Abstract: Digital logic voltage regulators and related methods generate a regulated voltage via controlled switching of a power transistor. A digital logic voltage regulator includes a voltage level comparator, a power transistor, and a charge accumulator. The voltage level comparator generates a digital control signal that alternates between a first voltage level and a second voltage level in response to changes in relative voltage level between the regulated output voltage and the target voltage. The digital control signal causes the power transistor to switch from off to on in response to a reduction of the regulated output voltage relative to the target voltage and causes the power transistor to switch from on to off in response to an increase of the regulated output voltage relative to the target voltage. The charge accumulator decreases variation in the regulated output voltage that would occur without the charge accumulator.

Abstract: Disclosed is a non-blind-area multi-view panoramic stereo imaging device. The device comprises a front lens assembly or a plane mirror, an aspheric mirror, a middle lens assembly, a panoramic block, a rear lens assembly and an image surface which are longitudinally arranged along an optical axis. The aspheric mirror comprises a central hole and an annular reflecting surface. The panoramic block comprises a front central circular transmission surface, a front reflecting surface, a front transmission surface, a rear reflecting surface and a rear transmission surface. The front reflecting surface, the front transmission surface and the rear reflecting surface are all annular surfaces. The inner edge of the front reflecting surface is connected with the edge of the front central circular transmission surface.

Abstract: Multi-media parcel delivery systems and associated methods are provided herein including systems capable of delivering a parcel through air and one or more bodies of water. In certain embodiments, an aerial vehicle is configured to couple to the parcel using a cable. A control system is used to control operating parameters including velocity, altitude, and pose of the aerial vehicle, and a length and orientation of the cable extending between the aerial vehicle and the parcel.

Abstract: A system for time series analysis using attention models is disclosed. The system may capture dependencies across different variables through input embedding and may map the order of a sample appearance to a randomized lookup table via positional encoding. The system may capture capturing dependencies within a single sequence through a self-attention mechanism and determine a range of dependency to consider for each position being analyzed. The system may obtain an attention weighting to other positions in the sequence through computation of an inner product and utilize the attention weighting to acquire a vector representation for a position and mask the sequence to enable causality. The system may employ a dense interpolation technique for encoding partial temporal ordering to obtain a single vector representation and a linear layer to obtain logits from the single vector representation. The system may use a type dependent final prediction layer.

Abstract: The disclosure provides a convolution operation accelerator and a convolution operation method and belongs to the field of microelectronic devices. Input data of each word line may be subjected to a multiply-accumulate operation together with two upper and lower layers of convolution kernel units, so that natural sliding of the convolution kernel units in a y direction in two-dimensional input is achieved. The oblique bit lines and multiple copies of a convolution kernel in each layer of a non-volatile memory array may enable a multiplication operation between one piece of input data and convolution kernel data at different positions in the same convolution kernel. In this way, the natural sliding of the convolution kernel units in an x direction in the two-dimensional input is achieved.

Abstract: A capacitive wireless charging system for use with a vehicle includes a roadway-side capacitive charging pad configured to be embedded in a roadway and to form a capacitive electrical connection with a vehicle-side capacitive charging pad for wirelessly transferring power to charge a vehicle battery when the vehicle is on the roadway, a power conditioning circuit configured to be positioned next to the roadway and to condition power received from a power source, and a plurality of conductors configured to be at least partially embedded in the roadway and to electrically connect the power conditioning circuit and the roadway-side capacitive charging pad, such that the plurality of conductors form a roadway-side matching network for the capacitive electrical connection without discrete inductors and capacitors.

Abstract: The invention provides a method and a system for generating a polarized propagation-invariant light field. The system includes a laser source, a spatial light modulator, a computer, a first lens, a shading element, a first quarter-wave plate, a second quarter-wave plate, a second lens, and a beam combining element. In the present invention, two Laguerre-Gaussian mode beams that satisfy a particular Gouy order relationship are generated, and orthogonal even polarization is applied to the two Laguerre-Gaussian mode beams. The two Laguerre-Gaussian mode beams are then focused onto a Ronchi grating to be stably combined into polarized propagation-invariant light field. The light field generated in the present invention simultaneously has linear polarization, elliptical polarization, and circular polarization in a cross section of the light field, and in a propagation process of the light field in free space, apart from normal spot size scaling, polarization distribution remains unchanged.

Abstract: Disclosed is a floating platform integrating wave attenuation with marine energy power generation and a working method thereof, the platform includes a breakwater, a tuned damping wave energy converter, and an offshore floating wind turbine. The breakwater includes double-cylindrical-boxes and connecting bulkheads, and a moon pool area is formed in a middle of the breakwater; the offshore floating wind turbine and the tuned damping wave energy converter are both connected to the breakwater through a connecting rod. A circular groove is formed on an inner side of each of the connecting bulkheads of the breakwater. The breakwater provides the floating base and power generation environment for the offshore floating wind turbine and the tuned damping wave energy converter, and a plurality of the tuned damping wave energy converters can be disposed, and are evenly distributed beneath the offshore floating wind turbine.

Abstract: The invention discloses a plant thermo-sensitive male sterile gene mutant tms15 and uses thereof. The nucleotide sequence of the plant thermo-sensitive male sterile gene mutant tms15 is SEQ ID No. 1. The inventor screened the thermo sensitive genic male sterile mutant tms15 by EMS mutagenesis of Zhonghua 11, which showed a male sterile phenotype under high temperature conditions (>28° C.) and restored fertility under low temperature conditions (22˜24° C.). The cytological results shows that the sporogenous cells in tms15 plants proliferated excessively and the tapetum cells are also vacuolized abnormally under high temperature. The normal proliferation of sporogenous cells and the normal development of tapetal cells are restored to some extent after low temperature treatment.

Abstract: Disclosed is a tongue strengthening device that includes a handle on one end and a bulb structure on the other end. The bulb is resiliently flexible, and enables a user to exercise their tongue by repeatedly compressing and releasing the bulb. Provided is a system or kit that includes multiple tongue strengthening devices having different compression specifications that allow a patient to graduate to devices which are harder to compress as the patient gains tongue strength.

Abstract: Electrosynthesis of oxirane can include contacting a halide electrolyte with an anode and cathode respectively located in anodic and cathodic compartments; supplying olefin reactants into the electrolyte in the anodic compartment, such that the anode generates ethylene chlorohydrin; withdrawing a loaded anodic solution comprising ethylene halohydrin from the anodic compartment, and a loaded cathodic solution comprising OH? ions from the cathodic compartment; and mixing the loaded anodic solution with the loaded cathodic solution under conditions to react ethylene halohydrin with OH— to produce oxirane. The electrocatalyst can include iridium oxide on a titanium substrate, with the iridium oxide provided as nanoparticles on a titanium mesh, and the electrolyte can be aqueous KCl.

Abstract: An electrically assisted forming process and device for a high-strength metal alloy thin-walled pipe includes a die sleeve, wiring terminals, a pulse power supply, a die seat, sealing baffle plates, a drawing die, and a cooling water circulation chamber. A process for forming a high-strength metal alloy thin-walled pipe includes first, graphite or fusible metal, i.e., an aluminum rod, is introduced into a high-strength metal alloy pipe to be drawn to fill the whole pipe; and then, pulse current is introduced into a plastic deformation area of the thin-walled pipe. A cooling device can be provided to achieve a good cooling effect. The thin-walled pipe with corresponding length is cut according to a production requirement after processing is completed, and annealing treatment is performed in a vacuum heat treatment furnace.

Abstract: An ethyl 2-[9-(2-hydroxypyridin-3-yl)-3,6-diphenyl-1,8-dioxo-3,4,9,10-tetrahydroacridine-10-yl]-acetate compound, its synthesis, and its use as an antimicrobial agent.

Abstract: Disclosed are a proton exchange membrane made of a crystalline sulfonated polyimide block copolymer, a preparation method and use thereof. The crystalline sulfonated polyimide block copolymer has a chemical structure as shown in Formula (I), in which Ar1 group is an aromatic group containing a naphthyl group, Ar2 group is an aromatic group containing at least one sulfonate group, and x is in the range of 5-100, m is in the range of 1-200, and n is in the range of 5-500.

Abstract: The present disclosure is directed to an optically active medium comprising dye aggregates and optionally a nucleotide oligomer or other nucleotide-based architecture, which may be used in in optical devices, in particular nonreciprocal devices (i.e., devices in which energy flows in one direction only), that can respond to differences in the polarization of light. An analysis is presented of the energy levels and the strengths of the optical transitions (changes in energy states) for a three-chromophore (dye) aggregate in which the chromophores are coupled with a J-like (i.e., end-to-end) stacking. Specific devices and methods of use are also disclosed herein.

Abstract: A multi-layered oil sorbent formed from two superposed polyolefin thin films and a polypropylene (PP) fibrous thin sheet sandwiched between the two superposed polyolefin thin films. Each of the two superposed polyolefin thin films include a plurality of pores defined therethrough and a plurality of swellable cavities extending from a surface thereof. In an embodiment, the cavities of each two superposed polyolefin thin films extend from a respective polyolefin film surface toward the PP fibrous thin sheet. The two superposed polyolefin thin films with the PP fibrous thin sheet sandwiched therebetween are sealed together by a zigzag-shaped heat seal. The plurality of cavities on the surface of the multi-layered sorbent can swell when contacted with oil. The cavities coupled with the zigzag-shaped seal maximize the available volume for uptake of oil and organic pollutants from water.

Abstract: A hydrolysate compound protein for larval largemouth bass (Micropterus salmoides) and use thereof for aquatic animal feeds. The micro-diet was formulated with the following components: 72-74 parts by weight of a hydrolyzed protein pre-mixture, 3-5 parts by weight of mixed fish soluble meal, 4-6 parts by weight of gluten flour, 2-4 parts by weight of sodium caseinate, and 0.4-0.6 parts by weight of a yeast hydrolysate, where the hydrolyzed protein pre-mixture includes white fish meal, fermented soybean meal, shrimp meal and blood meal with the weight ratio of 58-62:5-7:4-6:2-3. The compound protein is obtained by fully pulverizing the foregoing components, passing through a 100-mesh sieve, fully mixing in proportion, and being hydrolyzed with neutral protease and keratinase.

Abstract: Provided herein are methods for selecting a subject with a seizure disorder for treatment, as well as methods of treating the subject, determining the efficacy of the treatment, and adjusting the treatment dosage and frequency. In some aspects, provided herein are methods of treating seizures in a subject by administering to the subject a composition comprising bacteria of the Akkermansia (Akk) and Parabacteroides (Pb) genera.

Abstract: A multi-lead electrocardiogram (ECG) signal classification method based on self-supervised learning relates to the technical field of ECG signal classification. The method includes: processing an original signal through different data augmentation methods, designing an appropriate encoder module, extracting a feature of an ECG signal through a large amount of easily available unlabeled data such that an encoder learns more class information of the ECG signal, fine-tuning the model encoder with a small amount of labeled data for feature optimization, and continuously optimizing a parameter of a feature extractor by training a model such that a generated feature well reflects a structure and information of input data. Through self-supervised learning, the method reduces obstacles caused by performing ECG signal classification through a large amount of expensive manually labeled data, improving the generalization ability of the model.