− Ordinary t-timed Petri Nets are used for modeling, analysis and synthesis of random topology production systems and networks. Each production system is first decomposed into production line (transfer chain), assembly, disassembly and parallel machines modules and then their corresponding modular Petri Net models are derived. The overall system PN model is obtained via synthesis of the generic...

Abstract: For each n ≥ 1, let {Xn,j , j ≥ 1} be i.i.d. Bernoulli random variables with P{Xn,1 = 1} = pn = 1 − qn = 1 − P{Xn,1 = 0}, 0 < pn < 1. Define Wn,mn = ∑mn j=1 (Rn,j −an), where Rn,j = inf{k ≥ 0 : Xn,j+k = 0} is the number of success runs starting at j, mn is a sequences of positive integers, and an = pn/qn. We show that, under the condition mnpn → ∞, the central limit theorem Wn,mn σmn ...

Hop, an essential ingredient in most beers, contains a number of prenylflavonoids, among which 8-prenylnaringenin (8-PN) would be the most potent phytoestrogen currently known. Although a number of health effects are attributed to these compounds, only a few reports are available about the bioavailability of prenylflavonoids and the transformation potency of the intestinal microbial community. ...

Let P be a simple, stationary, clustering point process on Rd in the sense that its correlation functions factorize up to an additive error decaying exponentially fast with the separation distance. Let Pn := P ∩Wn be its restriction to windows Wn := [− 1/d 2 , n1/d 2 ] d ⊂ Rd. We consider the statistic H n := ∑ x∈Pn ξ(x,Pn) where ξ(x,Pn) denotes a score function representing the interaction of ...

There is at present no viable theory whereby a single star with MMS < 2.3 ± 0.3 M can sustain a PN-forming superwind with Ṁ > 3×10−5 M yr−1 at the tip of the AGB that can eject the last ∼0.3 M of envelope mass. We propose that a binary companion can not only result in non-spherical PN, but more importantly provide the AGB mass loss rate enhancement that is required to create a visible PN. We pr...

The well-known phenomenological dynamic equation for the nuclear shape parameter was derived from first principles with the aim of obtaining the microscopic or many-body expressions for inertia B, deformation force f , and friction coefficient γ of collective motion in hot nuclei. Nuclear evolution, viewed as a sequence of quasiequilibrium stages, is described with the aid of the density matrix...

BACKGROUND Pronuclear (PN) zygote morphology has been proposed as a useful tool for selecting the best embryos for transfer. METHODS PN morphology was recorded in 888 zygotes and classified according to similar/different PN size [groups A (n = 816) and B (n = 72)] and to the number, distribution and synchrony of nucleolar precursor bodies (NPB): subgroup I, pronuclei with 3-4 polarized NPB; s...

OBJECTIVE To compare overall physical function, including gait speed and peripheral nerve function, between diabetic chronic kidney disease (CKD) patients and nondiabetic CKD patients and to investigate the association between gait speed and peripheral nerve function in CKD patients. METHODS Sixty adult CKD patients (35 with and 25 without diabetes), who received maintenance hemodialysis (HD)...

Parenteral nutrition (PN) line sepsis is a common and yet poorly managed complication in hospitalised patients receiving PN. Making a clinical diagnosis is difficult as the clinical picture can be very non-specific and definitions of what constitutes line infection can vary. Once there is clinical suspicion, proving it with microbiological techniques is not an exact science. Traditional techniq...

For the requirements of portable emission measurement system (PEMS) accuracy for limits and methods emissions from light-duty vehicles(CHINA 6), based on vehicle test in steady-state conditions WLTC PEMS gaseous pollutants, mass flow rate , particle number (PN) verify measurement. The results showed that relative errors CO, CO2, NOx, fuel consumption were −5.49%, 2.53%, 10.55%, 2.09% −2.79%. PN...