Abstract: For the problem of difficult roof anchor withdrawal at the end of a working face, a static crushing directional anchor withdrawal method at the end of a large-mining-height working face is provided. The method includes the following steps: designing key parameters of boreholes for static crushing, including a borehole position, a spacing between boreholes, a borehole depth, and a borehole diameter at the end of a working face; then determining parameters of a static crushing agent grouting technology device for the construction of a static crushing process; and carrying out an anchor withdrawal operation at the end.

Abstract: A header box includes a first bottom plate and an unperforated cover plate. The first bottom plate includes a first surface and a second surface opposite to the first surface. The first bottom plate is of a one-piece configuration. The first surface is recessed inwardly to form a straight first hole extending along a length direction. The second surface is recessed inwardly to form at least two straight second holes extending along a width direction perpendicular to the length direction. The first hole is communicated with the at least two second holes. The cover plate is connected to the first surface to block an opening of the first hole on the first surface. A heat exchanger having the header box is also disclosed.

Abstract: A heat exchanger includes a first collecting pipe, a second collecting pipe and a number of flat tubes connected between the first collecting pipe and the second collecting pipe. The first collecting pipe includes a first upper main board and a first lower main board. A first channel and a second channel are formed between the first upper main board and the first lower main board. The second collecting pipe includes a third channel and a fourth channel. The third channel is communicated with the first channel through a row of the flat tubes. The fourth channel is communicated with the second channel through another row of the flat tubes.

Abstract: The application provides a method for monitoring resource state in a communication network that includes a plurality of nodes. A node in the communication network determines whether a label switching path connection, which connects the node with an adjacent node, is established successfully. Based on a determination that the label switching path connection is not established successfully, the node determines whether a data plane resource state of the node and a control plane resource state of the node are consistent. Based on a determination that the data plane resource state of the node and the control plane resource state of the node are inconsistent, the node reports the inconsistency to a management plane of the node.

Abstract: The present disclosure discloses a header box and a heat exchanger. The header box includes a cover plate and a bottom plate. The cover plate is provided with a groove extending along a length direction of the cover plate. The groove includes an opening portion. The bottom plate is provided with a number of openings for inserting flat tubes. The opening extends through an upper surface and a lower surface of the bottom plate. The opening includes a first opening close to the cover plate and a second opening away from the cover plate. A cross-sectional area of the first opening is larger than a cross-sectional area of the second opening. The opening portion of the groove is provided toward the bottom plate. As a result, high pressure resistant performance of the header box and the heat exchanger can be achieved.

Abstract: A heat exchanger includes a first collecting pipe, a second collecting pipe and a number of flat tubes connected between the first collecting pipe and the second collecting pipe. The first collecting pipe includes a first upper main board and a first lower main board. A first channel and a second channel are formed between the first upper main board and the first lower main board. The second collecting pipe includes a third channel and a fourth channel. The third channel is communicated with the first channel through a row of the flat tubes. The fourth channel is communicated with the second channel through another row of the flat tubes.

Abstract: A heat exchanger can include a plurality of flat tubes each having a heat exchange channel for a flow of a heat exchange medium, and a first collector pipe and a second collector pipe connected to distal sections of the plurality of flat tubes and disposed side by side. Chambers of the first collector pipe and the second collector pipe can be in communication with the heat exchange channels of the flat tubes. The flat tube includes a main body section, a distal section, and a torsion section connected therebetween. The main body section and the distal sections can be straight sections. The first collector pipe and the second collector pipe can be provided with mounting holes for the distal section being inserted into. A length direction of the mounting hole can be inclined to the axis of the first collector pipe or the axis of the second collector pipe.

Abstract: A monitoring system for vacuum production line for laminated glass. In some examples, the system includes at least one data acquisition card, a towline, a controller, and a maintenance robot. A pressure detector and a valve are provided for each of the plurality of laminated glass units on the production line. The towline includes a composite rotary joint and an evacuation tube disposed therein. The controller receives data from the pressure detectors and determines if any of the laminated glass units has a leak condition. If a vacuum leak is detected, the controller can alert to the operator, and can also sends the maintenance robot to shut off the valve for the leaking laminated glass unit.

Abstract: The application provides a method for monitoring resource state in a communication network that includes a plurality of nodes. A node in the communication network determines whether a label switching path connection, which connects the node with an adjacent node, is established successfully. Based on a determination that the label switching path connection is not established successfully, the node determines whether a data plane resource state of the node and a control plane resource state of the node are consistent. Based on a determination that the data plane resource state of the node and the control plane resource state of the node are inconsistent, the node reports the inconsistency to a management plane of the node.

Abstract: A resource state monitoring method, device and communication network are provided. The method includes: acquiring network event state information of a node in a network running process, detecting a data plane resource state of the node and a control plane resource state of the node when it determines that the network event state information of the node meets a resource state detection triggering condition, and reporting a detection result to a management plane of the node. The device includes an acquiring unit, a checking unit, a triggering unit, a detecting unit and a reporting unit. The network includes several nodes, a communication control device and a resource state monitoring device.

Abstract: A bent heat exchanger includes a first manifold, a second manifold, and a plurality of flat tubes each being configured to communicate the first manifold with the second manifold, and fins between the flat tubes; wherein the flat tube includes a first straight section, a second straight section and a bent section connecting the first straight section with the second straight section. The bent section includes the first twisted section connected to the first straight section, the second twisted section connected to the second straight section, and the connecting section connecting the first twisted section with the second twisted section, and the connecting section of the flat tube has a substantially flat shape or a flat arc shape. In this way, the height of the bent heat exchanger can be reduced, which facilitates the installation and improves the heat exchange performance of the heat exchanger.

Abstract: A monitoring system for vacuum production line for laminated glass. In some examples, the system includes at least one data acquisition card, a towline, a controller, and a maintenance robot. A pressure detector and a valve are provided for each of the plurality of laminated glass units on the production line. The towline includes a composite rotary joint and an evacuation tube disposed therein. The controller receives data from the pressure detectors and determines if any of the laminated glass units has a leak condition. If a vacuum leak is detected, the controller can alert to the operator, and can also sends the maintenance robot to shut off the valve for the leaking laminated glass unit.

Abstract: Compositions and methods for increasing plant growth and yield are provided. Compositions comprise the high yield gene TEL, promoters and enhancers to increase the expression of a TEL gene in a plant of interest. By enhancing the expression of at least one TEL gene in a plant, an improvement in plant growth and yield is achieved, resulting in an increase in crop yield in a field planted with such plants. A plant of interest may be transformed with a DNA construct comprising a promoter that is capable of driving expression in the plant operably linked to a coding sequence for a TEL gene. The DNA construct may comprise at least on enhancer that acts to increase expression of the TEL coding sequence. A promoter or enhancer can be inserted into the genome of the plant of interest at a site that increases the expression of the endogenous TEL coding sequence in the plant.

Abstract: Compositions and methods for increasing plant growth and yield are provided. Compositions comprise the high yield gene TEL, promoters and enhancers to increase the expression of a TEL gene in a plant of interest. By enhancing the expression of at least one TEL gene in a plant, an improvement in plant growth and yield is achieved, resulting in an increase in crop yield in a field planted with such plants. A plant of interest may be transformed with a DNA construct comprising a promoter that is capable of driving expression in the plant operably linked to a coding sequence for a TEL gene. The DNA construct may comprise at least on enhancer that acts to increase expression of the TEL coding sequence. A promoter or enhancer can be inserted into the genome of the plant of interest at a site that increases the expression of the endogenous TEL coding sequence in the plant.

Abstract: A bent heat exchanger includes a first manifold, a second manifold, and a plurality of flat tubes each being configured to communicate the first manifold with the second manifold, and fins between the flat tubes; wherein the flat tube includes a first straight section, a second straight section and a bent section connecting the first straight section with the second straight section. The bent section includes the first twisted section connected to the first straight section, the second twisted section connected to the second straight section, and the connecting section connecting the first twisted section with the second twisted section, and the connecting section of the flat tube has a substantially flat shape or a flat arc shape. In this way, the height of the bent heat exchanger can be reduced, which facilitates the installation and improves the heat exchange performance of the heat exchanger.

Abstract: A resource state monitoring method, device and communication network are provided. The method includes: acquiring network event state information of a node in a network running process, detecting a data plane resource state of the node and a control plane resource state of the node when it determines that the network event state information of the node meets a resource state detection triggering condition, and reporting a detection result to a management plane of the node. The device includes an acquiring unit, a checking unit, a triggering unit, a detecting unit and a reporting unit. The network includes several nodes, a communication control device and a resource state monitoring device.

Abstract: A method for acquiring an optical fiber connection relation includes: acquiring, by a first unit, first port identification information of a optical fiber, where the first port identification information of the optical fiber is pre-stored in a first storage unit; correlating port identification information of the first unit that is connected to the first storage unit with the first port identification information; acquiring, by a second unit, second port identification information of the optical fiber, where the second port identification information of the optical fiber is pre-stored in a second storage unit; correlating port identification information of the second unit that is connected to the second storage unit with the second port identification information; acquiring, by a management control unit, correlation information; and determining an optical fiber connection relation between the first unit and the second unit.

Abstract: A method for configuring operation, administration and maintenance (OAM) properties, a system for configuring OAM properties, and a node device are provided. The method includes: delivering a message carrying OAM property configuration indicating information; and flowing through a plurality of nodes to be configured in the process of delivering the message, and configuring, by each of the nodes to be configured, an OAM property of the present node according to the OAM property configuration indicating information in the message flowing through the present node.

Abstract: A method for distributing node information, including an optical node generating an information bit stream based on its own node information and distributing the information bit stream it generates and a wavelength sequence corresponding to the node information. According to various embodiments, an information bit stream is generated based on the node information of an optical node so as to reduce the volume of data in the node information distributed by an optical node.

Abstract: A resource state monitoring method, device and communication network are provided. The method includes: acquiring network event state information of a node in a network running process, detecting a data plane resource state of the node and a control plane resource state of the node when it determines that the network event state information of the node meets a resource state detection triggering condition, and reporting a detection result to a management plane of the node. The device includes an acquiring unit, a checking unit, a triggering unit, a detecting unit and a reporting unit. The network includes several nodes, a communication control device and a resource state monitoring device.