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Dariusz Zmyslowski and Jan M. Kelner
The development of new telecommunication services requires the implementation of advanced technologies and the next generations of networks. Currently, the Long-Term Evolution (LTE) is a widely used standard. On the other hand, more and more mobile netwo...
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Andrea Adriani, Stefano Serra-Capizzano and Cristina Tablino-Possio
We consider the Helmholtz equation and the fractional Laplacian in the case of the complex-valued unbounded variable coefficient wave number μ" role="presentation" style="position: relative;">??µ
µ
, approximated by finite differences. In a rec...
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Luís P. N. Mendes, Ana M. C. Ricardo, Alexandre J. M. Bernardino and Rui M. L. Ferreira
We present novel velocimetry algorithms based on the hybridization of correlation-based Particle Image Velocimetry (PIV) and a combination of Lucas?Kanade and Liu?Shen optical flow (OpF) methods. An efficient Aparapi/OpenCL implementation of those method...
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Lidong Zhang, Zhengcong Feng, Yuze Zhao, Xiandong Xu, Jiangzhe Feng, Huaihui Ren, Bo Zhang and Wenxin Tian
During the expansion of a wind farm, the strategic placement of wind turbines can significantly improve wind energy utilization. This study investigates the evolution of wake turbulence in a wind farm after introducing smaller wind turbines within the ga...
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Tianwei Huang, Mengxing He, Kan Hong, Yingtien Lin and Pengcheng Jiao
Curved channels and aquatic vegetation are commonly present in the riverine environment. In this study, the effects of vegetation density and distribution on the hydrodynamic characteristics of a mixed layer developed over a 180-degree curved channel wer...
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Carlos Enrique Valencia Murillo, Miguel Ernesto Gutierrez Rivera, Nicolas Flores Samano and Luis David Celaya Garcia
This contribution presents a finite element shell model capable of performing linear vibration analyses of shell-type structures made of functionally graded material (FGM). The model is based on the seven-parameter spectral/hp finite element formulation,...
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Baoyun Zhang, Junzhi Wang, Ruolin Zhang, Yasong Li, Xiangke Kong and Yaci Liu
Aquifer diffusivity is a basic physical parameter used in hydrogeological calculations and is important for the evaluation and rational utilization of water resources, pollution prevention, and wetland protection. In this study, with the assumptions of a...
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Zheng Ma, Zelin Zhang, Zhaohui Zhang, Zhiqiang Song, Yanbin Liu, Yaoming Li and Lizhang Xu
Cleaning is one of the most important steps in the harvesting process, and the prolonged and high-load operation of the vibrating sieve can decrease its reliability. To uncover the structural flaws of the cleaning sieve in the crawler combine harvester a...
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Jinwook Lee, Geonsoo Moon, Jiho Lee, Changhyun Jun and Jaeyong Choi
This study was aimed at exploring different indices to quantify flow fluctuations and calculate long-term flow indicators (L-FFI). Three approaches were considered to calculate the indicators: Method (1)?calculate the annual index and then average it; Me...
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Victor Dyomin, Yuri Morgalev, Igor Polovtsev, Sergey Morgalev, Tamara Morgaleva, Alexandra Davydova and Oksana Kondratova
Earlier, we showed that the registration of the behavioral responses of autochthonous mesozooplankton communities in situ is a more dynamic methodological approach in the biological assessment of the environmental well-being of aquatic ecosystems, as wel...
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