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Piotr Lis
Pág. 2 - 6
Dear Readers,I have the pleasure of presenting to you the first issue of our research journal entitled ?Research Papers in Economics and Finance? (REF), published by the Faculty of Economics at Poznan University of Economics and Business. Caring about th...
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Jianting Zhu
A method was developed to integrate the truncated power-law distribution of solid volumetric fraction into the widely used Kozeny?Carman (KC)-type equations to assess the potential uncertainty of permeability. The focus was on the heterogeneity of porosi...
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Yuefeng Liu and Jiayi Yao
Urban catering systems constitute an important subsystem of the complex urban system. They can reveal not only the impact of urban functional structure on the catering but also the behavioral patterns of individual catering points through the exploration...
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Liang Kong, Qinglin Wu, Jie Deng, Leichao Bai, Zhongsheng Chen, Zhong Du and Mingliang Luo
With the deepening of urbanization in China, the coordinated development of cities in different regions is an important part of the sustainable development of the country, and the reasonable quantification of the unbalanced development of cities in diffe...
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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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Haotian Tan, Yanpeng Hao, Peng Zhang, Qishun Li, Wanxing Tian, Linhao Chen, Lin Yang and Licheng Li
Due to current scouring, submarine cables are prone to be exposed, suspended, and even vortex-induced vibration, which is not conducive to the safe operation of the power grid. In this contribution, the finite element simulation model of a 35 kV three-co...
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Haibo Wang, Wenqing Xu, Bing Cheng and Qi Zong
To study the particle size distribution and energy variation law of hard coal under a load, an impact compression test of hard coal specimens under different impact loading conditions was carried out using a F50 mm diameter Separate Hopkinson Press Bar (...
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Sophia-Ekaterini Avgerinou, Eleni-Apostolia Anyfadi, Georgios Michas and Filippos Vallianatos
Greece is one of Europe?s most seismically active areas. Seismic activity in Greece has been characterized by a series of strong earthquakes with magnitudes up to Mw = 7.0 over the last five years. In this article we focus on these strong events, namely ...
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Yuanxing Dai, Zhenghao Liu, Wei Zhang, Jianping Chen and Jianguo Liu
This paper investigates the problem of vibration in an axial flow waterjet propeller with high power density and low specific speed. Based on fluid?structure coupling vibration analysis, combined with modal analysis and ship tests, the unsteady fluid?str...
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Beidong Zhang, Yankun Jiang and Yexin Chen
In order to convert the marine diesel engine into an LNG (Liquefied Natural Gas)?diesel dual-fuel engine and ensure its power and emission characteristics, a new calibration method is proposed, and the fuel substitution ratio, economy and detailed partic...
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