In the past years there has been significant research on developing compact data structures for summarizing large data streams. A family of such data structures is the so-called sketches. Sketches bear similarities to the well-known Bloom filters [2] and employ hashing techniques to approximate the count associated with an arbitrary key in a data stream using fixed memory resources. One limitat...

In corn wet milling, dry matter can be separated from liquids in process streams with centrifuges or vacuum belt filtration (VBF). Because separations usually are not complete, dry matter can be lost in the liquid streams (overflow from the gluten thickener centrifuge and filtrate from VBF). This represents a loss of nutrients, especially protein, to low valued coproducts and reduces quality of...

Introduction Switched reluctance motors (SRMs) have several advantages (rotor simplicity, high speed operation, ease of repairing, high degree of independence between phases, short end-turn, and low inertia) and used for aerospace systems, marine propulsion systems, linear drives, mining drives, hand held tools and home utility applications. However, a major disadvantage of SRM is vibration pro...

One-step purification and desalination The of water for drinking purposes can require multiple filtration steps technologies to remove contaminants such as salts heavy metals. Some could have value if recovered, but these are often discharged in the waste streams. Uliana et al. describe a general approach fabrication robust, tunable, adsorptive membranes through incorporation porous aromatic fr...

This paper describes the DELFT-JAVA processor and the mechanisms required to dynamically translate JVM instructions into DELFT-JAVA instructions. Using a form of hardware register allocation, we transform stack bottlenecks into pipeline dependencies which are later removed using register renaming and interlock collapsing arithmetic units. When combined with superscalar techniques and multiple i...

We conducted NO3 – stable isotope tracer releases in nine streams with varied intensities and types of human impacts in the upstream watershed to measure nitrate (NO3 ) cycling dynamics. Mean ambient NO3 – concentrations of the streams ranged from 0.9 to 21,000 lg l NO3 – N. Major N-transforming processes, including uptake, nitrification, and denitrification, all increased approximately two to ...