Abstract: An apparatus for purifying sodium metal including: a top flange, a transparent slice, a hollow flange, a vacuum distillation kettle, gaskets, and bolts. With this apparatus, solid sodium is liquefied by heating. The volatile impurities contained in the liquid sodium metal evaporate out of the vacuum pump. After heating the liquid sodium to a high temperature, circulating cooling water is added to the condenser tube by radiation-auxiliary distillation. High-purity argon is then added to remove volatile impurities, and thermal radiation is performed to accelerate the evaporation rate at the surface of the liquid sodium. Consequently, gaseous sodium rapidly condenses on the condenser tube and becomes solid sodium.

Abstract: Method, system, and programs for reducing network latency in a network. A first connection is established between a relay and a host in the network. The relay receives non-confidential information from the host over the first connection. A second connection is then established between the relay and a node in the network. The relay then communicates with the node, over the second connection, non-confidential information on behalf of the host based on the received non-confidential information from the host. The relay also forwards, over the first and second connections, confidential information between the node and the host.

Abstract: This invention provides a method to purify sodium metal. The developed apparatus consists of a top flange, a transparent slice, a hollow flange, a vacuum distillation kettle, gaskets, and bolts. With this apparatus, solid sodium is liquefied by heating. The volatile impurities contained in the liquid sodium metal evaporate out of the vacuum pump. After heating the liquid sodium to a high temperature, circulating cooling water is added to the condenser tube by radiation-auxiliary distillation. High-purity argon is then added to remove volatile impurities, and thermal radiation is performed to accelerate the evaporation rate at the surface of the liquid sodium. Consequently, gaseous sodium rapidly condenses on the condenser tube and becomes solid sodium. Thermal radiation-auxiliary distillation is finally realized to refine sodium metal.

Abstract: The present invention provides a graphene coating-modified electrode plate for lithium secondary battery, characterized in that, the electrode plate comprises a current collector foil, graphene layers coated on both surfaces of the current collector foil, and electrode active material layers coated on the graphene layers. A graphene coating-modified electrode plate for lithium secondary battery according to the present invention comprises a current collector foil, graphene layers coated on both surfaces of the current collector foil, and electrode active material layers coated on the graphene layers. The graphene-modified electrode plate for lithium secondary battery thus obtained increases the electrical conductivity and dissipation functions of the electrode plate due to the better electrical conductivity and thermal conductivity of graphene. The present invention further provides a method for producing a graphene coating-modified electrode plate for lithium secondary battery.

Abstract: Method, system, and programs for reducing network latency in a network. A first connection is established between a relay and a host in the network. The relay receives non-confidential information from the host over the first connection. A second connection is then established between the relay and a node in the network. The relay then communicates with the node, over the second connection, non-confidential information on behalf of the host based on the received non-confidential information from the host. The relay also forwards, over the first and second connections, confidential information between the node and the host.

Abstract: A method and device for locating voice transmission problems are provided. The method includes: configuring a data transmitting/receiving statistics module at each transmission stage of a media stream to perform statistics on data transmitting/receiving of the transmission stage; the data transmitting/receiving statistics module reporting data after statistics to a preset data analysis module; and the data analysis module locating the voice transmission problems after analyzing the data reported by the data transmitting/receiving statistics module. The device includes the data transmitting/receiving statistics module and the data analysis module. The method and device can automatically detect the voice transmission problems such as getting through in one-way, discontinuous, etc.

Abstract: The present invention relates to an aqueous phase process for purifying long-chain dicarboxylic acids from a liquid containing a long-chain dicarboxylic acid/or a salt thereof. The invention overcomes the disadvantages of low purity and high chroma of the product obtained by using the aqueous phase process of the prior art. Through the step of crystallizing the monosalt of long-chain dicarboxylic acid, the present process reduces effectively the content of such impurities as proteins and coloring materials in the product and obtains the long-chain dicarboxylic acid product having a total acid content of greater than 99 wt % and exhibiting a white appearance.