Abstract: The present disclosure provides a liquid cooling system for dissipating heat from a heat source, including a liquid cooling module and a liquid leakage detecting module. The liquid cooling module includes a liquid cooling component. The liquid cooling component includes a liquid cooling plate, a liquid supply pipeline and a liquid return pipeline. The liquid supply pipeline and the liquid return pipeline are in communication with the liquid cooling plate receptively. The liquid leakage detecting module includes a liquid leakage detecting device, a monitoring device and a main wire. The liquid leakage detecting device includes a hub and a plurality of liquid leakage detection branches. The liquid leakage detection branches are electrically connected to the hub in parallel, and are provided in the liquid supply pipeline and the liquid return pipeline respectively. The main wire electrically connects the hub to the monitoring device.

Abstract: The present disclosure provides a cooling device, including a cooling plate and a mounting cover. A lower flow channel is provided in the cooling plate, a top of the cooling plate is provided with a water outlet and two openings. The water outlet is located between the two openings. The mounting cover is sealed on the top of the cooling plate. The mounting cover comprises a first mounting cover and a second mounting cover. The first mounting cover and the cooling plate form an intermediate flow channel, the second mounting cover and the cooling plate form a branch flow channel. The intermediate flow channel is in communication with the two branch flow channels, The first mounting cover is provided with a water inlet, and the two branch flow channels are in communication with the lower flow channel through the two openings.

Abstract: A test fixture configured to support a DUT (device under test) and including a bottom base, two mounting bases, a rotatable base and a supporting base. The two mounting bases stand on a side of the bottom base and are spaced apart from each other. The rotatable base is rotatably disposed on the two mounting bases. At least a part of the rotatable base is located between the two mounting bases. The supporting base is fixed on a side of the rotatable base and configured to support the DUT. When the supporting base is parallel to the bottom base, the supporting base is located on a side of the rotatable base located farthest away from the bottom base.

Abstract: An avatar carrier generating system for metaverse and method thereof are disclosed. Before a living body enters a metaverse, a sensing element senses the living body to generate a physiological feature, and after a real-name identity message is received, the real-name identity message and the physiological feature are converted into metadata compliant with a non-fungible token standard; the non-fungible token, which is owned by the living body, is generated on the blockchain based on the metadata. When the living body enters the metaverse, an avatar carrier for entering the metaverse is generated based on the metadata of the non-fungible token, and when the avatar carrier receives an identification request, the avatar carrier is permitted to provide at least one of the physiological feature and the real-name identity message, so as to achieve the effect of improving identifiability and authentication of the avatar carrier of the metaverse.

Abstract: A circuit board assembly includes a circuit board, a noise source and a shielding cover. The circuit board has an upper surface, a lower surface and a plurality of grounding areas. The lower surface faces away from the upper surface, and the grounding areas are located at the lower surface. The noise source is located at the upper surface of the circuit board. The shielding cover includes a covering body and a plurality of elastic grounding arms. The covering body is in contact with the upper surface and covers the noise source. The elastic grounding arms are connected to the covering body. The elastic grounding arms are in contact with the lower surface of the circuit board and respectively in electrical contact with the grounding areas.

Abstract: An optimization method for data flow includes converting a plurality of extract-transform-load (ETL) scripts into a data flow diagram, wherein the data flow diagram includes a plurality of data lineages, with each data lineage including a plurality of data nodes; performing a first merging process, which repeatedly identifies at least two data lineages with the same nodes and merges them into a data family until any two of the data lineages do not have the same nodes; performing a second merging process, which calculates a column similarity of a pair of node, wherein the pair of nodes includes two adjacent data nodes within a data lineage; when the column similarity exceeds a threshold, merging the two data nodes; when the column similarity of the pair of nodes falls below the threshold, the data flow diagram is optimized, which is then converted into ETL scripts accordingly.

Abstract: An temperature control method including the following steps: driving an temperature control device to generate air circulation for a first server and a second server; monitoring operation state of the temperature control device, the first server and the second server continuously to establish a first learning model; receiving an temperature control state data of the temperature control device, a first state data of the first server, and a second state data of the second server, wherein the first state data includes a first temperature, and the second state data includes a second temperature; inputting the temperature control state data, the first state data, and the second state data into the first learning model to obtain a first temperature prediction value output by the first learning model; and adjusting the temperature control device according to the first temperature prediction value.

Abstract: A functional testing device includes a substrate, an input/output module, a plurality of functional testing modules, a baseboard management control module and a power module. The input/output module is disposed on the substrate and configured to receive a test script. The plurality of functional testing modules are pluggably disposed on the substrate. The baseboard management control module is disposed on the substrate and connected to the input/output module and the plurality of functional testing modules, the baseboard management control module is configured to control the plurality of functional testing modules output a plurality of testing signals according to the test script. The power module is disposed on the substrate and configured to receive and transmit power to the plurality of functional testing modules and the baseboard management control module.

Abstract: An operating method of a fully homomorphic encrypted neural network model is provided, wherein the fully homomorphic encrypted neural network model includes a plurality of layers, and the method performed by a processor includes: for one of the plurality of layers, encrypting a plaintext input with a first encryption algorithm to generate a ciphertext vector, performing a convolution operation according to the ciphertext vector to generate a result vector, transforming the result vector into a plurality of result ciphertexts adopting a second encryption algorithm, inputting the plurality of result ciphertexts into an activation function to generate a plurality of encrypted activation values, and repacking the plurality of encrypted activation values to generate an output vector adopting the first encryption algorithm.

Abstract: A functional testing device includes a substrate, a plurality of connection ports, an input/output module, a main control module and a power module. The plurality of connection ports are disposed on the substrate. The input/output module is disposed on the substrate and configured to receive at least one test script. The main control module is disposed on the substrate and connected to the plurality of connection ports, the main control module is configured to output a plurality of testing signals to at least one of the plurality of connection ports according to the at least one test script. The power module is disposed on the substrate and configured to receive and transmit power to the main control module.

Abstract: A functional testing method, adapted to a device under test, includes, by a main control chip, performing: requesting a test script according to identification information of the device under test from a database server, wherein the test script comprises a plurality of testing items of different types, and testing the device under test according to the test script.

Abstract: A liquid cooling device includes a base plate, a cooling body, and a cover plate. The cooling body includes a frame. A cooling layer is provided in the frame and a reflux layer is provided above the cooling layer. The cooling layer is provided with a plurality of cooling channels extending from a center portion of the cooling body to the frame. The reflux layer is provided with a plurality of reflux channels in communication with the plurality of cooling channels. A periphery of the reflux layer is provided with a drainage flow channel in communication with the plurality of the reflux channels. A center portion of the cover plate being provided with a liquid inlet in communication with the plurality of cooling channels, and the cover plate is further provided with a liquid outlet in communication with the drainage flow channel.

Abstract: A smart key device includes a battery, a power detection module, a power indication module, and a microcontroller, wherein the battery is electrically connected to the power detection module and the microcontroller, and the microcontroller is electrically connected to the power detection module and the power indication module. The power detection module is configured to be controlled by the first control signal to detect remaining power. The power indication module is configured to be controlled by a second control signal to indicate the remaining power. The microcontroller is configured to generate the first control signal and the second control signal, wherein the second control signal includes the remaining power.

Abstract: A smart key device includes a battery, a wireless charging module, a sound output component, a distance measuring module, and a control module, wherein the wireless charging module is electrically connected to the battery, and the control module is electrically connected to the wireless charging module, the sound output component and the distance measuring module. The wireless charging module receives power and provide power to the battery. The sound output component is enabled by a first enable signal to output a sound prompt. The distance measuring module is enabled by a second enable signal to perform distance measurement. The control module includes a Bluetooth transceiver and a microcontroller, wherein the microcontroller generates the second enable signal when the Bluetooth transceiver receives a pairing signal and generates the first enable signal when determining that the measured distance is less than a preset distance.

Abstract: A heat flow control method, for a data center cooling system, includes determining a plurality of features corresponding to a current scene of the data center cooling system at a first time point; and determining a plurality of cooling parameters at a second time point according to the plurality of features; wherein the data center cooling system utilizes the plurality of cooling parameters to control heat flow at the second time point; wherein the second time point lags the first time point.

Abstract: A service plan generation method performed by a computing device includes: receiving a service request, wherein the service request includes a plurality of feature labels; selecting a plurality of recommended items from an item database according to the plurality of feature labels; calculating a plurality of item failure rates according to a plurality of historical execution records of the plurality of recommended items; calculating a plurality of redo counts corresponding to the plurality of recommended items according to the plurality of item failure rates; generating a plurality of buffer items corresponding to the plurality of recommended items according to the plurality of redo counts; and performing a scheduling according to the plurality of recommended items and the plurality of buffer items to generate a service plan.

Abstract: A wireless charging device includes a near-field communication chip, a plurality of charging modules, a plurality of infrared sensors, a switching component and a control module, wherein the control module is connected to the near-field communication chip, the plurality of charging modules, the plurality of infrared sensors and the switching component. The switching component is connected to the near-field communication chip and the plurality of charging modules. The plurality of infrared sensors are respectively disposed at the plurality of charging modules. The control module is configured to control the switching component to conduct the near-field communication chip and the near-field communication antenna of a target module among the plurality of charging modules according to a sensing signal of each of the plurality of infrared sensors.

Abstract: A fan efficiency control method, for a server, wherein the server comprises a plurality of fans and at least one sensor, the fan efficiency control method includes determining a plurality of system parameters of the plurality of fans of the server; obtaining a current temperature through the at least one sensor, and obtaining a temperature parameter corresponding to a main heat source of the server according to the current temperature; obtaining a modulation function; calculating a speed weight of each fan of the plurality of fans according to the plurality of system parameters, the modulation function and the temperature parameter; and adjusting a speed of one of the plurality of fans according to the speed weight.

Abstract: An inference method for encrypted deep neural network model is executed by a computing device and includes: encoding a message according to a quantization parameter to generate a plaintext, encrypting the plaintext according to a private key to generate a ciphertext, sending the ciphertext to a deep neural network model to generate a ciphertext result, decrypting the ciphertext result according to the private key to generate a plaintext result, and decoding the plaintext result according to the quantization parameter to generate an inference result.

Abstract: A liquid cooling plate assembly is configured to be in thermal contact with a first heat source and a second heat source. The liquid cooling plate assembly includes a cold plate and a plurality of heat pipes. The cold plate includes a plate body and a plurality of fins. The plate body is configured to be in thermal contact with the first heat source and the second heat source, the plate body has a fluid chamber and an inner bottom surface, the inner bottom surface is located at a bottom of the fluid chamber, and the fins protrude from the inner bottom surface. The heat pipes are located in the fluid chamber and thermally coupled to the fins, and the heat pipes are arranged side by side and are in thermal contact with one another.