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

Abstract: Methods, systems, and storage media for generating leads for vendors through a social media program are disclosed. Exemplary implementations may: estimate a conversion rank for an online promotion for a targeted prospect based at least in part on historical data of conversion ranks for a sample of the targeted prospect; simulate the online promotion to the sample of the targeted prospect; calculate a likelihood of conversion based on the simulating of the online promotion to the sample of the targeted prospect; and cause display of the likelihood of conversion as a confidence score.

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

Abstract: An example method is provided for a first host running a client software to provision a virtual machine on the first host in a virtualized computing environment including one or more hosts. The method may include generating a license key message, transmitting the license key message to a second host via a peer-to-peer (P2P) network including the first host and the second host, receiving a determination of the second host whether the virtual machine can be provisioned on the first host via the P2P network, and deciding whether to provision the virtual machine on the first host based on the determination. Some example license key messages may include a license key and a seat number and a sharable level indicator associated with the license key.

Abstract: The present invention relates to the technical field of well drilling, and discloses a plugging agent for temperature-resistant calcium-resistant water-based drilling fluid used in oil and gas reservoir protection, a drilling fluid, and uses of the plugging agent and the drilling fluid. The plugging agent for temperature-resistant calcium-resistant water-based drilling fluid used in oil and gas reservoir protection contains acrylamide-diallyldimethylammonium chloride copolymer modified graphene, wherein in the acrylamide-diallyldimethylammonium chloride copolymer, a molar ratio of structural units provided by acrylamide to structural units provided by diallyldimethylammonium chloride is 1:5-15, and the number-average molecular weight of the acrylamide-diallyldimethylammonium chloride copolymer is 15,000-30,000.

Abstract: The present invention relates to the technical field of well drilling, and discloses a plugging agent for temperature-resistant calcium-resistant water-based drilling fluid used in oil and gas reservoir protection, a drilling fluid, and uses of the plugging agent and the drilling fluid. The plugging agent for temperature-resistant calcium-resistant water-based drilling fluid used in oil and gas reservoir protection contains acrylamide-diallyldimethylammonium chloride copolymer modified graphene, wherein in the acrylamide-diallyldimethylammonium chloride copolymer, a molar ratio of structural units provided by acrylamide to structural units provided by diallyldimethylammonium chloride is 1:5-15, and the number-average molecular weight of the acrylamide-diallyldimethylammonium chloride copolymer is 15,000-30,000.

Abstract: A hardware system for data conversion, comprising: a space searching circuit, for searching space characters in a data stream of original data after receiving an instruction sent by a server to read and write data; a length detecting circuit, for detecting a length of data in the data stream of original data according to two adjacent space characters; a parallel encoding circuit, for converting the original data according to the data format in the instruction according to the length and the data stream of original data and outputting the converted data. The hardware system for data conversion is embedded in a storage device. The entire data conversion process could not only improve the efficiency of data conversion, but also does not occupy the resources of the CPU and DRAM of the server or the MCU of the SSD controller.

Abstract: An example method is provided for a first host running a client software to provision a virtual machine on the first host in a virtualized computing environment including one or more hosts. The method may include generating a license key message, transmitting the license key message to a second host via a peer-to-peer (P2P) network including the first host and the second host, receiving a determination of the second host whether the virtual machine can be provisioned on the first host via the P2P network, and deciding whether to provision the virtual machine on the first host based on the determination. Some example license key messages may include a license key and a seat number and a sharable level indicator associated with the license key.

Abstract: An optical-readout synaptic device based on SiOxNy and a preparation method thereof are provided. The device includes a surface plasmonic waveguide and a memristor; the surface plasmonic waveguide has a vertical three-layer structure that a second metal layer, a SiNx dielectric layer and a first metal layer are successively arranged from top to bottom; the memristor has a vertical four-layer structure that a second electrode layer, a second resistive layer, a first resistive layer and a first electrode layer are successively arranged from top to bottom; the memristor is embedded in the surface plasmonic waveguide; and, the first resistive layer and the second resistive layer of the memristor serve as an optical signal transmission channel that is horizontally connected with the SiNx dielectric layer of the surface plasmonic waveguide. The present invention realizes an optical-readout of synaptic weight and has incomparable advantages over a conventional electrical-readout synaptic device.

Abstract: A hardware system for data conversion, comprising: a space searching circuit, for searching space characters in a data stream of original data after receiving an instruction sent by a server to read and write data; a length detecting circuit, for detecting a length of data in the data stream of original data according to two adjacent space characters; a parallel encoding circuit, for converting the original data according to the data format in the instruction according to the length and the data stream of original data and outputting the converted data. The hardware system for data conversion is embedded in a storage device. The entire data conversion process could not only improve the efficiency of data conversion, but also does not occupy the resources of the CPU and DRAM of the server or the MCU of the SSD controller.

Abstract: An approach for fingerprinting large data objects at the wire speed has been disclosed. The techniques include Fresh/Shift pipelining, split Fresh, optimization, online channel sampling, and pipelined selection. The architecture can also be replicated to work in parallel for higher system throughput. Fingerprinting may provide an efficient mechanism for identifying duplication in a data stream, and deduplication based on the identified fingerprints may provide reduced storage costs, reduced network bandwidth consumption, reduced processing time and other benefits. In some embodiments, fingerprinting may be used to ensure or verify data integrity and may facilitate detection of corruption or tampering. An efficient manner of generating fingerprints (either via hardware, software, or a combination) may reduce a computation load and/or time required to generate fingerprints.