Labile, 'high-quality', plant litters are hypothesized to promote soil organic matter (SOM) stabilization in mineral soil fractions that are physicochemically protected from rapid mineralization. However, the effect of litter quality on SOM stabilization is inconsistent. High-quality litters, characterized by high N concentrations, low C/N ratios, and low phenol/lignin concentrations, are not c...

today, environmental crisis and loss of natural resources are the principle causes of the creation of environmental management systems. the optimal management of natural resources requires the assessment and classification of ecological and environmental potentials. using this method, the abilities and restrictions of resources can be recognized, and their future trends can be predicted. nebka ...

Maintaining spanning trees in a distributed fashion is central to many networking applications and selfstabilizing algorithms provide an elegant way of doing it in fault-prone environments. In this paper, we propose a self-stabilizing algorithm for maintaining a spanning tree in a distributed fashion for a completely connected topology. Our algorithm requires a node to process O(1) messages on ...

In this paper, we address the unison problem. We consider the self-stabilizing algorithm proposed by Boulinier et al. We exhibit a bound on the step complexity of its stabilization time. In more details, the stabilization time of this algorithm is at most 2Dn + (α + 1)n + (α− 2D)n steps, where n is the number of processes, D is the diameter of the network, and α is a parameter of the algorithm.

We reduce the problem of proving the convergence of a randomized self-stabilizing algorithm under k-bounded policies to the convergence of the same algorithm under a specific policy. As a consequence, all k-bounded schedules are equivalent : a given algorithm is self-stabilizing under one of them if and only if it is self-stabilizing under any of them.

This paper deals with quadratic stabilization of discrete-time multiple-input (MI) systems by means of quantized static feedback. We consider the minimization of quantization density, which is still an open problem for MI systems. Our first contribution in this regard is to partially derive the structure that a quantizer that minimizes density for a MI system should have. The second and main co...

The SCOLE (NASA Spacecraft Control Laboratory Experiment) model is considered the best model for the coupled system consisting of a flexible beam with one end clamped and the other end linked to a rigid body. This model has been studied extensively, with most papers assuming that the flexible beam is uniform. In our study we allow the coefficients of the beam equation to vary with position, lik...

A snap-stabilizing algorithm, regardless of the initial configuration of the system, guarantees that it always behaves according to its specification. We consider here the locally shared memory model. In this model, we propose the first snap-stabilizing Propagation of Information with Feedback (PIF) algorithm for rooted networks of arbitrary connected topology which is proven assuming the distr...

There exists a critical transition before dramatic deterioration of complex dynamical system. Recently, method to predict such shifts based on High-Dimension Low-Sample-Size (HDLSS) data has been developed. Thus the prediction, it is important make system more stable by feedback control just transitions, which we call re-stabilization. However, re-stabilization cannot be achieved traditional st...

In this paper, we examine a one-dimensional system of equations for discrete gas model (the Godunov–Sultangazin system). The is the Boltzmann kinetic equation consisting three groups particles. model, momentum preserved whereas energy not. We prove existence unique global solution to Cauchy problem perturbation equilibrium state with periodic initial data. For first time, find rate stabilizatio...