Abstract: The present disclosure provides a risk assessment method of water inrush in tunnels constructed in water-rich grounds. The method includes the following steps: simulating a tunnel excavation process by finite element software MIDAS GTS NX and fluid-structure interaction; according to a research method of control variables, analyzing effects of a groundwater level, an elastic modulus and advanced pipe shed grouting on the stability of surrounding rock, and improving an algorithm of a radial basis function (RBF) neural network using a Grey Relation Analysis (GRA)-based Partitioning Around Medoid (PAM) clustering algorithm to assess risks of water inrush occurring in Qingdao area.

Abstract: According to a quantization interconnect apparatus and an operating method thereof according to the exemplary embodiment of the present disclosure, in a quantization artificial neural network accelerator system, the quantization is performed in the interconnect bus according to a precision without separate processing of the CPU/GPU so that as compared with the quantization by a host processor and an accelerator according to a quantization method of the related art, a number of instructions is reduced to improve the performance/memory efficiency. Further, a computational burden of the host process is reduced to reduce the power and improve the performance.

Abstract: The present disclosure provides a multi-factor quantitative analysis method for deformation of a neighborhood tunnel. The method includes the following steps: analyzing monitoring data generated at a tunnel site; simulating collapse occurring at a shallow buried section of a tunnel; determining the degree of influence of each factor on the tunnel and a stratum; and determining quantitative influence of each factor on tunnel deformation. The present disclosure can not only provide an accurate theoretical basis for the construction of the shallow buried section of the small-distance tunnel, but also guarantee safety and cost saving during tunnel construction.

Abstract: Disclosed are a foldable screen and a display device. The foldable screen includes: a flexible display panel and a plurality of elastic portions, wherein each of the elastic portions includes each of elastic support members and two connecting rods fixedly connected to each of the elastic support members; wherein the two connecting rods are respectively connected to two flat portions of the flexible display panel, and the elastic support members are configured to supply a support force to the foldable portion in the case that a display surface of the foldable portion of the flexible display panel is coplanar with those of the flat portions.

Abstract: This application relates to a rotating assembly, a foldable mechanism, and a foldable terminal, and relates to the field of terminal technologies. The rotating assembly includes a base, a rotating shaft, and a swing arm, where the base is provided with a rotating shaft through-hole and an arc-shaped first slideway, the first slideway and the rotating shaft through-hole communicate with each other, and axes thereof are parallel to each other; the rotating shaft is provided with an arc-shaped second slideway, an axis of the rotating shaft is parallel to an axis of the second slideway, the second slideway runs through the rotating shaft, and a radius of the second slideway is equal to that of the first slideway; the rotating shaft is located in the rotating shaft through-hole, the first slideway and the second slideway can be connected to each other to form a continuous slideway, and the swing arm is located in the continuous slideway and can slide in the continuous slideway.

Abstract: This application provides a device tracking detection method and an electronic device, and is related to the field of terminal technologies. Because when the first electronic device receives a first Bluetooth signal based on a first signal filter, it implies that a first Bluetooth peripheral is near the first electronic device; and because the first Bluetooth peripheral broadcasts the first Bluetooth signal only once every other second duration, it also implies that the first Bluetooth peripheral may be near the first electronic device within the second duration during which the first Bluetooth signal is received based on the first signal filter. Therefore, when a moving speed is greater than a preset speed threshold, recorded trajectory information of the first Bluetooth peripheral includes not only location information of the first electronic device when receiving the first Bluetooth signal, but also location information of the first electronic device within the second duration.

Abstract: A solderless battery pack is provided that includes a battery port, a protective plate, an upper end plate, a lower end plate, cell groups and a cell locking mechanism. The cell groups are arranged between the upper end plate and the lower end plate and include a cell installation bracket, cells and a PCB busbar. The cell locking mechanism includes a metal upper pressing plate, a metal lower pressing plate and a fastening long bolt that passes through the metal upper pressing plate, the metal lower pressing plate, the upper end plate, the lower end plate and the cell groups.

Abstract: A ranging method and an apparatus thereof, a storage medium, and a terminal device. By adding a processing unit into a hardware abstraction layer of the terminal device, a software method is thus used to replace a physical proximity sensor (Psensor); in addition, costs are effectively reduced.

Abstract: Disclosed is a method for deep-sea extraction of natural gas hydrates with reservoir top control and sand prevention, belonging to the technical field of natural gas hydrates mining. A grouting layer is constructed between a natural gas hydrates reservoir layer and an upper overburden layer by adopting a multi-branch horizontal well process, a vertical shaft is drilled further into the natural gas hydrates reservoir layer after the grouting layer is stabilized, and a mining device and a bottom plugging device are installed in the vertical shaft according to a thickness of the reservoir.

Abstract: An electrical connector comprises an insulative housing having a base portion with a rear room depressed thereof, a top and a lower tongue portions extending forwardly, a plurality of contacts retained to the insulative housing, a spacer received in the rear room, and a metal shell having two side walls covering two sides of the insulative housing. The spacer has a base, a front portion and a rear portion extending upwardly from the base, and a groove depressed between the front and the rear portion. A metal plate received in the groove. The metal plate has a pair of cantilever arms extending downwardly from two side edges of the main portion. The pair cantilever arms are mirror and coplanar to each other, each of the cantilever arm having a protruding portion protruding beyond a side of the insulative housing to abut against the side wall of the metal shell.

Abstract: An electrical connector comprises an insulative housing, a plurality of contacts, a shield shell covering the insulative housing and a shield plate. The insulative housing has a body portion and a spacer. The contacts are received in the body portion. The shield shell includes a out shell and an inner shell, the inner shell is separated the insulative housing covering by the out shell to two parts each are upper inserting space and bottom inserting space. The shield plate received in the spacer and abutting against the inner shell electrically.

Abstract: An electrical connector comprises an insulative housing having a base portion with a rear room depressed thereof, a top and a lower tongue portions extending forwardly, a plurality of contacts retained to the insulative housing, a spacer received in the rear room, and a metal shell having two side walls covering two sides of the insulative housing. The spacer has a base, a front portion and a rear portion extending upwardly from the base, and a groove depressed between the front and the rear portion. A metal plate received in the groove. The metal plate has a pair of cantilever arms extending downwardly from two side edges of the main portion. The pair cantilever arms are mirror and coplanar to each other, each of the cantilever arm having a protruding portion protruding beyond a side of the insulative housing to abut against the side wall of the metal shell.

Abstract: An electrical connector comprises an insulative housing, a plurality of contacts, a shield shell covering the insulative housing and a shield plate. The insulative housing has a body portion and a spacer. The contacts are received in the body portion. The shield shell includes a out shell and an inner shell, the inner shell is separated the insulative housing covering by the out shell to two parts each are upper inserting space and bottom inserting space. The shield plate received in the spacer and abutting against the inner shell electrically.

Abstract: Embodiments of the invention are directed to compounds that inhibit an activity of EPAC proteins and methods of using the same.

Abstract: Various embodiments include a method and system to request supplemental trust information (STI), from over a network, from a third party trust provider. The requesting uses a first predetermined criterion from an item listing that describes a particular item that is offered for sale on a network-based marketplace. The STI includes history information for the particular item that is generated by the third party trust provider. The system then stores and presents at least a portion of the STI.