urban perception is the result of mutual transaction between human and environment and the process of perception is developed through the three continuous steps of “sensation”, “perception” and “cognition”. in the first step (sensorial perception), the environmental signals are received via sensorial sensors and each different sense based on its own essence, performance and ability has its own ...

In this report, generalized wave breaking equations are developed using three dimensional fully nonlinear extended Boussinesq equations to encompass rotational dynamics in wave breaking zone. The derivation for vorticity distributions are developed from Reynold based stress equations.

We propose to use binary strings as an efficient feature point descriptor, which we call BRIEF. We show that it is highly discriminative even when using relatively few bits and can be computed using simple intensity difference tests. Furthermore, the descriptor similarity can be evaluated using the Hamming distance, which is very efficient to compute, instead of the L2 norm as is usually done. ...

يفكي هنأ نيبن ،ثحبلا اذه يف ةيقفأ حئارش تاطاقسإ هيمسن ام لثم باسحلا ةلهس ملاعم مادختسا ايلآ ةعوبطملا فورحلا ىلع يئوضلا فرعتلا ةلأسم ةءافكب لحت يكل ةيسأرو . ةرجش مادختساب فرعتلا متي حاجنلا لدعم ةدايزل ىرخأ تافاضإ عم ةدمعأو فوفص فذحو ميعنتو عوجر تايلآب ةموعدم رارق . و مدختسن ماظنلا بيردتل طخ نم زومر Times New Roman . دق فذحلاو ميعنتلاو عوجرلا ليعفت نإ لاًدعم ققح حجان اً زواجت 98 % نم لقأ فرعت نمزب ...

The long-term goals are to understand surf zone processes related to rip current systems through field observations. Rip currents occur commonly on most beaches and dominate many. It is recognized that beaches with straight and parallel contours are not a stable morphologic configuration whereas more complex beaches, which support the existence of rip current morphology, are stable and more com...

There is a serious problem with one of the assumptions made in the security proof of the SURF scheme. This problem turns out to be easy in the regime of parameters needed for the SURF scheme to work. We give afterwards the old version of the paper for the reader’s convenience.

The skyline, or Pareto, operator selects those tuples that are not dominated by any others. Extending relational systems with the skyline operator would offer a basis for handling preference queries. Good algorithms are needed for skyline, however, to make this efficient in a relational setting. We propose a skyline algorithm, SFS, based on presorting that is general, for use with any skyline q...

Large numbers of people all over the world read and contribute to various review sites. Many contributors are understandably concerned about privacy in general and, specifically, about linkability of their reviews (and accounts) across multiple review sites. In this paper, we study linkability of community-based reviewing and try to answer the question: to what extent are ”anonymous” reviews li...

This work described one pot syntheses of polysubstituted 2,6- dicyanoaniline and 2-(3-Oxo-1,3-diarylpropyl) malononitrile derivatives in the presence of MgO nanoparticles (NPs) under grinding conditions and microwave irradiation, respectively. The simple experimental procedure includes shorter reaction times, higher yields, lower cost and environmental friendliness. Other remarkable features ar...

Sir,?Since I perused the letter of Baboo Amrito Lall Deb, in your issue of November last, about the beneficial effect of "Amranthus Spinosa" (Kanta Nuteeya) root in Go n orrhoea, I had a strong desire to put it into my practice. As long as I was in charge of the charitable dispensary at .Teh anabad in Gya district I had seen many cases of gonorrhoea, but after a careful investigation I could pr...