Abstract: A method for managing a storage medium in a storage device is provided. The method includes detecting whether there is a problematic storage block in a data storage area of the storage medium, wherein the problematic storage block is a storage block whose health degree is less than a preset value, wherein the health degree is used to measure performance of a storage block in the storage medium and is in direct proportion to the performance of the storage block; and replacing the problematic storage block with a replacement storage block in a replacement area of the storage medium when the problematic storage block is detected, wherein a health degree of a storage block in the data storage area is greater than a health degree of a storage block in the replacement area.

Abstract: The present application discloses a single-point diamond dresser for a grinding wheel based on acoustic emission online monitoring, which includes a support module, an anti-interference module, a compression cooling module and an acoustic emission online monitoring module. An acoustic emission sensor monitors the dressing state of the grinding wheel online; a damping sheet and a damping interlayer greatly reduce external noise interference; a high pressure coolant causes an upward elastic deformation of an elastic spacer and the damping sheet, enlarging a contact force between the acoustic emission sensor and the core and moreover improving a sensitivity of the acoustic emission sensor; the coolant flows through the coolant passages in the core to cool a dressing area; current limiting passages, pressure relief cavities and perforated pressure-relief plates limit flow and reduce a pressure of the coolant, reducing the interference of the coolant on the grinding wheel dressing.

Abstract: A storage system, includes a controller and a solid state disk. The controller creates multiple segments in advance, selects a first die from the multiple dies, selects a first segment from the multiple segments, determines an available offset of the first segment, generates a write request, where the write request includes a write address, target data, and a data length of the target data, and the write address includes an identifier of a channel coupled to the first die, an identifier of the first die, an identifier of the first segment, and the available offset, and sends the write request to the solid state disk. The solid state disk receives the write request, and stores the target data according to the write address and the data length.

Abstract: The present invention provides an FPGA based data acquisition card, data acquisition system and data acquisition method. The FPGA based data acquisition card comprises: a plurality of bus control modules and a plurality of sensor acquisition modules constructed on an FPGA on the basis of a soft core, the plurality of bus control modules being used to acquire bus data of each of a plurality of bus devices, the plurality of sensor acquisition modules being used to acquire sensor data on a plurality of sensors; and a controller on the FPGA, the controller being used to send the acquired bus data and sensor data to a processing device connected to the data acquisition card.

Abstract: The present application provides a sound adsorbing material, including a microporous material and an adsorbate gas adsorbed in the microporous material. The microporous material includes a zeolite molecular sieve, and the zeolite molecular sieve has a framework and extra-framework cations. An adsorption capacity of the adsorbolite molecular sieve to the adsorbate gas is greater than an adsorption capacity of the adsorbolite molecular sieve to air. The present disclosure further provides a speaker box adopting the sound adsorbing material. Compared with the related art, the sound adsorbing material provided by the present disclosure has good application effects, and the speaker box using the sound adsorbing material has a better low frequency acoustic performance.

Abstract: A first storage node is connected to a host by using a first network interface card of the first storage node, and is connected to a second storage node by using a second network interface card. The first storage node receives a data processing request from the host, wherein the data processing request carries a target storage address of to-be-processed data, determines the second storage node based on the target storage address of the to-be-processed data, and sends the data processing request to the second storage node by using the second network interface card, wherein the data processing request instructs the second storage node to process the to-be-processed data.

Abstract: The present application discloses a single-point diamond dresser for a grinding wheel based on acoustic emission online monitoring, which includes a support module, an anti-interference module, a compression cooling module and an acoustic emission online monitoring module. An acoustic emission sensor monitors the dressing state of the grinding wheel online; a damping sheet and a damping interlayer greatly reduce external noise interference; a high pressure coolant causes an upward elastic deformation of an elastic spacer and the damping sheet, enlarging a contact force between the acoustic emission sensor and the core and moreover improving a sensitivity of the acoustic emission sensor; the coolant flows through the coolant passages in the core to cool a dressing area; current limiting passages, pressure relief cavities and perforated pressure-relief plates limit flow and reduce a pressure of the coolant, reducing the interference of the coolant on the grinding wheel dressing.

Abstract: An electromagnetic relay includes a base, a spool provided on the base, a coil wound on the spool, a yoke inserted into a hole formed in the spool, an armature movably disposed on the base, a movable contact fixed on the base, a static contact fixed on the base, a driving member connected between the armature and the movable contact, and an elastic pressing member fixed on the base. The elastic pressing member is pressed against an outer side of the armature so as to position the armature on the base and provide an auxiliary thrust to the armature.

Abstract: An electromagnetic relay includes a base, a spool provided on the base, a coil wound on the spool, a yoke inserted into a hole formed in the spool, an armature movably provided on the base, a movable contact fixed on the base, a static contact fixed on the base, and a driving member connected between the armature and the movable contact. The yoke is L-shaped. The yoke and the armature form a rectangular magnetic loop.

Abstract: The present disclosure provides a sound absorbing material. The sound absorbing material comprising MFI-structural-type molecular sieves, the MFI-structural-type molecular sieves comprises frameworks and extra-framework cations, the framework comprising SiO2 and a metal oxide MxOy containing a metal element M, wherein a molar ratio of Si/M is between 220 and 600 in the framework, the metal element M comprises aluminum, and the extra-framework cations are at least one of hydrogen ions, alkali metal ions and alkaline earth metals. The present also provides a method for preparing a sound absorbing material and a speaker box using the sound absorbing material.

Abstract: The present disclosure provides a sound absorbing material. The sound absorbing material comprises MEL-structural-type molecular sieves, the MEL-structural-type molecular sieves comprising frameworks and extra-framework cations, the frameworks comprising silica and an oxide MxOy containing an element M which is a non-silicon element; wherein a mass ratio of Si to M in the framework is at least 80, the extra-framework cations comprise at least one of hydrogen ions, alkali metal ions, alkaline earth metal ions and transition metal ions, and a content of the extra-framework cations is between 0.05 wt % and 1.5 wt %.

Abstract: The present disclosure provides a sound absorbing material. The sound absorbing material includes a sound absorbing material comprising an MFL-structural-type molecular sieve, the MFL-structural-type molecular sieve comprising a skeleton, the skeleton comprising SiO2 and Ga2O3, and the molar ratio of Si/Ga atoms in the skeleton is between 100 and 600. The invention also provides a method for preparing a sound absorbing material and a speaker box using the same. The sound absorbing material provided by the invention, the preparation method thereof and the speaker box using the sound absorbing material can further improve the performance of the speaker box, reduce the failure of the molecular sieve, and improve the performance stability of the lifting speaker box.

Abstract: The present disclosure provides an low-frequency improvement material. The low-frequency improvement material comprises a plurality of zeolite particles which comprises a plurality of zeolite grains, the zeolite grains comprises a plurality of zeolite crystallites, the zeolite crystallite comprises frameworks and extra-framework cations, the skeleton comprises SiO2 and MxOy containing element M, the average crystalline size of the zeolite crystallite ranges from 5 nm to 75 nm. The present disclosure also provides the low frequency speaker system improved materials applications. Improving material of the present disclosure provides low frequency and low frequency applications the material is improved speaker system can further improve the performance of the speaker system, the molecular sieve to reduce failure, improve performance stability Ascension speaker system.

Abstract: The present disclosure provides a sound absorbing material. The sound absorbing material comprises MFI-structural-type zeolite. The MFI-structural-type zeolite comprises a framework, and the framework comprises SiO2 and AlO3, and the mass ratio of Si to Al in the framework is less than 200 and not less than 50. The present disclosure also provides a speaker box applying the sound absorbing material. The sound absorbing material provided by the present disclosure and the speaker box using the sound absorbing material can further improve the performance of the speaker box, reduce the failure of zeolite and improve the performance stability of the speaker box.

Abstract: The present disclosure provides a sound absorbing material. The sound absorbing material comprising a heteroatom zeolite molecular sieve comprising a framework and an extra-framework cation, the framework comprising SiO2 and a metal oxide MxOy comprising a metal element M, wherein the framework has a molar ratio of Si/M between 250 to 500, wherein the M includes Fe, and that the extra-framework cation is at least one of a monovalent copper ion, a monovalent silver ion, a monovalent gold ion, an alkali metal ion or an alkaline earth metal ion. The sound absorbing material provided by the present disclosure, sound absorbing material to have better oxygen adsorption capacity, good waster repellency and stability. When such a sound absorbing material is applied to a speaker box, the speaker box will have better low frequency acoustic performance and better reliability.

Abstract: A method and an apparatus for image processing for a vehicle are provided. The method includes: acquiring an image presenting a target object; occluding at least one area of the image to obtain at least one occluded image; inputting the at least one occluded image into a pre-trained image processing model to obtain a driving parameter corresponding to each of the at least one occluded image; determining, for each driving parameter, a difference between the driving parameter and a real driving parameter corresponding to the acquired image; and determining whether the difference between the driving parameter of the occluded image occluding at least one area where the target object is located and the real driving parameter is greater than or equal to a difference threshold, to determine a degree of association between the state of the target object and the driving parameter.

Abstract: A data training method and a data training apparatus for an autonomous vehicle are provided according to embodiments of the present disclosure. The method includes: acquiring sensor data of the autonomous driving vehicle and a correction sample, the correction sample being used for representing driving behavior data of a driver when the autonomous driving vehicle encounters an interference during driving; and building an end-to-end model using the sensor data and the correction sample, the end-to-end model being configured for outputting a control instruction corresponding to a driving behavior of the driver using the sensor data and the correction sample. According to the embodiments, driving safety of the autonomous vehicle is improved.

Abstract: The present disclosure provides an autonomous driving method and an apparatus. The method includes: receiving a currently collected image transmitted by a unmanned vehicle, where the currently collected image is an image collected in a target scenario; acquiring current driving data according to the currently collected image and a pre-trained autonomous driving model, where the autonomous driving model is used to indicate a relationship between an image and driving data in at least two scenarios, and the at least two scenarios include the target scenario; and sending the current driving data to the unmanned vehicle. Robustness of the unmanned driving method is improved.

Abstract: A method for managing a storage medium in a storage device is provided. The method includes detecting whether there is a problematic storage block in a data storage area of the storage medium, wherein the problematic storage block is a storage block whose health degree is less than a preset value, wherein the health degree is used to measure performance of a storage block in the storage medium and is in direct proportion to the performance of the storage block; and replacing the problematic storage block with a replacement storage block in a replacement area of the storage medium when the problematic storage block is detected, wherein a health degree of a storage block in the data storage area is greater than a health degree of a storage block in the replacement area.

Abstract: The present disclosure relates to a molecular sieve, preparation thereof and acoustic absorption material and speaker containing the same. The molecular sieve having an MFI-structure, comprising a framework and an off-framework cation, wherein the framework comprises SiO2 and a metal oxide MxOy with M comprising boron, gallium or aluminium; the off-framework cation is at least one of hydrogen ion, alkali metal ion and alkaline earth metal ion. The molecular herein can effectively prevent the failure of the molecular sieve and improve the performance stability of the speaker.