Abstract: The present disclosure discloses a horizontal type combined filter separator, including a barrel-shaped structure. The inside of the shell is sequentially divided into a first cavity, a second cavity and a third cavity from a first end and a second end. A fourth cavity is formed in the first cavity. The horizontal type combined filter separator further includes a communicating pipe with one opened end and one closed end; the closed end of the communicating pipe extends into the first cavity, and the opened end passes through the second cavity and extends into the third cavity. The shell is provided with a gas intake connection pipe communicating with the fourth cavity. A plurality of cyclone separators are provided; a gas inlet of each cyclone separator communicates with the fourth cavity; a dust discharging port communicates with the first cavity; and an exhaust port extends into the communicating pipe.

Abstract: A system and method are provided for very short pitch detection and coding for speech or audio signals. The system and method include detecting whether there is a very short pitch lag in a speech or audio signal that is shorter than a conventional minimum pitch limitation using a combination of time domain and frequency domain pitch detection techniques. The pitch detection techniques include using pitch correlations in time domain and detecting a lack of low frequency energy in the speech or audio signal in frequency domain. The detected very short pitch lag is coded using a pitch range from a predetermined minimum very short pitch limitation.

Abstract: A cooling system for a shafting and a control method therefor, and a wind turbine are provided. The cooling system includes a cold air supply unit and a rotating-shaft air blow box. The rotating-shaft air blow box is mounted on an inner surface of the stationary shaft and in the shape of a circular ring-shaped box, multiple first air blow openings are uniformly distributed in a surface, facing the rotating shaft, of the rotating-shaft air blow box in a circumferential direction, to blow cold air from the cold air supply unit to the rotating shaft. Each first air blow opening is in the shape of a slit to form a jet.

Abstract: A fast blind plate switching device, comprising a sealing structure, a clamping structure, a support structure and an execution mechanism. The blind plate has an open-state structure and a blind-state structure. The support structure is used for connecting pipelines at two sides and providing support for the whole device. The clamping structure and the sealing structure are located inside the support structure. The clamping structure is driven by the execution mechanism, and under the drive of the execution mechanism, the clamping structure presses on the blind plate (1) to eliminate a gap between two sides of the blind plate, so that a seal is formed by means of the sealing structure. When a gap is formed away from the blind plate (1), the open/blind state of the blind plate (1) is switched.

Abstract: The disclosure provides an optical imaging lens assembly, which sequentially includes from an object side to an image side along an optical axis: a first lens with a refractive power; a second lens with a refractive power; a third lens with a refractive power; a fourth lens with a refractive power; a fifth lens with a refractive power; and a sixth lens with a refractive power. Wherein Semi-FOV is a half of a maximum field of view of the optical imaging lens assembly, and Semi-FOV satisfies Semi-FOV?60°; A curvature radius of an object-side surface of the first lens and a curvature radius of an image-side surface of the first lens satisfy ?2.5<(R1?R2)/(R1+R2)<?1.0; A curvature radius of an object-side surface of the second lens and a curvature radius of an image-side surface of the second lens satisfy 1.5<R4/R3<2.5.

Abstract: A system and a method for on-line analysis of a structure of dried shredded tobacco are provided. The system includes a shredded tobacco structure on-line analysis module, a shredded tobacco filling capacity prediction model module, and an early-warning module. The shredded tobacco structure on-line analysis module includes a sample extraction unit, a sample analysis unit and a shredded tobacco filling capacity data acquisition unit. The shredded tobacco filling capacity prediction model module includes a model parameter screening unit and a model construction unit. An early-warning threshold is provided in the early-warning module, and when a deviation of a predicted shredded tobacco filling capacity from a standard value exceeds the early-warning threshold, an alarm is given. The new system is an intelligent system with functions of shredded tobacco structure analysis, shredded tobacco filling capacity prediction, and abnormality early-warning determination and analysis.

Abstract: An ultra-hard carbon film is formed by the uniaxial compression of thin films of graphene. The graphene films are two or three layers thick (2-L or 3-L). High pressure compression forms a diamond-like film and provides improved properties to the coated substrates.

Abstract: The present disclosure provides a method and apparatus for driving a display panel, and a display device. The method includes: upon driving an ith row of sub-pixels, scanning a gate line connected to a jth row of sub-pixels, and determining a reference grayscale of each of the jth row of sub-pixels in each candidate connection mode, wherein a plurality of data lines have a plurality of candidate connection modes; determining a target connection mode that minimizes a grayscale variation degree of the jth row of sub-pixels from the plurality of candidate connection modes; connecting the plurality of data lines according to the target connection mode; and disconnecting the plurality of data lines before driving the jth row of sub-pixels through the plurality of data lines.

Abstract: Methods and systems for methods and systems for performing GNSS orbit and clock augmentation and position determination are disclosed. In an embodiment, a method for performing GNSS augmentation and position determination includes obtaining orbit/clock initial parameters with a receiver device, generating a numerically-integrated orbit and extrapolated clock in response to the orbit/clock initial parameters with a processing device, and processing the observations of a GNSS receiver and the numerically-integrated orbit and extrapolated clock to derive an improved positioning solution with a processing device.

Abstract: Disclosed is a magnetic resonance imaging radio-frequency coil assembly with high time-domain signal stability, mainly including a radio-frequency transmitting coil unit, a plurality of radio-frequency receiving coil units, and a housing structure. A plane area of the radio-frequency transmitting coil unit is larger than a sum of layout plane areas of all of the plurality of radio-frequency receiving coil units. The plurality of radio-frequency receiving coil units are arranged at an internal side of the radio-frequency transmitting coil unit. An overall size of an array formed by the plurality of radio-frequency receiving coil units is larger than a size of an imaging region. A circumference of each radio-frequency receiving coil unit is less than one tenth of a wavelength of a vacuum electromagnetic wave. Thermal noise from the load accounts for a small proportion in the radio-frequency receiving coil units.

Abstract: Provided is a proxy call session control function (P-CSCF) failure recovery method. The method includes: sending, by a session management function (SMF), a SMF registration request to unified data management (UDM), where the SMF registration request carries Internet protocol multimedia core network subsystem (IMS) attribute information; receiving, by the SMF, a P-CSCF failure recovery indication sent by the UDM; registering, by the UDM, according to the IMS attribute information in the SMF registration request, the SMF; and initiating, by the SMF, according to the P-CSCF failure recovery indication, a P-CSCF failure recovery process. Further provided are a P-CSCF failure recovery method, a P-CSCF failure recovery apparatus, a P-CSCF failure recovery system, a storage medium and a processor.

Abstract: The invention discloses a core-shell structured anionic nano microemulsion system, and preparation and application thereof. The system comprises an anionic Gemini surfactant, an oil phase material, a solubilizer and water; wherein the microemulsion has a core-shell structure, with the outer shell being an anionic Gemini surfactant, and the inner core being an oil phase material. The anionic Gemini surfactant is N,N,N?,N?-dodecyl tetrasubstituted diphenyl ether sulfonate having the structural formula: The anionic nano-microemulsion system of the present invention is homogeneous and transparent, has a spherical core-shell structure, has a nanometer size (3 to 40 nm) as droplets, has a narrow particle size distribution, is not easy to agglomerate, has good stability, and has an ultra-low interfacial tension and a capability of reducing viscosity of crude oil.

Abstract: Isolated polynucleotides and polypeptides, and recombinant DNA constructs, suppression DNA constructs and CRISPR/Cas9 DNA constructs are provided. Compositions (such as plants or seeds) with modified expression or activity of the isolated polypeptides are obtained by transforming the regenerable plant cell with a suppression DNA construct or CRISPR/Cas construct. The plants with improving drought tolerance are obtained by decreasing the expression or activity of the isolated polynucleotide.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for performing residual quantization are described. One example of the methods includes performing a first residual quantization on a first target residual signal at a first bit rate to generate a first quantized residual signal. A second target residual signal is generated based at least on the first quantized residual signal and the first target residual signal. A second residual quantization is performed on the second target residual signal at a second bit rate to generate a second quantized residual signal, where the first bit rate is different from the second bit rate.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for performing audio coding are described. One example of the methods includes receiving an audio signal that includes one or more subband signals. A residual signal of at least one of the one or more subband signals is generated based on the at least one of the one or more subband signals. It is determined that the at least one of the one or more subband signals is a high pitch signal. In response to determining that the at least one of the one or more subband signals is a high pitch signal, weighting is performed on the residual signal of the at least one of the one or more subband signal to generate a weighted residual signal.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for performing long-term prediction (LTP) are described. One example of the methods includes determining a pitch gain and a pitch lag of an input audio signal for at least a predetermined number of frames. It is determined that the pitch gain of the input audio signal has exceeded a predetermined threshold and that a change of the pitch lag of the input audio signal has been within a predetermined range for at least the predetermined number of frames. In response to determining that the pitch gain of the input audio signal has exceeded the predetermined threshold and that the change of the third pitch lag has been within the predetermined range for at least the predetermined number of frames, a pitch gain is set for a current frame of the input audio signal.

Abstract: Methods, systems, apparatuses, and computer programs encoded on computer storage media for performing linear predictive coding (LPC) are described. At least one of a differential spectrum tilt and an energy difference between a current frame and a previous frame of the audio signal is determined. A spectral stability of the audio signal is detected based on at least one of the differential spectrum tilt and an energy difference between the current frame and the previous frame of the audio signal. In response to detecting the spectral stability of the audio signal, quantized LPC parameters for the previous frame are copied into the current frame of the audio signal.

Abstract: The disclosure discloses a zoom lens group, which sequentially includes, from an object side to an image side along an optical axis: a first lens group with negative refractive power, including a first lens and a second lens, wherein the first lens has negative refractive power, and an object-side surface thereof is a concave surface; a second lens group with positive refractive power; a third lens group with positive refractive power; and a fourth lens group with negative refractive power. A spacing distance of the first lens group and the second lens group on an optical axis, a spacing distance of the second lens group and the third lens group on the optical axis and a spacing distance of the third lens group and the fourth lens group on the optical axis are changed to switch the zoom lens group from a telephoto state to a wide-angle state.

Abstract: A method for controlling an electric motor, the method including determining a planned reference speed of the electric motor; determining a pulse-width modulation (PWM) switching frequency based on the planned reference speed; and controlling the electric motor with an alternating current produced by PWM switching with the determined PWM switching frequency. A control system for controlling an electric motor and an industrial robot including a control system, are also provided.

Abstract: The disclosure discloses a zoom lens group. The zoom lens group sequentially includes from an object side to an image side along an optical axis: a first lens group having a negative refractive power, the first lens group including a first lens and a second lens which are sequentially arranged along the optical axis; a second lens group having a positive refractive power, the second lens group including a third lens, a fourth lens and a fifth lens which are sequentially arranged along the optical axis; and a third lens group having a positive refractive power, a separation distance between the first lens group and the second lens group on the optical axis and a separation distance between the second lens group and the third lens group on the optical axis are adjusted, so as to switch the zoom lens group from a wide-angle state to a long-focus state.