摘要:
A system and method for selecting a best transmit antenna for a transceiver using antenna diversity that caches the identity of the best transmit antenna for each remote node from which a message has been received. The best transmit antenna is then selected for each message sent to a remote node having a cache entry.
摘要:
Dual spacer structures are fabricated such that sidewall spacers in a cell region are thinner than sidewall spacers in a periphery region. The fabricating method of memory includes forming a stop layer over the first semiconductor feature and the second semiconductor feature in cell region and periphery region. A spacer layer is formed over the stop layer in the periphery region. The spacer layer is patterned to form a spacer on a sidewall of the second semiconductor feature. An etching process is performed to form a resultant spacer on an interior sidewall of the opening between first semiconductor features. The stop layer on top surfaces of the first and second semiconductor features is removed.
摘要:
A method for manufacturing an extruded slot antenna array includes extruding a slot antenna body, the slot antenna including a first major surface, a second major surface, first and second external side walls, and one or more longitudinally extending internal waveguide walls disposed between the first and second major surfaces. Each of the internal waveguide walls forms a respective two or more open-ended waveguides, each open-ended waveguide having a first open end and a second open end. An array of slots is cut on the first major surface of the slot antenna body, the array of slots being arranged in a plurality of rows, one row of slots being formed along a longitudinal line of a respective open-ended waveguide. Next, a row of slots are subsequently cut on the second major surface of the extruded slot antenna body, the row of slots formed substantially perpendicularly to the longitudinal axis of the open-ended waveguides, one of the slots being formed on each of the open-ended waveguides. Next, end caps are attached to the first and second open-ends of each of the open-ended waveguides.
摘要:
A treadmill includes a base and a frame with a running belt is connected to a folding device connected to the base. The folding device includes a support frame which has a first end thereof pivotably connected to the base and a second end of the support frame is pivotably connected to a first end of a sliding frame. A second end of the sliding frame is pivotably connected to the frame. The sliding frame includes sliding members slidably connected to tracks of the base. The sliding members can be disengaged from openings defined in the tracks when the frame is raised. A driving device has one end connected to the frame and the other end of the driving device is pivotably connected to a branch of the sliding frame. The rising angle of the frame can be adjusted by lifting the second end of the sliding frame. When the frame is folded to upright position, the first end of the sliding frame is raised and pivoted upward the second end of the support frame.
摘要:
Systems and methods for cross-region active-active data replication are described. A system includes a cross-region replication service (CRS), a cross-region synchronization service (CSS), and a conflict-free replication data type (CRDT) module executed by a cache service instance.
摘要:
Online community based peer-to-peer media streaming systems and methods are disclosed. An exemplary method includes a service providing system accessing data associated with a hosted online community comprising a plurality of members, providing a peer-to-peer media streaming event to a group of the members of the online community based on the data associated with the online community, and providing an incentive to the group of the members for participation in the peer-to-peer media streaming event. Corresponding systems and methods are also disclosed.
摘要:
The present invention relates to a styrene resin blend having three-layer-structured particles, a method for preparing same, and an application thereof. In parts by weight, 100 parts of a vinyl aromatic compound, 0.1 to 10 parts of an initiator, 2 to 10 parts of an emulsifier, 100 to 300 parts of deionized water, and 0.1 to 10 parts of a cross-linking agent are polymerized at a temperature between 50° C. to 85° C. to acquire a core seeded emulsion; 15 to 70 parts of the core seeded emulsion, 0.1 to 10 parts of the initiator, 2 to 10 parts of the emulsifier, 80 to 300 parts of deionized water, and 30 to 85 parts of butadiene or another rubber monomers are reacted to acquire a two-layer particle emulsion; 40 to 90 parts of the two-layer particle emulsion, 10 to 70 parts of monomers of the vinyl aromatic compound, 10 to 60 parts of monomers of a vinyl cyanide compound, 2 to 10 parts of the emulsifier, and 80 to 300 parts of deionized water are reacted to acquire the blend; the impact strength thereof reaches 300 J/m, and the tensile strength is 53 MPa.
摘要:
A detection apparatus and method for testing optical performance of beam shaping element used in ultraviolet lithography machine; The apparatus comprises visible wavelength laser and other optical units placed along the optical axis including, in order from laser side, (a) beam expander lens group, (b) beam splitter, (c) first far field imaging lens, (d) adjustable aperture or (e) CCD image sensor, (f) second far field imaging lens and (g) energy sensor. The detection apparatus is suitable be employed to detect the optical performance of beam shaping element working at any ultraviolet band, and provides the features of low cost, easy operation and quick measurement.
摘要:
Described embodiments include a level shifter that provides a voltage level shift to applied signals, the amount of voltage shift being accurately controlled and independent of PVT. The level shifter has first transistor configured as a voltage follower with the gate coupled to an input terminal of the shifter and the source coupled to a node, a diode-connected transistor coupled between the node and an output terminal of the circuit, a first controlled current source coupled to the node, and a second controlled current source coupled to the output terminal. A controller receives a bandgap-stabilized voltage, squares the stabilized voltage to produce a control signal that controls the first and second controlled current sources. The voltage shift is proportional to a digitally-controlled scale factor (K) times the stabilized voltage. The ratio of the current from the first current source to the second current source is (K+1)/K.
摘要:
A maintenance tool for an insulator of a direct current transmission line comprises clamping devices and a tensioning device. The clamping devices are mounted at the two sides of the insulator through clamping, and the tensioning device is connected between the clamping devices. The clamping devices comprise a closed clamp (1), a single serial clamping device (2) and a wire end clamping device (30). The clamping device has advantages such as strong overall strength and bearing capacity, small size, light weight, and reliable working, and can be applied to replacement of various insulators on the direct current transmission line, reliably ensuring safe commissioning and regular maintenance of transmission lines.