Abstract: A lens with an adjustable surface profile can include an actuatable layer, an optical layer, and at least one actuator. The optical layer can include a deformable polymer, and the actuatable layer can have a surface profile that is configured to be adjustable using the at least one actuator. The optical layer, meanwhile, can be configured to deform when the at least one actuator actuates the actuatable layer.

Abstract: An augmented reality apparatus includes a plurality of transmission lines, plural signal-generating circuits, at least one additional transmission line, at least one signal-processing circuit, a multiplexer having a plurality of inputs and at least one output, a plurality of matching networks, and an additional matching network coupling the additional transmission line to the output of the multiplexer. Example AR/VR devices include a camera configured to receive light from the external environment of the device and to provide a camera signal. The camera may include a surface variable lens including a support layer, an optical layer, a membrane layer, and an actuator. A computer-implemented method for anatomical electromyography test design includes identifying a wearable device having a frame including a plurality of electrodes, and calibrating the plurality of electrodes.

Abstract: A device for recovering variable low-temperature gas includes a low temperature stabilizing system, a compression system, an expansion refrigeration system, and a heat exchange system, which are connected to each other by pipelines, where the low temperature stabilizing system is composed of a liquid storage unit, a liquid delivery unit, a liquid jet gasification mixing unit, and a control unit, for regulating the temperature of low-temperature gas; a liquid outlet channel of the liquid storage unit is connected to a liquid inlet channel of the liquid delivery unit, a liquid outlet channel of the liquid delivery unit is connected to a liquid inlet channel of the liquid jet gasification mixing unit, and the compression system is composed of a raw material compressor and a circulating compressor; and a gas outlet channel of the raw material compressor is connected to a gas inlet channel of the circulating compressor.

Abstract: A method for fabricating a protonic ceramic energy device includes: coating an electrolyte layer on an anode layer; and densifying the electrolyte layer by a rapid laser reactive sintering (RLRS) process on the electrolyte layer and/or the anode layer to form a half-cell comprising a dense electrolyte and a porous anode.

Abstract: A fluidized bed reactor, a device for preparing low-carbon olefin, and a method for preparing low-carbon olefin are provided. The reaction zone of the fluidized bed reactor is sequentially, from bottom to top, provided with a raw material first distributor, a raw material second distributor and a catalyst distributor; the catalyst distributor is connected with the catalyst second feeding inlet; a dense-phase zone is formed between the raw material first distributor and the raw material second distributor, and the area where the catalyst distributor is located is formed as a catalyst distribution zone connected with the dense-phase zone; and at least one catalyst first feeding inlet(s) is provided on the side wall of reactor of the dense-phase zone. The distribution of the catalyst and the full contact of the catalyst with the raw materials can be achieved using the fluidized bed reactor and the device.

Abstract: A drug scanning and identification system including a spectrometer, a drug holder, a mobile device and a drug identification model is provided. The spectrometer includes a light source, a diffraction grating, a light-absorption element, a wavelength selector, and a single-point photodetector. The drug holder includes a transparent area and a light-absorption area. The drug is disposed on the transparent area. The light-absorption area surrounds the transparent area. The mobile device is adapted to send a control command to trigger the spectrometer scanning the drug so as to obtain spectrum data of the drug. The spectrometer is adapted to transmit the spectrum data of the drug to the drug identification model. The drug identification model is adapted to identify the spectrum data of the drug such that the drug identification model generates an identification result. The identification result is displayed by the mobile device.

Abstract: A direct plasmonic photovoltaic cell (1) and a method of manufacturing such a photovoltaic cell is proposed. The photovoltaic cell (1) comprises: a first conductive substrate (2): a layer of a p-type semiconductor as a Hole Transporting Layer HTL (3): a layer of metal plasmonic nanoparticles (41. 42): a layer of an n-type semiconductor as an Electron Transporting Layer ETL (5); and a second conductive substrate (6). The HTL (3) is in direct physical contact with the first conductive substrate (2) and the second conductive substrate (6) is in direct physical contact with the ETL (5).

Abstract: A charge generating assembly for a direct plasmonic photovoltaic cell with increased overall efficiency, comprising a layer of an n-type semiconductor as an electron transporting layer (1) (ETL), a layer of metal plasmonic nanoparticles (2), an insulating layer (4) between the n-type semiconductor and the layer of metal plasmonic nanoparticles and a layer of a p-type semiconductor as a hole transporting layer (3) (HTL).

Abstract: The disclosed techniques generally relate to devices and methods for generating cropped images in which one or more features of interest are preserved or emphasized. In one implementation, such features of interest may include facial features. In accordance with certain implementations, location and extent of such features may be identified and used in conjunction with information regarding display characteristics so as to generate cropped images preserving or emphasizing the feature of interest when displayed on a given device.

Abstract: A method, an apparatus, and a system are for evaluating code design quality. The method for evaluating code design quality includes: determining, based upon a result from static scanning of code, a probability of the presence of an error-prone pattern in the code; inputting the probability into an artificial neural network, and determining, based upon the artificial neural network, a prediction result for whether the code violates a preset design rule and for a quantized degree to which the design rule is violated; and based upon the prediction result, evaluating the design quality of the code. The present method is able to improve the accuracy of code design quality evaluation. By detecting a presence of an error-prone pattern in the code, whether or not a key design rule has been violated in a design process and a quantized degree to which the key design rule is violated are predicted.

Abstract: An SGT MOSFET device and a manufacturing method of contact holes of the SGT MOSFET device relate to a field of power semiconductor device manufacturing. The manufacturing method includes steps of preparing a gate trench, source trenches, a shielding gate trench, and a pre-embedded ESD trench, preparing a cell structure, preparing an ESD region, a body region, and a source region by ion implantation and preparing a gate contact hole, a source contact hole, a shield gate contact hole, and ESD contact holes. By pre-embedding an ESD structure, depth differences between the gate contact hole, the source contact hole, the shielding gate contact hole, and the ESD contact holes are reduced, and the contact holes are prepared by only one photolithography process. The manufacturing method reduces one photolithography process and one process of growing ESD polysilicon, saves cost, and reduces difficulty of the manufacturing process.

Abstract: A single phase, organic-inorganic sol-gel with controlled rheology that can be solidified readily and converted into a ceramic material is provided. The organic-inorganic sol-gel may be uranium-based or cerium-based. Highly spherical ceramic microspheres such as uranium or cerium gel microspheres are fabricated and are able to be converted to homogeneous ceramics after thermal decomposition at high temperatures. Pure phase UC2 can be obtained upon carbothermal reaction. Pure phase U2N3 can also be obtained after converting UC2 to U2N3.

Abstract: An electroprinting system having a voltage generator that produces a signal, a drop-on-demand (DOD) droplet generator actuated by the signal of the voltage generator, the drop generator having a wire for submersion into a viscous fluid, a power supply connected to the wire for supplying current to the DOD droplet generator, and a grounded collector for collection of the droplet generated by the DOD droplet generator. The drop-on-demand (DOD) droplet generator has a wire for plunging or threading through a meniscus of a viscous fluid, and an applied electrical potential to form a droplet from the viscous fluid. A method of electroprinting of a viscous fluid is also provided.

Abstract: An application of a transgenic stem cell-derived exosome in preparing a medicament or whitening cosmetic is provided. In the present disclosure, miR-27b-3p is transfected into an epidermal stem cell, and a transgenic stem cell-derived exosome is harvested. It is experimentally verified that the exosome can inhibit the expression of PIK3R3 protein in melanocytes and the proliferation and migration of melanocytes; and safety experiments further demonstrate the safety of the exosome. Therefore, corresponding medicaments or cosmetics prepared from the exosome have excellent medicinal and cosmetic application prospects.

Abstract: A method for preparing glucopyranosyl derivatives as sodium dependent glucose cotransporter (SGLT) inhibitors, an intermediate thereof, and a method for preparing the intermediate.

Abstract: The invention relates to a recombinant Escherichia coli expressing a fusion protein of formamidase and phosphite dehydrogenase, a construction method and use thereof. The invention includes adopting engineered E. coli DH5? as a host, amplifying a cloned formamidase gene and a cloned phosphite dehydrogenase gene into a fusion gene, ligating the fusion gene to a multiple cloning site of a vector, transforming the obtained recombinant plasmid into the E. coli DH5?, extracting the plasmid and transforming into an expression strain, and performing induction culture to obtain a recombinant E. coli. The recombinant E. coli can express a fusion protein of formamidase and phosphite dehydrogenase.

Abstract: An application of a transgenic stem cell-derived exosome in preparing a medicament or whitening cosmetic is provided. In the present disclosure, miR-27b-3p is transfected into an epidermal stem cell, and a transgenic stem cell-derived exosome is harvested. It is experimentally verified that the exosome can inhibit the expression of PIK3R3 protein in melanocytes and the proliferation and migration of melanocytes; and safety experiments further demonstrate the safety of the exosome. Therefore, corresponding medicaments or cosmetics prepared from the exosome have excellent medicinal and cosmetic application prospects.

Abstract: A drug scanning and identification system including a spectrometer, a drug holder, a mobile device and a drug identification model is provided. The spectrometer includes a light source, a diffraction grating, a light-absorption element, a wavelength selector, and a single-point photodetector. The drug holder includes a transparent area and a light-absorption area. The drug is disposed on the transparent area. The light-absorption area surrounds the transparent area. The mobile device is adapted to send a control command to trigger the spectrometer scanning the drug so as to obtain spectrum data of the drug. The spectrometer is adapted to transmit the spectrum data of the drug to the drug identification model. The drug identification model is adapted to identify the spectrum data of the drug such that the drug identification model generates an identification result. The identification result is displayed by the mobile device.