نتایج جستجو برای: Small-scale effects

تعداد نتایج: 2683351  

2013
Pablo Briff Ariel Lutenberg Leonardo Rey Vega Fabian Vargas

In this work, the existing trade-off between time synchronization quality and energy is studied for both large-scale and small-scale fading wireless channels. We analyze the clock offset estimation problem using one-way, two-way and N-way message exchange mechanisms affected by Gaussian and exponentially distributed impairments. Our main contribution is a general relationship between the total ...

2010
Farzad Ebrahimi Erfan Salari Sai Sudha Ramesh Laxmi Behera Mehran Karimi Zeverdejani Yuanwen Gao

A nonlocal anisotropic elastic shell model of a microtubule (MT) has been established in this paper. The proposed model exactly expresses the persistence length, the growth rate for buckling and the buckling load which include the small scale effects in a closed form. The predicted results of our model indicate that the length-dependence of the persistence length is sensitive to the small scale...

Deflection analysis of a simply supported microbeam subjected to a concentrated load at the middle is investigated on the basis of a shear deformable beam theory and non-classical theory. Effects of shear deformation and small size are taken into consideration by hyperbolic shear deformable beam theory and modified strain gradient theory, respectively. The governing differential equations and c...

Journal: :IEEE Journal on Selected Areas in Communications 2001
Junshan Zhang Edwin K. P. Chong Ioannis Kontoyiannis

In a mobile wireless system, fading effects can be classified into large-scale (long-term) effects and small-scale (shortterm) effects. We use transmission power control to compensate for large-scale fading and exploit receiver antenna (space) diversity to combat small-scale fading. We show that the interferences across the antennas are jointly Gaussian in a large system, and then characterize ...

In this research, the bending analysis of rectangular nanoplates subjected to mechanical loading is investigated. For this purpose, the strain gradient elasticity theory with one gradient parameter is presented to study the nanoplates. From the best knowledge of authors, it is the first time that the exponential shear deformation formulation based on strain gradient elasticity theory is carried...

2012
Axel Brandenburg Dmitry Sokoloff Kandaswamy Subramanian

Several recent advances in turbulent dynamo theory are reviewed. High resolution simulations of small-scale and large-scale dynamo action in periodic domains are compared with each other and contrasted with similar results at low magnetic Prandtl numbers. It is argued that all the different cases show similarities at intermediate length scales. On the other hand, in the presence of helicity of ...

Journal: :Frontiers in Earth Science 2021

The unsaturated zone (UZ) extends across the Earth’s terrestrial surface and is central to many problems related land water resource management. Flow of through UZ typically thought be slow diffusive, such that it could attenuate fluxes dampen variability between atmospheric inputs underlying aquifer systems. This would reduce vulnerability contaminants water-related hazards. Reducing or negati...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید