Abstract: A system for refrigerant leakage detection includes one or more sensors configured to detect one or more parameters of a building system including a refrigerant. The system further includes one or more storage devices storing instructions thereon that, when executed by one or more processors, cause the one or more processors to receive sensor data from the one or more sensors; apply the sensor data to a long short-term memory (LSTM) model to generate predicted sensor data corresponding to the one or more sensors; receive subsequent sensor data from the one or more sensors; compare the predicted sensor data to the subsequent sensor data; determine that the building system has a refrigerant leakage based on the comparison of the predicted sensor data to the subsequent sensor data; and, responsive to determining that the building system has the refrigerant leakage, take an action to address the refrigerant leakage.

Abstract: A pixel circuit, a driving method and a display device. The pixel circuit includes a driving circuit, a first initialization circuit and a reset circuit; the first initialization circuit configured to write a first initial voltage into the first end of the driving circuit under the control of an initialization control signal; the reset circuit is configured to write a reset voltage into the second end of the driving circuit or the first end of the driving circuit under the control of a second scan signal; the driving circuit is configured to control to connect the first end of the driving circuit and the second end of the driving circuit under the control of a potential of a control end of the driving circuit.

Abstract: Disclosed a MAX-Ag electrically conductive composite coating and a preparation method thereof. The electrically conductive composite coating comprises a MAX phase and an Ag phase. The chemical formula of the MAX phase is Mn+1AXn, where M is a transition metal element, A is an Al element, X is a C or N element, and n is an integer of 1 to 3. The MAX phase is in a lath-like structure, the Ag phase is in a nano-twinned structure, and the Ag phase is aggregated at a grain boundary of the MAX phase. The electrically conductive composite coating as a whole is in an Ag-wrapped MAX phase structure. In the present disclosure, a grain shape heterogeneous design is performed on the MAX phase coating by Ag element doping. The Ag doping affects the growth of the MAX phase grain, so that the MAX phase grain is in a lath-like structure.

Abstract: A laminated glass, a vehicle window glass, and a vehicle, the laminated glass includes a first glass sheet and a second glass sheet; and a sealing end portion of the laminated glass fitted with a sealing member includes a first end face located at an end portion of the first glass sheet and a second end face located at an end portion of the second glass sheet; an overlap difference is formed between the first end face and the second end face along an extension direction of the laminated glass, at least one of the first end face and the second end face is an arc-shaped end face, a radius of which satisfies the condition: t/2<R<3t, where R denotes a radius of the arc-shaped end face, and t denotes a thickness of the first glass sheet or the second glass sheet.

Abstract: A variable-stroke self-adaptive adjustment quasi-zero stiffness device includes an integrating sphere, a target, a collimator, a pointing measuring instrument, a disturbance source, an inertia simulation tooling, a quasi-zero stiffness suspension adjustment device and an optical air-bearing platform. The integrating sphere, the target and the collimator are coaxially mounted on the optical air-bearing platform in sequence. The pointing measuring instrument is connected and fixed with the inertia simulation tooling through a screw; three disturbance sources are mounted on the inertia simulation tooling to provide small disturbance and inertia for the pointing measuring instrument; the quasi-zero stiffness suspension adjustment device suspends the inertia simulation tooling to provide a free boundary environment; and the quasi-zero stiffness suspension adjustment device, the pointing measuring instrument, the disturbance source and the inertia simulation tooling form a set of two-pendulum system as a whole.

Abstract: A device and method for measuring at least one cellular activity. The device includes: (a) a deformable polymeric base membrane having a first side and a second side, the polymeric base including a well having an opening on the first side, a cavity extending from the opening and a floor formed by the second side of the polymeric base membrane, (b) a deformable polymeric top membrane overlapping the second side of the polymeric base membrane; and (c) a sensing element disposed between the polymeric base membrane and the polymeric top membrane, the sensing element being disposed over the floor of the well, such that a portion of the second side that forms the floor of the well, the sensing element and a portion of the top membrane that overlaps the well form a suspended membrane.

Abstract: A kinase inhibitor, comprising a compound of formula (I) or a pharmaceutically acceptable salt, solvate, ester, acid, metabolite or prodrug thereof. A method and a use for using the inhibitor for treatment of diseases related to CDK9 and/or mutagenic activity thereof.

Abstract: The present application belongs to the technical field of image coding, and discloses a quantization parameter adjustment method, apparatus and device, and a storage medium. The quantization parameter adjustment method comprises: determining visual complexity information and/or coding complexity information corresponding to the current coding block, wherein the current coding block is an image coding block currently undergoing coding processing; determining quantization parameters of the current coding block according to the visual complexity information and/or the coding complexity information; and adjusting the quantization parameters of the current coding block.

Abstract: In some aspects, a packaging structure is provided. The packaging structure may include a circuit board, a photosensitive chip, and a heat dissipation member. The photosensitive chip can be electrically connected to the circuit board. The photosensitive chip has a photosensitive surface and a heat dissipation surface that are disposed opposite each other. The heat dissipation member is at least partially in direct contact with the heat dissipation surface of the photosensitive chip.

Abstract: The implementations provide a method including: encrypting records on one or more computing devices using a key of the one or more computing devices to generate a first set of encrypted records; preparing a matrix indicating that each of the first set of encrypted records is present on the one or more computing devices; responsive to receiving, from a remote device, a second set of encrypted records encrypted by the second device using a key of the remote device, encrypting the second set of encrypted records using the key of the one or more computing devices; and transmitting the second set of doubly encrypted records, along with the matrix, to the remote device for the remote device to determine, using the matrix, whether at least one of the second set of encrypted records of the second device is included in the first set of encrypted records on the first device.

Abstract: The present disclosure discloses a server installation structure and a server system, which is relative to the server technology field, and comprising: a server, configured to be installed in a cabinet, wherein the cabinet comprises an accommodating cavity and an opening, and the opening is communicated with the accommodating cavity; two opposite side surfaces of the server are respectively connected to a slide rail, the slide rail extends along a direction from the opening to interior of the accommodating cavity, and a first locking module and a second locking module are arranged on the slide rail at intervals along the direction from the opening to the interior of the accommodating cavity, and both the first locking module and the second locking module are switched between a locked state and an unlocked state; the first locking module comprises a first elastic piece, a locking member and a first spring, and the second locking module comprises a second elastic piece, wherein the first elastic piece is partia

Abstract: Embodiments of this application provide an image frame stabilization method and apparatus. The method includes: receiving a first operation of a user; starting a camera application in response to the first operation, and successively performing drawing and rendering to obtain a first image frame, a second image frame, and a third image frame; compositing the first image frame to obtain a first composited image frame, compositing the second image frame to obtain a second composited image frame, and compositing the third image frame to obtain a third composited image frame, respectively based on a first frame rate; and a terminal device displays the first composited image frame in a first period, displays the second composited image frame in a second period, and displays the third composited image frame in a third period.

Abstract: A display substrate and a display device. The display substrate includes: a base substrate; and a gate driving circuit; the gate driving circuit includes a plurality of shift register circuits; each shift register circuit includes: an input circuit, a control circuit, an output circuit, and an output noise reduction circuit; the control circuit includes a first transistor, a second transistor, and a third transistor; the control circuit is connected to the first node, a second node and a third node; at least two selected from group consisting of an active layer of the first transistor, an active layer of the second transistor, and an active layer of the third transistor extend in a first direction and are arranged in the first direction.

Abstract: The present disclosure involves methods, apparatus, and systems for processing group-by operations in databases. In one example, a method includes receiving a query to perform a group-by operation based on first attributes and second attributes of a plurality of entities. The first attributes are private data owned by a first participant of a secure multi-party computation (MPC), and the second attributes are private data owned by a second participant of the secure MPC. The method further includes performing one-hot encoding on the first attributes to generate encoded first attributes, and calculating, based on secure MPC, a secret share of a dataset. The dataset includes the first set of numbers and the second attributes. The method further includes performing the group-by operation including arranging the plurality of entities into groups based on at least the encoded first attributes, and aggregating the second attributes of entities in each of the groups.

Abstract: Embodiments of the present disclosure provide an encoding and decoding method, apparatus and device.

Abstract: The invention relates to cosmetic treatment devices, and discloses a microneedling device, which includes a handle with a liquid medicine cavity, a main cavity, a stamp assembly with a detachable bottom shell, a microneedle assembly with micro-needles with detachable bases and a telescopic control device. The control device uses a rotating sleeve to achieve precise extension and retraction of the microneedle, which can be adapted to skin drug delivery in multiple scenarios and improve flexibility of use.

Abstract: The present disclosure relates to the technical field of water electrolysis, in particular to a low-hydrogen-permeability proton exchange membrane as well as a preparation method and use thereof. The proton exchange membrane comprises a Pt-based additive layer and a substrate membrane, wherein the Pt-based additive layer consists of a Pt-based additive and a fluorinated proton exchange resin and comprises an array layer and a flat layer, with the thickness ratio and active components ratios of the array layer to the flat layer ranging from 1:(0.5-30) to 1:(1-50), and the array layer is composed of an orderly arranged arrays and an array layer resin wrapping the arrays. The low-hydrogen-permeability proton exchange membrane provided by the present disclosure has the Pt-based additive layer composed of the array layer and the flat layer.

Abstract: The present disclosure provides a pixel circuit, a driving method and a display apparatus, including: a light emitting device; a driving transistor, coupled to the light emitting device, and configured to generate a driving current for driving the light emitting device to emit light according to a data voltage; a bias circuit, coupled to a gate of the driving transistor, and configured to provide a signal of a bias voltage signal terminal to the gate of the driving transistor in response to a signal of a first control signal terminal; a data writing circuit, coupled to a first node; a coupling control circuit, coupled to the gate of the driving transistor and the first node; and a light emitting control circuit, coupled to the light emitting device and the driving transistor.

Abstract: A nanodelivery system based on globulin-1 S allele, a preparation method therefor and use thereof are provided. The preparation method includes the following steps of: dissolving globulin-1 S allele in a NaCl solution, and performing magnetical stirring until the globulin-1 S allele is completely dissolved to obtain a mixed solution; self-assembly: centrifuging the mixed solution, taking the supernatant to be dispersed into a dispersion solution for self-assembly to obtain a globulin-1 S allele dispersion; and adding hydrophobic plant polyphenol to the globulin-1 S allele dispersion, performing well mixing and centrifuging, and removing the supernatant to obtain the nanodelivery system based on the globulin-1 S allele.

Abstract: An air guide ring includes an annular air guide portion having an air duct that accommodates an impeller of an axial flow fan configured to rotate therein. The annular air guide portion has an inner side wall and an outer side wall, the air duct is enclosed by the inner side wall, and a plurality of noise reduction devices is arranged on the inner side wall of the annular air guide portion in a circumferential direction of the air guide ring The plurality of noise reduction devices is configured to reduce noise in the air duct.