Abstract: A display substrate, including: a plurality of partition control signal lines disposed on a base substrate; and a plurality of sub-pixels disposed on the base substrate, at least one of the sub-pixels includes a pixel circuit and a light emitting device. The pixel circuit includes a switch transistor, a first partition control transistor, a drive transistor and a first initialization transistor. The first partition control transistor is electrically connected to the switch transistor, the first initialization transistor, the drive transistor and at least one partition control signal line. The first partition control transistor is configured to: in response to a partition control signal on the partition control signal line, selectively transmit a received first initialization signal to a gate electrode of the drive transistor in an initialization phase, and selectively transmit a received data signal to the gate electrode of the drive transistor in a data writing phase.

Abstract: The present disclosure provides a two-stage cavitation generator for organic wastewater treatment, including a shrouded impeller, a stator, and a rotor. The shrouded impeller includes a front cover plate, blades, and a rear cover plate. Several blades are evenly distributed between the front cover plate and the rear cover plate. A working surface of the blade is an arc surface, and a back of the blade protrudes locally, so that a flow channel between the back of the blade and a working surface of its adjacent blade is narrowed locally, forming a throat structure. An outlet of the shrouded impeller is provided with the stator and the rotor, and the stator is located at an outer edge of the front cover plate and fixed on an inner wall of a volute. The rotor is mounted on the rear cover plate.

Abstract: The disclosure relates to a device and method of using the device for performing biological and chemical assays that require an easy sample manipulation and/or a rapid change or a rapid thermal cycling of a sample temperature (e.g., Polymerase Chain Reaction (PCR) for amplifying nucleic acids). The device includes a first plate, a second plate, a plurality of spacers, and at least one clamp. The method includes obtaining the device, depositing a sample onto a sample contact area of at least one of the first and second plates of the device in an open configuration, closing the two plates into a closed configuration and placing the clamp in the active mode, and rapidly changing the temperature of the sample portion encircled by rings.

Abstract: A group of anti-BCMA single domain antibodies, as well as genes of the single domain antibodies in the group, a vector containing the single domain antibodies in the group, a chimeric antigen receptor, and a T cell modified by a chimeric antigen receptor, and detection and treatment application of the single domain antibodies in the group. The anti-BCMA single domain antibodies have high activity, high stability, high specificity, and high binding capability.

Abstract: A method for laser-induced growth of nano-units to form oriented, chiral, and complex structures is provided. Through a laser-induced photochemical reaction, a metal precursor undergoes photolysis to produce inorganic nanoparticles, and these nanoparticles are orientally deposited on a substrate along a polarization direction in a linearly polarized laser to form fusiform nano-units. Through mixed polarized light generated by a vortex plate, the nano-units can grow rapidly and form a specific arrangement to obtain special three-dimensional (3D) nanostructures with chiral features and complex patterns. This method can be implemented in a room temperature environment, has the characteristics of simple operation, short reaction time, high repeatability, long storage time, low cost, and controllable orientations and sites, and shows promising application prospects in the fields of optical devices, chiral catalysis, sensing, integrated circuits, and the like.

Abstract: One or more embodiments herein can enable identification of an obstacle free area about an object. An exemplary system can comprise a memory that stores computer executable components, and a processor that executes the computer executable components stored in the memory, wherein the computer executable components can comprise an obtaining component that obtains raw data defining a physical state of an environment around an object from a vantage of the object, and a generation component that, based on the raw data, generates a dimension of a portion or more of a virtual polygon representing a boundary about the object, wherein the boundary bounds free space about the object. A sensing sub-system can comprise both an ultrasonic sensor and a camera that can separately sense the environment about the object from the vantage of the object to thereby generate separate polygon measurement sets.

Abstract: A preparation method of a screw pump screw pump screw rod rubber lining mould includes: mixing a high strength wear-resistant material with a binder to obtain a mixed slurry; injecting the mixed slurry into a female die for solidification and taking out to form a screw rod rubber lining mould preform; drying and sintering the screw rod rubber lining mould preform to obtain a screw rod rubber lining mould; immersing the screw rod rubber lining mould into a surface treatment liquid for surface heat treatment to form a wear-resistant layer, and cooling down to obtain a final mould. The high strength wear-resistant material is prepared by using a ZnFe2O4 nano-particle reinforced Ti(C,N)-based metal ceramic composite material; the surface treatment liquid includes an aluminum borosilicate whisker/polyimide composite material solution; the high strength wear-resistant material having good strength, good hardness, good fracture toughness, and good wear resistance is prepared and applied.

Abstract: Disclosed are a high-voltage three-phase four-bridge-arm topology structure and an inverter. The topology structure includes four bridge-arm circuits and a converter; one end of first bridge-arm circuit is connected to an A-phase high voltage line and the other end is connected to a first conversion module, one end of second bridge-arm circuit to a B-phase high voltage line and the other end to a second conversion module; one end of third bridge-arm circuit to a C-phase high voltage line and the other end to a third conversion module; one end of fourth bridge arm circuit to a ground line and the other end to a fourth conversion module, and the fourth bridge arm circuit is used to perform voltage compensation on the output voltages of the first bridge arm circuit, second bridge arm circuit, and third bridge arm circuit when the three phase high voltage lines are unbalanced.

Abstract: Wearable devices protect against musculoskeletal injuries and enhance performance. Systems and methods provide wearable devices to assist with human motion during physical activities, such as performing movements (e.g., lifting) and holding static poses (e.g., crouching, or holding a tool while working overhead). Materials, constructions, and system architectures allow the wearable devices to be worn over, under, or integrated into clothing for extended periods of time to improve performance or reduce risk of injury. Sensors may be included in the wearable devices to detect various activities, motions, and postures of the wearer, and various active and semi-active controls approaches may leverage sensor information to provide tailored assistance to individual users. Various controls optimization techniques ensure the wearable devices operate at peak efficiency.

Abstract: Methods and apparatus for estimating the fidelity of quantum hardware. In one aspect, a method includes accessing a set of quantum gates; sampling a subset of quantum gates from the set of quantum gates, wherein the subset of quantum gates defines a quantum circuit; applying the quantum circuit to a quantum system and performing measurements on the quantum system to determine output information of the quantum system; calculating output information of the quantum system based on application of the quantum circuit to the quantum system; and estimating a fidelity of the quantum circuit based on the determined output information and the calculated output information of the quantum system.

Abstract: A Schmitt trigger circuit includes a first and second set of transistors, a first and second feedback transistor, and a first and second circuit. The first set of transistors is connected between a first voltage supply and an output node. The first voltage supply has a first voltage. The second set of transistors is connected between the output node and a second voltage supply. The second voltage supply has a second voltage. The first feedback transistor is connected to the output node, a first node and a second node. The second feedback transistor is connected to the output node, a third node and a fourth node. The first circuit is coupled to and configured to supply the second supply voltage to the second node. The second circuit is coupled to and configured to supply the first supply voltage to the fourth node.

Abstract: The present application relates to novel substituted imidazo[4,5-c]cinnolin-2-one compounds and pharmaceutically acceptable salts thereof, which selectively modulate ataxia telangiectasia mutated (“ATM”) kinase. The present application also relates to pharmaceutical compositions comprising one or more of the compounds and salts thereof as an active ingredient, and to the use of the compounds and salts thereof in the treatment of ATM-associated diseases or conditions, including cancers.

Abstract: Provided are a sound gathering device for voiceprint monitoring and a preparation method. The sound gathering device is a cone structure and includes a front end portion (1) and a rear end portion (2), the front end portion (1) is trumpet-shaped, an inner wall surface of the front end portion (1) is present a pattern array of a microstructure (3), and the microstructure (3) presenting the pattern array is formed through laser etching. A sound wave frequency monitored by the sound gathering device is 50 Hz˜10 kHz, and a sound wave enters the sound gathering device from an entrance of the front end portion (1), is reflected through the pattern array of the microstructure (3) on the inner wall surface of the front end portion (1), and is transmitted from an exit of the rear end portion (2), and a sound pressure of the exit of the rear end portion (2) is 4 times˜8 times a sound pressure of the entrance of the front end portion (1).

Abstract: A method for preparing a monodomain liquid crystal elastomer smart fiber incudes: during cross-linking process of the liquid crystal elastomer, drawing of liquid crystal elastomer fibers with uniform diameter from a polymer solution when the viscosity of the cross-linked polymer solution increases to a point where filaments can be drawn; heating by an infrared lamp to form filamentous liquid crystal elastomer fiber; natural air drying to remove excess solvent in the fiber; and stretching and collection of the fiber, followed by placement of the fiber, whereby the monodomain liquid crystal elastomer smart fiber is obtained.

Abstract: Aspects of the present disclosure provide systems, methods, and computer-readable storage media that support cooperative training of machine learning (ML) models that preserves privacy in untrusted environments. For example, a server (or cloud-based computing device(s)) may be configured to “split” an initial ML model into various partial ML models, some of which are provided to client devices for training based on client-specific data. Output data generated during the training at the client devices may be provided to the server for use in training corresponding server-side partial ML models. After training of the partial ML models is complete, the server may aggregate the trained partial ML models to construct an aggregate ML model for deployment to the client devices. Because the client data is not shared with other entities, privacy is maintained, and the splitting of the ML models enables offloading of computing resource-intensive training from client devices to the server.