Abstract: The present disclosure provides a stapler, including a shell, an ejector plate pin, a cartridge pin, an anvil pin, an unlocking pin, an ejector plate ring, a cartridge ring and an anvil ring, where the cartridge pin is between the ejector plate pin and the anvil pin; the ejector plate ring, the cartridge ring and the anvil ring all include a first half ring and a second half ring; hinged ends of the first half rings and the second half rings are rotatably connected, and fixed ends of the second half rings of the ejector plate ring, the cartridge ring and the anvil ring are connected to the front ends of the ejector plate pin, the cartridge pin and the anvil pin, respectively. The present disclosure adopts a brand-new concept of eversion anastomosis, and ensures the smoothness of a lumen after anastomosis.

Abstract: Some embodiments provide novel methods for performing services for machines operating in one or more datacenters. For instance, for a group of related guest machines (e.g., a group of tenant machines), some embodiments define two different forwarding planes: (I) a guest forwarding plane and (2) a service forwarding plane. The guest forwarding plane connects to the machines in the group and performs L2 and/or L3 forwarding for these machines. The service forwarding plane (1) connects to the service nodes that perform services on data messages sent to and from these machines, and (2) forwards these data messages to the service nodes. In some embodiments, the guest machines do not connect directly with the service forwarding plane.

Abstract: Some embodiments provide a method for configuring a gateway machine in a datacenter. The method receives a definition of a logical network for implementation in the datacenter. The logical network includes at least one logical switch to which logical network endpoints attach and a logical router for handling data traffic between the logical network endpoints in the datacenter and an external network. The method receives configuration data attaching a third-party service to at least one interface of the logical router via an additional logical switch designated for service attachments. The third-party service is for performing non-forwarding processing on the data traffic between the logical network endpoints and the external network. The method configures the gateway machine in the datacenter to implement the logical router and redirect at least a subset of the data traffic between the logical network endpoints and the external network to the attached third-party service.

Abstract: Some embodiments provide a method for configuring a gateway machine in a datacenter. The method receives a definition of a logical network for implementation in the datacenter. The logical network includes at least one logical switch to which logical network endpoints attach and a logical router for handling data traffic between the logical network endpoints in the datacenter and an external network. The method receives configuration data attaching a third-party service to at least one interface of the logical router via an additional logical switch designated for service attachments. The third-party service is for performing non-forwarding processing on the data traffic between the logical network endpoints and the external network. The method configures the gateway machine in the datacenter to implement the logical router and redirect at least a subset of the data traffic between the logical network endpoints and the external network to the attached third-party service.

Abstract: Disclosed is a multi-channel early warning system for real-time monitoring of meteorological data, relates to the field of data monitoring technology, and comprises a meteorological data acquisition module, a meteorological data processing module, a terrain analysis module, a UAV deployment module, a ground situation acquisition module, an emergency degree analysis module, an early warning terminal, and a database. Data acquisition of a disaster-affected site is performed using a UAV. The UAV has the characteristics of being flexible and fast, and can be quickly deployed in a disaster-affected region to monitor the ground situation in real time, comprehensively assessing the impact of meteorological disasters.

Abstract: A method and an apparatus for updating a programmable data plane at runtime are provided. The method includes: splitting, based on distributed on-demand parsers of the data plane, a parsing graph into parsing sub-graphs, and distributing each parsing sub-graph to a respective physical stage in a virtual pipeline of the data plane; adjusting, based on template-based processors and the virtual pipeline, an order between any two template-based processors by configuring an interconnection network; disaggregating and pooling, based on a decoupled resource pool of the data plane, flow table resources of each physical stage, and updating a flow table at runtime; and suspending, based on a fast update controller of the data plane, packet processing prior to a to-be-updated template-based processor, and configuring or deleting the template-based processor from the pipeline when the template-based processor has no packet.

Abstract: A collaborative scheduling method for high-rise elevators based on Internet of Things is provided. The method includes: obtaining the number of people carried at the current moment of each elevator in the elevator group, the target distance corresponding to the current moment of each elevator, and the number of people waiting at the current moment of each floor; predicting the number of people waiting for the going up and the number of people waiting for the going down at the current moment of each floor based on the monitoring video data of the elevator door every day in the preset historical days, and constructing the corresponding feature vectors of each elevator at the current moment and the corresponding feature vectors of the skyscraper at the current moment, and then obtaining the corresponding state vectors at the current moment, controlling each elevator based on state vector and a reinforcement learning network.

Abstract: A method and an apparatus for updating a programmable data plane at runtime are provided. The method includes: splitting, based on distributed on-demand parsers of the data plane, a parsing graph into parsing sub-graphs, and distributing each parsing sub-graph to a respective physical stage in a virtual pipeline of the data plane; adjusting, based on template-based processors and the virtual pipeline, an order between any two template-based processors by configuring an interconnection network; disaggregating and pooling, based on a decoupled resource pool of the data plane, flow table resources of each physical stage, and updating a flow table at runtime; and suspending, based on a fast update controller of the data plane, packet processing prior to a to-be-updated template-based processor, and configuring or deleting the template-based processor from the pipeline when the template-based processor has no packet.

Abstract: A collaborative scheduling method for high-rise elevators based on Internet of Things is provided. The method includes: obtaining the number of people carried at the current moment of each elevator in the elevator group, the target distance corresponding to the current moment of each elevator, and the number of people waiting at the current moment of each floor; predicting the number of people waiting for the going up and the number of people waiting for the going down at the current moment of each floor based on the monitoring video data of the elevator door every day in the preset historical days, and constructing the corresponding feature vectors of each elevator at the current moment and the corresponding feature vectors of the skyscraper at the current moment, and then obtaining the corresponding state vectors at the current moment, controlling each elevator based on state vector and ES-Reinforcement learning network.

Abstract: The present disclosure provides a stapler, including a shell, an ejector plate pin, a cartridge pin, an anvil pin, an unlocking pin, an ejector plate ring, a cartridge ring and an anvil ring, where the cartridge pin is between the ejector plate pin and the anvil pin; the ejector plate ring, the cartridge ring and the anvil ring all include a first half ring and a second half ring; hinged ends of the first half rings and the second half rings are rotatably connected, and fixed ends of the second half rings of the ejector plate ring, the cartridge ring and the anvil ring are connected to the front ends of the ejector plate pin, the cartridge pin and the anvil pin, respectively. The present disclosure adopts a brand-new concept of eversion anastomosis, and ensures the smoothness of a lumen after anastomosis.

Abstract: The present disclosure provides a method and device for preparing an artificial core for petroleum geological exploration. The method includes: step 1, establishing a relation curve between a median grain diameter of quartz sand and a permeability, determining a type and a usage amount of epoxy resin, and preparing a cementing agent according to a principle that the epoxy resin has a direct ratio with a specific surface; step 2, based on a method of controlling a core permeability, preparing benchmark sand with quartz sand of different grain sizes in a certain ratio, fabricating a low-permeability core by adjusting a ratio of the benchmark sand to fine sand, and fabricating a high-permeability core by adjusting a ratio of the benchmark sand to coarse sand; step 3, separately and proportionally weighing quartz sand of different grain diameters and putting them into a magnetic tray, manually mixing and agitating for later use.

Abstract: A method for preparing FDCA with furfural as a raw material includes (1) pretreatment of the furfural: subjecting the furfural and an alcohol compound to an acetalization reaction under catalysis of an acidic ion resin to obtain an acetal compound of the furfural with the alcohol compound; (2) under stirring, adding the acetal compound dropwise to a mixed liquid of an acylation reagent and an ionic liquid (IL) to allow a reaction for 1 h to 2 h, adding a catalyst to continue the reaction for 3 h to 5 h, and subjecting a resulting reaction system to a post-treatment to obtain 5-acylfurfural; and (3) mixing the 5-acylfurfural with hydrogen peroxide, adding a catalyst to allow an oxidation reaction, and after the oxidation reaction is completed, subjecting a product to washing and recrystallization to obtain a white crystal, which is the FDCA.

Abstract: A method for preparing FDCA with furfural as a raw material includes (1) pretreatment of the furfural: subjecting the furfural and an alcohol compound to an acetalization reaction under catalysis of an acidic ion resin to obtain an acetal compound of the furfural with the alcohol compound; (2) under stirring, adding the acetal compound dropwise to a mixed liquid of an acylation reagent and an ionic liquid (IL) to allow a reaction for 1 h to 2 h, adding a catalyst to continue the reaction for 3 h to 5 h, and subjecting a resulting reaction system to a post-treatment to obtain 5-acylfurfural; and (3) mixing the 5-acylfurfural with hydrogen peroxide, adding a catalyst to allow an oxidation reaction, and after the oxidation reaction is completed, subjecting a product to washing and recrystallization to obtain a white crystal, which is the FDCA.

Abstract: Disclosed is a system including a flow regulating system. The flow regulating system may assist in ensuring a selected pressure within an inlet volume. The flow regulator may be included in a shunt assembly.

Abstract: A valve assembly (10) configured to maintain fluid flow therethrough at a constant flow rate. The valve assembly (10) including a flexible flow control member (50) defining an inner fluid chamber (90) within the flexible flow control member (50) and an inlet opening (56) to the inner fluid chamber (90). An outer fluid chamber (92) is defined between the flexible flow control member (50) and an inner surface (74) of a valve housing (20). The flexible flow control member (50) is configured to flex inward and shrink the inner fluid chamber (90) in response to a pressure decrease in the inner fluid chamber (90) relative to the outer fluid chamber (92) resulting from an increase in an inlet flow rate to maintain an outlet flow rate from the valve assembly (10) at the constant flow rate.

Abstract: A system includes a flow regulating system. The flow regulating system may assist in ensuring a selected pressure within an inlet volume. A flow regulator may be included in a shunt assembly(10).

Abstract: A system includes a flow regulating system. The flow regulating system may assist in ensuring a selected pressure within an inlet volume. A flow regulator may be included in a shunt assembly (10).

Abstract: Disclosed is a system including a flow regulating system. The flow regulating system may assist in ensuring a selected pressure within an inlet volume. The flow regulator may be included in a shunt assembly.

Abstract: Some embodiments provide a method for configuring a gateway machine in a datacenter. The method receives a definition of a logical network for implementation in the datacenter. The logical network includes at least one logical switch to which logical network endpoints attach and a logical router for handling data traffic between the logical network endpoints in the datacenter and an external network. The method receives configuration data attaching a third-party service to at least one interface of the logical router via an additional logical switch designated for service attachments. The third-party service is for performing non-forwarding processing on the data traffic between the logical network endpoints and the external network. The method configures the gateway machine in the datacenter to implement the logical router and redirect at least a subset of the data traffic between the logical network endpoints and the external network to the attached third-party service.

Abstract: Some embodiments provide novel methods for performing services for machines operating in one or more datacenters. For instance, for a group of related guest machines (e.g., a group of tenant machines), some embodiments define two different forwarding planes: (1) a guest forwarding plane and (2) a service forwarding plane. The guest forwarding plane connects to the machines in the group and performs L2 and/or L3 forwarding for these machines. The service forwarding plane (1) connects to the service nodes that perform services on data messages sent to and from these machines, and (2) forwards these data messages to the service nodes. In some embodiments, the guest machines do not connect directly with the service forwarding plane. For instance, in some embodiments, each forwarding plane connects to a machine or service node through a port that receives data messages from, or supplies data messages to, the machine or service node.