Abstract: A positive electrode active material includes a core containing Li1+xMn1yAyP1?zRzO4, a first coating layer covering the core and containing a crystalline pyrophosphate MaP2O7 and a crystalline oxide M?bOc, and a second coating layer covering the first coating layer.

Abstract: The present disclosure provides a lithium-ion battery, the lithium-ion battery comprises a positive electrode plate, a negative electrode plate, a separator and an electrolyte, the positive active material comprises a layered lithium-containing compound, the negative active material comprises graphite, the positive film and the negative film satisfy a relationship 0.3?(OIc×PDc)/(OIa×PDa)?20.0. The present disclosure can make the lithium-ion battery have smaller swelling and higher charging capability, and also make the lithium-ion battery have excellent cycle life and excellent safety performance during the long-term fast charging process.

Abstract: A method for measuring drop time of a control rod cluster integrated with a rod position measurement device is provided, wherein the method is used to measure the drop time of each control rod cluster, and includes: Si, monitoring a voltage Ua of coils in Group A to capture a rod cluster drop signal; S2, searching a point (tmax, Vmax) with a maximum drop speed or with a local maximum drop speed; S3, retroactively calculating, from tmax, an end of a time period T4 when the control rod cluster starts to drop; S4, retroactively searching, from a minimum value point of a drop reference signal DROPref, a start of the time period T4 when the drop reference signal DROPref drops from a maximum value to 33% thereof; and S5, determining, from tmax forward, a time point t6 when a drop speed of the control rod cluster is lower than 0.

Abstract: Provided is a main unit of a nursing machine, including a sewage bucket accommodating sewage, a water blocking device, a first water tank, a second water tank, a water pump, a first waterway, a second waterway, and a third waterway. The water blocking device includes a labyrinth-type channel communicating with a water storage cavity and a float accommodation cavity, and multiple division boards extending up and down to perform separation to form the labyrinth-type channel. The labyrinth-type channel is located between the water storage cavity and the float accommodation cavity, and communicates between the water storage cavity and the float accommodation cavity. The second water tank is provided with a first water inlet and a first water outlet. The water pump joins the third waterway.

Abstract: The invention discloses an anti-phenacetin monoclonal antibody hybridoma cell strain AD, a preparation method and application thereof, and relates to the technical field of food safety immunodetection. The monoclonal antibody hybridoma cell strain is named monoclonal cell strain AD and the number CGMCC19681. The Phe-BA obtained by the hydrolysis of the reaction product of the phenacetin metabolite acetaminophen and ethyl 4-bromobutyrate is used as the hapten, and the hapten is coupled with the carrier protein to prepare the immunogen Phe-BA-BSA. After the mice were immunized with the immunogen Phe-BA-BSA, they were fused with myeloma cells by PEG method, screened by indirect competitive enzyme-linked immunosorbent assay and subcloned five times to obtain hybridoma cell lines. The monoclonal antibody secreted by the cell line can be made into a phenacetin detection kit, which has good affinity and detection sensitivity for phenacetin, and can be used for immunodetection of phenacetin residues in food.

Abstract: The present invention discloses a large-scale model testing system of a floating offshore wind power generation device, and a method for manufacturing the large-scale model testing system. The large-scale model testing system comprises a floating wind power generation device model, model response measurement systems and environmental parameter measurement systems. The floating wind power generation device model comprises a floating foundation and a tower, wherein a wind turbine is connected to the top of the tower. A plurality of anchoring devices is connected to the side surface of the floating foundation. Each model response measurement system comprises an IMU unit, a wind turbine monitoring unit and an anchoring tension measurement unit. Each environmental parameter measurement system comprises a buoy-type wave height meter, a wind speed and direction meter and a flow velocity and direction meter.

Abstract: To specify, collect, and manage data that matches a usage purpose of a user with high efficiency among enormous medical data. In a case where prescribed medical data is data worthy of evaluation for a user who manipulates a user terminal, a communication unit receives an evaluation result. A database generation unit selectively reads the medical data the evaluation result of which has been received by the communication unit among the medical data accumulated in a medical information storage, and stores the medical data in the storage unit. This processing is repeated every time when an evaluation result is received to generate a database.

Abstract: An apparatus for treating tinnitus through stimulating multiple acupoints with a multi-electrode electric pulse. A control terminal controls a first MCU micro-control module and the second MCU micro-control module to allow the second MCU micro-control module to output a variety of different pulse signals, and the different pulse signals are respectively output to an electric-pulse output circuit and an electric-pulse conversion circuit. The pulse signal output to the electric-pulse output circuit is a carrier signal. The pulse signal output to the electric-pulse conversion circuit is converted to a modulating wave by the electric-pulse conversion circuit. The modulating wave and the carrier signal are both output to the electrical-pulse output circuit. After a modulation, a transcutaneous electric-pulse stimulation signal is output by an output port, and is transmitted to an electrode sheet attached to the corresponding acupoint on human body through an electrode wire to stimulate the acupoint.

Abstract: Provided is a main unit of a nursing machine, including a sewage bucket accommodating sewage, a water blocking device, a first water tank, a second water tank, a water pump, a first waterway, a second waterway, and a third waterway. The water blocking device includes a labyrinth-type channel communicating with a water storage cavity and a float accommodation cavity, and multiple division boards extending up and down to perform separation to form the labyrinth-type channel. The labyrinth-type channel is located between the water storage cavity and the float accommodation cavity, and communicates between the water storage cavity and the float accommodation cavity. The second water tank is provided with a first water inlet and a first water outlet. The water pump joins the third waterway.

Abstract: An ionization chamber chip, a nano-aperture ion source, a proton beam writing system, and a method of fabricating an ionization chamber chip. The method comprises the step of providing a first substrate comprising a first depression formed in a back surface thereof; providing a backing element attached at the back surface of the first substrate such that a chamber is formed comprising at least the first depression; forming a gas inlet in the first substrate in fluid communication with the chamber; and forming a first aperture structure in the first substrate in fluid communication with the chamber.

Abstract: An ionization chamber chip, a nano-aperture ion source, a proton beam writing system, and a method of fabricating an ionization chamber chip. The method comprises the step of providing a first substrate comprising a first depression formed in a back surface thereof; providing a backing element attached at the back surface of the first substrate such that a chamber is formed comprising at least the first depression; forming a gas inlet in the first substrate in fluid communication with the chamber; and forming a first aperture structure in the first substrate in fluid communication with the chamber.