Abstract: The present disclosure relates to a method of deploying a big data cluster. In the present disclosure, a deployment interface is provided, to provide a big data cluster deployment function through the deployment interface. The method includes: in response to a node creation operation in the deployment interface, displaying a to-be-deployed node in a temporary resource pool region in the deployment interface; in response to a drag-and-drop operation on the to-be-deployed node in the temporary resource pool region, displaying the to-be-deployed node in a physical pool in the deployment resource pool region in the deployment interface; and in response to a start deployment operation in the deployment interface, according to the physical pool where the to-be-deployed node is located, creating a container corresponding to the to-be-deployed node on a server corresponding to the physical pool, where the container is configured to provide a big data cluster service.

Abstract: The present disclosure relates to a data processing method and apparatus, a device and a medium. In the present disclosure, by obtaining the attribute data of the operation object corresponding to the node displayed on the target node in the program code and associating the obtained attribute data with the corresponding node, the attribute data associated with the node can be modified directly based on the operation data corresponding to the drag-and-drop operation when dragging and dropping the node on the target node, without the need to search for the operation object, such that through a simple operation process, dragging and dropping the node can be displayed, enabling the node to be displayed at the position where the drag-and-drop operation ends based on the modified attribute data.

Abstract: An electronic device may operate a plurality of light sources, where each light source operates according to a light source code of a light source code set, each light source code being unique with respect to each other light source code, capture a glint signal corresponding to light emitted from the plurality of light sources through an event camera, obtain glint information from event data from the event camera, estimate a corneal sphere center position and an eye rotation center position based on the glint information, and determine three-dimensional (3D) gaze-related information based on the corneal sphere center position and the eye rotation center position.

Abstract: A silicon powder molding method, a silicon block, and their applications in the field of single crystal growth technology are provided. The silicon powder molding method of this application includes the following steps: placing a mold filled with silicon powder under a first pressure P1 condition, maintaining the first pressure condition P1 for a continuous duration of a first pressure time T1, and satisfying 50 MPa?P1?600 MPa, 7 minutes ?T1?15 minutes to obtain a silicon block. A medium applying the first pressure P1 is a liquid. Through pressure control, the molded silicon block is easily removed from the mold without breaking and generating dust. The silicon block is easy to crush when filling and has a controllable particle size distribution after crushing. The silicon block can be directly used for the production of Czochralski grown single crystals, increasing a loading density to 0.18 g/cm3˜0.25 g/cm3.

Abstract: A resource management configuration may receive an API request from an API server. The API request specifies task information from a plurality of tenants. The configuration transmits status information of a plurality of VMs to the API server to assign tasks to one or more VMs based on the task information and the status information. Tasks assigned to a VM of the plurality of VMs are for one tenant of the plurality of tenants. The configuration configures on an untrusted network, network security groups for managing communications of tenants such that a network security group configured for a tenant permits communications between VMs assigned to the same tenant but prevents communications between VMs assigned to different tenants. The configuration pins each assigned VM of the one or more assigned VMs to perform the task based on the task information of the corresponding tenant.

Abstract: A charging method of silicon material and a preparation method for single crystal are provided. The charging method includes: disposing the first material layer in the crucible; and disposing a second material layer on a side of the first material layer away from a bottom of the crucible, to cover the first material layer during vacuuming. The method for preparing a single crystal, using the silicon charging method described above. The preparation method for single crystal used the charging method for silicon material includes: covering a pot lid on the crucible to define a closed crucible body, and vacuuming the closed crucible body; lifting the closed crucible body into a single crystal furnace, and relieving pressure from the closed crucible body.

Abstract: A silicon powder forming method, a silicon block, and a use thereof are provided, which relates to technical field of single crystal growth. The silicon powder forming method according to the present application includes: placing a mold filled silicon powder in a condition for first pressure P1 for a first pressure time T1 to obtain a silicon block, wherein the first pressure P1 and the first pressure time T1 satisfy: 50 MPa?P1?600 MPa, 7 min?T1?15 min. By pressure control, the molded silicon block is easily removed from the mold without crushing dust. The silicon block obtained is easy to crush upon charging, and the particle size distribution of the crushed silicon block is easy to control, resulting in raising less. The silicon block obtained can be directly used for production of Czochralski single crystal, and the charge density is increased to 0.18 g/cm3˜0.25 g/cm3.

Abstract: A high-strength ring groove rivet includes a gun head assembly, a driving mechanism, a transmission mechanism, a power source and a control module arranged in a riveting tool shell. The transmission mechanism has a planetary roller lead screw shaft in coaxial driving connection with the clamping jaw of the gun head assembly, and is also in driving connection with the driving shaft of the driving mechanism through gears installed on the planetary roller lead screw shaft and the driving shaft of the driving mechanism respectively. The planetary roller lead screw is adopted as a component for converting rotary motion into linear motion, the output tension can reach 70 kN, and riveting installation of ring groove rivets with the diameter specification of 12 mm can be effectively completed.

Abstract: The present disclosure provides an engineered Hansenula fungus that efficiently expresses CA10 (Coxsackievirus A10) virus-like particles and uses thereof. The engineered fungus includes a recombinant vector carrying the P1 and 3CD genes of the CA10 virus optimized according to preferred codons of Hansenula. The present disclosure also provides a preparation method for CA10 virus-like particles and vaccines prepared therefrom.

Abstract: A coil decoupling method for a magnetic resonance imaging device, including: sending an instruction causing a transmitter to send a transmitted signal, acquiring a received signal received by a receiver, wherein the received signal is a signal arriving at the receiver after the transmitted signal passes through two coils to be adjusted of a plurality of coils, determining the coupling value between the two coils to be adjusted based on the transmitted signal and the received signal, and sending an instruction for adjusting a decoupling component based on the coupling value.

Abstract: A gas-sensitive material, a preparation method therefore and an application thereof, and a gas sensor using the gas-sensitive material are provided. The gas-sensitive material is a carbon material-metal oxide composite nanomaterial formed by compounding a carbon material and metal oxides. The content of the carbon material is 0.5˜20 wt. % and the content of the metal oxides is 80˜99.5 wt. %; the metal oxides contain tungsten oxide and one or more selected from tin oxide, iron oxide, titanium oxide, copper oxide, molybdenum oxide, and zinc oxide; the metal oxides are formed on the carbon material in the form of nanowires, and the nanowires are tungsten oxide-doped nanowires. The gas-sensitive material has reduced resistance, is capable of responding to various gases at a reduced working temperature.

Abstract: Communications service programs (e.g., packet-switched phone and conferencing software with recordings and voicemail) are enabled to process user data files using custom encryption methods, where the existing service programs should migrate to work with the encrypted data files. A framework is introduced between application and system layer for replacing the major file routines to apply user file encryption routines in a manner that is transparent for existing service programs without requiring re-compiling.

Abstract: A construction method for a radiation-proof concrete hole reserved split bolt includes: 1) mounting a hole reserved sleeve; 2) mounting an inclined recoverable split bolt; 3) mounting an inclined split bolt; 4) fixing the inclined recoverable split bolt and an inclined split bolt main body; 5) pouring concrete, and dismantling related components; 6) plugging the inclined split bolt main body; and 7) plugging the hole reserved sleeve. According to the construction method, the hole reserved sleeve is obliquely arranged, the inner side of the hole reserved sleeve is sprayed with a radiation-proof coating with the functions of reducing radiation ray reflection and absorbing certain radiation rays, and in addition, after the construction of a pipeline or a line in the hole reserved sleeve is finished, the openings at both ends of the hole reserved sleeve are plugged with a radiation-proof mortar incorporated with a micro-expanding agent and a waterproof agent.

Abstract: A chip package structure is provided. The chip package structure includes a first substrate. The chip package structure includes a conductive via structure passing through the first substrate. The chip package structure includes a barrier layer over a surface of the first substrate. The chip package structure includes an insulating layer over the barrier layer. The chip package structure includes a conductive pad over the insulating layer. The conductive pad has a first portion passing through the insulating layer and the barrier layer and connected to the conductive via structure. The chip package structure includes a conductive bump over the conductive pad. The chip package structure includes a second substrate. The chip package structure includes an underfill layer between the first substrate and the second substrate.

Abstract: A photovoltaic system, an inverter starting method and a photovoltaic energy storage system are provided. The photovoltaic system includes: a shutdown device, a controller and an inverter. The inverter includes a DC-DC circuit and an inverter circuit; the DC-DC circuit includes at least two Boost circuits; an input terminal of the shutdown device is connected to a photovoltaic panel, and an output terminal of the shutdown device is connected to an input terminal of the DC-DC circuit; an output terminal of the DC-DC circuit is connected to an input terminal of the inverter circuit. The method includes: controlling the inverter to perform a start-up process in multiple stages in a case that a start-up time of the inverter is greater than a single turned-on period of the shutdown device, where the shutdown device is turned on once in each of the multiple stages.

Abstract: The present invention discloses a multistage variable burning rate solid rocket motor and a forming method. A multi-material composite fiber skeleton structure is embedded inside a propellant in the present invention, so that the original burning rate of the propellant presents multistage changes to achieve the function of multistage thrust. The fiber skeleton structure embedded in the solid rocket motor is formed by additive manufacturing, fixed in a combustion chamber, and then charged at one time to complete the forming of a motor grain. The design can greatly increase the burning rates of the propellants of end-burning and bore-burning motors, and can also conduct multistage adjustment for the burning rates of the motors by changing the fiber skeleton and structure, so as to satisfy the requirements of missile weapon systems for multistage power propulsion. The present invention greatly simplifies the technological production process of the existing single-chamber multi-thrust motor.

Abstract: This disclosure provides methods, devices and systems for increasing carrier frequencies for wireless communications in wireless local area networks (WLANs). Some implementations more specifically relate to packet designs and numerologies that support wireless communications on carrier frequencies above 7 GHz. In some aspects, a wireless communication device may up-clock a physical layer (PHY) convergence protocol (PLCP) protocol data unit (PPDU) for transmission on carrier frequencies above 7 GHz, where the PPDU conforms to an existing PPDU format associated with carrier frequencies below 7 GHz. As used herein, the term “up-clocking” refers to increasing the frequency of a clock signal used to convert the PPDU between the frequency domain and the time domain. In some aspects, the up-clocking may result in a subcarrier spacing (SCS) greater than or equal to 1.2 MHz, where the SCS represents a spacing between the subcarriers on which a PHY preamble of the PPDU is modulated.

Abstract: The disclosure provides a mover and a mixed conveyor line having the mover. The mover is movable mounted on the magnetic power conveyor line or the mixed conveyor line. The magnetic power conveyor line includes a first armature winding; and the mixed conveyor line includes a first driving mechanism. The mover includes: a mover body, including a first permanent magnet array, the first permanent magnet array including two first permanent magnets which are oppositely spaced apart from each other, and the two first permanent magnets and the first armature winding driving, by means of current excitation, the mover body to move along the magnetic power conveyor line; and a driven assembly, connected with the mover body, and configured to be in transport connection with the first driving mechanism and drive the mover body to move along the magnetic power conveyor line or the mixed conveyor line.

Abstract: An electronic device including a die and a connection structure electrically connected to the die is disclosed. The connection structure includes a first insulating layer including an opening, a second insulating layer, a first metal element disposed between the first insulating layer and the second insulating layer, a second metal element disposed in the opening and electrically connected to the first metal element, and a conductive element. The second metal element is electrically connected between the conductive element and the first metal element. A first surface and a second surface of the first insulating layer are contacted with the first metal element and the conductive element respectively. The first insulating layer includes first filling elements, the second insulating layer includes second filling elements, and in a cross-sectional view, a second maximum size of the second filling elements is greater than a first maximum size of the first filling elements.