Abstract: Provided is a cold-rolled high-strength steel having a tensile strength of not less than 1500 MPa and an excellent formability, the chemical elements thereof having the following mass percent ratios: 0.25%-0.40% of C, 1.50%-2.50% of Si, 2.0%-3.0% of Mn, 0.03%-0.06% of Al, P?0.02%, S?0.01%, N?0.01% and at least one of 0.1%-1.0% of Cr and 0.1%-0.5% of Mo, with the balance being Fe and other unavoidable impurities. The microstructure of the cold-rolled high-strength steel has 5%-20% of residual austenite and 70%-90% of martensite, and the carbon concentration ratio of the residual austenite to the martensite is greater than 3.5 and less than 15. The cold-rolled high-strength steel sheet has a high strength and an excellent formability through a rational ingredient design and microstructure control.

Abstract: A power semiconductor device includes a diode part disposed in a first region of a substrate, a junction field effect transistor (JFET) part disposed in a second region adjacent to the first region of the substrate, an anode terminal disposed on the first region of the substrate, and a cathode terminal disposed on the second region of the substrate. The diode part includes a p-type body region disposed inside the substrate and electrically connected with the anode terminal, an n-type well disposed on one side of the p-type body region and having a first impurity concentration, and a first n-type semiconductor region disposed below the p-type body region and having a second impurity concentration which is lower than the first impurity concentration.

Abstract: A cold-rolled steel plate (1) and a manufacturing method therefor. The chemical composition of the steel plate (1) in percentage by weight is: C 0.15-0.25%, Si 1.50-2.50%, Mn 2.00-3.00%, P?0.02%, S?0.01%, Al 0.03-0.06%, N?0.01%, with the balance being Fe and impurities. The surface layer has an inner oxide layer (2) with a thickness of 1-5 ?m, and there is no enrichment of Si or Mn on the surface. The steel plate (1) has good phosphating performance and formability, with a tensile strength of ?1180 MPa and an elongation of ?14%, and has a complex-phase structure of ferrite, martensite, and retained austenite, the content of the retained austenite being not lower than 5%. A dew point is at ?25° C. to 10° C. in continuous annealing, such that external oxidation transitions to internal oxidation.

Abstract: A cold-rolled high-strength steel plate having excellent phosphating performance and formability and a manufacturing method therefor. The chemical composition of the steel plate is, in percentage by weight, C 0.01-0.20%, Si 1.50-2.50%, Mn 1.50-2.50%, P?0.02%, S?0.02%, Al 0.03-0.06%, N?0.01%, the remainder being Fe and impurities. The surface layer of the steel plate has an inner oxide layer with a thickness of 1-5 ?m, and there is no enrichment of Si and Mn on the surface of the steel plate. The steel plate has good phosphating performance and formability, with a tensile strength of ?980 MPa and an elongation of ?20%. The structure at the room temperature contains retained austenite, ferrite, and martensite and/or bainite.

Abstract: A high-formability and super-strength cold-rolled steel sheet and a manufacturing method thereof. The weight percentage of its components is: C 0.15-0.25%, Si 1.00-2.00%, Mn 1.50-3.00%, P?0.015%, S?0.012%, Al 0.03-0.06%, N?0.008%, and the rest are Fe and inevitable impurities. The manufacturing method comprises the following steps: 1) smelting and casting; 2) heating to 1170˜1230° C. and performing thermal insulation; 3) performing hot rolling, the finish rolling temperature being 880±30° C., and coiling at 550˜650° C.; and 4) performing acid washing, cold rolling, and annealing, the cold rolling reduction being 40-60%, annealing at 860-920° C., and performing slow cooling to 690-750° C. with the cooling rate of 3˜10° C./s; performing rapid cooling at 240˜320° C., with the cooling speed ?50° C./s, then heating to 360˜460° C., and performing thermal insulation for 100˜500 s to cool to the room temperature at last.

Abstract: A data storage method and a physical server are provided. M virtual machines are deployed on a plurality of physical servers. The M virtual machines are respectively deployed as M data nodes in a distributed storage system. A metadata node in the distributed storage system receives a data storage request of a client, and determines identifiers of N virtual machines from the M virtual machines based on stored grouping information. The grouping information records a mapping relationship between a plurality of anti-affinity groups and identifiers of the M virtual machines.

Abstract: The present disclosure discloses a WIFI antenna device, the WIFI antenna device includes a carrier, a grounding portion, a first radiation portion, a second radiation portion and a third radiation portion which all are provided on the carrier. The first radiation portion, the second radiation portion and the third radiation portion are coupled to the grounding portion. The coupling portion couples an electrical signal to the first radiation portion, the second radiation portion and the third radiation portion. The first radiation portion, the second radiation portion and the third radiation portion convert the electrical signal into the radiation signal. The first radiation portion determines a low frequency resonance point of a radiation signal emitted by the WIFI antenna device. The second radiation portion determines a first high frequency resonance point of the radiation signal. The third radiation portion determines a second high frequency resonance point of the radiation signal.

Abstract: An information determining method and apparatus are provided.

Abstract: A high-formability, super-high-strength, hot-dip galvanized steel plate, the chemical composition of which comprises, based on weight percentage, C: 0.15-0.25 wt %, Si: 1.00-2.00 wt %, Mn: 1.50-3.00 wt %, P?0.015 wt %, S?0.012 wt %, Al: 0.03-0.06 wt %, N?0.008 wt %, and the balance of iron and unavoidable impurities. The room temperature structure of the steel plate comprises 10-30% ferrite, 60-80% martensite and 5-15% residual austenite. The steel plate has a yield strength of 600-900 MPa, a tensile strength of 980-1200 MPa, and an elongation of 15-22%. Through an appropriate composition design, a super-high-strength, cold rolled, hot-dip galvanized steel plate is manufactured by continuous annealing, wherein no expensive alloy elements are added; instead, remarkable increase of strength along with good plasticity can be realized just by appropriate augment of Si, Mn contents in combination with suitable processes of annealing and furnace atmosphere control.

Abstract: The present invention discloses a superstrength cold rolled weathering steel sheet, wherein the weight percentage of the chemical elements thereof are as follows: C: 0.05˜0.16%; Mn: 1.00˜2.20%; Al: 0.02˜0.06%; Cu: 0.20˜0.40%; Cr: 0.40˜0.60%; Ti: 0.015˜0.035%; P: less than 0.03%; and C+Mn/16 is more than 0.19% and less than 0.23%; the remainders thereof being Fe and other unavoidable impurities. The present invention also discloses a method of manufacturing said superstrength cold rolled weathering steel sheet, comprising the following stages: smelting, heating and preservation, hot rolling, coiling, pickling, cold rolling, continuous annealing and skin passing. The advantages of the superstrength cold rolled weathering steel sheet and the method of manufacturing the same are: high strength, i.e.

Abstract: An input output (IO) bandwidth control method, an IO access request processing method, an apparatus, and a system relate to the field of storage technologies, where the IO bandwidth control method, executed by a name node, includes determining an IO bandwidth of each data node in at least one data node and an IO bandwidth of a first tenant, and instructing the at least one data node to allocate the at least one IO bandwidth to the first tenant based on the IO bandwidth of each data node and the IO bandwidth of the first tenant, where the at least one IO bandwidth is in a one-to-one correspondence with the at least one data node, and each IO bandwidth in the at least one IO bandwidth is greater than 0 and is less than or equal to an IO bandwidth of a corresponding data node.

Abstract: According to methods, apparatus and AI servers for determining an AI behavior, a protocol-requesting command sent by an application logic server can be received. The protocol-requesting command can contain an application identifier, a notification message, and current environment data. From a plurality of preset AI systems, an AI system corresponding to the application identifier can be found. The AI system can be formed by a preset plurality of components that include one or more classifying components. From the AI system, a classifying component corresponding to the notification message can be found. The classifying component can be mounted with at least one behavior component. From the classifying component corresponding to the notification message, a behavior component matching the current environment data can be obtained. An AI behavior can be determined based on the obtained behavior component matching the current environment data.

Abstract: Methods, apparatus and artificial intelligence (AI) editors for implementing an AI behavior are provided herein. In an exemplary method, an AI behavior configuration file can be obtained. The AI behavior configuration file can be configured using at least one preset component, and the AI behavior configuration file matches logic of a preset AI behavior. It can be tested whether a result of running the AI behavior configuration file reaches a preset effect. When the result of running the AI behavior configuration file reaches the preset effect, the preset AI behavior can be implemented according to the AI behavior configuration file.

Abstract: The present disclosure discloses a WIFI antenna device, the WIFI antenna device includes a carrier, a grounding portion, a first radiation portion, a second radiation portion and a third radiation portion which all are provided on the carrier. The first radiation portion, the second radiation portion and the third radiation portion are coupled to the grounding portion. The coupling portion couples an electrical signal to the first radiation portion, the second radiation portion and the third radiation portion. The first radiation portion, the second radiation portion and the third radiation portion convert the electrical signal into the radiation signal. The first radiation portion determines a low frequency resonance point of a radiation signal emitted by the WIFI antenna device. The second radiation portion determines a first high frequency resonance point of the radiation signal. The third radiation portion determines a second high frequency resonance point of the radiation signal.

Abstract: An antenna device comprises a carrier, a first radiation portion, a second radiation portion and a coupling portion. The first radiation portion, the second radiation portion and the coupling portion are provided on the carrier. The second radiation portion electrically connects with the first radiation portion. The first radiation portion and the second radiation portion share a shared part, the shared part is directly connected to a reference grounding. The coupling portion capacitively couples an electrical signal to the first radiation portion and the second radiation portion. The first radiation portion and the second radiation portion convert the electrical signal into a radiation signal emitted by the antenna device.

Abstract: The present disclosure relates to a type of electronic device, comprising an internal circuit and a surface structure. The internal circuit comprises a circuit board, a feed portion, and a coupler. The surface structure comprises a rectangular display, a metal casing, an elongated metal plate, a connection element, a resonant element, and a dielectric material. The circuit board is provided with a reference plane and a transceiver installed thereon. The feed portion is electrically connected to the transceiver. The coupler is electrically connected to the feed portion. The rectangular display is located at the top portion of the electronic device. The metal casing is electrically connected to the reference plane of the circuit board, forming an integrated reference ground. The elongated metal plate is located on one side surface of the electronic device and is separated from the edge of the metal casing by a gap.

Abstract: A method of data transmission includes establishing a buffer for TCP/IP data packets, receiving and buffering the TCP/IP data packets including TCP payloads and TCP ACKs. A queue of the buffered TCP/IP data is adjusted in accordance with header information of the TCP/IP data packets. The buffered TCP/IP data packets are transmitted sequentially. The method significantly reduces the TCP ACKs, which are transmitted with priority, thereby reducing the round-trip time delay, and improving the data transmission efficiency. An apparatus configured to perform this method is also described.

Abstract: A method, a system, and an apparatus for creating a virtual machine. The method includes receiving a virtual machine creation request to create a plurality of virtual machines; dividing the plurality of virtual machines into a plurality of virtual machine groups; determining a home physical rack for each virtual machine group, where one virtual machine group corresponds to one home physical rack; and creating each virtual machine group on the home physical rack of each virtual machine group. Because each virtual machine group is created on a home physical rack to which each virtual machine group belongs, each virtual machine group is equivalent to one physical rack.

Abstract: The present invention discloses a superstrength cold rolled weathering steel sheet, wherein the weight percentage of the chemical elements thereof are as follows: C: 0.05˜0.16%; Mn: 1.00˜2.20%; Al: 0.02˜0.06%; Cu: 0.20˜0.40%; Cr: 0.40˜0.60%; Ti: 0.015˜0.035%; P: less than 0.03%; and C+Mn/16 is more than 0.19% and less than 0.23%; the remainders thereof being Fe and other unavoidable impurities. The present invention also discloses a method of manufacturing said superstrength cold rolled weathering steel sheet, comprising the following stages: smelting, heating and preservation, hot rolling, coiling, pickling, cold rolling, continuous annealing and skin passing. The advantages of the superstrength cold rolled weathering steel sheet and the method of manufacturing the same are: high strength, i.e.

Abstract: A high-formability, super-high-strength, hot-dip galvanized steel plate, the chemical composition of which comprises, based on weight percentage, C: 0.15-0.25 wt %, Si: 1.00-2.00 wt %, Mn: 1.50-3.00 wt %, P?0.015 wt %, S?0.012 wt %, Al: 0.03-0.06 wt %, N?0.008 wt %, and the balance of iron and unavoidable impurities. The room temperature structure of the steel plate comprises 10-30% ferrite, 60-80% martensite and 5-15% residual austenite. The steel plate has a yield strength of 600-900 MPa, a tensile strength of 980-1200 MPa, and an elongation of 15-22%. Through an appropriate composition design, a super-high-strength, cold rolled, hot-dip galvanized steel plate is manufactured by continuous annealing, wherein no expensive alloy elements are added; instead, remarkable increase of strength along with good plasticity can be realized just by appropriate augment of Si, Mn contents in combination with suitable processes of annealing and furnace atmosphere control.