Abstract: The present disclosure belongs to the technical field of polymer materials, and in particular relates to a chain extender and a preparation method and application thereof, a recyclable thermosetting polyurethane and a preparation method thereof. The present disclosure provides a chain extender whose chemical formula is shown in formula I. The chain extender provided by the present disclosure contains two types of dynamic covalent bonds, and the total number of dynamic covalent bonds is 4. The thermosetting polyurethane prepared by the provided chain extender has better hot-pressing repair efficiency. The results of the examples show that under the same hot-pressing conditions, the repair efficiency of the thermosetting polyurethane prepared by the 4,4?-dithiodianiline chain extender is 59%. The repair efficiency of thermosetting polyurethane is 97%, which is significantly improved.

Abstract: Aspects of the subject disclosure may include, for example, obtaining first information indicative of data plane utilization, wherein the data plane is associated with a wireless communications network; obtaining second information indicative of control plane utilization, wherein the control plane is associated with the wireless communications network; applying the first information and the second information to one or more machine learning algorithms; and generating via the one or more machine learning algorithms one or more outputs, wherein the one or more outputs indicates whether one or more network resources should be added to improve the data plane utilization. Other embodiments are disclosed.

Abstract: An oxygen bleaching method of pulp includes the steps of: adding a solution formulated by a magnesium salt and an activator to an unbleached chemical pulp, stirring to be mixed well, and bleaching by introducing oxygen. The activators are nano zero-valent metals that are conventional, low-cost, and recyclable. These activators can activate low-concentration oxygen at low-temperature in neutral aqueous solution to efficiently generate peroxide anion radicals, so as to promote the generation of hydroperoxide anions and peroxide ions, achieving high efficient delignification. The whole process does not generate waste water, the oxygen consumption is only 50-85% of the original process, the yield is increased by 1.5-2.8% compared with the original system, the pulp brightness is increased to 28-32° SR, and the magnesium salt can be recycled and reused.

Abstract: The present provides a concrete and mortar mix and composition thereof with poor quality sand such as desert sand, hydraulic binder (cement) and filamentous cellulose, where the desert sand/spherical sand replaces conventional concrete river sands. The present disclosure also relates a filamentous cellulose, such as, cellulose filaments (CF), cellulose nano filaments, cellulose nanofibrils (CNF) and microfibrillated cellulose (MFC) as a concrete/mortar and sand adhesion additive with hydraulic binder (cement), and to a method of making the concrete. This method also relates to a method to prevent the sliding of individual sand grains against one another and therefor similarly contributes to the stabilization of the building materials.

Abstract: Systems, devices, media, and methods are presented for graphical icon identification within an image or video stream. The systems and methods receive an image including a graphical icon. The systems and methods identify a set of proposed regions of the image, at least one proposed region of the set of proposed regions containing the graphical icon and extract a set of semantic features for each proposed region of the set of proposed regions. Based on the set of semantic features of the set of proposed regions, the systems and methods identify a set of proposed icons corresponding to the graphical icon included in the image and determine a match between the graphical icon and at least one proposed icon of the set of proposed icons.

Abstract: An isobaric stable isotope-containing phosphorylated protein labeling reagent, and a preparation method and application thereof are provided. The protein labeling reagent is a phosphorylated dipeptide organophosphorus reagent labeled by a stable isotope such as deuterium-2, carbon-13, oxygen-18, or nitrogen-15. The preparation method includes: (1) preparation of an isobaric stable isotope-containing amino acid with N-terminal protection, (2) preparation of an isobaric stable isotope-containing amino acid activated ester Fmoc/Boc-R1-NHS with N-terminal protection, (3) preparation of an isobaric stable isotope-containing dipeptide, (4) preparation of an isobaric stable isotope-containing phosphite, (5) preparation of an isobaric stable isotope-containing phosphite dipeptide, and (6) preparation of a stable isotope-labeled N-phosphorylated amino acid activated ester.

Abstract: The present disclosure relates to the technical field of computer vision and digital image processing, and more particularly to a light field encoded imaging method and apparatus for a scattering scene. The method includes: obtaining scattering light field data, and extracting a refocusing focal stack corresponding to different offset pixels between views from the scattering light field data; transforming an image in the refocusing focal stack into a saturation domain to form a processed focal stack; comparing boundary sharpness degrees of each region in the processed focal stack when refocusing by different offset pixels, and extracting offset pixels corresponding to the sharpest boundary of each region by using a 1-norm operator; and converting the offset pixels into a depth map of a target based on data parameters of the light field.

Abstract: A license plate number recognition method includes: extracting license plate number features of an image to be recognized including a license plate number, through a pre-trained convolutional neural network; extracting an intermediate convolution result during extracting the license plate number features, and extracting a first verification feature and/or a second verification feature according to the intermediate convolution result; verifying whether the license plate number features are correct according to the first and/or second verification features; if correct, outputting a predicted license plate number result according to the license plate number features.

Abstract: The application provides a porous carbon block material having high elasticity and high sealing, and provides a method for preparing the same. Particularly, the present application provides a porous carbon block material, wherein the porous carbon block material has a pore size in the range of from 3 nm to 100 nm, a porosity of from 50% to 87%, and the pores in the material are closed pores. In addition, the application provides a method for preparing the porous carbon block material according to the present application. The porous carbon block material according to the present application has small pore size, high porosity, and closed pores, and thus has high strength combined with high elasticity, high sealing property, and low density. Hence, the porous carbon block material according to the present application may be used as a sealing material.

Abstract: Disclosed is an automobile tire burst simulation experiment device, which is fixed on a rim installed with an automobile tire. The automobile tire burst simulation experiment device comprises a pre-tightening triggering device, a retracting device, a storage battery and a controller, the tire burst simulation experiment device according to the present invention uses two drive motors to drive two sets of roller screw slide rails, so as to drive the breakdown device away from and close to the tire to achieve a simulated tire burst and rapid deflation. The experiment device has the characteristics of quick installation, low cost, strong versatility, and adjustable speed; the device can be applied to the tire burst experiment under different vehicle speeds and road conditions of various automobile models. The structure is simple and the simulation control accuracy is high. After the tire burst, the subsequent experiments of the vehicle are not affected.

Abstract: Provided are a strain ofBeijerinckia fluminensis and an application thereof in arsenic oxidation. The strain is AS-56, and has been deposited in the China Center for Type Culture Collection on 5 Dec. 2019, the deposit number being CCTCC NO: M 20191014. The strain AS-56 of Beijerinckia fluminensis can oxidise As(III) to the less toxic As(V) and can completely oxidize 0.15 g/L of As(III) solution to As(V), greatly reducing arsenic toxicity, and thus having wide prospects for application in environmental remediation.

Abstract: Methods and apparatus automatically identify which Internet-of-Things (IoT) devices within a set are behaving in a manner non-compliant with a target behavior. Each IoT device is assigned to a grid point in a notional m-dimensional space. A respective assessment module is arranged to monitor behavior of a group of IoT devices assigned to grid points aligned with one another at a respective position along the respective dimension, and to produce an output indicative of non-compliant behavior if the monitoring indicates that behavior in the group of IoT devices deviates from a behavioral model of the IoT devices of said group. An identification module identifies at least one non-compliant IoT device in the set of IoT devices by combining outputs from the assessment modules assigned to the different dimensions of the space. The assessment modules may use trained machine-learning algorithms embodying a model of normal behavior of the group of devices.

Abstract: In various embodiments described herein, a visualization system receives message requests from client devices, wherein the message requests comprise at least location data that identifies a location of a client device, and media content, wherein the media content includes at least one of image data, audio data, and video data. In response to receiving the message requests that comprise the media content, the visualization system analyzes and parses the media content to detect one or more tags embedded within the media content. In response to detecting the tag, the visualization system identifies a campaign or account referenced by or associated with the tag. Based on the identification of the campaign based on the tag within the media content, the visualization system determines a distribution of the campaign based on the location data from the message request.

Abstract: An information processing apparatus, a vehicle, and an information processing method each capable of improving the visibility of an on-board meter panel. Information processing apparatus includes information acquirer that acquires traveling information on traveling of a vehicle including an on-board meter panel; and display pattern changer that changes a display pattern of the on-board meter panel in accordance with change in the traveling information.

Abstract: Embodiments of a differential bootstrapped track-and-hold circuit are disclosed. In an embodiment, the differential bootstrapped track-and-hold circuit includes first and second single-ended bootstrapped track-and-hold circuits. Each single-ended bootstrapped track-and-hold circuit includes a sampling switch connected between an input terminal and an output terminal, a sampling capacitor connected to the output terminal, and a dummy sampling switch connected between the input terminal and a dummy output terminal. The sampling switch and the dummy sampling switch are controlled by a bootstrap driver connected to the input terminal.

Abstract: Embodiments of a differential bootstrapped track-and-hold circuit are disclosed. In an embodiment, the differential bootstrapped track-and-hold circuit includes first and second single-ended bootstrapped track-and-hold circuits. Each single-ended bootstrapped track-and-hold circuit includes a sampling switch connected between an input terminal and an output terminal, a sampling capacitor connected to the output terminal, and a dummy sampling switch connected between the input terminal and a dummy output terminal. The sampling switch and the dummy sampling switch are controlled by a bootstrap driver connected to the input terminal.

Abstract: Distribution of traffic to cells in a communication network can be controlled. A distribution management component (DMC) can determine overall device traffic throughput for cells of a sector that satisfy a defined traffic throughput criterion relating to a harmonic mean of the device traffic throughput for the cells to desirably enhance or maximize the harmonic mean of the overall device traffic throughput. Based on the overall device traffic throughput for the cells, the DMC can determine whether to adjust a characteristic associated with a cell of the cells to facilitate adjusting distribution of device traffic among the cells of the sector to achieve desirable load balancing of traffic by the sector and in the network. Load balancing can be achieved by controlling respective parameters with regard to communication devices that are in idle mode or connected mode to facilitate directing communication devices and associated traffic to desired cells.

Abstract: The present disclosure belongs to the technical field of polymer materials, and in particular relates to a chain extender and a preparation method and application thereof, a recyclable thermosetting polyurethane and a preparation method thereof. The present disclosure provides a chain extender whose chemical formula is shown in formula I. The chain extender provided by the present disclosure contains two types of dynamic covalent bonds, and the total number of dynamic covalent bonds is 4. The thermosetting polyurethane prepared by the provided chain extender has better hot-pressing repair efficiency. The results of the examples show that under the same hot-pressing conditions, the repair efficiency of the thermosetting polyurethane prepared by the 4,4?-dithiodianiline chain extender is 59%. The repair efficiency of thermosetting polyurethane is 97%, which is significantly improved.

Abstract: The invention discloses a method for identifying the bacterial species and key functional genes thereof involved in antimony reduction in the soil. After consuming the original substrate by starvation culture, the sole metabolic substrate is added and the sole electron acceptor Sb(V) is provided, so that there is only one dominant electron exchange process in the system. The microorganisms metabolize and oxidize the organic substrate while coupling with the reduction of antimony, so that Sb(V) gets electrons and is reduced to Sb(III). The present invention observes the Sb(V) reduction in an anaerobic culture system of paddy soil under Sb(V) stress, and uses DNA-SIP technology to identify the phylogenic information of microorganisms that can drive the Sb(V) reduction in the culture system.