Abstract: Various embodiments describe frame selection based on training and using a neural network. In an example, the neural network is a convolutional neural network trained with training pairs. Each training pair includes two training frames from a frame collection. The loss function relies on the estimated quality difference between the two training frames. Further, the definition of the loss function varies based on the actual quality difference between these two frames. In a further example, the neural network is trained by incorporating facial heatmaps generated from the training frames and facial quality scores of faces detected in the training frames. In addition, the training involves using a feature mean that represents an average of the features of the training frames belonging to the same frame collection. Once the neural network is trained, a frame collection is input thereto and a frame is selected based on generated quality scores.

Abstract: A method, an apparatus, device, and a computer-readable storage medium for processing information are provided. The method is used in a first network device, and includes receiving information related to a second network device, determining a first resource configuration corresponding to a coverage classification related to the second network device based on the information, and transmitting the first resource configuration to the second network device. The method may obtain the first resource configuration through making prediction and calculation analysis based on the information, which may achieve dynamic configurations of different coverage classifications, save energy consumption, and improve system capacity and performance at the same time.

Abstract: A roller embossing method for flexible graphite polar plates of fuel cells comprises: (1) adjusting a clearance of an embossing roller pair of a roller press to a target thickness value of a monopolar plate; (2) feeding a flexible graphite slab in front of the embossing roller pair, and entangling the flexible graphite slab by means of opposite rotation of the embossing roller pair; (3) after the slab is entangled, continuing to forward roll the slab for 10-100 mm, and then reversely rolling the slab for 5-90 mm by means of synchronous and opposite rotation of an upper and a lower embossing roller, wherein one time of forward rolling and one time of reverse rolling are referred to as reciprocal rolling; (4) forming a polar plate after several times of reciprocal rolling, and separating the polar plate from the embossing rollers; (5) performing subsequent treatment on the roll-formed flexible graphite polar plate.

Abstract: A labeling method is provided. In the method, target image data of a target image is acquired from an offline storage device. The target image data is encrypted based on a first target account. A permission to load the target image data is verified based on a second target account logged in to a labeling client. The target image is loaded in the labeling client in response to the permission to load the target image being verified when the second target account logged in to the labeling client matches the first target account. A label for the target image is received. Further, the label for the target image is transmitted to a server. The server is configured to store the label in association with the target image. Apparatus and non-transitory computer-readable storage medium counterpart embodiments are also contemplated.

Abstract: The present disclosure relates to the technical field of solid waste recycling and fabricated buildings, and provides a solid waste large-mixing-amount concrete prefabricated laminated slab and a preparation method thereof. The solid waste large-mixing-amount concrete prefabricated laminated slab provided by the present disclosure comprises a prefabricated layer and a laminated layer. Transverse grooves and longitudinal grooves are formed in the surface of the prefabricated layer. During application, the grooves can be used for erecting pipelines, the contact area of the prefabricated layer and the laminated layer can also be increased, the combined effect of new concrete and old concrete is improved, the integrity of a floor slab is enhanced, and the effect of improving the overall stress capacity of the floor slab is achieved.

Abstract: A method and a system for providing calibration for a polychromatic photon counting detector forward counting model. Measurements with multiple materials and known path lengths are used to calibrate the photon counting detector counting response of the forward model. The flux independent weighted bin response function is estimated using the expectation maximization method, and then used to estimate the pileup correction terms at plural tube voltage settings for each detector pixel. The beam hardening corrections are then applied to the measured projection data sinogram, and the corrected sinogram is reconstructed to the counting image at the selected single energy.

Abstract: Provided are antibodies that specifically recognize B7 homology 3 protein (B7-H3).

Abstract: A heating electrode for lowering stress of a light waveguide and a VOA. The heating electrode is provided on an upper cladding layer (04) of a PLC waveguide. The heating electrode is formed by combining two or more sub-heating electrodes (13) arranged at internals. Adjacent sub-heating electrodes (13) are connected by means of conductive electrodes (14) having a conductive function. By dividing a complete elongated heating electrode into a plurality of sub-heating electrodes (13), the stress exerted to a waveguide core layer is lowered without affecting the heating efficiency, and thus the reliability of optical indexes of a device is effectively improved.

Abstract: A method and a system for a two-step calibration method for the polychromatic semiconductor-based PCD forward counting model, to account for various pixel summing readout modes for imaging at different resolutions. The flux independent weighted bin response function is estimated using the expectation maximization method, and then used to estimate the pileup correction terms at plural tube voltage settings for each detector pixel. To correct the variation of the detector response due to different PCD sub-pixel summing schemes, the embodiments calibrate forward model parameters based on the various pixel readout modes.

Abstract: The present disclosure discloses a display substrate and a manufacturing method thereof, a display panel, and a display apparatus. The display substrate comprises: a base substrate, and display units on the base substrate; each of the display units comprises: an anode, a hole transporting layer, an electroluminescent layer, an electron transporting layer and a cathode, all of which are superposed in sequence; a plurality of nano-grooves are disposed on a surface of at least one of the hole transporting layer and the electron transporting layer, the surface is in contact with the electroluminescent layer; and a distance between any two adjacent nano-grooves is on a nanometric order of magnitude. The present disclosure is useful in improving the capability of the display units in resisting bending and preventing the display units from being ruptured due to a bending process.

Abstract: Described herein are CD73 inhibitors and pharmaceutical compositions comprising said compounds. The subject compounds and compositions are useful for the treatment of cancer, infections, and neurodegenerative diseases.

Abstract: Disclosed is a method for preparing aromatic hydrocarbons by hydrocracking a polymer containing aromatic rings, which includes reacting the polymer fragment with hydrogen under the action of a catalyst at a temperature of no more than 350° C.; separating a reaction product to obtain the aromatic hydrocarbons. The catalyst comprises a carrier and an active ingredient supported on the carrier, the active ingredient is at least one selected from Ru, Rh, Pt, Pd, Fe, Ni, Cu and Co, the carrier is at least one selected from metal oxide, phosphate, molecular sieve, SiO2 and sulfonated carbon, the metal oxide is at least one selected from Al2O3, Nb2O5, Nb2O5—Al2O3, Nb2O5—SiO2, TiO2, ZrO2, CeO2 and MoO3; the phosphate is at least one selected from NbOPO4 and ZrOPO4; and the molecule sieve is at least one selected from Nb-SBA-15, Nafion, H-ZSM-5, H-Beta and H-Y.

Abstract: A method for ecologic configuration of an oil production wastewater artificial wetland to realize up-to-standard operation in winter. When artificial wetland is utilized to treat oil production high-salt wastewater, ecologic configuration of subsurface and surface flow artificial wetland is modified to realize up-to-standard operation in winter. Subsurface flow artificial wetland is composed of soil matrix, water distribution pipe disposed on bottom of soil matrix, wrapped with water-permeable nonwoven cloth and configured to deliver wastewater, and reeds with root systems growing on an inner side of wall of water distribution pipe, stems growing on outer side of wall of water distribution pipe and length being greater than thickness of soil matrix; and surface flow artificial wetland is composed of soil matrix, reeds growing on matrix, water, winter aquatic salt-resistant cold-liking plants, block-stocked fishes, shrimps, crabs, mussels, Mytilus edulis, oysters or clams and artificial sand dam.

Abstract: The present invention discloses a triple-resonant null frequency scanning antenna, which belongs to the technical fields of the Internet of Things and microwave. The triple-resonant null frequency scanning antenna comprises a circular sector magnetic dipole arranged on a medium substrate, and rectangular notches are symmetrically arranged on a sector patch of the circular sector magnetic dipole. The circular sector magnetic dipole is fixed on the medium substrate by a second shorting pin and third shorting pins, an flared angle of the circular sector magnetic dipole is a first central angle, and two third shorting pins are present and are symmetrically arranged on both sides of the angular bisector of the first central angle.

Abstract: A cooperative emission reduction method for sintering using an energy-carrying composite gas is disclosed. A surface of a sintered material is divided into an ignition section, a heat preservation section, a middle section, a flue gas heating section, and a machine tail section from a machine head to a machine tail of a sintering machine; according to flue gas components, temperature characteristics, and heat requirements of different sections, a hot exhaust gas is introduced to the ignition section for ignition, a hot exhaust gas is introduced to the heat preservation section and a hydrogen-rich gas is cascadingly sprayed synchronously, cascaded spraying of water vapor is coupled based on spraying of a hydrogen-rich gas in the middle section, and the high-temperature flue gas in the machine tail section and the flue gas in the ignition section and/or the heat preservation section are circulated to the heating section.

Abstract: The present disclosure provides an aluminum bottle and a preparation method thereof and belongs to the technical field of alloy. The present disclosure can improve the structure and enhance impact mechanical properties of an aluminum material by controlling a content of manganese to be 0.03-0.5 wt. %. Nickel can improve the strength and rust resistance of the aluminum material. Strontium can form an aluminum-strontium combination to adjust the crystal orientation of a metal lattice, improve forming, and greatly enhance the flexibility. Zirconium acts synergistically to improve the corrosion resistance of the aluminum material and improve surface gloss. The prepared aluminum material is light in weight and has the advantage of high bearing strength.

Abstract: The present invention discloses a droplet digital PCR chip. The droplet digital PCR chip includes at least one chip unit, each chip unit includes a chip body formed by bonding a top piece and a bottom piece, the chip body is internally provided with an inlet chamber, a droplet storage chamber, and an injection hole. The injection hole connects with the inlet chamber, a plurality of droplet generating channels are disposed between the inlet chamber and the droplet storage chamber, a height of the droplet generating channel is smaller than a height of the droplet storage chamber, an injection fluid is injected into the inlet chamber through the injection hole, and the injection fluid is emulsified and enters the droplet storage chamber at a junction of the droplet generating channels and the droplet storage chamber.

Abstract: Described herein are CD73 inhibitors and pharmaceutical compositions comprising said compounds. The subject compounds and compositions are useful for the treatment of cancer, infections, and neurodegenerative diseases.

Abstract: The present disclosure relates to an energy-efficient optimized computing offloading method for a vehicular edge computing network and a system thereof; the method comprises: calculating the energy efficiency cost EEC of local computing; calculating the energy efficiency cost EEC of mobile edge computing; determining an optimal offloading decision based on the energy efficiency cost of local computing and the energy efficiency cost of mobile edge computing; determining an optimal CPU frequency and an optimal transmit power of the vehicle based on the optimal offloading decision; and determining the optimal offloading time of the vehicle based on the optimal CPU frequency and the optimal transmit power of the vehicle. The method of the present disclosure can improve the computing offloading efficiency.

Abstract: A noise reduction apparatus includes a housing, a first baffle component, and a second baffle component. The housing includes a first installation chamber configured to contain diesel generating equipment, and the first installation chamber has a top plate, a bottom plate, and a first side plate, and a second side plate that is disposed opposite the first installation chamber from the first side plate. An air intake vent is disposed on the first side plate, and an air exhaust vent is disposed on the second side plate. A first serpentine channel is formed in the first baffle component, and one end of the first serpentine channel is connected to the air intake vent. A second serpentine channel is formed in the second baffle component, and one end of the second serpentine channel is connected to the air exhaust vent.