Westudy conditions underwhich the solutions of a timevarying linear dynamic systemof the formx (t)=A(t)x(t) are stable on certain time scales.We give sufficient conditions for various types of stability, including Lyapunov-type stability criteria and eigenvalue conditions on “slowly varying” systems that ensure exponential stability. Finally, perturbations of the unforced system are investigate...

for maintaining of zagros forests role in wild life, water and soil conservation, the suitable solutions and methods for assessing the existing conditions and planning for management of this forests should be given. to detection of suitable sampling method to study tree density in the northern zagros forest, blake forest, in baneeh region, kurdistan province, and west of iran was selected. 40 s...

Different chemical attributes, measured via total soluble solids (TSS), acidity, vitamin C (VitC), sugars (Tsugar), and reducing (Rsugar), were determined for three groups of citrus fruits (i.e., orange, mandarin, acid); each group contains two cultivars. Artificial neural network (ANN) multiple linear regression (MLR) models developed TSS, VitC, Tsugar, Rsugar from fresh by applying different ...

Objectives: Cerebellar infarction is an ischemic type episode involving the three main cerebellar arteries. An infarction in each of these arteries causes different but common symptoms, requiring a particularly important contribution of physiotherapy to its treatment. This overview aimed to investigate the effectiveness of physiotherapy programs on the symptoms of patients with cerebellar infar...

In this paper, we explain the detail analysis procedure of submission 1(Previous predicted results submission) of Task A1. We are trying to induce decision tree models to predict pc:numberOfTenders. Since the type of target attribute is non-negative integer value, we use the variance reduction as the attribute selection criteria. Input attributes are defined based on structure information of Pu...

This study aims to characterize the axial monotonic and cyclic tensile behavior of bolted steel connections laminated timber bamboo, using slotted-in plates, provide a high-fidelity simulation finite-element modeling. Forty-eight experimental tests were conducted, including eight different configurations, varying in material (Laminated Veneer Lumber (LVL) Glued Laminated Bamboo (glubam)), numbe...

The ultimate goal of an agriculture research system is on-time, correct and clear response to the problems and expectations of agriculture household and stakeholders. In this respect, though, due to variation and frequency of the problems and expectations and as well as many limitations such as financial deficit, short time and shortage in work force and equipments etc, the system cannot be tho...

The minimum cost spanning tree game (mcst-game) is a well-known model within operations research games that has been widely studied in the literature. In this paper we introduce the multi-criteria version of the mcst-game as a setvalued TU-game. We prove that the extension of Bird s cost allocation rule provides dominance core elements in this game. We also give a family of core solutions that ...

It is demonstrated in this paper that the encoding complexity advantage of a variable-length tree-structured vector quantizer (VLTSVQ) can be enhanced by encoding low dimensional subvectors of a source vector instead of the source vector itself at the nodes of the tree structure without signiicantly sacriicing coding performance. The greedy tree growing algorithm for the design of such a vector...