Abstract: The present inventive concept relates to a solar cell, a unit cell included in the solar cell, and a method for manufacturing the solar cell, the solar cell comprising: a first unit cell manufactured using any one piece from among a plurality of pieces formed by separating a mother substrate; and a second unit cell coupled to the first unit cell, wherein the first unit cell comprises a first cell electrode provided on a first unit substrate and having conductivity, the second unit cell comprises a second cell electrode provided on a second unit substrate and having conductivity, and the second cell electrode and the first cell electrode are bonded to each other without a bonding material to couple the second unit cell to the first unit cell.

Abstract: Provided are a foamed product with a high level of design, and the like. The problem is solved by a foamed product including: a foam medium with a first part protruded by foaming and a second part that is lower than the first part; and a decorative part with a plurality of decorative particles, formed only in the second part of the first part and the second part, and a manufacturing method for a foamed product, including: a first step of foaming a foam medium to form, in the foam medium, a first part protruded by the foaming and a second part that is lower than the first part; and a second step of fixing a plurality of decorative particles only to the second part of the first part and the second part.

Abstract: Battery exchange system for an electric vehicle, comprising: a battery unit; a battery receiving unit adapted for being fixed at or near a bottom surface of an electric vehicle and comprising a housing with an opening at a bottom side of housing for at least partially receiving the battery unit in the housing through the opening, wherein the battery receiving unit has a central axis which extends through the opening; wherein the battery receiving unit is adapted for allowing movement of the battery unit along its central axis between an unmounted position below the battery receiving unit and a mounted position at least partially within the battery receiving unit, wherein the battery unit comprises first engagement elements and the battery receiving unit comprises second engagement elements, each of the first and second engagement elements being adapted for engaging each other while moving relative to each other along an associated sloping path in order to lift the battery unit from the unmounted position to t

Abstract: Disclosed is a double-layer oil film lubrication analysis method and system based on a floating bushing. The method includes: determining a roller motion track and a floating bushing motion track according to a roller displacement and a floating bushing displacement; determining, when the motion tracks are closed end to end, minimum values of inner-layer and outer-layer oil film thickness of the floating bushing according to an oil film thickness at each moment; and determining that an abnormality exists in double-layer oil film lubrication when either of the minimum values of the inner-layer and outer-layer oil film thickness of the floating bushing is less than a preset oil film thickness threshold value. According to the present disclosure, more accurate abnormality analysis of double-layer oil film lubrication can be realized.

Abstract: A method may include: providing bio waste stream wherein the bio waste stream comprises at least one bio waste selected from the group consisting of palm oil mill effluent, soapstock, and combinations thereof; introducing the bio waste effluent stream into a fluidized catalytic cracking unit; contacting the bio waste with a catalyst in the fluidized catalytic cacking unit; and cracking at least a portion of the bio waste stream to form cracked products that comprise a cracked product stream.

Abstract: A method for direct write printing of an electrical or optical element based upon a generated master actual position map and a master expected position map is disclosed. The generated master actual position map is generated by efficiently stitching together a number of images using a hierarchical stitching process. Once the desired location of the electrical or optical element is determined by comparing the master actual position map with the master expected position map, a corresponding toolpath for a direct write printer is generated. The direct write printer then direct write prints the electrical or optical element using the generated toolpath. By using different types of inks, the electrical element may be a trace, a resistor, an inductor, a transformer, a capacitor, or some combination thereof. In like manner, the optical element may be a waveguide, a beam-splitter, a phase shifter, an optical attenuator, an interferometer, or some combination thereof.

Abstract: A reforming element for a molten carbonate fuel cell stack and corresponding methods are provided that can reduce or minimize temperature differences within the fuel cell stack when operating the fuel cell stack with enhanced CO2 utilization. The reforming element can include at least one surface with a reforming catalyst deposited on the surface. A difference between the minimum and maximum reforming catalyst density and/or activity on a first portion of the at least one surface can be 20% to 75%, with the highest catalyst densities and/or activities being in proximity to the side of the fuel cell stack corresponding to at least one of the anode inlet and the cathode inlet.

Abstract: The invention relates to a control fitting having a two-way cross-fitting, which has an inlet connecting piece, an outlet connecting piece and a passage connecting piece, and having a control element which is arranged in a guide connecting piece of the control fitting so as to be movable between an open position and a closed position, wherein the outlet connecting piece, in the open position of the control element, communicates with the inlet connecting piece and, in the closed position of the control element, is blocked relative to the inlet connecting piece and the passage connecting piece communicates with the inlet connecting piece both in the open position and in the closed position of the control element, and wherein the guide connecting piece has, on an end remote from the outlet connecting piece, an opening for receiving the control element.

Abstract: An optical device includes a substrate, an electronic component and a lid. The electronic component is disposed on the substrate. The lid is disposed on the substrate. The lid has a first cavity over the electronic component and a second cavity over the first cavity. The sidewall of the second cavity is inclined.

Abstract: Shrimp processing apparatus to head and optionally sever the mud veins of shrimp, along with methods for heading and mud vein severing are described herein. The shrimp processing apparatus may be provided in systems may include one or more processing stations configured to perform one or more of the following functions on each shrimp: measurement of individual shrimp, severing the mud vein of individual shrimp, and heading of individual shrimp.

Abstract: A semiconductor device package and a method of manufacturing the same are provided. The semiconductor device package includes a first circuit layer, a second circuit layer under the first circuit layer, a first electronic component between the first circuit layer and the second circuit layer and connected to the first circuit layer and a sub-package between the first circuit layer and the second circuit layer and connected to the second circuit layer. The sub package comprises a second electronic component under the first electronic component and a conductive structure configured to dissipate heat generated from the first electronic component.

Abstract: The present invention provides a supramolecular hot melt adhesive. The present application also provides a method for preparing a supramolecular hot melt adhesive, comprising the steps of: A) dissolving a diol oligomer or diamine oligomer in a solvent, and reacting the mixture with diisocyanate under the action of a catalyst to obtain an initial reactant; B) mixing 2-amino-4-hydroxyl-6-methylpyrimidine, the initial reactant and a solvent for reaction; C) reacting the reactant obtained in step B) with a multifunctional crosslinking agent to obtain the supramolecular hot melt adhesive. The preparation method of the present invention constructs a supramolecular material with excellent strength, toughness and self-healing ability by a synergistic effect of multiple hydrogen bonds between carbamate or ureido group and pyrimidine group.

Abstract: Disclosed here are a method of marking a dark-colored surface with a dark-colored LiDAR-reflective material and a marking composition comprising the dark-colored LiDAR-reflective material and a marking carrier. Particularly, the dark-colored LiDAR-reflective material comprises has a reflectivity in the visible spectrum of electromagnetic radiation that is ?10% and a reflectivity in the near-IR and LiDAR spectrum of electromagnetic radiation that is ?10%.

Abstract: A plant-based electrochemical device for ecological restoration of a polluted river or lake and a using method thereof are provided. The plant-based electrochemical device includes a sediment, where a plurality of first electrodes are provided in the sediment, the plurality of first electrodes each include a plurality of staggered cylinders, an outer side of each of the plurality of cylinders is provided with an electrically-conductive layer, and the electrically-conductive layer is electrically connected to an external power supply; a plurality of upright posts are symmetrically fixed in the sediment, the plurality of upright posts are fixedly connected to a second electrode through a fixing mechanism, and the second electrode is located at a water surface and is electrically connected to the external power supply; and a plurality of ecological landscape floating islands are provided on the water surface.

Abstract: Polymer-nanocarbon composites, fiber-reinforced polymer composites, carbon matrix-nanocarbon composites, fiber-reinforced carbon matrix-nanocarbon composites, and methods for their manufacture are provided. The composites comprise one or more nanocarbon materials, optionally comprise fibers, and are produced from one or more polymers containing aromatic hydrocarbon moieties and/or aromatic heterocyclic moieties. The composite matrices may comprise thermoplastics or thermosets and may find use in, for example, infrastructure applications.

Abstract: Disclosed are a hydrogenation catalyst, a preparation method therefor and use thereof. The hydrogenation catalyst includes a carrier and an active component supported on the carrier, wherein the carrier is nitrogen-doped carbon, and the active component is a bimetal selected from Ru—Fe, Ru—Co, Ru—Ni or Ru—Cu.

Abstract: Systems, methods, and non-transitory computer-readable medium for estimating a position of a tail of a vehicle queue are provided. The methods include determining an initial estimated position of a tail of a vehicle queue comprising a plurality of vehicles relative to a beginning of a road section using vehicle sensors, estimating distance between a preceding vehicle and the tail of the vehicle queue based on driving data of the preceding vehicle, estimating a position of the tail based on the estimated distance and distance between an ego vehicle and the preceding vehicle, and estimating a final position of the tail based on the initial estimated position and the estimated position of the tail.

Abstract: An optoelectronic package structure is provided. The optoelectronic package structure includes a first photonic component, a second photonic component, and an interposer. The first photonic component is disposed over the second photonic component. The interposer is optically coupled between the first photonic component and the second photonic component. The interposer is configured to define a first signal path therebetween.

Abstract: A method for 3D positioning in a subway construction site. The method includes: establishing a 3D coordinate system corresponding to a shaft area, and determining a coordinate of each UWB base station set in different layers of the shaft area; ranging a positioning label through each UWB base station; filtering and discarding error data from the ranging data; dividing the 3D coordinate system into a plurality of equal cube grids, selecting a preset number of UWB base stations from the set UWB base stations based on the filtered result, and determining a position record of the positioning label in each cube grid in turn based on coordinates of the selected UWB base stations and corresponding ranging data, and the center point coordinate of each cube grid; and determining a conclusion coordinate of the positioning label by voting based on the position record of each cube grid.

Abstract: Disclosed are a polycarbonate and a preparation method therefor and an application thereof. The polycarbonate comprises at least one of structural units selected from a structural unit represented by formula (I) and a structural unit represented by formula (II). The polycarbonate provided by the present application has a high refractive index, and the obtained polycarbonate has a refractive index of 1.673-1.794, which can satisfy performance requirements of polycarbonate as an optical resin in optical components.