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Flexible micro flow sensor for micro aerial vehicles

Rong ZHU, Ruiyi QUE, Peng LIU

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 4,   Pages 539-545 doi: 10.1007/s11465-017-0427-0

Abstract:

This article summarizes our studies on micro flow sensors fabricated on a flexible polyimide circuitThe micro flow sensor has merits of flexibility, structural simplicity, easy integrability with circuits, and good sensing performance.The sensor, which adheres to an object surface, can detect the surface flow around the object.the surface flow variation around the aircraft wing and deduce the aerodynamic parameters of the MAVs

Keywords： micro flow sensor     flexible sensor     surface flow sensing     aerodynamic parameter     micro aerial vehicle (MAV    

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An Ultracompact Spoof Surface Plasmon Sensing System for Adaptive and Accurate Detection of Gas Using

Xuanru Zhang,Jia Wen Zhu,Tie Jun Cui,

Engineering doi: 10.1016/j.eng.2023.05.013

Abstract: Resonantly enhanced dielectric sensing has superior sensitivity and accuracy because the signal is measuredWe proposed an ultracompact integrated sensing system that merges a spoof surface plasmon resonance sensorA microwave spoof surface plasmon resonator was designed to enhance sensitivity and resonance intensityThe integrated sensing system was constructed on a printed circuit board with dimensions of 1.8 cm ×scanning mode and resonance tracking mode and achieving a signal-to-noise ratio of 69 dB in acetone vapor sensing

Keywords： Spoof surface plasmons     Internet of Things     Integrated sensing     Resonance tracking     Microwave sensing    

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Experimental study on combined buoyant-thermocapillary flow along with rising liquid film on the surface

Manuel J. GOMES, Ning MEI

Frontiers in Energy 2020, Volume 14, Issue 1,   Pages 114-126 doi: 10.1007/s11708-017-0483-5

Abstract: The combined flow occurs along with the rising liquid film flow on the surface of a horizontal metallicThe level of the liquid free surface relative to the lower edge of the tube is measured as angle .with the rising liquid film flow.free surface and identified as the thermo-capillary (Marangoni) flow.The higher levels of immersion cause a high temperature gradient in the liquid free surface region and

Keywords： rising liquid film     combined flow     thermo-capillary flow     buoyant flow     metallic mesh tube     horizontal tube    

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Simulation of cross-flow-induced vibration of tube bundle by surface vorticity method

WANG Fenghao, JIANG Gedong, Lin John Zhang

Frontiers in Energy 2008, Volume 2, Issue 3,   Pages 243-248 doi: 10.1007/s11708-008-0049-7

Abstract: A fluid-structure interaction model based on Surface Vorticity Method (SVM) was used to study flow-inducedThe flow-induced vibrations of four tubes in a rotated square and a staggered tube bundle in three-rowThe results also showed that when more flexible tubes are used, the flow pattern changed drasticallyand the fluid-structure interaction imposed a dominant impact on the flow.

Keywords： dominant     sub-critical Reynolds     staggered     Vorticity     three-row    

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Aerodynamic design by jointly applying S2 flow surface calculation and modern optimization methods on

ZHAO Honglei, WANG Songtao, HAN Wanjin, FENG Guotai

Frontiers in Energy 2008, Volume 2, Issue 1,   Pages 93-98 doi: 10.1007/s11708-008-0007-4

Abstract: A three-stage axial turbine was redesigned by jointly applying S2 flow surface direct problem calculationA three-dimensional viscosity Navier–Stokes equation solver was applied for flow computation.
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(Super)paramagnetic nanoparticles as platform materials for environmental applications: From synthesis to demonstration

Wenlu Li, John D. Fortner

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 5, doi: 10.1007/s11783-020-1256-7

Abstract: . • Monolayer and bilayer surface coating structures are described. • Mono/bilayer coated nanoparticlesextensive research attention for a broad range of applications based on their tunable size and shape, surfaceThis review summaries our recent work on the synthesis, surface modification, and environmental applicationThese materials can be further rendered water stable via functionalization with surface mono/bi-layerFinally, we have demonstrated platform potential of these materials for heavy metal ions sensing, sorption

Keywords： Superparamagnetic nanoparticles     Surface functionalization     Environmental sensing     Heavy metal ion sorption    

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Field Observations of Near-Surface Wind Flow Across Expressway Embankment on the Qinghai–Tibet Plateau

Yanhu Mu,Wei Ma,Zhaohui Joey Yang,Xiaolin Li,Kun Zhang,Yuncheng Mao,

Engineering 2022, Volume 14, Issue 7,   Pages 169-180 doi: 10.1016/j.eng.2021.10.020

Abstract: As convection is a crucial working mechanism of these ACSs, it is imperative to understand the near-surfacewind flow (NSWF) across a constructed infrastructure, such as an embankment.the embankment on both the windward and leeward sides and at four different heights above the ground surface

Keywords： Near-surface wind flow     Field observation     Air-cooling structures     Linear transportation infrastructure    

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Novel sensing techniques for full-scale testing of civil structures

Kaoshan DAI, Zhenhua HUANG

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 3,   Pages 240-256 doi: 10.1007/s11709-012-0172-8

Abstract: To help structural researchers and engineers get familiar with sensing technologies and select the mosteffective sensors, this study reviewed and categorized new sensing techniques for full-scale structuralThe detailed descriptions of wireless sensors and remote sensing techniques and their on-site full-scale

Keywords： sensing technique     full-scale testing     wireless sensor     remote sensing     LiDAR     laser vibrometer    

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Effects of process parameters on surface roughness in abrasive waterjet cutting of aluminium

M. CHITHIRAI PON SELVAN, N. MOHANA SUNDARA RAJU, H. K. SACHIDANANDA

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 4,   Pages 439-444 doi: 10.1007/s11465-012-0337-0

Abstract: Surface roughness of machined parts is one of the major machining characteristics that play an importantThis paper shows the influence of process parameters on surface roughness (Ra) which is anTaguchi’s design of experiments was carried out in order to collect surface roughness values.Experiments were conducted in varying water pressure, nozzle traverse speed, abrasive mass flow rateThe effects of these parameters on surface roughness have been studied based on the experimental results

Keywords： abrasive waterjet     aluminium     garnet     water pressure     mass flow rate     traverse speed     standoff distance    

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Super-Resolution Displacement Spectroscopic Sensing over a Surface “Rainbow” Article

Lyu Zhou, Nan Zhang, Chang Chieh Hsu, Matthew Singer, Xie Zeng, Yizheng Li, Haomin Song, Josep Jornet, Yun Wu, Qiaoqiang Gan

Engineering 2022, Volume 17, Issue 10,   Pages 75-81 doi: 10.1016/j.eng.2022.03.018

Abstract: manipulation of light waves with high precision can enable new and exciting applications in spectroscopy, sensingIn particular, for imaging-based spectroscopic sensing mechanisms, the key challenge is to determineaccurately (i.e., the spatial displacement introduced by wavelength shift or biological or chemical surfaceexosomal epidermal growth factor receptor (EGFR) expression values, thereby demonstrating a new on-chip sensingsystem for personalized accurate bio/chemical sensing applications.

Keywords： Rainbow trapping     Metasurface     Surface plasmon polaritons     Super-resolution displacement     On-chip biosensing    

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REDUCTION OF NON-POINT SOURCE POLLUTION IN THE YONG’AN RIVER BY CONSTRUCTED WETLAND BASED ON 9 YEARS OF MONITORING

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 4,   Pages 627-638 doi: 10.15302/J-FASE-2023516

Abstract:

The agricultural and livestock activities surrounding the rivers flowing into the lakes have caused non-point source pollution, leading to excessive amounts of nutrient salts in downstream rivers. Introducing river water into constructed wetlands along river course has proven to be an effective solution for decreasing nitrogen (N) and phosphorus (P) loads. This paper reports 9 years of monitoring the Yong’an River and its surrounding constructed wetlands in the upper reaches of Erhai Lake, located in Yunnan Province, China. This study analyzed the main types of pollutants in the river, and evaluated the removal efficiency of pollutants by the constructed wetlands. The findings indicate that total nitrogen (TN) and nitrate nitrogen (NO3–-N) are the primary pollutants in the Yong’an River, which exhibit variation throughout the year corresponding to the alternating wet and dry seasons. Although constructed wetlands are effective in removing NO3–-N and P, their efficacy in removing ammonium nitrogen (NH4+-N) and organic pollutants is limited. This limitation can be attributed to the lack of timely disposal of aquatic plant residues. This research contributes to the understanding of the potential issues that may arise during the extended use of constructed wetlands and provides solutions to address them.

Keywords： inflowing rivers     surface-flow constructed wetland     nutrients     long-term monitoring    

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Several basic problems in plastic theory of geomaterials

Yuanxue LIU, Jiawu ZHOU, Zhongyou LI, Chen CHEN, Yingren ZHENG

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 1,   Pages 81-84 doi: 10.1007/s11709-009-0016-3

Abstract: Based on the strict theoretical analysis, the following have been proven: the single yield surface modelon the classical theory of plasticity is unsuitable for geomaterials whether the rule of associated flowis applied or not; the yield surface of geomaterials is not unique, and its number is the same as thefreedoms of plastic strain increment; the yield surface is not convex; and the rule of associated flow

Keywords： constitutive relation     geomaterials     classial plastic theory     Drucker Postulate     yield surface     flow rule    

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Study on theory and application of CE-1 microwave sounding lunar surface

iang Jingshan,Wang Zhenzhan,Li Yun

Strategic Study of CAE 2008, Volume 10, Issue 6,   Pages 16-22

Abstract: named Chang'E Lunar microwave sounder (CELMS) was used to detect regolith information of the lunar surfacethe first time that humankind directly applies sensed brightness temperature to investigate the lunar surfaceTherefore, it is necessary to set up theoretical models to describe lunar surface microwave transferThese models will finally used for retrieving lunar surface information on regolith depths.The further studies on lunar surface information reversion have been conducting by applying CELMS data

Keywords： CE-1 lunar microwave sounder (CELMS)     remote sensing     lunar regolith     microwave transfer model    

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Quorum sensing regulation methods and their effects on biofilm in biological waste treatment systems:

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 7, doi: 10.1007/s11783-021-1495-2

Abstract:

• Quorum sensing enhancement and inhibition methods are summarized.

Keywords： Quorum sensing     Biological waste treatment     Biofilm formation    

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Plasma-enabled sensing of urea and related amides on polyaniline

Harinarayanan Puliyalil,Petr Slobodian,Michal Sedlacik,Ruhan Benlikaya,Pavel Riha,Kostya (Ken) Ostrikov,Uroš Cvelbar

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 2,   Pages 265-272 doi: 10.1007/s11705-016-1570-6

Abstract: The gas sensing mechanism of PANI is operating on the basis of reversible protonation or deprotonationHerein we manage to solve this problem and investigate the sensing mechanism of atmospheric plasma treatedimprovement of the sensitivity and selectivity towards other toxic and carcinogenic amide analytes for gas sensing

Keywords： gas sensing     urea     PANI     amides     plasma    

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Title Author Date Type Operation

Flexible micro flow sensor for micro aerial vehicles

Rong ZHU, Ruiyi QUE, Peng LIU

Journal Article

An Ultracompact Spoof Surface Plasmon Sensing System for Adaptive and Accurate Detection of Gas Using

Xuanru Zhang,Jia Wen Zhu,Tie Jun Cui,

Journal Article

Experimental study on combined buoyant-thermocapillary flow along with rising liquid film on the surface

Manuel J. GOMES, Ning MEI

Journal Article

Simulation of cross-flow-induced vibration of tube bundle by surface vorticity method

WANG Fenghao, JIANG Gedong, Lin John Zhang

Journal Article

Aerodynamic design by jointly applying S2 flow surface calculation and modern optimization methods on

ZHAO Honglei, WANG Songtao, HAN Wanjin, FENG Guotai

Journal Article

(Super)paramagnetic nanoparticles as platform materials for environmental applications: From synthesis to demonstration

Wenlu Li, John D. Fortner

Journal Article

Field Observations of Near-Surface Wind Flow Across Expressway Embankment on the Qinghai–Tibet Plateau

Yanhu Mu,Wei Ma,Zhaohui Joey Yang,Xiaolin Li,Kun Zhang,Yuncheng Mao,

Journal Article

Novel sensing techniques for full-scale testing of civil structures

Kaoshan DAI, Zhenhua HUANG

Journal Article

Effects of process parameters on surface roughness in abrasive waterjet cutting of aluminium

M. CHITHIRAI PON SELVAN, N. MOHANA SUNDARA RAJU, H. K. SACHIDANANDA

Journal Article

Super-Resolution Displacement Spectroscopic Sensing over a Surface “Rainbow”

Lyu Zhou, Nan Zhang, Chang Chieh Hsu, Matthew Singer, Xie Zeng, Yizheng Li, Haomin Song, Josep Jornet, Yun Wu, Qiaoqiang Gan

Journal Article

REDUCTION OF NON-POINT SOURCE POLLUTION IN THE YONG’AN RIVER BY CONSTRUCTED WETLAND BASED ON 9 YEARS OF MONITORING

Journal Article

Several basic problems in plastic theory of geomaterials

Yuanxue LIU, Jiawu ZHOU, Zhongyou LI, Chen CHEN, Yingren ZHENG

Journal Article

Study on theory and application of CE-1 microwave sounding lunar surface

iang Jingshan,Wang Zhenzhan,Li Yun

Journal Article

Quorum sensing regulation methods and their effects on biofilm in biological waste treatment systems:

Journal Article

Plasma-enabled sensing of urea and related amides on polyaniline

Harinarayanan Puliyalil,Petr Slobodian,Michal Sedlacik,Ruhan Benlikaya,Pavel Riha,Kostya (Ken) Ostrikov,Uroš Cvelbar

Journal Article