Abstract: Guidance may be provided to users, at least in part, by graphic overlays on displays of ultrasound images. The guidance may assist users in acquiring images suitable for making hepato-renal index (HRI) measurements. In some examples, the guidance may assist the user in finding the proper imaging plane including a portion of the liver and kidney. In some examples, the guidance may further assist the user in proper placement of regions of interest within the image for calculating the HRI, such as at the same depth and appropriate portions of the liver and kidney. In some examples, one or more processors may analyze the image to ensure the quality is suitable for calculating the HRI.

Abstract: Disclosed is an integrated method for mineralizing and sequestrating carbon dioxide and filling goaf with fly ash, which relates to the engineering field of combination of fly ash and carbon dioxide recycling. The method includes: S1, selecting an area conducive to sequestration of the carbon dioxide; S2, building a stope overburden pressure calculation model in the selected area, to determine a key stratum of a stope and calculate a limit caving interval of an overlying stratum of the stope; S3, mining a coal seam of the stope, and filling the goaf, manufactured by mining the coal seam, with gangue in the coal seam; S4, fully stirring, by a stirring apparatus, the fly ash to form loose fly ash, outputting the loose fly ash to the goaf for filling, and determining an effective flow radius of the carbon dioxide by means of a built carbon dioxide seepage model; and S5, reasonably setting an interval of a vertical drilling well according to the effective flow radius of the carbon dioxide.

Abstract: The present disclosure discloses a reciprocating rock fracture friction-seepage characteristic test device and method. The test device includes an X-axis shear system, a Y-axis stress loading system, a Z-axis stress loading system, a servo oil source system, 5 a pore pressure loading system, and a host. The X-axis shear system includes an X-axis EDC controller, an upper shear box, a lower shear box, an X-axis left hydraulic cylinder, an X-axis right hydraulic cylinder, an X-axis left pressure head, an X-axis right pressure head, an X-axis left pressure sensor, an X-axis right pressure sensor, an X-axis displacement sensor, and an X-axis 10 displacement sensor. The pore pressure loading system includes an air cylinder, a pressure gauge, a pressure reducing valve, a fluid inlet pipeline, a fluid outlet pipeline, and a flowmeter.

Abstract: The present disclosure discloses a reciprocating rock fracture friction-seepage characteristic test device and method. The test device includes an X-axis shear system, a Y-axis stress loading system, a Z-axis stress loading system, a servo oil source system, 5 a pore pressure loading system, and a host. The X-axis shear system includes an X-axis EDC controller, an upper shear box, a lower shear box, an X-axis left hydraulic cylinder, an X-axis right hydraulic cylinder, an X-axis left pressure head, an X-axis right pressure head, an X-axis left pressure sensor, an X-axis right pressure sensor, an X-axis displacement sensor, and an X-axis 10 displacement sensor. The pore pressure loading system includes an air cylinder, a pressure gauge, a pressure reducing valve, a fluid inlet pipeline, a fluid outlet pipeline, and a flowmeter.

Abstract: The present invention discloses a formate dehydrogenase mutant with improved enzyme activity and stability and a construction method thereof, which belongs to the technical field of genetic engineering. The mutant of the present invention is obtained by mutating alanine at a 10th site to cysteine based on the amino acid shown in SEQ ID NO. 2. The specific enzyme activity of the mutant enzyme obtained by the present invention is improved by 1.3 times compared with that before the mutation, a half-life period (t1/2) at 60° C. is increased by 6.8 times compared with that in the mutation period, the copper ion tolerance is increased by 30 times compared with that before the mutation, and when pH is 4, the stability is improved by 2.0 times, and the catalytic efficiency is increased by 1.4 times.

Abstract: The present invention discloses a single-cell factory for efficiently synthesizing ?-aminobutyric acid and construction and application thereof, which belong to the technical field of microorganisms. The present invention expresses an L-threonine deaminase gene, an L-amino acid dehydrogenase gene and a dehydrogenase gene for providing cofactor NADH cycle in tandem to construct a recombinant Escherichia coli single-cell factory which is used for efficiently synthesizing ?-aminobutyric acid. The expression level of the L-threonine deaminase is optimized and controlled by an RBS sequence, so that the problem of transformation inhibition caused by the rapid accumulation of an intermediate product ketobutyric acid is solved, moreover, the expression level of the dehydrogenase for providing cofactor NADH cycle is optimized and controlled by a promoter and an RBS sequence, consequently, the NADH regeneration rate is increased, and ultimately, yield is increased.

Abstract: This application relates to the field of communications technologies, and discloses a lawful interception method, apparatus, and system for performing lawful interception on local offloaded service data of user equipment. The method includes: receiving, by a centralized gateway device, an interception instruction sent by a lawful interception gateway device, where the interception instruction carries an identifier of to-be-intercepted user equipment; sending, by the centralized gateway device to a remote gateway device, an offloading disabling instruction, where the offloading disabling instruction instructs the remote gateway device to disable a local offloading function of the user equipment; and receiving, by the centralized gateway device, service data of the user equipment sent by the remote gateway device, and reporting the service data to a lawful interception center.

Abstract: The present invention discloses a single-cell factory for efficiently synthesizing ?-aminobutyric acid and construction and application thereof, which belong to the technical field of microorganisms. The present invention expresses an L-threonine deaminase gene, an L-amino acid dehydrogenase gene and a dehydrogenase gene for providing cofactor NADH cycle in tandem to construct a recombinant Escherichia coli single-cell factory which is used for efficiently synthesizing ?-aminobutyric acid. The expression level of the L-threonine deaminase is optimized and controlled by an RBS sequence, so that the problem of transformation inhibition caused by the rapid accumulation of an intermediate product ketobutyric acid is solved, moreover, the expression level of the dehydrogenase for providing cofactor NADH cycle is optimized and controlled by a promoter and an RBS sequence, consequently, the NADH regeneration rate is increased, and ultimately, yield is increased.

Abstract: The present invention discloses a formate dehydrogenase mutant with improved enzyme activity and stability and a construction method thereof, which belongs to the technical field of genetic engineering. The mutant of the present invention is obtained by mutating alanine at a 10th site to cysteine based on the amino acid shown in SEQ ID NO. 2. The specific enzyme activity of the mutant enzyme obtained by the present invention is improved by 1.3 times compared with that before the mutation, a half-life period (t1/2) at 60° C. is increased by 6.8 times compared with that in the mutation period, the copper ion tolerance is increased by 30 times compared with that before the mutation, and when pH is 4, the stability is improved by 2.0 times, and the catalytic efficiency is increased by 1.4 times.

Abstract: Embodiments of the present invention relate to a policy control method and device. The method includes: receiving, by a PCRF, NAT entry information sent by a NAT device; obtaining, by the PCRF, a first PCC rule according to the NAT entry information, where the first PCC rule is a PCC rule including an IP address to be translated by the NAT device; and sending, by the PCRF, the first PCC rule to a gateway device, so that the gateway device executes the first PCC rule. According to the embodiments of the present invention, it can be ensured that the gateway device correctly executes the PCC rule.

Abstract: Embodiments of the present invention relate to a policy control method and device. The method includes: receiving, by a PCRF, NAT entry information sent by a NAT device; obtaining, by the PCRF, a first PCC rule according to the NAT entry information, where the first PCC rule is a PCC rule including an IP address to be translated by the NAT device; and sending, by the PCRF, the first PCC rule to a gateway device, so that the gateway device executes the first PCC rule. According to the embodiments of the present invention, it can be ensured that the gateway device correctly executes the PCC rule.

Abstract: Embodiments of the present invention relate to a policy control method and device. The method includes: receiving, by a PCRF, NAT entry information sent by a NAT device; obtaining, by the PCRF, a first PCC rule according to the NAT entry information, where the first PCC rule is a PCC rule including an IP address to be translated by the NAT device; and sending, by the PCRF, the first PCC rule to a gateway device, so that the gateway device executes the first PCC rule. According to the embodiments of the present invention, it can be ensured that the gateway device correctly executes the PCC rule.

Abstract: Embodiments of the present invention provide a data transmission method, a network element device and a communication system. The technical solutions provided in the embodiments of the present invention can encapsulate some services having a high packet error resilient into UDP-Lite protocol packets, which, compared with the prior art, omits check on loads of the messages, thereby significantly improving data transmission efficiency.

Abstract: The present disclosure discloses a method for redirecting data by using a service proxy, including: forwarding, according to a data storage path carried in a received first data request message sent by a client, the first data request message to a data server; receiving a redirection response message sent by the data server, where the redirection response message carries a new path for storing requested data; sending, according to the new path for storing the requested data, a second data request message to a data server that is indicated by the new path; receiving data that is requested by the client and is sent by the data server that is indicated by the new path, and sending the requested data to the client. According to the method data acquiring efficiency is improved and a network delay is reduced.

Abstract: Embodiments of the present invention relate to an address processing method, a gateway device, and an access point. An access point sends a request message to a gateway device. The access point obtains an address of an access controller from the gateway device. The address of the access controller is an address of an access controller selected by the gateway device. The access point establishes a CAPWAP tunnel with the access controller selected by the gateway device.

Abstract: Embodiments of the present invention provide a data transmission method, a network element device and a communication system. The technical solutions provided in the embodiments of the present invention can encapsulate some services having a high packet error resilient into UDP-Lite protocol packets, which, compared with the prior art, omits check on loads of the messages, thereby significantly improving data transmission efficiency.

Abstract: Embodiments of the present invention relate to an address processing method, a gateway device, and an access point. An access point sends a request message to a gateway device. The access point obtains an address of an access controller from the gateway device. The address of the access controller is an address of an access controller selected by the gateway device. The access point establishes a CAPWAP tunnel with the access controller selected by the gateway device.

Abstract: Embodiments of the present invention relate to a policy control method and device. The method includes: receiving, by a PCRF, NAT entry information sent by a NAT device; obtaining, by the PCRF, a first PCC rule according to the NAT entry information, where the first PCC rule is a PCC rule including an IP address to be translated by the NAT device; and sending, by the PCRF, the first PCC rule to a gateway device, so that the gateway device executes the first PCC rule. According to the embodiments of the present invention, it can be ensured that the gateway device correctly executes the PCC rule.

Abstract: A carrier grade address translation (CGN) entity based data transmission method, a CGN entity, a gateway, and a system are provided. The CGN entity based data transmission method includes determining, by a CGN entity, that data is transmitted between a first terminal of a first gateway and a second terminal of a second gateway. The method further includes sending, by the CGN entity, IP addresses of the first terminal before and after NAT network address translation, IP addresses of the second terminal before and after NAT, and information about a tunnel between the CGN entity and the first gateway to the second gateway, so that the second gateway simulates the CGN entity to forward the data, sent by the second terminal, to the first gateway. Resource consumption of the CGN entity is reduced and transmission efficiency of interworking terminals is improved.