Abstract: Measurement of the impedance and complex resistivity of a sample is used for measuring parameters resulting from a change in physical or chemical state. A variable frequency signal is provided by a transformer primary coil. A secondary coil of the transformer with a closed loop and electrically coupled said sample is monitored along with a leakage current sensor. Sampling at multiple signal frequencies is performed at the multiple signal frequencies.

Abstract: Provided herein are a luminogen compound of formula (I) including a AIE luminophore moiety conjugated with a maleimide moiety and a use of the same for detecting thiol groups in biomolecules. Also provided is a dye molecule, a biosensor or a bioprobe comprising the luminogen compound of formula (I) in use for detecting thiol groups in biomolecules. The detection method of the present subject matter not only has high thio-selectivity and sensitivity, but also is rapid, convenient and handy.

Abstract: Integration of high-fidelity readout and compressive readout channels in a signal sensor array system is provided. A high-fidelity representation of the sensor array is recovered by combining the data from both the high-resolution and compressive readout channels. The signal sensory array system uses a non-correlated-double-sampling (non-CDS) pixel block readout, random-access-reset pixel, ADC-integrated image compression, high-resolution successive-approximation-register (SAR) analog-to-digital-converters (ADC), SAR ADC self-calibration, and low-noise time-domain comparator.

Abstract: A sound attenuation panel is configured with a substantially acoustically transparent planar, rigid frame divided into a plurality of individual, substantially two-dimensional cells. A sheet of a flexible material is fixed to the rigid frame, and a plurality of platelets fixed to the sheet of flexible material such that each individual cell of the plurality of cells is provided with a respective platelet to establish a resonant frequency, the resonant frequency defined by the planar geometry of the individual cells, the flexibility of the flexible material and the platelets. The cells are divided into at least two different types of the individual cells, configured so that sound waves emitted by a first type of said different types of individual cells establishes a sound cancellation pattern with sound waves emitted by a second type of said different individual cells or an aggregation of different types of the individual cells.

Abstract: The microspheres have many possible applications including smart drug delivery, breaking and damper devices. In one arrangement, a microsphere comprises a shell 120 and a core 110. The core comprises a liquid, which may be a drug, while the shell comprises magnetic particles. The microsphere is deformable in response to application of an external magnetic field. Also disclose is an arrangement in which a microsphere has a magnetic core and a PDMS shell.

Abstract: Stream-switching techniques are applied in a content delivery system. A merge frame is generated as a function of bit-rates, distortion, and a piecewise constant operator. Parameters of the piecewise constant operator are selected to optimize the merge frame. Data streams are switched based on bandwidth requirements, switch requests, and throughput of a network. Images are reconstructed based on the merge frames and prediction frames. Reconstructed images are identically reconstructed for any prediction frame based on the merge frame.

Abstract: Ultra-large graphene oxide (UL-GO) sheets are formed using a Langmuir-Blodgett (LB) thin film process. Sulfuric acid and nitric acid are applied to interlayers of natural graphite flake to form graphite intercalation compound (GIC) powders. The GIC powders are expanded at a high temperature, and intercalating agents are used to further oxidize the expanded GIC powders by to exfoliating the EG into monolayer graphene oxide (GO) sheets. The GO is sequentially centrifuged and UL-GO sheets are collected. An LB thin film is prepared from the collected sheets and the thin films are reduced and chemically doped.

Abstract: The subject disclosure presents power semiconductor devices, and methods for manufacture thereof, with a low on-state voltage drop and a low turn-off energy. In an aspect, a power semiconductor device is provided that embodies a normally off trench gate-controlled p-i-n switch with a charge trapping material in the gate dielectric and a self-depleted channel.

Abstract: A wafer having a plurality of light-emitting diode (LED) submounts and a method for fabricating an LED submount are provided. Each of the plurality of LED submounts of the wafer includes: a substrate (201), including through vias (203a); an LED die (208) mounted in a cavity (204) on a first side of the substrate (201) and connected to the through vias (203a); a redistribution layer (205a) attached to a second side of the substrate (201) connected to the LED die (208) through the through vias (203a). The method includes providing a wafer as a substrate (201); providing a cavity (204) in the substrate (201) on a first side of the substrate (201); providing through vias (203a) in the substrate (201), providing a redistribution layer (205a) on the second side of the substrate (201), and mounting an LED (208) in the cavity (204), wherein the LED die (208) is connected to the redistribution layer (205a) through the through vias (203a).

Abstract: Image projection utilizing light-emitting diodes on a silicon (LEDoS) substrate is described herein. LEDoS devices selectively activate LED pixels to produce light. Light can excite color conversion materials of the LEDoS devices to form color images. Images can be projected onto a projection surface.

Abstract: Fluorescent bioprobes comprising luminogen formed nanoparticles comprising luminogens with aggregation-induced emission (AIE) properties, which can be used for long-term cell tracking. The luminogens are nonemissive in organic solution but become highly emissive when aggregated in aqueous solution. The fluorescent molecules can readily pass through cell membranes, stain only the cell cytoplasm, and form highly emissive nanoaggregates in aqueous media without any obvious cytoxicity in the living cells. Furthermore, the molecules can be retained inside the cells without noticeable leakage to the outside. Therefore, these AIE-based compounds can be used as selective and cell-compatible fluroescent bioprobes for long-term live cell tracking and imaging.

Abstract: Systems and methods that facilitate image motion analysis are described herein. According to a first image motion analysis technique a first image is warped according to a locally affine model. The first warped image and a second image are compared and a match between the first warped image and the second image is discovered. A value for a motion parameter is estimated based on the match. According to a second image motion analysis technique, an image sequence is converted into an input matrix. A column of the input matrix corresponds to a vectorized image related to the image sequence. The input matrix is approximated with a low rank matrix having a lower rank than the input matrix. One or more outliers of the input matrix are detected.

Abstract: The present invention provides a patterned polarization converter having multiple domains that can be used to convert input linear polarized light to output light with spatially varying polarization states, including domains that produce linearly polarized light and domains that produce circular polarized light based on the patterning of the domains. A patterned polarization converter having multiple domains may be used in a polarization sensor application capable of detecting the polarization state of input light. The present invention further provides patterned radial and azimuthal polarization converters, which have utility in applications such as optical tweezers. Additionally, patterned polarization converters may be used to fabricate more patterned polarization converters having the same pattern using one-step photoalignment to copy the pattern of an existing patterned polarization converter to an unpatterned photoalignment layer.

Abstract: A method and device for forming deformation crystal twins in piezoelectric materials that includes deforming and heating the piezoelectric material in an oxidative atmosphere to a predetermined temperature for a predetermined time. The crystalline piezoelectric material is then allowed to cool to room temperature and the deformation is removed.

Abstract: A field sequential color (FSC) ferroelectric liquid crystal (FLC) display cell, part of an FSC display, is provided. The FSC FLC display cell includes: two polarizers; an FLC layer, positioned between the two polarizers, the FLC layer comprising FLCs with helix pitch less than the thickness of the FLC layer; and a voltage source, configured to apply an electrical driving voltage to the FLC layer, the electrical driving voltage applied to the FLC layer having an amplitude greater than a threshold voltage for helix unwinding, and wherein the voltage source is further configured to apply electrical driving voltages to light emitting diodes (LEDs) of the FSC display to illuminate pixels of the FSC display. The pixels are illuminated in an FSC manner. The FLC layer is configured to provide a defect-free layer of FLC under the electrical driving voltage applied to the FLC layer.

Abstract: Hybrid buck converters that incorporate switching converter and auxiliary linear regulators are described. The auxiliary linear regulators are automatically activated during load transients to source or sink large currents to the output to achieve fast transient responses and are automatically deactivated during steady states to maintain high power efficiencies. With the proposed control scheme of automatic loop transition between linear and switching regulation loops, the power management interface design is simplified while the transient response performances are improved without compromising the power efficiencies.

Abstract: Provided is sub-block motion estimation that includes a full search with a reduced search area around a motion vector predictor. Also provided are a single (or unified) motion vector predictor and a function similar to a rate-distortion cost function. Also provided is a scanning order that can reduce or substantially eliminated redundant data loading and/or that can achieve different data re-use ratio. Further, provided herein is a reconfigurable multi-resolution motion vector re-use hardware architecture based on a single motion vector predictor and a function similar to a rate-distortion cost function. Further, through utilization of the disclosed aspects, only a small number of past motion vectors are propagated and the disclosed aspects can be reconfigured for video with different spatial resolution.

Abstract: A polarization converter and polarization conversion systems are provided. The polarization converter and polarization conversion systems include a patterned polarization grating with left hand and right hand polarization grating domains. The polarization grating domains are configured to diffract incident non-polarized light into beams having left and right circular polarization states.

Abstract: Passivation of group III-nitride hetero junction devices is described herein. The passivation facilitates simultaneous realization of effective/high current collapse suppression and low leakage current without the use of a sophisticated multiple-field plate technique. The passivation can be achieved by growing a charge-polarized AlN thin film on the surface of a group III-nitride based heterojunction device by plasma-enhanced atomic layer deposition such that positive polarization charges are induced at the interface to compensate for a majority of negative charges at the interface.

Abstract: A scalable Media-on-Demand (MoD) method to a large group of users in the Internet. This method makes use of peer buffering capabilities to collaborate in the distribution and downloading of media, facilitated by a central repository for the search of optimal peers as parent nodes to connect to and for the support of advanced features such as fast forward and backward plays. The method relieves the server load by shifting the media streaming functionality to the client side with high media receiving continuity and quality, leading to well-balanced and low network loads.