Abstract: An additive manufacturing device utilizing an electron beam and laser integrated scanning comprises: a vacuum generating chamber (1); a worktable means having a forming region at least provided in the vacuum generating chamber (1); a powder supply means configured to supply a powder to the forming region; an electron-beam emission focusing and scanning means (6) and an laser-beam emission focusing and scanning means (7) configured in such a manner that a scanning range of the electron-beam emission focusing and scanning means (6) and a scanning range of the laser-beam emission focusing and scanning means (7) cover at least a part of the forming region; and a controller configured to control the electron-beam emission focusing and scanning means (6) and the laser-beam emission focusing and scanning means (7) to perform a powder integrated-scanning and forming treatment on the forming region.

Abstract: A thermionic emission device comprises a first electrode, a second electrode, a single carbon nanotube, an insulating layer and a gate electrode. The gate electrode is located on a first surface of the insulating layer. The first electrode and the second electrode are located on a second surface of the insulating layer and spaced apart from each other. The carbon nanotube comprises a first end, a second end opposite to the first end, and a middle portion located between the first end and the second end. The first end of the carbon nanotube is electrically connected to the first electrode, and the second end of the carbon nanotube is electrically connected to the second electrode.

Abstract: A nano manipulator comprises a base and a clamping structure. The clamping structure comprises two nanofiber actuators located on the base and spaced from each other. Each of the two nanofiber actuators comprises a composite structure and a vanadium dioxide layer. The composite structure comprises a carbon nanotube wire and an aluminum oxide layer. The aluminum oxide layer is coated on a surface of the carbon nanotube wire, and the aluminum oxide layer and the carbon nanotube wire are located coaxially with each other. The vanadium dioxide layer is coated on a surface of the composite structure, and the vanadium dioxide layer and the composite structure are located non-coaxially with each other.

Abstract: A photocurrent scanning system comprises a laser generating device, a focusing device, a displacement adjustment device, a bias supply device, and a measuring device. The laser generating device is used to emit a laser. The focusing device is used to focus the laser to a surface of a sample. The displacement adjustment device is used to place the sample and adjust a position of the sample, to make the laser focused onto different parts of the surface of the sample. The bias supply device is used to supply a voltage to the sample. The measuring device is used to measure a photocurrent signal flowing through the sample.

Abstract: An image-guided radiation therapy apparatus comprises: a high-energy ray source configured for radiation therapy of an object; and a KV ray source, a first and second PET detectors, and a CT detector for KV CT and PET imaging for guiding the radiation therapy. The KV ray source is placed on, or at an inner or outer side of the first PET detector; the second PET detector and the CT detector are configured to receive the KV ray to perform KV CT imaging; the PET detectors are further configured to receive gamma ray emitted by the object to perform PET imaging.

Abstract: A method for making blackbody radiation source is provided. A blackbody radiation cavity and a carbon nanotube array located on a substrate are provided. A black lacquer layer is coated on an inner surface of the blackbody radiation cavity. A pressure is applied to the carbon nanotube array to form a carbon nanotube paper. The carbon nanotube paper is placed on the black lacquer layer. The substrate is peeled off to make the carbon nanotube paper bond to the black lacquer layer. An adhesive tape is placed on the carbon nanotube paper. And then the adhesive tape peeling off to separate carbon nanotubes in the carbon nanotube paper from the adhesive tape and bond to the black lacquer layer, the carbon nanotubes vertically aligned and forms the carbon nanotube array.

Abstract: A method and a system for controlling a distributed power generation system are disclosed. The distributed power generation system includes N sub isolated three-port converters and N independent distributed DC power sources in a one-to-one correspondence to the N sub isolated three-port converters, N is a natural number greater than 1; an input-port of each of the sub isolated three-port converters is connected to the corresponding distributed DC power source, bidirectional-ports of the sub isolated three-port converters are connected in parallel to build a low voltage DC bus, and output-ports of the sub isolated three-port converters are connected in series and connected to a medium voltage DC distribution network.

Abstract: The present invention relates to a method, device and software product for converting data into a data DNA sequence and restoring the DNA sequence library into raw data, and a storage medium for storing the software product. The method for converting data into a data DNA sequence comprises: dividing data into one or more data conversion units, providing a binary sequence for each data conversion unit, and converting each data conversion unit into a data DNA sequence according to a dataDNA sequence conversion rule, thus acquiring a data DNA sequence library, which makes biological storage of data in vivo possible by constructing a data DNA library.

Abstract: The disclosure relates to a photocatalytic structure. The photocatalytic structure includes a carbon nanotube structure, a photocatalytic active layer coated on the carbon nanotube structure, and a metal layer including a plurality of nanoparticles located on the surface of the photocatalytic active layer. The carbon nanotube structure comprises a plurality of intersected carbon nanotubes and defines a plurality of openings, and the photocatalytic active layer is coated on the surface of the plurality of carbon nanotubes. The metal layer includes a plurality of nanoparticles located on the surface of the photocatalytic active layer.

Abstract: A method for making nanoporous nickel composite material comprises: providing a cathode plate and a copper-containing anode plate, electroplating a copper material layer a surface of the cathode plate; laying a carbon nanotube layer on the copper material layer, and forming an overlapped structure of the copper material layer and the carbon nanotube laye; the cathode plate and the overlapped structure are used as a cathode, and a nickel-containing anode plate is used as an anode, plating a nickel material layer on the overlapped structure to form sandwich structure; repeating steps S1 to S3 to obtain a carbon nanotube-reinforced copper-nickel alloy; rolling and annealing the carbon nanotube-reinforced copper-nickel alloy; and etching the carbon nanotube-reinforced copper-nickel alloy to form the nanoporous nickel composite material.

Abstract: A method for efficiently producing PHA comprising: inoculating PHA fermentation strains into a fermentation medium for fermentation under the condition of being capable of producing PHA through fermentation; subjecting the fermentation broth to a solid-liquid separation to obtain fermentation supernatant and thallus precipitate; breaking the cell walls of the thallus precipitate, and subjecting the wall-broken products to a plate and frame filtration to prepare PHA; pre-coating a filter cloth for the plate and frame filtration with a PHA layer; at least part of the water of the fermentation medium is PHA process wastewater. The method utilizes the PHA process wastewater as at least part of the water of the fermentation medium, and filters and separates the broken thallus with the plate and frame filtration equipment pre-coated with PHA layer to prepare PHA, thereby recycling the high-salt wastewater, reducing costs, and potentially separating PHA on a large scale for industrial production.

Abstract: Empty container identification method and system are disclosed. The method includes: obtaining customs declaration information, and finding out an vehicle declared as an empty container or an empty vehicle from the customs declaration information; performing X-ray inspection on the vehicle to acquire a transmission image of the vehicle; inputting the transmission image into an empty container identification model obtained by pre-training, so that the empty container identification model determines candidate regions of the transmission image, and performs post-processing analysis on the candidate regions to obtain an image identification result; and comparing the image identification result with the corresponding customs declaration information to determine whether or not the image identification result is consistent with the customs declaration information.

Abstract: The application relates to a reservoir chip and a method for producing the same. The method includes: scanning a three-dimensional structure of a real oil reservoir core and reconstructing the three-dimensional structure, extracting pore size distribution characteristics, analyzing formation of a pore structure of the real oil reservoir core and accumulation morphology of rock particles, extracting the morphology of main large particles in the rock particles and establishing a large particle morphology database; distributing and projecting particles in a porous medium of the reservoir chip, to obtain a picture of the reservoir chip structure; importing the picture into a drawing software, and drawing import and export regions of the reservoir chip structure to obtain a design drawing of the reservoir chip; and making the design drawing etched on a substrate and bonded with a heat-resistant glass anode to obtain the reservoir chip.

Abstract: The present invention relates to a carbon nanotube-transition metal oxide composite and a method for making the composite. The composite comprises at least one carbon nanotube and a plurality of transition metal oxide nanoparticles. The plurality of transition metal oxide nanoparticles are chemically bonded to the at least one carbon nanotube through carbon-oxygen-metal (C—O-M) linkages, wherein the metal is a transition metal element. The method for making the composite comprising the following steps: step 1, providing at least one carbon nanotube obtained from a super-aligned carbon nanotube array; step 2, pre-oxidizing the at least one carbon nanotube; step 3, dispersing the at least one carbon nanotube in a solvent to form a first suspension; step 4, dispersing a material containing transition metal oxyacid radicals in the first suspension to form a second suspension; and step 5, removing the solvent from the second suspension and drying the second suspension.

Abstract: A cavity black body radiation source is provided. The cavity black body radiation source comprises a blackbody radiation cavity, a black lacquer, and a carbon nanotube layer. The blackbody radiation cavity comprises an inner surface. The black lacquer is located on the inner surface. The carbon nanotube layer is located on a surface of the black lacquer away from the blackbody radiation cavity. The carbon nanotube layer comprises a plurality of carbon nanotubes and a plurality of microporous. A method of making the cavity blackbody radiation source is also provided.

Abstract: An energy storage device is provided which includes a supercapacitor first electrode, a supercapacitor second electrode, a first electrolyte, a metal electrode, and a hydrophobic layer. The supercapacitor first electrode, the supercapacitor second electrode, and the first electrolyte together form a supercapacitor. The metal electrode is spaced apart from the supercapacitor first electrode to form a first gap, the metal electrode and the supercapacitor second electrode form an Ohmic contact. The hydrophobic layer is located on at least one portion of a surface of the supercapacitor first electrode and/or at least one portion of a surface of the supercapacitor second electrode.

Abstract: The disclosure relates to a self-charging device for energy harvesting and storage. The self-charging device for energy harvesting and storage includes a first electrode, a second electrode spaced from the first electrode, a solid electrolyte bridging the first electrode and the second electrode, and a water absorbing structure. The water absorbing structure is located on the second electrode, absorbs water from external environment and transmits the absorbed water to the solid electrolyte.

Abstract: An organic light emitting diode includes a support body, an anode electrode, a hole transport layer, an organic light emitting layer and an electron transport layer stacked on each other in that order. The electron transport layer has a first surface and a second surface opposite to the first surface. The electron transport layer includes a polymer and a plurality of first carbon nanotubes dispersed in the polymer, and partial surface of the plurality of first carbon nanotubes is exposed from the first surface and is in direct contact with the organic light emitting layer.

Abstract: A molecular detection device is related. The device includes a carrier, a detector and a control computer. The carrier includes a substrate, a middle layer and a metal layer. The middle layer is sandwiched between the substrate and the middle layer. The detector is configured to detect molecules on a surface of the carrier. The control computer is connected to the detector and configured to analyze a detection result. The middle layer includes a base and a patterned bulge on the base, and the patterned bulge includes a plurality of strip-shaped bulges, the metal layer is on the patterned bulge.

Abstract: The disclosure relates to a hydrophobic window. The hydrophobic window includes a frame; a glass embedded in the frame; and a hydrophobic film on a surface of the glass. The hydrophobic film comprises a flexible substrate and a hydrophobic layer. The flexible substrate comprises a flexible base and a patterned first bulge layer on a surface of the flexible base. The hydrophobic layer is on the surface of the patterned first bulge layer.