Abstract: A centrifugal compressor assembly and method of operation provides a motor that drives a first stage compressor. The motor comprises a rotor. The motor uses radial aerostatic bearings to stabilize rotation and axial displacement of the rotor. The motor also uses a thrust aerostatic bearing to balance an axial force of the rotor. The radial aerostatic bearings and the thrust aerostatic bearing use a low-viscous vapor-liquid two-phase fluid as a lubricating medium. The radial aerostatic bearings supports the rotor. The thrust aerostatic bearing uses porous aerostatic bearings that use a low-viscous vapor-liquid two-phase fluid, so as to reduce radial and axial oscillation of the rotor. This enables clearance between a blade tip of an impeller and a volute. This causes a seal clearance to be reduced by a half; thereby increasing efficiency of the centrifugal compressor by at least 10 percent.

Abstract: One embodiment provides a system for measuring optical fiber channel loss in photonic communication. During operation, a first multiplexing device receives a first signal which is a photonic signal and a second signal which is a reference light signal transmitted by a first measuring device. In response, the first multiplexing device couples the first signal with the second signal, and transmits the coupled signal via an optical fiber channel to a second multiplexing device. The second multiplexing device separates the coupled signal into a separated first signal and a separated second signal, and transmits the separated second signal to a second measuring device. The system obtains indices related to a degree of loss of the optical fiber channel based on the separated second signal.

Abstract: Embodiments of the present disclosure disclose a method and apparatus for playing a video. A specific embodiment of the method includes: in response to detecting a target video is played to an image frame associated with a time node, pausing the playing of the target video, the target video being acquired from a server by a smart device in response to receiving a video playing voice command in a form of voice; sending to the server a request for acquiring voice interactive content corresponding to the time node; receiving the voice interactive content returned by the server; and playing the received voice interactive content. According to the embodiment, the interactive interaction with the user performed through a dialogue is implemented during the playing of the video.

Abstract: The present disclosure provides a method and a system for interacting with a third-party application. The method includes receiving voice data from a user for launching the third-party application; sending the voice data to a cloud server; receiving the instruction for launching the third-party application from the cloud server; executing the instruction to launch the third-party application; receiving voice data for operating the third-party application from the user after the third-party application is launched; sending the voice data to the cloud server, such that the cloud server performs voice recognition and semantic understanding on the voice data to obtain an instruction for operating the third-party application; receiving the instruction for operating the third-party application sent by the cloud server and forwarding the instruction to the third-party application, such that the third-party application executes the instruction.

Abstract: An automatic wire arranging device includes a controller, at least one driving device electrically connected with the controller, a first wire clamping jig connected with the at least one driving device, a second wire clamping jig disposed to the first wire clamping jig, at least one charge-coupled device camera connected with the controller, and at least one puncher pin connected with the at least one driving device. The first wire clamping jig opens a plurality of first clamping slots. Each of the plurality of the first clamping slots opens a through-hole. The second wire clamping jig opens a plurality of second clamping slots. The at least one puncher pin is capable of penetrating through the through-hole and pushing against a core wire to be away from one of the plurality of the first clamping slots and be blocked in one of the plurality of the second clamping slots.

Abstract: A physiological signal measurement device includes a housing, a bracket, a rigid circuit board fastened in the housing, a first flexible circuit board assembled in the housing and the in-ear portion, and a protective sleeve. The housing protrudes frontward to form an in-ear portion. The bracket has a base portion fastened to the in-ear portion. Several portions of a front surface of the base portion protrude frontward to form a plurality of first elastic portions. The first flexible circuit board has a resilient end. The resilient end of the first flexible circuit board surrounds the plurality of the first elastic portions. The protective sleeve has a fastening portion, and a plurality of second elastic portions protruded from the fastening portion. The plurality of the second elastic portions surround the plurality of the first elastic portions and the resilient end of the first flexible circuit board.

Abstract: Embodiments provide a voice interaction method, a device, and a storage medium. The method includes: transmitting obtained audio data of a user to a server for semantic understanding, to obtain structured data; receiving the structured data returned by the server; and controlling, according to a running game and the structured data, the game to perform a corresponding operation. In the embodiments, voice recognition and semantic understanding technologies are used to enable a user to complete an operation of a game under a dialogue interaction through a communication between a terminal device and a server, thus enhancing game experience of the user and improving entertainment and convenience.

Abstract: A method for expanding circulating tumor cell in vitro includes preparing a cell culture tool having a multi-particle colloidal crystal layer, preparing a cell solution including circulating tumor cells, and contacting the cell solution with the multi-particle colloidal crystal layer, to attach the circulating tumor cells in the cell solution to the multi-particle colloidal crystal layer and rapidly expand by 20 times or more. The multi-particle colloidal crystal layer at least includes first particles having a particle size of 1000 to 5000 nm and second particles having a particle size of 20 to 400 nm. The culture medium in the cell solution at least includes a platelet lysate.

Abstract: One embodiment of the present application provides a system for key management. During operation, the system determines a key block from a key sequence obtained based on Quantum Key Distribution (QKD) and a time sequence identifier for the key block. The system synchronizes the key block with a corresponding key block of a partner key management system based on a hash of the key block and the time sequence identifier. If the synchronization is successful, the system stores the key block and the time sequence identifier in a key pool. If the system receives a request for a key from an application, the system acquires the key block from the key pool and validates the key block with the partner key management system based on a hash of the key block and the time sequence identifier. If the validation is successful, the system provides the key block to the application.

Abstract: One embodiment provides a system for facilitating distribution of quantum keys. During operation, the system receives, from a requester, a first request for a key, wherein the first request indicates a requested length for the key and identifying information of the requester. The system determines whether a subset pool of a general pool of keys is allocated to the requester based on the identifying information of the requester, wherein the keys in the general pool are generated by a quantum engine. In response to determining that a subset pool is not allocated to the requester, the system allocates a subset pool to the requester. The system obtains from the allocated subset pool a key with a length matching the requested length, and the system returns the obtained key to the requester.

Abstract: A method and apparatus for constructing an artificial intelligence application are provided. A specific embodiment of the method includes: acquiring a content description document corresponding to a piece of content provided by a content supplier and a hierarchical relationship between content categories; analyzing the content description document to obtain a content attribute, and constructing an operation description template based on the hierarchical relationship between the content categories, or the content attribute; binding the operation description template to a preset interface of an operation type of an operation described by the operation description template; and constructing an artificial intelligence application using the operation description template and the preset interface bound to the operation description template.

Abstract: One embodiment provides a system for measuring optical fiber channel loss in photonic communication. During operation, a first multiplexing device receives a first signal which is a photonic signal and a second signal which is a reference light signal transmitted by a first measuring device. In response, the first multiplexing device couples the first signal with the second signal, and transmits the coupled signal via an optical fiber channel to a second multiplexing device. The second multiplexing device separates the coupled signal into a separated first signal and a separated second signal, and transmits the separated second signal to a second measuring device. The system obtains indices related to a degree of loss of the optical fiber channel based on the separated second signal.

Abstract: One embodiment described herein provides a system and method for distributing quantum keys between first and second applications running on first and second client devices, respectively. During operation, a first application running on the first client device can transmit a first key request to a first quantum-key-management (QKM) module managing a first set of quantum keys, and transmit a notification to the second application running on the second client device, the notification prompting the second application to transmit a second key request to a second QKM module managing a second set of quantum keys. The first application can receive, from the first QKM module, a first quantum key based on the first key request, in response to the first QKM module determining that the second application receives a second quantum key based on the second key request.

Abstract: A ball joint holder with limiting element includes a lower base, an upper base covered to the lower base, a ball shaft and a limiting element. The ball shaft has a rotation rod, and a ball body located around a lower end of the rotation rod. A lower end of the rotation rod protrudes outward to form a limiting block. Two opposite ends of the limiting element are pivotally connected with the lower base and the upper base. The limiting element opens a limiting groove. One of inner surfaces of a front wall and a rear wall of the limiting groove is defined as a limiting surface. The lower end of the rotation rod and the limiting block are received in the limiting groove. The limiting block is capable of abutting against the limiting surface.

Abstract: An intelligent PCIe slot lane assignment method applied to a motherboard including a CPU capable of providing at least 16 lanes, a switch circuit, a PCIe slot assembly consisting of a first PCIe slot, a second PCIe slot and a third PCIe slot, and a logic controller. The intelligent control of the logic controller in detection of the insertion of a PCIe expansion card in the first PCIe slot, second PCIe slot and third PCIe slot of the PCIe slot assembly enables the switch circuit to automatically assign lanes to the first PCIe slot, second PCIe slot and third PCIe slot of the PCIe slot assembly according to the detection results, increasing the convenience of expansion application and having a higher performance and expansibility.

Abstract: One embodiment provides a system for measuring optical fiber channel loss in photonic communication. During operation, a first multiplexing device receives a first signal which is a photonic signal and a second signal which is a reference light signal transmitted by a first measuring device. In response, the first multiplexing device couples the first signal with the second signal, and transmits the coupled signal via an optical fiber channel to a second multiplexing device. The second multiplexing device separates the coupled signal into a separated first signal and a separated second signal, and transmits the separated second signal to a second measuring device. The system obtains indices related to a degree of loss of the optical fiber channel based on the separated second signal.

Abstract: A high-average-power OPCPA amplifier comprising a pump laser, a signal laser, and a nonlinear crystal amplifier. The pump laser includes an Nd:YVO4 laser oscillator-regenerative amplifier, an Nd:YAG boost amplifier, a frequency-doubling convertor, and a frequency-tripling convertor. The signal laser includes a supercontinuum generator, a pulse stretcher, and a pulse compressor. The chirped signal and the pump laser is intersected with a noncollinear angle of 3.0° to 4.0° in the nonlinear crystal amplifier and the temperature of the crystal amplifier is set at higher than 320K for simultaneous temperature- and wavelength-insensitive phase-matching.

Abstract: The present disclosure relates to an airbag housing and an airbag assembly. There is provided an airbag assembly comprising: a bottom wall; and a side wall for forming a cavity accommodating an airbag cushion together with the bottom wall, wherein at least a portion of the side wall is formed in a double layer structure. There is also provided an airbag assembly having the airbag housing.

Abstract: A toy block with slot tracks formed thereon takes the form of a hexahedron with six track surfaces. A slot is formed on each of at least one of the track surfaces and has multiple connection ends extending and connecting to different edges of the track surface. Each toy block can at most include six different slots to attain high degree of diversity and variety for playing the toy block. When multiple ones of the toy blocks are assembled, users just need to get the multiple toy blocks to approach each other and the multiple toy blocks can be quickly assembled into a toy block set with high degree of variation and entertaining effect.

Abstract: Embodiments of the present disclosure relate to a communications apparatus and a wireless communications device. The communications apparatus includes M communications sublinks including M sub antenna arrays divided into at least two rows. Two adjacent sub antenna arrays are arranged in an interleaved manner, or the M sub antenna arrays are arranged on a straight line, and the two adjacent sub antenna arrays share n elements.