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Present situation and classification of piezoelectric pump

Fang YE, Shouyin WANG, Wei CHENG, Qixiao XIA, Jianhui ZHANG,

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 4,   Pages 420-429 doi: 10.1007/s11465-009-0052-7

Abstract: development and present situation of piezoelectric pumps in the latest 30 years and finally puts forward a newA new valveless piezoelectric pump nowadays becomes a hot issue in scientific research.New forms of piezoelectric pumps, different from traditional ones, are only at the stage of conception

Keywords： piezoelectric pump     development and present situation     new classification method     valveless piezoelectricpump     new forms of piezoelectric pump    

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Unnormalized and normalized forms of gefura measures in directed and undirected networks

Raf GUNS,Ronald ROUSSEAU

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 4,   Pages 311-320 doi: 10.1631/FITEE.1400425

Abstract: In this article we make the following new contributions to their study: (1) We systematically study unnormalized

Keywords： Networks subdivided in groups     Partitions     Gefura measures     Q-measures     Brokerage role     Directed and undirected networks     Brandes’     algorithm    

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Spatial distribution of phosphorus forms in sediments with different distances to the estuary of the

Shaoyong LU, Xiangcan JIN, Fengchang WU, Jing SI, Jianning GUO,

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 3,   Pages 295-300 doi: 10.1007/s11783-010-0231-0

Abstract: Effects of human activity on the distribution of phosphorus (P) forms were investigated for the sediments

Keywords： estuary sedimentary area     phosphorus (P)     spatial distribution     human activity     the Dianchi Lake    

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Characterization of phosphorus species and modeling for its organic forms in eutrophic shallow lake sediments

Hongguang CHENG,Xiao PU,Yiting CHEN,Fanghua HAO,Liming DONG

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 6,   Pages 905-921 doi: 10.1007/s11783-014-0650-4

Abstract: Variations of phosphorus (P) and its species in surface sediment of Baiyangdian Lake, a eutrophic shallow lake located in North China, were investigated through combination of field survey and numerical calculation based on cluster analysis. P fractionation was performed by a sequential extraction scheme, categorized as loosely bound P (NH Cl-P), reductant soluble P (BD-P), metallic oxide bound P (NaOH-P), calcium bound P (HCl-P) and organic P (Org-P). P concentrations exhibited regional similarities and a total of four sub-areas were identified in which the same rank was HCl-P>Org-P>BD-P ≈ NaOH-P>NH Cl-P. NH Cl-P, BD-P and Org-P were found to contribute to P enrichment in overlying water column. Specifically, labile Org-P acted as a potential pool with a greater contribution in aerobic layer compared to anaerobic layer. A hysteresis (lag= 4 months) existed when labile Org-P concentration was negatively correlated with aerobic layer thickness. In view of magnitude of identified P contributors in sub-areas, higher potential of P release was present in Fuhe River and Tang River estuary areas. On the basis of calibration and verification, the mathematical model with parameter settings applied in this study was improved to serve as a tool for limnology management and eutrophic control.

Keywords： phosphorus fractionation     variation characteristics     modeling     sediment     Baiyangdian Lake    

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Micro/nanofluidics-enabled energy conversion and its implemented devices

Yang YANG, Jing LIU

Frontiers in Energy 2011, Volume 5, Issue 3,   Pages 270-287 doi: 10.1007/s11708-010-0126-6

Abstract: According to the conservation law, energy not only exists in various forms but is also capable of beingThe common forms of energy are mechanical energy, chemical energy, internal energy, electrical energynanofluid-enabled energy conversion devices is reviewed based on the transformation between different forms

Keywords： micro/nanofluid     different energy forms     energy conversion     medium role    

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Comparison between linear and non-linear forms of pseudo-first-order and pseudo-second-order adsorption

Junxiong LIN , Lan WANG ,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 3,   Pages 320-324 doi: 10.1007/s11783-009-0030-7

Abstract: The best-fit equations of linear and non-linear forms of the two widely used kinetic models, namely pseudo-first-orderThe results show that the non-linear forms of pseudo-first-order and pseudo-second-order models weremore suitable than the linear forms for fitting the experimental data.may have been distorted by linearization of the linear kinetic equations, and thus, the non-linear forms

Keywords： adsorption     pseudo-first order     pseudo-second order     kinetic model     linear method     non-linear method    

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Forms and Aesthetics of Bridges Feature Article

Man-Chung Tang

Engineering 2018, Volume 4, Issue 2,   Pages 267-276 doi: 10.1016/j.eng.2017.12.013

Abstract:

The objective of a bridge design is to produce a safe bridge that is elegant and satisfies all functionality requirements, at a cost that is acceptable to the owner. A successful bridge design must be natural, simple, original, and harmonious with its surroundings. Aesthetics is not an additional consideration in the design of a bridge, but is rather an integral part of bridge design. Both the structural configuration and the aesthetics of a bridge must be considered together during the conceptual design stage. To achieve such a task, the bridge design engineer must have a good understanding of structural theory and bridge aesthetics.

Keywords： Form     Aesthetics     Bridge     Concept     Design     Environment    

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EFFECTS OF SUBSTITUTION OF MINERAL NITROGEN WITH ORGANIC AMENDMENTS ON NITROGEN LOSS FROM SLOPING CROPLAND OF PURPLE SOIL

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 3,   Pages 396-406 doi: 10.15302/J-FASE-2022456

Abstract:

● Interflow acts as the dominant pathway for N loss loadings.

Keywords： improved fertilization regime     interflow     nitrogen forms     nitrogen leaching     purple soil     sloping cropland    

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Subcellular distribution and chemical form of Pb in hyperaccumulator

Yanqun ZU,Yuan LI,Huan MIN,Fangdong ZHAN,Li QIN,Jixiu WANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 2,   Pages 250-258 doi: 10.1007/s11783-014-0643-3

Abstract: Solution culture was conducted in order to understand accumulation characteristics and chemical formsroot of increased with increasing in Pb concentrations in solution. 2) The contents of Pb chemical formsfacilitate the absorption and accumulation of Pb, which exist in NaCl-, HCl- and HAc- extractable Pb forms

Keywords： Pb     Arenaria orbiculata     chemical forms     subcellular distribution     root exudates     hydroponic culture    

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Study on anti-sliding stability of hydraulic structures on subbed soils (continued)

Zhou Junliang

Strategic Study of CAE 2011, Volume 13, Issue 9,   Pages 22-30

Abstract:

A study on the anti-sliding stability of hydraulic structures on subbed soil has been made. Using the anti-sliding test results of dragged concreting pressure plate in foundation pits, the decreased value of anti-sliding bearing capacity after spring back influenced of subbed soil is determined; envelope of anti-sliding shear stress and friction coefficient are also quantitatively determined. It is suggested to use the maximum compressive stress σmax of eccentric load to predict structure displacement, sliding and creepy slippage of subbed soil, to determine sliding contour creep, and limit the maximum compressive of subbed soil. Two built hydraulic structures are reviewed and calculated by drafted method, and the results are accord with real conditions.

Keywords： test of dragged concreting pressure plate     strength envelop of shear stress     friction coefficient     forms    

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New Challenges, New Opportunities and New Measures for Oil and Gas Cooperation in the Belt and Road

Yu-pu Wang,He Liu

Frontiers of Engineering Management 2016, Volume 3, Issue 4,   Pages 301-313 doi: 10.15302/J-FEM-2016055

Abstract: gas supply security, investment environment, regional win-win situation in oil and gas cooperation, new

Keywords： the Belt and Road     oil & gas cooperation     new challenges     new opportunities     new measures    

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Comparisons in subcellular and biochemical behaviors of cadmium between low-Cd and high-Cd accumulation cultivars of pakchoi (

Meng XUE, Yihui ZHOU, Zhongyi YANG, Biyun LIN, Jiangang YUAN, Shanshan WU

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 2,   Pages 226-238 doi: 10.1007/s11783-013-0582-4

Abstract: Subcellular distributions and chemical forms of cadmium (Cd) in the leaves, stems and roots were investigated

Keywords： subcellular distribution     chemical forms    

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New Year’s Message for 2023

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 1, doi: 10.1007/s11783-023-1613-4

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Mechanical performance analysis and stiffness test of a new type of suspension bridge

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 5,   Pages 1160-1180 doi: 10.1007/s11709-021-0760-6

Abstract: A new type of suspension bridge is proposed based on the gravity stiffness principle.of a conventional suspension bridge is completed to resist different loads with different structural formsA new type of railway suspension bridge with a span of 340 m and a highway suspension bridge with a spanA stiffness test was carried out on the new type of suspension bridge with a small span, and the resultsThe results showed that the new suspension bridge had a better performance than the conventional suspension

Keywords： new type of suspension bridge     stiffness test     mechanical performance     railway bridge     space truss    

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New Year’s Message for 2022

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 1,   Pages 14-14 doi: 10.1007/s11783-022-1538-3

Abstract: FESE will implement several new initiatives in 2022.Third, we will introduce a new article style, “Opinion,” that will broaden our perspectives and focus
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Title Author Date Type Operation

Present situation and classification of piezoelectric pump

Fang YE, Shouyin WANG, Wei CHENG, Qixiao XIA, Jianhui ZHANG,

Journal Article

Unnormalized and normalized forms of gefura measures in directed and undirected networks

Raf GUNS,Ronald ROUSSEAU

Journal Article

Spatial distribution of phosphorus forms in sediments with different distances to the estuary of the

Shaoyong LU, Xiangcan JIN, Fengchang WU, Jing SI, Jianning GUO,

Journal Article

Characterization of phosphorus species and modeling for its organic forms in eutrophic shallow lake sediments

Hongguang CHENG,Xiao PU,Yiting CHEN,Fanghua HAO,Liming DONG

Journal Article

Micro/nanofluidics-enabled energy conversion and its implemented devices

Yang YANG, Jing LIU

Journal Article

Comparison between linear and non-linear forms of pseudo-first-order and pseudo-second-order adsorption

Junxiong LIN , Lan WANG ,

Journal Article

Forms and Aesthetics of Bridges

Man-Chung Tang

Journal Article

EFFECTS OF SUBSTITUTION OF MINERAL NITROGEN WITH ORGANIC AMENDMENTS ON NITROGEN LOSS FROM SLOPING CROPLAND OF PURPLE SOIL

Journal Article

Subcellular distribution and chemical form of Pb in hyperaccumulator

Yanqun ZU,Yuan LI,Huan MIN,Fangdong ZHAN,Li QIN,Jixiu WANG

Journal Article

Study on anti-sliding stability of hydraulic structures on subbed soils (continued)

Zhou Junliang

Journal Article

New Challenges, New Opportunities and New Measures for Oil and Gas Cooperation in the Belt and Road

Yu-pu Wang,He Liu

Journal Article

Comparisons in subcellular and biochemical behaviors of cadmium between low-Cd and high-Cd accumulation cultivars of pakchoi (

Meng XUE, Yihui ZHOU, Zhongyi YANG, Biyun LIN, Jiangang YUAN, Shanshan WU

Journal Article

New Year’s Message for 2023

Journal Article

Mechanical performance analysis and stiffness test of a new type of suspension bridge

Journal Article

New Year’s Message for 2022

Journal Article