Abstract: A display substrate and a display device are provided. The display substrate includes a base substrate, at least one group of contact pads, a plurality of first light-emitting elements, a plurality of first pixel driving circuits, a plurality of connecting traces, a plurality of data lines and a plurality of leads. The display area includes a first display area and a second display area; the first light-emitting elements are located in the first display area; the first pixel driving circuits are located in the second display area; the leads are located in the first display area and the peripheral area, and connect the data lines and the at least one group of contact pads; orthographic projections of the first light-emitting elements on a substrate surface of the base substrate are at least partly overlapped with orthographic projections of the leads on the substrate surface of the base substrate.

Abstract: A display substrate. In a plane parallel to the display substrate, the display substrate includes a plurality of sub-pixels, at least one sub-pixel includes a pixel driving circuit and a light emitting device connected to the pixel driving circuit, the pixel driving circuit at least includes a storage capacitor and a plurality of transistors, the plurality of transistors at least includes a driving transistor and at least one switching transistor of a dual-gate structure. In a plane perpendicular to the display substrate, the display substrate includes a plurality of conductive layers, the first polar plate and the gate electrode of the drive transistor are arranged in the same layer, the second polar plate and the first power line are arranged in the same layer.

Abstract: The present invention relates to a method for dissolving metals by photocatalysis. A metal-containing material to be dissolved is dispersed in a mixed solution of photocatalyst-containing cyanide and organic chloride; then, a photocatalyst is added; next, an oxygen-containing gas or a substance which is capable of generating oxygen is introduced; and irradiation is applied for a period of time to dissolve metals. Compared with the prior method, the present invention is advantageous in moderate reaction condition, energy conservation, environmental protection, low cost, and convenient operation, and is suitable for mass industrial treatment on metal dissolution.

Abstract: Artificial intelligence (AI) assisted technology for grocery recommendations and nutrient optimization includes an intuitive application (app) that can use AI to improve grocery recommendations during grocery shopping to optimize nutrition and encourage users to purchase foods that can help the user receive more complete nutrition. Automatically capturing nutritional information while grocery shopping can assist users seeking to improve their health because it operates while users are performing their grocery shopping, when users have the best opportunity to shape the foods that will be available to them to consume. Nutritional optimization while grocery shopping can improve the use of resources including time and money (due to the cost of food) because it can provide suggestions to address nutritional opportunities that represent nutritional surpluses and nutritional opportunities that represent nutritional deficits.

Abstract: Provided is an isolated antigen-binding protein, which can specifically bind to CD73 and includes at least one CDR in a heavy chain variable region VH, wherein the region VH includes an amino acid sequence as represented by SEQ ID NO: 49.

Abstract: A lifting device for building a steel structure hoistway and a method for building a steel structure hoistway. The lifting device includes a lifting mechanism and a crane mechanism. The lifting mechanism includes a bottom platform, a middle platform and a top platform. The crane mechanism is arranged on the top platform of the lifting mechanism, and includes a base and a crane on the base. The base is arranged on the top platform and is rotatable relative to the top platform along a vertical axis, and the hanger frame of the crane is movable between a vertical orientation and an inclined orientation. The lifting mechanism is configured to ascend and descend in the constructed steel structure hoistway, and the crane mechanism is configured to lift building materials, such as steel beams, steel columns, etc., for use in building the steel structure hoistway to their designed installation locations.

Abstract: A system for power delivery network (“PDN”) isolation may include a multi-layer printed circuit board (“PCB”) in which a power distribution layer has a root conductive region and two or more branch conductive regions fanning out from the root conductive region. Each branch conductive region may be insulated from other branch conductive regions by a non-conductive region. Each branch conductive region may have at least one power delivery connection. Each of various electronic circuits mounted on the PCB and sharing the same PDN may be shorted to one of the branch conductive regions.

Abstract: An application of MAL33 gene deletion in improving the tolerance of Saccharomyces cerevisiae to inhibitors in a lignocellulose hydrolyzate is provided. The tolerance of the present MAL33 gene-deleted Saccharomyces cerevisiae strain to acetic acid is greatly improved, and the tolerance of the Saccharomyces cerevisiae strain to other typical inhibitors and H2O2 in the lignocellulose hydrolyzate is also improved. The lag period of the Saccharomyces cerevisiae strain in a glucose and xylose medium (YPDX) with 3.5 g/L acetic acid is shortened by 24 h. The fermentation period of the Saccharomyces cerevisiae strain to produce ethanol through co-utilization of glucose and xylose is shortened by 20 h. The growth of the Saccharomyces cerevisiae strain in a glucose and xylose medium (YPDX) with a mixed inhibitor and the ethanol production of the Saccharomyces cerevisiae strain through the co-fermentation of glucose and xylose are superior to those of a control strain.

Abstract: The disclosure provides an optical lens, a camera module and a camera. The optical lens, from an object side to an image side along an optical axis, sequentially includes a stop, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a filter. The optical lens meets the expression of: SAG8D0.5SAG8D1>0.35, where SAG8D0.5 represents a sagittal height at a position corresponding to half a diameter of an image side surface of the fourth lens, and SAG8D1 represents a sagittal height at a position corresponding to the diameter of an image side surface of the fourth lens.

Abstract: The present disclosure relates to method, storage medium and electronic device for detecting vehicle crashes. The method comprises: acquiring state information of a target vehicle; and determining an event type of the target vehicle according to the state information and a trained convolutional neural network, the event type being any of the following types: a crash event, a near crash event and a baseline event. The event type of the vehicle is determined using the trained convolutional neural network in the present disclosure, so that the accuracy is high; and near crash events can be detected, thus, when a near crash event is detected, the driver can be further alerted or an evading operation is directly performed on the vehicle, so that the safety is improved and the safety of the driver and passengers is guaranteed.

Abstract: Artificial intelligence (AI) assisted technology for grocery recommendations and nutrient optimization includes an intuitive application (app) that can use AI to improve grocery recommendations during grocery shopping to optimize nutrition and encourage users to purchase foods that can help the user receive more complete nutrition. Automatically capturing nutritional information while grocery shopping can assist users seeking to improve their health because it operates while users are performing their grocery shopping, when users have the best opportunity to shape the foods that will be available to them to consume. Nutritional optimization while grocery shopping can improve the use of resources including time and money (due to the cost of food) because it can provide suggestions to address nutritional opportunities that represent nutritional surpluses and nutritional opportunities that represent nutritional deficits.

Abstract: The present invention discloses a method for switching modes of an electromechanical transmission system which includes a clutch CL0, a motor A, a clutch CL1, a brake B1, a motor B and three planet rows K1, K2 and K3. The electromechanical transmission system according to the present invention achieves two different structural modes of EVT1 and EVT2 by changing states of the clutch CL0 and the brake B1. The EVT1 mode is mainly a system running state at a low vehicle speed under a high driving torque demand, and the EVT2 mode is mainly a system driving state at a high vehicle speed under a low driving torque demand. Mode switching without speed difference and power interruption can be achieved by switching vehicle speed selection and reasonable adjustment of engine and motor torque.

Abstract: The present invention discloses a method for switching modes of an electromechanical transmission system which includes a clutch CL0, a motor A, a clutch CL1, a brake B1, a motor B and three planet rows K1, K2 and K3. The electromechanical transmission system according to the present invention achieves two different structural modes of EVT1 and EVT2 by changing states of the clutch CL0 and the brake B1. The EVT1 mode is mainly a system running state at a low vehicle speed under a high driving torque demand, and the EVT2 mode is mainly a system driving state at a high vehicle speed under a low driving torque demand. Mode switching without speed difference and power interruption can be achieved by switching vehicle speed selection and reasonable adjustment of engine and motor torque.

Abstract: The present invention discloses an electromechanical compound transmission device for a tracked vehicle. The electromechanical compound transmission device includes a front transmission mechanism, a power coupling mechanism, an independent drive mechanism, and convergent planetary gearsets arranged on both sides of the power coupling mechanism. The present invention can not only implement driving, steering, and other functions of a vehicle, but also provide sufficient electric energy for a vehicle-mounted device. In other words, a series mode can be adopted to satisfy a torque output requirement, and is mainly used for low and medium-low speed driving, as well as reverse driving and climbing steep slopes; and a series-parallel mode can also be adopted to satisfy requirements of high and medium-high speed driving, and can achieve relatively high transmission efficiency and fuel economy.

Abstract: The present invention discloses an electromechanical compound transmission device for a tracked vehicle. The electromechanical compound transmission device includes a front transmission mechanism, a power coupling mechanism, an independent drive mechanism, and convergent planetary gearsets arranged on both sides of the power coupling mechanism. The present invention can not only implement driving, steering, and other functions of a vehicle, but also provide sufficient electric energy for a vehicle-mounted device. In other words, a series mode can be adopted to satisfy a torque output requirement, and is mainly used for low and medium-low speed driving, as well as reverse driving and climbing steep slopes; and a series-parallel mode can also be adopted to satisfy requirements of high and medium-high speed driving, and can achieve relatively high transmission efficiency and fuel economy.

Abstract: A method for extracting herbacetin from plants of Rhodiola L., comprising the following steps: 1) performing an extracting process for the pulverized medical Rhodiola L. with an extracting solvent, and condensing to obtain an extract; 2) performing a leaching process for the extract and performing an acid hydrolysis for the extracted aqueous layer; 3) performing a leaching process for the solution after the acid hydrolysis with an organic solvent, combining the organic layer and concentrating under reduced pressure to obtain a herbacetin extract; 4) treating the herbacetin extract through polyamide column chromatography, collecting the outflow containing herbacetin and drying through condensation to obtain a crude herbacetin product; 5) treating the crude herbacetin product through reverse-phase silica-gel column chromatography, collecting the outflow containing herbacetin, drying through condensation and recrystallizing to obtain a pure herbacetin product.

Abstract: A Saccharomyces cerevisiae expression system and a construction method and application thereof, including an expression vector which includes, from 5? to 3?, a YEplac195 plasmid backbone, an exogenous gene expression cassette, and a selective marker gene expression cassette. The exogenous gene expression cassette includes from upstream to downstream an rDNA promoter, an internal ribosome entry site (IRES) sequence, an exogenous gene expression cassette, a poly(T) sequence, and an rDNA terminator. The selective marker gene expression cassette includes a promoter, a selective marker gene, and a transcription terminator.