As ubiquitous computing continues to evolve, we are faced with the challenge of catering to the varied needs of an ever-increasing pool of diverse devices. Though the constraints and requirements for different devices may vary, performance and software quality are of paramount importance. Understanding program behavior is vital to both optimization amd program testing. Recently, there has been ...

Abstract. In this paper we consider narrow band, active array imaging of weak localized scatterers when only the intensities are recorded at an array with N transducers. We consider that the medium is homogeneous and, hence, wave propagation is fully coherent. This work is an extension of our previous paper [21] where we showed that using linear combinations of intensityonly measurements, obtai...

We show theoretically that flexoelectricity stabilizes blue phases in chiral liquid crystals. Induced internal polarization reduces the elastic energy cost of splay and bend deformations surrounding singular lines in the director field. The energy of regions of double twist is unchanged. This in turn reduces the free energy of the blue phase with respect to that of the chiral nematic phase, lea...

We review our recent theoretical works on the the quantum spin Hall effect. First we compare edge states in various 2D systems, and see whether they are robust or fragile against perturbations. Through the comparisons we see the robust nature of edge states in 2D quantum spin Hall phases. We see how it is protected by the Z2 topological number, and reveal the nature of the Z2 topological number...

Recent results obtained from B decays on the phases of weak couplings described by the Cabibbo-Kobayashi-Maskawa (CKM) matrix are discussed, with particular emphasis on α and γ = π − β − α. EFI 02-96 hep-ph/0207197 Presented at CERN CKM Workshop 13–16 February 2002

—I recognize four phases of ethnobiology: I, II, III, and IV. Ethnobiology I begins well before the formal naming of ethnobiology as a scholarly endeavor at the end of the 19th century. This initial phase has been widely characterized, albeit over simply, as essentially utilitarian. Ethnobiology II was elaborated in the cognitive/linguistic anthropology of the 1960s. Ethnobiology III integrates...

In gaseous state, the particles are randomly distributed in free space. There is no correlation between the particles that move in independent trajectories bouncing off of each other. The gases can not be seen because average distance between particles is larger than the wave length of visible light. In liquids, the particles are also distributed randomly in space but with specific correlation ...

In the recent years we have learned that light quarks play a crucial role in QCD-like theories, transforming it to many different phases. We review what is known about them, both from lattice and non-lattice approaches. A particularly simple mechanism of the QCD chiral restoration phase transition is discussed first: it suggests that it is a transition from randomly placed tunneling events (ins...

This new method which is worked out in Isfahan University of Technology, makes it possible to analyze the phases quantitatively in minerals and powdered materials by X Ray Diffraction and without any reference material. To identify n unknown phases, n different combinations of phases, from fine and coarse fractions, or etc., must be obtained. Amorphous phases should not exist. Intensity ratios ...