Clock skew is an increasing concern for high-speed circuit designers. Circuit designers use transparent latches and skew-tolerant domino circuits to hide clock skew from the critical path and take advantage of shared portions of the clock network to budget less skew between nearby elements than across the entire die, but current timing analysis algorithms do not handle correlated clock skews. T...

Growing evidence indicates parasite inclusion in food-web analyses is a logical default. Comparisons of food webs including and excluding host-parasite interactions demonstrate the influence of parasites on community dynamics. Although including parasites is undoubtedly informative, the necessary level of detail exists for only a handful of systems. In a recent Ecology Letters article, Lafferty...

CASSCF/MRCI/aug-cc-pVQZ~no g! and RCCSD~T!/aug-cc-pVQZ potential energy functions were reported for the à B1 and X̃ A1 states of CF2 , respectively. Vibrational wave functions of the symmetric stretching and bending modes of the two states of CF2 were obtained in variational calculations, employing Watson’s Hamiltonian for a nonlinear molecule and anharmonic vibrational wave functions expressed ...

This paper reviews major issues in the implementation of e-manufacturing, particularly the design aspects. It will examine recent progress, drawing out particular issues that are being addressed. Use will be made of the work by the author and colleagues to devise rule-based design and Internet-based control of machines to illustrate how these developments affect the integrated e-manufacturing e...

Design spectrum is known as an essential tool in earthquake engineering for calculation of maximum (design) responses in a structural system. Soil-structure interaction (SSI), as a phenomenon of coupling of responses of a structure and its underlying soil, was explored after introduction of design spectra and has not been taken into account in developing a design spectrum traditionally. To cons...

With a few exceptions, the micro total analysis systems (mTASs) currently available have failed to live up to the ideal of the miniaturization of multiple laboratory operations onto a single chip. These systems perform sample preparation off chip and only pursue a single function. Hence, the definitive challenge is to interface the processing of real-world biological samples with downstream app...

Limb dystonia can occur in primary dystonias or as a complication in neurodegenerative diseases e.g. Huntington’s disease, Wilson’s disease or Parkinson syndromes or other diseases like structural brain damage, peripheral trauma or drug-induced. Any muscle group under voluntary control can be affected, dystonic muscle overactivity can occur during rest, be aggravated by movement, or occur only ...