The Experts below are selected from a list of 12180 Experts worldwide ranked by ideXlab platform

P. J. Gagnon - One of the best experts on this subject based on the ideXlab platform.

  • Aerobic Acetate Degradation near the Capillary Fringe of Roadside Soil: Field Simulations from Soil Microcosms
    Journal of Environmental Quality, 1995
    Co-Authors: David W. Ostendorf, Samuel J. Pollock, Don J. Degroot, P. J. Gagnon
    Abstract:

    We studied the aerobic degradation of acetate in a roadside soil to assess the reduction of O 2 demand imposed by an alternative highway decicing agent on groundwater. Aseptic uniform and samples adjacent to the capillary fringe of a state highway shoulder in southeastern Massachusetts were placed in sterile serum bottles at 5 o C, forming a series of aerobic soil mirocosms. The samples were dosed with a reagent-grade glacial acetic acid solution, then sampled at various time intervals and analyzed by ion chromatography in a laboratory determination of the microbial degradation kinetics. The aerobic reaction rates were slower than those observed in loamy sand near the ground surface in an earlier study. A steady state transport model for the alternative highway Deicing agent calcium magnesium acetate [CMA; Ca 0.3 , Mg 0.7 (C 2 H 3 O 2 ) 2 ] was derived, including infiltration and degradation. Simulations were run using the observed microcosm kinetics for a range of assumed snowmellt rates. The resulting profiles suggest that microbial activity within the uniform sand near the capillary fringe has the potential to reduce O 2 demand by CMA on groundwater for slow (

  • aerobic acetate degradation near the capillary fringe of roadside soil field simulations from soil microcosms
    Journal of Environmental Quality, 1995
    Co-Authors: David W. Ostendorf, Samuel J. Pollock, Don J. Degroot, P. J. Gagnon
    Abstract:

    We studied the aerobic degradation of acetate in a roadside soil to assess the reduction of O 2 demand imposed by an alternative highway decicing agent on groundwater. Aseptic uniform and samples adjacent to the capillary fringe of a state highway shoulder in southeastern Massachusetts were placed in sterile serum bottles at 5 o C, forming a series of aerobic soil mirocosms. The samples were dosed with a reagent-grade glacial acetic acid solution, then sampled at various time intervals and analyzed by ion chromatography in a laboratory determination of the microbial degradation kinetics. The aerobic reaction rates were slower than those observed in loamy sand near the ground surface in an earlier study. A steady state transport model for the alternative highway Deicing agent calcium magnesium acetate [CMA; Ca 0.3 , Mg 0.7 (C 2 H 3 O 2 ) 2 ] was derived, including infiltration and degradation. Simulations were run using the observed microcosm kinetics for a range of assumed snowmellt rates. The resulting profiles suggest that microbial activity within the uniform sand near the capillary fringe has the potential to reduce O 2 demand by CMA on groundwater for slow (<5×10 -7 m/s) snowmelt rates at 5 o C under aerobic conditions. More rapid infiltration passes more CMA to the underlying aquifer

David W. Ostendorf - One of the best experts on this subject based on the ideXlab platform.

  • Aerobic Acetate Degradation near the Capillary Fringe of Roadside Soil: Field Simulations from Soil Microcosms
    Journal of Environmental Quality, 1995
    Co-Authors: David W. Ostendorf, Samuel J. Pollock, Don J. Degroot, P. J. Gagnon
    Abstract:

    We studied the aerobic degradation of acetate in a roadside soil to assess the reduction of O 2 demand imposed by an alternative highway decicing agent on groundwater. Aseptic uniform and samples adjacent to the capillary fringe of a state highway shoulder in southeastern Massachusetts were placed in sterile serum bottles at 5 o C, forming a series of aerobic soil mirocosms. The samples were dosed with a reagent-grade glacial acetic acid solution, then sampled at various time intervals and analyzed by ion chromatography in a laboratory determination of the microbial degradation kinetics. The aerobic reaction rates were slower than those observed in loamy sand near the ground surface in an earlier study. A steady state transport model for the alternative highway Deicing agent calcium magnesium acetate [CMA; Ca 0.3 , Mg 0.7 (C 2 H 3 O 2 ) 2 ] was derived, including infiltration and degradation. Simulations were run using the observed microcosm kinetics for a range of assumed snowmellt rates. The resulting profiles suggest that microbial activity within the uniform sand near the capillary fringe has the potential to reduce O 2 demand by CMA on groundwater for slow (

  • aerobic acetate degradation near the capillary fringe of roadside soil field simulations from soil microcosms
    Journal of Environmental Quality, 1995
    Co-Authors: David W. Ostendorf, Samuel J. Pollock, Don J. Degroot, P. J. Gagnon
    Abstract:

    We studied the aerobic degradation of acetate in a roadside soil to assess the reduction of O 2 demand imposed by an alternative highway decicing agent on groundwater. Aseptic uniform and samples adjacent to the capillary fringe of a state highway shoulder in southeastern Massachusetts were placed in sterile serum bottles at 5 o C, forming a series of aerobic soil mirocosms. The samples were dosed with a reagent-grade glacial acetic acid solution, then sampled at various time intervals and analyzed by ion chromatography in a laboratory determination of the microbial degradation kinetics. The aerobic reaction rates were slower than those observed in loamy sand near the ground surface in an earlier study. A steady state transport model for the alternative highway Deicing agent calcium magnesium acetate [CMA; Ca 0.3 , Mg 0.7 (C 2 H 3 O 2 ) 2 ] was derived, including infiltration and degradation. Simulations were run using the observed microcosm kinetics for a range of assumed snowmellt rates. The resulting profiles suggest that microbial activity within the uniform sand near the capillary fringe has the potential to reduce O 2 demand by CMA on groundwater for slow (<5×10 -7 m/s) snowmelt rates at 5 o C under aerobic conditions. More rapid infiltration passes more CMA to the underlying aquifer

Yueke Ming - One of the best experts on this subject based on the ideXlab platform.

  • Self-heating 3D printed continuous carbon fiber/epoxy mesh and its application in wind turbine Deicing
    Polymer Testing, 2020
    Co-Authors: Yueke Ming, Yugang Duan, Shaoqiu Zhang, Yansong Zhu, Ben Wang
    Abstract:

    Abstract A novel self-heating 3D printed continuous carbon fiber (CCF)/epoxy (EP) mesh for Deicing was proposed. Because of electron migrating conduction and hopping conduction, the conductivity of CCF reached 131.3 S cm−1 at 25 °C and increased by 1.1%–148.4 S cm−1 at 200 °C, exhibiting a negative temperature coefficient (NTC) effect. Because of the electron conduction of CCF and uneven thermal expansion of the fiber/matrix components, the CCF/EP mesh had NTC and positive temperature coefficient (PTC) effects. After specific hot-cold cycles, the resistance stability of the printed mesh was confirmed. Compared to unprotected glass fiber-reinforced composite laminate, the CCF/EP mesh reinforcement decreased the Deicing time by 85% and had a protective effect on the residual flexural strength and modulus, fiber-resin bonding, and internal voids. Excellent conductivity, resistance stability, and electric self-heating performance indicate that 3D printed CCF/EP mesh is a promising candidate for use in Deicing.

  • self heating 3d printed continuous carbon fiber epoxy mesh and its application in wind turbine Deicing
    Polymer Testing, 2020
    Co-Authors: Yueke Ming, Shaoqiu Zhang, Yansong Zhu, Yugang Dua, E Wang
    Abstract:

    Abstract A novel self-heating 3D printed continuous carbon fiber (CCF)/epoxy (EP) mesh for Deicing was proposed. Because of electron migrating conduction and hopping conduction, the conductivity of CCF reached 131.3 S cm−1 at 25 °C and increased by 1.1%–148.4 S cm−1 at 200 °C, exhibiting a negative temperature coefficient (NTC) effect. Because of the electron conduction of CCF and uneven thermal expansion of the fiber/matrix components, the CCF/EP mesh had NTC and positive temperature coefficient (PTC) effects. After specific hot-cold cycles, the resistance stability of the printed mesh was confirmed. Compared to unprotected glass fiber-reinforced composite laminate, the CCF/EP mesh reinforcement decreased the Deicing time by 85% and had a protective effect on the residual flexural strength and modulus, fiber-resin bonding, and internal voids. Excellent conductivity, resistance stability, and electric self-heating performance indicate that 3D printed CCF/EP mesh is a promising candidate for use in Deicing.

Don J. Degroot - One of the best experts on this subject based on the ideXlab platform.

  • Aerobic Acetate Degradation near the Capillary Fringe of Roadside Soil: Field Simulations from Soil Microcosms
    Journal of Environmental Quality, 1995
    Co-Authors: David W. Ostendorf, Samuel J. Pollock, Don J. Degroot, P. J. Gagnon
    Abstract:

    We studied the aerobic degradation of acetate in a roadside soil to assess the reduction of O 2 demand imposed by an alternative highway decicing agent on groundwater. Aseptic uniform and samples adjacent to the capillary fringe of a state highway shoulder in southeastern Massachusetts were placed in sterile serum bottles at 5 o C, forming a series of aerobic soil mirocosms. The samples were dosed with a reagent-grade glacial acetic acid solution, then sampled at various time intervals and analyzed by ion chromatography in a laboratory determination of the microbial degradation kinetics. The aerobic reaction rates were slower than those observed in loamy sand near the ground surface in an earlier study. A steady state transport model for the alternative highway Deicing agent calcium magnesium acetate [CMA; Ca 0.3 , Mg 0.7 (C 2 H 3 O 2 ) 2 ] was derived, including infiltration and degradation. Simulations were run using the observed microcosm kinetics for a range of assumed snowmellt rates. The resulting profiles suggest that microbial activity within the uniform sand near the capillary fringe has the potential to reduce O 2 demand by CMA on groundwater for slow (

  • aerobic acetate degradation near the capillary fringe of roadside soil field simulations from soil microcosms
    Journal of Environmental Quality, 1995
    Co-Authors: David W. Ostendorf, Samuel J. Pollock, Don J. Degroot, P. J. Gagnon
    Abstract:

    We studied the aerobic degradation of acetate in a roadside soil to assess the reduction of O 2 demand imposed by an alternative highway decicing agent on groundwater. Aseptic uniform and samples adjacent to the capillary fringe of a state highway shoulder in southeastern Massachusetts were placed in sterile serum bottles at 5 o C, forming a series of aerobic soil mirocosms. The samples were dosed with a reagent-grade glacial acetic acid solution, then sampled at various time intervals and analyzed by ion chromatography in a laboratory determination of the microbial degradation kinetics. The aerobic reaction rates were slower than those observed in loamy sand near the ground surface in an earlier study. A steady state transport model for the alternative highway Deicing agent calcium magnesium acetate [CMA; Ca 0.3 , Mg 0.7 (C 2 H 3 O 2 ) 2 ] was derived, including infiltration and degradation. Simulations were run using the observed microcosm kinetics for a range of assumed snowmellt rates. The resulting profiles suggest that microbial activity within the uniform sand near the capillary fringe has the potential to reduce O 2 demand by CMA on groundwater for slow (<5×10 -7 m/s) snowmelt rates at 5 o C under aerobic conditions. More rapid infiltration passes more CMA to the underlying aquifer

Samuel J. Pollock - One of the best experts on this subject based on the ideXlab platform.

  • Aerobic Acetate Degradation near the Capillary Fringe of Roadside Soil: Field Simulations from Soil Microcosms
    Journal of Environmental Quality, 1995
    Co-Authors: David W. Ostendorf, Samuel J. Pollock, Don J. Degroot, P. J. Gagnon
    Abstract:

    We studied the aerobic degradation of acetate in a roadside soil to assess the reduction of O 2 demand imposed by an alternative highway decicing agent on groundwater. Aseptic uniform and samples adjacent to the capillary fringe of a state highway shoulder in southeastern Massachusetts were placed in sterile serum bottles at 5 o C, forming a series of aerobic soil mirocosms. The samples were dosed with a reagent-grade glacial acetic acid solution, then sampled at various time intervals and analyzed by ion chromatography in a laboratory determination of the microbial degradation kinetics. The aerobic reaction rates were slower than those observed in loamy sand near the ground surface in an earlier study. A steady state transport model for the alternative highway Deicing agent calcium magnesium acetate [CMA; Ca 0.3 , Mg 0.7 (C 2 H 3 O 2 ) 2 ] was derived, including infiltration and degradation. Simulations were run using the observed microcosm kinetics for a range of assumed snowmellt rates. The resulting profiles suggest that microbial activity within the uniform sand near the capillary fringe has the potential to reduce O 2 demand by CMA on groundwater for slow (

  • aerobic acetate degradation near the capillary fringe of roadside soil field simulations from soil microcosms
    Journal of Environmental Quality, 1995
    Co-Authors: David W. Ostendorf, Samuel J. Pollock, Don J. Degroot, P. J. Gagnon
    Abstract:

    We studied the aerobic degradation of acetate in a roadside soil to assess the reduction of O 2 demand imposed by an alternative highway decicing agent on groundwater. Aseptic uniform and samples adjacent to the capillary fringe of a state highway shoulder in southeastern Massachusetts were placed in sterile serum bottles at 5 o C, forming a series of aerobic soil mirocosms. The samples were dosed with a reagent-grade glacial acetic acid solution, then sampled at various time intervals and analyzed by ion chromatography in a laboratory determination of the microbial degradation kinetics. The aerobic reaction rates were slower than those observed in loamy sand near the ground surface in an earlier study. A steady state transport model for the alternative highway Deicing agent calcium magnesium acetate [CMA; Ca 0.3 , Mg 0.7 (C 2 H 3 O 2 ) 2 ] was derived, including infiltration and degradation. Simulations were run using the observed microcosm kinetics for a range of assumed snowmellt rates. The resulting profiles suggest that microbial activity within the uniform sand near the capillary fringe has the potential to reduce O 2 demand by CMA on groundwater for slow (<5×10 -7 m/s) snowmelt rates at 5 o C under aerobic conditions. More rapid infiltration passes more CMA to the underlying aquifer