Abstract: Disclosed are a method and apparatus for synthesizing CF4 by activating SF6 using two-stage dielectric barrier discharge. A method for synthesizing CF4 by activating and degrading SF6 using a two-stage DBD plasma and introducing CO2 gas is proposed, where a first-stage DBD plasma reactor degrades SF6 molecules, decomposing them into fluorine atoms and other low-fluorine sulfur small molecules, which not only achieves effective degradation of SF6 but also provides a necessary fluorine source for subsequent CF4 synthesis; a second-stage DBD plasma reactor uses CO2 as a carbon source, which reacts with the low-fluorine sulfur small molecules produced in the first stage to generate CF4 gas, where a mixed gas containing the CF4 gas undergoes primary condensation to condense some fluorine-containing acidic waste gases into a liquid, and subsequently the remaining mixed gas undergoes secondary condensation to condense the CF4 gas into a liquid for collection.

Abstract: Disclosed is a method for constructing a machine learning model for recommending an airway opening posture angle. The method includes collecting independent variable data affecting a glottis exposure effect when opening a patient airway, conducting an airway opening experiment, taking a posture angle corresponding to an optimal glottis exposure image as an optimal posture angle, performing single-factor analysis on the independent variables, and screening out statistically significant independent variable data as candidate prediction variables. The method further includes preselecting machine learning models, training and verifying the models, evaluating using AUC values, and selecting a model with a highest AUC value as a prediction model for recommending the optimal airway opening posture angle.

Abstract: A content processing method including displaying a service interface of a first client, receiving a content input operation on the service interface, displaying an input method panel based on a query sign input by the content input operation, and displaying, in the input method panel, a first query result corresponding to content input by the content input operation.

Abstract: A battery cell, a battery, and an electric device. The battery cell has a capacity of C and comprises a casing, and at least a partial region of the casing has a tensile strength of Rm at a temperature of 25° C., wherein Rm and C satisfy: 250 MPa?Rm?2000 MPa and 25 Ah?C?550 Ah.

Abstract: Disclosed in the embodiments of the present application are a battery cell, a battery and an electric device. The battery cell comprises: an electrode assembly, wherein the electrode assembly comprises a positive electrode sheet, the positive electrode sheet comprises a positive electrode active material capable of realizing reversible de-intercalation and intercalation of metal ions, and the positive electrode active material comprises a compound containing nickel; and a case, which is used for accommodating the electrode assembly, wherein the melting point of at least some regions of the case is p, and p satisfies: 1200° C.?p?2000° C. According to the battery cell, the battery and the electric device in the embodiments of the present application, the reliability of the battery cell can be improved.

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: This document provides methods and materials involved in binding a binder (e.g., an antibody, antigen binding fragment, antibody domain, CAR, cell engager, and/or ADC) to a BAFF-R polypeptide. For example, binders (e.g., antibodies, antigen binding fragments, antibody domains, CARs, cell engagers, and/or ADCs) that bind to a BAFF-R polypeptide and methods and materials for using one or more such binding molecules to treat a mammal (e.g., a human) having cancer (e.g., one or more B-cell cancers) are provided.

Abstract: A shell, a battery cell, a battery, and an electric device. At least partial area of a shell 211 has a tensile strength Rm at a temperature of 25° C. At least part of the shell 211 comprises first shell walls 2112, the average thickness of the first shell walls 2112 is T, Rm and T satisfy the following: 250 MPa?Rm?2000 MPa, 0.05 mm?T?0.5 mm, and 60 mm·MPa?T×Rm?500 mm·MPa.

Abstract: Disclosed embodiments relate to MPD well drilling methods, for example detecting fluid gains or losses even in transient conditions. For example, data relating to one or more parameter of the drilling system may be corrected/filtered using one or more technique. The corrected data can be used to calculate flowrate difference (DeltaFR), and possible fluid losses or gains in the system can be detected by calculating a virtual trip tank (VTT) using DeltaFR. In some embodiments, the technique can compensate for drillstring movement. In some embodiments, an adaptive moving average may be applied to the data to reduce noise. In some embodiments, bilateral filtering may be applied to the data, for example to address issues arising from movement of a choke in the drilling system. In some embodiments, updated baselines may be applied to remove any offset. Systems related to such methods are also disclosed.

Abstract: An identity authentication method based on a covert channel, an apparatus thereof and an application thereof are provided. The identity authentication method includes: transmitting user identity information used for authentication in a covert channel or an overt channel, and generating misleading or even induced forged identity information for confused transmission in the channel; then dividing a key and transmitting the key in two channels, so that key management ability is enhanced, and difficulty of key interception is greatly improved; and in an encrypted communication stage, embedding some short tag information in the covert channel to continuously authenticate a client. The covert channel is also used to renegotiate about replacing the key when transmitting a certain amount of data or important information, thus improving security of communication data. Finally, a method of constructing a covert channel based on the order of the inter-packet delays is further provided.

Abstract: Disclosed is an apparatus for honeycomb ceramic-based plasma degradation of SF6 in the technical field of sulfur hexafluoride degradation, including a DBD reactor, where a gas supply unit is arranged on a left side of the DBD reactor, a power supply unit is arranged at a bottom of the DBD reactor, a treatment unit is arranged on a right side of the DBD reactor, and the DBD reactor is connected to the gas supply unit via a gas pipe and electrically connected to the power supply unit. The apparatus breaks away from the conventional single-tube structured inner electrode by adopting a novel detachable honeycomb ceramic structure as the inner electrode of the reactor; its porous structure provides good channels for gas flow and distribution; the porous channels facilitate the adsorption of catalysts and decomposition products, effectively promoting the degradation process.

Abstract: A battery cell, a battery, and an electric device. The battery cell comprises: an electrode assembly comprising a positive electrode sheet and a negative electrode sheet, the positive electrode sheet and the negative electrode sheet form a flat region; and a housing comprising a first wall portion and two second wall portions, the two second wall portions being respectively located on two sides of the flat region in a first direction. The first wall portion comprises a shell body and a pressure relief portion, wherein the shell body is arranged around the periphery of the pressure relief portion, a notch groove is formed in the pressure relief portion and has a first groove wall section obliquely extending in the first direction on a bottom wall thereof, and the first groove wall section is at an angle to the first direction.

Abstract: A housing, a battery cell, a battery, and an electrical device. An end portion of the housing along a first direction is provided with a housing opening, the housing comprises a first side plate and a second side plate arranged along the circumferential direction of the housing opening, a connecting plate is connected to the first side plate and the second side plate, at least part of an outer surface of the connecting plate comprises a curved face, the connecting plate comprises a first plate portion and a second plate portion, and on the first direction, the second plate portion is located on the side of the first plate portion close to the housing opening. The maximum thickness of the second plate portion is greater than or equal to the maximum thickness of the first plate portion.

Abstract: A battery cell may include a bare cell, a top cover, and a housing. The housing has an opening, the housing being connected to the top cover, the top cover covering the opening to form an accommodating space with the housing, the bare cell being disposed in the accommodating space, the opening being located on a side of the housing with the largest area. A side of the bare cell is provided with an electrode lead-out member, the housing comprising an electrode component or the housing being connected to an electrode component, the electrode lead-out member being connected to the electrode component, and the electrode lead-out member being a bent structure.

Abstract: A battery cell is disclosed, where the battery cell includes: a housing, the housing including a bottom wall, a top plate, and a plurality of side walls, where the side walls connect the top plate and the bottom wall, and the bottom wall, the plurality of side walls, and the top plate form an accommodating space; a cell, disposed in the accommodating space; and a support plate, disposed in the accommodating space and is clamped between the side wall and the cell.

Abstract: The provided is an inflatable whitewater kayak (hereinafter referred to as the kayak) with a narrow hull and a U-shaped bottom, which is a high-pressure narrow-type bottom weighted boat. The high-pressure narrow-type bottom weighted boat includes an inflatable and deflatable tubular body, where the tubular body includes a bow, a middle segment, and a stern; the bow, the middle segment and the stern are connected sequentially; the middle segment includes a bottom plate and two side tubes; the two side tubes are symmetrically disposed at two sides of the bottom plate; the bottom plate and the two side tubes define a central seating area; the side tube includes at least two sidewall subtube portions; and for the single side tube, the sidewall subtube portions are connected sequentially along a vertical direction to form a whole.

Abstract: A battery cell includes: a housing, where the housing forms an accommodating space; an electrode assembly, where the electrode assembly is disposed within the accommodating space; a top cover, where the top cover is connected to the housing and covers the accommodating space, the top cover is provided with a protrusion, the protrusion is located within the accommodating space, and the protrusion is configured to shield between the electrode assembly and at least a portion of the connection at which the top cover is connected to the housing.

Abstract: The disclosure provides a method, system, and apparatus for automatically sensing the orientation of a subcomponent of a drill string for connection of a diversion flow line to the side port of a subcomponent to enable continuous circulation. In one aspect, the disclosure provides an automated positioning system (APS) for a continuous circulation system (CCS). In one example, the APS includes: (1) an orientation detector configured to generate location signals representing an existing position of a subcomponent of a drill string according to an orientation indicator associated with the subcomponent, and (2) one or more processors to perform operations that include placing a side port of the subcomponent in position for connecting to a diversion flow line by moving the drill string according to the location signals and determining when the subcomponent is in the position based on the location signals.

Abstract: Collection devices with valves for liquid specimens are disclosed. In an embodiment, the disclosure provides a collection device including a reservoir having a sealed cavity, the sealed cavity being under a negative pressure; a delivery tube in communication with the sealed cavity of the reservoir and having a delivery inlet, a delivery outlet, and a valve disposed between the delivery inlet and the delivery outlet, the valve being configured to control the communication and blocking between the delivery inlet and the delivery outlet, and an angle being formed by an extension line of the delivery inlet an extension line of the delivery outlet; and a piercing component for piercing a tissue is connected with the delivery inlet of the delivery tube.

Abstract: An ammonium complex system-based method for separating and purifying lead, zinc, cadmium, and copper, comprising the following steps: a zinc-containing raw material is leached using a leach solution to produce a leached solution; a filtrate and a filter residue are produced by filtration; the filtrate is mixed with metal lead to displace copper, undergoes a solid-liquid separation to produce a first separated liquid, is mixed with metal cadmium to displace lead, undergoes a solid-liquid separation to produce a second separated liquid, is mixed with metal zinc to displace cadmium, and undergoes a solid-liquid separation to produce a third separated liquid; and, the third separated liquid is electrolyzed to produce metal zinc, and an electrolytic solution is returned to the leaching step.