This paper discusses a statistical approach to static timing analysis. Delays of gates and wires are modeled by stochastic values instead of the triple best case, typical and worst case delay. This has the advantage of avoiding the overly pessimistic (optimistic) outcome of traditional worst (best) case calculations. The paper proposes a new scheme to perform the delay calculations with stochas...

Noise effects such as power supply and crosstalk noise can significantly impact the performance of deep submicrometer designs. Existing delay testing and timing analysis techniques cannot capture the effects of noise on the signal/cell delays. Therefore, these techniques cannot capture the worst case timing scenarios and the predicted circuit performance might not reflect the worst case circuit...

Various approaches to quantum gravity suggest the possibility of violation of Lorentz symmetry at very high energies. In these cases we expect a modification at low energies of the dispersion relation of photons that contains extra powers of the momentum suppressed by a high energy scale. These terms break boost invariance and can be tested even at relatively low energies. We use the light curv...

A graph G is said to be Hamiltonian-connected if there is a Hamiltonian path between every two distinct nodes of G. Let F denote the set of faulty nodes of G. Then, G is |F |-node Hamiltonianconnected if G−F is Hamiltonian-connected. We use K(d, t) to denote a WK-recursive network of level t, each of whose basic modules is a d-node complete graph. Compared with other networks, it is rather diff...

Multimedia applications in multihop wireless networks have great market potential. Multiple channels and multiple radios are commonly used for exploring multimedia transmissions in multihop wireless networks. Split transmission allows multiple channels attached to different radios simultaneously to be used, and so to achieve a fundamentally improved transmission capacity. The goal of this paper...

The Real-time Channel Administration Protocol (RCAP) provides control and administration services for the Tenet real-time protocol suite, a connection-oriented suite of network and transport layer protocols for realtime communication. RCAP performs per-channel reservation of network resources based on worst-case analysis to provide hard guarantees on delay, jitter, and packet loss bounds. It us...

This paper describes a fully static Complementary Metal-Oxide Semiconductor (CMOS) implementation of a Ling type adder. The implementation described herein saves up to one gate delay and always reduces the number of serial transistors in the worst-case (critical) path over the conventional carry look-ahead (CLA) approach with a negligible increase in hardware.

Delay propagation is a well-known phenomenon within the global air transportation system. Specifically, because of equipment and crew connectivity, a flight delayed early in the day can induce delays to multiple flights later in the day. In this paper we investigate this phenomenon by developing a statistical model that predicts the average flight delay after a given breakpoint time b, based on...

The objective of this study was to evaluate the effects of antimicrobial drug use, gastric acid-suppressive agent use, and infection control practices on the incidence of Clostridium difficile-associated diarrhea (CDAD) in a 426-bed general teaching hospital in Northern Ireland. The study was retrospective and ecological in design. A multivariate autoregressive integrated moving average (time-s...