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This paper is a critical review of research on long-distance passenger rail energy consumption that examines the factors that affect the energy intensity of rail, the comparative energy intensity of alternative modes (auto, air and bus), and the sources ...
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Oksana Mykoliuk
Pág. 116 - 123
The subject matter of the study is to find the priority tasks and to select ways to ensure the energy security of Ukraine as well as to identify its energy potential for accelerating the economic growth. The goal of the article is to study the trends and...
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Peter Adami?in,Emília Huttmanová
Pág. 7 - 18
The aim of this paper is to analyze the status and the development of energy intensity in selected countries of Central and South-eastern Europe. Reducing of energy consumption is one of the ways to ensure not only economic, but also environmental aspect...
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Min-Ren Yan and Kuo-Ming Chien
High-technology industries provide opportunities for economic growth, but also raise concerns because of their energy-demanding nature. This paper provides an integrated evaluation of both economic benefits and energy efficiency of high-technology indust...
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Alyson H. Rapp, Robert B. Sowby and Gustavious Williams
More water utilities are adopting aquifer storage and recovery (ASR) to balance long-term water supply and demand. Due to large implementation and operation costs, ASR projects need to be optimized, particularly for energy use, which is a major operating...
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Tugçin Kirant Mitic and Karsten Voss
Electricity generation from renewable energy reduces greenhouse gas emissions and, in the long term, the cost of electricity in power grids. However, there is currently no strong positive correlation between greenhouse gas intensity and electricity spot ...
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Leon Li
This paper advances a volatility-regime-switching mechanism to investigate the intensity and direction of the volatility spillover effect in carbon?energy markets. Switching between a low-volatility (LV) and high-volatility (HV) regime, our mechanism inv...
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Kateryna Deineka,Yuriy Naumenko
Pág. 39 - 48
The influence of the content of crushed material in the intra-chamber grinding fill on the efficiency of the self-oscillatory grinding process in the tumbling mill was assessed.A dynamic effect of a significant decrease in self-oscillatory action of the ...
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Oleh Smyrnov,Anna Borysenko,Irina Trynova,Iaroslava Levchenko,Anton Marchenko
Pág. 43 - 49
The paper addresses the issue of designing environmentally friendly and energy-efficient vehicles in a budget segment based on determining the technical-economic parameters. The fuel efficiency and environmental friendliness of cars have been improved an...
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Jelena M. Djokovic, Ru?ica R. Nikolic, Robert Ulewicz and Branislav Hadzima
The problem of an interface crack that approaches a three-material joint with two interfaces is analyzed in this paper. Two possible cases are considered: the crack that lies at the interface between materials A and B, approaching the joint of materials ...
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Chung-Hao Wu, Chung-Ho Huang, Yu-Cheng Kan and Tsong Yen
This study focuses on evaluating the effects of the fineness of fly ash on the strength, fracture toughness, and fracture resistance of concrete. Three fineness levels of fly ash that respectively pass sieves?no. 175, no. 250, and no. 32?were used. In ad...
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Yilin Yang, Meilan Qi, Jinzhao Li and Xiaodong Ma
This study concerns the evolution of flow field and hydrodynamic characteristics within the developing scour hole around a four-pile group with 2 × 2 arrangement. The instantaneous velocities in scour holes at four typical stages during the scouring proc...
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Nabil Benamara, Abdelkader Boulenouar, Miloud Aminallah
Pág. 60 - 67
The objective of this work is to present a numerical modeling of crack propagation path in functionally graded materials (FGMs) under mixed-mode loadings. The minimum strain energy density criterion (MSED) and the displacement extrapolation technique (DE...
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Atur P. N. Siregar,M. I. Rafiq,M. Mulheron
Pág. 65 - 71
This paper presents the experimental results in investigating the effect of specimen size (ratio of beam width to aggregate size) on the value of stress intensity factor (KIC) and fracture energy (GF) using three-point bend (TPB). A test method recommend...
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Lotfali AGHELI,Fatemeh ABDI
Pág. 134 - 141
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Gustavo A. Marrero and Francisco J. Ramos-Real
This paper studies the change in Energy Intensity (EI) of the main economic activities in the EU15 countries, which represents approximately 45% of their final energy consumption. The purpose is, first, to measure the different patterns between th...
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Yu-Ting Wu and Fernando Porté-Agel
A numerical study of atmospheric turbulence effects on wind-turbine wakes is presented. Large-eddy simulations of neutrally-stratified atmospheric boundary layer flows through stand-alone wind turbines were performed over homogeneous flat surfaces with f...
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Carlos C. Duarte and Nuno D. Cortiços
China promptly took the leading step to mitigate the spread of COVID-19, producing the first scientific guidelines assuming health above energy consumption and significantly changing HVAC/AHU operation. The research intended to fulfill the gap by measuri...
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Georgios Chantzis, Effrosyni Giama and Agis M. Papadopoulos
The EU energy and climate policy has set quantitative goals for decarbonization based on the energy efficiency and the evolution of energy systems. The utilization of demand side flexibility can help towards this direction and achieve the target of highe...
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Chao Chen, Xiaoteng Cao, Shuaibing Zhang, Zhendong Lei and Kaixu Zhao
(1) Background: The decoupling of energy consumption from economic growth in the construction industry is crucial to the sustainable development of the global construction industry. The existing studies focus on the advancements in energy efficiency by d...
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