Abstract: A method and a system for large-scale traffic generation based on programmable network technology, which are used for the research on network operation and maintenance and defense of attacks such as DDOS. According to the method, the required large-scale traffic is generated as required through the coordination of servers and programmable switches. The method specifically comprises the steps of designing a series of primitives which are based on intentions and are irrelevant to underlying architecture details, and reducing the description difficulty of generating large-scale traffic intentions; completing required configurations on the switch and the server by the designed cooperation mechanism of the server and programmable switch according to intentions expressed by different types of primitives, and achieving large-scale traffic generation by coordinating and utilizing server and switch resources.

Abstract: Embodiments are directed to an expandable spacer for insertion between two adjacent bony structures or two adjacent joint surfaces, and more particularly relate to an expandable spacer for insertion into the void remaining in the intervertebral space. Embodiments may include an expandable spacer comprising a first endplate; a second endplate spaced from the first endplate; and one or more bags disposed between the first endplate and the second endplate that couple the first endplate to the second endplate. The one or more bags may be configured to receive a filler material to expand the expandable spacer from an initial position having a first height to an expanded position having a second height, wherein the second height is greater than the first height.

Abstract: Disclosed are a method and apparatus for detecting traffic anomaly, a device and a medium. The method includes: performing a network topology division operation on a network topology architecture to be detected, so as to obtain a plurality of security domains; acquiring a regional full traffic in each of the plurality of security domains, determining a traffic characteristic time series on the basis of regional full traffics, and analyzing the traffic characteristic time series to obtain a new traffic characteristic time series; constructing a traffic anomaly detection model, and performing distributed anomaly detection on the traffic characteristic time series by the traffic anomaly detection model, so as to obtain a detection result; and sending the detection result to an information processing center, so that the information processing center obtains anomalous asset devices and anomalous information according to the detection result.

Abstract: A count-type quality variable prediction method based on a variational Bayesian Gaussian-Poisson mixed regression model. This method can be used for data analysis and prediction when the dependent variable is count data and the independent variables are continuous values. Its core is to use Gaussian mixed distribution and Poisson mixed regression distribution to fit the continuous data and count data respectively, assume that the two mixed distributions share the same mixed coefficient, and adopt variational inference technology for parameter learning of the model. The present disclosure overcomes the limitation that the traditional soft-sensing method cannot provide discrete probability estimation for count data, and can solve the problem that process variables and quality variable present multiple modals due to multiple working conditions in the industrial process.

Abstract: A connector, a connector assembly, a liquid cooled plate, and a liquid cooled server, where the connector includes a first connector body, a ball body, and a mesh baffle, where an annular protrusion part is provided inside the first connector body and forms an annular through-hole, and the ball body is disposed in a hollow inner cavity and is limited by the annular protrusion part and the mesh baffle; when fluid enters from a first inlet, the ball body is away from the annular through-hole to form an opened passage, and when the fluid enters from a first outlet, the ball body blocks the annular through-hole to form a closed passage. The connector assembly includes a first connector and a second connector, the first connector adopts the connector above, the second connector includes a cut elastic retaining ring for dividing the elastic retaining ring into a plurality of blades.

Abstract: A method and device for blast furnace state monitoring based on multi-modes fusion. In the process of blast furnace state monitoring, the concept of sub-mode is introduced, and the method for pre-acquisition and multi-modes weighted fusion by sub-mode is proposed to monitor blast furnace state. After preprocessing the main parameter data of the blast furnace, several sub-modes of the blast furnace and their corresponding blast furnace state indication variable data are obtained by means of a mean shift clustering algorithm. Taking the real-time parameter data of the blast furnace as inputs, the Euclidean distance between the real-time parameter data of the blast furnace and each sub-mode is calculated, and the sub-modes are weighted and fused according to the distance, and the fusion result is the real-time blast furnace state, so as to realize the real-time state monitoring of the blast furnace in a smooth operation.

Abstract: A method and device for blast furnace state monitoring based on multi-modes fusion. In the process of blast furnace state monitoring, the concept of sub-mode is introduced, and the method for pre-acquisition and multi-modes weighted fusion by sub-mode is proposed to monitor blast furnace state. After preprocessing the main parameter data of the blast furnace, several sub-modes of the blast furnace and their corresponding blast furnace state indication variable data are obtained by means of a mean shift clustering algorithm. Taking the real-time parameter data of the blast furnace as inputs, the Euclidean distance between the real-time parameter data of the blast furnace and each sub-mode is calculated, and the sub-modes are weighted and fused according to the distance, and the fusion result is the real-time blast furnace state, so as to realize the real-time state monitoring of the blast furnace in a smooth operation.

Abstract: Embodiments are directed to an expandable spacer for insertion between two adjacent bony structures or two adjacent joint surfaces, and more particularly relate to an expandable spacer for insertion into the void remaining in the intervertebral space. Embodiments may include an expandable spacer comprising a first endplate; a second endplate spaced from the first endplate; and one or more bags disposed between the first endplate and the second endplate that couple the first endplate to the second endplate. The one or more bags may be configured to receive a filler material to expand the expandable spacer from an initial position having a first height to an expanded position having a second height, wherein the second height is greater than the first height.

Abstract: The embodiments of the present application discloses an image processing method, an image processing apparatus, an image processing device and a computer-readable storage medium.

Abstract: Embodiments are directed to an expandable spacer for insertion between two adjacent bony structures or two adjacent joint surfaces, and more particularly relate to an expandable spacer for insertion into the void remaining in the intervertebral space. Embodiments may include an expandable spacer comprising a first endplate; a second endplate spaced from the first endplate; and one or more bags disposed between the first endplate and the second endplate that couple the first endplate to the second endplate. The one or more bags may be configured to receive a filler material to expand the expandable spacer from an initial position having a first height to an expanded position having a second height, wherein the second height is greater than the first height.

Abstract: The present invention discloses an edge-cloud collaborative fault detection method for a low-voltage distribution network based on a random matrix theory. An edge-cloud collaborative way is adopted, including fast fault detection running in an edge IoT agent and fault timing and locating analysis running in a distribution network control center. At an edge IoT terminal, the fault is quickly detected based on time-delay correlation analysis, a long-time series model is constructed, a time series is fitted with an autoregressive moving average model, and the fault is quickly judged based on a typical value of a limit spectral density function of the time series; after the edge IoT terminal detects the fault, fault-related data are uploaded to the distribution network control center through data screening, historical data and real-time data are integrated, and a spectral deviation index is configured to perform fault timing and locating analysis.

Abstract: Disclosed is a method for estimating a blast furnace throat temperature based on a multilayer ore-to-coke ratio distribution model. According to the method, blast furnace equipment parameters and a burden distribution matrix are utilized, the burden layer profile of each layer is calculated according to the burden distribution movement process, a burden layer distribution model is established in combination with the descending process, and the ore-to-coke ratio of each burden layer is obtained. According to the method, the ore-to-coke ratio distribution of multiple layers and main parameters of a blast furnace are used as input, a generalized regression neural network is used for estimating the temperature at the corresponding measurement position of throat temperature, so as to realize the monitoring of throat temperature in the blast furnace process.

Abstract: The present invention provides a method for predicting remaining useful life of bearings based on a gated recurrent neural network, comprising the following steps: S1. obtaining full life cycle vibration signals of bearings, extracting the vibration distribution features and creating a training set of gated recurrent neural network; S2. constructing a gated recurrent neural network model, and introducing an attention mechanism that directly calculates weights to improve the integrity of extracting temporal information; S3. adding a Bayesian layer to construct a nonlinear mapping relationship between temporal information and remaining useful life; S4. taking vibration signals of a test bearing as input, the output result of the gated recurrent neural network model is the remaining useful life of the test bearing at the current time. The present invention does not need to add additional neural network layers, which avoids the problem of increasing the complexity of the model.

Abstract: The present invention discloses a speaker vibration diaphragm. The speaker vibration diaphragm comprises: a vibration diaphragm body, and a graphene film used as a conductive layer and compounded to one side surface of the vibration diaphragm body. The present invention further discloses a method for manufacturing the speaker vibration diaphragm, and a moving-coil speaker provided with the speaker vibration diaphragm. The speaker vibration diaphragm of the present invention comprises a vibration diaphragm body and a graphene film compounded to one side surface of the vibration diaphragm body. The speaker vibration diaphragm has the advantages of good conductivity, and the like.

Abstract: Embodiments are directed to an expandable spacer for insertion between two adjacent bony structures or two adjacent joint surfaces, and more particularly relate to an expandable spacer for insertion into the void remaining in the intervertebral space. Embodiments may include an expandable spacer comprising a first endplate; a second endplate spaced from the first endplate; and one or more bags disposed between the first endplate and the second endplate that couple the first endplate to the second endplate. The one or more bags may be configured to receive a filler material to expand the expandable spacer from an initial position having a first height to an expanded position having a second height, wherein the second height is greater than the first height.

Abstract: Embodiments are directed to an expandable spacer for insertion between two adjacent bony structures or two adjacent joint surfaces, and more particularly relate to an expandable spacer for insertion into the void remaining in the intervertebral space. Embodiments may include an expandable spacer comprising a first endplate; a second endplate spaced from the first endplate; and one or more bags disposed between the first endplate and the second endplate that couple the first endplate to the second endplate. The one or more bags may be configured to receive a filler material to expand the expandable spacer from an initial position having a first height to an expanded position having a second height, wherein the second height is greater than the first height.

Abstract: The present invention discloses a speaker vibration diaphragm. The speaker vibration diaphragm comprises: a vibration diaphragm body, and a graphene film used as a conductive layer and compounded to one side surface of the vibration diaphragm body. The present invention further discloses a method for manufacturing the speaker vibration diaphragm, and a moving-coil speaker provided with the speaker vibration diaphragm. The speaker vibration diaphragm of the present invention comprises a vibration diaphragm body and a graphene film compounded to one side surface of the vibration diaphragm body. The speaker vibration diaphragm has the advantages of good conductivity, and the like.

Abstract: Embodiments are directed to an expandable spacer for insertion between two adjacent bony structures or two adjacent joint surfaces, and more particularly relate to an expandable spacer for insertion into the void remaining in the intervertebral space. Embodiments may include an expandable spacer comprising a first endplate; a second endplate spaced from the first endplate; and one or more bags disposed between the first endplate and the second endplate that couple the first endplate to the second endplate. The one or more bags may be configured to receive a filler material to expand the expandable spacer from an initial position having a first height to an expanded position having a second height, wherein the second height is greater than the first height.

Abstract: The present disclosure discloses a silica gel vibrating diaphragm and a method for fabricating the same. The method comprises: forming a composite material belt by using two layers of a base material and liquid silica gel in a calendering manner, wherein the liquid silica gel is between the two layers of the base material; wholly hot-press molding the composite material belt by a vibrating diaphragm die holder, a temperature of the hot-press molding being higher than a vulcanization temperature of the liquid silica gel; removing the two layers of the base material to obtain a whole sheet of silica gel vibrating diaphragm; and blanking the whole sheet of silica gel vibrating diaphragm that has been removed of the two layers of the base material to fabricate a required silica gel vibrating diaphragm.

Abstract: The present disclosure discloses a silica gel vibrating diaphragm and a method for fabricating the same. The method comprises: forming a composite material belt by using two layers of a base material and liquid silica gel in a calendering manner, wherein the liquid silica gel is between the two layers of the base material; wholly hot-press molding the composite material belt by a vibrating diaphragm die holder, a temperature of the hot-press molding being higher than a vulcanization temperature of the liquid silica gel; removing the two layers of the base material to obtain a whole sheet of silica gel vibrating diaphragm; and blanking the whole sheet of silica gel vibrating diaphragm that has been removed of the two layers of the base material to fabricate a required silica gel vibrating diaphragm.