Abstract: A spinel-type lithium and manganese containing composite oxide has a chemical composition of Li1+xMyMn2-yO4-k, where ?0.1?x?0.2; 0?y?0.3; 0?k?0.2. M includes at least one of B, Na, Mg, Al, Si, P, K, Ti, V, Cr, Fe, Co, Ni, Cu, Zr, Mo, W, and Te. Crystal grains of the spinel-type lithium and manganese containing composite oxide have a quasi-spherical morphology. A surface of a single crystal grain is formed by a continuous curved surface connected to a finite surface with a profile circumscribed by the continuous curved surface, or is a continuous curved surface. A quantity of observable finite surfaces with the profile circumscribed by the continuous curved surface in an SEM image of a single crystal grain is ?5. A ratio of a diameter dA of the finite surface with the profile circumscribed by the continuous curved surface to a diameter dV of the crystal grain satisfies dA/dV?0.5, optionally dA/dV?0.3.

Abstract: Embodiments of the disclosure provide a solution for speech generation. A method includes: determining, based on a target text, a plurality of phoneme feature representations corresponding to a sequence of phonemes in the target text and respective phoneme durations for the plurality of phoneme feature representations; extending the plurality of phoneme feature representations based on the respective phoneme durations, to obtain an extended sequence of phoneme feature representations; masking at least one phoneme feature representation in the extended sequence of phoneme feature representations, to obtain a sequence of masked phoneme feature representations; and generating a target speech corresponding to the target text at least based on the sequence of masked phoneme feature representations.

Abstract: Embodiments of the disclosure provide a solution for model training. A method includes: obtaining a training sample for training a machine learning model, the training sample comprising a sample speech, a sample text corresponding to the sample speech and speech duration information for the sample text, the machine learning model being configured to perform a plurality of tasks for speech processing; extracting a speech feature representation from the sample speech, a text feature representation from the sample text, a phoneme feature representation and a duration feature representation for the phoneme feature representation from the speech duration information; and training, according to the plurality of tasks, the machine learning model based on at least one of: the speech feature representation, the text feature representation or a combination of the phoneme feature representation and the duration feature representation.

Abstract: The embodiments of the present application disclose a flexible display panel and a method of manufacturing the same. By providing a recess on a position of a pixel definition layer corresponding to a region between two adjacent sub-pixel regions, the recess can increase a contact area between a second electrode and the pixel definition layer, thereby improving adhesion force of the second electrode and avoiding image abnormality caused by the second electrode being peeled off from the pixel definition layer during bending of the flexible display panel.

Abstract: An example optical fiber signal mode conversion apparatus includes a non-single-mode optical fiber and a single-mode optical fiber. The single-mode optical fiber forms, with the non-single-mode optical fiber, a first coupling region and a second coupling region along a signal transmission direction in the non-single-mode optical fiber, where an effective refractive index of a fundamental mode signal of the single-mode optical fiber in the first coupling region is equal to an effective refractive index of a signal in a first mode, the signal in the first mode is coupled to a fundamental mode channel of the single-mode optical fiber, and an effective refractive index of the fundamental mode signal of the single-mode optical fiber in the second coupling region is equal to an effective refractive index of a signal in a second mode.

Abstract: The present application provides a GOA circuit and a display panel. The GOA circuit includes a plurality of cascaded GOA units. Every GOA unit includes a pull-up control module, a pull-up output module, a pull-down control module, a pull-down output module, a pull-down maintenance module, and a random location module. By adding the random location module in the GOA unit, the GOA circuit has a function of randomly selecting rows and outputting scanning signals, so as to realize a purpose of randomly selecting rows for mobility detection and compensation.

Abstract: The present disclosure provides a pixel compensation circuit, a display panel, and a pixel compensation method. The pixel compensation circuit includes a first transistor, a driving transistor, a compensation transistor, a second transistor, a third transistor, a reset transistor, a storage capacitor, and a light-emitting device. The circuit of the present disclosure uses transistors having different types and complementary polarity, and the transistors are connected to a first scanning line and a second scanning line, respectively. Compared with a conventional pixel compensation circuit, the circuit of the present disclosure uses fewer scanning signal lines and simpler timing.

Abstract: Disclosed is path planning system and method for sea-aerial cooperative underwater target tracking, the method comprises: obtaining the position information of a detection target, carrying out a first path planning along a channel of sea surface monitoring device according to the position information of the detection target; carrying out a second path planning along the channel of sea surface monitoring device according to the water surface navigation map and its own position information, constructing an underwater obstacle map; performing a third path planning according to the underwater obstacle map, and tracking to the position of the detection target to complete the tracking task. This disclosure adopts the collaborative optimization of several clusters to reduce the number of iterations and improve the optimization efficiency, making the path planning reasonable, as a result, the target position can be quickly tracked, and the autonomous collaborative tracking capability is improved.

Abstract: The present invention relates to an adjustable torsion bar system and an anti-roll method, the adjustable torsion bar system is formed through the adjustable hydraulic connecting rods; and by controlling the flow of the liquid media, the characteristics of the hydraulic connecting rods are changed so that the length of the connecting rods has the characteristics of unchanged, unidirectional follow-up elongation or unidirectional follow-up shortening. Thus, the anti-rolling torsion bar system can provide the bidirectional anti-rolling torque or unidirectional anti-rolling torque to satisfy the safety driving requirements of the railway vehicle on different rails.

Abstract: An alternating stack of insulating layers and sacrificial material layers is formed over a substrate, and support pillar structures are formed through the alternating stack. Stepped surfaces are formed by patterning the alternating stack and the support pillar structures. A retro-stepped dielectric material portion is formed over the stepped surfaces. Memory openings and memory opening fill structures are formed through the alternating stack. Electrically conductive layers are formed by replacing at least the sacrificial material layers with at least one electrically conductive material. Contact via structures are formed through the retro-stepped dielectric material portion on the electrically conductive layers. A first support pillar structure is located directly below a first contact via structure.

Abstract: A method for improving the curvilinear running speed of railway vehicles and the small tilting system: when the railway vehicle is driven on a curve, the raising and falling of air springs on both sides of the railway vehicle are controlled by a control assembly to realize small tilting of the railway vehicle toward the inner side of the curve; the transverse component of gravity after the small tilting of the railway vehicle is used for balancing part of the centrifugal force and reducing the influence of the centrifugal force, thereby improving the curve driving speed of the railway vehicle; and at the same time, an adjustable torsion bar system is controlled to provide a unidirectional anti-rolling torque for preventing the railway vehicle from rolling toward the outer side of the curve without hindering the railway vehicle from tilting slightly toward the inner side of the curve.

Abstract: An electro-optic modulator, a manufacturing method thereof, and an optical communication system are provided. The electro-optic modulator includes a substrate and a dielectric layer located on a side of the substrate. An organic waveguide and electrodes on two sides of the organic waveguide are disposed in the dielectric layer. A refractive index of the organic waveguide is greater than a refractive index of the dielectric layer. A material of the organic waveguide is an organic material having electro-optic effect. A dielectric waveguide is disposed in the organic waveguide. The dielectric waveguide and the organic waveguide form a composite waveguide. A refractive index of the dielectric waveguide is greater than the refractive index of the organic waveguide.

Abstract: A method for reinforcing soft ground by post-grouting combined with pressurized vacuum preloading is proposed, by pre-burying prefabricated vertical drains and air-boosted pipes in granular material piles, and the air-boosted pipes are used as grouting pipes to reduce the number of times of piling, which not only improves the construction efficiency, but also reduces the structural disturbance of the soil and the influence of smear effect, thus reducing the impact on the radial permeability and the radial consolidation coefficients. The method does not use geotextile bags for granular materials, which can avoid the problem of forming a localized clogging area around the geotextile bags, and the method not only improves the efficiency of vacuum transfer in a pre-consolidation stage, but also improves the grouting effect in the later stage, effectively enhances the strength of soft soil and makes granular material piles and the surrounding soil form composite ground.

Abstract: A light emitting device driving circuit and a display panel both include a light emitting device, a driving transistor, a data signal write module, a light emitting control module, a reset module, a compensation module, and a storage capacitor. A threshold voltage of the driving transistor can be compensated by the compensation module, and a first node can be reset by the reset module. This can solve the technical problem that the existing light emitting drive circuit cannot compensate for the threshold voltage of the driving transistor.

Abstract: The present disclosure provides a pixel compensation circuit, a display panel, and a pixel compensation method. The pixel compensation circuit includes a first transistor, a driving transistor, a compensation transistor, a second transistor, a third transistor, a reset transistor, a storage capacitor, and a light-emitting device. The circuit of the present disclosure uses transistors having different types and complementary polarity, and the transistors are connected to a first scanning line and a second scanning line, respectively. Compared with a conventional pixel compensation circuit, the circuit of the present disclosure uses fewer scanning signal lines and simpler timing.

Abstract: A method for reinforcing soft ground by post-grouting combined with pressurized vacuum preloading is proposed, by pre-burying prefabricated vertical drains and air-boosted pipes in granular material piles, and the air-boosted pipes are used as grouting pipes to reduce the number of times of piling, which not only improves the construction efficiency, but also reduces the structural disturbance of the soil and the influence of smear effect, thus reducing the impact on the radial permeability and the radial consolidation coefficients. The method does not use geotextile bags for granular materials, which can avoid the problem of forming a localized clogging area around the geotextile bags, and the method not only improves the efficiency of vacuum transfer in a pre-consolidation stage, but also improves the grouting effect in the later stage, effectively enhances the strength of soft soil and makes granular material piles and the surrounding soil form composite ground.

Abstract: A method for reinforcing soft ground by post-grouting combined with pressurized vacuum preloading is proposed, by pre-burying prefabricated vertical drains and air-boosted pipes in granular material piles, and the air-boosted pipes are used as grouting pipes to reduce the number of times of piling, which not only improves the construction efficiency, but also reduces the structural disturbance of the soil and the influence of smear effect, thus reducing the impact on the radial permeability and the radial consolidation coefficients. The method does not use geotextile bags for granular materials, which can avoid the problem of forming a localized clogging area around the geotextile bags, and the method not only improves the efficiency of vacuum transfer in a pre-consolidation stage, but also improves the grouting effect in the later stage, effectively enhances the strength of soft soil and makes granular material piles and the surrounding soil form composite ground.

Abstract: The present disclosures discloses a precooler-based transcritical CO2 heat pump system and a control method of a waterway two-way valve thereof, in which a transcritical CO2 heat pump system is assisted by a precooler system. A circulating waterway is divided into two parts in the system through a three-way diversion valve and a three-way confluence valve and is connected to a waterway bypass valve through a waterway two-way regulating valve. An ambient temperature sensor, an evaporation fin temperature sensor and an evaporation pressure sensor are provided, and a programmable logic controller is used as a core for acquisition, operation and control.

Abstract: A positive active material, a secondary battery, a battery module, a battery pack, and an electrical device are disclosed. The positive active material includes a spinel-type lithium-manganese-containing composite oxide with a molecular formula of Li1+xAaMbXcMn2?a?b?c?xO4?t. In the molecular formula: A is a doping element for a manganese site of the spinel-type lithium-manganese-containing composite oxide; M is used for combining with O to form a second phase containing a polyoxyanion, and M includes one or more of B, C, N, Si, P, S, or Cl; X includes one or more of Mg, Al, Si, Ca, Sc, Ti, Cr, Fe, Co, Ni, Cu, Zn, or Zr; and the molecular formula satisfies: ?0.1?x?0.3, 0<a?0.2, 0<b?0.2, 0<c?0.7, and 0?t?0.2.

Abstract: A flexible display panel is provided. The flexible display panel includes a substrate, a driving circuit layer disposed on one side of the substrate, a light emitting structure disposed on one side of the driving circuit layer away from the substrate, and a packaging layer disposed on one side of the light emitting structure away from the driving circuit layer, wherein a buffer member is disposed on a surface of at least one layer of the packaging layer or the substrate.