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Review: Tip-based vibrational spectroscopy for nanoscale analysis of emerging energy materials

Amun JARZEMBSKI, Cedric SHASKEY, Keunhan PARK

Frontiers in Energy 2018, Volume 12, Issue 1,   Pages 43-71 doi: 10.1007/s11708-018-0524-8

Abstract: The discussed methods utilize the AFM tip as a nanoscopic tool to extract spatially resolved electronicresponse, optical scattering, and atomic force interactions, all of which can be readily probed by an AFM tipTherefore, they use the AFM tip as a thermal detector to directly relate absorbed IR light to the thermalthe light absorption by molecular vibrational resonances using AFM’s superb sensitivity in detecting tip-sample

Keywords： spectroscopy     atomic force microscopy     photo-thermal induced resonance     scanning near-field optical microscopy     tip-enhanced    

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Thermo-elastic extended meshfree method for fracture without crack tip enrichment

A. ASADPOUR

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 4,   Pages 441-447 doi: 10.1007/s11709-015-0319-5

Abstract: presenting an extended meshfree method for thermo- elastic fracture which does not exploit a crack tipTo ensure that crack tip is at the correct position, a Lagrange multiplier field ahead of the crack tip

Keywords： meshfree method     thermo-elasticity    

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Measurement and analysis of tip clearance unsteady flow spectrum in axial-flow fan rotor

LIU Bo, HOU Weimin, MA Changyou, WANG Yangang, ZHOU Qiang

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 448-452 doi: 10.1007/s11708-008-0088-0

Abstract: The tip clearance unsteady flow development from the inlet to the outlet of an axial-flow rotor was revealedby analyzing pressure frequency spectrum acquired from measuring the unsteady pressure field of the tipThe experiment provides test basis for thoroughly understanding the tip clearance unsteady flow and buildinginteraction models of tip clearance flow and main flow.

Keywords： development     endwall     unsteady pressure     pressure measurement     experiment    

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Stress field near circular-arc interface crack tip based on electric saturation concept

Longchao DAI, Xinwei WANG

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 3,   Pages 320-325 doi: 10.1007/s11465-009-0042-9

Abstract: complex potentials in both the matrix and the inclusion, and the stress intensity factor at the crack tip

Keywords： piezoelectric material     arc crack     strip saturation     stress intensity factor    

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Error compensation for tool-tip trace during cutting of laminated paper for rapid prototyping

Yucheng DING, Changhe LI, Dichen LI, Guoxin YU

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 2,   Pages 111-119 doi: 10.1007/s11465-009-0020-2

Abstract: Therefore, the knife tip, which engages into the sheet paper during cutting, tends to follow the pathdriven bearing axis by the error that depends on the path tangential and the eccentricity of the knife tipA tractrix model is applied to describe the kinetic motion of the knife tip and a method is formulatedto compensate for the tracing error of the eccentric knife tip by modifying the original cross-sectionA study has also been performed regarding the effect of the knife tip geometry on the cutting notch of

Keywords： rapid prototyping     laminated object manufacturing     knife-cutting     tracing error    

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Gold modified microelectrode for direct tetracycline detection

Hongtao WANG, Huimin ZHAO, Xie QUAN

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 3,   Pages 313-319 doi: 10.1007/s11783-011-0323-5

Abstract: tetracycline (TC) by the microelectrode, which was fabricated by electrodeposited gold colloids on tungsten tip

Keywords： microelectrode     tungsten tip     gold colloids     tetracycline    

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Nanoparticle-enhanced coolants in machining: mechanism, application, and prospects

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 4, doi: 10.1007/s11465-023-0769-8

Abstract: Nanoparticle-enhanced coolants (NPECs) are increasingly used in minimum quantity lubrication (MQL) machiningFirst, the laws of influence of nano-enhanced phases and base fluids on the processing performance are

Keywords： nanoparticle-enhanced coolant     minimum quantity lubrication     biolubricant     thermophysical properties    

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A review on the application of nanofluids in enhanced oil recovery

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 8,   Pages 1165-1197 doi: 10.1007/s11705-021-2120-4

Abstract: Enhanced oil recovery (EOR) has been widely used to recover residual oil after the primary or secondary

Keywords： nanofluid     EOR mechanism     nanoparticle adsorption     interface property     internal property    

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Generation of enhanced stability of SnO/In(OH)/InP for photocatalytic water splitting by SnO protection

Frontiers in Energy 2021, Volume 15, Issue 3,   Pages 710-720 doi: 10.1007/s11708-021-0764-x

Abstract: paper, it is demonstrated that the stability and activity of the InP-based catalyst are effectively enhanced

Keywords： SnO/In(OH)3/InP photocatalyst     enhanced activity and stability for water splitting     corrosion    

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CO, N, and CO/N mixed gas injection for enhanced shale gas recovery and CO geological storage

Frontiers in Energy 2023, Volume 17, Issue 3,   Pages 428-445 doi: 10.1007/s11708-023-0865-9

Abstract: In this work, using fractured shale cores, isothermal adsorption experiments and core flooding tests were conducted to investigate the performance of injecting different gases to enhance shale gas recovery and CO2 geological storage efficiency under real reservoir conditions. The adsorption process of shale to different gases was in agreement with the extended-Langmuir model, and the adsorption capacity of CO2 was the largest, followed by CH4, and that of N2 was the smallest of the three pure gases. In addition, when the CO2 concentration in the mixed gas exceeded 50%, the adsorption capacity of the mixed gas was greater than that of CH4, and had a strong competitive adsorption effect. For the core flooding tests, pure gas injection showed that the breakthrough time of CO2 was longer than that of N2, and the CH4 recovery factor at the breakthrough time (RCH4) was also higher than that of N2. The RCH4 of CO2 gas injection was approximately 44.09%, while the RCH4 of N2 was only 31.63%. For CO2/N2 mixed gas injection, with the increase of CO2 concentration, the RCH4 increased, and the RCH4 for mixed gas CO2/N2 = 8:2 was close to that of pure CO2, about 40.24%. Moreover, the breakthrough time of N2 in mixed gas was not much different from that when pure N2 was injected, while the breakthrough time of CO2 was prolonged, which indicated that with the increase of N2 concentration in the mixed gas, the breakthrough time of CO2 could be extended. Furthermore, an abnormal surge of N2 concentration in the produced gas was observed after N2 breakthrough. In regards to CO2 storage efficiency (Sstorage-CO2), as the CO2 concentration increased, Sstorage-CO2 also increased. The Sstorage-CO2 of the pure CO2 gas injection was about 35.96%, while for mixed gas CO2/N2 = 8:2, Sstorage-CO2 was about 32.28%.

Keywords： shale gas     gas injection     competitive adsorption     enhanced shale gas recovery     CO2 geological    

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A MYB-INDUCED MECHANISM FOR ENHANCED ASCORBATE IN RED-FLESHED APPLES

Richard V. ESPLEY, Kuilin WANG

Frontiers of Agricultural Science and Engineering   Pages 356-357 doi: 10.15302/J-FASE-2021381

Abstract: These red-fleshed apples have enhanced concentrations of both anthocyanins and ascorbate, both of which
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Gain-enhanced reconfigurable radiation array with mechanically driven system and directive elements

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0716-0

Abstract: However, conventional antennas with constant phase distributions cannot achieve enhanced gains in differentarray (RRA) based on miniaturized elements and a mechanically reconfigurable system to obtain gain-enhancedof freedom to realize the size and phase distribution reconfiguration simultaneously to validate the enhanced

Keywords： mechanism     reconfigurable radiation array (RRA)     compact state     deployed state     enhanced gain    

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Condition monitoring of a wind turbine generator using a standalone wind turbine emulator

Himani,Ratna DAHIYA

Frontiers in Energy 2016, Volume 10, Issue 3,   Pages 286-297 doi: 10.1007/s11708-016-0419-5

Abstract: The intend of this paper is to give a description of the realization of a low-cost wind turbine emulator(WTE) with open source technology from graze required for the condition monitoring to diagnose rotor and stator faults in a wind turbine generator (WTG). The WTE comprises of a 2.5 kW DC motor coupled with a 1 kW squirrel-cage induction machine. This paper provides a detailed overview of the hardware and software used along with the WTE control strategies such as MPPT and pitch control. The emulator reproduces dynamic characteristics both under step variations and arbitrary variation in the wind speed of a typical wind turbine (WT) of a wind energy conversion system (WECS). The usefulness of the setup has been benchmarked with previously verified WT test rigs made at the University of Manchester and Durham University in UK. Considering the fact that the rotor blades and electric subassemblies direct drive WTs are most susceptible to damage in practice, generator winding faults and rotor unbalance have been introduced and investigated using the terminal voltage and generated current. This wind turbine emulator (WTE) can be reconfigured or analyzed for condition monitoring without the need for real WTs.

Keywords： monitoring (CM)     wind turbine emulator (WTE)     wind turbine generator (WTG)     maximum power point tracking (MPPT)     tip    

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Activated carbon induced oxygen vacancies-engineered nickel ferrite with enhanced conductivity for supercapacitor

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 2088-2100 doi: 10.1007/s11705-023-2352-6

Abstract: Activated carbon induced oxygen vacancies-engineered nickel ferrite with enhanced conductivity for supercapacitor

Keywords： nickel ferrite conductivity     carbon oxygen vacancies    

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Laser enhanced gettering of silicon substrates

Daniel CHEN,Matthew EDWARDS,Stuart WENHAM,Malcolm ABBOTT,Brett HALLAM

Frontiers in Energy 2017, Volume 11, Issue 1,   Pages 23-31 doi: 10.1007/s11708-016-0441-7

Abstract: Direct comparisons between laser enhanced gettering (LasEG) and lightly-doped emitter diffusion gettering

Keywords： gettering     multicystaline     silicon     impurities     laser doping    

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Title Author Date Type Operation

Review: Tip-based vibrational spectroscopy for nanoscale analysis of emerging energy materials

Amun JARZEMBSKI, Cedric SHASKEY, Keunhan PARK

Journal Article

Thermo-elastic extended meshfree method for fracture without crack tip enrichment

A. ASADPOUR

Journal Article

Measurement and analysis of tip clearance unsteady flow spectrum in axial-flow fan rotor

LIU Bo, HOU Weimin, MA Changyou, WANG Yangang, ZHOU Qiang

Journal Article

Stress field near circular-arc interface crack tip based on electric saturation concept

Longchao DAI, Xinwei WANG

Journal Article

Error compensation for tool-tip trace during cutting of laminated paper for rapid prototyping

Yucheng DING, Changhe LI, Dichen LI, Guoxin YU

Journal Article

Gold modified microelectrode for direct tetracycline detection

Hongtao WANG, Huimin ZHAO, Xie QUAN

Journal Article

Nanoparticle-enhanced coolants in machining: mechanism, application, and prospects

Journal Article

A review on the application of nanofluids in enhanced oil recovery

Journal Article

Generation of enhanced stability of SnO/In(OH)/InP for photocatalytic water splitting by SnO protection

Journal Article

CO, N, and CO/N mixed gas injection for enhanced shale gas recovery and CO geological storage

Journal Article

A MYB-INDUCED MECHANISM FOR ENHANCED ASCORBATE IN RED-FLESHED APPLES

Richard V. ESPLEY, Kuilin WANG

Journal Article

Gain-enhanced reconfigurable radiation array with mechanically driven system and directive elements

Journal Article

Condition monitoring of a wind turbine generator using a standalone wind turbine emulator

Himani,Ratna DAHIYA

Journal Article

Activated carbon induced oxygen vacancies-engineered nickel ferrite with enhanced conductivity for supercapacitor

Journal Article

Laser enhanced gettering of silicon substrates

Daniel CHEN,Matthew EDWARDS,Stuart WENHAM,Malcolm ABBOTT,Brett HALLAM

Journal Article