Abstract: Systems, methods, and and/or algorithms facilitate navigation with augmented reality by determining which streets should be annotated, and/or determining the position and/or format of street annotations, based on factors such as user distance and orientation relative to streets, and/or the configuration of streets (e.g., whether nearby streets form a simple intersection, a complex intersection, or no intersection).

Abstract: To present augmented reality features without localizing a user, a client device receives a request for presenting augmented reality features in a camera view of a computing device of the user. Prior to localizing the user, the client device obtains sensor data indicative of a pose of the user, and determines the pose of the user based on the sensor data with a confidence level that exceeds a confidence threshold which indicates a low accuracy state. Then the client device presents one or more augmented reality features in the camera view in accordance with the determined pose of the user while in the low accuracy state.

Abstract: To present augmented reality features without localizing a user, a client device receives a request for presenting augmented reality features in a camera view of a computing device of the user. Prior to localizing the user, the client device obtains sensor data indicative of a pose of the user, and determines the pose of the user based on the sensor data with a confidence level that exceeds a confidence threshold which indicates a low accuracy state. Then the client device presents one or more augmented reality features in the camera view in accordance with the determined pose of the user while in the low accuracy state.

Abstract: The present disclosure relates to the technical field of semiconductors, and provides a semiconductor structure and a manufacturing method thereof. The semiconductor structure includes a substrate, an NMOS transistor, and a PMOS transistor. The NMOS transistor includes a first dielectric layer, a first work function layer, and a first conductive layer that are stacked in sequence. The PMOS transistor includes a second dielectric layer, a second work function layer, and a second conductive layer that are stacked in sequence.

Abstract: An optical fiber laser coupler, comprising a laser input optical cable, a laser shaping and coupling device, and a multi-beam-mode energy transmission fiber (205). The multi-beam-mode energy transmission fiber (205) comprises a circular fiber core (105) and annular fiber cores (106, 107), and each annular fiber core (106, 107) is coaxial with the circular fiber core (105). A fluorine-doped layer (109) is disposed between the circular fiber core (105) and the annular fiber core (106, 107), and the fluorine-doped layer (109) is also disposed between adjacent annular fiber cores (106, 107). An adjustable collimating lens group (203) and an adjustable focusing lens group (204) of the laser shaping and coupling device can horizontally move along a direction of a laser beam in a housing of the laser shaping and coupling device.

Abstract: A preparation method of a semiconductor structure includes: a substrate including a groove structure is provided; a first isolation layer, a second isolation layer and a third isolation layer are sequentially formed on a bottom and sidewalls of the groove structure, where an upper surface of the first isolation layer is lower than an upper surface of the second isolation layer and an upper surface of the substrate to form a side trench; the third isolation layer is etched to enable an upper surface of the third isolation layer to be lower than the upper surface of the second isolation layer so that a top of the second isolation layer protrudes with respect to the first isolation layer and the third isolation layer to form a convex structure; and the second isolation layer is etched to remove the convex structure.

Abstract: To present augmented reality features without localizing a user, a client device receives a request for presenting augmented reality features in a camera view of a computing device of the user. Prior to localizing the user, the client device obtains sensor data indicative of a pose of the user, and determines the pose of the user based on the sensor data with a confidence level that exceeds a confidence threshold which indicates a low accuracy state. Then the client device presents one or more augmented reality features in the camera view in accordance with the determined pose of the user while in the low accuracy state.

Abstract: The present disclosure relates to the technical field of semiconductors, and provides a semiconductor structure and a manufacturing method thereof. The semiconductor structure includes a substrate, an NMOS transistor, and a PMOS transistor. The NMOS transistor includes a first dielectric layer, a first work function layer, and a first conductive layer that are stacked in sequence. The PMOS transistor includes a second dielectric layer, a second work function layer, and a second conductive layer that are stacked in sequence.

Abstract: Embodiments of the present application provide a semiconductor device and a method of manufacturing semiconductor device. The semiconductor device includes a substrate, a silicon-germanium (SiGe) epitaxial layer, a protective layer, and a positive-channel metal-oxide semiconductor (PMOS) gate; a surface of the substrate includes at least a PMOS region; the SiGe epitaxial layer is grown on the surface of the substrate and located in the PMOS region; the protective layer covers a surface of the SiGe epitaxial layer; the PMOS gate is located on a surface of the protective layer.

Abstract: An optical fiber laser coupler, comprising a laser input optical cable, a laser shaping and coupling device, and a multi-beam-mode energy transmission fiber (205). The multi-beam-mode energy transmission fiber (205) comprises a circular fiber core (105) and annular fiber cores (106, 107), and each annular fiber core (106, 107) is coaxial with the circular fiber core (105). A fluorine-doped layer (109) is disposed between the circular fiber core (105) and the annular fiber core (106, 107), and the fluorine-doped layer (109) is also disposed between adjacent annular fiber cores (106, 107). An adjustable collimating lens group (203) and an adjustable focusing lens group (204) of the laser shaping and coupling device can horizontally move along a direction of a laser beam in a housing of the laser shaping and coupling device.

Abstract: Provided is a method of causing a cell to migrate to a scaffold. Also provided is a method of treating a mammal that has a tissue defect. Further provided is a tissue scaffold comprising platelet-derived growth factor (PDGF). Additionally, a method of making a tissue scaffold capable of recruiting a cell is provided.

Abstract: Provided is a method of causing a cell to migrate to a scaffold. Also provided is a method of treating a mammal that has a tissue defect. Further provided is a tissue scaffold comprising platelet-derived growth factor (PDGF). Additionally, a method of making a tissue scaffold capable of recruiting a cell is provided.