Abstract: A system for monitoring rock damage in deep engineering environment includes an acoustic emission sensor assembly and an acoustic emission amplifier assembly. The assemblies are mounted on a rock mechanics test system. The acoustic emission sensor clamp includes a coupling screw, as well as a clamp cover, a clamp cylinder, and a coupling panel threadedly connected in sequence. The acoustic emission amplifier assembly includes an acoustic emission amplifier, an upright column having a guide rail, a lifting support plate, and a support plate lifting oil cylinder. Additionally, an evaluation method based on acoustic emission tempo-spatial evolution laws is presented. According to the properties of acoustic emission, fractal characteristics of damage evolution processes of rock test pieces are analyzed and the relationship between stress, energy and fractal dimension in the whole process of tensile deformation damage of the rock test pieces is obtained.

Abstract: A loading platform for a rock mechanics test system (MTS) to realize simple and reliable connection between a high temperature and high pressure force sensor in a triaxial chamber cavity and an upper solid rigid column. The loading platform for rock mechanics test includes a master rod, a secondary rod and a stop sleeve sleeved on the master rod; the stop sleeve is provided with two corbel structures; the secondary rod is composed of a secondary rod head body and a secondary rod body; a circular magnetic block is fixed on the secondary rod to adsorb a hole alignment sleeve sleeved on the secondary rod; and the hole alignment sleeve marked with a first scale line and a second scale line.

Abstract: There is provided a touch panel, including: a substrate including a touch detection area and a fingerprint recognition area; plural touch detection units in the touch detection area, each touch detection unit including a touch detection electrode; plural fingerprint recognition units in the fingerprint recognition area, each fingerprint recognition unit including a fingerprint recognition electrode, and the fingerprint recognition electrode and the touch detection electrode being in a same layer; a signal wiring layer on a same side of the substrate as the touch detection electrode and the fingerprint recognition electrode and including plural first signal transmission lines and plural second signal transmission lines.

Abstract: The utility invention provides a one-way locking method using an anti-loosing strapping device for securing cargo and goods for storage and transport. It rotates a clutch cam with an operating handle and the clutch cam. The utility invention utilizes an anti-loosing strapping device, when used, the operating handle allows the free rotation of the ratchet allows the buckle to be pulled away from the ratchet to clutch cam, and the strap can be pulled out under the effect of an external force. Once the force is loosened the strap will tighten up automatically and rotate into the position where the buckle is locked by the ratchet to clutch cam. The locking method of this kind of ratchet is one-way locking, the strap can only tighten up and cannot be pulled out. Through the improvement to the structure, the combination of the strap and the ratchet mechanisms with ability to separate simultaneously, improves reliability and stability of the anti-loosing strapping device.

Abstract: The present invention describes a mechanical coupling microseismic monitoring system, which includes at least one microseismic sensor, push rods that are arranged at both ends of the microseismic sensor through a first connection mechanism to send the microseismic sensor into the monitoring hole, introduction mechanisms that are mounted on the push rods for introducing the microseismic sensor into the monitoring hole, and one microseismic monitoring computer that receives signals from the microseismic sensor; the microseismic sensor is a recoverable microseismic sensor; the first connection mechanism is a connection mechanism that can make the push rod swing relative to the microseismic sensor; the introduction mechanism is a three-roller introduction mechanism. The present invention meets the requirement of microseismic monitoring for different parts of deep monitoring hole using multiple microseismic sensors.

Abstract: A system may comprise a magnetic resonance imaging (MRI) device including a bore that is configured to accommodate a subject. The MRI device may include multiple superconducting magnets configured to generate a magnetic field in the bore. The MRI device may include one or more superconducting connections each of which is configured to connect at least two of the multiple superconducting magnets. The system may further include a radiation source configured to emit a radiation beam toward the bore. The radiation source may be able to rotate in a plane perpendicular to a direction of the magnetic field in the bore. The MRI device may further include one or more protection components configured to prevent at least a portion of the radiation beam from irradiating the one or more superconducting connections.

Abstract: The present disclosure relates to systems and methods for magnetic resonance imaging (MRI). The systems may include a gradient coil assembly configured to form a gradient magnetic field. The systems may also include a cryostat including a superconducting coil assembly and a magnetic field shielding apparatus arranged on/in a component of the cryostat. The superconducting coil assembly may be configured to form a main magnetic field. The magnetic field shielding apparatus may be configured to shield the superconducting coil assembly from a stray field of the gradient coil assembly. The magnetic field shielding apparatus may include a conductive shielding component, a shielding cylinder, or a combination thereof.

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 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: 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: 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: 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 embodiments of the present disclosure disclose a shift register unit and a method for driving the same, a gate driving circuit, and a display apparatus. The shift register unit includes: an input circuit configured to output an input signal from an input signal terminal to a pull-up node; an output circuit configured to output a clock signal from a clock signal terminal to an output signal terminal under control of a potential at the pull-up node; a resetting and de-noising circuit configured to reset and de-noise the pull-up node and the output signal terminal under control of a potential at a pull-down node; and a pull-down node control circuit coupled to a first voltage terminal and the pull-down node, and configured to electrically couple the pull-down node to the first voltage terminal under control of the potential at the pull-down node.

Abstract: The disclosure relates to a hard-sealing soluble bridge plug, comprising a body made of soluble metal. The body comprises a wedge, a slip and a guide shoe which are connected from top to bottom in turn; at least one metal sealing ring is sleeved at the junction of the outer circumference of the wedge and the slip, and the metal sealing ring is made of soluble metal. The hard-sealing soluble bridge plug provided by the disclosure is applied to the field of fracturing and stimulation operation of an oil and gas well so that the hard-sealing soluble bridge plug is more convenient to store, more stable to seal and more firm to anchor, the setting success rate of the hard-sealing soluble bridge plug is effectively improved to better adapt to down hole environments. Furthermore, due to simple and compact structure, the hard-sealing soluble bridge plug is easy to machine and manufacture, and is effectively reduced in the cost of the soluble bridge plug.

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: A bearing system for rock mechanics test under high temperature and high pressure multi-field coupling includes a force sensor lifting seat and a jack. The force sensor lifting seat includes a connecting disk connected with the jack, a support disk, and an operation channel. A groove dented downwards is arranged on the connecting disk, the support disk is disposed in the groove and freely propped upon the connecting disk; through holes of the connecting disk and the support disk form a control operation channel; and a limiting device is arranged for preventing an MTS triaxial force sensor from disengaging from the support disk. A bolt hole of the force sensor can be aligned with a mounting hole on a solid steel column by rotating the connecting disk for convenient and accurate bolting.

Abstract: The present invention discloses a microseismic monitoring system, which includes at least a microseismic sensor, a push rod set at both ends of the microseismic sensor through the first connecting mechanism for sending the microseismic sensor into a monitoring hole, a guide mechanism installed on the push rod for guiding the microseismic sensor into the monitoring hole, and a microseismic monitoring computer connecting with the microseismic sensor signal. The microseismic sensor is reusable. The first connecting mechanism can make the push rod swing relative to the microseismic sensor. The guide mechanism is a three-roller guide mechanism. The present invention can satisfy the need of monitoring different locations in monitoring holes with large depths for multiple microseismic sensors, and solve problems of effective contact coupling between the microseismic sensors and monitoring holes, which improves the accuracy of microseismic monitoring and reduces the cost of a microseismic monitoring system.

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.