Abstract: Method and an IoT system for gas gate station monitoring are provided. The method includes obtaining operation data of a gas gate station; obtaining a downstream user feature corresponding to the gas gate station 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 the operation data, the associated node in a preset time period, the associated node including at least one of a gate station internal node and an external pipeline network node; obtaining monitoring data of the associated nodes, the monitoring data at least including node monitoring data of the gate station internal node and node monitoring data of the external pipeline network node; and issuing a warning notification in response to the monitoring data not satisfying a preset condition.

Abstract: A data caching method comprises: receiving message data returned by a second device in response to a read command; dividing the message data into two paths of data according to a preset strategy, sending one of the two paths of data to a first random access memory for storage, and distributing the other path to a double data rate synchronous dynamic random access memory for storage through a first input first output queue, wherein a sum of a working bandwidth of the first random access memory and a working bandwidth of the double data rate synchronous dynamic random access memory is greater than or equal to a receiving bandwidth of the message data; and sending data stored in the first random access memory and data stored in the double data rate synchronous dynamic random access memory to a first device connected with network equipment.

Abstract: A method for preparing a nano spherical oxide dispersion strengthening phase using a micron oxide is proposed for the first time. First, a micron oxide is used as a raw material to prepare a nano oxide with a completely amorphous structure/matrix alloy composite powder by mechanical ball milling in stages. In the first stage, ball milling is performed, causing the oxide to break and transform in structure, and achieving nano-sizing and completely amorphization, to prepare a composite powder with a completely amorphous structure nano oxide uniformly distributed in the matrix alloy powder; and in the second stage, the composite powder obtained in the first stage and the remaining matrix alloy powder are uniformly mixed by ball milling. Then, the uniformly mixed powder is sequentially subjected to hot forming, hot rolling, and heat treatment, to obtain a nano spherical oxide dispersion strengthened alloy.

Abstract: The present disclosure discloses an Industrial Internet of Things for determining a material transportation path, a control method and a medium thereof, wherein the management platform in the Industrial Internet of Things includes: an obtaining module configured to generate a first layout directed graph; a material module configured to assign a material requirement to a corresponding material end point and assign a material supply to a corresponding material start point; a reconstruction module configured to reconstruct the first layout directed graph and form a third layout directed graph; a first calculation module configured to calculate a first path; a correction module configured to form an intermediate layout directed graph; and a second calculation module configured to calculate a second path.

Abstract: The present disclosure discloses an image encryption method based on multi-scale compressed sensing and a Markov model. According to the difference in information carried by low-frequency coefficients and high-frequency coefficients of an image, different sampling rates are set for the low-frequency coefficients and the high-frequency coefficients of the image, which can effectively improve the reconstruction quality of a decrypted image. The decrypted image obtained by the present disclosure has higher quality than the decrypted image generated by the existing scheme, and a better visual effect and more complete original image information can be obtained.

Abstract: A method for tidal lane opening management in a smart city is provided. The method applied to the management platform includes issuing a data obtaining instruction to a sensor network platform to obtain a first traffic feature of a target road within a first time period from an object platform, wherein the first traffic feature is a feature reflecting a flow situation of the target road, determining a target tidal lane opening scheme of the target road within the first time period based on the first traffic feature using a preset algorithm, generating a scheme execution instruction based on the target tidal lane opening program, sending the scheme execution instruction to the target object through, and issuing a data upload instruction to send the target tidal lane opening scheme to the user platform through a service platform.

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: This invention presents an electrochemical metallurgical technique for extracting metals and sulfur from metal sulfides, offering an adjustable composition and mechanical properties during electrode preparation. The metal sulfide anode, submerged in an electrolyte with a cathode made of materials like titanium, copper, stainless steel, lead, zinc, aluminum or graphite, undergoes electrolysis. This process oxidizes sulfur in the metal sulfide to the anode and releases metal ions into the electrolyte, where they're reduced at the cathode. The method yields metal at the cathode and sulfur at the anode, with minimal environmental impact, low investment, and straightforward process.

Abstract: A semiconductor structure includes a substrate; a first dielectric layer on the substrate; an etch stop layer on the first dielectric layer; a second dielectric layer on the etch stop layer; a first conductor and a second conductor in the second dielectric layer, an air gap in the second dielectric layer and between the first conductor and the second conductor; and a low-polarity dielectric layer on a sidewall surface of the second dielectric layer within the air gap.

Abstract: A memory device and a manufacturing method thereof are provided. The memory device includes a device substrate, a resistance variable layer and a top electrode. The bottom electrode is disposed on the device substrate. The resistance variable layer is disposed on the bottom electrode. The top electrode is disposed on the resistance variable layer. The bottom electrode is formed with a tensile stress, while the top electrode is formed with a compressive stress.

Abstract: An ultraviolet light-emitting diode includes a semiconductor layered stack, an ohmic contact layer, a metal current spreading layer, and a reflective layer. The semiconductor layered stack includes a first semiconductor layer having a first conductivity, a second semiconductor layer having a second conductivity, and an active layer disposed between the first semiconductor layer and the second semiconductor layer, and generating light by electron-hole recombination. The ohmic contact layer is formed on the second semiconductor layer, and forms an ohmic contact with the second semiconductor layer. The metal current spreading layer is formed on the ohmic contact layer, and electrically connected to the second semiconductor layer through the ohmic contact layer. The reflective layer is formed on the metal current spreading layer, and covers an exposed surface of the second semiconductor layer. A light-emitting device including the ultraviolet light-emitting diode is also provided.

Abstract: A first execution of a test script is recorded. The recording of the first execution of the test script is of a first interaction between a communication device and an Application Under Test (AUT). First request and response data for the first execution of the test script is captured. A second execution of the test script is recorded. Second request and response data for the second execution of the test script is captured. The first execution of the test script and the second execution of the test script are isolated sessions. The first request and response data is compared to the second request and response data to find one or more varying response values. The one or more varying response values are searched to identify correlations. A second test script is automatically created based on the identified correlations.

Abstract: An automatic myocardial segmentation method in two-dimensional echocardiography includes: calculating and extracting ridge information in two-dimensional echocardiography; extracting image skeleton data, and connecting fragmented skeleton data to obtain continuous skeleton data by using interpolation; screening the continuous skeleton data, and extracting two optimal paths from a top to a bottom based on a myocardial feature to obtain left and right myocardial skeletons; extracting a set of feature point candidates from the left and right myocardial skeletons, and selecting a pair of key matching feature points from the set of feature point candidates as anchor points based on the myocardial feature; entering anchor point data and left and right myocardial skeleton data in a mathematical model of heart chambers to fit the morphology of heart chambers and obtain an initial myocardial contour; and constructing a myocardial feature energy equation.

Abstract: The embodiment of the present disclosure provides a method for gas pipeline network supervision based on smart gas and an Internet of Things system, the method including: obtaining an area to be inspected; determining one or more downstream users based on the area to be inspected, obtaining gas consumption data of each of the one or more downstream users; determining, based on the gas consumption data, peak-valley features of gas consumption at a future time; determining a plurality of optional time points based on the peak-valley features of gas consumption; predicting future gas consumption features based on one or more change values of accessibility, the plurality of optional time points, and the gas consumption data through a prediction model; determining a target inspection time point based on the future gas consumption features; and generating inspection reminder instructions based on the target inspection time point.

Abstract: The invention provides a semiconductor structure, the semiconductor structure includes a substrate, a resistance random access memory on the substrate, an upper electrode, a lower electrode and a resistance conversion layer between the upper electrode and the lower electrode, and a cap layer covering the outer side of the resistance random access memory, the cap layer has an upper half and a lower half, and the upper half and the lower half contain different stresses.

Abstract: Provided is a method for introducing a point mutation to a BBD29_04920 gene coding sequence in Corynebacterium or improving the expression thereof. The point mutation causes a mutation to the base at position 1560 in the BBD29_04920 gene sequence from cytosine (C) to adenine (A) such that asparagine at position 520 of a coded corresponding amino acid sequence is substituted by lysine. The method can increase fermentation yield of glutamic acid in a strain with the mutation. Also provided are the bacterium generating L-glutamic acid, a nucleic acid and protein comprising the mutation, a recombinant vector and recombinant strain comprising the nucleic acid, and use of these biomaterials in the regulation of the production of L-glutamic acid of a microorganism.

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 invention relates to a cyclic compound library and a method for making cyclic compounds. The method includes reacting a solid-phase carrier, a molecule containing a photocleavable group, a linking molecule, a building block, and an A-end ring-closure molecule and a B-end ring-closure molecule at the two ends for synthesizing. The method also includes removing the solid-phase carrier using decomposition under light radiation and performing a ring-closure reaction using amino acid residue structures of the A-end ring-closure molecule A and the B-end ring-closure molecule B under the action of a cyclic peptide synthetase.

Abstract: The present disclosure provides an intelligent manufacturing method based on Industrial Internet of Things with a centralized service platform, including: the user platform inputting the parameter configuration information, and the service platform disassembling it into multiple sets of configuration data groups according to process; the management platform storing and processing the configuration data groups, and the configuration data group being used as a reference data group; the object platform taking the perception information as a verification data group at a set time interval; the management platform receiving and processing the verification data group, and sending the reference data group and the verification data group to the service platform; the service platform receiving and comparing the reference data group and the verification data group; if comparisons exceed the set threshold range, generating stop operation instructions and sending them to the object platform to control the production line

Abstract: The embodiment of the present disclosure provides a method for determining a smart gas inspection plan and an Internet of Things system, the method is implemented based on a smart gas pipeline network safety management platform, including: obtaining an area to be inspected; determining one or more downstream users based on the area to be inspected, and obtaining gas consumption data of each of the one or more downstream users; determining, based on the gas consumption data of the each of the one or more downstream users, peak-valley features of gas consumption at the future time; and determining, based on the peak-valley features of gas consumption at the future time, an inspection time of the area to be inspected.