Abstract: Discloses are a method for preparing fluff pulp from bamboos, and the fluff pulp prepared thereby. The method comprises the following steps: treating the bamboos with high-concentration alkali at a relatively mild temperature, after a certain period of treatment, replacing a treatment liquid for separating hemicellulose with a weak black liquor; Kraft cooking the treated bamboos to obtain unbleached bamboo pulp, removing rejects in the unbleached bamboo pulp by using a slotted screen; then removing miscellaneous cells by using a microporous sieve; carrying out two stages of oxygen delignification on the screened pulp; carrying out ECF bleaching treatment of a D0EpD1P process; and finally obtaining the bamboo fluff pulp which has high whiteness, low DCM extract content, low ash content and long fiber length, contains 4.2-4.6 million fibers per gram, and has relatively high bulkiness.

Abstract: Disclosed are a backlight module and a display apparatus. The backlight module includes a light guide plate (1), a light emitting surface (11) is divided into a light emitting region (A) and a peripheral region (B) surrounding the light emitting region (A); a lamp bar (2) having a light emergent direction facing a light incident surface (13); and a circuit board (3) connected with the lamp bar (2) and positioned at a side of a bottom surface (12) of the light guide plate (1), an overlapping portion between the circuit board (3) and the light guide plate (1) is formed into a connection region, and an orthographic projection of the connection region on the light emitting surface (11) is completely covers the peripheral region (B) and at least partially covers the light emitting region (A).

Abstract: The present application relates to the field of photographing auxiliary apparatus, more particularly, to a gimbal. The gimbal comprising a handle assembly, a first motor assembly, a second motor assembly, a third motor assembly, a clamping assembly, a control assembly and a target tracking assembly. The target tracking assembly is mounted on the third motor assembly and connected with the control assembly. The control assembly may be used to control the first motor assembly, the second motor assembly and the third motor assembly to rotate based on the tracking information obtained by the target tracking assembly, so that the photographing device clamped by the clamping assembly can keep tracking the target object to perform photographing.

Abstract: The present invention discloses a gimbal, which belongs to the technical field of auxiliary equipment for shooting. The gimbal includes a connection part, a support assembly, a motor assembly, and a fixed assembly. The support assembly is mounted on one end of the connection part, the motor assembly is mounted on the other end of the connection part. The fixed assembly can be detachably mounted on the motor assembly. In particular, the fixed assembly can be mounted on the motor assembly in a first direction and drive the shooting device to rotate in a roll direction. By detachably mounting the fixed assembly, the gimbal not only achieves rotation of the shooting device in the roll direction, but also achieves rotation of the shooting device in the horizontal direction, thereby ensuring stable shooting of the shooting device in different scenarios and meeting the needs of different shooting scenarios.

Abstract: Discloses are a method for preparing fluff pulp from bamboos, and the fluff pulp prepared thereby. The method comprises the following steps: treating the bamboos with high-concentration alkali at a relatively mild temperature, after a certain period of treatment, replacing a treatment liquid for separating hemicellulose with a weak black liquor; Kraft cooking the treated bamboos to obtain unbleached bamboo pulp, removing rejects in the unbleached bamboo pulp by using a slotted screen; then removing miscellaneous cells by using a microporous sieve; carrying out two stages of oxygen delignification on the screened pulp; carrying out ECF bleaching treatment of a D0EpD1P process; and finally obtaining the bamboo fluff pulp which has high whiteness, low DCM extract content, low ash content and long fiber length, contains 4.2-4.6 million fibers per gram, and has relatively high bulkiness.

Abstract: A method for measuring aloesin in rat plasma includes: taking the to-be-detected plasma containing aloesin, adding the methanol solution containing the internal standard compound aloeresin D thereinto, performing vortex precipitation, centrifuging, and collecting supernatant as to-be-detected sample; setting liquid chromatogram conditions as follows: carrying out gradient elution by adopting a mobile phase A and a mobile phase B, wherein the mobile phase A is an aqueous solution containing 0.1-1.0 thousandth (v/v) of formic acid, the mobile phase B is methanol; Setting mass spectrometry conditions as follows: using electrospray ion source, using negative ion detection, spray voltage being 4500 V, spray temperature being 550° C.; adopting multiple reaction ion monitoring scan mode, wherein the ion pair used for the quantitative analysis of aloesin is m/z 393.1?272.9, and the ion pair for the internal standard compound aloeresin D is m/z 555.3?144.9. The method improves aloesin detection in plasma.

Abstract: Disclosed are a backlight module and a display apparatus. The backlight module includes a light guide plate (1), a light emitting surface (11) is divided into a light emitting region (A) and a peripheral region (B) surrounding the light emitting region (A); a lamp bar (2) having a light emergent direction facing a light incident surface (13); and a circuit board (3) connected with the lamp bar (2) and positioned at a side of a bottom surface (12) of the light guide plate (1), an overlapping portion between the circuit board (3) and the light guide plate (1) is formed into a connection region, and an orthographic projection of the connection region on the light emitting surface (11) is completely covers the peripheral region (B) and at least partially covers the light emitting region (A).

Abstract: A fracturing pump detection method, system, and device, and a storage medium, relating to the technical field of fracturing devices. The fracturing pump detection method includes: detecting stress information in a pull rod of a fracturing pump through a sensor installed at a power end of the fracturing pump, the sensor being isolated from fracturing liquid displaced by the fracturing pump; determining pump cavity liquid pressure information of the fracturing pump according to the stress information of the pull rod; determining phase information of a plunger corresponding to the stress information of the pull rod; and determining a detection result of the fracturing pump according to the pump cavity liquid pressure information and phase information of the plunger.

Abstract: This application relates to the field of oil and gas devices, systems, and methods, and particularly relates to a packing leakage detection system and method. The packing leakage detection system includes a plunger pump, a pressure sensor and a control system, where the pressure sensor is configured to detect a pressure value inside a hydraulic end of the plunger pump, and send the detected pressure value to the control system; and the control system is configured to acquire the pressure value sent by the pressure sensor, and send prompt information according to the pressure value, where the prompt information includes at least one of alarm information and information for prompting shutdown and overhaul. This application is used for solving the problem that a leakage anomaly caused by a packing failure is not discovered in time.

Abstract: A plunger, a hydraulic end and a plunger pump are disclosed. The plunger includes a plunger body, the plunger body includes a flow channel; a first liquid inlet hole is located in the plunger body and passes through the sidewall of the plunger body; the plunger body includes a first end portion and a second end portion, a flow channel extends from the first end portion to the second end portion, a part of the flow channel close to the first end portion is closed, the flow channel extends to the second end portion and forms a first opening, the first liquid inlet hole is communicated with the flow channel, the first valve assembly is located at the first opening, and is configured to allow fluid to flow out from the flow channel at the first opening and prevent fluid from flowing back to the flow channel from outside.

Abstract: The present invention discloses a gimbal, which belongs to the technical field of auxiliary equipment for shooting. The gimbal includes a connection part, a support assembly, a motor assembly, and a fixed assembly. The support assembly is mounted on one end of the connection part, the motor assembly is mounted on the other end of the connection part. The fixed assembly can be detachably mounted on the motor assembly. In particular, the fixed assembly can be mounted on the motor assembly in a first direction and drive the shooting device to rotate in a roll direction. By detachably mounting the fixed assembly, the gimbal not only achieves rotation of the shooting device in the roll direction, but also achieves rotation of the shooting device in the horizontal direction, thereby ensuring stable shooting of the shooting device in different scenarios and meeting the needs of different shooting scenarios.

Abstract: A fluid splitter, a fluid end, and a plunger pump are provided. The fluid splitter includes: a body having a shape of column and including a first end, a second end, and a side surface connecting the first end and the second end; a first opening, located at the side surface of the body; a first cavity, located at the first end; a first channel, communicated with the first opening and the first cavity, respectively, the first channel extending from the first opening to the first cavity and being configured to allow fluid to flow therethrough; a second opening, located at the side surface of the body; a second cavity, located at the second end; and a second channel, communicated with the second opening and the second cavity, respectively, the second channel extending from the second opening to the second cavity and being configured to allow fluid to flow therethrough.

Abstract: The present disclosure provides compounds of Formula (I) a pharmaceutically acceptable salt, a stereoisomer, or a tautomer thereof, for use in, e.g. treating a condition, disease or disorder in which increased (e.g., excessive) STING activation (e.g., STING signaling) contributes to the pathology and/or symptoms and/or progression of the condition, disease or disorder (e.g., cancer) in a subject (e.g., a human). This disclosure also features compositions containing the same as well as methods of using and making the same.

Abstract: The present application provides a heat pump system. The heat pump system comprises a main circulating refrigerant loop, an auxiliary circulating refrigerant loop, and a refrigerant management system; the main circulating refrigerant loop comprises a main compressor, a first main heat exchanger, a main throttling device, and a second main heat exchanger, the main compressor is configured to allow a refrigerant in the main circulating refrigerant loop to circulate in a main circulating refrigeration working condition flow direction or circulate in a main circulating heating working condition flow direction. The auxiliary circulating refrigerant loop comprises an auxiliary compressor, a first auxiliary heat exchanger, an auxiliary throttling device, and a second auxiliary heat exchanger; the auxiliary compressor is configured to allow a refrigerant in the auxiliary circulating refrigerant loop to circulate in an auxiliary circulating heating working condition flow direction.

Abstract: The present invention belongs to the technical field of oil well cement preparation, discloses a long-term high-temperature resistant and toughened well cementing and silica-cement composite material and a preparation method. A solid component comprises cement, alumina, superfine, high-purity silica sand, a suspending agent and a toughening material according to weight fractions; the toughening material comprises a latex fiber toughening agent and a nano graphene sheet; and a liquid component is composed of water, nano iron oxide and an oil well cement admixture according to weight fractions. Cement slurry with a ratio of the present invention can achieve compressive strength reaching up to 31 MPa after being cured under a high-temperature and high-pressure environment of 200° C. and 150 MPa for one year; and the gas permeability is controlled below 0.02 mD.

Abstract: In one aspect, an example methodology implementing the disclosed techniques can include, by a first computing device, determining two or more of tasks associated with a user and determining, a priority of each task of the two or more tasks based on a deadline and an importance of the task. The method can also include, by the first computing device, determining dependencies between different ones of the two or more tasks and sorting the two or more tasks based on the priority of each task of the two or more tasks and the determined dependencies. The method can also include, by the first computing device, causing at least a portion of the sorted two or more tasks to be displayed in a user interface (UI) of an application on a second computing device.

Abstract: A crawling welding robot, including an adjustable magnetic adhesion module, wheel-tracked walking mechanisms, a crawler frame, and a welding load device, wherein the welding load device is disposed on the crawler frame; the wheel-tracked walking mechanisms are disposed at two opposite ends of the crawler frame for supplying power for crawling of the crawler frame; and the adjustable magnetic adhesion module is disposed on the crawler frame and disposed between the two wheel-tracked walking mechanisms.

Abstract: The present invention belongs to the technical field of oil well cement preparation, and discloses a long-term high-temperature resistant and toughened well cementing and silica-cement composite material and a preparation method. A solid component comprises cement, alumina, superfine high-purity silica sand, a suspending agent and a toughening material according to weight fractions; the toughening material comprises a latex fiber toughening agent and a nano graphene sheet; and a liquid component is composed of water, nano iron oxide and an oil well cement admixture according to weight fractions. Cement slurry with a ratio of the present invention can achieve compressive strength reaching up to 31 MPa after being cured under a high-temperature and high-pressure environment of 200° C. and 150 MPa for one year; and the gas permeability is controlled below 0.02 mD.

Abstract: A method for generating a portrait of mechanical equipment includes: obtaining all data information related to mechanical equipment; performing data fusion on the data information related to the mechanical equipment to obtain a multi-source data information set; obtaining target attribute data and target state data of the mechanical equipment based on the multi-source data information set; generating attribute labels of the mechanical equipment based on the obtained target attribute data; inputting current target state data of the mechanical equipment into a trained neural network model to obtain current state labels of the mechanical equipment, where the current state labels include state label values of the mechanical equipment; and generating an equipment portrait of the mechanical equipment through attribute label values of the obtained attribute labels and the state label values of the obtained current state labels.