Shadow fading is a well known problem in wireless sensor networks (WSN) and ad hoc networks since the communicating devices often are at street-level where the surrounding buildings often obstruct incoming radio waves. Therefore, accurately modeling shadow fading is an important requirement for the optimal design of such networks. Because the height of building is the most important parameter t...

the aim of this paper is to investigate a novel approach for output feedback damping controller design ofstatcom in order to enhance the damping of power system low frequency oscillations (lfo). the design ofoutput feedback controller is considered as an optimization problem according with the time domain-basedobjective function which is solved by a honey bee mating optimization algorithm (hbmo...

Lateralization touches virtually every function we think makes us human and interacts fundamentally with development. Here we connect lateralized function to anatomical asymmetries, and connect those anatomical asymmetries to temporal asymmetries in development. Our differential encoding (DE) model (Cipollini, Hsiao, & Cottrell, 2012; Hsiao, Cipollini, & Cottrell, 2013; Hsiao, Shahbazi, & Cottr...

Invisibility devices based on coordinate transformation have opened up a new field of considerable interest. We present here the first practical realization of a low-loss and broadband acoustic cloak for underwater ultrasound. This metamaterial cloak is constructed with a network of acoustic circuit elements, namely, serial inductors and shunt capacitors. Our experiment clearly shows that the a...

This paper presents new applications of low-voltage and low-power multiple-input multiple-output differential difference transconductance amplifier (DDTA). The bulk-driven MOS transistor (MIBD MOST) technique provides the active device that simplifies application’s topology reduces its power consumption. proposed DDTA has been used to realize single-output shadow filter. Both voltage- transimpe...

While high-resolution remote sensing images have increased application possibilities for urban studies, the large number of shadow areas has created challenges to processing and extracting information from these images. Furthermore, shadows can reduce or omit information from the surface as well as degrading the visual quality of images. The pixels of shadows tend to have lower radiance respons...

in a fictional movie, shadow is not only a technical and thematic concept, but also one of the most illustrative and expressing aesthetic elements of the movie. shadows vast dimensions have led to various discussions and studies along the history of cinema. the main theory of this essay is that a shadow is a comprehensible phenomenon whose interpretation and understanding are greatly essential ...