Abstract: A multi-beam volumetric resin curing system and method for whole-volume additive manufacturing of an object includes a bath containing a photosensitive resin, a light source for producing a light beam, and a spatial light modulator which produces a phase- or intensity-modulated light beam by impressing a phase profile or intensity profile of an image onto a light beam received from the light source. The system and method also include projection optics which then produces multiple sub-image beams from the modulated light beam which are projected to intersect each other in the photosensitive resin to cure select volumetric regions of the resin in a whole-volume three-dimensional pattern representing the object.

Abstract: Methods, systems, and materials for producing micro-pixelated LEDs capable of achieving a full-color spectrum through stereolithography techniques are provided. The techniques include depositing a photocurable nanophosphor ink composition onto a substrate, projecting a pattern onto the substrate and ink composition, and then curing at least a portion of the ink composition based on the projected pattern. The ink composition includes at least one photocurable polymer, a plurality of nanophosphors (e.g., QDs), and at least one light-scattering additive. The resulting cured ink composition and substrate component can be a pixelated LED that is configured to fully convert blue light-emitting pixels to red and green light-emitting pixels. Printing systems for performing these methods and producing these LEDs are also disclosed, as are various, non-limiting examples of ink composition formulations.

Abstract: Systems and methods for improved stereolithographic (SLA) three-dimensional printing are provided. The systems and methods utilize an array-lens to produce kaleidoscopic imaging patterns, which in turn are used to direct the curing of resin to produce a three-dimensional object. The array-lens can be used to replicate, superposition, and/or overlap or otherwise reconstruct an image received by the array-lens, onto a resin that is used to form the desired object. The systems and methods can further use an optical diffuser, with a distance between the optical diffuser and the array-lens being adjustable to provide a desired kaleidoscopic imaging pattern on the resin. Additional features and methods for use with the provided SLA three-dimensional printing systems and methods are also provided.

Abstract: The techniques described herein relate to methods and apparatus for a resistive switching device. The resistive switching device includes a first electrode formed in a substrate. The resistive switching device also includes a plurality of layers formed above the first electrode, including a plurality of oxide layers, wherein one or more of the plurality of oxide layers comprise doped oxide layers, and one or more conductive spacers, wherein each pair of oxide layers of the plurality of oxide layers are separated by a conductive spacer of the one or more conductive spacers. The resistive switching device also includes a second electrode formed above the plurality of layers, such that the first electrode, the plurality of layers, and the second electrode are in series.

Abstract: Intelligent control of solar transmission through windows promises to reduce energy consumption for thermal comfort in buildings. However, the ability of current smart windows to regulate solar gain based on tunable extinction of phase-change materials is not optimum. A thin-film thermochromic device based on tunable light scattering of hydrogel microparticles of prescribed diameters is reported. In the study, poly (N-isopropylacrylamide)-2-Aminoethylmethacrylate hydrochloride (pNIPAm-AEMA) microparticles are synthesized, with low phase transition temperature ˜32° C. Notably, the average size of pNIPAm-AEMA particles can vary from 1388 nm at 25° C. to 546 nm at 35° C., leading to unprecedented infrared transmittance modulation of 75.6%, in agreement with the numerical simulation based on Mie theory. A high luminous transmittance of 87.2% is accomplished.

Abstract: Described is an acoustic absorbing structure and system provided from a composite material having one or more channels provided therein with each of the one or more channels having an aperture opening onto a surface of the composite material. The channels are provided having a cross-sectional shape and dimensions selected to exhibit a low frequency resonance in response to a low frequency sound wave provided thereto such that acoustic absorbing structure has a predetermined response characteristic in response to an acoustic signal provided thereto. Techniques for operating an acoustic absorbing system are also described.

Abstract: A multi-beam volumetric resin curing system and method for whole-volume additive manufacturing of an object includes a bath containing a photosensitive resin, a light source for producing a light beam, and a spatial light modulator which produces a phase- or intensity-modulated light beam by impressing a phase profile or intensity profile of an image onto a light beam received from the light source. The system and method also include projection optics which then produces multiple sub-image beams from the modulated light beam which are projected to intersect each other in the photosensitive resin to cure select volumetric regions of the resin in a whole-volume three-dimensional pattern representing the object.

Abstract: A multi-beam volumetric resin curing system and method for whole-volume additive manufacturing of an object includes a bath containing a photosensitive resin, a light source for producing a light beam, and a spatial light modulator which produces a phase- or intensity-modulated light beam by impressing a phase profile or intensity profile of an image onto a light beam received from the light source. The system and method also include projection optics which then produces multiple sub-image beams from the modulated light beam which are projected to intersect each other in the photosensitive resin to cure select volumetric regions of the resin in a whole-volume three-dimensional pattern representing the object.

Abstract: The techniques described herein relate to methods and apparatus for a resistive switching device. The resistive switching device includes a first electrode formed in a substrate. The resistive switching device also includes a plurality of layers formed above the first electrode, including a plurality of oxide layers, wherein one or more of the plurality of oxide layers comprise doped oxide layers, and one or more conductive spacers, wherein each pair of oxide layers of the plurality of oxide layers are separated by a conductive spacer of the one or more conductive spacers. The resistive switching device also includes a second electrode formed above the plurality of layers, such that the first electrode, the plurality of layers, and the second electrode are in series.

Abstract: Systems, apparatus, and methods for filtering acoustic energy include a first conduit substantially aligned with a longitudinal axis and defining a first opening for receiving incident acoustic energy from the environment. A cavity in fluid communication with the first conduit selectively amplifies and/or dampens the acoustic energy based on an associated resonance frequency. A moving element disposed in the cavity may be displaced relative to the cavity in a direction substantially aligned with the longitudinal axis and in an amount related to a sound pressure level of acoustic energy in the cavity. A second conduit substantially aligned with the longitudinal axis and in fluid communication with the cavity selectively attenuates acoustic energy from the cavity based on the sound pressure level by receiving at least some of the acoustic energy from the cavity and/or the moving element when it is displaced from the cavity.

Abstract: Described is an acoustic absorbing structure and system provided from a composite material having one or more channels provided therein with each of the one or more channels having an aperture opening onto a surface of the composite material. The channels are provided having a cross-sectional shape and dimensions selected to exhibit a low frequency resonance in response to a low frequency sound wave provided thereto such that acoustic absorbing structure has a predetermined response characteristic in response to an acoustic signal provided thereto. Techniques for operating an acoustic absorbing system are also described.

Abstract: Systems, apparatus, and methods for filtering acoustic energy include a first conduit substantially aligned with a longitudinal axis and defining a first opening for receiving incident acoustic energy from the environment. A cavity in fluid communication with the first conduit selectively amplifies and/or dampens the acoustic energy based on an associated resonance frequency. A moving element disposed in the cavity may be displaced relative to the cavity in a direction substantially aligned with the longitudinal axis and in an amount related to a sound pressure level of acoustic energy in the cavity. A second conduit substantially aligned with the longitudinal axis and in fluid communication with the cavity selectively attenuates acoustic energy from the cavity based on the sound pressure level by receiving at least some of the acoustic energy from the cavity and/or the moving element when it is displaced from the cavity.

Abstract: A multi-beam volumetric resin curing system and method for whole-volume additive manufacturing of an object includes a bath containing a photosensitive resin, a light source for producing a light beam, and a spatial light modulator which produces a phase- or intensity-modulated light beam by impressing a phase profile or intensity profile of an image onto a light beam received from the light source. The system and method also include projection optics which then produces multiple sub-image beams from the modulated light beam which are projected to intersect each other in the photosensitive resin to cure select volumetric regions of the resin in a whole-volume three-dimensional pattern representing the object.

Abstract: A high-resolution P?SL system and method incorporating one or more of the following features with a standard P?SL system using a SLM projected digital image to form components in a stereolithographic bath: a far-field superlens for producing sub-diffraction-limited features, multiple spatial light modulators (SLM) to generate spatially-controlled three-dimensional interference holograms with nanoscale features, and the integration of microfluidic components into the resin bath of a P?SL system to fabricate microstructures of different materials.

Abstract: A high-resolution P?SL system and method incorporating one or more of the following features with a standard P?SL system using a SLM projected digital image to form components in a stereolithographic bath: a far-field superlens for producing sub-diffraction-limited features, multiple spatial light modulators (SLM) to generate spatially-controlled three-dimensional interference holograms with nanoscale features, and the integration of microfluidic components into the resin bath of a P?SL system to fabricate microstructures of different materials.

Abstract: A high-resolution P?SL system and method incorporating one or more of the following features with a standard P?SL system using a SLM projected digital image to form components in a stereolithographic bath: a far-field superlens for producing sub-diffraction-limited features, multiple spatial light modulators (SLM) to generate spatially-controlled three-dimensional interference holograms with nanoscale features, and the integration of microfluidic components into the resin bath of a P?SL system to fabricate microstructures of different materials.

Abstract: The purchase of entertainment content online via advertising credits is disclosed herein. One disclosed embodiment comprises providing an advertising content item to a user over a network, and awarding an amount of advertising viewing credit to the user based upon the advertising content item provided to the user. Next, a request is received from the user to view an entertainment content item. In response, the entertainment content item is provided to the user, and at least a portion of the advertising viewing credit is deducted in exchange for providing the entertainment content item.

Abstract: Adjusting media streaming parameters of a media streaming device and media playback parameters of a media playback device is disclosed. In one embodiment, the system probes a network infrastructure to determine a network type, a playback device type, a streaming device type, a media content type, a preroll duration, and a playback device buffer size. Based upon these streaming and playback conditions, values of streaming parameters of a streaming device and values of playback parameters of a playback device are determined. Streaming parameters include the aggressiveness of the network transmitter, the slope of the transmit rate ramp-up, and the maximum transmit rate. Playback parameters include the amount of data prerolled by the playback device. The aforementioned values are sent to streaming and playback device control systems to control the streaming and the playback of the media, during and/or before playback.

Abstract: An intelligent retransmission of data stream segments is disclosed. One embodiment comprises detecting a missing media data segment at a media receiver, assigning a value to the missing media data segment based upon media playback consequences of not utilizing the missing media data segment, comparing the value with a threshold, and requesting retransmission of the missing media data segment from a media server if the value meets a predetermined condition relative to the threshold. In this manner, retransmission is requested when it is determined that retransmission will improve playback performance relative to non-retransmission.

Abstract: Described herein is technology for, among other things, improving playback of media streams by maximizing bandwidth utilization. The technology may be implemented via a remote playback device on a network. It involves monitoring requests for portions of streaming media content and the associated responses to the requests and then adjusting request parameters to more effectively utilize available bandwidth. The effective available bandwidth may be controlled by moderating requests in order to induce behavior favorable to media streaming in the flow control mechanisms which control the amount of data sent in response to a request.