Abstract: A peristaltic pump includes: a carrier; a drive assembly; a transmission assembly; and a peristaltic assembly. The drive assembly is arranged on the carrier. The peristaltic assembly and the drive assembly are arranged side by side on a same side of the carrier. A first accommodating space is provided between the drive assembly and the carrier. A second accommodating space is provided between the peristaltic assembly and the carrier. The transmission assembly is respectively disposed in the first accommodating space and the second accommodating space. The carrier is provided with an accommodating hole. A part of an output end of the drive assembly is in the accommodating hole. The output end of the drive assembly is connected to the peristaltic assembly through the transmission assembly.

Abstract: Disclosed are a NiTiNb shape memory alloy and a preparation method therefor, the preparation method specifically including the following steps: (1) uniformly mixing a Ni source, a Ti source, and a Nb source to obtain a mixed powder material; (2) cold-press molding the mixed powder material to obtain an alloy green compact; and (3) sintering the green compact to obtain the NiTiNb shape memory alloy. The preparation method of this disclosure, by introducing the Nb source powder for sintering and regulating the sintering temperature parameters, can prepare a NiTiNb alloy with uniform composition and high density, and enable the NiTiNb alloy to have an increased strength of above 1,600 MPa, an increased density of up to 92%, a compressive strength of higher than 2,000 MPa, a fracture strain of higher than 30%, and an 8% tensile recovery rate of higher than 50%, significantly improving the mechanical properties of the alloy.

Abstract: A composite material of a stylus tip includes at least a mixture of fiber and thermoplastic resin, the fiber and the thermoplastic resin are bonded to each other to jointly form a first porous structure, a second porous structure is formed inside the fiber, and the first porous structure and the second porous structure have resilience.

Abstract: A preparation method for a quartz reference sample for calibration of a luminescence dating instrument includes the following steps: preparing a quartz glass front wall, a quartz glass rear wall and an annular gasket; placing the annular gasket between the quartz glass front wall and the quartz glass rear wall, and placing a quartz sample in a center hole of the annular gasket; wrapping the loading device with aluminum foil, placing the loading device on a dedicated stand and positioning the dedicated stand at a measuring point of a reference radiation field; measuring an air kerma rate at the measuring point; calculating a conversion coefficient from air kerma to an absorbed dose of quartz; calculating an absorbed dose of the quartz sample; assessing the homogeneity of the quartz sample; and assessing the stability of the absorbed dose of quartz.

Abstract: An evaluation method for a potential toxic effect of Apolygus lucorum using an indoor living plant is provided, relating to the technical field of harmful organism toxicity determination and environmental safety evaluation of insect-resistant transgenic plants. The evaluation method includes determining a toxic effect of a chemical pesticide on the Apolygus lucorum and/or evaluating an effect of an insect-resistant transgenic plant on the Apolygus lucorum. The evaluation method can stably test the toxic effect of the chemical pesticide on the Apolygus lucorum by conducting multiple comparative analyses in indoor experiments, can comprehensively evaluate the effect of the insect-resistant transgenic plant on non-target organisms including the Apolygus lucorum, and can ensure that test insects receive sufficient nutrition, thereby extending an experimental period.

Abstract: A U-shaped e-cigarette peristaltic pump includes: a carrier; a drive assembly; a transmission assembly; and a peristaltic assembly. The drive assembly is arranged on the carrier. The peristaltic assembly and the drive assembly are arranged side by side on a same side of the carrier. A first accommodating space is provided between the drive assembly and the carrier. A second accommodating space is provided between the peristaltic assembly and the carrier. The transmission assembly is respectively in the first accommodating space and the second accommodating space. The drive assembly is connected to the peristaltic assembly through the transmission assembly.

Abstract: A method for evaluating an influence by gene-edited low-gossypol cotton on Aphis gossypii is provided, relating to the technical field of cotton safety evaluation. The method for evaluating an influence by gene-edited low-gossypol cotton on Aphis gossypii includes planting the gene-edited low-gossypol cotton indoors, collecting young leaves and inoculating nymphal Aphis gossypii on the leaves, rearing the nymphal Aphis gossypii, recording a number of adult Aphis gossypii deaths and a number of newly hatched nymphal Aphis gossypii, calculating an Aphis gossypii mortality rate and an average Aphis gossypii productivity, and evaluating the influence.

Abstract: Systems and methods for collecting trace data via a memory device are disclosed. One method may include receiving, by the memory device, a command from a computing device; identifying, by the memory device, first data associated with the command; storing, by the memory device, the first data in a first portion of volatile memory of the memory device for reading by the computing device; and accessing, by the memory device, a second portion of the volatile memory, wherein the second portion of the volatile memory is configured to store a copy of second data stored in a non-volatile memory of the memory device.

Abstract: Systems and methods for grouping memory addresses are disclosed. A storage device may include a first storage medium, a second storage medium, and a processor configured to: identify a first memory address; identify a first region of the first storage medium based on the first memory address; track activity of the first region; identify a second memory address based on tracking activity of the first region; and retrieve data associated with the second memory address from the first storage medium and store the data in the second storage medium.

Abstract: Disclosed is a novel multifunctional handcart comprises a load platform, wherein: a rear wheel is fixedly connected to the bottom of the load platform; a front wheel is fixedly connected to the bottom of the load platform; a guardrail is rotatably connected to a side wall of the load platform; a buckle is provided on a sidewall of the guardrail; a parking latch is rotatably connected inside the front wheel; a connecting piece is rotatably connected inside the front wheel; a handle is fixedly connected to one end of the connecting piece; a parking base is fixedly connected to a lower surface of the connecting piece; a telescopic rod is provided on a sidewall of the load platform; and a lap plate is provided on a sidewall of the telescopic rod.

Abstract: Systems and methods for collecting trace data via a memory device are disclosed. One method may include receiving, by the memory device, a command from a computing device; identifying, by the memory device, first data associated with the command; storing, by the memory device, the first data in a first portion of volatile memory of the memory device for reading by the computing device; and accessing, by the memory device, a second portion of the volatile memory, wherein the second portion of the volatile memory is configured to store a copy of second data stored in a non-volatile memory of the memory device.

Abstract: A device may include memory media configured as cache media; and one or more circuits configured to perform operations including receiving memory access information, performing a mixture model analysis based on the memory access information to produce one or more scores, and updating the memory media based on the one or more scores. The memory media may include determining that at least one of the one or more scores is above a threshold and loading a portion of memory corresponding to the at least one of the one or more scores to the memory media. Updating the memory media may include determining that at least one of the one or more scores is below a threshold and removing a portion of memory corresponding to the at least one of the one or more scores from the memory media.

Abstract: Provided is a cavity ionization chamber for measuring dose rate at a protection level. In the cavity ionization chamber, an ionization chamber sensitive volume includes a high-voltage electrode, and a collecting electrode, and an ionization chamber stem is connected to the ionization chamber sensitive volume and a first TNC interface. The ionization chamber stem is directly connected to an inner wall of the high-voltage electrode through a socket connector and is flush with a tangent plane of a spherical surface formed by the inner wall of the high-voltage electrode at an intersection of a straight line where the ionization chamber stem is located and the spherical surface. The first TNC interface is connected to one end of a guarding electrode through an inner shielding layer of a coax cable double shielded, and the other end of the guarding electrode penetrates into the ionization chamber sensitive volume.

Abstract: A U-shaped e-cigarette peristaltic pump includes: a carrier; a drive assembly; a transmission assembly; and a peristaltic assembly. The drive assembly is arranged on the carrier. The peristaltic assembly and the drive assembly are arranged side by side on a same side of the carrier. A first accommodating space is provided between the drive assembly and the carrier. A second accommodating space is provided between the peristaltic assembly and the carrier. The transmission assembly is respectively in the first accommodating space and the second accommodating space. The drive assembly is connected to the peristaltic assembly through the transmission assembly.

Abstract: An active edge caching method based on community discovery and weighted federated learning for selecting an optimal caching user and developing an optimal caching strategy; user grouping method based on community discovery is first provided, users are divided into different user groups according to users' mobility and social attributes, degrees of importance of different users are computed in each user group, and most important user is selected as a caching node to provide content distribution services; a content popularity prediction framework based on attention weighted federated learning is provided for combining attention weighted federated learning mechanism with deep learning algorithm to predict future user preferences for different content, so as to improve content popularity prediction accuracy and solve user privacy disclosure; finally, hot content is cached on selected caching users according to prediction results, to achieve goals of reducing network transmission latency and network operation cost

Abstract: A complex carbide for mining and mineral processing applications that are subject to severe additional metal, with the additional metal being a transition metal.

Abstract: A fan-shaped air suction spray nozzle automatically adjusting an air suction speed is provided in the present invention, which includes a spray nozzle body and a liquid channel, the spray nozzle body being provided with a liquid channel in communication with a nozzle hole, and further includes a pressure groove and an air intake channel, wherein an inlet section of the liquid channel is in communication with the pressure groove, and the air intake channel is in communication with the liquid channel after penetrating through the pressure groove; an air intake orifice plate is installed in the pressure groove through an elastic damping apparatus, and a change of the pressure at an inlet of the liquid channel causes the air intake orifice plate to move between the pressure groove and the air intake channel; the air intake orifice plate is provided with several through holes of the same or different sizes, which are configured to change the air intake volume in the liquid channel as the air intake orifice plate m