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Development of an experimental platform for research in energy and electrical machine control

Ali HMIDET, Rachid DHIFAOUI, Driss SAIDANI, Othman HASNAOUI,

Frontiers in Energy 2010, Volume 4, Issue 3,   Pages 366-375 doi: 10.1007/s11708-010-0106-x

Abstract: bench dedicated for electrical machines and energy control, as realized by the research team of the PowerThis paper focuses on mounting low-cost sensors and developing reliable scientific results.The relevant obtained results in photovoltaic (PV) and wind energy fields, power measurement and controlMaps and interesting details of some realized sensors are also presented.

Keywords： test bench     induction motor     solar energy     wind energy     AC/DC/AC converter     sensors and power measurements    

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Spectral emittance measurements of micro/nanostructures in energy conversion: a review

Shiquan SHAN, Chuyang CHEN, Peter G. LOUTZENHISER, Devesh RANJAN, Zhijun ZHOU, Zhuomin M. ZHANG

Frontiers in Energy 2020, Volume 14, Issue 3,   Pages 482-509 doi: 10.1007/s11708-020-0693-0

Abstract: Micro/nanostructures play a key role in tuning the radiative properties of materials and have been applied to high-temperature energy conversion systems for improved performance. Among the various radiative properties, spectral emittance is of integral importance for the design and analysis of materials that function as radiative absorbers or emitters. This paper presents an overview of the spectral emittance measurement techniques using both the direct and indirect methods. Besides, several micro/nanostructures are also introduced, and a special emphasis is placed on the emissometers developed for characterizing engineered micro/nanostructures in high-temperature applications (e.g., solar energy conversion and thermophotovoltaic devices). In addition, both experimental facilities and measured results for different materials are summarized. Furthermore, future prospects in developing instrumentation and micro/nanostructured surfaces for practical applications are also outlined. This paper provides a comprehensive source of information for the application of micro/nanostructures in high-temperature energy conversion engineering.

Keywords： concentrating solar power (CSP)     emittance measurements     high temperature     micro/nanostructure     selective    

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Answer for questions of repeated measurements of variance analysis and distribution test of data — Authors

Frontiers of Medicine 2022, Volume 16, Issue 4,   Pages 661-664 doi: 10.1007/s11684-021-0907-9

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Special issue on “Molecular Sensors and Molecular Logic Gates”

Luling Wu , Tony D. James

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 1,   Pages 1-3 doi: 10.1007/s11705-021-2134-y

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High resolution satellite imaging sensors for precision agriculture

Chenghai YANG

Frontiers of Agricultural Science and Engineering 2018, Volume 5, Issue 4,   Pages 393-405 doi: 10.15302/J-FASE-2018226

Abstract: Various types of remote sensors carried on ground-based platforms, manned aircraft, satellites, and moreRecent developments in high resolution satellite sensors have significantly narrowed the gap in spatialThis article will provide an overview of commercially available high resolution satellite sensors thatSome challenges and future directions on the use of high resolution satellite sensors and other typesof remote sensors for precision agriculture are discussed.

Keywords： high resolution satellite sensor     multispectral imagery     precision agriculture     spatial resolution     temporal resolution    

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Application and evaluation of optical distance measurements in geometrical quality testing of microgears

Albert ALBERS, Duotai PAN, Leif MARXEN, Claudia BECKE,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 3,   Pages 261-269 doi: 10.1007/s11465-010-0100-3

Abstract: Microgears are increasingly important in industry. Compared to normal gears, the quality assurance of microgears needs more accurately measured data and simple but feasible measurement methods because of their dimension particula

Keywords： microgear     optical distance measurement     profile deviation     CWL sensor     micromechanical technology (MMT)    

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NITROGEN CYCLING AND ENVIRONMENTAL IMPACTS IN THE SUBTROPICAL HILLY REGION OF CHINA: EVIDENCE FROM MEASUREMENTS

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 3,   Pages 407-424 doi: 10.15302/J-FASE-2022448

Abstract:

● Soil nitrogen fluxes and influencing factors were reviewed in the subtropical hilly regions.

Keywords： nitrogen cycling     soil nitrogen     nitrogen deposition     greenhouse gases emission     non-point source pollution     nitrogen use efficiency    

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Operando modeling and measurements: Powerful tools for revealing the mechanism of alkali carbonate-based

Frontiers in Energy 2023, Volume 17, Issue 3,   Pages 380-389 doi: 10.1007/s11708-023-0872-x

Abstract: This paper proposed that operando modeling and measurements are powerful tools to understand the mechanism

Keywords： CO2 capture     carbonation     theoretical modeling     operando techniques     reaction visualization    

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δN-stable isotope analysis of NH: An overview on analytical measurements, source sampling and its source

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1414-6

Abstract:

• Challenges in sampling of NH3 sources for d15N analysis are highlighted.

Keywords： Aerosol ammonium     Atmospheric gaseous ammonia     Isotope fingerprinting     Isotope-based source apportionment     Ammonia gas-to-particle conversion    

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Modeling and analysis of controllable output property of cantilever-beam inertial sensors based on magnetic

Guixiong LIU, Peiqiang ZHANG, Chen XU

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 2,   Pages 129-133 doi: 10.1007/s11465-009-0035-8

Abstract: cantilever-beam and the novel controllable mag-viscosity of magnetic fluid, the output of cantilever-beam sensorsis under control so that the controllable output of the sensors can be realized.The mathematical model of the sensors is established and analyzed.The result shows that it is valid to realize the controllable output of the sensors by controlling the

Keywords： sensors     magnetic fluid     property of mag-viscosity     controllable output    

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Field measurements on microclimate in residential community in Guangzhou, China

Zhuolun CHEN, Lihua ZHAO, Qinglin MENG, Changshan WANG, Yongchao ZHAI, Fei WANG,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 4,   Pages 462-468 doi: 10.1007/s11709-009-0066-6

Abstract: Taking a certain housing in Guangzhou as an example, we conduct the field measurement of the microclimate at fixed points for air temperature, relative humidity, black globe temperature and wind speed, etc. We investigate the effects of manmade lake, shade of trees and ground surface character on outdoor thermal environment, and make a quantitative analysis on the weighting position of the landscape design factors in design behavior. The study intends to explore a method to improve the thermal environment of residential quarters by changing the corresponding factors.

Keywords： microclimate     outdoor thermal environment     air temperature     black globe temperature     wind speed    

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Theoretical Framework and Key Technologies of Transparent Power Grid

Li Licheng, Cai Zexiang, Tang Wenhu, Zhang Yongjun, Zhang Junbo, Wu Zhigang, Yang Lin, Han Yongxia, Guan Lin

Strategic Study of CAE 2022, Volume 24, Issue 4,   Pages 32-43 doi: 10.15302/J-SSCAE-2022.04.025

Abstract: by small smart and wireless sensors to build a large-scale sensing network.The transparent power grid relies on small and micro intelligent sensors for extensive collection andWith the promotion and application of small and micro sensors, the physical state of power equipmentThe multi-parametric small and micro sensors in the transparent power grid perception layer provide thebasic conditions for power grid data collection and further broaden the application scenarios of sensors

Keywords： transparent power grid     energy ecosystem     new-type power system     energy transformation     micro sensors    

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Soft curvature sensors for measuring the rotational angles of mechanical fingers

Haixiao LIU, Li LI, Zhikang OUYANG, Wei SUN

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 4,   Pages 610-621 doi: 10.1007/s11465-020-0596-0

Abstract: The design, fabrication, and testing of soft sensors that measure elastomer curvature and mechanicalThe base of the soft sensors is polydimethylsiloxane (PDMS), which is a translucent elastomer.The main body of the soft sensors consists of three layers of silicone rubber plate, and the sensingFirst, the working principle of soft sensors is investigated, and their structure is designed.Lastly, the soft sensors are applied to the measurement of mechanical finger bending.

Keywords： soft sensor     Ga-In-Sn alloy     strain sensing     curvature sensing     mechanical finger bending    

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Diffusive gradients in thin films using molecularly imprinted polymer binding gels for in situ measurements

Ying Cui, Feng Tan, Yan Wang, Suyu Ren, Jingwen Chen

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 6, doi: 10.1007/s11783-020-1290-5

Abstract: Abstract • Selective molecularly imprinted polymer (MIP) binding gel was prepared. • MIP-DGT showed excellent uptake performance for antibiotics. • In situ measurement of antibiotics in wastewaters via MIP-DGT was developed. • The MIP-DGT method was robust, reliable, and highly sensitive. Urban wastewater is one of main sources for the introduction of antibiotics into the environment. Monitoring the concentrations of antibiotics in wastewater is necessary for estimating the amount of antibiotics discharged into the environment through urban wastewater treatment systems. In this study, we report a novel diffusive gradient in thin films (DGT) method based on molecularly imprinted polymers (MIPs) for in situ measurement of two typical antibiotics, fluoroquinolones (FQs) and sulfonamides (SAs) in urban wastewater. MIPs show specific adsorption toward their templates and their structural analogs, resulting in the selective uptake of the two target antibiotics during MIP-DGT deployment. The uptake performance of the MIP-DGTs was evaluated in the laboratory and was relatively independent of solution pH (4.0–9.0), ionic strength (1–750 mmol/L), and dissolved organic matter (DOM, 0–20 mg/L). MIP-DGT samplers were tested in the effluent of an urban wastewater treatment plant for field trials, where three SA (sulfamethoxazole, sulfapyridine, and trimethoprim) and one FQ (ofloxacin) antibiotics were detected, with concentrations ranging from 25.50 to 117.58 ng/L, which are consistent with the results measured by grab sampling. The total removal efficiency of the antibiotics was 80.1% by the treatment plant. This study demonstrates that MIP-DGT is an effective tool for in situ monitoring of trace antibiotics in complex urban wastewaters.

Keywords： Diffusive gradients in thin films     Molecularly imprinted polymers     Selective uptake     Antibiotics     Passive sampling    

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MEMS-based thermoelectric infrared sensors: A review

Dehui XU, Yuelin WANG, Bin XIONG, Tie LI

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 4,   Pages 557-566 doi: 10.1007/s11465-017-0441-2

Abstract:

In the past decade, micro-electromechanical systems (MEMS)-based thermoelectric infrared (IR) sensorsThis paper presents a review of MEMS-based thermoelectric IR sensors.sensing materials, thermal isolation microstructures, absorber designs, and packaging methods for these sensors

Keywords： thermoelectric infrared sensor     CMOS-MEMS     thermopile     micromachining     wafer-level package    

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Title Author Date Type Operation

Development of an experimental platform for research in energy and electrical machine control

Ali HMIDET, Rachid DHIFAOUI, Driss SAIDANI, Othman HASNAOUI,

Journal Article

Spectral emittance measurements of micro/nanostructures in energy conversion: a review

Shiquan SHAN, Chuyang CHEN, Peter G. LOUTZENHISER, Devesh RANJAN, Zhijun ZHOU, Zhuomin M. ZHANG

Journal Article

Answer for questions of repeated measurements of variance analysis and distribution test of data — Authors

Journal Article

Special issue on “Molecular Sensors and Molecular Logic Gates”

Luling Wu , Tony D. James

Journal Article

High resolution satellite imaging sensors for precision agriculture

Chenghai YANG

Journal Article

Application and evaluation of optical distance measurements in geometrical quality testing of microgears

Albert ALBERS, Duotai PAN, Leif MARXEN, Claudia BECKE,

Journal Article

NITROGEN CYCLING AND ENVIRONMENTAL IMPACTS IN THE SUBTROPICAL HILLY REGION OF CHINA: EVIDENCE FROM MEASUREMENTS

Journal Article

Operando modeling and measurements: Powerful tools for revealing the mechanism of alkali carbonate-based

Journal Article

δN-stable isotope analysis of NH: An overview on analytical measurements, source sampling and its source

Journal Article

Modeling and analysis of controllable output property of cantilever-beam inertial sensors based on magnetic

Guixiong LIU, Peiqiang ZHANG, Chen XU

Journal Article

Field measurements on microclimate in residential community in Guangzhou, China

Zhuolun CHEN, Lihua ZHAO, Qinglin MENG, Changshan WANG, Yongchao ZHAI, Fei WANG,

Journal Article

Theoretical Framework and Key Technologies of Transparent Power Grid

Li Licheng, Cai Zexiang, Tang Wenhu, Zhang Yongjun, Zhang Junbo, Wu Zhigang, Yang Lin, Han Yongxia, Guan Lin

Journal Article

Soft curvature sensors for measuring the rotational angles of mechanical fingers

Haixiao LIU, Li LI, Zhikang OUYANG, Wei SUN

Journal Article

Diffusive gradients in thin films using molecularly imprinted polymer binding gels for in situ measurements

Ying Cui, Feng Tan, Yan Wang, Suyu Ren, Jingwen Chen

Journal Article

MEMS-based thermoelectric infrared sensors: A review

Dehui XU, Yuelin WANG, Bin XIONG, Tie LI

Journal Article