Abstract: The framework predicts water-quality data from observation data associated with raw features, e.g., rainfall. In the framework, an artificial neural network (ANN) computes the predicted water-quality data from feature data associated with impact features and derived from the observation data. The impact features are learnable, and are selected from impact-feature candidates comprising directional change- (DC-based) features each indicating occurrence of DC events in a corresponding raw feature. Including the DC-based features in the candidates enhances the ANN's ability of capturing significant change patterns of water quality due to extreme/unexpected events. The ANN architecture is also configurable according to model hyperparameters, which are learnable.

Abstract: The present disclosure discloses a camera lens group including, sequentially from an object side to an image side along an optical axis, a first lens having negative refractive power and a concave image-side surface; a stop; a second lens having positive refractive power and a convex image-side surface; a third lens having refractive power and a concave image-side surface; a fourth lens having positive refractive power and a convex image-side surface; and a fifth lens having negative refractive power, a convex object-side surface and a concave image-side surface. A maximum field-of-view FOV of the camera lens group satisfies: FOV>114°. A maximum distortion of the camera lens group is within 8%.

Abstract: A seat frame includes: a base including a transverse support rod and a longitudinal support rod; an elevation unit including a support, a first elevation rod, a second elevation rod, and a connecting piece; an extension unit including a base plate, a lifting unit, a foot adjustment unit, and a backrest adjustment unit, where the base plate being fixed to the connecting piece; and a power unit disposed on the base and separately connected to the elevation unit and the extension unit, where the power unit includes a drive unit, a connecting base, and a drive connecting rod, a first end of the drive unit is hinged to the base, and a second end of the drive unit is hinged to the connecting base.

Abstract: The present disclosure provides a content initialization method and apparatus, an electronic device and a storage medium, which relates to a field of computer technology, in particular to fields of deep learning and distributed computing. The content initialization method is applied to any one of a plurality of devices included in a distributed system. A specific implementation scheme of the content initialization method is: determining, according to a size information of a resource space for the distributed system and an identification information of the any one of the plurality of devices, a space information of a first sub-space for the any one of the plurality of devices in the resource space, wherein the space information includes a position information of the first sub-space for the resource space; and determining an initialization content for the first sub-space according to a random seed and the position information.

Abstract: The present application provides a waterproof assembly of an energy storage device, and an energy storage device. The waterproof assembly includes a boss and a wire harness cover. The boss is arranged on an outer wall of a case of a battery, and includes a first outward protruding portion that defines a first through hole in communication with the interior of the case. The wire harness cover is configured to be of a hollow cavity structure for receiving a wire harness, and is internally provided with a first recess that is configured to accommodate the first outward protruding portion to communicate the first through hole with the hollow cavity.

Abstract: This application provides an interaction method, apparatus, device and medium. The method includes: displaying information of material or materials used in a virtual scene in response to a viewing instruction of a first user for the virtual scene; and displaying a detail page of a target material in response to a first operation on information of the target material used in the virtual scene.

Abstract: A method and apparatus for determining holding parameters, an electronic device and a computer medium are provided. The method includes displaying a holdable object, and a calibration object for a first user to calibrate a holding position of the holdable object; and in response to a determination instruction of the first user to determine the holding parameters of the holdable object, determining position holding parameters of the holdable object according to a first position of the holdable object and a second position of the calibration object.

Abstract: A 2-bit high-power amplifying non-reciprocal reflective metasurface is provided. The metasurface comprises a plurality of metasurface units distributed in an array; each metasurface unit comprises a first metal layer, an intermediate layer, and a second metal layer which are sequentially stacked; the second metal layer comprises a receiving metal patch and a transmitting metal patch; two diodes are both positioned on a longitudinal central axis of the receiving metal patch; orientation of the slot on the transmitting metal patch is orthogonal to orientation of the slot on the receiving metal patch; the first metal layer comprises a phase shifter, which comprises first series diodes and second series diodes forming a reconfigurable 90-degree phase-shift circuit.

Abstract: The present invention provides tricyclic fused thiophene derivatives, as well as their compositions and methods of use, that modulate the activity of Janus kinase (JAK) and are useful in the treatment of diseases related to the activity of JAK including, for example, inflammatory disorders, autoimmune disorders, cancer, and other diseases.

Abstract: Provided are a chair frame and a chair. The chair frame supports a human waist and back by using a waist support assembly and supports human legs and feet by using a footstool assembly. Meanwhile, when the waist support assembly is unfolded, driven by a second support rod, a second end of a first support rod can swing toward the footstool assembly with a junction between a first end of the first support rod and the second support rod as a rotation center to increase an included angle between a waist support bracket and a seat cushion bracket, that is, increasing an unfolded angle of a backrest and achieving the zero gravity effect. The chair can improve the chair comfort by applying the preceding chair frame.

Abstract: The present application provides an end cap assembly, a battery cell, a battery module, a battery, an electrical device, and a manufacturing method for the end cap assembly. The end cap assembly is applied to the battery cell and includes: an end cap sheet, electrode columns, and adapter sheets; the end cap sheet is provided with electrode through holes; the electrode columns are configured for inputting or outputting electric energy of the battery cell, the electrode columns cover the electrode through holes, each electrode column is provided with a first concave portion recessed towards an interior of the battery cell; and each of the adapter sheets is provided with a second concave portion matching with the first concave portion, and configured for electrically connecting the electrode columns with an electrolytic cell or a galvanic cell inside the battery cell.

Abstract: The present invention provides heterocyclylamine derivatives of Formula I: wherein the variables are defined herein, that modulate the activity of phosphoinositide 3-kinases (PI3Ks) and are useful in the treatment of diseases related to the activity of PI3Ks including, for example, inflammatory disorders, immune-based disorders, cancer, and other diseases.

Abstract: An apparatus includes a body, a detection member, one or more processors, and one or more memories. The body is configured to carry a payload and is in one of a plurality of different states. The plurality of different states include a folded state and an unfolded state. The first detection member is mounted at the body and includes a magnetic sensor. The one or more memories store one or more computer programs that, when executed by the one or more processors, cause the one or more processors to obtain detection information collected by the first detection member and control the apparatus to be in a standby mode or an operation mode according to the first detection information. The detection information is related to the folded state or the unfolded state of the body.

Abstract: A traffic lane line fitting method includes: obtaining map information for a current position of a vehicle, the map information comprising a number of traffic lanes, a road width and line point information of traffic lane lines on both sides of the vehicle; determining, from among the traffic lane lines on both sides of the vehicle, a traffic lane line on one side, consistent with the direction indicated by at least one of the following, to be a traffic lane line offset reference used for traffic lane line fitting; offsetting and generating a plurality of traffic lane lines of the vehicle on the basis of the traffic lane line offset reference; performing curve fitting on a set of line points on the generated plurality of traffic lane lines so as to obtain a corresponding traffic lane line equation.

Abstract: A battery module, a battery pack, a device using a battery module as a power source, and a method of manufacturing a battery module are provided. The battery module includes: at least two battery cells; a connecting piece configured to electrically connect two battery cells of at least two battery cells; and a protective layer including a first protective portion configured to cover the connecting piece. A melting point of the first protective portion is greater than that of the connecting piece.

Abstract: This application relates to derivatives of Formula I: and pharmaceutically acceptable salts thereof, which are inhibitors of PI3K, and compositions and methods of treatment related thereto.

Abstract: The present disclosure discloses an optical imaging lens group including, sequentially from an object side to an image side along an optical axis, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens, each of which has refractive power. Each of the first lens and the fourth lens has positive refractive power. The eighth lens has negative refractive power. An object-side surface of the third lens is a convex surface, and an image-side surface thereof is a concave surface. An object-side surface of the fourth lens is a concave surface, and an image-side surface thereof is a convex surface. A total effective focal length f of the optical imaging lens group, an effective focal length f2 of the second lens, and an effective focal length f3 of the third lens satisfy |f/f2|+|f/f3|<1.

Abstract: Provided are an adjustable bracket and a high-feet sofa. In the adjustable bracket, the transmission rod is in a straight rod structure. A first end of the transmission rod is connected to the fourth connection rod. A second end of the transmission rod is connected to the pedal rod group. The present disclosure provides an adjustable bracket. In the case of the same sitting height, the adjustable mechanism of a sofa has a more compact structure so that the cleaning work of a mop, a vacuum cleaner, or a floor-sweeping robot is facilitated. Moreover, the height of the sofa from the ground is higher, making the sofa more attractive.

Abstract: Provided are an elderly chair support and an elderly chair.