Abstract: Additive manufacturing (AM) methods and devices for high-melting-point materials are disclosed. In an embodiment, an additive manufacturing method includes the following steps. (S1) Slicing a three-dimensional computer-aided design model of a workpiece into multiple layers according to shape, thickness, and size accuracy requirements, and obtaining data of the multiple layers. (S2) Planning a forming path according to the data of the multiple layers and generating computer numerical control (CNC) codes for forming the multiple layers. (S3) Obtaining a formed part by preheating a substrate, performing a layer-by-layer spraying deposition by a cold spraying method, and heating a spray area to a temperature until the spraying deposition of all sliced layers is completed. (S4) Subjecting the formed part to a surface modification treatment by a laser shock peening method.

Abstract: A composite equal additive manufacturing method: S1, obtaining molten metal by using a metal smelting device; S2, first, storing inflow molten metal in an intermediate container, and then transferring the molten metal into a crystallizer; S3, cooling the molten metal to a solid-liquid mixed state by using the crystallizer, and enabling a high-temperature blank body with a required section to flow out from an outlet of the crystallizer; S4, arranging plastic forming tools at a bottom of the outlet of the crystallizer, and performing plastic forming on the outflow high-temperature blank body; S5, fixing a lower end of a part after the plastic forming and slowly descending the part by a chuck; S6, machining the part by using point forming machines, and synchronously controlling the machining temperature of the part; and S7, descending the chuck to an appropriate position, and taking the formed part out from the machine frame.

Abstract: Wire arc additive manufacturing-spinning combined machining device and method are provided. The machining device includes a spinning mechanism and a fused deposition modeling mechanism. The spinning mechanism includes a machine tool and a spinning head. The spinning head is installed on the machine tool by a main shaft, and the main shaft is configured to drive the spinning head to rotate to achieve the movement in three vertical directions. The spinning head includes a spinning base and balls. Each of the balls is installed in a corresponding one of arc grooves at a bottom of the spinning base. The fused deposition modeling mechanism includes a moving track, a robot and a heat source generator. The arc moving track is arranged around the machine tool in a surrounding mode. The robot is movably installed on the moving track. The heat source generator is installed at a tail end of the robot.

Abstract: A composite equal additive manufacturing method: S1, obtaining molten metal by using a metal smelting device; S2, first, storing inflow molten metal in an intermediate container, and then transferring the molten metal into a crystallizer; S3, cooling the molten metal to a solid-liquid mixed state by using the crystallizer, and enabling a high-temperature blank body with a required section to flow out from an outlet of the crystallizer; S4, arranging plastic forming tools at a bottom of the outlet of the crystallizer, and performing plastic forming on the outflow high-temperature blank body; S5, fixing a lower end of a part after the plastic forming and slowly descending the part by a chuck; S6, machining the part by using point forming machines, and synchronously controlling the machining temperature of the part; and S7, descending the chuck to an appropriate position, and taking the formed part out from the machine frame.

Abstract: A welding bead modeling method for wire-arc additive manufacturing, a device therefor and a system therefor including using a dynamic parameter method, and using different welding process parameters in the same welding bead in the a wire-arc additive manufacturing process to obtain a welding bead with synchronous and dynamic changes in profile along with the dynamic changes of the welding process parameters. The method further comprising using a line laser sensor for scanning to obtain the segmented profile of the processed welding bead, and corresponding each welding bead profile to the welding process parameters one by one to train the neural network as training data, so as to obtain a welding bead modeling model capable of obtaining the corresponding welding bead profile according to the input welding process parameters.

Abstract: Additive manufacturing (AM) methods and devices for high-melting-point materials are disclosed. In an embodiment, an additive manufacturing method includes the following steps. (S1) Slicing a three-dimensional computer-aided design model of a workpiece into multiple layers according to shape, thickness, and size accuracy requirements, and obtaining data of the multiple layers. (S2) Planning a forming path according to the data of the multiple layers and generating computer numerical control (CNC) codes for forming the multiple layers. (S3) Obtaining a formed part by preheating a substrate, performing a layer-by-layer spraying deposition by a cold spraying method, and heating a spray area to a temperature until the spraying deposition of all sliced layers is completed. (S4) Subjecting the formed part to a surface modification treatment by a laser shock peening method.

Abstract: A system and a method are disclosed for detecting and regulating a microstructure online with an electromagnetic assistance. The system comprises a substrate, and a forming device, a detecting device and a regulating device located above the substrate, the detecting device is connected with the regulating device comprising an electromagnetic shock regulating unit and an electromagnetic stirring regulating unit; a workpiece may be formed layer by layer on the substrate through the forming device, the detecting device performs a real-time detection for the microstructure in a formed area, and transmits a detection result to the regulating device, and according to the detection result, the electromagnetic shock regulating unit may perform the electromagnetic shock on a newly formed fused micro area, or the electromagnetic stirring regulating unit may perform the electromagnetic stirring on a molten pool to regulate the microstructure of the workpiece.

Abstract: The present disclosure discloses a rocket braked by air recovered by turbines and a deceleration method for recovery of the same. The rocket includes a first-stage rocket and a second-stage rocket, where the first-stage rocket includes a first-stage rocket fuselage sequentially provided with a movable baffle, an oxidizer chamber, a fuel chamber, a combustion chamber, and an ejection opening from top to bottom; after the first-stage rocket is separated from the second-stage rocket, the movable baffle of the first-stage rocket is opened to generate resistance for deceleration and adjustment on a descending posture; an air inlet in a turbine is exposed at the same time, and the turbine is turned on; and after a flameout of an engine, stored compressed air is downwards ejected from the bottom of the first-stage rocket to generate thrust for deceleration, so as to achieve safe landing of the rocket.

Abstract: The present invention relates to a preparation method for a traditional Chinese medicine drop pill and a traditional Chinese medicine micro drop pill prepared by using the method, and in particular, the present invention relates to a micro drop pill preparation method with high drug-loading capacity, simple preparation process and high production rate and a micro drop pill prepared by using the method. Specially, The drop pill preparation method used comprises the following steps: (1) material melting step: heat melting a medicine and a drop pill matrix to obtain a molten medicine liquid; (2) dropping step: delivering the molten medicine liquid to a dripper, and acquiring medicine drops of the molten medicine liquid by means of vibration dropping; and, (3) condensation step: cooling the medicine drops with a cooling gas to obtain micro drop pills.

Abstract: A permission management method for a trustworthiness mechanism of a big-data blockchain includes: dividing system resources into user-role resources, data resources and node resources; acquiring a current role of a user based on a RBAC module in a R-TBAC model, and acquiring an operating-permission-value range of the current role; monitoring an operating behavior of the user in an operating system, and, based on the RBAC module and according to the operating-permission-value range of the current role, detecting whether the current role of the user has a role-operating permission for the operation; detecting a task-operating permission of the contract instance or task instance based on a TBAC module in the R-TBAC model during running of the contract instance or task instance; and completing, by the user, the operation in an authorized operating permission range based on the R-TBAC model.

Abstract: Additive manufacturing (AM) methods and devices for high-melting-point materials are disclosed. In an embodiment, an additive manufacturing method includes the following steps. (S1) Slicing a three-dimensional computer-aided design model of a workpiece into multiple layers according to shape, thickness, and size accuracy requirements, and obtaining data of the multiple layers. (S2) Planning a forming path according to the data of the multiple layers and generating computer numerical control (CNC) codes for forming the multiple layers. (S3) Obtaining a formed part by preheating a substrate, performing a layer-by-layer spraying deposition by a cold spraying method, and heating a spray area to a temperature until the spraying deposition of all sliced layers is completed. (S4) Subjecting the formed part to a surface modification treatment by a laser shock peening method.

Abstract: The present invention discloses a thin-film transistor structure with a three-dimensional fin-shape channel and a preparation method thereof. The preparation method includes following steps: (a) depositing and etching a bottom gate electrode on a substrate; (b) depositing a bottom dielectric layer at an upper part of a structure obtained from the step (a), and sequentially depositing a semiconductor film on the bottom dielectric layer; (c) etching the semiconductor film to obtain a fin-type channel; (d) respectively depositing an ohmic contact layer, a source electrode and a drain electrode on the semiconductor film located at both sides of the fin-shape channel, and etching; (e) depositing a top dielectric layer and a top gate electrode at an upper part of a structure obtained from the step (d); and (f) etching the top gate electrode, an completing a preparation of a thin-film transistor with a dual-gate three-dimensional fin-shape channel.

Abstract: The present invention relates to a preparation method for a traditional Chinese medicine drop pill and a traditional Chinese medicine micro drop pill prepared by using the method, and in particular, the present invention relates to a micro drop pill preparation method with high drug-loading capacity, simple preparation process and high production rate and a micro drop pill prepared by using the method. Specially, The drop pill preparation method used comprises the following steps: (1) material melting step: heat melting a medicine and a drop pill matrix to obtain a molten medicine liquid; (2) dropping step: delivering the molten medicine liquid to a dripper, and acquiring medicine drops of the molten medicine liquid by means of vibration dropping; and, (3) condensation step: cooling the medicine drops with a cooling gas to obtain micro drop pills.

Abstract: Techniques are disclosed herein for file sharing using remote applications. One embodiment provides a computer-implemented method that includes receiving, at a computing device, a selection of a reference for accessing the file, where the reference includes a first identifier specifying the file stored on a host server remotely located with respect to the computing device and a second identifier specifying an application that is running on the host server and that is configured to open files of a same type as the file. The method further includes establishing a remote connection to the application specified by the second identifier, by connecting to the host server and causing the application to be launched on the host server. In addition, the method includes causing the application to open the file specified by the first identifier and the user interface of the application to be remoted to the computing device.

Abstract: A traditional Chinese medicine composition and preparation thereof for treating cardiovascular diseases is provided. The traditional Chinese medicine composition consists of: by weight percentage, phenolic acid derivatives 30%˜80%, tanshinones 2%˜10% and saponins 15%˜60%.

Abstract: The present invention discloses a thin-film transistor structure with a three-dimensional fin-shape channel and a preparation method thereof. The preparation method includes following steps: (a) depositing and etching a bottom gate electrode on a substrate; (b) depositing a bottom dielectric layer at an upper part of a structure obtained from the step (a), and sequentially depositing a semiconductor film on the bottom dielectric layer; (c) etching the semiconductor film to obtain a fin-type channel; (d) respectively depositing an ohmic contact layer, a source electrode and a drain electrode on the semiconductor film located at both sides of the fin-shape channel, and etching; (e) depositing a top dielectric layer and a top gate electrode at an upper part of a structure obtained from the step (d); and (f) etching the top gate electrode, an completing a preparation of a thin-film transistor with a dual-gate three-dimensional fin-shape channel.

Abstract: A traditional Chinese medicine composition for treating cardiovascular disease, and a preparation thereof, particularly a micro drop pill preparation thereof, and a method for preparing the preparation; the method for preparing the micro drop pill preparation can be used to prepare drop pills, coated drop pills, and drop pill capsules with a high drug loading capacity.

Abstract: A traditional Chinese medicine composition for treating cardiovascular disease, and a preparation thereof, particularly a micro drop pill preparation thereof, and a method for preparing the preparation; the method for preparing the micro drop pill preparation can be used to prepare drop pills, coated drop pills, and drop pill capsules with a high drug loading capacity.

Abstract: A traditional Chinese medicine composition for treating cardiovascular disease, and a preparation thereof, particularly a micro drop pill preparation thereof, and a method for preparing the preparation; the method for preparing the micro drop pill preparation can be used to prepare drop pills, coated drop pills, and drop pill capsules with a high drug loading capacity.

Abstract: A traditional Chinese medicine composition for treating cardiovascular disease, and a preparation thereof, particularly a micro drop pill preparation thereof, and a method for preparing the preparation; the method for preparing the micro drop pill preparation can be used to prepare drop pills, coated drop pills, and drop pill capsules with a high drug loading capacity.