Abstract: A catalyst for chemical pretreatment of waste fat, oil and/or grease, and a preparation method and use thereof. The catalyst includes three components of component A, component B, and component C; wherein the component A is a Bronsted acid protic ionic liquid composed of a linear or heterocyclic tertiary amine cation and an anion, the component B is at least one selected from the group made of organic acid and inorganic acid; the component C is at least one selected from low-carbon alcohols; and a mass ratio of the component A, the component B and the component C is in a range of (1.0-4.0):(0.01-0.3):(1.0-6.0). The catalyst is prepared by subjecting corresponding anions and cations to one-step neutralization reaction to obtain component A, and then mechanically mixing component A, and components B and C.

Abstract: Provided is a method for pretreating waste fat, oil and grease (FOG) and co-producing a first-generation biodiesel, including: S1, feeding waste FOG, a liquid acid catalyst, and methanol into a pre-esterification reactor, and conducting pre-esterification to obtain a pre-esterification mixed liquid; S2, removing waste residues from the pre-esterification mixed liquid through a filter to obtain a filtrate, and separating the filtrate by a liquid-liquid separator to obtain an organic phase and an aqueous phase; S3, introducing the organic phase into a methanol recovery tower I and conducting separation to obtain a pre-esterification product and crude methanol; introducing the aqueous phase into a methanol recovery tower II and conducting another separation to obtain a liquid acid catalyst and crude methanol; S4, separating the pre-esterification product through a biodiesel refining tower to obtain a first-generation biodiesel product, and a pretreated waste FOG at a tower bottom.

Abstract: A chemical pretreatment process for waste fat, oil and/or grease (FOG) includes three working sections: first, subjecting the waste FOG to esterification reaction to prepare a fatty acid methyl ester; second, subjecting a crude product obtained from the esterification reaction and a catalyst to liquid-liquid phase separation through a chromatograph device to obtain a crude product solution in a form of oil phase and a catalyst solution in a form of aqueous phase, respectively separating the aqueous phase and the oil phase through evaporation systems to obtain a crude product, catalyst and methanol and water, storing temporarily the crude product in a storage tank, and recycling the catalyst back to the reactor; and finally, refining the methanol aqueous solution through a distillation tower to obtain high-purity methanol, which is returned to the reactor for recycling, and introducing a resulting wastewater to a storage tank.

Abstract: Provided is a chemical pretreatment system for waste fat, oil and grease (FOG), including: a catalyst preparation device; a first esterification reactor; a first separation device; a second separation device; an evaporation device set; a cooling device; and a methanol separation device. The first separation device is connected with an outlet of the first esterification reactor and connected with an inlet end of the second separation device. The second separation device is connected with an evaporation device by a first outlet and with another evaporation device by a second outlet. Outlets of multiple evaporation devices simultaneously connect with the cooling device which connects with the methanol separation device. A reflux device is connected with an outlet of the methanol separation device and also connected with the first esterification reactor.

Abstract: The present application relates to systems and methods for trading assets taking into account carbon footprint of assets. The system is configured to allow a party to obtain carbon emission certificates and carbon emission redemption certificates from an offsetting activity in a country, and uses these to create a non fungible digital twin representing the offsetting activity which includes a time series of emission reduction smart contracts on a blockchain which are used to generate carbon neutrality tokens based on the amount of carbon emission reductions which can then be traded in any country. Similarly an asset holder can create a Non-Fungible Digital Twin (NFDT) representing the offsetting activity which includes a time series of asset smart contracts on a blockchain which capture the carbon footprint of the asset over time.

Abstract: The present disclosure provides a TFT. The TFT includes a gate electrode, an insulating layer on the gate electrode, and an active layer on the insulating layer. The active layer includes an annealed layer and an a-Si layer. The annealed layer is between the a-Si layer and the insulating layer. The annealed layer is made of amorphous silicon material by excimer laser annealing. The present disclosure further provides a TFT array substrate and a method of manufacturing a TFT.

Abstract: A coupling process for producing biodiesel from a waste FOG including: among others, 1) removing solid impurities from a waste FOG, then mixing with an alcohol and liquid acid catalyst to generate a pre-esterified mixture; 2) mixing the mixture with water, and charging the mixture to separate an aqueous phase to remove metal ions to obtain an esterification product II; 3) mixing the product II with a vulcanizator and H2 to generate a product I; 4) and separating the product I to obtain an oil phase, mixing the oil phase with H2 and passing the mixture into a fixed-bed reactor, and using a gas-liquid separator for separation to obtain an oil phase product II.

Abstract: The present invention relates to a heating device for the hot melting chamber of a hot melt glue gun, being a heating device fixed outside the hot melting chamber for heating. The heating device comprises two opposite holding parts configured on the outside of the hot melting chamber. Each holding part holds a resistor block. The resistor block on each side is tightly attached with an electrode plate. The electrode plates on the two sides are bonded together, so that the electrode plate can act as the common positive pole of the power supply to the resistor block, and meanwhile, the hot melting chamber can act as the common negative pole of the power supply to the resistor block. In this way, the configuration of an electrode plate under the resistor block can be omitted to reduce the size of the heating device, and less connecting wires are required between each resistor block and the positive and negative poles of the power supply, thus simplifying the welding and assembling operations.

Abstract: A computer-implemented method for partially supervised image segmentation having improved strong mask generalization includes obtaining, by a computing system including one or more computing devices, a machine-learned segmentation model, the machine-learned segmentation model including an anchor-free detector model and a deep mask head network, the deep mask head network including an encoder-decoder structure having a plurality of layers. The computer-implemented method includes obtaining, by the computing system, input data including tensor data. The computer-implemented method includes providing, by the computing system, the input data as input to the machine-learned segmentation model. The computer-implemented method includes receiving, by the computing system, output data from the machine-learned segmentation model, the output data including a segmentation of the tensor data, the segmentation including one or more instance masks.

Abstract: A certificate requesting method, a certificate issuing method, a certificate system and a computer-readable medium thereof are provided, in which subscriber identity identification information, a private key and a public key certificate bound to a first security chip are converted into a private key bound to a second security chip via an online identity authentication procedure, and the corresponding public key certificate is issued by a certificate authority server, so as to improve the usability, the convenience and the security thereof.

Abstract: A display panel includes a substrate, a plurality of LEDs, a planarization layer, and a patterned first conductive layer. The plurality of LEDs are on the substrate, each of the plurality of LEDs includes a first electrode facing a front side of the display panel. The planarization layer covers the plurality of LEDs. The first conductive layer is on the planarization layer. The planarization layer defines a plurality of holes, the electrode is exposed by a corresponding hole of the plurality of holes, and the first conductive layer electrical connects to the first electrode through the corresponding hole. The first conductive layer further comprises a trace portion and a plurality of reinforcing portions, each of the plurality of reinforcing portions is aligned with the corresponding hole and is attached to the trace portion. Methods of fabricating the display panel are further disclosed.

Abstract: Example aspects of the present disclosure are directed to systems and methods that enable weakly-supervised learning of instance segmentation by applying a cut-and-paste technique to training of a generator model included in a generative adversarial network. In particular, the present disclosure provides a weakly-supervised approach to object instance segmentation. In some implementations, starting with known or predicted object bounding boxes, a generator model can learn to generate object masks by playing a game of cut-and-paste in an adversarial learning setup.

Abstract: An embodiment of the present invention provides a micro light emitting diode (LED) array and its manufacturing method. The micro-LED includes a substrate, an epitaxial layer formed on the substrate, and a conversion film formed on the epitaxial layer. Pixels can be defined through lithography, and the pixel size can be very small. This method is characterized in that a mass transfer is not required.

Abstract: An embodiment of the present invention provides a micro light emitting diode (LED) array and its manufacturing method. The micro-LED includes a substrate, an epitaxial layer formed on the substrate, and a conversion film formed on the epitaxial layer. Pixels can be defined through lithography, and the pixel size can be very small. This method is characterized in that a mass transfer is not required.

Abstract: Embodiments of the present invention provide a light-emitting film, a light-emitting film array, a micro-light emitting diode (LED) array, and their manufacturing methods. In one embodiment, epitaxial layers are formed on a substrate, and a conversion film is formed on a corresponding epitaxial layer. Pixels can be defined through lithography with a very small pixel size. A mass transfer is unnecessary for this method. The produced light-emitting films and the conversion films are homogeneous films and are insoluble in water, and the manufacturing steps can be simplified due to the waterproofing function of the films.

Abstract: Example aspects of the present disclosure are directed to systems and methods that enable weakly-supervised learning of instance segmentation by applying a cut-and-paste technique to training of a generator model included in a generative adversarial network. In particular, the present disclosure provides a weakly-supervised approach to object instance segmentation. In some implementations, starting with known or predicted object bounding boxes, a generator model can learn to generate object masks by playing a game of cut-and-paste in an adversarial learning setup.

Abstract: An embodiment of the present invention provides a micro light emitting diode (LED) array and its manufacturing method. The micro-LED includes a substrate, an epitaxial layer formed on the substrate, and a conversion film formed on the epitaxial layer. Pixels can be defined through lithography, and the pixel size can be very small. This method is characterized in that a mass transfer is not required.