摘要:
A photoionization detector includes a housing, electrical contacts within the housing and an easily removable and replaceable photoionization chamber within the housing. The photoionization chamber includes a cathodic electrode and an anodic electrode which may be coated with a thin layer of material. The photoionization chamber and the associated cathodic electrode and anodic electrode are removable from within the housing as a unit. The photoionization chamber makes electrical connection with the contacts when seated within the housing regardless of the orientation of the photoionization chamber about an axis.
摘要:
Embodiments of the invention provide a hydraulic isolator to split a volute of a pump into two compartments. The hydraulic isolator is positioned within the volute and includes an inlet positioned around a volute inlet channel of the pump, and an outlet positioned adjacent to an outlet channel of the pump. The hydraulic isolator also includes a toroidal portion to at least partially surround an impeller of the pump.
摘要:
The present invention is premised upon a through-roof connector assembly comprising one or more photovoltaic building sheathing elements capable of being affixed on a building structure, the photovoltaic building sheathing element including a sheathing element electrical connector along a sheathing element peripheral edge; a through-roof connector edge piece assembly that abuts a portion of the photovoltaic building sheathing element and includes: a body portion, an edge piece electrical connector, one or more wire leads that are connected on one end to the edge piece electrical connector; a wire guiding member with at least one conduit hole, the wire guiding member located under the through-roof connector edge piece assembly when assembled; and an under-roof junction device that is removably connected to the wire guiding member.
摘要:
Embodiments of the invention provide a hydraulic isolator to split a volute of a pump into two compartments. The hydraulic isolator is positioned within the volute and includes an inlet positioned around a volute inlet channel of the pump, and an outlet positioned adjacent to an outlet channel of the pump. The hydraulic isolator also includes a toroidal portion to at least partially surround an impeller of the pump.
摘要:
A method of splicing a power cable used to supply electricity to down hole submersible pumps uses a pair of annular armored seal members that are slid over the ends of an insulated electrical conductor being spliced together. Each armored seal member has a plurality of O-ring seals on one end thereof and a plurality of openings in the side thereof and are used to cover and protect a crimped conductor being spliced together. The method and apparatus allow a pair of spliced electrical cables to be used in an adverse environment.
摘要:
The invention performs long term evolution (LTE) tracking area updates (TAUs), and tracking area code (TAC) and public land mobile network identification (PLMN-ID) assisted optimized wireless transmit/receive unit (WTRU) cell reselection. An evolved Node-B broadcasts system information including at least one system information block (SIB) based at least in part on an enhanced universal terrestrial radio access network (E-UTRAN) parameter response message sent by an evolved packet core (EPC) network. A WTRU generates a new TAC, which represents a tracking area identification (TA-ID) of a new cell, based on the system information, and compares the new TAC to an existing TAC, which represents a TA-ID of a previous cell. The WTRU transmits to the EPC network a TAU request message including the TA-ID of the new cell. The EPC network sends either a TAU accept message or a TAU reject message to the WTRU.
摘要:
A method for performing rate control for VoIP services using messages to enable the RRC to be aware of activity in the SIP/ARM level and to recommend an AMR rate change according to conditions in a wireless communication network. The messages allow VoIP services to dynamically adjust both rate and voice quality based on network conditions. A method for triggering RRC codec rate control using RRM conditions in the network. A method for coordinating AMR autonomous rate control and RRC commanded rate control using a guard mechanism between messages.
摘要:
A method provides an interconnect structure having enhanced structural support when underlying functional metal layers are insulated with a low modulus dielectric. A first metal layer having a plurality of openings overlies the substrate. A first electrically insulating layer overlies the first metal layer. A second metal layer overlies the first electrically insulating layer, the second metal layer having a plurality of openings. An interconnect pad that defines an interconnect pad area overlies the second metal layer. At least a certain amount of the openings in the two metal layers are aligned to improve structural strength of the interconnect structure. The amount of alignment may differ depending upon the application and materials used. A bond wire connection or conductive bump may be used with the interconnect structure.
摘要:
Embodiments of the present invention provide a bracket for use within a rolling shutter assembly having a rolling shutter coiled around a shutter support. The bracket includes a main body having a pivot member configured to pivotally secure within the shutter assembly, wherein the main body is configured to pivot about the pivot member. A support attachment member is configured to secure to the shutter support, wherein the support attachment member is separate and distinct from the pivot member.