Abstract: A method of making photolithography mask plate is provided. The method includes: providing a carbon nanotube composite structure, wherein the carbon nanotube composite structure comprises a carbon nanotube layer and a chrome layer coated on the carbon nanotube layer; locating the carbon nanotube composite structure on a substrate to expose partial surfaces of the substrate; and depositing a cover layer on the carbon nanotube composite structure.

Abstract: A method of making photolithography mask plate is provided. The method includes: providing a carbon nanotube layer on a substrate; depositing a chrome layer on the carbon nanotube layer, wherein the chrome layer includes a first patterned chrome layer and a second patterned chrome layer, the first patterned chrome layer is located on the carbon nanotube layer, and the second patterned chrome layer is deposited on the substrate corresponding to holes of the carbon nanotube layer; transferring the carbon nanotube layer with the first patterned chrome layer thereon from the substrate to a base, and the carbon nanotube layer being in contact with the base; and depositing a cover layer on the first patterned chrome layer.

Abstract: A method for making a field effect transistor includes providing a graphene nanoribbon composite structure. The graphene nanoribbon composite structure includes a substrate and a plurality of graphene nanoribbons spaced apart from each other. The substrate includes a plurality of protrusions spaced apart from each other, and one of the plurality of graphene nanoribbons is on the substrate and between two adjacent protrusions. An interdigital electrode is placed on the graphene nanoribbon composite structure, and the interdigital electrode covers the plurality of protrusions and is electrically connected to the plurality of graphene nanoribbons.

Abstract: Provided is a preparation method of a detector material. The present disclosure epitaxially grows a buffer layer on a surface of a gallium arsenide substrate, deposits a silicon dioxide layer on the buffer layer, and etches the silicon dioxide layer on the buffer layer according to a strip pattern by photolithography and etching to form strip growth regions with continuous changes in width. Finally, a molecular beam epitaxy (MBE) technology is used to epitaxially grow the detector material in the strip growth regions under set epitaxy growth conditions. Because of the same mobility of atoms arriving at the surface of the substrate, numbers of atoms migrating to the strip growth regions are different due to different widths of the strip growth regions, such that compositions of the material change with the widths of the strip growth regions or a layer thickness changes with the widths of the strip growth regions.

Abstract: A method for controlling hybrid scanning based on a miniature reflecting device, which includes: loading parameters for determinant scanning and circular scanning, setting a scanning start point, and performing determinant scanning; performing low-pass filtering on received sampling data to filter an outlier in a sampling process, and performing singular value determining, to determine whether there is a valid connected domain within a scanning field of view; determining, as a target of interest, a valid connected domain with a maximum quantity of singular values, and obtaining a geometric center of the target of interest by calculating an average value of driving voltages corresponding to the singular values; performing circular scanning by using the geometric center as a scanning center, determining, in a process of scanning an outermost ring, whether singular values are centrosymmetrically distributed on the ring, to fine-tune the scanning center till the singular values are centrosymmetrically distributed

Abstract: Provided is a preparation method of a detector material. The present disclosure epitaxially grows a buffer layer on a surface of a gallium arsenide substrate, deposits a silicon dioxide layer on the buffer layer, and etches the silicon dioxide layer on the buffer layer according to a strip pattern by photolithography and etching to form strip growth regions with continuous changes in width. Finally, a molecular beam epitaxy (MBE) technology is used to epitaxially grow the detector material in the strip growth regions under set epitaxy growth conditions. Because of the same mobility of atoms arriving at the surface of the substrate, numbers of atoms migrating to the strip growth regions are different due to different widths of the strip growth regions, such that compositions of the material change with the widths of the strip growth regions or a layer thickness changes with the widths of the strip growth regions.

Abstract: A high-dynamic-range hybrid solid-state lidar system, which is based on a transponder array module, includes a transmitting system, a transceiver integrated optical system, a one-dimensional scanning device, a detecting system, and an information processing system. An information processing control circuit and a gain control module increase a total amplification factor, in a single timing period, of a gain circuit over time, thereby alleviating an echo signal intensity distortion, and expanding a dynamic ranging range. The system uses the one-dimensional scanning device and the transceiver integrated optical system composed of a circulator, a lens set, and an optical fiber array, so that the optical system is separated from an avalanche photo diode (APD) detector, and focusing is not required. A temperature of a linear APD array is monitored in the detecting system to adjust a reverse bias voltage of an APD correspondingly and alleviate unstable gain caused by a temperature change.

Abstract: Disclosed are an omnidirectional ghost imaging method and an omnidirectional ghost imaging system based on the mechanism of bio-inspired retina-like. According to the application, the logarithmic polar mapping characteristic of the bio-inspired retina-like structure is utilized to generate an annular pattern sequence of the bio-inspired retina-like, and the pattern sequence is utilized to modulate a light source. After being reflected by the target around the curved mirror, the light is projected onto the curved mirror and diffusely reflected. According to the reversible characteristics of the optical path, the light after diffuse reflection is reflected to the original light source by the half mirror and half lens, and the reflected light intensity with target information is received by the bucket detector. The reflected light intensity measurement value with target information is correlated with the annular pattern sequence of bio-inspired retina-like used for modulating the light source.

Abstract: A method for controlling a deformable mirror surface shape based on a radial primary function processes samples of a neural network training set, obtains elements of the neural network training set, characterizes the complex surface shape of the deformable mirror in each sample by using a radial primary function, takes characterization parameters of the surface shape in the each sample as an input of a neural network, and trains the neural network by taking a voltage of each piezoelectric ceramic corresponding to the complex surface shape as a corresponding output of the neural network. Training times of the neural network are consistent with a number of the samples. Finally, the trained neural network is obtained to verify the training effect of the neural network. According to the characterization parameters of the required surface, the neural network is used to control the deformable mirror to generate the required surface.

Abstract: A transient digital moire phase-shifting interferometric measuring device and method for a surface shape of an optical element solves a defect that an instantaneous vibration resistance needs to be sacrificed for a measurement range when using a two-step carrier splicing method, and expands the measurement range of a digital moire phase-shifting method while retaining instantaneous anti vibration characteristics of the digital moire phase-shifting method. The transient digital moire phase-shifting interferometric measuring device includes a light source, a beam splitter, a reference lens, a first polarization grating, a measured lens, a second polarization grating, a first imaging objective lens, a first camera, a second imaging objective lens and a second camera. Different carriers are loaded through a spectral performance of a polarization grating, and the polarization grating is used to separate two beams of an interference light, and two actual interference patterns are obtained at a same time.

Abstract: An air hockey tabletop assembly comprising at least two segments, each defining a respective portion of an air hockey playing surface, the assembly being configurable between: an assembled state wherein the segments are joined and supported by a table so as to define the playing surface; and a disassembled state wherein each segment is removable from the table.

Abstract: A method for controlling hybrid scanning based on a miniature reflecting device, which includes: loading parameters for determinant scanning and circular scanning, setting a scanning start point, and performing determinant scanning; performing low-pass filtering on received sampling data to filter an outlier in a sampling process, and performing singular value determining, to determine whether there is a valid connected domain within a scanning field of view; determining, as a target of interest, a valid connected domain with a maximum quantity of singular values, and obtaining a geometric center of the target of interest by calculating an average value of driving voltages corresponding to the singular values; performing circular scanning by using the geometric center as a scanning center, determining, in a process of scanning an outermost ring, whether singular values are centrosymmetrically distributed on the ring, to fine-tune the scanning center till the singular values are centrosymmetrically distributed

Abstract: The present invention discloses a liquid air storage device, including a storage tank, a gas circulation outlet pipe, a gas circulation inlet pipe, and a pump. An input end of the gas circulation outlet pipe communicates with the lower part of an inner cavity of the storage tank, an output end of the gas circulation outlet pipe communicates with an input end of the pump, an output end of the pump communicates with an input end of the gas circulation inlet pipe, and an output end of the gas circulation inlet pipe communicates with the upper part of the inner cavity of the storage tank. The present invention further discloses a liquid air storage method and an air liquefaction apparatus that use the foregoing liquid air storage device.

Abstract: A configurable butt for a cue stick comprising a body comprising an elongate chamber having an internal thread and a movable weight coaxially located within the elongate chamber and having an external thread, the movable weight being threadingly coupled to the internal thread of the elongate chamber. An internal shaft extends through the movable weight is adapted to rotate the movable weight within the internally threaded chamber thereby causing the movable weight to move between respective ends of the elongate chamber by virtue of the threaded coupling for adjusting a centre of gravity of the cue stick. An indicator arrangement is coupled to the internal shaft and adapted to provide an indicate of the location of the movable weight within the elongate chamber.

Abstract: A kind of quinoline compounds as formula A, pharmaceutical accepted solvates, optical isomers or polymorphisms thereof. The intermediates of formula D. in which, R1, R2 and R3 is independently H, halo or the subustitents of formula H, in which, R is H, halo, C1˜C4alkyl, C1˜C4alkoxyl. The preparation methods and the uses for the manufacture of a medicament of inhibiting the HMG CoA reductase and treating the diseases relating to the high blood fat. Compared with the fluvastatin, rosuvatatin, pitavastatin disclosed in the prior arts, present quinoline compounds have better activity of inhibiting HMG CoA reductase. Present quinoline compounds can be used for treating the diseases relating to the high blood fat.

Abstract: The present invention discloses a quinoline compound represented by the formula A or pharmaceutically acceptable solvate, optical isomer or polymorph thereof, wherein X is S or O; M is H, Na+, NH4+ or Ca2+; each of R1, R2 and R3 is independently H, halogen, the group represented by formula D or formula E; R is H, halogen, C1˜C4 alkyl or C1˜C4 alkoxy. The present invention also discloses its pharmaceutical composition and the preparation method thereof and application in manufacturing a medicament for inhibiting HMG-CoA reductase or for the treatment and prophylaxis of the diseases which can be treated effectively by inhibiting HMG-CoA reductase. The quinloline compound and pharmaceutical composition thereof of the present invention have an excellent lipid reduction effect in vivo and can be applied for treatment of a hyperlipidemia-related disease.

Abstract: A kind of quinoline compounds as formula A, pharmaceutical accepted solvates, optical isomers or polymorphisms thereof. The intermediates of formula D. in which, R1, R2 and R3 is independently H, halo or the subustitents of formula H, in which, R is H, halo, C1˜C4alkyl, C1˜C4alkoxyl. The preparation methods and the uses for the manufacture of a medicament of inhibiting the HMG CoA reductase and treating the diseases relating to the high blood fat. Compared with the fluvastatin, rosuvatatin, pitavastatin disclosed in the prior arts, present quinoline compounds have better activity of inhibiting HMG CoA reductase. Present quinoline compounds can be used for treating the diseases relating to the high blood fat.

Abstract: The present invention discloses a quinoline compound represented by the formula A or pharmaceutically acceptable solvate, optical isomer or polymorph thereof, wherein X is S or O; M is H, Na+, NH4+ or Ca2+; each of R1, R2 and R3 is independently H, halogen, the group represented by formula D or formula E; R is H, halogen, C1˜C4 alkyl or C1˜C4 alkoxy. The present invention also discloses its pharmaceutical composition and the preparation method thereof and application in manufacturing a medicament for inhibiting HMG-CoA reductase or for the treatment and prophylaxis of the diseases which can be treated effectively by inhibiting HMG-CoA reductase. The quinloline compound and pharmaceutical composition thereof of the present invention have an excellent lipid reduction effect in vivo and can be applied for treatment of a hyperlipidemia-related disease.

Abstract: A detachable table tennis apparatus includes a playing table detachably mounted on a table, and a plurality of positioning devices mounted on the playing table to position the playing table on the table. Thus, the playing table is mounted on tables of different sizes to facilitate a user playing the table tennis. In addition, the fixing block is driven by the two movable plates to press or release the rim of the table so as to lock or unlock the playing table, so that the playing table is mounted on and detached from the table easily and rapidly. Further, the playing table is foldable when not in use to reduce the volume of the table tennis apparatus, thereby facilitating storage and transportation of the table tennis apparatus.