BackgroundEndotracheal intubation is a common lifesaving procedure. An in situ endotracheal tube (ETT) must be secured position to avoid displacement and potentially life-threatening complications. Adhesive tapes form the most intraoperative ETT stabilization methods. Limited published data are available guide clinical decision regarding taping method. We performed an interventional study aimin...

In this paper, overlapped circular spatially-coupled low-density parity-check codes (OC-LDPC) are proposed and their modified coupled codes are derived, which show better performance compared with the spatially-coupled low-density parity-check (SC-LDPC) codes. It is known that the SC-LDPC codes show asymptotically good performance when the chain length is sufficiently large. However, a large ch...

It has been shown experimentally that boundary friction is proportional to load (commonly known as Amontons’ law) for more than 500 years, and the fact it holds true over many scales (from microns kilometres, from nano-Newtons Mega-Newtons) materials which deform both elastically plastically subject of much research, in order fully understand its wide applicability (and also find any deviations...

in this paper, the optimal adaptive leader-follower consensus of linear continuous time multi-agent systems is considered. the error dynamics of each player depends on its neighbors’ information. detailed analysis of online optimal leader-follower consensus under known and unknown dynamics is presented. the introduced reinforcement learning-based algorithms learn online the approximate solution...

The controllability and observability Gramians of time-invariant linear systems are given by the solutions of two coupled Lyapunov equations. These Gramians play an essential role in many areas of control theory such as computing Hankel singular values, system balaning, and related model reduction algorithms. We investigate the numerical solution of coupled Lyapunov equations by iterations for ...

Fundamental problems of periodicity and transient process to periodicity of chaotic trajectories in computer realization with finite computation precision is investigated by taking single and coupled Logistic maps as examples. Empirical power law relations of the period and transient iterations with the computation precisions and the sizes of coupled systems are obtained. For each computation w...

New measurements of the velocity dispersion of the globular cluster ω Centauri allow to trace its gravitational potential down to an acceleration of 8 × 10 cm s. It is found that the dispersion profile remains flat well inside the tidal radius as soon as the acceleration of gravity approaches a0, a result that finds its simplest explanation within the contest of MOND. A similar behavior is obse...