Abstract: A tooth vibration simulation test system to solve the problem of failure to simulate a tooth vibration of the dual-machine parallel drive gear transmission device and being used in tooth vibration simulation testing, includes a first and a second driving units, a transmission shaft assembly, a servo motor controller, a gear transmission device, a loading shaft, a load dynamometer and a load dynamometer control device. The power output of the first driving unit and the second driving unit are both connected to inputs of the gear transmission device, a power output of the gear transmission device is connected to one end of the loading shaft, another end of the loading shaft is connected to a power input shaft of the load dynamometer through the transmission shaft assembly, a signal input terminal of the load dynamometer is connected to a signal output terminal of the load dynamometer controller.

Abstract: Techniques are disclosed concerning applied magnetic field synthesis and processing of iron nitride magnetic materials. Some methods concern casting a material including iron in the presence of an applied magnetic field to form a workpiece including at least one iron-based phase domain including uniaxial magnetic anisotropy, wherein the applied magnetic field has a strength of at least about 0.01 Tesla (T). Also disclosed are workpieces made by such methods, apparatus for making such workpieces and bulk materials made by such methods.

Abstract: An example jumper storage apparatus is provided and applied to an optical distribution device. The jumper storage apparatus is configured to store a jumper and is divided into a first region and a second region. The second region and the first region are adjacent to each other and have internal spaces in communication with each other, connectors of the jumper are located in the first region, and a cable of the jumper is located in the second region.

Abstract: The present disclosure provides a heat supply device using an underground dry heat source. The heat supply device comprises a cold water supply device, a hot water suction pump and a heat supply pipeline, wherein the cold water supply device is arranged on the ground and used for injecting cold water into the heat supply pipeline; the hot water suction pump is connected with the heat supply pipeline; and the heat supply pipeline comprises a vertical well conduction section and a horizontal well heating section. The present disclosure further provides a heat supply method using the heat supply device using an underground dry heat source. The heat supply method comprises the followings steps: S1, exploring the underground dry heat source; S2, measuring the heat conductivity coefficient of hot dry rock; S3, drilling a well; S4, determining the number of branch wells; and S5, arranging a heat supply device.

Abstract: Protecting membership in secure multi-party computation and communication is provided. A method of protecting membership includes generating a padding dataset, up-sampling a first dataset with the padding dataset, transforming and dispatching the first dataset, receiving a second dataset, and performing a private set intersection operation based on the first dataset and the second dataset to generate a third dataset. Each of the first dataset, the padding dataset, and/or the second dataset includes one or more personal identification information for each user or member in the dataset.

Abstract: A magnetic levitation test system and an electromagnet test method. A vehicle-mounted controller (1024), an electromagnet controller, and an electromagnet are subjected to joint test by means of the magnetic levitation test system integrated with a vehicle-mounted controller test bed (102), an electromagnet controller test bed (104), and an electromagnet test bed (106). The running condition of a train can be simulated, and the vehicle-mounted controller (1024), the electromagnet controller, and the electromagnet are subjected to joint test under the simulated running condition of the train. Therefore, the vehicle-mounted controller (1024), the electromagnet controller, and the electromagnet are subjected to function verification, thereby reducing the fault rate when the vehicle-mounted controller (1024), the electromagnet controller, and the electromagnet are used at the same time.

Abstract: Protecting data privacy in secure multi-party computation and communication is provided. A method of protecting data privacy includes determining a differential privacy configuration, determining a number of iterations based on a first parameter and a second parameter, and for each of the number of iterations generating a random value and a random noise data; generating a first message and a second message; and performing a transfer based on the first message, the second message, and an input data to output one of the first message and the second message. The method also includes generating a first noise data based on the random noise data in each of the number of iterations, generating a first share based on a first dataset and a second dataset, applying the first noise data to the first share, and constructing a result based on the first share and a second share.

Abstract: A magnetic sensing device including a substrate having a supporting surface on which a first sensing area, a third sensing area, and a second sensing area are consecutively arranged in a direction of movement. The first, the second, and the third sensing areas are provided with a first midline, a second midline, and a third midline in the direction of movement, respectively. The first and second midlines are symmetrical with respect to the third midline. The first and second sensing areas are jointly configured to output a first output signal. The third sensing area is configured to output a second output signal. A phase difference between the first and second output signals is 90 degrees, and the first and second output signals are jointly configured to determine the distance or the speed or the angle of movement and the direction of movement of the relative motion.

Abstract: This application discloses a sensing method and apparatus, a terminal, and a network device, and pertains to the field of communication technologies. The sensing method in embodiments of this application includes: determining, by a terminal, a measurement quantity for a sensing signal; and performing, by the terminal, detection on the sensing signal and obtaining a measured value corresponding to the measurement quantity; where the sensing signal is sent by a first network device, and the first network device is a base station.

Abstract: A sensing method, an apparatus, and a network device, and pertains to the technical field of communication. The sensing method of the embodiments of this application includes: sending, by a first network device, a sensing signal; and detecting, by the first network device, an echo of the sensing signal based on a measurement quantity of the sensing signal, and obtaining a measurement value corresponding to the measurement quantity.

Abstract: A sensing method and apparatus, and a network device. The sensing method in embodiments of this application includes: determining, by a first network device, a measurement quantity of a sensing signal; and detecting, by the first network device, the sensing signal to obtain a measurement value corresponding to the measurement quantity, where the sensing signal is sent by a second network device, and the first network device and the second network device are different base stations.

Abstract: The present disclosure provides a display device and a display method. The display device includes: a memory for storing at least one pre-stored image; and a controller for: obtaining first and second target images according to the at least one pre-stored image; and controlling a display module, according to a first control instruction, to display the second target image and hide a display of at least one first sub-region in a first region in a frame displayed after switching from the first target image to the second target image. A size of the first target image is different from that of the second target image, and/or a position of the first target image in a display picture is different from that of the second target image. The first region represents a region within an outer contour of the first target image and not overlapping with the second target image.

Abstract: An apparatus and method for preparing high-purity spherical magnesium and/or high-purity magnesium powder are provided. The apparatus includes a vertical furnace body, a heating zone, and a condensing zone, where a periphery of the condensing zone is provided with a first thermal insulation device and a second thermal insulation device sequentially from bottom to top, and each of the first thermal insulation device and the second thermal insulation device is removably arranged; the periphery of the condensing zone is further provided with a liquid cooling device; a gas inlet and a gas outlet are formed in the condensing zone; and an inner wall of the condensing zone is provided with an arrangement structure configured to arrange a collection device. A heating temperature of a material and condensation conditions in the condensing zone are controlled to make an evaporated magnesium vapor condensed on the collection device in the condensing zone.

Abstract: A method and an apparatus for processing a multi-cloud service, an electronic device, a storage medium and a system are provided. The method includes acquiring a target multi-cloud scheduling instruction, where the target multi-cloud scheduling instruction includes a multi-cloud scheduling demand and description of schedule-required information; transmitting an application for the schedule-required information to a target user in a trusted environment based on the description of the schedule-required information, to obtain the schedule-required information; generating a scheduling strategy in the trusted environment based on the target multi-cloud scheduling instruction and the schedule-required information; and initiating scheduling to a target cloud vendor based on the scheduling strategy to obtain a scheduling result.

Abstract: An apparatus for wireless communication includes a receiver configured to receive a request for data associated with an Internet-of-things (IoT) service session with an IoT cloud server. The apparatus further includes a transmitter configured to transmit, based on receiving the request and prior to transmitting a response to the request, a message indicating a timing parameter associated with availability of the data. The receiver is further configured to receive an uplink grant at a time that is based on the timing parameter, and the transmitter is further configured to transmit the response to the request based on the uplink grant. The response includes at least a subset of the data.

Abstract: Provided are a battery protection circuit and a lithium battery system. The battery protection circuit includes a switch circuit, a drive control circuit, a reverse connection protection circuit and a power supply circuit. A first input terminal of the reverse connection protection circuit is connected to an output terminal of the power supply circuit. An output terminal of the reverse connection protection circuit is connected to a second input terminal of the drive control circuit. The reverse connection protection circuit is configured to output a reverse connection control signal when the battery is reversely connected to a charger. The drive control circuit is configured to control, according to the reverse connection control signal, the switch circuit to turn off.

Abstract: The optical fiber distribution device includes a distribution area, a plugging apparatus, a storage area and/or a recycling area. The distribution area includes a first port and a second port. An optical path between the first port and the second port is implemented by using a connecting jumper. The plugging apparatus can move between the distribution area and the storage area, and/or between the distribution area and the recycling area. The plugging apparatus can fetch a standby jumper from a jumper storage apparatus in the storage area, and insert the standby jumper into the corresponding first port and second port; and/or the plugging apparatus is configured to: remove the connecting jumper from the corresponding first port and second port, and transport the removed connecting jumper to a jumper recycling apparatus in the recycling area.

Abstract: This application relates to the field of lighting, and discloses an LED filament. The LED filament includes an LED chip unit, a light conversion layer, and an electrode. The light conversion layer covers the LED chip unit and part of the electrode, and a color of a light emitted by the LED filament after lighting is different from a color of the light conversion layer. This application has the characteristics of uniform light emission and good heat dissipation effect.

Abstract: A terminal comprises a terminal body including a pair of terminal plates spaced opposite each other in a height direction, and a pair of elastic contact members arranged on respective inner sides of the pair of terminal plates. Each elastic contact member includes an elastic arm having an extension direction inclined with respect to a length direction of the terminal body. The elastic arms are adapted to clamp to a mating terminal inserted therebetween along the extension direction to achieve electrical connection between the terminal and the mating terminal.

Abstract: A message transmission method, and a communication device are provided. The message transmission method includes: receiving, by a second device, a first message sent by a first device. The first message indicates at least one of the following: a waveform of a first signal requested or suggested by the first device, a sub-carrier spacing of the first signal requested or suggested by the first device, a guard interval of the first signal requested or suggested by the first device, a bandwidth of the first signal requested or suggested by the first device, a duration of the first signal requested or suggested by the first device, a time domain interval of the first signal requested or suggested by the first device, sending signal power of the first signal requested or suggested by the first device, or a signal format of the first signal requested or suggested by the first device.