A general view to converting fossil fuels to cleaner energy source by adding nanoparticles

Ağbulut, Ümit; Sarıdemir, Suat

doi:10.1080/01430750.2018.1563822

Cited by 97 publications

(53 citation statements)

References 37 publications

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“…Fossil fuels have been the basis of energy production all over the world and 85% of the energy consumption is met by fossil fuels nowadays [1,2]. Coal, as one of the most important fossil fuels, accounts for the majority of electricity generation in many countries [3].…”

Section: Introductionmentioning

confidence: 99%

Reclaiming Subsidized Land: An Evaluation of Coal Gangue Interlayers

Gong

McSweeney

2020

Advances in Materials Science and Engineering

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Rehabilitation of areas impacted by subsidence following coal mining is a pressing need in eastern China, especially where availability of suitable soil material is limited. A field experiment was established to evaluate performance of varying layered combinations of soil and coal gangue materials as measured by maize (Zea mays L.) growth and yield. Two control treatments and eight experimental treatments were constructed. All treatments had a 30 cm surface layer of topsoil. CK1 consisted of native soil material. CK2 consisted of 50 cm gangue covered by topsoil and 40 cm subsoil. Group 1 treatments (T1–T3) had a 15 cm layer of subsoil immediately below the topsoil, underlain, respectively, by progressively thicker gangue layers (20, 30, and 40 cm) overlying another 15 cm subsoil layer, in turn underlain by gangue. Group 2 treatments (T4–T7) consisted of 40 cm subsoil. T4-T5 followed the same pattern as Group 1 except that the lower subsoil layer was 25 cm thick. T6-T7 differed from T4-T5 by having 25 cm upper and 15 cm lower subsoil layers between different thicknesses of gangue. Group3 (T8) consisted of three 10 cm layer of subsoil separating 2 gangue layers and gangue layer below. Key plant performance indicators, biomass and yield, were significantly better under CK1-2 than in the other treatments (T1–T8). Below the topsoil Eh, pH and total salt content were higher and water content was less in T1–T8 than in CK1-2, reflecting the influence of gangue in 30–70 cm zone in these treatments. The nutrient content (TN, AN, TP, OP, TK, AK, and OM) of topsoil in experimental treatments was lower than or similar to that of the control treatments. Results indicate that minimizing the adverse impacts of gangue requires a combined top-subsoil cover of at least 70 cm.

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Section: Introductionmentioning

confidence: 99%

Reclaiming Subsidized Land: An Evaluation of Coal Gangue Interlayers

Gong

McSweeney

2020

Advances in Materials Science and Engineering

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“…Xiang et al studied the internal forces and deformation law of microsteel pipe piles through heaped load test and analyzed the effects of row number, row spacing, and spacing of the pile on the bearing capacity [9]. ey are also often used in heat transfer systems [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Experiment Investigation on Stress Characteristics of Grouting Microsteel Pipe Piles with Cement‐Soil Wall

Shujuan

Zhang

Bai

et al. 2020

Advances in Materials Science and Engineering

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Microsteel pipe piles are widely used in excavation support owing to their excellent bearing capacity, flexural rigidity, construction speed, and adaptability. In this study based on a project in soil-rock layers in Qingdao, China, a new type of support combining microsteel pipe piles mounted in cement-soil piles and anchors was adopted and studied. The inner force change laws and bearing capacity of microsteel pipe piles were discussed through in situ stress measurement and laboratory antibending tests on three microsteel pipe piles. It was found that the bending moment of the piles gradually increased with the foundation excavation and maximized at the pile head. The bending moment was larger at the upper and smaller at the lower part along the depth direction, indicating it is reasonable to design and calculate microsteel pipe piles by the pile-anchor system. The variation law of the foundation pit displacement with the excavation depth was monitored. The horizontal displacement of the foundation pit is the maximum at the base top, which is 6.5 mm. The flexural strength of the miniature steel tube pile after grouting is 40% higher than that of the miniature steel tube pile without grouting. It was indicated that the grouting microsteel pipe piles could be implanted in cement-soil piles, which improved the flexural rigidity of cement-soil piles and limited the deformation of foundation pits. This study provides reference for the design and construction of soil-rock foundation pit supporting projects. At the same time, it provides reference for the application of miniature steel pipe piles in other fields.

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“…The increasing urbanization rate, along with the expansion of consumerism and industrial development, have led to an increase in energy consumption in human societies. Fossil fuels are currently the main source of energy worldwide [ 1 ]. This leads to the instability of environmental conditions and reduces the success of long-term plans because of the non-renewable nature of these fuels [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

Investigating climatic changes of the wind regime over Western Iran

Maryanaji¹,

Hamidi

2020

BMC Res Notes

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Objective The aim of the present study was to reveal changes in the wind regime by investigating wind-speed data from meteorological stations in western Iran and comparing them in the last three decades (1986–2015). Results Two main groups of daily cycles were identified; one group with a single peak and one group with two or more peaks. Using spectral decomposition technique, it was revealed that the heterogeneity observed in the area in terms of altitude and topography results in differences in the density of the spectra with similar frequencies. Two main daily cycles were also identified for each station. Although there were low frequencies, the intensity of the waves at the examined stations was the consequence of the interaction between the frequency, period, and distribution space. By evaluating harmonics in the area, it was revealed that the variance of the first harmonic is maximized in the south and southwest, while the variance of the second harmonic is maximized in the north and northwest. The positive value of the trend in the first harmonic indicated that the trend of the variance for the first harmonic has increased in the central and eastern parts and has decreased in the northern and western parts.

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A general view to converting fossil fuels to cleaner energy source by adding nanoparticles

Cited by 97 publications

References 37 publications

Reclaiming Subsidized Land: An Evaluation of Coal Gangue Interlayers

Reclaiming Subsidized Land: An Evaluation of Coal Gangue Interlayers

Experiment Investigation on Stress Characteristics of Grouting Microsteel Pipe Piles with Cement‐Soil Wall

Investigating climatic changes of the wind regime over Western Iran

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