摘要:
An electrical test device including at least one transducer to detect a status of a circuit under test, and at least one indicator located remotely from the at least one transducer to display the status of the circuit under test.
摘要:
An instrumentation service is described that uses dye injection and filtering in a Session Initiation Protocol (SIP) application server environment. The instrumentation service can provide a flexible mechanism for selectively adding diagnostic code to the SIP application server and the various applications running on it. It can allow flexible selection of locations in the server and application code, at which instrumentation code can be added. The process of adding diagnostic code can be deferred to the time of running the server at the deployment site. The instrumentation service further allows flexible selection of diagnostic actions, which can be executed at selected locations. In various embodiments, the execution of diagnostic code can be dynamically enabled or disabled while the server is running. Also, the behavior of diagnostic code executed at such locations can be dynamically changed while the server is running.
摘要:
A positive temperature coefficient (PTC) device is connected in parallel with the circuit breaker of e.g., a power-conditioning circuit. Such an arrangement allows pre-charging of the capacitors in the circuit while the circuit is switched off, so that a current surge is avoided when the circuit is powered on. In the event of overcurrent due to a circuit fault, the PTC device will switch to a high-resistance state, which will protect the circuit.
摘要:
An endoscope coupler apparatus and method includes a sealed chamber and a lens assembly movable within the chamber for optically adjusting an image to be received by a video camera. The optical adjustment may be, for example, a focus adjustment or a zoom or orientation adjustment, etc. In a preferred embodiment, spaced permanent drive magnets located in an outer rotatable frame situated outside of the chamber are magnetically coupled with respective permanent driven magnets secured to an inner rotatable frame within the sealed chamber. The outer frame is rotatable but not longitudinally movable about the chamber and rotates the drive magnets and, therefore, the driven magnets. The inner frame is secured to a rotatable cylindrical housing which engages a lens assembly. Rotation of the driven magnets and the cylindrical housing moves the lens assembly longitudinally in response to rotation of an adjustment ring attached to the outer frame.
摘要:
An instrumentation service is described that uses dye injection and filtering in a Session Initiation Protocol (SIP) application server environment. The instrumentation service can provide a flexible mechanism for selectively adding diagnostic code to the SIP application server and the various applications running on it. It can allow flexible selection of locations in the server and application code, at which instrumentation code can be added. The process of adding diagnostic code can be deferred to the time of running the server at the deployment site. The instrumentation service further allows flexible selection of diagnostic actions, which can be executed at selected locations. In various embodiments, the execution of diagnostic code can be dynamically enabled or disabled while the server is running. Also, the behavior of diagnostic code executed at such locations can be dynamically changed while the server is running.
摘要:
A system and method for delivering messages and/or multimedia content using a short message services (SMS) telecommunication network. Mobile devices are coupled to the telecommunication network. A sender may distribute the message using a mobile device to a recipient on another telecommunication network. In one embodiment, a message is requested using a unique pairing identifier and the message is streamed to the recipient. The message may include a multimedia content, and may be based on a demographic trait of the recipient.
摘要:
A SIP server can be deployed in a two-tier architecture, including an engine tier for processing of SIP communications and a state tier for maintaining the state associated with these communications. The state tier can include RAM-based replicas that provide data to the engines. Some of the SIP session state can be moved to the database in order to reduce the memory requirements of the state tier. Upon determining that a transaction boundary has been reached where the session state is steady, the state replica can save the data to the database. A hint can be received from the engine tier by the state replica indicating that the state data is ready to be saved. Subsequently, the data can be removed from the state tier by nulling out the bytes of actual data, while preserving the primary key, locking and timer information so as not to impact latency.
摘要:
An electrical test device including at least one transducer to detect a status of a circuit under test, and at least one indicator located remotely from the at least one transducer to display the status of the circuit under test.
摘要:
Molten iron is cast into a mould through a filter located in the runner system of the mould using a filter comprising a body having a plurality of cells, at least some of the cells having their walls at least partially coated with a first layer of wax and a second layer of an inoculant, such as graphite, calcium silicide or ferrosilicon, for the iron.
摘要:
A SIP server can be deployed in a two-tier architecture, including an engine tier for processing of SIP communications and a state tier for maintaining the state associated with these communications. The state tier can include RAM-based replicas that provide data to the engines. Some of the SIP session state can be moved to the database in order to reduce the memory requirements of the state tier. Upon determining that a transaction boundary has been reached where the session state is steady, the state replica can save the data to the database. A hint can be received from the engine tier by the state replica indicating that the state data is ready to be saved. Subsequently, the data can be removed from the state tier by nulling out the bytes of actual data, while preserving the primary key, locking and timer information so as not to impact latency.