Abstract: The invention discloses a direction-adaptive image deblurring method, comprising steps of: (1) defining a minimum cost function for deblurring an image by direction-adaptive total variation regularization; (2) converting the unconstrained minimization problem in step (1) to a constrained problem by auxiliary variables d1=Hu, d2=?xu and d3=?yu; (3) obtaining a new minimum cost function from the constrained problem in step (2) by introducing penalty terms; and (4) converting the minimization problem in step (3) to an alternating minimization problem about u, d1, d2 and d3, where a minimum of a variable is calculated as other variables are determined, and obtaining a deblurred image by solving the alternating minimization problem by an alternative and iterative minimization process.

Abstract: A zonal underground structure detection method based on sun shadow compensation is provided, which belongs to the crossing field of remote sensing technology, physical geography and pattern recognition, and is used to carry out compensation processing after a shadow is detected, to improve the identification rate of zonal underground structure detection and reduce the false alarm rate. The present invention comprises steps of acquiring DEM terrain data of a designated area, acquiring an image shadow position by using DEM, a solar altitude angle and a solar azimuth angle, processing and compensating a shadow area, and detecting a zonal underground structure after the shadow area is corrected.

Abstract: The present invention discloses a multi-sensor merging based super-close distance autonomous navigation apparatus and method. The apparatus includes a sensor subsystem, an information merging subsystem, a sensor scanning structure, and an orientation guiding structure, wherein a visible light imaging sensor and an infrared imaging sensor are combined together, and data are acquired by combining a passive measurement mode composed of an optical imaging sensor and an active measurement mode composed of a laser distance measuring sensor.

Abstract: The invention discloses a communication method using dual-level and binary digital baseband symbols which represents information by durations of a high level and a low level instead of by a high level and a low level in conventional digital baseband symbol design. In the invention, waveforms of a symbol 0 and a symbol 1 are determined according to durations of a high level and a low level, a transmitter generates a corresponding digital baseband signal in terms of a binary data to be transmitted according to the defined waveforms, and a receiver determines a symbol 0 or a symbol 1 according to waveform of a received digital baseband signal. The invention realizes bit synchronization of a receiver and a transmitter without extracting a bit synchronization clock from a received signal by the receiver, and a bit rate thereof is higher than that of Manchester under a same signal bandwidth.

Abstract: The invention discloses a direction-adaptive image deblurring method, comprising steps of: (1) defining a minimum cost function for deblurring an image by direction-adaptive total variation regularization; (2) converting the unconstrained minimization problem in step (1) to a constrained problem by auxiliary variables d1=Hu, d2=?xu and d3=?yu; (3) obtaining a new minimum cost function from the constrained problem in step (2) by introducing penalty terms; and (4) converting the minimization problem in step (3) to an alternating minimization problem about u, d1, d2 and d3, where a minimum of a variable is calculated as other variables are determined, and obtaining a deblurred image by solving the alternating minimization problem by an alternative and iterative minimization process.

Abstract: A multiport DC-DC autotransformer for interconnecting three or more DC systems. The autotransformer includes 2N?1 converters sequentially connected in series at a DC side, and connected to an AC transmission line via an AC link at an AC side, and a positive terminal of the ith converter of the 2N?1 sequentially connected converters and a negative terminal of the (2N?i)th converter are respectively connected to a positive terminal of the ith DC system and a negative terminal thereof, where N represents the number of DC systems, and i represents the serial number of converters. Also disclosed are a method for determining power rating of each converter of the multiport DC-DC autotransformer, and a method for controlling the autotransformer. Most power can be transferred between different DC systems via a direct electrical connection without DC-AC-DC conversion.

Abstract: The present invention discloses a stereoscopic DC-DC converter for power transfer between two DC grids, the converter comprises a first converter, a second converter and a third converter, a positive terminal of the first converter is connected to a positive terminal of a second DC grid, a negative terminal of the first converter is connected to a positive terminal of the second converter, a negative terminal of the second converter is connected to a positive terminal of the third converter, a negative terminal of the third converter is connected to a negative terminal of the second DC grid, in the meantime, a positive terminal of the second converter is also connected to a positive terminal of a first DC grid, and the negative terminal of the second converter is also connected to a negative terminal of the first DC grid.

Abstract: A wireless power transfer system including a driver coil array, a hexagonally-packed transmitter mat, a receiver coil, and a load coil for powering a medical implant. The magnetically coupled resonance between two isolated parts is established by an array of primary coils and a single small secondary coil to create a transcutaneous power link for implanted devices as moving targets. The primary isolated part includes a driver coil array magnetically coupled to a mat of hexagonally packed primary coils. Power is injected by the driver coils into the transmitter coils in the transmitter mat to maintain resonance in the presence of losses and power drawn by the receiver coil from the magnetic field. The implanted secondary isolated part includes a receiver coil magnetically coupled to a load coil. A rectification/filter system is connected to the load coil supplying DC power to the electronic circuits of the implant.

Abstract: Disclosed is a process for preparing 5-aminosalicylic acid by gas phase catalytic carboxylation, characterized in that carbon dioxide is introduced into a system of p-acetaminophenol and a basic compound at a temperature of 150° C.˜220° C. and a pressure of 0.5˜5.0 MPa in the presence of a catalyst, so as to carry out a gas phase catalytic carboxylation reaction to form a 5-aminosalicylate, and the crude product 5-aminosalicylate is separated, and then acidified to prepare 5-aminosalicylic acid (5-ASA). Since the gas phase catalytic reaction replaces a solid phase thermo-chemical reaction, the reaction is significantly improved in terms of the process flow, reaction conditions, product quality and energy consumption. In addition, the reaction has a short reaction time, good selectivity, high yield and no formation of wastes during the reaction, and is suitable for industrial production.

Abstract: The present invention provides a method for modulating a navigation signal, comprising: multiplying a data channel difference signal between upper and lower sidebands by a sine binary subcarrier to obtain an odd timeslot baseband signal of a branch Q, and multiplying a data channel sum signal of the upper and lower sidebands by a cosine binary subcarrier to obtain an odd timeslot baseband signal of a branch I of the data channel; multiplying a pilot channel difference signal between the upper and lower sidebands by the sine binary subcarrier to obtain an even timeslot baseband signal of the branch Q, and multiplying a pilot channel sum signal of the upper and lower sidebands by the cosine binary subcarrier to obtain an even timeslot baseband signal of the branch I; and performing QPSK modulation on the baseband signals of the branch I and branch Q to obtain a TD-AltBOC modulation signal.

Abstract: A method for detecting spectral characteristics of multi-band moving objects. The method includes: 1) dividing a full field of view into several subfields of view, and scanning and extracting suspected objects in each subfield one by one; 2) correlating interrelated suspected objects in adjacent subfields via coordinates to determine objects of interest that exist in the full field of view; 3) calculating the speeds of the objects of interest; 4) calculating average speed of all of the objects of interest and classifying the objects of interest according to their average speed; 5) compensating and rectifying the objective spectrum obtained from calculation; and 6) matching the compensated and rectified objective spectrum with a spectrum fingerprint database whereby realizing recognition of the multi-band moving objects.

Abstract: A radiation-hardened memory storage unit that is resistant to total ionizing done effects, the unit including PMOS transistors.

Abstract: A radiation-hardened storage unit, including a basic storage unit, a redundant storage unit, and a two-way feedback unit. The basic storage unit includes a first PMOS transistor, a second PMOS transistor, a third PMOS transistor, and a fourth PMOS transistor. The first PMOS transistor and the second PMOS transistor are read-out access transistors. The third PMOS transistor and the fourth PMOS transistor are write-in access transistors. The redundant storage unit includes a fifth PMOS transistor, a sixth PMOS transistor, a seventh PMOS transistor, and an eighth PMOS transistor. The fifth PMOS transistor and the sixth PMOS transistor are read-out access transistors. The seventh PMOS transistor and the eighth PMOS transistor are write-in access transistors. The two-way feedback unit is configured to form a feedback path between the storage node and the redundant storage node.

Abstract: A radiation-hardened memory storage unit that is resistant to total ionizing done effects, the unit including PMOS transistors.

Abstract: A radiation-hardened storage unit, including a basic storage unit, a redundant storage unit, and a two-way feedback unit. The basic storage unit includes a first PMOS transistor, a second PMOS transistor, a third PMOS transistor, and a fourth PMOS transistor. The first PMOS transistor and the second PMOS transistor are read-out access transistors. The third PMOS transistor and the fourth PMOS transistor are write-in access transistors. The redundant storage unit includes a fifth PMOS transistor, a sixth PMOS transistor, a seventh PMOS transistor, and an eighth PMOS transistor. The fifth PMOS transistor and the sixth PMOS transistor are read-out access transistors. The seventh PMOS transistor and the eighth PMOS transistor are write-in access transistors. The two-way feedback unit is configured to form a feedback path between the storage node and the redundant storage node.

Abstract: The invention provides the Zidovudine-conjugated quinoline compound N-((1-(2-(hydroxy-methyl)-5-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-tetrahydrofuran-3-yl)-1H-1,2,3-triazol-4-yl)methyl)-6-(4b,8,8-trimethyl-4b,5,6,7,8,8a-hexahydrodibenzo[a,c]phenazin-2-yloxy)hexanamide. The compound can selectively kill hepatoma cells, especially hepatoma cells with hepatitis B, and inhibit the growth of subcutaneous tumors in mice, but has no significant toxicity to normal liver cells. Experiments confirm that the compound has an anti-hepatoma effect and can be used in preparation of anti-hepatoma drugs.

Abstract: A method for reducing skew angle variation range in a shingled magnetic recording system, the method including the following steps: 1) determining whether a starting magnetic track is in an inner recording zone; if yes, proceeding to step 2), otherwise proceeding to step 4); 2) using an inner writing corner to start shingled magnetic recording at a starting track; 3) using a shingled magnetic method to write rest magnetic tracks sequentially by the inner writing corner, keeping a writing pole moving in a direction from an inner recording zone to an outer recording zone; 4) determining whether the starting magnetic track is in the outer recording zone; 5) using an outer writing corner to start shingled magnetic recording at the starting track; and 6) using the shingled magnetic method to write the rest magnetic tracks sequentially by the outer writing corner.

Abstract: A wound rotor brushless doubly-fed motor includes a stator and a rotor. The stator includes two sets of three-phase windings and the number of pole pairs is p1 and p2 respectively. The rotor includes a multi-phase wound winding and phase number m is satisfied with the relation m=(p1+p2)/mk, in which, when p1+p2 is odd, mk=1; when p1+p2 is even, mk=2. Rotor slots are evenly distributed along the circumference of the air gap and the number of the rotor slots Z? is satisfied with the relation Z?=n(p1+p2), in which n is a positive integer. Rotor winding coils are multi-turn structure, coil number of each phase winding is nmk and each coil has the same span, but turn ratios among the coils are different. When the phase winding coils number ?nmk, all coils within the phase winding are automatically connected in short after being connected in series.

Abstract: Provided is an antipodal demodulation method and an antipodal demodulator for non-coherent unitary space-time modulation in MIMO wireless communication. The invention comprises: traversing L/2 constellation points in each sub-constellation of a non-coherent unitary space-time diagram for maximum likelihood demodulation calculation, determining a maximum trace ?max and a minimum trace ?min from traces of L/2 matrix products, calculating a maximum trace ?max of a matrix product corresponding to the constellation matrix in the other sub-constellation according to ?max=tr(YH ?j ?hHY)=tr(YHY)?tr(YH?j?jHY)=???min, and outputting a constellation point corresponding to the greater one of ?max and ?max as a demodulation signal. The antipodal demodulation method of the invention reduces calculation workload by ½ and features lower calculation complexity over the conventional maximum likelihood demodulation method without degrading demodulation performance.

Abstract: The invention provides Zidovudine conjugated quinoline compound N-((1-(2-(Hydroxy-methyl)-5-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-tetrahydrofuran-3-yl)-1H-1,2,3-triazol-4-yl)methyl)-6-(4b,8,8-trimethyl-4b,5,6,7,8,8a-hexahydrodibenzo[a,c]phenazin-2-yloxy)hexanamide. The compound can selectively kills the hepatoma cells especially the hepatoma cells with hepatitis B, and inhibit the growth of subcutaneous tumors in mice, but has no significant toxicity to normal liver cells. Experiments confirm the compound has anti-hepatoma effect, and can be used in preparation of anti-hepatoma drugs.