Abstract: A transparent ultrasound transducer device for multi-mode optical imaging on a target is provided. The device includes a transparent piezoelectric transducer, one or more wires, and an optical lens. The transparent piezoelectric transducer of a first acoustic impedance is configured to receive acoustic waves from the target. The transparent piezoelectric transducer has a first surface and a second surface. The first surface and the second surface are coated with transparent electrically conductive coatings. The optical lens is contacted with and optically coupled to the first surface of the transparent piezoelectric transducer. The optical lens is made of a material with a second acoustic impedance, and the first and second acoustic impedances are substantially similar to minimize an acoustic impedance mismatch such that sensitivity of the device is improved.

Abstract: A method of preparing antimicrobial 3D-printed material with antimicrobial agents integrated with the 3D-printed material. The 3D-printed material fabricated with the method of the present disclosure includes antimicrobial agent (s) fully integrated throughout the product and display antimicrobial effect throughout the product, which is resistant to daily wear and tear.

Abstract: The disclosure discloses an integrated automatic sea cucumber cooking and soaking system, which belongs to the technical field of sea cucumber processing.

Abstract: The disclosure relates to a vertical Hopkinson pressure bar test device and a test method. The device comprises a guide cylinder, an incident bar, a transmission bar, a buffer bar and a striker, and further comprises a base; side support plates arranged vertically and upwards are provided symmetrically on two sides of the base, a horizontal first lateral support plate is provided at the top between the side support plates on the two sides, three groups of horizontal second lateral support plates are provided below the first lateral support plate sequentially between the side support plates on the two sides, and each group is provided with a clamping mechanism clamping a corresponding incident bar, transmission bar or buffer bar; the surfaces of the incident bar is pasted with a first strain gauge pad and the transmission bar is pasted with a second strain gauge pad.

Abstract: A technology for inhibition of myopia progression adapted to the RPR of the wearer is provided. A spectacle lens and related technology are provided that include a base area that causes a beam that enters through an object-side surface to exit through an eye-side surface and converge on a retina via the eye, and a plurality of defocus areas that each contact the base area and have a characteristic whereby a beam that passes through at least a portion of the defocus area is incident on the retina as a diverging ray, and, in not less than half of the plurality of defocus areas, at least one of a defocus power and a size of each defocus area is set, so as to compensate for a change in retinal spot size due to relative peripheral refraction (RPR) that depends on an eccentricity angle of the eye of the wearer.

Abstract: A device for decomplexation and enhanced removal of copper based on self-induced Fenton-like reaction constructed by electrochemistry coupled with membrane separation is disclosed. The device includes a reactor, two electrocatalytic anodes capable of generating hydroxyl radicals, an electrocatalytic cathode membrane assembly, a direct current power supply, an aeration system, an inlet pipe and an outlet pipe. The device of the present invention has a simple construction. Using this device to treat industrial wastewater containing copper complexes under specific conditions allows the decomplexation and the removal of the industrial wastewater containing the copper complexes to be simultaneously realized at a low consumption and a high efficiency. The coupling of electrochemistry with membrane separation can be achieved to protect the cathode from being contaminated by pollutants in the sewage and prolong the service life of the electrode.

Abstract: Provided herein are methods for preparing metal coated textile substrate by ultrasonic irradiation deposition processes and products thereof.

Abstract: A spectacle lens can inhibit ametropia of the eyes and ensure full visibility. The spectacle lens comprises: first refraction areas and second refraction areas. Each first refraction area has a first refraction force that may be based on a prescription for correcting the ametropia of the eyes. Each second refraction area has a refraction force different from the first refraction force and may function to focus images on the positions except the retina of the eyes, to inhibit the development of the ametropia. Near the central part of the lens, the second refraction areas form a plurality of independent island-shaped areas, and the first refraction areas form the areas beyond the areas of the second refraction areas.

Abstract: The present invention relates to a method for manufacturing a diamond substrate, and more particularly, to a method of growing diamond after forming a structure of an air gap having a crystal correlation with a lower substrate by heat treatment of a photoresist pattern and an air gap forming film material on a substrate such as sapphire (Al2O3). Through such a method, a process is simplified and the cost is lowered when large-area/large-diameter single crystal diamond is heterogeneously grown, stress due to differences in a lattice constant and a coefficient of thermal expansion between the heterogeneous substrate and diamond is relieved, and an occurrence of defects or cracks is reduced even when a temperature drops, such that a high-quality single crystal diamond substrate may be manufactured and the diamond substrate may be easily self-separated from the heterogeneous substrate.

Abstract: A squatting bionic device of a human lower-limb joint is provided. In the squatting bionic device, a vertical support plate is provided on the device with a sliding table, which is driven by a first motor to slide up and down in a height direction of the vertical support plate or to be fixed on the vertical support plate. A horizontal fixed shaft is fixed on the sliding table. The middle of the fixed shaft is connected with a femoral shaft through a first universal joint. A lower end of the femoral shaft is fixedly connected with a lower femur simulation block. A wire rope is wound around a rotation shaft of a second motor fixed on a base. One end of the wire rope is fixed on the rotation shaft of the second motor, and the other end thereof extends upwards.

Abstract: A closed-loop detecting method using an inverted index-based key frame selection strategy, storage media and apparatus are provided. The method includes following steps: step I: acquiring image information at a current position, processing the image information to extract corresponding image features therefrom and solve a camera pose; step II: capturing image features successively during movement of a robot, as consecutive image frames, performing, on the consecutive image frames, an indexing, in which the inverted index-based key frame selection strategy is introduced into a key frame selection strategy to supplement key frames which are prone to be missed in a conventional forward indexing during a curvilinear movement of the robot; and step III: performing closed-loop detection and correction of accumulative errors based on image features carried by key frames.

Abstract: A method for optogenetics experiments, based on wavefront shaping and including: calculating the transmission matrix between an input end and an output end of the multimode fiber under a fixed shape; implanting the output end into an intracranial space of an experimental subject; and performing wavefront compensation to a light to be input into the input end, according to the spatial position of the optical stimulation and the transmission matrix of the multimode fiber, to form a compensated expanded light, and inputting the compensated expanded light from the input end into the multimode fiber, such that the compensated expanded light, after being transmitted by the multimode fiber to the output end and output from the output end, is capable of focusing at the spatial position of the optical stimulation.

Abstract: A nanofiltration membrane with a high flux for selectively removing hydrophobic endocrine disrupting chemicals and a preparation method thereof are provided. The method includes the following steps: immersing a porous support layer into a first solution, removing excess droplets from a surface of the support layer after taking the support layer out of the first solution, and then immersing the support layer attached with the first solution into a second solution for an interfacial polymerization reaction, followed by washing after completion of the reaction to obtain the subject nanofiltration membrane. The first solution is an aqueous solution containing a polyamine monomer and an acid binding agent, and the second solution is an organic solution containing an acid chloride monomer and a metal-organic framework.

Abstract: A method and an apparatus for sending key-value pair data are provided, and a method and an apparatus for collecting key-value pair data are provided. In the method, first target key-value pair data is perturbed as first perturbed key-value pair data, so that a data collector can determine, based on a value a or b of a first value in the first perturbed key-value pair data, whether to include the entire first perturbed key-value pair data into the statistical result in a process of generating the statistical result. In this way, an association between a value and a key in the key-value pair data is reserved in the first perturbed key-value pair data, which improves availability of the first perturbed key-value pair data. That is, a statistical result generated by the data collector based on the first perturbed key-value pair data is closer to a statistical result generated based on original user key-value pair data.

Abstract: A transparent ultrasound transducer device for multi-mode optical imaging on a target is provided. The device includes a transparent piezoelectric transducer, one or more wires, and an optical lens. The transparent piezoelectric transducer of a first acoustic impedance is configured to receive acoustic waves from the target. The transparent piezoelectric transducer has a first surface and a second surface. The first surface and the second surface are coated with transparent electrically conductive coatings. The optical lens is contacted with and optically coupled to the first surface of the transparent piezoelectric transducer. The optical lens is made of a material with a second acoustic impedance, and the first and second acoustic impedances are substantially similar to minimize an acoustic impedance mismatch such that sensitivity of the device is improved.

Abstract: A high-performance thin-film composite polyamide membrane upcycled from a substrate fouled with a biopolymer and a preparation method thereof are provided. The method includes fouling the substrate preferably with the biopolymer to obtain a composite of the substrate and a biopolymer foulant layer; then immersing the composite into a first solution formed by dissolving a polyamine monomer in water, followed by taking the composite out of the first solution and removing excess droplets from a surface of the composite; then immersing the composite treated in the previous step into a second solution formed by dissolving an acyl chloride monomer in n-hexane for interfacial polymerization to form a rejection layer on the surface of the composite; and after completion of the reaction, taking the composite out of the second solution, followed by drying and heat treatment, to obtain the target polyamide membrane.

Abstract: The present invention relates to a quick quantitative analysis method and analyzer for mixture concentration information. A quick quantitative analysis method for a mixture based on spectral information includes: collecting a sample of a mixture solution, and injecting into a DAD to obtain DAD data; then, calculating a spectral library by a quick qualitative analysis method based on a vector error algorithm to obtain a spectral error vector; determining a spectral curve of a component included in the data corresponding to the sample, according to a value of the error vector; and calculating a content flag value of each component in the sample and concentration information of each substance.

Abstract: A flexible electrocatalytic membrane for removing nitrate from water, a preparation method and use thereof are provided. The method of the present invention includes dropwise adding an aramid fiber solution into deionized water to prepare an aramid nanofiber sol, then reacting an ethanol solution containing 3,4-ethylenedioxythiophene and ferric nitrate with the aramid nanofiber sol to prepare a conductive aramid nanofiber sol, and finally dropwise adding MXene nanosheets ultrasonically pretreated by a tetramethylammonium hydroxide solution into the conductive aramid nanofiber sol to prepare the flexible electrocatalytic membrane. The prepared flexible electrocatalytic membrane possesses good mechanical strength and flexibility, and can not only effectively remove nitrate but also avoid failure of electrocatalytic materials due to surface fouling in the process of electrocatalytic reduction of nitrate, and thus has a long service life.

Abstract: A medical device that includes a carrier member, one or more operative components disposed in the carrier member, an optical fiber at least partly disposed in the carrier member, and at least one fiber Bragg grating (FBG) sensor array associated with the optical fiber and disposed in the carrier member. The carrier member includes an insertion end and side walls that contact the subject's body during positioning of the carrier member in the subject's body. The at least one FBG sensor array measures contact forces at one or both of the insertion end and along the side walls of the carrier member during positioning of the carrier member in the subject's body. A multi-core optical fiber configured for use in a medical device for positioning in a subject's body is also provided. A system and method for guiding positioning of a medical device in a subject's body is also provided.

Abstract: The present disclosure describes a system, method and software applications for predicting the KAM of a subject for a plurality of gait cycles of a subject. At least one sensor attachable adjacent to the ankle of at least one leg of the subject provides accelerometer and gyroscopic data for the plurality of gait cycles. A processing means receives subject parameters and accelerometer and gyroscopic data from the at least one sensor for evaluation by a neural network of predicted KAM values for the plurality of gait cycles of the subject. The neural network is configured via determining KAM values for each of the plurality of subjects from measurements during a plurality of gait cycles and other parameters.