Abstract: A method for constructing a multistage network includes: deploying a plurality of nodes; constructing the upper network with at least one node of the plurality of nodes; and in response to determining there is an isolated node, determining an intermediate node for the isolated node and adding the isolated node into the upper network or one of the at least one sub-network according to the intermediate node.

Abstract: Provided are method and system for rapidly predicting foaming tendency of edible frying oil, including: heating the oil; immersing a polar component content detection probe into the oil to measure an initial polar component content of the oil; at a frying state, removing the detection probe from the oil, placing frying food into the oil and frying the same taking out the frying food from the oil after frying, and measuring the largest frying oil foam height and recording the same as an initial foam height; at an air introduction state, immersing the detection probe and introducing air into the oil, and continuing to introduce air and heat thereinto until the polar component content in the oil is 10%; repeating the frying state; and fitting measurements and parameters into a formula.

Abstract: The present invention belongs to the field of medicinal chemistry and relates to a class of substituted tricyclic compounds as PRMT5 inhibitors and the use thereof. Specifically, the present invention provides a compound represented by formula (A) or an isomer, pharmaceutically acceptable salt, solvate, crystal or prodrug thereof, a preparation method therefor, a pharmaceutical composition containing the compounds, and the use of the compounds or the composition for treating a disease mediated by PRMT5. The compounds of the present invention show significant inhibitory activity on PRMT5.

Abstract: Methods, systems, and devices for mitigating memory die misalignment are described. A memory system may receive a command to write data to a memory device including a memory die. The memory system may determine whether the data indicated by the command (e.g., a first set of data) satisfies a threshold size. If the first set of data satisfies the threshold size, the memory system may determine whether data currently in a write buffer aligns with a boundary of the memory die. For example, depending on the data currently in the buffer, adding the first set of data to the buffer may result in die misalignment for the first set of data. To mitigate die misalignment, the memory system may pad data (e.g., add dummy data) to the write buffer, such that the padding aligns the data with the die boundary.

Abstract: In a tower integrated by the heating and drying section and the cooling section, both sides of the heating and drying section housing are provided with an air inlet box and an air outlet box; the air inlet box is communicating with a heat exchanger and distribution pipes in the heating and drying section housing, the air outlet box is communicating with distribution pipes in the heating and drying section housing and a dust remover; both sides of the cooling section housing are provided with an air inlet box and an air outlet box; the air inlet box is communicating with a heat exchanger and distribution pipes in the cooling section housing; the air outlet box is communicating with distribution pipes in the cooling section housing and a dust remover. The integral device improves the heat exchange effect and preventing the polypropylene particles from aging.

Abstract: Provided is a method for recycling lead iodide and a substrate of a waste perovskite device. The method includes steps as follows: preparing an iodide solution having a set concentration; immersing the waste perovskite device in the iodide solution for dissolution until a perovskite substance of the waste perovskite device is not dissolved, and extracting supernatant; adding water to the supernatant for dilution, and obtaining lead iodide crystals containing a small quantity of impurities; washing the lead iodide crystals containing a small quantity of impurities, adding acid to treat the lead iodide crystals, washing the lead iodide crystals with isopropanol and ether to obtain lead iodide powder, and drying the lead iodide powder to obtain obtaining recycled lead iodide; and cleaning and recycling a substrate generated. The lead iodide is recycled according to Le Chatelier's principle, which achieves safe, environmentally friendly and low-cost recycling.

Abstract: Provided is a production method of a high-rate lithium iron phosphate positive electrode material comprising first, weighing an iron source and a lithium source in a molar ratio of 1:1-1:1.05, then weighing 5-15% of carbon source and 0-1% of metal ion doping agent based on the total mass of the iron source and lithium source, adding water to the above weighed materials, ball milling and sand grinding the obtained slurry, so that the D50 after the sand grinding is controlled to be 100-200 nm, then spraying the mixture to obtain a precursor, putting the precursor into a sintering furnace for sintering at 650-700° C. under the protection of nitrogen gas, cooling to obtain a sintered material, then pulverizing the sintered material, sieving the pulverized material and removing iron to obtain the lithium iron phosphate. The prepared lithium iron phosphate has a good rate capability and a good cycle stability.

Abstract: Disclosed are a dual-motor multi-gear hybrid transmission system and a vehicle. The dual-motor multi-gear hybrid transmission system includes an engine, a first motor, a second motor, a first clutch, a second clutch, a first planet row, a second planet row, a first input shaft, a second input shaft, a third input shaft and a brake assembly. The first input shaft is connected to the engine through the first clutch. The second input shaft is connected to the engine through the second clutch, and the second input shaft is sleeved outside the first input shaft. The first motor is connected to the engine. The second motor is connected to the first planet row through the third input shaft. The brake assembly is configured to brake the first planet row and/or the second planet row.

Abstract: Provided is a two-stage reverse-torque bent screw orientation tool. An existing bent screw orientation technology has the technical problems of large friction resistance, difficult control of a borehole track, a low drilling speed and the like, and restricts economic, safe and long-acting development of oil and gas. In order to solve the above problems, the two-stage reverse-torque bent screw orientation tool is invented and composed of a first-stage clutch mechanism and a second-stage clutch mechanism, and the first-stage clutch mechanism and the second-stage clutch mechanism are both composed of a battery, a battery compartment, a pressure sensor, an electromagnetic valve, a body, a plug, a piston, an outer tooth cylinder, an inner tooth cylinder, a transmission cylinder, a connecting cylinder, a bearing, a limiting cylinder, a lower joint, a thrust bearing, a battery compartment, a circuit board, a cover plate and the like.

Abstract: Disclosed are a wireless remote control method and system for controllable rotary sliding guiding drilling. An upper end of a controllable rotary sliding guiding drilling mechanism is provided with a drill rod; and the wireless remote control system for controllable rotary sliding guiding drilling further comprises: an MWD arranged at a lower end of the controllable rotary sliding guiding drilling mechanism; a bent screw drill tool mounted at a lower end of the MWD; a drill bit mounted at a lower end of the bent screw drill tool, the drill bit being connected with the bent screw drill tool through a connector; and a clutch module mounted on the controllable rotary sliding guiding drilling mechanism, the clutch module comprising an electromagnetic valve, a processor, an internal pipe pressure sensor, an external pipe pressure sensor and a wireless data transmission module.

Abstract: The present disclosure provides a target object tracking method. In this disclosure, the point cloud data sequence in the target scene is collected by lidars and the first frame of cloud point data is extracted; the bounding box of the target object in the first frame of cloud point data is determined using the preset three-dimensional target tracking algorithm. All the target point clouds in the bounding box are extracted to generate the first template point cloud. The template expansion processing is performed using the preset ATG algorithm to obtain the second template point cloud. The point cloud features in the search area of other frames of point cloud data are extracted, and are compared with the second template point cloud and the reference template point cloud to obtain the comparison result. Based on the comparison result, the tracking result of the target object is generated and displayed.

Abstract: A method of crowdsourcing annotation for medical image data based on image comparison, includes developing an annotation task; acquiring and verifying medical images according to requirements of the annotation task, and performing statistics on the medical images that meet verification standards to obtain an amount of image data acquired; archiving the medical images that meet the verification standards to form a medical image database; setting up annotation rules, and generating annotation schemes and annotation samples according to the requirements of the annotation task and annotation rules; distributing the medical images in the medical image database to multiple crowdsourcing annotation sides, so that each medical image being annotated by the multiple crowdsourcing annotation sides; annotating, by the crowdsourcing annotation sides, the distributed medical images according to the annotation schemes and the annotation examples to form the annotated images; and merging multiple annotated images correspondi

Abstract: A flexible display panel and a preparation method therefor, and a display device and a display module are provided. The flexible display panel includes a planar area, a first bending area, a second bending area and a corner bending area. The corner bending area is connected to a corner of the planar area and is connected between the first bending area and the second bending area, and is provided with a plurality of first hole groups, where the corner bending area is bent with a width of a first hole group in middle of the corner bending area increasing and a width of a first hole group in an edge area on a side of the corner bending area away from the planar area decreasing.

Abstract: A system and method for improving the water quality of a dehydration tower in a purified terephthalic acid device includes a dehydration washing device, a tail gas condensation device communicating with the top of the dehydration washing device, and a water separation device communicating with the tail gas condensation device. The system reduces energy consumption. The tail gas condensation device uses low-pressure vapor of about 0.05 MPa generated by an Nm-th-stage condenser as a heating medium. Working media are water and the low-pressure vapor, and no organic phase is involved in a process, and a reaction is stable and intrinsically safe. The water in the water separation tower is purified water and concentrated water, the purified water is returned to the top of the dehydration tower, and the concentrated water is mixed with a mother liquor and then enters the dehydration tower.

Abstract: An apparatus for removing VOC in polypropylene by steaming process includes: a cyclone separator, used for separating polypropylene particles and entraining gas from an upstream pneumatic system; a preheating tower, communicating with a discharge hole of the cyclone separator, a first steam inlet being provided on a tower body of the preheating tower, and a tail gas outlet being provided on top of the preheating tower; and a devolatilization tower, communicating with a discharge hole of the preheating tower, a second steam inlet being provided on a tower body of the devolatilization tower, a steam outlet being provided on top of the tower, and the steam outlet being communicating with the first steam inlet.

Abstract: User equipment includes a first antenna, a second antenna, a first transceiver coupled to the first antenna, a second transceiver coupled to the second antenna, and processing circuitry communicatively coupled to the first transceiver and the second transceiver. The first transceiver receives or transmits a first signal via the first antenna, and the second transceiver receives or transmits a second signal via the second antenna. The processing circuitry receives an indication that a signal characteristic of the first signal is less than a first threshold, and decreases power to the first antenna, the first receiver, or both, based on the signal characteristic of the first signal being less than the first threshold.

Abstract: A user equipment (UE) is configured to operate in a non-standalone carrier aggregation (NSA CA) mode. The UE is also configured to determine an NSA CA bandwidth (BW) associated with bands being used for the NSA CA mode, determine a standalone carrier aggregation (SA CA) BW associated with bands being used for a SA CA mode after the UE is switched to the SA CA mode and determine, based on at least the NSA CA BW and the SA CA BW, for the UE to remain in the SA CA mode or switch to the NSA CA mode.

Abstract: Disclosed are molybdenum trioxide with a novel molecular structure and a chiral octahedral crystal phase structure, octamolybdate of the molybdenum trioxide and a preparation method of the octamolybdate. A molecular formula of ?-MoO3 with the novel molecular structure and the chiral octahedral crystal phase structure is Mo8O24, and the generated nano-molybdate based on the octamolybdate is a new species, so that a new member is added to inorganic salt chemical industry, and an application of the nano-molybdate changes all aspects of daily life of people, for example, the nano-molybdate having a disinfection function and insoluble in water is used in agricultural crop production and quality improvement, freshwater aquaculture and mariculture, sanitary disinfection, various anti-microbial and anti-tumor activities, batteries and various energy storages, semi-conductors, anti-biochemical weapons, intelligent materials and other aspects.

Abstract: A display panel and a display device are provided. The display panel includes a substrate; light-emitting devices, pad groups on a side of the substrate, and first metal elements and second metal elements at a side of the pad groups close to the substrate. Each pad group includes a first pad and a second pad, and at least one pad group corresponds to one light-emitting device. In one pad group corresponding to one same light-emitting device, along a direction perpendicular to a plane of the substrate, the first pad at least partially overlaps the first metal elements with an overlapping area of S1 and the second pad at least partially overlaps the second metal elements with an overlapping area of S2 where |S1?S2|/S1?5%, or the first pad does not overlap the first metal elements and the second pad does not overlap the second metal elements.

Abstract: The present disclosure provides an environment-friendly wrapping-free heat-not-burn naked tobacco product. The tobacco product includes, in percentage by mass, 20-60% of mixed powder, 10-40% of a porous carrier material, 15-50% of a tobacco extraction mixture, 1-10% of a particle aggregation inhibitor and 10-40% of a binder. The environment-friendly wrapping-free heat-not-burn naked tobacco product can effectively inhibit emission of harmful substances in smoke; meanwhile, a paper tube, a filter tip and a blocking piece which are required for a traditional cigarette are not needed, the naked tobacco product is utilized, the difficulty of a production process is lowered, raw materials are reduced, and the tobacco product is more environmentally friendly. According to the tobacco product with the proportion of components, the smoke amount is abundant, the fragrance is good, smoke is soft and fine, offensive firewood smell is avoided, irritation is small, the remaining taste makes people comfortable.