Filtration efficiency of a cigarette filter with X- or Y-shaped fibers

Yang, Zhanping

doi:10.2298/tsci1904517y

Cited by 10 publications

(11 citation statements)

References 27 publications

(29 reference statements)

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“…It was more economical to employ the two-stage combined filters under the conditions of indoor sanitary. Nanofiber filters or shaped fiber filters are promising [20][21][22][23].…”

Section: Resultsmentioning

confidence: 99%

Selection of air filters for residential fresh air in China based on the control of PM2.5

et al. 2021

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Efficient filtration provides a healthy and comfortable residential environment. Based on the performance testing for filter materials commonly used in China, the mass balance equation of controlling the indoor PM2.5 concentration was set up, and the filter selection criterion was discussed. An optimal section was suggested by taking into account the economic cost, filter price, and indoor air quality.

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“…It was more economical to employ the two-stage combined filters under the conditions of indoor sanitary. Nanofiber filters or shaped fiber filters are promising [20][21][22][23].…”

Section: Resultsmentioning

confidence: 99%

Selection of air filters for residential fresh air in China based on the control of PM2.5

et al. 2021

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“…This transform makes the fractal calculus extremely simple in view of traditional calculus. Now the fractal calculus has been applied to non-linear vibration [62], biomechanics [63][64][65], electrochemical arsenic sensor [66], tsunami model [67], thermal insulation [68], fractal rate model [69], biomimic design [70,71], fractal diffusion [72], fractal filtration [73], and nanotechnology [74][75][76][77][78].…”

Section: Dimension Is Everything and Two Scale Fractal Geometrymentioning

confidence: 99%

New promises and future challenges of fractal calculus: From two-scale thermodynamics to fractal variational principle

2020

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Any physical laws are scale-dependent, the same phenomenon might lead to debating theories if observed using different scales. The two-scale thermodynamics observes the same phenomenon using two different scales, one scale is generally used in the conventional continuum mechanics, and the other scale can reveal the hidden truth beyond the continuum assumption, and fractal calculus has to be adopted to establish governing equations. Here basic properties of fractal calculus are elucidated, and the relationship between the fractal calculus and traditional calculus is revealed using the two-scale transform, fractal variational principles are discussed for 1-D fluid mechanics. Additionally planet distribution in the fractal solar system, dark energy in the fractal space, and a fractal ageing model are also discussed.

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“…The air can be considered as a porous medium, and the water molecules are diffused from the high-pressure area to the low-pressure area. The permeability velocity can be expressed as [7] dP wk dx  (7) where w is the permeability velocity, k-permeability parameter. Eq.…”

Section: Experimental Data Analysismentioning

confidence: 99%

On the mountain-river-desert relation

Mei

Liu

2021

THERM SCI

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When the Yellow River flows through Togtoh, north China, a puzzling phenomenon occurs, one side is the Hobq desert, and the other side of the river is a lush landscape of gardens. No theory can explain the desertification beside a river. Especially the river might be the main factor in the desertification. We address this challenge by establishing a mathematical model that can depict the different effects of the river and mountains on the river's both sides. The model herein takes into account the different meteorological parameters and soil parameters of the river's both sides and Earth surface's morphology. Moreover, though our focus is put the Hobq desert, the present theory on mountain-river-desert relation can also be used for combating desertification. We anticipate that the mountain-river-desert relation is much more important than vegetation restoration and human activity.

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Filtration efficiency of a cigarette filter with X- or Y-shaped fibers

Cited by 10 publications

References 27 publications

Selection of air filters for residential fresh air in China based on the control of PM2.5

Selection of air filters for residential fresh air in China based on the control of PM2.5

New promises and future challenges of fractal calculus: From two-scale thermodynamics to fractal variational principle

On the mountain-river-desert relation

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