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: 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 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.

Abstract: A connector (100) includes an insulative housing (1), a set of contacts (3) attached to the insulative housing, and a metal shell shielding the insulative housing. The insulative housing has a base portion (11) and a tongue portion (12) extending forwardly from the base portion. The base portion has a pair of first bumps (1124) protruding therefrom and located at two sides thereof, and a second bumps (1125) protruding therefrom and located between the first bumps. The metal shell has a pair of first notches (44) locating at two sides thereof and locking with the first bumps, and a second notch (45) located between the first notches and locking with the second bumps.

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.

Abstract: The present invention discloses a pad structure and a method for testing a integrated circuit. The structure includes the first pads and the second pads, where the first pads are distributed over a peripheral portion of the integrated circuit and connected with lead-out wires of the integrated circuit, and the second pads are connected with a metal line at a circuit portion in the integrated circuit and are sized larger than the minimum characteristic dimension of the metal line and of the integrated circuit and smaller than the size of the first pads. The pad structure and method can position a test portion with improved efficiency. Correspondingly, a probe can be used to position the test portion with improved accuracy as well.

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.

Abstract: A connector (100) includes an insulative housing (1), a set of contacts (3) attached to the insulative housing, an insulator (2) retained in the insulative housing (1) and a metal shell (4) covering the insulative housing and the insulator. The insulative housing has a base portion (11) and a tongue potion (12) extending from the base portion (11). The base portion has a retaining slot (1110) and a pair of side walls (113), each side wall has a protrusion (1131) protruding outwardly from an outer face thereof. The insulator (2) is retained in the retaining slot and has a pair of side surfaces (23) facing inner faces of the side wall. At least one clearance is formed between the adjacent side surface and inner face and is corresponding to the protrusions (1131, 1132) respectively in a transverse direction.

Abstract: Various embodiments include a method and system to supplement a listing via a third party trust provider. Responsive to an event associated with an item listing, supplemental trust information is requested from a third party trust provider using at least one predetermined criterion from the item listing. At least a portion of the supplemental trust information may be stored in the item listing. A notification may be presented in response to a trigger based on the at least a portion of the STI stored in the item listing.

Abstract: Various embodiments include a method and system to supplement a listing via a third party trust provider. Responsive to an event associated with an item listing, supplemental trust information is requested from a third party trust provider using at least one predetermined criterion from the item listing. At least a portion of the supplemental trust information may be stored in the item listing. A notification may be presented in response to a trigger based on the at least a portion of the STI stored in the item listing.