the display and the non-transitory memory. In some implementations, a method includes obtaining environmental data associated with a physical environment in which the device is located. In some implementations, the method includes selecting, from a plurality of presentation modes, a first presentation mode for content based on the environmental data. In some implementations, the method includes presenting the content in accordance with the first presentation mode.

Abstract: In one implementation, a method of displaying an animation is performed at a device including an optical see-through display, one or more processors, and a non-transitory memory. The method includes receiving a request to display a first animation of an object exhibiting a response characteristic. The method includes determining a metric characterizing an amount of processing power for the device to display the first animation on the optical see-through display. The method includes, in response to a determination that the metric exceeds a threshold associated with the device, selecting a second animation of the object exhibiting the response characteristic. The method includes displaying the second animation.

Abstract: In accordance with some implementations, a method includes: displaying a visual representation of a media object according to a first resource utilization value; while displaying the visual representation of the media object, determining an engagement score that characterizes a level of user engagement with respect to the media object; in accordance with a determination that the engagement score is greater than a threshold value, maintaining display of the visual representation of the media object according to the first resource utilization value; and in accordance with a determination that the engagement score is less than the threshold value: ceasing display of the visual representation of the media object according to the first resource utilization value; and playing, via the speaker, an audio representation of the media object, according to a second resource utilization value different than the first resource utilization value.

Abstract: In accordance with some implementations, a method is performed at an electronic device with one or more processors, a non-transitory memory, and a display. The method includes displaying, on the display, a representation of a first portion of a media object, wherein the first portion of the media object is associated with a first resource utilization value. The first resource utilization value characterizes a utilization of a respective resource by the electronic device. The method includes determining an engagement score that characterizes a level of user engagement with respect to the representation of the first portion of the media object. The method includes changing the utilization of the respective resource from the first resource utilization value to a second resource utilization value based on a function of the engagement score. The second resource utilization value is associated with a second portion of the media object.

Abstract: In accordance with some implementations, a method is performed at an electronic device with one or more processors, a non-transitory memory, and a display. The method includes displaying, on the display, a representation of a first portion of a media object, wherein the first portion of the media object is associated with a first resource utilization value. The first resource utilization value characterizes a utilization of a respective resource by the electronic device. The method includes determining an engagement score that characterizes a level of user engagement with respect to the representation of the first portion of the media object. The method includes changing the utilization of the respective resource from the first resource utilization value to a second resource utilization value based on a function of the engagement score. The second resource utilization value is associated with a second portion of the media object.

Abstract: Described is a process for making acrylic resins suitable as polymeric surfactants used in emulsion polymerization, as pigment grinding resins and for preparing dispersions used as overprint varnishes. The feedstock is styrene, &agr;-methyl styrene, acrylic acid and a polymerization initiator and is preferably free of solvent. This mix is passed through a continuous tube reactor run at a controlled range of pressure and relatively low residence time and temperature. Optimally, when the polymer/unreacted monomers blend exits the reactor and is devolatilized, the recovered monomers are used to make up part of the feedstock.

Abstract: The invention relates to a process for producing a polymer or copolymer from monomer material comprising an acrylate, methacrylate, or mixture of such monomers, which comprises the steps of: (a) charging into a continuous tube reactor a feedstock comprising said monomer material and a polymerization initiator; (b) maintaining a flow rate of said material through the reactor at a reaction temperature in the reactor and under pressure sufficient to provide a residence time of the feedstock in the reactor during which polymerization will occur, to form a resin product in the reactor, and said resulting resin product comprising unreacted monomer, and (c) devolatilizing said resin product exiting the reactor to remove unreacted monomers, to provide a substantially monomer-free resin product. Further, the invention relates to resin product made by the process.

Abstract: Described is a process for making acrylic resins suitable as polymeric surfactants used in emulsion polymerization, as pigment grinding resins and for preparing dispersions used as overprint varnishes. The feedstock is styrene, .alpha.-methyl styrene, acrylic acid and a polymerization initiator and is preferably free of solvent. This mix is passed through a continuous tube reactor run at a controlled range of pressure and relatively low residence time and temperature. Optimally, when the polymer/unreacted monomers blend exits the reactor and is devolatilized, the recovered monomers are used to make up part of the feedstock.

Abstract: The present invention is a mixture including a solvent, a first surfactant and a second, dispersible surfactant different from the first surfactant, the mixture having stabilized gas microbubbles formed therein by sonication. The gas microbubbles are useful in ultrasonic diagnostics. Preferably the first surfactant is substantially soluble in the solvent and the second surfactant is substantially insoluble in the solvent. The present invention also includes a process for preparing the stabilized gas microbubbles and a method for altering the contrast of an ultrasonic image using the microbubbles as a contrast agent.