Abstract: The disclosure belongs to the technical field of powder metallurgy, and provides a method for preparing an aluminum-based tubular target. The method includes: sleeve assembly, raw material mixing, powder filling, sleeve degassing, hot isostatic pressing, and finished product processing.

Abstract: The present disclosure provides a machine vision-based automatic focusing and automatic centering method and system. An object stage is controlled to move in an imaging distance range of an electron microscope, and images scanned by the electron microscope when the object stage is at different imaging distances are acquired. The image definition of an object stage image is calculated according to a gray-scale value of each pixel in the object stage image, the imaging position when an image definition value is the maximum is determined, and the object stage is controlled to move to the position to realize machine vision-based accurate focusing. After the accurate focusing is completed, the images that can clearly reflect the arrangement relationship between an indenter and a sample on the object stage are acquired by the electron microscope, and a midline of an indenter area and a midline of a sample area are aligned.

Abstract: The disclosure belongs to the technical field of powder metallurgy, and provides a method for preparing an aluminum-based tubular target. The method includes: sleeve assembly, raw material mixing, powder filling, sleeve degassing, hot isostatic pressing, and finished product processing.

Abstract: A neural-network-based-implemented ophthalmologic intelligent consultation method includes: performing correction filtering on a consultation voice of a patient, framing the voice into a consultation voice frame sequence, generating a consultation text corresponding to the consultation voice frame sequence based on phoneme recognition and phoneme transcoding, and extracting an ophthalmologically-described disease; performing gray-level filtering, primary picture segmentation, and size equalization operation on an eye picture set of the to-be-diagnosed patient to acquire a standard eyeball picture group; extracting eye white features, pupil features and blood vessel features from the standard eyeball picture group, performing lesion feature analysis on the eye white features, the pupil features and the blood vessel features to acquire an ophthalmologically-observed disease, and based on the ophthalmologically-observed disease and the ophthalmologically-described disease, generating a consultation result.

Abstract: The present disclosure provides a machine vision-based automatic focusing and automatic centering method and system, which belongs to the technical field of machine vision-based automatic control. An object stage is controlled to move in an imaging distance range of an electron microscope, and images scanned by the electron microscope when the object stage is at different imaging distances are acquired. The image definition of an object stage image is calculated according to a gray-scale value of each pixel in the object stage image, the imaging position when an image definition value is the maximum is determined, and the object stage is controlled to move to the position, so as to realize machine vision-based accurate focusing.

Abstract: A system and method for electrostatic discharge protection. The system includes a plurality of transistors. The plurality of transistors includes a plurality of gate regions, a plurality of source regions, and a plurality of drain regions. The plurality of source regions and the plurality of drain regions are located within an active area in a substrate, and the active area is adjacent to at least an isolation region in the substrate. Additionally, the system includes a polysilicon region. The polysilicon region is separated from the substrate by a dielectric layer, and the polysilicon region intersects each of the plurality of gate regions. At least a part of the polysilicon region is on the active area.

Abstract: Novel piperazin-2-one containing compounds of general formulae (I) or (II), including their pharmaceutically acceptable isomers, salts, hydrates, solvates and prodrug derivative having activity against mammalian factor Xa arc described. Compositions containing such compounds are also described. The compounds and the compositions are useful in vitro or in vivo for preventing or treating conditions in mammals characterized by undesired thrombosis.

Abstract: Novel compounds, their salts and compositions related thereto having activity against mammalian factor Xa are disclosed. The compounds are useful in vitro or in vivo for preventing or treating coagulation disorders.

Abstract: Novel compounds of formula I: 1

Abstract: Novel compounds, their salts and compositions related thereto having activity against mammalian integrins are disclosed. The compounds are useful in vitro or in vivo for preventing or treating thrombotic or restenotic disorders.

Abstract: Novel compounds, their salts and compositions related thereto having activity against mammalian factor Xa are disclosed. The compounds are useful in vitro or in vivo for preventing or treating coagulation disorders.

Abstract: Novel compounds, their salts and compositions related thereto having activity against mammalian factor Xa are disclosed. The compounds of formula (I) below: are useful in vitro or in vivo for preventing or treating coagulation disorders.

Abstract: Novel compounds of formula I: including its pharmaceutically acceptable isomers, salts, hydrates, solvates and prodrug derivatives having activity against mammalian factor Xa is described. Compositions containing such compounds are also described. The compounds and compositions are useful in vitro or in vivo for preventing or treating conditions in mammals characterized by undesired thrombosis.

Abstract: Novel compounds, their salts and compositions related thereto having activity against mammalian factor Xa are disclosed. The compounds are useful in vitro or in vivo for preventing or treating coagulation disorders.

Abstract: Novel compounds of formula I: 1

Abstract: Novel compounds, their salts and compositions related thereto having activity against mammalian factor Xa are disclosed. The compounds are useful in vitro or in vivo for preventing or treating coagulation disorders.

Abstract: Novel compounds, their salts and compositions related thereto having activity against mammalian integrins are disclosed. The compounds are useful in vitro or in vivo for preventing or treating thrombotic or restenotic disorders.

Abstract: Novel compounds, their salts and compositions related thereto having activity against mammalian integrins are disclosed. The compounds are useful in vitro or in vivo for preventing or treating thrombotic or restenotic disorders.

Abstract: Novel compounds, their salts and compositions related thereto having activity against mammalian factor Xa are disclosed. The compounds are useful in vitro or in vivo for preventing or treating coagulation disorders.