Abstract: A computing circuit is provided. The computing circuit is disposed in a memory device and electrically coupled to a memory cell of the memory device. The computing circuit includes a weight decoder, a multiplier, an adder tree, and an accumulator. The weight decoder is configured to obtain a compressed weight from the memory cell and generate a decoded weight based on the compressed weight. The multiplier is configured to generate a partial-product by multiplying an input signal with the decoded weight. The adder tree is configured to generate a partial-sum by performing an addition operation based on the partial-product. The accumulator is configured to generate an accumulated sum by performing an accumulation operation based on the partial-sum and output an output signal based on the accumulated sum. The accumulated sum is left shifted based on a shift signal.

Abstract: A memory device includes a memory array, a multiply-accumulate (MAC) circuit and an encoder-decoder circuit. The MAC circuit performs a MAC operation on an encoded weight data stored in the memory array and an input data to generate a partial MAC result. An encoder of the encoder-decoder circuit is configured to encode m weight bits among n weight bits of weight data according to an encryption key to generate the encoded weight data, wherein m and n are positive integers, and m is less than n. A decoder of the encoder-decoder circuit is configured to detect an error in the partial MAC result according to the encryption key to generate a decoded partial MAC result.

Abstract: A floating point pre-alignment structure for computing-in-memory applications includes a time domain exponent computing block and an input mantissa pre-align block. The time domain exponent computing block is configured to compute a plurality of original input exponents and a plurality of original weight exponents to generate a plurality of flags. Each of the flags is determined by adding one of the original input exponents and one of the original weight exponents. The input mantissa pre-align block is configured to receive a plurality of original input mantissas and shift the original input mantissas according to the flags to generate a plurality of weighted input mantissas, and sparsity of the weighted input mantissas is greater than sparsity of the original input mantissas. Each of the flags has a negative correlation with a sum of the one of the original input exponents and the one of the original weight exponents.

Abstract: Disclosed are a method, a device and a non-transitory storage medium. The method includes: deploying a detection satellite to fly in one detection orbital plane opposite to the satellites in the large-scale constellation, to sequentially detect satellites flying in one target orbital plane of the large-scale constellation in a manner that an approach distance between the detection satellite and a satellite being detected is within a set detection distance, transmitting the detection satellite from the one detection orbital plane to another detection orbital plane in virtue of Earth oblateness perturbation, so as to sequentially detect satellites flying in another target orbital plane of the large-scale constellation in a manner that the approach distance between the detection satellite and a satellite being detected is within the set detection distance, and stopping the detection satellite from detecting until all satellites of the large-scale constellation have been detected.

Abstract: A control method and apparatus for a compression system, and an air energy heat pump water heater. The compression system includes a compressor, a first electronic expansion valve, and a second electronic expansion valve. The method includes executing a first control step at least once, including determining a first target step number of the first electronic expansion valve; after the first electronic expansion valve is controlled to operate for a first time period according to the first target step number, determining a temperature difference between the current exhaust temperature of the compressor and the current highest water temperature of the water tank; when the temperature difference is less than a first preset value, decreasing the first target step number by a first correction step number; and controlling the first electronic expansion valve to operate according to the decreased first target step number.

Abstract: A terahertz wave detection chip includes a substrate and at least one detection structure. The detection structure is disposed on a surface of the substrate. The detection structure includes a metamaterial layer and a hydrophilic layer, and the hydrophilic layer is disposed on the metamaterial layer.

Abstract: A communication method comprises that if a policy control device does not support setup of an Internet Protocol (IP) multimedia subsystem (IMS) default bearer during setup of an IMS default bearer for a terminal, the control plane gateway sends second indication information to a user plane gateway, where the second indication information indicates the control plane gateway bypasses the policy control device. When the user plane gateway receives an IMS session request from the terminal and determines that the control plane gateway bypasses the policy control device, the user plane gateway sends first indication information to the control plane gateway, and the first indication information indicates the control plane gateway to send, to the policy control device, a first request to request to establish a mapping relationship between the terminal and the control plane gateway such that an IMS session can be set up between terminals.

Abstract: A method for dialogue processing, an electronic device and a storage medium are provided. The specific technical solution includes: obtaining a dialogue history; selecting a target machine from a plurality of machines; inputting the dialogue history into a trained dialogue model in the target machine to generate a response to the dialogue history, in which the dialogue model comprises a common parameter and a specific parameter, and different machines correspond to the same common parameter.

Abstract: The disclosure provides a method of dehydrogenating hydrocarbons, such as C2 or C3 hydrocarbons, selectively and efficiently, to provide the corresponding alkylenes. The method is based on a Pt nanolayer catalyst over MXene (Pt/MXene) that shows resistance to coke deposition. The dehydrogenation conditions developed provided about 22% propane conversion and over 90% selectivity toward the desired propylene product, and the catalyst was stable for a 24-hour continuous run. The byproducts were ethane, ethylene, and methane, and only trace amounts of coke deposition over the catalyst were detected. Similar dehydrogenation conditions provided about 18% ethane conversion and over 90% selectivity toward the desired ethylene product. A mass balance of greater than 96% was achieved in each case.

Abstract: Radio frequency (RF) devices are provided. An RF device includes one or more resonators. The RF device includes an RF connector that is coupled to the resonator(s). Moreover, the RF device includes a printed circuit board that covers the resonator(s) and is coupled to the resonator(s) via the RF connector.

Abstract: A linear actuator includes a controlling module, a driving module and a transmission module. The controlling module includes a circuit board, two micro switches and a socket. The two micro switches are electrically connected to the circuit board. A first end of the socket is electrically connected to the circuit board, and a second end of the socket has a plurality of first connecting parts. The driving module is electrically connected to the controlling module and includes a motor and a connecting mount. The connecting mount is electrically connected to the motor and has a plurality of second connecting parts. The second connecting parts are detachably connected to the first connecting parts so as to electrically connect the connecting mount to the socket. The transmission module is connected to the motor and driven by the motor.

Abstract: The present disclosure relates to a decoding method, apparatus and computer-readable storage medium, which relates to the field of computer technology. The method of the present disclosure includes buffering one or more stream segments of a data stream which are received, wherein the data stream comprises an audio stream; parsing the one or more stream segments buffered until header information is obtained through the parsing; storing the header information; and decoding stream segments of the audio stream among various stream segments received according to the header information until the audio stream is completely decoded.

Abstract: A memory unit with time domain edge delay accumulation for computing-in-memory applications is controlled by a first word line and a second word line. The memory unit includes at least one memory cell, at least one edge-delay cell multiplexor and at least one edge-delay cell. The at least one edge-delay cell includes a weight reader and a driver. The weight reader is configured to receive a weight and a multi-bit analog input voltage and generate a multi-bit voltage according to the weight and the multi-bit analog input voltage. The driver is connected to the weight reader and configured to receive an edge-input signal. The driver is configured to generate an edge-output signal having a delay time according to the edge-input signal and the multi-bit voltage. The delay time of the edge-output signal is positively correlated with the multi-bit analog input voltage multiplied by the weight.

Abstract: The present disclosure provides a method for separating a neural crest derived cell from peripheral blood. In the present disclosure, a mononuclear cell is separated from the peripheral blood and then directly cultured, thereby maximizing use of a neural crest stem cell with a differentiation potential to avoid loss of the neural crest stem cell. In the method of the present disclosure, a sample to be separated is derived from the peripheral blood. The method shows less trauma and low cost. Most importantly, compared to extracting the neural crest derived cell from tissues, the neural crest derived cell extracted from the peripheral blood can be used clinically as a type of biomarker.

Abstract: Described are improved systems, computer program products, and methods for obtaining space usage information within a clustered database system. Some approaches provide an improved algorithm and structure that gives the ability to compute the latest and accurate space usage with only in-memory operations.

Abstract: A package includes a substrate having a conductive layer, and the conductive layer comprises an exposed portion. A die stack is disposed over the substrate and electrically connected to the conductive layer. A high thermal conductivity material is disposed over the substrate and contacting the exposed portion of the conductive layer. The package further includes a contour ring over and contacting the high thermal conductivity material.

Abstract: Disclosed are a system and a method for capturing a space target. The system includes a plurality of capturing devices, a delivery device, a launching device, and a deceleration and recovery device, each of the plurality of capturing devices is configured to be launched into a target orbit to capture a defunct space target, the delivery device is configured to deliver, along a preset delivery trajectory, each of the plurality of capturing devices to a first preset location in the launching device, the launching device is configured to launch each of the plurality of capturing devices located at the first preset location into the target orbit to capture the defunct space target, and the deceleration and recovery device is configured to decelerate each of the plurality of capturing devices after it is launched and flies a preset distance.

Abstract: Methods and corresponding systems and apparatuses for saving power through selectively disabling clock signals in a systolic array are described. In some embodiments, a clock gate controller is operable to output a gated clock signal from which local clock signals of processing elements in the systolic array are derived. The gated clock signal corresponds to a root clock signal that is distributed through a clock distribution network or clock tree. The clock gate controller is located along one branch of the clock distribution network. The branch can be associated with processing elements that form a column within the systolic array. Disabling the gated clock signal disables the local clock signals along the entire branch, preventing any components that are clocked by those local clock signals from consuming power. Additional clock gate controllers can similarly be provided for other branches, including a branch associated with another column.

Abstract: The disclosure discloses a method for generating a conversation, an electronic device, and a storage medium. The detailed implementation includes: obtaining a current conversation and historical conversations of the current conversation; selecting multiple reference historical conversations from the historical conversations and adding the multiple reference historical conversations to a temporary conversation set; and generating reply information of the current conversation based on the current conversation and the temporary conversation set.

Abstract: Some aspects relate to techniques for calibrating a logging tool. In some implementations, the logging tool may estimate certain unknown properties of a signal based on distances between transmitters and receivers of the logging tool and based on frequencies used by the transmitters and receivers. The logging tool may estimate the unknown properties by interpolating values into a mathematical function related to the above-noted distances and frequencies. After estimating the unknown properties, the logging tool may be deployed into the wellbore, where it may use the estimated properties to process signals received through a subsurface formation.