Abstract: The present invention disclosures a magnesium@high-sulfur coke hydrogen storage material and a preparation method thereof. The method comprises: ball milling magnesium powder with high-sulfur coke in an inert atmosphere to obtain a mixture; subjecting the mixture to pressing to form a pressed tablet, followed by melt infiltration in an inert atmosphere to obtain an infiltrated product and a magnesium vapor; and subjecting the infiltrated product to adsorption and condensation of the magnesium vapor to obtain the magnesium@high-sulfur coke hydrogen storage material. The prepared magnesium@high-sulfur coke has low plateau temperature, high hydrogen storage capacity, fast hydrogen absorption/desorption rate, and other advantages.

Abstract: Filter modules having a wider passband are provided herein. In certain embodiments, the filter module comprises an input node; an output node; a filter disposed along a signal path extending from the input node to the output node; a strip line configured to generate an inductance between the filter and a ground such to increase a bandwidth of a passband of the filter module, the single strip line disposed on multiple layers, each of the multiple layers defined by a plurality of pulse-shaped) portions of the strip line disposed on a plane.

Abstract: Filter modules having a wider passband are provided herein. In certain embodiments, the filter module comprises an input node; an output node; a filter disposed along a signal path extending from the input node to the output node; a strip line configured to generate an inductance between the filter and a ground such to increase a bandwidth of a passband of the filter module, the single strip line disposed on multiple layers, each of the multiple layers defined by a plurality of pulse-shaped) portions of the strip line disposed on a plane.

Abstract: The present disclosure relates to a microfluidic chip and a microfluidic chip detection system. The microfluidic chip including: a storage member provided with a groove therein, at least two storage chambers being disposed around the groove; a base disposed at one end of the storage member away from the groove, a reaction chamber being disposed on the base; and a valve disposed in the groove, the valve being configured to operatively communicate any one of the at least two storage chambers with the reaction chamber. The present disclosure can lead the solution in any storage chamber to the reaction chamber or lead the solution in the reaction chamber to any storage chamber by operating the valve, so that the solution transfer is realized, the structure is simple and compact, the length of the flow channels can be greatly shortened, and the detection efficiency is improved.

Abstract: Embodiments of this application provide a bulk acoustic resonator, an acoustic filter, and an electronic device, to improve performance of the acoustic filter. The bulk acoustic resonator includes a piezoelectric material layer, an interdigital transducer, and a dielectric layer. The interdigital transducer is disposed on the piezoelectric material layer. The interdigital transducer includes a first busbar and a second busbar that are disposed opposite to each other, a plurality of first electrodes, and a plurality of second electrodes. The plurality of first electrodes sequentially protrude from the first busbar to the second busbar along an extension direction of the first busbar. The plurality of second electrodes sequentially protrude from the second busbar to the first busbar along an extension direction of the second busbar. The plurality of first electrodes and the plurality of second electrodes are sequentially arranged in a staggered manner between the first busbar and the second busbar.

Abstract: An acoustic filter includes a first resonator, a second resonator, and a first acoustic wave suppression structure. The first resonator and the second resonator are arranged in a first direction. The first acoustic wave suppression structure is disposed between the first resonator and the second resonator, and at least one stopband generated by the first acoustic wave suppression structure is used to reduce an acoustic wave that is leaked between the first resonator and the second resonator and that is propagated in the first direction.

Abstract: A bulk acoustic wave resonator comprises a piezoelectric material layer, a first comb-shaped electrode, a second comb-shaped electrode, and at least one grid structure. The first comb-shaped electrode is disposed on the piezoelectric material layer, and the first comb-shaped electrode includes a first busbar and a plurality of first electrode fingers sequentially arranged along an extension direction of the first busbar. The second comb-shaped electrode is disposed on the piezoelectric material layer, and the second comb-shaped electrode includes a second busbar and a plurality of second electrode fingers sequentially arranged along an extension direction of the second busbar. The plurality of first electrode fingers and the plurality of second electrode fingers are arranged at spacings and do not contact each other. The grid structure is disposed at least between the first electrode finger and the second electrode finger.

Abstract: A monitoring system for a pipeline system, may comprise: thickness sensors, vibration sensors, flow sensors, leak sensors and/or other sensors disposed on pipelines, controller processors coupled to the sensors to receive and geo-tag sensor data, communication devices for transmitting geo-tagged data, and a central facility comprising: a communication device receiving the geo-tagged data and servers to analyze the data from the sensors to determine, e.g., wall thickness, vibration producing events, media flow, and/or leaks, and to compare same to standardized exception data therefor; wherein when an exception exists, to generate and communicate an alert therefrom via a display, a human interface device and/or the communication device of the central facility.

Abstract: This application provides a phase correction method and a communication apparatus. In the phase correction method, a network device sends a combined signal to a terminal, where the combined signal is obtained by passing a first signal through N channels and combining output signals of the N channels. The terminal determines a precoding matrix based on the combined signal and feeds back the precoding matrix to the network device. The network device estimates a phase error between a plurality of channels of the network device based on the precoding matrix, and corrects phases of the N channels based on the obtained phase error. In the foregoing technical solution, soft correction of phases of N channels of the network device may be implemented by using an air interface feedback of a terminal, so that it can be ensured that the phases of the N channels are consistent.

Abstract: Filter modules having a wider passband are provided herein. In certain embodiments, the filter module comprises an input node; an output node; a filter disposed along a signal path extending from the input node to the output node; a strip line configured to generate an inductance between the filter and a ground such to increase a bandwidth of a passband of the filter module, the single strip line disposed on multiple layers, each of the multiple layers defined by a plurality of pulse-shaped) portions of the strip line disposed on a plane.

Abstract: Embodiments of the invention relate to a surface acoustic wave device including a piezoelectric substrate, an interdigital transducer electrode on the piezoelectric substrate and a first thermally conductive layer arranged over the piezoelectric substrate and interdigital transducer electrode. The first thermally conductive layer is spaced apart from the piezoelectric substrate and interdigital transducer electrode. The surface acoustic wave device also includes a second thermally conductive layer configured to dissipate heat generated by the surface acoustic wave device. The second thermally conductive layer is arranged on an opposing side of the piezoelectric substrate to the interdigital transducer electrode. Related wafer-level packages, radio frequency modules and wireless communication devices are also provided.

Abstract: A system and method for monitoring a track and/or rail employs one or more distance measuring imagers mounted to a railcar and directed to image the track and/or rails wherein the images are geo-tagged with location data. Geo-tagged distance measurements are processed to determine at least track gauge and/or at least rail fastener integrity. The system and method may also determine other track and/or rail integrity issues including, e.g., rail profile, rail alignment, center point dip, cross level, rail cant, wheel wear, wheel integrity, rail wear, rail defects, and/or rail temperature. The system and method may also determine when inspection and/or maintenance of the track is indicated, and provide selected records of where and/or when such inspection and/or maintenance is indicated.

Abstract: A system and method for detecting and measuring rail and/or track defects may comprise: an array of time-of-flight distance measuring sensors measuring distance to the rail head; wherein the distance measuring sensors are synchronized and the dimensional data therefrom is geo-tagged. A memory stores geo-tagged distance measurement data. Distance measurement data is processed to determine the dimensional data of the rail head including at least the width and the height thereof, for detecting rail wear and rail defects. Rail wear, surface defects, rail structural defects, rail fractures and cracks, and/or a gap in a rail, can be measured and detected.

Abstract: A system and method for monitoring a track and/or rail employs one or more distance measuring imagers mounted to a railcar and directed to image the track and/or rails wherein the images are geo-tagged with location data. Geo-tagged distance measurements are processed to determine at least track gauge and/or at least rail fastener integrity. The system and method may also determine other track and/or rail integrity issues including, e.g., rail profile, rail alignment, center point dip, cross level, rail cant, wheel wear, wheel integrity, rail wear, rail defects, and/or rail temperature. The system and method may also determine when inspection and/or maintenance of the track is indicated, and provide selected records of where and/or when such inspection and/or maintenance is indicated.

Abstract: A system and method for monitoring a track and/or rail employs one or more imagers mounted to a railcar and directed to image the track and/or rails wherein the images are geo-tagged with location data. Geo-tagged images are processed to determine at least track gauge and/or at least rail fastener integrity. The system and method may also determine other track and/or rail integrity issues including, e.g., rail fastener integrity, rail profile, rail alignment, center point dip, cross level, rail cant, wheel wear, wheel integrity, rail wear, rail defects, and/or rail temperature. The system and method may also determine when inspection and/or maintenance of the track is indicated, and provide selected records of where and/or when such inspection and/or maintenance is indicated.

Abstract: A system and method for conducting a tokenized electronic transaction may comprise: receiving identifying biometric data for the user, generating a biometric template representative thereof, and destroying the identifying biometric data. The identifying biometric data is not stored permanently, is not transmitted, cannot be derived from the biometric template, and is destroyed so that only the biometric template remains. The biometric template is attached to a transaction token for completing the transaction represented by the token including: comparing the token and attached biometric template with reference transaction data and with a reference biometric template. When the token matches the reference transaction data and the biometric template matches the reference biometric template, then the transaction is authorized and completed, and when the token and/or the biometric template does not match the reference therefor, then the transaction is rejected.

Abstract: A cross-platform game battle method and apparatus, a terminal, and a system are provided. The method includes sending a first request to a game server in response to a first operation, with respect to a game, on a first web page. A first response is received in response to the first request, and a game address is obtained according to the first response. The game address is sent to a second terminal, the game address being usable by the second terminal to obtain a second web page to start the game. The second terminal is on a platform that is different from a platform of the first web page.