(paper pages 133-156) zagros active fold-thrust belt lies on the northern margin of the arabian continental crust it is a young fold-thrust mountain belt currently shortening, thickening and uplifting as a result of the collision of the arabian and iranian plates. rethickening of crust during collisional orogenies could have been carried out by reversal of fault motion along the mesozoic normal...

Recent observations have shown that shear waves trapped within lowvelocity fault zones may be the most sensitive measure of fault-zone structure (Li e t al. , 1994a, 1994b). Finite-difference simulations demonstrate the effects of several types of complexi ty on observations of fault-zone trapped waves. Overlying sediments with a thickness more than one or two fault-zone widths and fault-zone s...

A general scheme to perform universal, fault-tolerant quantum computation within decoherence-free subspaces (DFSs) is presented. At most two-qubit interactions are required, and the system remains within the DFS throughout the entire implementation of a quantum gate. We show explicitly how to perform universal computation on clusters of the four-qubit DFS encoding one logical qubit each under s...

Symmetric graphs, such as the n-dimensional Boolean hypercube Qn, and the cube-connected cycles, have been widely used as processor or communication interconnection networks. For designing, analyzing and improving such networks, Akers and Krishnamurthy proposed a formal grouptheoretic model in [1]. Based on the model, the n-dimensional bubble-sort graph is proposed as one of those classes of ne...

In this paper, we propose new fast handover authentication scheme with privacy preservation to improve the capabilities of IEEE 802.16m network. New metric is presented for handover authentication protocols in wireless networks. It’s the required time for base station and mobile station to detect the undesirable messages. We propose a new scheme which gives a minimum time of detection to these ...

In this contribution we investigate the problem of simultaneous observer based sensor fault reconstruction and state estimation of a class of linear time-varying (LTV) systems that are skew-symmetric models. The main features concern the use of a bank of observers to detect and isolate faulty sensors and in the same time provide unbiased state estimation. On the other hand, we introduced a swit...

the nnw-trending dena fault, with 140 km length, cuts the major structures of zagros fold-thrust belt in borujen region. the fault has divided the region in two zones, in which different structural, andmorphological features as well assedimentation and seismtectonic characteristics have developed. this study presents a new interpretation for the kinematics of dena fault based on field evidence....

This paper studies the depth of noisy decision trees in which each node gives the wrong answer with some constant probability. In the noisy Boolean decision tree model, tight bounds are given on the number of queries to input variables required to compute threshold functions, the parity function and symmetric functions. In the noisy comparison tree model, tight bounds are given on the number of...

A range of ^110& symmetric tilt grain boundaries ~GB’s! are investigated in several fcc metals with simulations and high-resolution electron microscopy. Boundaries with tilt angles between 50.5° and 109.5° dissociate into two boundaries 0.6 to 1.1 nm apart. The dissociation takes place by the emission of stacking faults from one boundary that are terminated by Shockley partials at a second boun...

The ingress and egress nodes in an all-optical network have an electronic inand egress part and an optical switch. This work analyses various architectures for interconnection of the "electronic" and "optical" parts of the network in order to tolerate single optical switch failures and single optical link failures. The architectures studied are: non-redundant (reference), fault tolerant optical...