Bleeding is minimal, even in patients with coagulopathies due to the tight approximation of the tube to the tissue.
However, with the complex expression of the MGF of the harmonic mean of two exponential random variables given in [10, ], one may not be able to perform the tight approximation of SEP leading to relaying gain as our result in (A.6) does.
In this review, we summarise a methodology for linking systematically these two levels starting from the first-principles density functional theory and proceeding via the screened tight-binding approximation to development of reliable and transferable many-body interatomic bond-order potentials.
F can be maximized using standard variation schemes such as expectation maximization to furnish a tight-bound approximation to the log-evidence (given the linear, Gaussian model, Friston et al. [ 2007, 2008]; see also Wipf and Nagarajan [ 2009]).
This finding enabled us to calculate the asymptotically tight approximation for SEP, leading to deriving the performance gain of HDAF over ADF and AF systems.
In particular, on instances drawn from the rectilinear (respectively Euclidean) plane, the MST heuristic is shown to have tight approximation factors of 3, respectively 4.
Since this estimator is intractable from a numerical point of view, we propose a tight approximation of it easy and fast to implement.
We need to calculate the TGVP for a relatively large number of time-slots K to obtain a tight approximation.
Thanks to the asymptotically tight approximation of the outage performance, that we develop for both maximal ratio combining (MRC) and selection combining (SC) receivers, we can formulate the original optimization problems using geometric programming (GP).
We note that (14) is actually a tight approximation and its tightness is evaluated in Section 4. From the expression in (14), we make several observations as listed below.
