Abstract: Methods and systems are presented for signed document image analysis and fraud detection. An image of a document may be received from a user's device. A first layer of a machine learning engine is used to identify a signature and a name of the user within different areas of the received image. A second layer of the machine learning engine is used to extract a plurality of features from the different areas of the image. The plurality of features includes at least one visual feature representing the signature and at least one textual feature representing the name. A combined feature representation of the signature and the name is generated based on the plurality of features extracted from the image. A third layer of the machine learning engine is used to determine whether the signature of the user has been digitally altered, based on the combined feature representation.

Abstract: A device and a method are disclosed for collecting and culturing fish embryos and evaluating combined toxicity of thiamethoxam and tetraconazole. An embryo collection component and an embryo culture component are provided on a base plate. The embryo collection component includes a collection tray detachably connected to a bottom of a culture tube. The embryo culture component includes a cavity plate with a stopper inside and a top plate provided with a culture well. A bottom of the culture well is provided with a leakage hole; and after the top plate is installed into the cavity plate, the stopper occludes the leakage hole. The new device is used to carry out the combined toxicity effect test of thiamethoxam and tetraconazole on zebrafish embryos, which can be used to avoid development of pesticide mixtures that have a good preventive effect but pose increased toxicity risk to the ecological environment.

Abstract: Disclosed is a pyridazinone compound represented by Formula (I), or a pharmaceutically acceptable salt, prodrug, hydrate, solvate, polymorph, stereoisomer, or isotopic variant thereof. The compound can be used for preparation of medicinal products for treatment and/or prophylaxis of a disease or condition associated with thyroid hormone abnormalities. The compound has higher selectivity to TH?, better pharmacokinetic parameters, desired stability, and higher agonistic activity toward TH?.

Abstract: A method for preparing (S)-nicotine by reduction includes conducting a reduction process on an alkene compound as shown in Formula I and/or an iminium cation compound as shown in Formula II, thereby producing (S)-nicotine. The method is simple, safe, reliable, and yields both high purity and high quantities of (S)-nicotine production.

Abstract: An interaction method and apparatus and an electronic device. The method comprises: displaying a first application interface, wherein the first application interface comprises an interface of a first application; and creating a second application account in the first application interface, wherein the second application account is used for logging in a second application. Therefore, a new interaction mode is provided.

Abstract: A method for running an instance is provided. The method includes: acquiring a component composing an instance, wherein the component is established based on an ECS architecture, and the instance is an edited unit in a game scene editor; acquiring, during a running phase of the instance, a running parameter of the component by converting an editor parameter in the component through the game scene editor, wherein a process of the converting is determined according to a data structure of a parameter used by a game engine in a case of running the instance; and running the instance through the game engine based on the component and the running parameter.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, control signaling for communications in a wireless communications system. The control signaling may indicate a first duration for an inactivity timer. The UE may initiate the inactivity timer and a second timer based on identifying a period of inactivity. The second timer may have a second duration that is shorter than the first duration for the inactivity timer. In some examples, the second duration may be based on one or more parameters, such as a display status, a battery status, a scaling factor, the first duration, an application state, or any combination thereof. The UE may release a connection for the communications in the wireless communications system based on an expiration of the second timer, an expiration of the inactivity timer, or a combination thereof.

Abstract: A method of optimizing a premix fuel nozzle for a gas turbine is provided including the step of providing a nozzle that provides, when the gas turbine is in operation, an axial flow field of an air and fuel mixture flows through the burner tube and around the nozzle tip, and at least two recirculation zones with at least two differing radial extents as part of a toroidal vortex generated on the nozzle tip to provide strong flame holding and flame propagation.

Abstract: A steel ladle drainage method, is achieved by using a steel ladle structure. Vacuum interlayers are provided within an upper nozzle, an upper fixed plate, alower fixed plate and a sliding plate of the steel ladle structure respectively. In the steel ladle drainage method provided by the present invention, a metal drainage agent is used to replace the drainage sand in the prior art, the metal drainage agent is melted by the liquid steel and deposited in the upper nozzle, the sliding plate with the vacuum interlayer and the upper nozzle with the vacuum interlayer have the insulation effect on the melted metal drainage agent, agent falling. Moreover, through moving the sliding plate, the two pouring holes of the upper and lower fixed plates are connectedwith each other, the metal drainage agent enters the tundish through the pouring holes and the lower nozzle under the action of gravity.

Abstract: Touch display device, touch display panel, touch module and forming method thereof are provided. The touch module includes a substrate, and a first shadow elimination layer, a touch electrode layer, a second shadow elimination layer, and a bridge layer that are sequentially located on a side of the substrate. The touch electrode layer includes a plurality of first touch electrodes. The bridge layer includes a plurality of bridges, and a bridge of the plurality of bridges connects two adjacent first touch electrodes through a via passing through the second shadow elimination layer.

Abstract: The present disclosure relates to comb-block copolymers and methods thereof. In some embodiments, a copolymer includes a first block comprising an ethylene-propylene copolymer; and a second block comprising a high density polyethylene. In some embodiments, a polyethylene composition includes the copolymer and a branched vinyl/vinylidene-terminated high density polyethylene. In some embodiments, a process for producing a polyethylene composition includes polymerizing ethylene, at a temperature of at least 100° C., by introducing the ethylene to a first catalyst system having a first catalyst compound and a first activator to form a branched vinyl/vinylidene-terminated high density polyethylene. The process includes introducing the branched vinyl/vinylidene-terminated high density polyethylene to additional ethylene, propylene, and a second catalyst system having a second catalyst compound and a second activator. The process includes obtaining the polyethylene composition.

Abstract: A method for producing block copolymers can include polymerizing a feedstock comprising a monomer and a comonomer under first polymerization conditions in the presence of a catalyst in a reactor to produce a first effluent comprising a first polyolefin block, an unreacted monomer, and an unreacted comonomer; blending the first effluent with a coordinative chain transfer polymerization agent to produce a mixture; and polymerizing the mixture in a separator under second polymerization conditions to cause the unreacted monomer and the unreacted comonomer to polymerize onto one end of the first polyolefin block as a second polyolefin block, thereby forming a block copolymer, wherein the first polyolefin block has a first comonomer content and the second polyolefin block has a second comonomer content that is different than the first comonomer content. The method can further include polymerizing in presence of a second coordinative chain transfer polymerization agent in a second separator.

Abstract: A composition comprising a C2-C12 polyalphaolefin and a functionalized propylene-based elastomer comprising from about 4 to about 25 wt % units derived from one or more C2 or C4-C12 alpha-olefins; a triad tacticity greater than about 90%; a heat of fusion less than about 75 J/g; and a plurality of oxygen containing functional groups selected from carboxylic acids, anhydrides, ketones, carbonates, esters, ethers, lactones, and combinations thereof. Compositions containing the functionalized propylene-based elastomer and methods to produce the same are also disclosed.

Abstract: The present disclosure provides compositions comprising propylene-based elastomer, articles thereof, and methods thereof. In at least one embodiment, a composition includes a propylene-based elastomer having an Mw of about 300,000 g/mol to about 600,000 g/mol and a melt flow rate of less than about 3 g/10 min, according to ASTM D-1238 (2.16 kg weight @ 230° C.). The composition includes a thermoplastic resin. In at least one embodiment, a roofing material includes a membrane. The membrane includes a composition. The composition includes a propylene-based elastomer having an Mw of about 300,000 g/mol to about 600,000 g/mol and a melt flow rate of less than about 3 g/10 min, according to ASTM D-1238 (2.16 kg weight @ 230° C.). The roofing material further includes a base material adhered to the membrane or affixed to the membrane.

Abstract: Touch display device, touch display panel, touch module and forming method thereof are provided. The touch module includes a substrate, and a first shadow elimination layer, a touch electrode layer, a second shadow elimination layer, and a bridge layer that are sequentially located on a side of the substrate. The touch electrode layer includes a plurality of first touch electrodes. The bridge layer includes a plurality of bridges, and a bridge of the plurality of bridges connects two adjacent first touch electrodes through a via passing through the second shadow elimination layer.

Abstract: A method for producing gradient copolymers can include polymerizing a reaction mixture comprising a monomer and a comonomer in the presence of a metallocene catalyst in a loop reactor, wherein in the loop reactor a gradient monomer weight percent in the reaction mixture is about 3 wt % to about 50 wt %, thereby forming a gradient copolymer.

Abstract: A preparation process and LED application of copper nanoclusters (Cu NCs) fluorescent nanoflowers with high quantum yield by dissolving Cu4I4 into dimethyl sulfoxide (DMSO) and then adding glycerol, it self-assembles into Cu NCs s fluorescent nanoflowers. The Cu4I4 fluorescent nanoflowers prepared by the invention have outstanding optical properties, a quantum yield up to 64.5%, and can be made into a series of different luminous colors and excellent stability LED only with commercial blue phosphor, such as yellow-green, sky blue, white, wherein according to the mass ratio of 4:5 ratio mix can be prepared white light emission LED. Fluorescent Cu NCs can successfully replace traditional light conversion materials and prepare environmentally friendly LEDs.

Abstract: A nozzle tip for a premix fuel nozzle includes an outer body having an outer body external face facing the downstream end of the burner tube, the outer body external face having a smaller cross-sectional area than the cross-sectional area of the burner tube; and at least one segment radiating radially outwardly toward the internal wall of the burner tube from the outer body, wherein each segment has a proximal end disposed adjacent to the outer body external face and a distal end disposed in a direction toward the burner tube, wherein each segment has a segment downstream face angled relative to the longitudinal axis of the burner tube towards the downstream end of the burner tube. When the gas turbine is in operation, an axial flow field of an air and fuel mixture flows through the burner tube and around the nozzle tip, and two or more recirculation zones of differing radial extent are generated on the nozzle tip by the segments to provide strong flame holding and flame propagation.

Abstract: The invention is about a crawler driving device, which includes a main frame, a rotary driving wheel designs over the main frame, idler wheels design at both ends of the main frame, as well as multi-pair interval roller wheels mounted at the bottom of the main frame for fore-after driving direction, and crawlers sleeved on the outside of the drive wheels, the idler wheels and the roller sets. The driving wheel of the current invention and the tooth block inside the crawler belt are in meshing structure, so as to drive the crawler belt to rotate. The roller wheels at the bottom can swing up and down during the driving, and supporting the system as well. the roller wheels swing up and down with the rotating shaft in the middle of the mechanical balancers as the fulcrum. In case of uneven terrain, the four sets of roller wheels at the both ends of the balancer can be force-buffered at the same time, so as to ensure the stable ground drive and keeping the vehicle smoothly moving.