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This article reviews exposure information available for trichloroethylene (TCE) and assesses the magnitude of human exposure. The primary sources releasing TCE into the environment are metal cleaning and degreasing operations. Releases occur into all media but mostly into the air due to its volatility. It is also moderately soluble in water and can leach(More)
A mixer-first receiver design in 28-nm CMOS is discussed. An embedded 5-bit mixer digital-to-analog converter provides wideband tuneability to enhance device matching and, hence, suppress the multiple local oscillator (LO) harmonics as well as to improve the overall image rejection (IR) performance. Two-stage baseband amplifiers support a 50-MHz baseband(More)
A wide-tuning-range low-power sigma-delta-based direct-RF-to-digital receiver architecture is implemented in 65 nm CMOS. A multi-level (two-bit) non-return-to-zero DAC improves jitter immunity to enable a high dynamic range, and, with a class-AB low-noise transconductance amplifier guarantees a highly linear front end. The peak SNDR of the receiver exceeds(More)
A passive-mixer-first receiver design in 28 nm CMOS is presented where the front-end 5-bit mixer DAC provides a wide-band tuneable impedance match to suppress the LO leakage as well as to improve image rejection performance. Baseband LNA together with the AC-boosting compensation amplifier provides a 50MHz baseband bandwidth, which allows support for(More)
Doubly Fed Induction Generator (DFIG) is widely used for wind turbine electricity generation. In this work power interchange between a wind farm and power grid is studied in the presence of symmetrical three-phase and asymmetrical phase to ground faults. The wind farm comprises six 1.5MW wind turbines connected to 25kV distribution systems that exports(More)
This paper demonstrates a wideband CMOS all-digital polar transmitter with flip-chip connection to three high-density-interconnection PCB interposers. The interposers are designed to extract power from a CMOS open-drain inverse Class-D power amplifier core. For a wide frequency range from 0.7 to 3.5 GHz, continuous-wave output power higher than 25.5 dBm and(More)