Abstract: The present disclosure provides a method for evaluating a pipeline cleaning solution based on smart gas and an Internet of Things system. The method comprises: obtaining an operation feature of at least one gas pipeline and inspection data of the at least one gas pipeline; determining an area to be cleaned and an area feature of the area to be cleaned; generating at least one candidate pipeline cleaning solution based on the area feature of the area to be cleaned; processing each of the at least one candidate pipeline cleaning solution and the area feature through a pipeline cleaning effect prediction model to determine a pipeline cleaning effect of each of the at least one candidate pipeline cleaning solution; determining a pipeline cleaning solution based on the pipeline cleaning effect; and evaluating a pipeline cleaning effect of the pipeline cleaning solution based on an implementation of the pipeline cleaning solution.

Abstract: The present disclosure discloses a method for determining an abnormal device in a process of measuring energy of natural gas based on Internet of Things (IOT). The method may include obtaining a natural gas detection parameter detected by at least one detection device via a sense network platform in response to a query request; determining first energy data and second energy data by processing the natural gas detection parameter; determining whether the abnormal device exists by comparing the first energy data and the second energy data; in response to determining that the abnormal device exists, for each detection device, determining a probability that the detection device is abnormal based on related information of the detection device, the first energy data, and the second energy data; and determining the abnormal device based on the probability that the detection device is abnormal.

Abstract: The present disclosure provides a display panel, a method for preparing the same, and a display device. The display panel includes pixel units distributed in an array in a display area, where the pixel units include sub-pixels, at least one of which has a maximum grayscale value voltage different from a maximum grayscale value voltage of the other sub-pixel; and a switching circuit including switching units on a side of the display area, where one end of the switching unit is connected to a data line. In two adjacent columns of pixel units, two sub-pixels having the same maximum grayscale value voltage are connected to two adjacent switching units through data lines, respectively.

Abstract: A heat dissipation device with a heat-insulating channel includes a thermal conductive substrate, multiple heat dissipation fins stacked with spacing from one another on the thermal conductive substrate, and at least one insulation guiding component. The heat dissipation fins have at least one configuration space for the insulation guiding component to be installed, a bottom portion, two sides upwardly extended from the bottom portion, and a channel enclosed by the bottom portion and two sides. A width of the channel is at least greater than the spacing between any two adjacent heat dissipation fins.

Abstract: The present disclosure provides a detecting apparatus, system, and method, and belongs to the technical field of detection. The detecting apparatus includes a beam splitting device, a first dichroic mirror, an objective lens, a fluorescence guiding device, and an imaging system including a plurality of imaging devices.

Abstract: An optical system includes an objective lens module, an image inverting module, and an eyepiece module. The objective lens module includes a first lens group, a second lens group, a third lens group, a fourth lens group, and a fifth lens group. The optical system satisfies at least one of the following conditions: 0.45?LG4D/LG1D?0.8; 0.015 mm?1?1/fG3?0.045 mm?1; 0.045 mm?1?|1/fG4|?0.07 mm?1; 0.35?|fG4/fG3|?0.75; 0.15?fG1/f?1.6; wherein LG4D is an effective optical diameter of the fourth lens group, LG1D is an effective optical diameter of the first lens group, fG1 is an effective focal length of the first lens group, fG3 is an effective focal length of the third lens group, fG4 is an effective focal length of the fourth lens group, and f is an effective focal length of the objective lens module.

Abstract: The present disclosure discloses an industrial Internet of things with a sensor network platform in a front sub platform type, comprising: a user platform, a service platform, a management platform, a sensor network platform, and an object platform which are interacted sequentially. The sensor network platform adopts front sub platform layout, which can process data for different target objects, and then summarize data, so as to reduce the data processing capacity of entire sensor network platform. The management platform is arranged independently to form multiple independent data processing channels of the same or different. The gateway on each communication network shares part of the calculation for the management platform, effectively reducing the calculation pressure of the management platform, and ensuring that the data is transmitted according to a specific path or processed by a specific server, so as to ensure the safety and independence of the data.

Abstract: The embodiments of the disclosure provide a method, apparatus, device and storage medium for presenting information, which relate to the technical field of computers. The method includes: obtaining object search information, in response to the object search information being object category information, determining a target object category corresponding to the object search information, and presenting object information of a plurality of target objects corresponding to the target object category in a search result presentation page; where all the plurality of target objects are different, and object information of a target object includes object attribute information and image resource information of the target object. By employing the above technical solution, when the user is searching the object category, object information of a plurality of target objects different from each other corresponding to the target object category is presented in the search result page.

Abstract: The disclosure provides an Internet of Things system and a method for managing a people flow of a public place in a smart city. The method may comprise obtaining pedestrian distribution information in a preset area during a current time period via network from a storage device; determining, by processing the pedestrian distribution information through an area location prediction model, at least one area location in the preset area for a future time period, a population flow load of the area location being greater than a first threshold, wherein the area location prediction model includes a graph neural network model, a graph input into the graph neural network model includes at least two nodes and at least one edge; generating, based on the area location, prompt information; and feedbacking the prompt information to a user terminal of a user platform through a service platform via the network.

Abstract: The present disclosure discloses an industrial Internet of Things (IoT) of integrating centralized platforms and rear sub-platforms, the industrial IoT includes a user platform, a service platform, a management platform, a sensor network platform, and an object platform interacting in sequence, both the service platform and the sensor network platform are arranged using a centralized platform arrangement and the management platform is arranged using a rear sub-platform arrangement, the production line manufacturing equipment and the production line accessory supply equipment collect accessory data of corresponding equipment through the equipment data collectors and add the index item information through the management platform. Therefore, the corresponding index item information is classified and processed by sub-platforms of corresponding and different management platforms, so as to ensure the transmission and classification of data.

Abstract: A method for preventing cracking of nickel-based superalloy fabricated by selective laser melting (SLM) belongs to the field of additive manufacturing (AM). The method of preparing an as-built part with a high density, no crack defects, and good mechanical properties includes: reducing the content of elements Zr and B forming low melting point phase in a nickel-based superalloy, adjusting the total content of Al and Ti in the alloy to 4.5 wt % or below, and combining with the control of special SLM process parameters. The new method has the advantages of a reasonable component design, a simple preparation process, and good performance of the as-built part, and therefore is suitable for large-scale application.

Abstract: Disclosed is monitoring and early warning method for gas gate station and IoT system thereof. The method comprises: obtaining a downstream user feature and historical warning data corresponding to the gas gate station; determining, based on the downstream user feature and the historical warning data and in combination with operation data of the gas gate station, an associated node related to the gas gate station in a preset time period; obtaining monitoring data of the associated node; determining a pipeline network monitoring feature based on pipeline network monitoring data; determining ideal operation data of the gas gate station at a future time through a prediction model, the gate station operation data, and the pipeline network monitoring feature; and issuing an early warning notification in response to a difference between gate station monitoring data and the ideal operation data exceeding a threshold.

Abstract: Provided are a data collection method and apparatus, network device, and storage medium. The method includes: receiving, by a first network data analytics function (NWDAF), a first message sent by a consumer, the first message is provided for requesting or subscribing to an NWDAF analytics service, wherein the first message includes a first parameter, the first parameter at least including at least one of: an event identifier (ID), a data collection time parameter, or area information; inquiring, by the first NWDAF through a first network device before starting data collection, whether an existing NWDAF is collecting or has already stored data matching the first parameter, and executing, by the first NWDAF, a corresponding data collection strategy according to an inquiry result.

Abstract: An optical lens set includes a first lens element of an object-side surface with a convex portion in a vicinity of an optical axis, a second lens element of an image-side surface with a concave portion in a vicinity of its periphery and a sixth lens element of an image-side surface with a convex portion in a vicinity of its periphery. T5min is the minimal distance from the object-side surface of the fifth lens element to the image-side surface of the fifth lens element and the fifth lens element has a fifth lens element thickness T5 along the optical axis to satisfy T5min/T5?0.6.

Abstract: At least some aspects of this disclosure include one or more auxinic herbicides with relatively low volatility. Some of these compounds may be especially useful when used in the process of growing commercially important plants. Methods for using these actives to control the growth and spread of unwanted plants and/or to hasten the growth of desirable plants are also disclosed herein.

Abstract: The present invention relates to an additive manufacturing system and its methods. The system includes a material conveyor, an energy source, and a micro-forging device. The material conveyor is configured to convey material. The energy source is configured to direct an energy beam toward the material, the energy beam fuses at least a portion of the material to form a solidified portion. The micro-forging device is movable along with the material conveyor for forging the solidified portion, wherein the micro-forging device comprises a first forging hammer and a second forging hammer, the first forging hammer is configured to impact the solidified portion to generate a first deformation, and the second forging hammer is configured to impact the solidified portion to generate a second deformation greater than the first deformation.

Abstract: An additive manufacturing system, comprises an energy source device for providing a first energy beam and a second energy beam; and a forging device comprising a forging head. The first energy beam and a substrate are configured to move relative to each other to fuse at least a portion of a material added to the surface of the substrate for forming a cladding layer on the substrate. The forging head is configured to forge the cladding layer during formation of the cladding layer. The second energy beam is configured to heat a forging area of the cladding layer.

Abstract: Provided are a data collection method and apparatus, network device, and storage medium. The method includes: receiving, by a first network data analytics function (NWDAF), a first message sent by a consumer, the first message is provided for requesting or subscribing to an NWDAF analytics service, wherein the first message includes a first parameter, the first parameter at least including at least one of: an event identifier (ID), a data collection time parameter, or area information; inquiring, by the first NWDAF through a first network device before starting data collection, whether an existing NWDAF is collecting or has already stored data matching the first parameter, and executing, by the first NWDAF, a corresponding data collection strategy according to an inquiry result.

Abstract: A system is configured for machining a workpiece (100), the workpiece includes an interior surface (110) that defines an internal passage (112). The system includes an electrode (116) located within the internal passage and electrically isolated from the workpiece, an electrolyte supply, a power supply, and a remover. The electrolyte supply is configured for circulating an electrolyte in a gap between the electrode and the workpiece. The power supply is configured for applying a voltage between the electrode and the workpiece to facilitate smoothing the interior surface. The remover is configured for completely removing the electrode from within the internal passage after smoothing the interior surface.