Recalibration of the Mars Science Laboratory ChemCam instrument with an expanded geochemical database
The ChemCam Laser-Induced Breakdown Spectroscopy (LIBS) instrument onboard the Mars Science Laboratory (MSL) rover Curiosity has obtained >300,000 spectra of rock and soil analysis targets since landing at Gale Crater in 2012, and the spectra represent perhaps the largest publicly-available LIBS...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Clegg, Samuel M. [verfasserIn] |
|---|
| Format: |
E-Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
2017transfer abstract |
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| Umfang: |
22 |
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| Übergeordnetes Werk: |
Enthalten in: Dual stimuli-responsive polypeptide-calcium phosphate hybrid nanoparticles for co-delivery of multiple drugs in cancer therapy - Li, Qiang ELSEVIER, 2021, Amsterdam [u.a.] |
|---|---|
| Übergeordnetes Werk: |
volume:129 ; year:2017 ; day:1 ; month:03 ; pages:64-85 ; extent:22 |
| Links: |
|---|
| DOI / URN: |
10.1016/j.sab.2016.12.003 |
|---|
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ELV025335286 |
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| 520 | |a The ChemCam Laser-Induced Breakdown Spectroscopy (LIBS) instrument onboard the Mars Science Laboratory (MSL) rover Curiosity has obtained >300,000 spectra of rock and soil analysis targets since landing at Gale Crater in 2012, and the spectra represent perhaps the largest publicly-available LIBS datasets. The compositions of the major elements, reported as oxides (SiO2, TiO2, Al2O3, FeOT, MgO, CaO, Na2O, K2O), have been re-calibrated using a laboratory LIBS instrument, Mars-like atmospheric conditions, and a much larger set of standards (408) that span a wider compositional range than previously employed. The new calibration uses a combination of partial least squares (PLS1) and Independent Component Analysis (ICA) algorithms, together with a calibration transfer matrix to minimize differences between the conditions under which the standards were analyzed in the laboratory and the conditions on Mars. While the previous model provided good results in the compositional range near the average Mars surface composition, the new model fits the extreme compositions far better. Examples are given for plagioclase feldspars, where silicon was significantly over-estimated by the previous model, and for calcium-sulfate veins, where silicon compositions near zero were inaccurate. The uncertainties of major element abundances are described as a function of the abundances, and are overall significantly lower than the previous model, enabling important new geochemical interpretations of the data. | ||
| 520 | |a The ChemCam Laser-Induced Breakdown Spectroscopy (LIBS) instrument onboard the Mars Science Laboratory (MSL) rover Curiosity has obtained >300,000 spectra of rock and soil analysis targets since landing at Gale Crater in 2012, and the spectra represent perhaps the largest publicly-available LIBS datasets. The compositions of the major elements, reported as oxides (SiO2, TiO2, Al2O3, FeOT, MgO, CaO, Na2O, K2O), have been re-calibrated using a laboratory LIBS instrument, Mars-like atmospheric conditions, and a much larger set of standards (408) that span a wider compositional range than previously employed. The new calibration uses a combination of partial least squares (PLS1) and Independent Component Analysis (ICA) algorithms, together with a calibration transfer matrix to minimize differences between the conditions under which the standards were analyzed in the laboratory and the conditions on Mars. While the previous model provided good results in the compositional range near the average Mars surface composition, the new model fits the extreme compositions far better. Examples are given for plagioclase feldspars, where silicon was significantly over-estimated by the previous model, and for calcium-sulfate veins, where silicon compositions near zero were inaccurate. The uncertainties of major element abundances are described as a function of the abundances, and are overall significantly lower than the previous model, enabling important new geochemical interpretations of the data. | ||
| 700 | 1 | |a Wiens, Roger C. |4 oth | |
| 700 | 1 | |a Anderson, Ryan |4 oth | |
| 700 | 1 | |a Forni, Olivier |4 oth | |
| 700 | 1 | |a Frydenvang, Jens |4 oth | |
| 700 | 1 | |a Lasue, Jeremie |4 oth | |
| 700 | 1 | |a Cousin, Agnes |4 oth | |
| 700 | 1 | |a Payré, Valérie |4 oth | |
| 700 | 1 | |a Boucher, Tommy |4 oth | |
| 700 | 1 | |a Dyar, M. Darby |4 oth | |
| 700 | 1 | |a McLennan, Scott M. |4 oth | |
| 700 | 1 | |a Morris, Richard V. |4 oth | |
| 700 | 1 | |a Graff, Trevor G. |4 oth | |
| 700 | 1 | |a Mertzman, Stanley A. |4 oth | |
| 700 | 1 | |a Ehlmann, Bethany L. |4 oth | |
| 700 | 1 | |a Belgacem, Ines |4 oth | |
| 700 | 1 | |a Newsom, Horton |4 oth | |
| 700 | 1 | |a Clark, Ben C. |4 oth | |
| 700 | 1 | |a Melikechi, Noureddine |4 oth | |
| 700 | 1 | |a Mezzacappa, Alissa |4 oth | |
| 700 | 1 | |a McInroy, Rhonda E. |4 oth | |
| 700 | 1 | |a Martinez, Ronald |4 oth | |
| 700 | 1 | |a Gasda, Patrick |4 oth | |
| 700 | 1 | |a Gasnault, Olivier |4 oth | |
| 700 | 1 | |a Maurice, Sylvestre |4 oth | |
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10.1016/j.sab.2016.12.003 doi GBVA2017012000018.pica (DE-627)ELV025335286 (ELSEVIER)S0584-8547(16)30391-3 DE-627 ger DE-627 rakwb eng 540 530 540 DE-600 530 DE-600 540 VZ 42.15 bkl Clegg, Samuel M. verfasserin aut Recalibration of the Mars Science Laboratory ChemCam instrument with an expanded geochemical database 2017transfer abstract 22 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The ChemCam Laser-Induced Breakdown Spectroscopy (LIBS) instrument onboard the Mars Science Laboratory (MSL) rover Curiosity has obtained >300,000 spectra of rock and soil analysis targets since landing at Gale Crater in 2012, and the spectra represent perhaps the largest publicly-available LIBS datasets. The compositions of the major elements, reported as oxides (SiO2, TiO2, Al2O3, FeOT, MgO, CaO, Na2O, K2O), have been re-calibrated using a laboratory LIBS instrument, Mars-like atmospheric conditions, and a much larger set of standards (408) that span a wider compositional range than previously employed. The new calibration uses a combination of partial least squares (PLS1) and Independent Component Analysis (ICA) algorithms, together with a calibration transfer matrix to minimize differences between the conditions under which the standards were analyzed in the laboratory and the conditions on Mars. While the previous model provided good results in the compositional range near the average Mars surface composition, the new model fits the extreme compositions far better. Examples are given for plagioclase feldspars, where silicon was significantly over-estimated by the previous model, and for calcium-sulfate veins, where silicon compositions near zero were inaccurate. The uncertainties of major element abundances are described as a function of the abundances, and are overall significantly lower than the previous model, enabling important new geochemical interpretations of the data. The ChemCam Laser-Induced Breakdown Spectroscopy (LIBS) instrument onboard the Mars Science Laboratory (MSL) rover Curiosity has obtained >300,000 spectra of rock and soil analysis targets since landing at Gale Crater in 2012, and the spectra represent perhaps the largest publicly-available LIBS datasets. The compositions of the major elements, reported as oxides (SiO2, TiO2, Al2O3, FeOT, MgO, CaO, Na2O, K2O), have been re-calibrated using a laboratory LIBS instrument, Mars-like atmospheric conditions, and a much larger set of standards (408) that span a wider compositional range than previously employed. The new calibration uses a combination of partial least squares (PLS1) and Independent Component Analysis (ICA) algorithms, together with a calibration transfer matrix to minimize differences between the conditions under which the standards were analyzed in the laboratory and the conditions on Mars. While the previous model provided good results in the compositional range near the average Mars surface composition, the new model fits the extreme compositions far better. Examples are given for plagioclase feldspars, where silicon was significantly over-estimated by the previous model, and for calcium-sulfate veins, where silicon compositions near zero were inaccurate. The uncertainties of major element abundances are described as a function of the abundances, and are overall significantly lower than the previous model, enabling important new geochemical interpretations of the data. Wiens, Roger C. oth Anderson, Ryan oth Forni, Olivier oth Frydenvang, Jens oth Lasue, Jeremie oth Cousin, Agnes oth Payré, Valérie oth Boucher, Tommy oth Dyar, M. Darby oth McLennan, Scott M. oth Morris, Richard V. oth Graff, Trevor G. oth Mertzman, Stanley A. oth Ehlmann, Bethany L. oth Belgacem, Ines oth Newsom, Horton oth Clark, Ben C. oth Melikechi, Noureddine oth Mezzacappa, Alissa oth McInroy, Rhonda E. oth Martinez, Ronald oth Gasda, Patrick oth Gasnault, Olivier oth Maurice, Sylvestre oth Enthalten in Elsevier Li, Qiang ELSEVIER Dual stimuli-responsive polypeptide-calcium phosphate hybrid nanoparticles for co-delivery of multiple drugs in cancer therapy 2021 Amsterdam [u.a.] (DE-627)ELV005740053 volume:129 year:2017 day:1 month:03 pages:64-85 extent:22 https://doi.org/10.1016/j.sab.2016.12.003 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 42.15 Zellbiologie VZ AR 129 2017 1 0301 64-85 22 045F 540 |
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10.1016/j.sab.2016.12.003 doi GBVA2017012000018.pica (DE-627)ELV025335286 (ELSEVIER)S0584-8547(16)30391-3 DE-627 ger DE-627 rakwb eng 540 530 540 DE-600 530 DE-600 540 VZ 42.15 bkl Clegg, Samuel M. verfasserin aut Recalibration of the Mars Science Laboratory ChemCam instrument with an expanded geochemical database 2017transfer abstract 22 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The ChemCam Laser-Induced Breakdown Spectroscopy (LIBS) instrument onboard the Mars Science Laboratory (MSL) rover Curiosity has obtained >300,000 spectra of rock and soil analysis targets since landing at Gale Crater in 2012, and the spectra represent perhaps the largest publicly-available LIBS datasets. The compositions of the major elements, reported as oxides (SiO2, TiO2, Al2O3, FeOT, MgO, CaO, Na2O, K2O), have been re-calibrated using a laboratory LIBS instrument, Mars-like atmospheric conditions, and a much larger set of standards (408) that span a wider compositional range than previously employed. The new calibration uses a combination of partial least squares (PLS1) and Independent Component Analysis (ICA) algorithms, together with a calibration transfer matrix to minimize differences between the conditions under which the standards were analyzed in the laboratory and the conditions on Mars. While the previous model provided good results in the compositional range near the average Mars surface composition, the new model fits the extreme compositions far better. Examples are given for plagioclase feldspars, where silicon was significantly over-estimated by the previous model, and for calcium-sulfate veins, where silicon compositions near zero were inaccurate. The uncertainties of major element abundances are described as a function of the abundances, and are overall significantly lower than the previous model, enabling important new geochemical interpretations of the data. The ChemCam Laser-Induced Breakdown Spectroscopy (LIBS) instrument onboard the Mars Science Laboratory (MSL) rover Curiosity has obtained >300,000 spectra of rock and soil analysis targets since landing at Gale Crater in 2012, and the spectra represent perhaps the largest publicly-available LIBS datasets. The compositions of the major elements, reported as oxides (SiO2, TiO2, Al2O3, FeOT, MgO, CaO, Na2O, K2O), have been re-calibrated using a laboratory LIBS instrument, Mars-like atmospheric conditions, and a much larger set of standards (408) that span a wider compositional range than previously employed. The new calibration uses a combination of partial least squares (PLS1) and Independent Component Analysis (ICA) algorithms, together with a calibration transfer matrix to minimize differences between the conditions under which the standards were analyzed in the laboratory and the conditions on Mars. While the previous model provided good results in the compositional range near the average Mars surface composition, the new model fits the extreme compositions far better. Examples are given for plagioclase feldspars, where silicon was significantly over-estimated by the previous model, and for calcium-sulfate veins, where silicon compositions near zero were inaccurate. The uncertainties of major element abundances are described as a function of the abundances, and are overall significantly lower than the previous model, enabling important new geochemical interpretations of the data. Wiens, Roger C. oth Anderson, Ryan oth Forni, Olivier oth Frydenvang, Jens oth Lasue, Jeremie oth Cousin, Agnes oth Payré, Valérie oth Boucher, Tommy oth Dyar, M. Darby oth McLennan, Scott M. oth Morris, Richard V. oth Graff, Trevor G. oth Mertzman, Stanley A. oth Ehlmann, Bethany L. oth Belgacem, Ines oth Newsom, Horton oth Clark, Ben C. oth Melikechi, Noureddine oth Mezzacappa, Alissa oth McInroy, Rhonda E. oth Martinez, Ronald oth Gasda, Patrick oth Gasnault, Olivier oth Maurice, Sylvestre oth Enthalten in Elsevier Li, Qiang ELSEVIER Dual stimuli-responsive polypeptide-calcium phosphate hybrid nanoparticles for co-delivery of multiple drugs in cancer therapy 2021 Amsterdam [u.a.] (DE-627)ELV005740053 volume:129 year:2017 day:1 month:03 pages:64-85 extent:22 https://doi.org/10.1016/j.sab.2016.12.003 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 42.15 Zellbiologie VZ AR 129 2017 1 0301 64-85 22 045F 540 |
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10.1016/j.sab.2016.12.003 doi GBVA2017012000018.pica (DE-627)ELV025335286 (ELSEVIER)S0584-8547(16)30391-3 DE-627 ger DE-627 rakwb eng 540 530 540 DE-600 530 DE-600 540 VZ 42.15 bkl Clegg, Samuel M. verfasserin aut Recalibration of the Mars Science Laboratory ChemCam instrument with an expanded geochemical database 2017transfer abstract 22 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The ChemCam Laser-Induced Breakdown Spectroscopy (LIBS) instrument onboard the Mars Science Laboratory (MSL) rover Curiosity has obtained >300,000 spectra of rock and soil analysis targets since landing at Gale Crater in 2012, and the spectra represent perhaps the largest publicly-available LIBS datasets. The compositions of the major elements, reported as oxides (SiO2, TiO2, Al2O3, FeOT, MgO, CaO, Na2O, K2O), have been re-calibrated using a laboratory LIBS instrument, Mars-like atmospheric conditions, and a much larger set of standards (408) that span a wider compositional range than previously employed. The new calibration uses a combination of partial least squares (PLS1) and Independent Component Analysis (ICA) algorithms, together with a calibration transfer matrix to minimize differences between the conditions under which the standards were analyzed in the laboratory and the conditions on Mars. While the previous model provided good results in the compositional range near the average Mars surface composition, the new model fits the extreme compositions far better. Examples are given for plagioclase feldspars, where silicon was significantly over-estimated by the previous model, and for calcium-sulfate veins, where silicon compositions near zero were inaccurate. The uncertainties of major element abundances are described as a function of the abundances, and are overall significantly lower than the previous model, enabling important new geochemical interpretations of the data. The ChemCam Laser-Induced Breakdown Spectroscopy (LIBS) instrument onboard the Mars Science Laboratory (MSL) rover Curiosity has obtained >300,000 spectra of rock and soil analysis targets since landing at Gale Crater in 2012, and the spectra represent perhaps the largest publicly-available LIBS datasets. The compositions of the major elements, reported as oxides (SiO2, TiO2, Al2O3, FeOT, MgO, CaO, Na2O, K2O), have been re-calibrated using a laboratory LIBS instrument, Mars-like atmospheric conditions, and a much larger set of standards (408) that span a wider compositional range than previously employed. The new calibration uses a combination of partial least squares (PLS1) and Independent Component Analysis (ICA) algorithms, together with a calibration transfer matrix to minimize differences between the conditions under which the standards were analyzed in the laboratory and the conditions on Mars. While the previous model provided good results in the compositional range near the average Mars surface composition, the new model fits the extreme compositions far better. Examples are given for plagioclase feldspars, where silicon was significantly over-estimated by the previous model, and for calcium-sulfate veins, where silicon compositions near zero were inaccurate. The uncertainties of major element abundances are described as a function of the abundances, and are overall significantly lower than the previous model, enabling important new geochemical interpretations of the data. Wiens, Roger C. oth Anderson, Ryan oth Forni, Olivier oth Frydenvang, Jens oth Lasue, Jeremie oth Cousin, Agnes oth Payré, Valérie oth Boucher, Tommy oth Dyar, M. Darby oth McLennan, Scott M. oth Morris, Richard V. oth Graff, Trevor G. oth Mertzman, Stanley A. oth Ehlmann, Bethany L. oth Belgacem, Ines oth Newsom, Horton oth Clark, Ben C. oth Melikechi, Noureddine oth Mezzacappa, Alissa oth McInroy, Rhonda E. oth Martinez, Ronald oth Gasda, Patrick oth Gasnault, Olivier oth Maurice, Sylvestre oth Enthalten in Elsevier Li, Qiang ELSEVIER Dual stimuli-responsive polypeptide-calcium phosphate hybrid nanoparticles for co-delivery of multiple drugs in cancer therapy 2021 Amsterdam [u.a.] (DE-627)ELV005740053 volume:129 year:2017 day:1 month:03 pages:64-85 extent:22 https://doi.org/10.1016/j.sab.2016.12.003 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 42.15 Zellbiologie VZ AR 129 2017 1 0301 64-85 22 045F 540 |
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10.1016/j.sab.2016.12.003 doi GBVA2017012000018.pica (DE-627)ELV025335286 (ELSEVIER)S0584-8547(16)30391-3 DE-627 ger DE-627 rakwb eng 540 530 540 DE-600 530 DE-600 540 VZ 42.15 bkl Clegg, Samuel M. verfasserin aut Recalibration of the Mars Science Laboratory ChemCam instrument with an expanded geochemical database 2017transfer abstract 22 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The ChemCam Laser-Induced Breakdown Spectroscopy (LIBS) instrument onboard the Mars Science Laboratory (MSL) rover Curiosity has obtained >300,000 spectra of rock and soil analysis targets since landing at Gale Crater in 2012, and the spectra represent perhaps the largest publicly-available LIBS datasets. The compositions of the major elements, reported as oxides (SiO2, TiO2, Al2O3, FeOT, MgO, CaO, Na2O, K2O), have been re-calibrated using a laboratory LIBS instrument, Mars-like atmospheric conditions, and a much larger set of standards (408) that span a wider compositional range than previously employed. The new calibration uses a combination of partial least squares (PLS1) and Independent Component Analysis (ICA) algorithms, together with a calibration transfer matrix to minimize differences between the conditions under which the standards were analyzed in the laboratory and the conditions on Mars. While the previous model provided good results in the compositional range near the average Mars surface composition, the new model fits the extreme compositions far better. Examples are given for plagioclase feldspars, where silicon was significantly over-estimated by the previous model, and for calcium-sulfate veins, where silicon compositions near zero were inaccurate. The uncertainties of major element abundances are described as a function of the abundances, and are overall significantly lower than the previous model, enabling important new geochemical interpretations of the data. The ChemCam Laser-Induced Breakdown Spectroscopy (LIBS) instrument onboard the Mars Science Laboratory (MSL) rover Curiosity has obtained >300,000 spectra of rock and soil analysis targets since landing at Gale Crater in 2012, and the spectra represent perhaps the largest publicly-available LIBS datasets. The compositions of the major elements, reported as oxides (SiO2, TiO2, Al2O3, FeOT, MgO, CaO, Na2O, K2O), have been re-calibrated using a laboratory LIBS instrument, Mars-like atmospheric conditions, and a much larger set of standards (408) that span a wider compositional range than previously employed. The new calibration uses a combination of partial least squares (PLS1) and Independent Component Analysis (ICA) algorithms, together with a calibration transfer matrix to minimize differences between the conditions under which the standards were analyzed in the laboratory and the conditions on Mars. While the previous model provided good results in the compositional range near the average Mars surface composition, the new model fits the extreme compositions far better. Examples are given for plagioclase feldspars, where silicon was significantly over-estimated by the previous model, and for calcium-sulfate veins, where silicon compositions near zero were inaccurate. The uncertainties of major element abundances are described as a function of the abundances, and are overall significantly lower than the previous model, enabling important new geochemical interpretations of the data. Wiens, Roger C. oth Anderson, Ryan oth Forni, Olivier oth Frydenvang, Jens oth Lasue, Jeremie oth Cousin, Agnes oth Payré, Valérie oth Boucher, Tommy oth Dyar, M. Darby oth McLennan, Scott M. oth Morris, Richard V. oth Graff, Trevor G. oth Mertzman, Stanley A. oth Ehlmann, Bethany L. oth Belgacem, Ines oth Newsom, Horton oth Clark, Ben C. oth Melikechi, Noureddine oth Mezzacappa, Alissa oth McInroy, Rhonda E. oth Martinez, Ronald oth Gasda, Patrick oth Gasnault, Olivier oth Maurice, Sylvestre oth Enthalten in Elsevier Li, Qiang ELSEVIER Dual stimuli-responsive polypeptide-calcium phosphate hybrid nanoparticles for co-delivery of multiple drugs in cancer therapy 2021 Amsterdam [u.a.] (DE-627)ELV005740053 volume:129 year:2017 day:1 month:03 pages:64-85 extent:22 https://doi.org/10.1016/j.sab.2016.12.003 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 42.15 Zellbiologie VZ AR 129 2017 1 0301 64-85 22 045F 540 |
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10.1016/j.sab.2016.12.003 doi GBVA2017012000018.pica (DE-627)ELV025335286 (ELSEVIER)S0584-8547(16)30391-3 DE-627 ger DE-627 rakwb eng 540 530 540 DE-600 530 DE-600 540 VZ 42.15 bkl Clegg, Samuel M. verfasserin aut Recalibration of the Mars Science Laboratory ChemCam instrument with an expanded geochemical database 2017transfer abstract 22 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The ChemCam Laser-Induced Breakdown Spectroscopy (LIBS) instrument onboard the Mars Science Laboratory (MSL) rover Curiosity has obtained >300,000 spectra of rock and soil analysis targets since landing at Gale Crater in 2012, and the spectra represent perhaps the largest publicly-available LIBS datasets. The compositions of the major elements, reported as oxides (SiO2, TiO2, Al2O3, FeOT, MgO, CaO, Na2O, K2O), have been re-calibrated using a laboratory LIBS instrument, Mars-like atmospheric conditions, and a much larger set of standards (408) that span a wider compositional range than previously employed. The new calibration uses a combination of partial least squares (PLS1) and Independent Component Analysis (ICA) algorithms, together with a calibration transfer matrix to minimize differences between the conditions under which the standards were analyzed in the laboratory and the conditions on Mars. While the previous model provided good results in the compositional range near the average Mars surface composition, the new model fits the extreme compositions far better. Examples are given for plagioclase feldspars, where silicon was significantly over-estimated by the previous model, and for calcium-sulfate veins, where silicon compositions near zero were inaccurate. The uncertainties of major element abundances are described as a function of the abundances, and are overall significantly lower than the previous model, enabling important new geochemical interpretations of the data. The ChemCam Laser-Induced Breakdown Spectroscopy (LIBS) instrument onboard the Mars Science Laboratory (MSL) rover Curiosity has obtained >300,000 spectra of rock and soil analysis targets since landing at Gale Crater in 2012, and the spectra represent perhaps the largest publicly-available LIBS datasets. The compositions of the major elements, reported as oxides (SiO2, TiO2, Al2O3, FeOT, MgO, CaO, Na2O, K2O), have been re-calibrated using a laboratory LIBS instrument, Mars-like atmospheric conditions, and a much larger set of standards (408) that span a wider compositional range than previously employed. The new calibration uses a combination of partial least squares (PLS1) and Independent Component Analysis (ICA) algorithms, together with a calibration transfer matrix to minimize differences between the conditions under which the standards were analyzed in the laboratory and the conditions on Mars. While the previous model provided good results in the compositional range near the average Mars surface composition, the new model fits the extreme compositions far better. Examples are given for plagioclase feldspars, where silicon was significantly over-estimated by the previous model, and for calcium-sulfate veins, where silicon compositions near zero were inaccurate. The uncertainties of major element abundances are described as a function of the abundances, and are overall significantly lower than the previous model, enabling important new geochemical interpretations of the data. Wiens, Roger C. oth Anderson, Ryan oth Forni, Olivier oth Frydenvang, Jens oth Lasue, Jeremie oth Cousin, Agnes oth Payré, Valérie oth Boucher, Tommy oth Dyar, M. Darby oth McLennan, Scott M. oth Morris, Richard V. oth Graff, Trevor G. oth Mertzman, Stanley A. oth Ehlmann, Bethany L. oth Belgacem, Ines oth Newsom, Horton oth Clark, Ben C. oth Melikechi, Noureddine oth Mezzacappa, Alissa oth McInroy, Rhonda E. oth Martinez, Ronald oth Gasda, Patrick oth Gasnault, Olivier oth Maurice, Sylvestre oth Enthalten in Elsevier Li, Qiang ELSEVIER Dual stimuli-responsive polypeptide-calcium phosphate hybrid nanoparticles for co-delivery of multiple drugs in cancer therapy 2021 Amsterdam [u.a.] (DE-627)ELV005740053 volume:129 year:2017 day:1 month:03 pages:64-85 extent:22 https://doi.org/10.1016/j.sab.2016.12.003 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 42.15 Zellbiologie VZ AR 129 2017 1 0301 64-85 22 045F 540 |
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Clegg, Samuel M. @@aut@@ Wiens, Roger C. @@oth@@ Anderson, Ryan @@oth@@ Forni, Olivier @@oth@@ Frydenvang, Jens @@oth@@ Lasue, Jeremie @@oth@@ Cousin, Agnes @@oth@@ Payré, Valérie @@oth@@ Boucher, Tommy @@oth@@ Dyar, M. Darby @@oth@@ McLennan, Scott M. @@oth@@ Morris, Richard V. @@oth@@ Graff, Trevor G. @@oth@@ Mertzman, Stanley A. @@oth@@ Ehlmann, Bethany L. @@oth@@ Belgacem, Ines @@oth@@ Newsom, Horton @@oth@@ Clark, Ben C. @@oth@@ Melikechi, Noureddine @@oth@@ Mezzacappa, Alissa @@oth@@ McInroy, Rhonda E. @@oth@@ Martinez, Ronald @@oth@@ Gasda, Patrick @@oth@@ Gasnault, Olivier @@oth@@ Maurice, Sylvestre @@oth@@ |
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Recalibration of the Mars Science Laboratory ChemCam instrument with an expanded geochemical database |
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The ChemCam Laser-Induced Breakdown Spectroscopy (LIBS) instrument onboard the Mars Science Laboratory (MSL) rover Curiosity has obtained >300,000 spectra of rock and soil analysis targets since landing at Gale Crater in 2012, and the spectra represent perhaps the largest publicly-available LIBS datasets. The compositions of the major elements, reported as oxides (SiO2, TiO2, Al2O3, FeOT, MgO, CaO, Na2O, K2O), have been re-calibrated using a laboratory LIBS instrument, Mars-like atmospheric conditions, and a much larger set of standards (408) that span a wider compositional range than previously employed. The new calibration uses a combination of partial least squares (PLS1) and Independent Component Analysis (ICA) algorithms, together with a calibration transfer matrix to minimize differences between the conditions under which the standards were analyzed in the laboratory and the conditions on Mars. While the previous model provided good results in the compositional range near the average Mars surface composition, the new model fits the extreme compositions far better. Examples are given for plagioclase feldspars, where silicon was significantly over-estimated by the previous model, and for calcium-sulfate veins, where silicon compositions near zero were inaccurate. The uncertainties of major element abundances are described as a function of the abundances, and are overall significantly lower than the previous model, enabling important new geochemical interpretations of the data. |
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The ChemCam Laser-Induced Breakdown Spectroscopy (LIBS) instrument onboard the Mars Science Laboratory (MSL) rover Curiosity has obtained >300,000 spectra of rock and soil analysis targets since landing at Gale Crater in 2012, and the spectra represent perhaps the largest publicly-available LIBS datasets. The compositions of the major elements, reported as oxides (SiO2, TiO2, Al2O3, FeOT, MgO, CaO, Na2O, K2O), have been re-calibrated using a laboratory LIBS instrument, Mars-like atmospheric conditions, and a much larger set of standards (408) that span a wider compositional range than previously employed. The new calibration uses a combination of partial least squares (PLS1) and Independent Component Analysis (ICA) algorithms, together with a calibration transfer matrix to minimize differences between the conditions under which the standards were analyzed in the laboratory and the conditions on Mars. While the previous model provided good results in the compositional range near the average Mars surface composition, the new model fits the extreme compositions far better. Examples are given for plagioclase feldspars, where silicon was significantly over-estimated by the previous model, and for calcium-sulfate veins, where silicon compositions near zero were inaccurate. The uncertainties of major element abundances are described as a function of the abundances, and are overall significantly lower than the previous model, enabling important new geochemical interpretations of the data. |
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The ChemCam Laser-Induced Breakdown Spectroscopy (LIBS) instrument onboard the Mars Science Laboratory (MSL) rover Curiosity has obtained >300,000 spectra of rock and soil analysis targets since landing at Gale Crater in 2012, and the spectra represent perhaps the largest publicly-available LIBS datasets. The compositions of the major elements, reported as oxides (SiO2, TiO2, Al2O3, FeOT, MgO, CaO, Na2O, K2O), have been re-calibrated using a laboratory LIBS instrument, Mars-like atmospheric conditions, and a much larger set of standards (408) that span a wider compositional range than previously employed. The new calibration uses a combination of partial least squares (PLS1) and Independent Component Analysis (ICA) algorithms, together with a calibration transfer matrix to minimize differences between the conditions under which the standards were analyzed in the laboratory and the conditions on Mars. While the previous model provided good results in the compositional range near the average Mars surface composition, the new model fits the extreme compositions far better. Examples are given for plagioclase feldspars, where silicon was significantly over-estimated by the previous model, and for calcium-sulfate veins, where silicon compositions near zero were inaccurate. The uncertainties of major element abundances are described as a function of the abundances, and are overall significantly lower than the previous model, enabling important new geochemical interpretations of the data. |
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Recalibration of the Mars Science Laboratory ChemCam instrument with an expanded geochemical database |
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The uncertainties of major element abundances are described as a function of the abundances, and are overall significantly lower than the previous model, enabling important new geochemical interpretations of the data.</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">The ChemCam Laser-Induced Breakdown Spectroscopy (LIBS) instrument onboard the Mars Science Laboratory (MSL) rover Curiosity has obtained >300,000 spectra of rock and soil analysis targets since landing at Gale Crater in 2012, and the spectra represent perhaps the largest publicly-available LIBS datasets. The compositions of the major elements, reported as oxides (SiO2, TiO2, Al2O3, FeOT, MgO, CaO, Na2O, K2O), have been re-calibrated using a laboratory LIBS instrument, Mars-like atmospheric conditions, and a much larger set of standards (408) that span a wider compositional range than previously employed. The new calibration uses a combination of partial least squares (PLS1) and Independent Component Analysis (ICA) algorithms, together with a calibration transfer matrix to minimize differences between the conditions under which the standards were analyzed in the laboratory and the conditions on Mars. While the previous model provided good results in the compositional range near the average Mars surface composition, the new model fits the extreme compositions far better. Examples are given for plagioclase feldspars, where silicon was significantly over-estimated by the previous model, and for calcium-sulfate veins, where silicon compositions near zero were inaccurate. The uncertainties of major element abundances are described as a function of the abundances, and are overall significantly lower than the previous model, enabling important new geochemical interpretations of the data.</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Wiens, Roger C.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Anderson, Ryan</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Forni, Olivier</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Frydenvang, Jens</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Lasue, Jeremie</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Cousin, Agnes</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Payré, Valérie</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Boucher, Tommy</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Dyar, M. Darby</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">McLennan, Scott M.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Morris, Richard V.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Graff, Trevor G.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Mertzman, Stanley A.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Ehlmann, Bethany L.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Belgacem, Ines</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Newsom, Horton</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Clark, Ben C.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Melikechi, Noureddine</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Mezzacappa, Alissa</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">McInroy, Rhonda E.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Martinez, Ronald</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Gasda, Patrick</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Gasnault, Olivier</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Maurice, Sylvestre</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="n">Elsevier</subfield><subfield code="a">Li, Qiang ELSEVIER</subfield><subfield code="t">Dual stimuli-responsive polypeptide-calcium phosphate hybrid nanoparticles for co-delivery of multiple drugs in cancer therapy</subfield><subfield code="d">2021</subfield><subfield code="g">Amsterdam [u.a.]</subfield><subfield code="w">(DE-627)ELV005740053</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:129</subfield><subfield code="g">year:2017</subfield><subfield code="g">day:1</subfield><subfield code="g">month:03</subfield><subfield code="g">pages:64-85</subfield><subfield code="g">extent:22</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://doi.org/10.1016/j.sab.2016.12.003</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ELV</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-PHA</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">42.15</subfield><subfield code="j">Zellbiologie</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">129</subfield><subfield code="j">2017</subfield><subfield code="b">1</subfield><subfield code="c">0301</subfield><subfield code="h">64-85</subfield><subfield code="g">22</subfield></datafield><datafield tag="953" ind1=" " ind2=" "><subfield code="2">045F</subfield><subfield code="a">540</subfield></datafield></record></collection>
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