Abstract: The present disclosure relates to a thermoplastic pulverulent composition comprising (a) at least one silica particle treated with alkoxysilane; and (b) at least one thermoplastic polymer. The present disclosure also relates to a 3D-printed object formed from the thermoplastic pulverulent composition and a process of forming the 3D-printed object. The thermoplastic pulverulent composition shows good powder flowability and the printed object obtained from said thermoplastic pulverulent composition surprisingly shows high elongation at break, high impact strength, good toughness and low surface roughness.

Abstract: A virtual machine management method and apparatus, a device, and a readable storage medium. The virtual machine management method is applied to a private cloud, and comprises: acquiring a SELinux label, the SELinux label comprising five elements: User, Role, Type, Sensitivity, and Category (S101); setting elements other than Category in the SELinux label as default values (S102); assigning different values to Category according to a preset Category variable combination so as to obtain multiple non-duplicate label groups (S103); and configuring each label group to a virtual machine in the private cloud, so that virtual machines configured with the same label group communicate with each other, and virtual machines configured with different label groups are isolated from each other (S104).

Abstract: This disclosure relates to a radiation-curable liquid composition, comprising following components: (A) at least one radiation-curable reactive component; (B) at least one photoinitiator; and (C) at least one expandable microsphere and/or lightweight filler, relates to a 3D-printed object formed from the radiation-curable liquid composition as well as a process of forming the 3D-printed object. The 3D-printed object formed from the composition shows excellent energy return property and good mechanical property as well as low density and foam structure.

Abstract: The present disclosure relates to a pulverulent composition comprising (a) at least one phosphate flame retardant synergist selected from hydrogen phosphate salt, dihydrogen phosphate salt, hydrate thereof and mixture thereof; (b) at least one flame retardant; and (c) at least one thermoplastic polymer. The present disclosure also relates to a 3D-printed object formed from the pulverulent composition and a process of forming 3D-printed object. The pulverulent composition shows good printability and the 3D-printed objects obtained from the thermoplastic powders not only have excellent flame-retardant performance but also have good mechanical properties.

Abstract: The present disclosure generally relates to an apparatus (100) and method for measuring an object (200) embedded in a structure (210). The apparatus (100) comprises: a first antenna (110a) and a second antenna (110b) with respective perpendicular and parallel polarizations; a measurement instrument (120); and a control system (130). The measurement instrument (120) transmits and measures radio signals reflected from the object (200). The control system (130) generates a first representation (250) and a second representation (260) of the object (200) based on the measured radio signals from the first antenna (110a) and second antenna (110b), respectively. The control system (130) then measures a size of the object (200) from the first and second representations (250,260).

Abstract: Electron emitters and methods of fabricating the electron emitters are disclosed. According to certain embodiments, an electron emitter includes a tip with a planar region having a diameter in a range of approximately (0.05-10) micrometers. The electron emitter tip is configured to release field emission electrons. The electron emitter further includes a work-function-lowering material coated on the tip.

Abstract: The invention relates to a photo-curable liquid resin composition for 3D printing, its preparation process and use, and also to a method of forming a 3D-printed object by using the composition. By using the inventive composition for 3D printing, the improvement of the flexibility and elasticity of the cured composition can be achieved.

Abstract: An arrangement for non-destructive testing of a component part, which may include a first end surface and a second opposite end surface. The arrangement may include a plurality of discrete piezoelectric transduction elements arranged in a circular array on the first end surface, and an electric wave signal transmitting and receiving unit electrically coupled to the piezoelectric transduction elements. The electric wave signal transmitting and receiving unit may be able to generate an electric excitation wave signal and to receive an electric response wave signal. The piezoelectric transduction elements may deform, upon an application of the electric excitation wave signal, in an in-phase shearing motion parallel to the first end surface and in respective tangential direction with respect to the circular array so as to generate a corresponding structure-borne wave in the component part at the first end surface such that said structure-borne wave can propagate in the component part.

Abstract: Electron emitters and methods of fabricating the electron emitters are disclosed. According to certain embodiments, an electron emitter includes a tip with a planar region having a diameter in a range of approximately (0.05-10) micrometers. The electron emitter tip is configured to release field emission electrons. The electron emitter further includes a work-function-lowering material coated on the tip.

Abstract: Electron emitters and method of fabricating the electron emitters are disclosed. According to certain embodiments, an electron emitter includes a tip with a planar region having a diameter in a range of approximately (0.05-10) micrometers. The electron emitter tip is configured to release field emission electrons. The electron emitter further includes a work-function-lowering material coated on the tip.

Abstract: The present invention relates to a magnetic holder for immunoelectron microscopy grids. The holder comprises a frame, a magnet and a hydrophobic layer. The device can use a magnetic force to simultaneously attach the outer rings of nickel grids to the frame, so that a batch operation (such as rinsing, immunolabeling and dyeing) of the nickel grids can be realized. In addition, due to the hydrophobic effect of the hydrophobic layer, the holder can reduce the amount of the liquid carried by the nickel grids in the process of continuously transferring the nickel grids between different types of liquids to almost zero. Compared with the prior art, the magnetic holder effectively reduces the probability of cross-contamination between reagents.

Abstract: The present invention relates to a dual-arm clamping type holder for transmission electron microscopy grids and preparation method thereof. The preparation method comprises: firstly manufacturing a frame with two adjacent arms located on a same plane and have a clamping structure by a hard material; then putting the frame in a molten adhering liquid so that the frame is dipped with the adhering liquid; and finally, taking out the frame dipped with the adhering liquid, and waiting for the adhering liquid to solidify into adhering layers along the arms. The dual-arm clamping type holder manufactured by the method of the present invention comprises a frame and adhering layers; and the adhering layers adhere to the inner sides of the clamping structure between the two adjacent arms of the frame.

Abstract: The present invention relates to a magnetic holder for immunoelectron microscopy grids. The holder comprises a frame, a magnet and a hydrophobic layer. The device can use a magnetic force to simultaneously attach the outer rings of nickel grids to the frame, so that a batch operation (such as rinsing, immunolabeling and dyeing) of the nickel grids can be realized. In addition, due to the hydrophobic effect of the hydrophobic layer, the holder can reduce the amount of the liquid carried by the nickel grids in the process of continuously transferring the nickel grids between different types of liquids to almost zero. Compared with the prior art, the magnetic holder effectively reduces the probability of cross-contamination between reagents.

Abstract: The present invention relates to a dual-arm clamping type holder for transmission electron microscopy grids and preparation method thereof. The preparation method comprises: firstly manufacturing a frame with two adjacent arms located on a same plane and have a clamping structure by a hard material; then putting the frame in a molten adhering liquid so that the frame is dipped with the adhering liquid; and finally, taking out the frame dipped with the adhering liquid, and waiting for the adhering liquid to solidify into adhering layers along the arms. The dual-arm clamping type holder manufactured by the method of the present invention comprises a frame and adhering layers; and the adhering layers adhere to the inner sides of the clamping structure between the two adjacent arms of the frame.

Abstract: Electron emitters and method of fabricating the electron emitters are disclosed. According to certain embodiments, an electron emitter includes a tip with a planar region having a diameter in a range of approximately (0.05-10) micrometers. The electron emitter tip is configured to release field emission electrons. The electron emitter further includes a work-function-lowering material coated on the tip.

Abstract: An arrangement for non-destructive testing of a component part, which may include a first end surface and a second opposite end surface. The arrangement may include a plurality of discrete piezoelectric transduction elements arranged in a circular array on the first end surface, and an electric wave signal transmitting and receiving unit electrically coupled to the piezoelectric transduction elements. The electric wave signal transmitting and receiving unit may be able to generate an electric excitation wave signal and to receive an electric response wave signal. The piezoelectric transduction elements may deform, upon an application of the electric excitation wave signal, in an in-phase shearing motion parallel to the first end surface and in respective tangential direction with respect to the circular array so as to generate a corresponding structure-borne wave in the component part at the first end surface such that said structure-borne wave can propagate in the component part.

Abstract: Electron emitters and methods of fabricating the electron emitters are disclosed. According to certain embodiments, an electron emitter includes a tip with a planar region having a diameter in a range of approximately (0.05-10) micrometers. The electron emitter tip is configured to release field emission electrons. The electron emitter further includes a work-function-lowering material coated on the tip.

Abstract: A wireless network access method and apparatus are provided. The method includes obtaining identification information and status information of one or more network access points, determining a target access point according to the status information, submitting the identification information of the target access point to a network access server via a mobile communications network, receiving access account information for the target access point from the network access server, and transmitting a wireless network access request including the received access account information, to the target access point.

Abstract: A wireless network access method and apparatus are provided. The method includes obtaining identification information and status information of one or more network access points, determining a target access point according to the status information, submitting the identification information of the target access point to a network access server via a mobile communications network, receiving access account information for the target access point from the network access server, and transmitting a wireless network access request including the received access account information, to the target access point.

Abstract: A system and method for implementing interactive operations between a mobile communication terminal and an Email box. The system includes a database (DB) server, a format transforming Email-box server and an intermediate processing server. The method includes the following: performing, by the mobile communication terminal, interactive operations with an Email-box server where the Email box located via an intermediate server; first determining, by the intermediate server, communication mode set by a corresponding user according to set user information, during process of performing an interactive operation procedure; and providing, by the intermediate server, an interactive-operations processing service for the user's mobile communication terminal and the user's Email box with determined communication mode.