Abstract: A method and circuit for performing multi-layer vector-matrix multiplication operations may include, at a first multiplier-accumulator (MAC) layer, converting a digital input vector using one-bit digital to analog converters (DACs); sequentially performing vector-matrix multiplication operations for the analog DAC signals; and sequentially performing an analog-to-digital (ADC) operation on outputs of the vector-matrix multiplication operations to generate binary partial output vectors. At a second MAC layer, the method and circuit may sequentially receive the binary partial output vectors from the first MAC layer at multi-bit DACs; and sequentially perform vector-matrix multiplication operations to generate a summed binary output for the second MAC layer.

Abstract: A tunneling and anchoring machine (100) and a tunneling system, the tunneling and anchoring machine (100) comprising a rack (1), a cutting device (2), a drilling device (3) and a control device; the cutting device (2) has a lowest swing angle (B) and a highest swing angle (a); the drilling device (3) comprises a drilling machine (31) and a sensor, the sensor is electrically connected to the drilling machine (31), the drilling machine (31) is suitable for drilling a roadway floor and/or a roadway roof, and the sensor is suitable for, when the drilling machine (31) is drilling, monitoring a set parameter of the drilling machine (31) and generating a monitoring data signal; the sensor is electrically connected to the control device, and the control device is suitable for receiving and analyzing the monitoring data signal; when the drilling machine (31) drills a first thickness of the roadway floor, if the monitoring data signal is greater than a first threshold, the control device is suitable for adjusting the l

Abstract: A bolter miner includes a rack, a cutting device and a bolt support device. The cutting device is configured for a cutting operation and is arranged on the rack to swing up and down. The bolt support device includes a lifting assembly, a work platform, a first drilling frame assembly and a stabilization assembly. The lifting assembly is arranged between the rack and the work platform and is configured to lift the work platform. The first drilling frame assembly and the stabilization assembly are arranged on the work platform. The first drilling frame assembly has a bolt support position and an avoidance position. The work platform can extend and retract to switch the bolt support position and the avoidance position of the first drilling frame assembly. The stabilization assembly can be supported between the cutting device and a tunnel roof, so as to enhance the stability of the first drilling frame assembly during a bolt support operation.

Abstract: The present disclosure is related to a microwave source. The microwave source may include a cathode heater and a thermionic emitter. The cathode heater may include a first component, and a second component enclosing at least a portion of the first component. The thermionic emitter may be configured to release electrons when the thermionic emitter is heated by the cathode heater. At least a portion of the second component of the cathode heater may be in contact with the thermionic emitter.

Abstract: The present disclosure relates to dielectric duplexers. One example dielectric duplexer includes a dielectric body, where an input/output structure, a tap, a first resonance structure, and a second resonance structure are provided on surfaces of the dielectric body. The tap and the input/output structure are provided on different surfaces of the dielectric body. The tap and the input/output structure are located between the first resonance structure and the second resonance structure. A first resonator consists of the first resonance structure and the dielectric body around the first resonance structure, and a second resonator consists of the second resonance structure and the dielectric body around the second resonance structure. A conducting layer covers a surface of the input/output structure, the tap, the first resonance structure, and the second resonance structure, and the conducting layer covers the surface of the dielectric body except a region around the input/output structure.

Abstract: An information handling system may include at least one processor and a memory. The information handling system may be configured to receive a request to upgrade a component from a first version to a second version; perform a first check by determining if allowed source release (ASR) information of the second version includes a reference to the first version; perform a second check by determining if allowed target release (ATR) information of the first version includes a reference to the second version; and in response to either of the first check and the second check being successful, perform the component upgrade.

Abstract: A display panel includes a display region and a photoelectric sensing region which includes a light transmitting region and a frame region surrounding the light transmitting region; the frame region includes a first region surrounding the light transmitting region, a second region on a side of the first region away from the light transmitting region and surrounding the first region, and a third region between the second region and the display region. The spacers are in an array and in the display region but not in the light transmitting region. A plurality of first support pillars are in the first region, arranged around the light transmitting region, and spaced from each other. A plurality of second support pillars are in the second region, around the second region, and spaced from each other. A plurality of third support pillars are in the third region in an array.

Abstract: The invention relates to highly luminescent nanostructures with improved blue light absorbance, particularly core/shell nanostructures comprising a ZnSe core and InP and/or ZnS shell layers. The invention also relates to methods of producing such nanostructures.

Abstract: A time synchronization method includes obtaining a first BLUETOOTH packet from a master device, where the first BLUETOOTH packet carries first time stamp information, and the first time stamp information indicates a sending moment t1 that is of the first BLUETOOTH packet and that is determined based on a clock of the master device; and correcting a local time of a slave device based on the first time stamp information.

Abstract: A method and system for adjusting height and damping force, the method comprising: between a first connection part (110) and a second connection part (120), arranging a pneumatic valve (130), an air spring (140), an adjustable damper (150) and a damping force adjustment device (160) used for adjusting the damping force of an adjustable damper (150), the positions of the pneumatic valve (130), the air spring (140), the adjustable damper (150) and the damping force adjustment device (160) being adaptive and the pneumatic valve (130) being connected to the damping force adjustment device (160) and the air spring (140), respectively; the pneumatic valve (130) collects at least one movement variable of the first connection part (110) relative to the second connection part (120); meanwhile, the pneumatic valve (130), according to the collected movement variable and/or the change in the movement variable, controlling the air spring (140) to inflate or deflate so as to implement height adjustment; and/or carrying out

Abstract: A method for performing vector-matrix multiplication may include converting a digital input vector comprising a plurality of binary-encoded values into a plurality of analog signals using a plurality of one-bit digital to analog converters (DACs); sequentially performing, using an analog vector matrix multiplier and based on bit-order, vector-matrix multiplication operations using a weighting matrix for the plurality of analog signals to generate analog outputs of the analog vector matrix multiplier; sequentially performing an analog-to-digital (ADC) operation on the analog outputs of the analog vector matrix multiplier to generate binary partial output vectors; and combining the binary partial output vectors to generate a result of the vector-matrix multiplication.

Abstract: A dielectric filter, a duplexer, and a communications device are provided. The dielectric filter includes a dielectric body, and a wideband filtering structure and a narrowband filtering structure that are disposed in the dielectric body. The wideband filtering structure includes a groove disposed on a first surface of the dielectric body and configured to adjust a frequency position of a passband of the wideband filtering structure; and at least one first resonator including a through hole penetrating the bottom of the groove and a second surface of the dielectric body; and an open loop located on a bottom surface of the groove and is disposed around an opening of the through hole. The narrowband filtering structure includes at least one second resonator including a blind hole disposed on the second surface of the dielectric body. The first surface and the second surface of the dielectric body are disposed oppositely.

Abstract: The present invention discloses a cylindrical waterproof battery box, including a box body, a compartment body, and a box cover. One end of the box body is provided with a mounting opening, the compartment body is configured to be mounted into the mounting opening and extend to an inner cavity of the box body, the box cover and the compartment body are assembled to form an external thread assembly portion, an internal thread portion is disposed in the mounting opening, and the external thread assembly portion is configured to be fitted with the internal thread portion.

Abstract: The present invention relates to the field of forming technologies for rubber sealing ring blanks, and more particularly to an automatic forming method and device for a rubber sealing ring blank. A cutting blade is fixedly connected to the surface of a blank forming assembly; an equipment body II is fixedly connected to a sliding table die set; a supporting rod II is fixedly connected to the surface of the equipment body II; a blank box is fixedly connected to the inner side surface of the supporting rod II; and a blank spool is fixedly connected to the tail end of a long blank strip. The method and device disclosed by the present invention have the advantages that the automation degree is high, and the long blank strip conveyed from the blank spool passes through guide wheels and a guide groove and is automatically pressed into a ring through the combined action of the blank forming assembly and the cutting blade.

Abstract: A display panel includes a second substrate. The second substrate includes a second base substrate and a shielding layer, an array structure layer, an insulating layer and a reflective layer which are sequentially disposed on a second base substrate, the array structure layer includes gate lines; the shielding layer includes a plurality of groups of light shielding units sequentially arranged along a first direction, each group of the light shielding units includes a plurality of independent sub-light shielding units sequentially arranged along a second direction, the reflective layer includes a plurality of reflective units arranged in an array, the plurality of reflective units form a plurality of reflective rows and a plurality of reflective columns, a first space area is formed between adjacent reflective columns, and a second space area is formed between adjacent reflective rows forms.

Abstract: A method and circuit for performing vector operations may include, for each sequentially performed operation, operating a switch that corresponds to a current bit-order. Operating the switch may cause a value corresponding to an output of the operation to be stored on a capacitor corresponding to the current bit-order. A time interval during which the switch is operated may be non-uniform with respect to time intervals for other switches, and the time interval may be based at least in part on a settling time of the capacitor. The method may also include performing a bit-order weighted summation of values stored on the plurality of capacitors to generate a result of the vector operation.

Abstract: A 3D-configured production structure of rubber products based on an intelligent manufacturing unit and a production method thereof. The structure includes a stereoscopic production warehouse used to store a mobile intelligent manufacturing unit and an ex-warehouse delivery system used to deliver the mobile intelligent manufacturing unit. The mobile intelligent manufacturing unit includes a unit functional assembly, a molding vulcanization apparatus, a blank feeder, a material-delivering apparatus, a product-collecting apparatus and a reclaimer. The molding vulcanization apparatus includes a upper heat plate, a upper mold, a lower mold, a lower heat plate and a support post. The upper mold and the lower mold are arranged on the inner sides of the upper heat plate and the lower heat plate, respectively. The upper heat plate is fixed on one end of the support post, and the lower heat plate is arranged through the support post.

Abstract: A battery box, including a box body and an LED lamp string. A circuit board mounting groove and a battery placement groove are disposed in the box body, a power supply source is disposed in the battery placement groove, and a circuit board and a cover plate are disposed in the circuit board mounting groove. A power source terminal seat is disposed at one side of the circuit board, at least two terminal plugholes are disposed in the power source terminal seat, a through-line hole is disposed on a side wall of each of the terminal plugholes facing the box body, a collosol groove is between the through-line hole and the power source terminal seat, power source plug terminals are disposed at one end of the LED lamp string, and the power source plug terminals are correspondingly inserted into the terminal plugholes respectively.

Abstract: Disclosed methods and systems may perform testing and test management operations in which an information handling resource is provisioned with a programming hook corresponding to an operation associated with the resource. Extended testing operations may be performed when the hook is triggered. These operations may include selecting a particular test service docker from among one or more extended test service dockers. The particular test service docker may then be downloaded and executed. The triggering operation may be associated with a standard pre-check/post-check test framework and, in such cases, the extended testing operations include one or more tests in addition to the pre-check and post-check. Suitable test service dockers may be maintained in a public and/or private cloud. Some embodiments support customer-defined test service dockers, which may initiate as private dockers, but which may be published to the public cloud and linked to the hook.

Abstract: The present invention provides a material conveying device including a material conveying groove, having a traveling track; a material bearing and conveying assembly, including: an annular chain; traveling units arranged on the chain at intervals, drivable by the chain to move on the traveling track along a material conveying direction, and provided with a bottom surface close to the material conveying groove, a top surface opposite the bottom surface and side surfaces extending between the top and bottom surfaces; a belt-shaped elastic material bearing portion, connected to the top surfaces and/or the side surfaces of the two adjacent traveling units; and a driving device to drive the chain to circularly rotate relative to the material conveying groove along the material conveying direction. The working state of material conveying equipment can be improved, and the stability and economic index of the equipment can be enhanced.