Abstract: The present invention discloses an acoustic sensor for rock crack detection including an acoustic emission probe, a probe installation mechanism and a transmission mechanism which transmits a combination of the probe installation mechanism and the acoustic emission probe to a setting position inside a borehole in the monitored rock mass. The acoustic emission probe installation mechanism essentially includes a sleeve component, a guide component, an end cap and springs. The guide component is in pluggable connection with the sleeve component or the end cap. The assembled probe installation mechanism locks the acoustic emission probe in a probe sleeve of the sleeve component. The springs inside the elastic sleeve of the sleeve component are in a compressed state.

Abstract: A test system for a microseismic test of rock mass fractures provided by the present invention includes at least one microseismic sensor, a push rod provided at two ends of the microseismic sensor through a connecting mechanism for feeding the microseismic sensor into a monitoring hole , an introducing mechanism mounted on the push rod for introducing the microseismic sensor into the monitoring hole, a hydraulic system providing support hydraulic oil for the microseismic sensor, a microseismic monitoring computer connected with the signal of microseismic sensor through; the microseismic sensor includes a microseismic probe, a holding component holding the microseismic probe, a support plate and a hydraulic support mechanism; the connecting mechanism can make the push rod swing relative to the microseismic sensor, and the introducing mechanism is three-rollers introducing mechanism.

Abstract: A superconducting magnet may include magnet coils including at least one group of outer coils and at least one group of inner coils, a container including an accommodating space, at least one first chamber that is disposed within the accommodating space and houses the at least one group of the inner coils, and at least one second chamber that is disposed within the accommodating space and houses the at least one group of the outer coils. The at least one first chamber and the at least one second chamber may be configured to be filled with a cooling medium and are in fluid communication with each other. The cooling medium may be configured to cool the magnet coils to a superconducting state.

Abstract: The present disclosure relates to a system and a method. The system may include a magnetic resonance imaging (MRI) apparatus configured to acquire MRI data with respect to a region of interest (ROI) and a therapeutic apparatus configured to apply therapeutic radiation to at least one portion of the ROI. The MRI apparatus may include a plurality of main magnetic coils arranged coaxially along an axis, a plurality of shielding magnetic coils arranged coaxially along the axis, and a cryostat in which the plurality of main magnetic coils and the plurality of shielding magnetic coils are arranged.

Abstract: The present disclosure relates to the field of display technology, in particular to a display panel, a manufacturing method thereof, and a display device. The display panel includes a display substrate and an encapsulation layer for encapsulating the display substrate. The encapsulation layer includes at least one inorganic composite film layer, and each inorganic composite film layer includes an inorganic matrix and an inorganic filler. The inorganic matrix includes a plurality of grains spaced apart by gaps, and the inorganic filler is capable of enclosing each grain and being filled in a gap between every two adjacent grains.

Abstract: The invention discloses a rock damage acoustic monitoring system including an acoustic emission sensor installed in a borehole of a monitored rock mass and a ground workstation. The acoustic emission sensor is composed of an acoustic emission probe and a probe installation mechanism for installing the acoustic emission probe and a transmission mechanism for transmitting the probe installation mechanism. The probe installation mechanism includes a shell, a probe sleeve installed in the shell, an end cap fixed on the upper end surface of the probe sleeve, and a piston hydro-cylinder arranged between the top of the inner wall of the shell and the end cap. The present invention realizes the control of the moving direction of the shell and the probe sleeve by the piston hydro-cylinder component and the hydraulic pump.

Abstract: The invention discloses a monitoring system for deformations and destructions of a gas storage, including an acoustic emission sensor installed in a borehole of a monitored rock mass and a ground workstation. The acoustic emission sensor includes an acoustic emission probe and a probe installation mechanism for installing the acoustic emission probe and a transmission mechanism for transmitting the probe installation mechanism. The probe installation mechanism includes a shell, a probe sleeve and two sets of pistons hydro-cylinder components. The present invention realizes the control of the moving direction of the shell and the probe sleeve by the piston hydro-cylinder component and the hydraulic pump, thus solving the problem of effective installation and coupling of the acoustic emission probe, ensuring the effective coupling between the acoustic emission probe and the wall of the borehole.

Abstract: The present disclosure relates to a system and a method. The system may include a first device including a treatment head configured to emit a radiation beam. The system may include a second device comprising a body. The body may include one or more openings at a bottom of the recess that allow passage of the radiation beam substantially free of the interference by the body.

Abstract: A first VXLAN tunnel is established between a gateway device and an aggregation switch which corresponds to a BRAS group including several BRAS network elements. A second VXLAN tunnel is established between the gateway device and each of the BRAS network elements. In an example, when receiving a first VXLAN packet from the aggregation switch through the first VXLAN tunnel, the gateway device may acquire a first user packet by de-encapsulating the first packet and forward an encapsulated first user packet to the BRAS network element through the second VXLAN tunnel by VXLAN encapsulating the first user packet. In turn, the gateway device may receive a second VXLAN packet from the BRAS network element through the second VXLAN tunnel and forward a corresponding encapsulated second user packet to the aggregation switch through the first VXLAN tunnel.

Abstract: The present invention relates to the technical field of downhole tools of oil-gas wells, and specifically discloses a large-diameter soluble bridge plug. The large-diameter soluble bridge plug includes a fracturing ball, a cone, slips and a guide shoe. The lower end of the cone is connected with the upper end of the slips; the lower end of the slips is connected with the upper end of the guide shoe; a sealing component is arranged at a joint of the cone and the slips; and the fracturing ball is connected with the upper end of the cone in a sealing manner. A shear pin hole is formed at the upper end of the cone; and a groove is formed in an internal surface of the lower end of the guide shoe.

Abstract: The present disclosure provides a fan-out structure and a method for manufacturing the same, and a display panel, relating to the field of display technology. The fan-out structure includes a plurality of fan-out units for connecting a drive circuit to a display area, wherein each of the fan-out units includes a fan-out line, and at least one of the fan-out units further includes a resistance adjustment unit connected to a corresponding fan-out line, and the resistance adjustment unit is configured to make a resistance difference between different fan-out units smaller than a first threshold.

Abstract: A tank for substrate cleaning, a tank heating apparatus, a tank heating method and a substrate cleaning apparatus are provided. The substrate cleaning tank includes a tank body, a hot waste gas recycle tube, a heater and a heat exchange tube. The hot waste gas recycle tube is used to receive a hot waste gas in a hot waste gas discharge tube of a production line, the heater and the heat exchange tube are used to heat a fluid in the tank body, and the heat exchange tube is communicated with the hot waste gas recycle tube. The hot waste gas is effectively utilized, the power consumption is reduced, the production cost is saved, and the discharge of the hot waste gas is reduced.

Abstract: The present disclosure relates to compositions capable of absorbing UVA and UVB light. In particle, the present disclosure relates to UV screening compositions comprising at least a portion of LITE-1 polypeptides which are capable of absorbing UV light (e.g., UV-A and/or UV-B light).

Abstract: A magnetic resonance system may include a magnetic resonance magnet and a storage container configured to accommodate the magnetic resonance magnet. The storage container may also contain an endothermic liquid. The magnetic resonance system may further include a ramping-down device configured to trigger releasing electric energy by the magnetic resonance magnet. The first ramping-down device may include an electric energy consumption device configured to consume at least a portion of the released electric energy by the magnetic resonance magnet.

Abstract: A triaxial high temperature and high pressure rock mechanics load test platform includes a base, a lifting seat, and an intermediate connecting seat arranged between the base and the lifting seat. A hydraulic assembly is arranged between the base and the intermediate connecting seat; the intermediate connecting seat is connected with the lifting seat by means of a group of connecting rods; the lifting seat is enclosed by a side wall and a base plate to form a receiving groove with an upward opening; and a limiting device is arranged on the side wall of the lifting seat for preventing an MTS triaxial force sensor from disengaging from a support disk.

Abstract: The present invention discloses an acoustic emission monitoring and transmission system for engineering rock mass including an acoustic emission sensor and a ground workstation. The acoustic emission sensor is installed in a borehole of the monitored rock mass and transmits a received monitoring signal to the ground workstation through a cable. The acoustic emission sensor includes an acoustic emission probe, a probe installation mechanism and a transmission mechanism which transmits the probe installation mechanism with the acoustic emission probe to a setting position inside the borehole. The probe installation mechanism includes a shell connecting to the transmission mechanism and a probe sleeve for accommodating the acoustic emission probe.

Abstract: A rock damage mechanics test system for high temperature and high pressure deep earth environment includes an MTS triaxial test machine and a control system connected therewith. The MTS triaxial test machine is composed of a rigid frame, a high temperature and high pressure triaxial chamber, and a triaxial chamber base. The control system includes a workstation for data processing and a manual controller for controlling the workstation and a master controller. The system improves mounting and dismounting efficiency of an MTS triaxial force sensor, enhances reliability of lifting and solves the problem of aligning holes during the force sensor mounting process, thus improving the mounting efficiency.

Abstract: Some embodiments of the present disclosure relate to a displacer for reducing the consumption of a cryogen used in a superconductive magnet device. The displacer may occupy some space within the cryogen storage cavity or limit the cryogen into a relatively small space surrounding a superconductive coil in the cryogen storage cavity. The displacer may also include a displacer cavity that may be vacuum or contain a cryogen or another substance.

Abstract: An egress VTEP device of a data center receives a first packet sent by a local VTEP device of the data center, through an intra-domain VXLAN tunnel, and sends the first packet to an egress VTEP device on an opposite end of another data center through a corresponding inter-domain VXLAN tunnel. In addition, the egress VTEP device of the data center receives a second packet sent by the egress VTEP devices on an opposite end of another data center, through an inter-domain VXLAN tunnel, and sends the second packet to a local VTEP device of the data center through a corresponding intra-domain VXLAN tunnel.

Abstract: The present invention discloses a rock mechanics experiment system for simulating deep-underground environment, including a triaxial chamber consisting of a chamber cavity and a test pedestal, a stress field building module, a high pressure seepage field building module, a high temperature field building and a seepage medium permeating control measurement module arranged in the triaxial chamber, a lifting module used for installing and disassembling of the chamber cavity, and computer module used for controlling the operation of system and calculating and outputting the test data. The lifting module includes a door-shaped support frame, a cylinder piston device vertically mounted on the door-shaped support frame beam, a coupling device and a safety suspension device. The coupling device includes an oil hydraulic rod with the upper end fixedly coupled with the piston, a safety disk fixedly coupled with the lower end of the hydraulic rod, and two symmetrically disposed coupling assemblies.