摘要:
An electrical switch having a housing with a support member, a rocker arm pivotally coupled to the support member for movement about an axis A, a first terminal coupled to the housing, and a lever pivotally coupled to the housing for pivotal movement about an axis B. The rocker arm includes a first member located on a first side of the pivot axis A, a second member on a second side of the pivot axis A, and a first movable contact coupled to the first member. The lever is pivoted in a first direction to engage the first member on the rocker arm to move the first movable contact away from the first terminal contact to scrape debris from the first movable contact and the first terminal contact. The lever is pivoted in a second direction to engage the second member on the rocker arm to move the first movable contact into a sliding engagement with the first terminal contact.
摘要:
An unattended ground sensor system includes a sensor to produce pixel data from a radiating target within its field of view. The detection of such a target is implemented detectors in the sensor other than those used for imaging. Once a target has been detected, the sensor collects a linear array of pixels data at each sampling period throughout the time interval during which the target is within the field of view of the sensor. The linear arrays of pixels are transmitted to a location remote from the sensor, where they are analyzed to classify and identify the target and an alert is issued to applicable personnel when the classification and identification of the target warrants such.
摘要:
An electrical assembly comprising an electrical box and a single gang electrical outlet having both a power connector and at least one communications connector and being supported in the box. The electrical outlet is receivable in the box, which has a barrier to isolate the power and communications connectors, but is not receivable in a standard box, which would not have the required barrier, due to the spacing and locations of the mounting fasteners and protrusions extending downwardly near the ends of the outlet. In addition to the electrical outlet with the power and communications connectors, the electrical box can receive a standard single gang outlet therein upon removal of the barrier.
摘要:
An overrunning clutch comprising a ratchet wheel (1) and a plurality of pawls (2) is disclosed. Each of the pawls (2) is rotationally supported on a disk member (5) by a shaft (3). The clutch is characterized by a permanent magnet (4) being fixed on the disk member (5) between the axes of the disk member (5) and the shaft (3) and facing the tail end of each pawl (2). Because each of the pawls are not driven by a spring in the clutch, the clutch could not be malfunction due to the fatigue failure of the spring in the case of frequent heavy load.
摘要:
According to an embodiment of the invention, a method and apparatus for symmetric scheduling for parallel execution is described. An embodiment of a method comprises building a queue having one or more drivers; and executing the one or more drivers in the queue using a plurality of processors, wherein the execution of drivers by each of the plurality of processors includes determining whether there is a driver in the queue, determining whether the driver is ready for execution, and if the driver is ready for execution, executing the driver.
摘要:
Disclosed is a phase-shifting mask having a pattern comprising a plurality of substantially transparent regions and a plurality of substantially opaque regions wherein the mask pattern phase-shifts at least a portion of incident radiation and wherein the phases are substantially equally spaced, thereby increasing resolution of a given lithographic system. Further disclosed is a semiconductor device fabricated utilizing the phase-shifting mask.
摘要:
A method is for making an integrated circuit on a semiconductor wafer, where the integrated circuit includes circuit features having a desired, relatively small, critical dimension. The method preferably comprises the steps of: designing a reticle including pattern features having a critical dimension to form corresponding circuit features based upon overlap areas defined by a plurality of exposure steps with a shift therebetween so that the circuit features have the desired, relatively small, critical dimension. The designing step preferably includes determining a scaling factor function for relating the critical dimension of the pattern features and the shift to the desired critical dimension of the circuit features and while taking into account that the scaling factor function is also a function of the shift. The method preferably includes steps of fabricating the reticle and using the reticle to make the integrated circuit on the semiconductor wafer based on the plurality of exposure steps. The present invention recognizes that the scaling factor is not a single number, but instead is a non-linear function which is also based upon the shift between exposure steps.
摘要:
An atomic absorption instrument has a burner and a mixing apparatus for delivering a combustible mixture to the burner. The mixing apparatus includes a mixing chamber assembly having a plurality of internal delivery passageways. An end cap assembly holds a nebulizer closes a mixing chamber. The end cap assembly has a plurality of internal feed passageways through which fluid from the internal delivery passageways flows into the mixing chamber. Latch mechanisms couple the end cap assembly to the mixing chamber assembly. The latch mechanisms can be operated to remove the end cap assembly.
摘要:
A method detects conflicts between a power supply guarantee request (PSGR) and an outage request (OR) in a power grid. The method comprises receiving a first outage device set including OR related devices and a power supply guarantee device set including PSGR related devices. Geographic information about devices in the power grid is used to determine a second outage device set, which includes devices in the first outage device set and accompanying outage devices that need to be in outage together with devices in the first outage device set. Power grid topology information is used to determine a power grid outage scale in which all devices in the second outage device set can be in outage. For each device in the power supply guarantee device set, the method detects whether the device is included in the power grid outage scale, to determine any conflict between the PSGR and OR.
摘要:
A method detects conflicts between a power supply guarantee request (PSGR) and an outage request (OR) in a power grid. The method comprises receiving a first outage device set including OR related devices and a power supply guarantee device set including PSGR related devices. Geographic information about devices in the power grid is used to determine a second outage device set, which includes devices in the first outage device set and accompanying outage devices that need to be in outage together with devices in the first outage device set. Power grid topology information is used to determine a power grid outage scale in which all devices in the second outage device set can be in outage. For each device in the power supply guarantee device set, the method detects whether the device is included in the power grid outage scale, to determine any conflict between the PSGR and OR.