Abstract: The present disclosure discloses a method and an apparatus for identifying an S-characteristic of a pump turbine and a control method. The method for identifying an S-characteristic of a pump turbine includes: collecting a set of state parameters of the pump turbine at a preset time interval, wherein the state parameters comprise a flow rate and a rotation speed of the pump turbine; calculating a slope of a relationship curve between the rotation speed and the flow rate of the pump turbine within a current preset time interval; and determining, according to the positivity or negativity and an absolute value of the slope, whether the pump turbine enters an S-characteristic region.

Abstract: Systems and methods are provided for object extraction from images influenced by depth of field settings. Through control circuitry, an image subjected to a prior segmentation operation is acquired. A subsequent segmentation operation is performed, modulating the depth of field setting to its extreme values, producing two distinct segmented images. From these, an in-focus object is derived, forming delineated representations. A similarity index between representations is computed. If this index exceeds a specified threshold, the in-focus object is extracted from the original image using the control circuitry.

Abstract: Systems and methods are provided for controlling content from within a virtual environment. First and second extended reality devices and at least one user device are connected to the virtual environment, each extended reality device providing a user with interactive access to the virtual environment. Display data, based on a display of the user device, is received from the user device. An interactive virtual representation of the display is generated based on the display data. Input is received from one of the users via the virtual environment. Operational instructions, based on the received input, are communicated to the user device, with the operational instructions configured to instruct the user device to perform functions based on the received input.

Abstract: A device and method for starting a pumped storage group, and a pumped storage system are disclosed. The device includes: an acquisition module configured to acquire starting data of the group in real time; a first determination module configured to determine a real-time speed versus time curve for the group based on the starting data; and a correction module configured to correct a starting speed of the group based on a deviation between a reference speed versus time curve cluster and the real-time speed versus time curve. The real-time speed of the group during starting is visualized through a curve fitting procedure to form the real-time speed versus time curve, the real-time speed versus time curve is compared with a favorable history operation curve, and the deviation between the real-time speed versus time curve and the favorable history operation curve is corrected to adjust the starting speed of the group.

Abstract: Systems and methods are described for enabling delivery of an order to a customer's vehicle travelling along a first navigational route. The customer inputs an order, and a plurality of candidate vendors and candidate delivery locations are determined. A target delivery location and target vendor are selected from among the plurality of candidate delivery locations and candidate vendors based on optimizing one or more predetermined criteria. The order is transmitted to the target vendor, and a confirmation is received. The target delivery location is then transmitted to the customer. The customer travels to the target delivery location to pick up the order.

Abstract: A method can include receiving a system frame number (SFN) from a base station by a first relay UE, determining a timeline of the SFN based on one or more synchronization signals by the first relay UE, determining a timeline of a direct frame number (DFN) based on a reference time source by the first relay UE, computing an SFN-DFN offset based on the difference between the timeline of the SFN and the timeline of the DFN by the first relay UE, and transmitting the SFN-DFN offset and the DFN to a receiving UE on a sidelink interface.

Abstract: Embodiments of the present disclosure disclose an OLED display panel and a terminal device. The OLED display panel includes power signal lines and vertical auxiliary lines extending along a first direction, and horizontal auxiliary lines and reset signal lines extending along a second direction. The horizontal auxiliary lines are electrically connected to the power signal lines at intersections therebetween to form a grid-like connection, and/or the vertical auxiliary lines are electrically connected to the reset signal lines at intersections therebetween to form grid-like connection.

Abstract: A system for surveying internal pipeline scaling includes a control system, a gauge cutter, a scale recorder, and a wireline. The control system communicates with the scale recorder to obtain scale recorder data and acoustic images. The gauge cutter dislodges scaling debris from an interior wall of the pipeline and includes a fluid permeable screen which collects the dislodged scaling debris. The scale recorder obtains scale recorder data and acoustic images, and includes an ultrasound wave transmitter, an ultrasound wave receiver, a processor, a memory, and a communication interface. The wireline lowers the gauge cutter in the pipeline and is coupled to the control system and the communication interface.

Abstract: A system for surveying internal pipeline scaling includes a control system, a gauge cutter, a scale recorder, and a wireline. The control system communicates with the scale recorder to obtain scale recorder data and acoustic images. The gauge cutter dislodges scaling debris from an interior wall of the pipeline and includes a fluid permeable screen which collects the dislodged scaling debris. The scale recorder obtains scale recorder data and acoustic images, and includes an ultrasound wave transmitter, an ultrasound wave receiver, a processor, a memory, and a communication interface. The wireline lowers the gauge cutter in the pipeline and is coupled to the control system and the communication interface.

Abstract: System and methods of providing automatic recording of a virtual meeting based on user activity is disclosed. The method includes determining if a virtual meeting has begun and if a user is available or attentive based on one or more sensors, including a webcam, a Bluetooth controller, an infrared camera, a proximity detector, and a microphone connected to the user device. When it is determined that the user is insufficiently available or attentive, a recording of the virtual meeting is started. A user attention status may be reassessed periodically, and the recording continues as long as the user remains insufficiently available or attentive. Once the user is determined to be available, the recording is ended.

Abstract: Systems and methods for displaying content within an icon/tile associated with an executable streaming media application without launching the associated executable streaming media application are disclosed. The methods display a plurality of icons relating to streaming media applications on a home screen of a user interface. An automatic selection of one or more icons is made based on a selection criterion. Upon determining a trigger, content referenced in a manifest file is accessed and displayed within the boundaries of the selected icon. The content is selected based one or more factors. The content displayed is deep-linked to a media asset associated with the content. The manifest file is updated, and a personalized manifest file based on user consumption history and display device parameters is received. The content from the updated manifest file is played within the icon.

Abstract: A method of treating a subterranean formation to protect against solid deposition and corrosion attack includes flowing a pre-flush fluid to a specified downhole location within the subterranean formation. A main treatment fluid is flowed to the specified downhole location. The main treatment fluid includes a scale inhibitor configured to inhibit formation of scale within the subterranean formation. At a subsurface level, an overflush foam is generated. The overflush foam includes an aqueous fluid and a gas. The overflush foam is shear thinning and non-Newtonian. The overflush foam is flowed to the specified downhole location.

Abstract: A display panel and a display device are disclosed. By setting numbers of effective pulses of first start signals in both a writing frame and a holding frame of one display period to be plural, a plurality of first strobe driving circuits connected in cascade are allowed to output a plurality of first strobe signals multiple times to adjust a bias voltage of a first transistor of a plurality of pixel driving circuits. Therefore, the display panel can display at a similar light-emitting brightness in both the writing frame and the holding frame, thereby improving a flickering problem of the display panel.

Abstract: A pneumatic soft grabbing sensing device includes a support; a flexible grabbing mechanism including at least two flexible claws, wherein the at least two flexible claws are arranged on the support in a circumferential direction, each flexible claw includes a telescopic air bag, an adapter mechanism and a flexible plate connected with the adapter mechanism, the telescopic air bag is hollow and elongated, the telescopic air bag includes a closed end, an open end and an air bag main body connected between the closed end and the open end, the air bag main body includes at least two air bag bodies and a node portion formed between adjacent air bag bodies, and the adapter mechanism is connected to the node portion, the closed end and open end; and a sensing mechanism including at least two sensing parts, the sensing parts being arranged on inner sides of the corresponding flexible plates.

Abstract: The present application belongs to the field of lithium battery technology, particularly relating to a preparation method for ultra-high compacted lithium iron phosphate cathode material and lithium battery. The method comprises: obtaining an iron-containing precursor based on iron phosphate and dispersant; Mixing the iron-containing precursor, lithium source, phosphorus source, and first carbon source for first sintering to obtain the first precursor mixture and grinding to the first preset particle size to obtain the first precursor; Mixing the iron-containing precursor, lithium source, phosphorus source, and second carbon source for second sintering to obtain the second precursor mixture and grinding to the second preset particle size to obtain the second precursor; Mixing the first precursor, second precursor, and third carbon source and performing a third sintering to obtain the lithium iron phosphate cathode material, improving the coating integrity of the first carbon coating.

Abstract: The present application belongs to the field of lithium battery technology, particularly relating to a preparation method for lithium iron phosphate cathode material and lithium battery. The method comprises: adding lithium source, iron source, phosphorus source, first carbon source, dopant, and dispersant into a solvent according to a preset ratio for mixing and grinding treatment to obtain the first mixture; Drying the first mixture and performing the first sintering in an inert gas atmosphere to obtain the lithium iron phosphate precursor; Adding borohydride, deionized water, second carbon source, and dispersant to the lithium iron phosphate precursor for pretreatment to obtain the lithium iron phosphate precursor mixture; After mixing, grinding, and drying the lithium iron phosphate precursor mixture, performing a second sintering in an inert gas atmosphere to obtain a coated doped type lithium iron phosphate cathode material.

Abstract: The present disclosure provides a display device including a display panel and a plurality of gate driving units. The plurality of gate driving units at least include a first gate driving unit and a second gate driving unit electrically connected to a plurality of subpixels of the display panel and sharing a clock signal and a power supply signal. A plurality of cascaded first gate driving circuits included in the first gate driving unit and a plurality of cascaded second gate driving circuits included in the second gate driving unit are alternately arranged in a first direction.

Abstract: A well treatment composition may include a capsule and a treatment agent solution within the capsule. The treatment agent solution may have a treatment agent. The system may include a radiation source: neutron, gamma, X-ray, and/or ultraviolet. A method may include introducing the well treatment composition downhole in wellbore circulation fluid, and introducing a radiation source into the wellbore and positioning the radiation source. The method may include activating the radiation source and emitting radiation that intermingles with the well treatment composition at a target location. The method may include maintaining the wellbore to allow emitted radiation from the activated radiation source to react with the well treatment composition, forming a radiation activated well treatment composition. The method may include allowing the radiation activated well treatment composition to disintegrate or dissolve, breaking encapsulation and releasing treatment agent at the target location.

Abstract: Various solutions for wireless sensing in integrated sensing and communications (ISAC) system are described. An apparatus (e.g., a receiver node) may receive one or more first reference signals (RSs) based on a first sensing RS configuration, and perform a sensing of a target object based on the first RSs. Then, the apparatus may receive one or more second RSs based on a second sensing RS configuration. The second sensing RS configuration is determined by the apparatus or is received from another apparatus in an event that at least one of a sensing requirement and a channel condition is changed. The apparatus may further perform the sensing of the target object based on the second RSs.

Abstract: A problem with online transactions is that a customer may unwillingly be profiled by a corporate entity. To hinder such profiling, a customer may occasionally generate a public/private key pair, and present the public key to a digital token service for use as a pseudonym included in tokens issued to the customer. A subsequent assignment of the digital token to a corporate entity can then be performed by adding the public key of the corporate entity to the token, and signing the combination with the private key which pairs with the pseudonymous public key in the token. A return transaction from the corporate entity to the customer can then add the pseudonymous public key to a return digital token and sign the combination with the corporate entity's private key. Routing the digital token to the customer may be achieved by replying directly to the anonymous inbound token.