Abstract: A white light emitting material having a chemical structural formula represented by formula (I), a preparation method thereof and application thereof. The preparation method comprises subjecting tris(4-iodophenyl)amine and 4-methoxyphenylacetylene or tris(4-iodophenyl)amine and methyl 4-ethynylbenzoate to a coupling reaction under protection of a protective gas and catalysis of a Pd/Cu mixed catalyst, to obtain the white light emitting material. A novel temperature-sensitive light emitting material is synthesized through a one-step method. The material is applied to the field of diode luminescence based on the temperature-sensitive characteristic. White light luminescence can be finally realized only by reasonably controlling the temperature and duration time during heating a substrate. Compared with the existing art, the method greatly saves raw material costs and manufacturing process costs, and provides a novel idea and strategy for use of a white organic light emitting diode.

Abstract: A data migration method for a storage system after expansion and a storage system are provided. After an ith expansion is performed on the storage system, data migration is performed by using an auxiliary balanced incomplete block design. Because a quantity of tuples including any element in the auxiliary balanced incomplete block design is identical, and each migration unit includes an identical quantity of parity chunks, a data migration amount after the expansion is minimized. In this way, time required for data migration after the expansion is significantly reduced, and a delay in a response to a user request that is caused because a data migration operation needs to be performed after the expansion is also reduced.

Abstract: A sequence signal generator and a sequence signal generation method are provided. In the sequence signal generation method, a waveform output instruction sent by a host computer is received to acquire waveform data. The waveform data includes original square wave sequence data and target square wave sequence data, and the target square wave sequence data includes a preliminary delay parameter and a secondary delay parameter. An original square wave sequence signal is acquired according to the original square wave sequence data. According to the preliminary delay parameter, preliminary delay processing is performed on the original square wave sequence signal to acquire an intermediate square wave sequence signal, and according to the secondary delay parameter, secondary delay processing is performed on the intermediate square wave sequence signal to acquire a target square wave sequence signal.

Abstract: Disclosed are a system and method for micro-nano machining by femtosecond laser two-photon polymerization. The system includes: a femtosecond laser, an external light path modulation unit, an image capture apparatus, a focusing lens, a displacement platform, a computer and a monitoring apparatus, where the image capture apparatus is configured to capture cross-section graphs of a three-dimensional micro-nano device layer by layer, so that modulated femtosecond lasers form parallel beams arranged according to all layers of the cross-section graphs.

Abstract: An image prediction method and device are disclosed. The method includes: obtaining a first reference unit of an image unit, where respective predicted images are obtained for the image unit and the first reference unit by using a same affine model; obtaining motion information of basic motion compensation units at two or more preset positions in the first reference unit; and obtaining motion information of a basic motion compensation unit of the image unit according to the motion information. In this way, motion information of the first reference unit using a same affine motion prediction model is reused, and a more accurate motion vector of a current image unit is obtained, improving prediction accuracy and maintaining encoding and decoding complexity, thereby improving encoding and decoding performance.

Abstract: A magnetic field measurement device and a magnetic field measurement method based on solid-state spins are provided. Zeeman splitting between electron energy levels of electrons of a magnetic sensitive unit is different under the action of external magnetic fields having different intensities. Continuous excitation and manipulation is applied to the electrons by means of a control field and control laser, so that spins of a system can reach a balanced state. The spin population of the system is influenced by the external magnetic fields. Therefore, fluorescence signals with intensities changing with the spin population of the system can be obtained, and fluorescent signals having different intensities can be obtained according to the different intensities of the external magnetic fields.

Abstract: Embodiments of the present disclosure provide a congestion control method, an apparatus, and a system. The method includes receiving, by a first device, an acknowledgement packet that is from a second device and that includes an ECE identifier. Based on an indication of the ECE identifier the first device starts monitoring a plurality of sub streams on a plurality of transmission paths between the first device and the second device, and grouping, into one set, sub streams that meet a congestion control condition. Additionally, intra-set congestion control is performed on the sub streams in the set. Separately congestion control is performed on a sub stream that is not in the set. The congestion control method is applied to a scenario in which data transmission is performed between the first device and the second device by using the MPTCP.

Abstract: A wireless sensor network deployment structure combined with SFFT and COA and a frequency spectrum reconstruction method therefor. The wireless sensor network deployment structure includes: frequency spectrum acquisition sensor nodes dispersed in each region, and a sink node, wherein all the frequency spectrum acquisition sensor nodes have the same structure, and include: a broadband frequency spectrum antenna, a delayer, an ADC, a first baseband processing module, a DAC and a transmitting antenna that are successively connected; all the frequency spectrum acquisition sensor nodes are cooperated to realize SFFT and COA of signals; the signals transmitted by all the frequency spectrum acquisition sensor nodes are superimposed over the air and received by the sink node; and the sink node extracts a data domain from a received signal frame by post-processing, thereby completing frequency spectrum reconstruction.

Abstract: A picture prediction method and a related apparatus are disclosed. The picture prediction method includes: determining motion vector predictors of K pixel samples in a current picture block, where K is an integer greater than 1, the K pixel samples include a first vertex angle pixel sample in the current picture block, a motion vector predictor of the first vertex angle pixel sample is obtained based on a motion vector of a preset first spatially adjacent picture block of the current picture block, and the first spatially adjacent picture block is spatially adjacent to the first vertex angle pixel sample; and performing, based on a non-translational motion model and the motion vector predictors of the K pixel samples, pixel value prediction on the current picture block. Solutions in the embodiments of the present application are helpful in reducing calculation complexity of picture prediction based on a non-translational motion model.

Abstract: Disclosed is a proteomic reactor, comprising a pipette tip, an ion exchange resin filler and a solid-phase extraction membrane. The solid-phase extraction membrane is filled into the lower end of the pipette tip, and the ion exchange resin filler is filled into the lower end of the pipette tip and is located above the solid-phase extraction membrane. The ion exchange resin filler is a strong cation exchange resin filler or a strong anion exchange resin filler. Disclosed is a protein chromatographic separation platform comprising the proteomic reactor and a liquid chromatography-mass spectrometer. Disclosed is the use of the proteomic reactor and protein chromatographic separation platform in the protein identification and protein quantitative analysis of a cell, a tissue or a blood sample.

Abstract: A pulsed electron paramagnetic resonance spectrometer comprises: a microwave excitation generating unit for generating at least one microwave pulse; a microwave conducting unit comprising a resonant cavity and a microwave transmission line for transmitting microwaves, wherein the microwave transmission line is connected between the microwave excitation generating unit and the resonant cavity, and the resonant cavity is for placing a sample; a cryostat and magnet unit comprising a cryostat that performs ultra-low temperature cooling for the microwave resonant cavity, the microwave transmission line being disposed to pass through the cryostat and connected to the resonant cavity; the cryostat and magnet unit further comprises a magnet that provides a resonance test magnetic field around the sample, the resonant cavity being disposed in a room temperature gap of the magnet. The device of the present disclosure characteristics in ultra-low sample temperature (0.

Abstract: Embodiments of the present invention provide a heat dissipation apparatus. Wherein a loop coil is disposed on a swing plate. A first magnet and a second magnet are located on two sides of the loop coil, and when a current whose direction periodically varies flows through the loop coil, an Ampere force whose direction periodically varies is applied to the loop coil under an action of a magnetic field formed by the first magnet and the second magnet, so that the loop coil drives the swing plate to swing back and forth. The present invention is used for heat dissipation of a micro electronic component.

Abstract: Disclosed is a control method for controlling data return in a passive sensor network comprising an aggregation node and sensor nodes. The control method comprises the following steps: controlling the aggregation node to broadcast energy to the entire passive sensor network; controlling the sensor nodes to collect the energy broadcast by the aggregation node; clustering, according to a predetermined clustering rule, the sensor nodes and selecting cluster heads; and controlling each of the sensor nodes of each cluster to transmit data to a corresponding cluster head and then to the aggregation node or one of the sensor nodes of a cluster closer to the aggregation node so as to eventually transmit the data to the aggregation node and closing the sensor node that completes data transmission. In addition, a control device is also disclosed.

Abstract: Disclosed is a control method for controlling data return and energy optimization in a passive sensor network. The passive sensor network comprises an aggregation node and sensor nodes. The control method comprises an energy calculating step, an energy broadcasting step, an energy collecting step, a clustering step and a data transmitting step. By means of the control method in the embodiments of the present disclosure, data return and energy optimization in a passive sensor network are controlled, so that insofar as all sensor nodes can return data to an aggregation node, the aggregation node consumes the least amount of energy, thereby achieving the optimal energy usage efficiency. Also disclosed is a control device.

Abstract: Provided is a visible light communication transceiver. A drive amplification module performs digital-to-analog conversion and amplification on a digital modulation signal to obtain a first electrical signal, and transmits the signal to a Bias Tee-like circuit. The Bias Tee-like circuit transmits the first electrical signal to a LED light source. The LED light source performs electrical-to-optical conversion on the first electrical signal to generate a first optical signal and transmits the first optical signal, and performs optical-to-electrical conversion on a received second optical signal to obtain a second electrical signal. The Bias Tee-like circuit obtains the second electrical signal from the LED light source, and transmits the second electrical signal to an adaptive amplification and equalization module. The adaptive equalization module adjusts a gain of the second electrical signal based on an optical power of the first optical signal.

Abstract: An FPGA-based square-wave generator and a square-wave generation method.

Abstract: A method for preparing a fluorescent polarizing film based on directional arrangement of quantum rods. In the method, an inkjet printing technology is used for printing quantum-rod ink having proper viscosity and surface tension on a substrate according to a preset pattern, and directionally arranging quantum rods to obtain a fluorescent polarizing film. The diameter and spacing of fluorescent lines obtained by the method can be controlled and adjusted according to parameter conditions such as a needle aperture, a printing speed, and a preset pattern. The prepared transparent fluorescent film with directionally arranged quantum rods has a high degree of polarization, can be prepared on a flexible substrate in a normal temperature environment, and has wide applicability.

Abstract: A conjugate containing a fluorescent chromophore, which has any structure selected from C1 to C3. The conjugate containing the fluorescent chromophore provided by the described embodiments includes one fluorescent chromophore and two highly reactive groups R1 and R2 linked to the fluorescent chromophore by a covalent bond. The fluorescent chromophore in the conjugate initially has no or only weak fluorescence emission capability, and only after the two highly reactive groups react together with the corresponding molecule, the fluorescent chromophore has strong fluorescence emission. Therefore, the efficiency of conjugation of drug molecules to targeting molecules can be monitored in situ by the infrared fluorescence emission intensity and applied to the target-mediated drug delivery.

Abstract: An energy management method and system are provided for a receiving terminal of a simultaneous information and energy transfer system. The method comprises the steps of: activating a battery to provide a working power supply, receiving a simultaneous information and energy transfer signal, processing the signal and harvesting energy in the signal, storing the harvested energy into a temporary energy storage unit, and stopping the battery from supplying power, and charging the battery from the energy stored in the temporary energy storage unit. The system comprises a receiver and an energy management module.

Abstract: A video encoding and decoding method and apparatus are provided. The video encoding method includes: obtaining a first statistical characteristic of previous K frames of images of a video sequence; determining a first background frame; determining, according to the first statistical characteristic, a QP used for encoding the first background frame; encoding the first background frame according to the QP, to obtain a first background long-term reference frame; and encoding the (K+1)th frame of image of the video sequence to the (K+L)th frame of image of the video sequence according to the first background long-term reference frame. When encoding is performed on the (K+1)th frame of image of the video sequence to the (K+L)th frame of image of the video sequence, the used QP for encoding the background long-term reference frame is determined according to the first statistical characteristic related to video content of the previous K frames of images.