Abstract: A device for preparing ultra-high purity zinc based on intelligently-controlled zone melting, including a slide platform connected with a screw through a servo control system to control movement of a heating-cooling device. A quartz tube is provided inside an induction heater to protect a melting zone. An infrared thermometer is connected to the heater, and configured to monitor temperature within the melting zone, and control power of the heater. A ring magnetic stirrer with non-contact circumferential rotation cooperates with coil to stir zinc melt. A water-cooling copper jacket is connected to two ends of the heater to cool a zinc bar, and its water inlet and outlet are connected with a water chiller. The infrared thermometer monitors temperature of the zinc bar and controls water flow of the cooling system. A lifting device is connected with a base cabinet to change inclined angle of the zinc bar.

Abstract: A high-thermal conductivity composite material is AlNp/ZA27 composite material, including 2%, 4%, 6%, or 8% by volume of aluminum nitride (AlN) ceramic particles and zinc-aluminium-27 (ZA27) alloy. The ZA27 alloy includes 70.52-71.08% by weight of Zn, 25.58˜27.65% by weight of Al, 1.27˜3.45% by weight of Cu, and 0.50% or less by weight of Mg. In the preparation of the high-thermal conductivity composite material, an as-cast AlNp/ZA27 composite material is subjected to homogenizing annealing and reciprocating extrusion.

Abstract: Embodiments of the present disclosure disclose a method and apparatus for a scenario of editing multimedia resources, a device and a storage medium. The method includes: in response to an editing instruction triggered for a target editing template, displaying an import page of a material segment to be edited corresponding to the target editing template, wherein a setting entry for the material segment to be edited and a prompt entry for the material segment to be edited are presented on the import page; in response to a trigger for the prompt entry, displaying an original material segment corresponding to the material segment to be edited; in response to a trigger operation for the setting entry, determining the material segment to be edited; and editing the material segment to be edited into a target multimedia resource in a target editing mode indicated by the target editing template.

Abstract: Techniques are described with respect to processing a federated query. An associated computer-implemented method includes compiling a query received from a client computing system to generate a query statement and a query access plan. The query access plan incorporates a modified database access application programming interface (API) that supports data serialization. The method further includes executing the query access plan to transmit the query statement to a remote database system. The method further includes fetching a query result set from the remote database system including serialized binary large object (BLOB) data. The method further includes deserializing the serialized BLOB data of the query result set and populating an in-memory data structure with deserialized query results. In an embodiment, the method further includes transmitting the deserialized query results to the client computing system.

Abstract: In some examples, for process-to-process communication, such as in function linking, a virtual channel can be provisioned to provide virtual machine to virtual machine communications. In response to a transmit request from a source virtual machine, the virtual channel can cause a data copy from a source buffer associated with the source virtual machine without decryption or encryption. The virtual channel provisions a key identifier for the copied data. The destination virtual machine can receive an indication data is available and can cause the data to be decrypted using a key accessed using the key identifier and source address of the copied data. In addition, the data can be encrypted using a second, different key for storage in a destination buffer associated with the destination virtual machine. In some examples, the key identifier and source address is managed by the virtual channel and is not visible to virtual machine or hypervisor.

Abstract: Examples described herein relate to offload reliable transport management to a network interface device and store packets to be resent, based on received packet receipt acknowledgements (ACKs), into one or more kernel space queues that are also accessible in user space.

Abstract: A medical dental grinding apparatus comprises an apparatus body, wherein an air pipeline, a clamping mechanism, and a grinding mechanism are provided in the apparatus body; the air pipeline includes an air inlet pipeline, an air outlet pipeline, and a U-shaped connection pipeline; a silencer is connected to an upper port of the air outlet pipeline; a plane where the air pipeline is located is perpendicular to a plane where the clamping mechanism is located, and the grinding mechanism is provided below the air pipeline; the grinding mechanism is driven by high-pressure air in the air pipeline to operate, so that a hidden danger of electric leakage caused by using an electric apparatus in a fragile oral environment is avoided; and a steel wire is fixed by the clamping mechanism, so that the grinding safety is ensured.

Abstract: A method for synthesizing and application embedded alkaline earth metal oxide solid alkali includes: firstly, synthesizing an alkaline earth metal organic skeleton with single or multiple alkaline earth metals (Mg, Ca and Sr) as central metal elements; and then controlling the heating process to carry out high-temperature pyrolysis in a non-oxidizing atmosphere, so that the alkaline earth metal oxide are embedded in the nano carbon sheet to obtain a solid alkali catalyst. Finally, the catalyst is used to catalyze the transesterification of palm oil and methanol to produce biodiesel. The active site of the solid alkali obtained by the method is anchored on the nano-like carbon sheet, so that the active site is directly exposed on the surface of the catalyst, the catalytic activity is improved, the loss of the active site is inhibited, and the stability of the solid alkali catalyst is enhanced.

Abstract: A medical dental grinding apparatus comprises an apparatus body, wherein an air pipeline, a clamping mechanism, and a grinding mechanism are provided in the apparatus body; the air pipeline includes an air inlet pipeline, an air outlet pipeline, and a U-shaped connection pipeline; a silencer is connected to an upper port of the air outlet pipeline; a plane where the air pipeline is located is perpendicular to a plane where the clamping mechanism is located, and the grinding mechanism is provided below the air pipeline. According to the present invention, the grinding mechanism is driven by high-pressure air in the air pipeline to operate, so that a hidden danger of electric leakage caused by using an electric apparatus in a fragile oral environment is avoided; and a steel wire is fixed by means of the clamping mechanism, so that the grinding safety is ensured.

Abstract: Embodiments of the disclosure pertain to an optical or optoelectronic transceiver comprising an optical or optoelectronic receiver, an optical or optoelectronic transmitter, a plurality of electrical devices, a housing, and a heat sink having a non-planar surface. The optical or optoelectronic receiver includes a receiver optical subassembly (ROSA). The optical or optoelectronic transmitter includes a transmitter optical subassembly (TOSA). The electrical devices are configured to provide or control one or more functions of the optical or optoelectronic receiver and the optical or optoelectronic transmitter. The housing is over and/or enclosing the optical or optoelectronic receiver and the optical or optoelectronic transmitter. The housing includes a first section and a second section, and is configured to (a) be removably insertable into a cage or socket of a host device and (b) position the first section of the housing outside the cage or socket when the housing is inserted in the cage or socket.

Abstract: An atomizing nozzle including a nozzle body, a flow orifice plate, a multi-stage decompression sleeve and a dual-conical surface nozzle head. One end of the nozzle body opposite to the dual-conical surface nozzle head is provided with an external thread; one end of the nozzle body close to the dual-conical surface nozzle head is provided with an internal hole and an internal thread. The external thread of the nozzle body is connected to external equipment. The flow orifice plate, the multi-stage decompression sleeve and the dual-conical surface nozzle head are arranged in the internal hole. The flow orifice plate is arranged on one end of the dual-conical surface nozzle close to the external thread of the nozzle body. The multi-stage decompression sleeve is arranged on the flow orifice plate.

Abstract: An atomizing nozzle including a nozzle body, a flow orifice plate, a multi-stage decompression sleeve and a dual-conical surface nozzle head. One end of the nozzle body opposite to the dual-conical surface nozzle head is provided with an external thread; one end of the nozzle body close to the dual-conical surface nozzle head is provided with an internal hole and an internal thread. The external thread of the nozzle body is connected to external equipment. The flow orifice plate, the multi-stage decompression sleeve and the dual-conical surface nozzle head are arranged in the internal hole. The flow orifice plate is arranged on one end of the dual-conical surface nozzle close to the external thread of the nozzle body. The multi-stage decompression sleeve is arranged on the flow orifice plate.

Abstract: This invention provides a Fe3O4/TiO2 composite nano-particle, its preparation and application in the magnetic resonance imaging (MRI) contrast agent, wherein the preparation of Fe3O4/TiO2 composite nano-particles has the followings steps: trivalent iron compounds and bivalent iron compounds are dissolved into a reducing acid water solution, and then added with tetravalent titanium salt solution to obtain the Fe3O4/TiO2 composite nano-particle sol. The Fe3O4/TiO2 composite nano-particles prepared by the method in the invention have the properties of superparamagnetism and photocatalytic activity and can be applied to MRI contrast agents.

Abstract: The present invention discloses an apparatus and a method for controlling a driving amplitude of a DQPSK transmitter. The method includes: a DQPSK modulator modulating an optical signal emitted from a CW and without adding with modulated signal; a modulator feedback control unit is connected with a first bias point, a second bias point and a third bias point and controls the first bias point, the second bias point and the third bias point according to a part of the optical signal modulated by the DQPSK modulator; controlling the driving amplitude of a driver I according to temperature change of the driver I; controlling the driving amplitude of a driver Q according to temperature change of the driver Q. The present invention can be used to simplify complexity of the control circuit of the DQPSK transmitter, and therefore no extra optical signal-to-noise ratio cost would be created.

Abstract: A sun shield device for automobile includes a tubular central axle, a revolving sleeve which has a diameter larger than and a length shorter than that of the central axle being rotatably supported around the central axle, a shading sheet engaged on and wound around the revolving sleeve, an auto-rewinding device which is installed between the central axle and the revolving sleeve for driving the revolving sleeve to rotate so as to automatically rewind the shading sheet around the revolving sleeve, a supporting device including a pair of supporters extendably connected to two ends of the central axle respectively, and an adjusting device for adjusting the length of at least one of the supporters so as to adjust an overall length of the sun shield device until two supporting end members of the two supporters respectively firmly pressed against two interior side walls of a trunk of an automobile so as to horizontally support the sun shield device within the trunk.