Abstract: A method for producing 2-keto-3-deoxygluconate (KDG) from 2-(acetylamino)-2-deoxy-D-gluconic acid (GlcNAc1A) by two enzymes; GlcNAc1A is converted to KDG by incubating GlcNAc1A with a deacetylase OngB at 25° C. for 4-12 h and then with a deaminase OngC at 25° C. for another 10-15 h; it constructs two engineered E. coli/pET22b-ongB (carrying the ongB gene) and E. coli/pET22b-ongC (carrying the ongC gene) strains to prepare recombinant proteins OngB and OngC, respectively; at the action of these two enzymes, OngB and OngC, GlcNAc1A is converted to KDG, which solves the bottleneck of GlcNAc1A utilization during the bioconversion of chitin; the KDG is an important metabolic intermediate to synthesize furan derivatives, herbicides, food additives and other industrially important chemical compounds, having wide industrial applications.

Abstract: This application discloses a battery box. The battery box includes a controller, a first sensor, and a spraying apparatus and an extinguishing agent pipeline that are located above a battery module. The controller is electrically connected to the first sensor and the spraying apparatus. The spraying apparatus is connected to the extinguishing agent pipeline. The first sensor is configured to detect a temperature of the battery box, and send a first electrical signal to the controller. The controller is configured to control the spraying apparatus to spray an extinguishing agent to the battery module. According to the solution of this application, when thermal runaway occurs in the battery box, and the temperature exceeds a set threshold, a fire may be extinguished in time, to avoid spreading of the fire and reduce a loss.

Abstract: This application discloses an information processing method performed at an application server. The application server receives a first virtual article identifier and a first account sent by a terminal in response to an operation of a user on a virtual article presentation interface. The server generates and stores a first order including the first virtual article identifier and the first account, obtains a current bill provided by a payment system and forwarded by the terminal, and a second account used to log into the terminal. The server determines a second order corresponding to the current bill, associates the current bill with the second order when a virtual article identifier and an account in the second order are the same as the second virtual article identifier and the second account; and sends a virtual article corresponding to the second virtual article identifier to the second account.

Abstract: This application discloses an information processing method performed at an application server. The application server receives a first virtual article identifier and a first account sent by a terminal in response to an operation of a user on a virtual article presentation interface. The server generates and stores a first order including the first virtual article identifier and the first account, obtains a current bill provided by a payment system and forwarded by the terminal, and a second account used to log into the terminal. The server determines a second order corresponding to the current bill, associates the current bill with the second order when a virtual article identifier and an account in the second order are the same as the second virtual article identifier and the second account; and sends a virtual article corresponding to the second virtual article identifier to the second account.

Abstract: A thermosetting resin composition. The composition comprises thermosetting resin, a cross-linking agent, accelerator, and a porogen. The porogen is a porogen capable of being dissolved in an organic solvent. The organic solvent is an organic solvent capable of dissolving the thermosetting resin. A mode of directly adding the dissolvable porogen to a resin system is used, tiny pores that are uniform in pore diameter can be evenly distributed in resin matrix by means of a simple process at low cost, and the high-performance composition having a low dielectric constant and low dielectric loss is obtained; the method has good applicability to a great number of resin systems; because the pore size in the system reaches a nanometer grade, performance of the final system, such as mechanical strength, thermal performance and water absorption rate, is not sacrificed.

Abstract: A light emitting device includes: a substrate; an n layer; an active light emitting region having a light emitting side; a p layer; a reflector opposite the light emitting side; and a plurality of microchannels configured to optically couple the active light emitting region with the reflector.

Abstract: An ultraviolet semiconductor light emitting device includes: a light-emitting epitaxial layer including an n-type semiconductor layer, a light-emitting layer, and a p-type semiconductor layer; a tunnel junction at a non-light-emitting surface of the light-emitting epitaxial layer and having a patterned structure with openings to expose the light-emitting epitaxial layer; an optical phase matching layer over a surface layer of the light-emitting epitaxial layer and transmissive of UV light; and a reflecting layer covering the entire tunneling junction and the optical phase matching layer. A patterned structure is provided over the tunnel junction for full-angle light reflection. Part of the tunneling junction forms ohmic contact with the low work function reflecting metal. The patterned distribution design can effectively reduce the ohmic contact resistance.

Abstract: An ultraviolet semiconductor light emitting device includes: a light-emitting epitaxial layer including an n-type semiconductor layer, a light-emitting layer, and a p-type semiconductor layer; a tunnel junction at a non-light-emitting surface of the light-emitting epitaxial layer and having a patterned structure with openings to expose the light-emitting epitaxial layer; an optical phase matching layer over a surface layer of the light-emitting epitaxial layer and transmissive of UV light; and a reflecting layer covering the entire tunneling junction and the optical phase matching layer. A patterned structure is provided over the tunnel junction for full-angle light reflection. Part of the tunneling junction forms ohmic contact with the low work function reflecting metal. The patterned distribution design can effectively reduce the ohmic contact resistance.

Abstract: A light emitting device includes: a substrate; an n layer; an active light emitting region having a light emitting side; a p layer; a reflector opposite the light emitting side; and a plurality of microchannels configured to optically couple the active light emitting region with the reflector.

Abstract: A light emitting device includes: a substrate; an n layer; an active light emitting region, a p layer; and a support portion configured to provide both mechanical support and improve light transmission disposed over a light emitting side of the device.

Abstract: A light emitting device includes: a substrate; an n layer; an active light emitting region, a p layer; and a support portion configured to provide both mechanical support and improve light transmission disposed over a light emitting side of the device.