摘要:
A method of assembling a testing apparatus for a full-power converter assembly includes coupling an electric power supply apparatus to an electric power grid. The method also includes coupling a direct current (DC) generation apparatus to the electric power supply apparatus. The method further includes coupling an electric power grid simulation device to the DC generation apparatus. The method also includes coupling a full-power converter assembly test connection to the electric power grid simulation device.
摘要:
A method of operating a three level converter includes controlling the output voltage of the converter when a DC link voltage of the three level converter is lower than one-half of a rated DC link voltage of the converter by, for each leg of the converter, alternately connecting an output terminal of the leg to the positive terminal or the negative terminal of the DC link. When the DC link voltage is at least one-half of the rated DC link voltage, the method includes controlling the output voltage of the converter by, for each leg, selectively connecting the output terminal of the converter to the positive terminal, the negative terminal, or a mid-point of the DC link.
摘要:
A method comprising orally administering to a mammal a proton pump inhibitor, or a pharmaceutically acceptable prodrug thereof, and a compound which modulates the activity of the MRP2 or other transporter proteins involved in efflux of a proton pump inhibitor or a prodrug, is disclosed herein, said method being effective for the prevention or treatment of a disease or condition related to gastric acid secretion. This method applied to compounds which both inhibit and stimulate MRP2 activity or activity of other transporter proteins involved in efflux of a proton pump inhibitor or a prodrug.Compositions, medicaments, and experimental results related thereto are also disclosed.
摘要:
A system, in one embodiment, includes a power distribution center having an enclosure with an access door configured to move between a closed position and an open position. The power distribution center includes a non-contact sensor disposed inside the enclosure, wherein the non-contact sensor includes a non-contact voltage sensor, or a non-contact temperature sensor, or a combination thereof. The power distribution center also includes an indicator viewable outside of the enclosure while the door is in the closed position, wherein the indicator is coupled to the non-contact sensor.
摘要:
The invention discloses a biosensor includes a strip having an integrated heating element and an electrode with metallized graphite including metal in the range of 0.1-5% in weight; graphite in the range of below 55% in weight; and polymer. The biosensor further includes an electric measuring device having a slot enabling the strip to insert therein.
摘要:
The present invention is directed to recombinantly engineered mice that are deficient in the expression of both presenilin-1 and presenilin-2. The mice exhibit characteristics of age-dependent cognitive impairments and neurodegeneration similar to those seen in Alzheimer's disease patients. This presenilin-deficient mouse model can be used to screen compounds capable of slowing, preventing or reversing the progression of cognitive impairments and neurodegeneration. The invention is also directed to the development of treatments for Alzheimer's disease based on augmentation or restoration of presenilin function in the brain. On the basis of the findings described herein, the invention is further directed to the development of assays to detect functional presenilin deficiency in human individuals, preferably through analysis of presenilin substrates, which may provide biomarkers useful in the diagnosis of Alzheimer's disease.
摘要:
Methods and formulations for promoting the healing of fracture nonunion sites under inflammatory conditions. The formulation includes a flexible biodegradable scaffold loaded with therapeutically effective amounts of CXCL12 and SPPI encapsulated in biodegradable microspheres. The method includes applying the formulation directly to a region of a fracture nonunion to effect sustained local release of the therapeutically effective amounts of CXCL12 and SPPI to the fracture nonunion region.
摘要:
One or more pins may be modally assigned to either the command/address (C/A) or data (DQ) blocks of a uniform-package, multi-modal PHY (physical signaling interface) of a memory controller, thus enabling those pins to be used as C/A pins when the PHY is connected to some memory types, and as DQ pins when the PHY is connected to other memory types.
摘要:
A control system for a multilevel converter includes a differential mode current regulator, a neutral point (NP) controller and a PWM controller for generating switching pulses for the multilevel converter. The differential mode current regulator generates reference voltage command signals based on a difference between reference current command signals and actual current command signals, and the NP controller determines a modified neutral point current signal in response to a DC link voltage unbalance. The NP controller utilizes the modified neutral point current signal to generate a common mode reference voltage signal. The switching pulses are generated by the PWM controller based on the reference voltage command signals and the common mode reference voltage signal.
摘要:
Devices (10) for driving loads (20) such as organic/inorganic light emitting diodes are provided with drivers (11) for driving the loads (20), with converters (12) for converting first parameter signals defining parameters of the loads (20) into second parameter signals each being defined by one bit per time interval, and with digital controllers (13) for controlling the drivers (11) in response to the second parameter signals. The converter (12) may comprise a comparator circuit (40) and a timer circuit (41) for comparing the first parameter signal with a reference signal and for generating the second parameter signal having a respective first or second value of two possible values in case of a respective first or second comparison result. The parameter may be a current flowing through or light emitted by at least a part of the load (20). The driver (11) may be a buck/boost/buck boost/fly back converter.