Abstract: An ultrasonic image quality quantitative evaluation method includes segmenting a focus area aiming at a target ultrasonic image to extract a region of interest and perform a masking operation to acquire an image segmentation result mask; taking the image segmentation result mask as a reference image, and quantitatively comparing the reference image with a corresponding focus area according to a set evaluation standard to acquire a plurality of evaluation result indexes; and inputting the plurality of evaluation result indexes as an image feature into a classifier to acquire a quality quantification result of the focus area of the target ultrasonic image, where the classifier takes the plurality of evaluation result indexes corresponding to a sample image as an input feature, takes an image quality label of the labeled focus area as an output, and acquires the quality quantification result through training based on a set loss function.

Abstract: A three-dimensional semiconductor package including: a package substrate having a first surface and a second surface opposite to the first surface; a first redistribution layer on the first surface of the package substrate, the first redistribution layer having a first surface and a second surface opposite to each other; a first chip on the first surface of the first redistribution layer, electrically connected to the first redistribution layer, and including first through silicon vias; first connection terminals electrically connected to one ends of the first through silicon vias; a second redistribution layer on the second surface of the package substrate, the second redistribution layer having a first surface and a second surface opposite to each other, the first surface of the second redistribution layer facing the second surface of the package substrate; and a second chip on the second surface of the second redistribution layer.

Abstract: A method for enriching lithium from a lithium clay includes the following steps (1) the raw ore were crushed to produce fine particles, (2) performing rougher on the fine particles by adding ferric sulfate or ferric nitrate, sodium oleate, and cocoamine to obtain rough concentrate and rough tailing, (3) finely separating the rough concentrate to obtain the first part of concentrate, (4) re-grinding the rough tailing by ball mill, (5) performing rougher on the reground tailing to obtain reground rough concentrate and re-ground rough tailing, (6) performing cleaner on the reground rough concentrate to obtain the second part of concentrate, and (7) performing scavenger on the reground rough tailing to obtain the cleaned tailing.

Abstract: The present disclosure relates to privacy protection in a search process. According to a method, a target emotion vector is extracted from a search interaction, the target emotion vector representing emotional information in the search interaction. Respective emotion distances between the target emotion vector and respective emotion vectors associated with a plurality of text clusters are determined. The plurality of text clusters is clustered from a dictionary of text elements. A first number of text clusters are selected from the plurality of text clusters based on the determined respective emotion distances. The first number of text clusters have emotion distances larger than at least one unselected text cluster among the plurality of text clusters. A plurality of confused search interactions are constructed for the search interaction based on the first number of text clusters, and the plurality of confused search interactions are performed.

Abstract: A turbine fracturing system and a controlling method thereof, a controlling apparatus and a storage medium are provided. The turbine fracturing system includes: N turbine fracturing apparatuses, wherein each of the N turbine fracturing apparatuses comprises a turbine engine, and N is an integer greater than or equal to 2; a fuel gas supply apparatus connected to the N turbine engines, wherein the fuel gas supply apparatus is configured to supply fuel gas and distribute the fuel gas to the N turbine engines as gaseous fuel; and a fuel liquid supply apparatus connected to at least one of the N turbine engines and configured to supply liquid fuel to at least one of the N turbine engines in a case that at least one of a flow rate and a pressure of the fuel gas decreases.

Abstract: A mapping table updating method, a memory storage device and a memory control circuit unit are disclosed. The method includes: receiving, a plurality of operation commands from a host system; performing a first table updating operation according to a first operation command and a third operation command among the operation commands to read and update a first sub-mapping table and a third sub-mapping table from a rewritable non-volatile memory module; and after the first table updating operation is finished, performing a second table updating operation according to a second operation command among the operation commands to read and update a second sub-mapping table from the rewritable non-volatile memory module.

Abstract: Provided are semiconductor packages and methods of manufacturing the same. A semiconductor package includes a lower-layer structure including a substrate, a first chip including bumps on an active surface thereof, the first chip being electrically connected to the substrate via the bumps, an upper-layer structure formed of a first molding material, the first molding material covering an inactive surface of the first chip opposite and surrounding at least a portion of a lateral surface of the first chip, the inactive surface of the first chip being opposite to the active surface of the first chip, and a middle-layer structure including at least one interlayer, the at least one inter layer being formed of a second molding material different from the first molding material, the middle-layer structure being between the lower-layer and upper-layer structures and filling a space between the lower-layer and upper-layer structures.

Abstract: A display panel includes a display panel comprising a display layer and a touch layer arranged on a side of the display layer. The display layer includes a plurality of subpixels and a plurality of pixel openings. The plurality of subpixels includes first color subpixels and second color subpixels. The plurality of pixel openings includes first color pixel openings and second color pixel openings. A first color subpixel corresponds to a first color pixel opening. A second color subpixel corresponds to a second color pixel opening. An area of the first color pixel opening is larger than an area of the second color pixel opening. The touch layer includes a plurality of touch electrodes insulated from each other, and the plurality of touch electrodes includes a plurality of electrically connected metal grids.

Abstract: The present invention discloses a hydraulic fracturing system for driving a plunger pump with a turbine engine, including a fracturing equipment comprising a turbine engine fueled by natural gas or diesel as a power source, an exhaust system, and a plunger pump; a high-low pressure manifold; a blending equipment adapted to blend a fracturing base fluid; and a sand-mixing equipment adapted to provide the fracturing base fluid and a fracturing proppant to the high-low pressure manifold. A first end of the high-low pressure manifold is connected to the fracturing equipment through a connection pipeline. A second end of the high-low pressure manifold is connected to a wellhead. An exhaust end of the turbine engine is connected to the exhaust system whereas an output driving end of the turbine engine is connected to the plunger pump via a connection device. The connection device comprises at least a reduction gearbox.

Abstract: This disclosure generally relates to power generation methods and systems based on gas turbine engines, and particularly to mobile and adaptive power generation systems and methods based on gas turbine engine for supplying mechanical and/or electrical power for fracturing operations at an oil wellsite. Various systems, platforms, components, devices, and methods are provided for flexibly and adaptively configure one of more gas turbines, hydraulic pumps, and electric generators to support both fracturing and electric demands at a well site. The disclosed implementations enable and facilitate a mobile, adaptive, and reconfigurable power system to provide both mechanical and electric power for hydraulic fracturing operation, which is convenient to set up for operation and for transport.

Abstract: A bioenergetic-active material and use thereof are provided, and in particular to a bioenergetic-active material is a biodegradable polymer. A degradation product of the bioenergetic-active material is a metabolic intermediate via a tricarboxylic acid cycle and/or a glycolysis pathway, or a polymer monomer capable of being converted into a metabolic intermediate via a tricarboxylic acid cycle and/or a glycolysis pathway, or a polymer monomer capable of being converted into acetyl-coenzyme A. The degradation product of the bioenergetic-active material provides bioenergy for tissue cells via a tricarboxylic acid metabolic cycle or a glycolysis pathway, so that the problem that the traditional biodegradable material cannot continuously improve the stability of ATP in cells and the activity of related biomass is solved, and the bioenergetic-active material has a wide application prospect in the field of bone tissue regeneration, particularly in the aspect of large-sized bone defect repair.

Abstract: A fracturing device, including a power unit, wherein the power unit comprises a muffling compartment, a turbine engine, an air intake unit, and a starter; the air intake unit is communicated with the turbine engine through an intake pipe, and configured to provide a combustion-supporting gas to the turbine engine; the air intake unit is located at the top of the muffling compartment, the muffling compartment comprises an accommodation space, the turbine engine and the starter are located in the accommodation space, and the starter is configured to start the turbine engine, the starter comprises a first electric motor.

Abstract: A projection apparatus includes a main control circuit, a power supply, a display driving circuit, an audio playback component and a display component. The main control circuit is configured to send a first image signal to the display driving circuit. The display driving circuit is configured to receive the first image signal, and control the display component to display an image corresponding to the first image signal. The main control circuit is further configured to send a second image signal and an audio signal corresponding to the second image signal to the display driving circuit and the audio playback component, respectively. The display driving circuit is configured to receive the second image signal and control the display component to display an image corresponding to the second image signal, and the audio playback component is configured to receive the audio signal and play audio corresponding to the audio signal.

Abstract: A method for forging a niobium-tungsten alloy forged ring, including: (S1) subjecting an alloy ingot to turning, chamfering, spraying with an anti-oxidation coating, stainless-steel sheathing, heating and upsetting to obtain a primary pancake with a flat-die hammer, rapid-forging press or hydraulic press; (S2) subjecting an inner pole to wire electrical discharge machining to obtain a ring blank followed by machining to remove the stainless-steel sheath and oxide scale and defects; and subjecting the ring blank to fluorescent/dye penetrant inspection followed by vacuum stress-relief annealing; (S3) subjecting the ring blank to core shaft/saddle forging on the flat-die hammer or rapid-forging press to obtain a crude forged ring; and (S4) subjecting the crude forged ring to vacuum recrystallization annealing to obtain a desired forged ring.

Abstract: Turbine fracturing equipment is provided. The turbine fracturing equipment includes: a turbine engine, having an exhaust end configured to discharge exhaust gas; an exhaust pipe having a first end and a second end, the first end of the exhaust pipe being configured such that the exhaust gas discharged from the exhaust end of the turbine engine enters the exhaust pipe, and the second end of the exhaust pipe being configured to discharge the exhaust gas in the exhaust pipe; and an exhaust gas energy recovery device, the exhaust gas energy recovery device including a thermal energy recovery mechanism configured to recover thermal energy of the exhaust gas and a kinetic energy recovery mechanism configured to recover kinetic energy of the exhaust gas, at least a part of the thermal energy recovery mechanism and at least a part of the kinetic energy recovery mechanism are arranged in the exhaust pipe.

Abstract: An anti-PDl (programmed cell death 1) monoclonal antibody or an antigen-binding fragment thereof, a pharmaceutical composition thereof and use thereof. The heavy chain variable region of the monoclonal antibody comprises CDRs (complementary determining region) of amino acid sequences as shown in SEQ ID NO:9-11; and/or the light chain variable region of the monoclonal antibody comprises CDRs of amino acid sequences as shown in SEQ ID NO: 12-14. The monoclonal antibody can bind to PDl specifically, relieve immunosuppression of PDl on an organism specifically and activate T lymphocytes.

Abstract: A memory device includes at least one alternating stack of insulating layers and electrically conductive layers overlying a source layer, a memory opening vertically extending through the at least one alternating stack, and a memory opening fill structure located in the memory opening and containing a vertical stack of memory elements and a vertical semiconductor channel. The memory opening fill structure includes a lateral protrusion having a tapered sidewall surface such that a lateral extent of the lateral protrusion decreases with a vertical distance from the source layer. One of the electrically conductive layers of the at least one alternating stack is a taper-containing electrically conductive layer that is located at a level of the lateral protrusion of the memory opening fill structure.

Abstract: A performance match method of memory, a memory storage device and a memory control circuit unit are disclosed. The method includes: receiving a performance match command from a host system; in response to the performance match command, adjusting an operation setting of a memory storage device to match a performance of the memory storage device with a performance requirement of the host system; and interacting with the host system based on the adjusted operation setting.

Abstract: A display panel and a display device are provided. Data transfer wires electrically connected to first multiplexers pass through an active area and are electrically connected to data pins arranged in a chip binding area. Therefore, an area occupied by the data transfer wires in the border area is reduced, a space for wiring in the border area can be vacated and the border area can be narrowed. This follows the trend towards increasingly narrow borders of display devices.