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—This paper presents a 28-Gb/s transceiver in 32-nm SOI CMOS technology for chip-to-chip communications over high-loss electrical channels such as backplanes. The equalization needed for such applications is provided by a 4-tap baud-spaced feed-forward equalizer (FFE) in the transmitter and a two-stage peaking amplifier and 15-tap decision-feedback(More)
Recent projections by the Northeastern Illinois Planning Commission of population growth of one million and water shortages in the Chicago metropolitan area by 2020 are a wake-up call for action. Similar analyses and projections for the rest of Illinois have not yet been made. Water is increasingly recognized as a precious renewable resource to be managed(More)
Ar Ar Ar Ar Arsenic Geoc senic Geoc senic Geoc senic Geoc senic Geochemistr hemistr hemistr hemistr hemistry y y y y and Distribution in the and Distribution in the and Distribution in the and Distribution in the and Distribution in the Mahomet Mahomet Mahomet ACKNOWLEDGMENTS The authors thank the Illinois EPA, Groundwater Section, for providing a map of(More)
The rapid increase in population and developed land in the Chicago, Illinois, metropolitan area has placed a heavy demand on water resources. Water sources most likely to be developed in this region during the next few decades are shallow aquifers. Since shallow aquifers are vulnerable to surface-derived contaminants, the increase in developed land may be(More)
The nuclear reactor from the Soviet radar reconnaissance satellite, Cosmos-1402, reentered the earth's atmosphere on 7 February 1983 and disintegrated over the South Atlantic Ocean. The reactor was powered by approximately 50 kilograms of uranium-235 ((235)U). In an effort to determine the fate of the reactor core, a series of aerosol samples were collected(More)
Many communities in the western suburbs of Chicago currently obtain water from deep Cambrian-Ordovician sandstone aquifers. These aquifers are generally covered by 100-800 ft of low permeable material (aquitards), which impedes the ability of rain water to infiltrate into the aquifers. As a result, it can take decades to replenish water withdrawn from these(More)
Figure 26. Concentrations of various parameters as a function of well depth for sampled wells .47 Figure 27. Concentrations of various parameters as a function of overlying till thickness for Abstract Kendall County is currently dependent on groundwater to supply all of its communities, industries, and rural residents. incorporate sound planning and(More)
Chloride (Cl-) is a major anion found in all natural waters. It occurs naturally and is also a relatively minor contaminant. Chloride concentrations in Illinois range from less than 0.1 milligrams per liter (mg/L) in precipitation to close to 100,000 mg/L in Paleozoic brines. Chloride is non-toxic to humans, although there is a secondary drinking water(More)