Abstract: A bi-layered superhydrophobic membrane includes top and base layers formed from polypropylene. The bi-layered superhydrophobic membrane can have a thickness ranging from about 100 ?m to about 1 mm. When subjected to oil-water emulsion separations, the superhydrophobic membrane can achieve an organic solvent flux of 14,000 Lm?2h?1 with a 96% water rejection. The bi-layered superhydrophobic membrane can be effectively used for water filtration, providing both selectivity and permeability, while offering an eco-friendly solution for reuse of polypropylene plastic waste.

Abstract: Provided is a use method of a gravity double-tube microwave-assisted grinding device capable of controlling ore thickness. The method comprises the following steps: step 1, estimating a metal mineral content of ores; step 2, calculating a penetration depth of the ores, step 3, determining a feeding size; step 4, determining a material thickness; step 5, determining a discharging speed Vp0; step 6, determining whether the gravity double-tube microwave-assisted grinding device capable of controlling ore thickness adopts a single-tube structure or a double-tube structure; and step 7, conveying the ores, performing heating, optimizing material parameters of the ores, and optimizing microwave parameters.

Abstract: The present disclosure relates to a dual-band antenna array with fan beam and pencil beam. The antenna comprises a substrate and an antenna array arranged on the surface of the substrate, a first antenna element and a second antenna element are cascaded in an x-axis direction by a filter phase-shift line so as to form a subarray. A pair of T-shaped monopoles are symmetrically placed along the x axis at a certain distance above and below each of the first and second antenna elements, respectively, and a rectangular slot is embedded in the upper edge of the second antenna element to achieve good impedance matching. The second antenna element generates a fan beam at one frequency point or frequency band to have the performance of a wide beam, and generates a pencil beam at another frequency point or frequency band to have the performance of a narrow beam.

Abstract: Engineered promiscuous biotin ligases and methods of using them in proximity labeling are described. In particular, the invention provides novel biotin ligase variants having increased promiscuous biotinylation activity capable of proximity labeling of proteins in live cells in as little as 10 minutes.

Abstract: Devices and methods for smartphone impostor detection using behavioral and environmental data are provided. Impostors are attackers who take control of an electronic device (e.g., a smartphone) and gain access to confidential and private information of a legitimate user. Embodiments described herein propose a defense-in-depth mechanism to detect impostors quickly with simple deep learning algorithms, which can achieve better detection accuracy than previous works. Embodiments then consider protecting the privacy of the behavioral and/or environmental data (e.g., collected by one or more sensors) of a user by not exposing it outside the protected device. A recurrent neural network (RNN)-based deep learning algorithm is proposed which uses only sensor data of the legitimate user to learn their normal behavior. Prediction error distribution (PED) is used to enhance the detection accuracy.

Abstract: Provided is a method of processing elastic wave data, the method including selecting some elastic wave traces as a first label from among a plurality of elastic wave traces received without at least some elastic wave traces missing from whole elastic wave data, training an interpolation model on a machine learning basis by using at least two or more of remaining elastic wave traces except for the first label and the first label, restoring the at least some elastic wave traces missing from the whole elastic wave data by using the trained interpolation model, training an extrapolation model on a machine learning basis by using an elastic wave trace selected as a second label from among a plurality of elastic wave traces included in whole restored elastic wave data and at least two or more of remaining elastic wave traces except for the second label, and generating an additional elastic wave trace, which have not been included in the whole elastic wave data, by using the trained extrapolation model.

Abstract: A modified bitumen includes bitumen and a bitumen modifier. The bitumen modifier includes composite particles. The composite particles include aluminosilicate nanostructures defining nanopores and micropores and paraffin wax adhered to surfaces of the aluminosilicate nanostructures. Modifying bitumen includes combining bitumen and the bitumen modifier.

Abstract: A single-core polarization-maintaining dispersion compensation micro-structured optical fiber comprises a fiber core, a first layer of air holes surrounding the fiber core, the cladding defects on the x-axis, the cladding defects on the y-axis, and the cladding. The air holes in the fiber cross section are arranged in the equilateral triangle lattice. Three consecutive air holes are omitted to form a solid area. This solid area is the fiber core. There are two cladding defects along the x-axis. Their centers are respectively located at the two vertices of the hexagon on the x-axis, which is formed by the fourth air hole ring from the core exclusive the central air hole. Each cladding defect along the x-axis contains 7 air holes and goes through from the core by only 1 layer of air holes. There are also two cladding defects along the y-axis.

Abstract: An electron transport includes a metal co-doped zinc oxide compound having a formula MnxCo0.015Zn1-xO, wherein x has a value in a range of 0.001 to 0.014. The electron transport material of the present disclosure may be used in a perovskite solar cell.

Abstract: A cooling system for a photovoltaic panel including micro flat heat pipes (HP) integrated with thermoelectric generators (TEG) and a cooled water reservoir for cooling the working fluid in heat pipes. The cooled water in the reservoir is pumped from the condensate pan of an air conditioner. Experimental results show that cooling system reduced the average temperature of the panel by as much as 19° C. or 25%. Further, the output power of the photovoltaic panel increased by 44% when the photovoltaic panel was used in a very hot climate (30-40° C.). An additional two watts of power was generated by the TEGs.

Abstract: The present disclosure relates to the field of directional solidification, and in particular, to an apparatus, method, and process for directional solidification by liquid metal spraying enhanced cooling (LMSC). The process has the following beneficial effects: the apparatus of the present disclosure can regulate a solidification structure of a casting, refine a dendrite spacing, and reduce or avoid metallurgical defects, and can be used to prepare high-quality large-sized columnar/single crystal blades or other castings.

Abstract: Disclosed is a bio-enzyme degradable temporary plugging material and a preparation method and application thereof in the technical field of natural gas hydrate drilling and production; the preparation method of the bio-enzyme degradable temporary plugging material includes the following steps: mixing the ceramsite with an aqueous solution of 3-aminopropyl trimethoxysilane before a stirring reaction and drying to obtain modified ceramsite; and fully dispersing the modified ceramsite, ethyl cellulose, and epoxy resin in dichloromethane to obtain an oil phase; adding the oil phase into a gelatin aqueous solution and mixing uniformly; after a stirring reaction, evaporating an organic solvent, filtering, washing, and drying, to obtain the bio-enzyme degradable temporary plugging material.

Abstract: A video decoding apparatus is provided for decoding a sequence of pictures, some of which have different resolutions. The apparatus decodes, from a high-level syntax structure of the sequence, a first syntax element for specifying a reference size of pictures referring to the high-level syntax structure and a second syntax element for specifying a picture size scaled from the reference size of the picture referring to the high-level syntax structure. The apparatus predicts a current block, by modifying a sample position in a reference picture indicated by a motion vector of the current block based on the first and second syntax elements.

Abstract: Provided is a method for precipitating a starch emulsion, the method including: mixing a fermentation broth with the starch emulsion, the fermentation broth including an isolated microorganism, wherein the isolated microorganism is Leuconostoc citreum WSJ-57 deposited under an accession number of CGMCC No. 19201 in the China General Microbiological Culture Collection Center on Dec. 20, 2019.

Abstract: Disclosed herein are novel carborane hydroxamic acid matrix metalloproteinase (“MMP”) inhibitors and agents bearing borane-containing moieties and methods for their use in treating or preventing a disease, such as cancer and rheumatoid arthritis. In particular, disclosed herein are compounds of Formula (I) and pharmaceutically acceptable salt thereof: Formula (I) wherein the substituents are as described.

Abstract: The present disclosure provides a removable eyewear shielding device, an eyewear comprising a removable eyewear shielding device, and methods of uses thereof for reducing eye radiation exposure, reducing ipsilateral brain radiation exposure, reducing FGI-induced lens opacification, reducing cataract development, or protecting an eye or ipsilateral brain from radiation exposure.

Abstract: Provided is a method for producing an artificial recombinant virus of the family Reoviridae, the method comprising the steps of: (1) introducing a FAST protein expression vector and/or a capping enzyme expression vector into host cells; (2) introducing a vector containing expression cassettes for individual RNA genome segments of a virus or introducing a set of single-stranded RNA transcripts from the expression cassettes into host cells; and (3) culturing the host cells. The method of the present invention allows more efficient production of an artificial recombinant virus of the family Reoviridae as compared with conventional methods and allows artificial recombinant rotavirus production without using a helper virus.

Abstract: Provided is a marine current energy generating device for a deep sea cage. The marine current energy generating device includes a vortex vibration generating portion, where the vortex vibration generating portion is used for generating vortex vibration on a side facing away from a marine current; power generating portions, where several nano friction generators are arranged in the power generating portions, and the several nano friction generators generate power by using the vortex vibration generated by the vortex vibration generating portion and are electrically connected to each other; a guide portion, where the guide portion is used for making the vortex vibration generating portion perpendicular to a direction of the marine current all the time; and corrosion protection assemblies, where the corrosion protection assemblies are arranged at joints of the vortex vibration generating portion to the power generating portions and the guide portion.

Abstract: A detection kit suitable for detecting a target in a sample is provided. The detection kit includes a syringe, a first reaction container, a second reaction container, and a plurality of fluorescent substances. The syringe is loaded with first organic solvent. The first reaction container is connected to the syringe and is loaded with the sample. The second reaction container is connected to the first reaction container and is loaded with second organic solvent. The fluorescent substances are dispersed in the second organic solvent and emit fluorescence. When the target in the sample is dissolved in the first organic solvent and reacts with the fluorescent substances in the second organic solvent, the fluorescence emitted by the fluorescent substances is quenched.

Abstract: An embodiment converter includes a magnetic material, a first circuit including a first winding surrounding the magnetic material and a clamp circuit configured to reset a power conversion operation, the first circuit being configured to convert power received from a first input voltage source to provide the converted power to a load, and a second circuit including a second winding surrounding the magnetic material, the second circuit being configured to convert power received from a second input voltage source to provide the converted power to the load and to perform the power conversion operation being reset by the clamp circuit.