The Experts below are selected from a list of 4983 Experts worldwide ranked by ideXlab platform
Blaž Likozar - One of the best experts on this subject based on the ideXlab platform.
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Application of Mössbauer spectroscopy in industrial heterogeneous catalysis: effect of oxidant on FePO4 Material Phase transformations in direct methanol synthesis from methane
Hyperfine Interactions, 2017Co-Authors: Venkata D. B. C. Dasireddy, Faiza B. Khan, Darko Hanžel, Krish Bharuth-ram, Blaž LikozarAbstract:The effect of the FePO4 Material Phase transformation in the direct selective oxidation of methane to methanol was studied using various oxidants, i.e. O2, H2O and N2O. The Phases of the heterogeneous catalyst applied, before and after the reactions, were characterized by M¨ossbauer spectroscopy. The main reaction products were methanol, carbon monoxide and carbon dioxide, whereas formaldehyde was produced in rather minute amounts. The Mossbauer spectra showed the change of the initial catalyst Material, FePO4 (tridymite-like Phase (tdm)), to the reduced metal form, iron(II) pyrophosphate, Fe2P2O7, and thereafter, the Material Phase change was governed by the oxidation with individual oxidizing species.Mossbauer spectroscopy measurements applied along with X-ray diffraction (XRD) studies on fresh, reduced and spent catalytic Materials demonstrated a transformation of the catalyst to a mixture of Phases which depended on operating process conditions. Generally, activity was low and should be a subject of further Material optimization and engineering, while the selectivity towards methanol at low temperatures applied was adequate. The proceeding redox mechanism should thus play a key role in catalytic Material design, while the advantage of iron-based heterogeneous catalysts primarily lies in them being comparably inexpensive and comprising non-critical raw Materials only.
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Application of Mössbauer spectroscopy in industrial heterogeneous catalysis: effect of oxidant on FePO4Material Phase transformations in direct methanol synthesis from methane
Hyperfine Interactions, 2017Co-Authors: Venkata D. B. C. Dasireddy, Faiza B. Khan, Krish Bharuth-ram, Darko Hanžel, Blaž LikozarAbstract:© 2017, Springer International Publishing Switzerland. The effect of the FePO 4 Material Phase transformation in the direct selective oxidation of methane to methanol was studied using various oxidants, i.e. O 2 , H 2 O and N 2 O. The Phases of the heterogeneous catalyst applied, before and after the reactions, were characterized by M¨ossbauer spectroscopy. The main reaction products were methanol, carbon monoxide and carbon dioxide, whereas formaldehyde was produced in rather minute amounts. The Mössbauer spectra showed the change of the initial catalyst Material, FePO 4 (tridymite-like Phase (tdm)), to the reduced metal form, iron(II) pyrophosphate, Fe 2 P 2 O 7 , and thereafter, the Material Phase change was governed by the oxidation with individual oxidizing species.Mössbauer spectroscopy measurements applied along with X-ray diffraction (XRD) studies on fresh, reduced and spent catalytic Materials demonstrated a transformation of the catalyst to a mixture of Phases which depended on operating process conditions. Generally, activity was low and should be a subject of further Material optimization and engineering, while the selectivity towards methanol at low temperatures applied was adequate. The proceeding redox mechanism should thus play a key role in catalytic Material design, while the advantage of iron-based heterogeneous catalysts primarily lies in them being comparably inexpensive and comprising non-critical raw Materials only.
I. G. Koprinkov - One of the best experts on this subject based on the ideXlab platform.
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Phase sensitive adiabatic states, or does the Material Phase recognize the physical reality?
Physics Letters A, 2020Co-Authors: I. G. KoprinkovAbstract:Phase sensitive adiabatic states for a quantum system interacting with an electromagnetic field have been derived taking into account all Material Phase factors of the initial bare states. The adiabatic states so obtained show a traceable Phase behavior, causally depending on the initial conditions and the relevant physical processes. Experimental appearance of the Material Phase effects has been discussed.Comment: 14 pages, 2 figure
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Material Phase Causality or a Dynamics-Statistical Interpretation of Quantum Mechanics
2010Co-Authors: I. G. KoprinkovAbstract:The internal Phase dynamics of a quantum system interacting with an electromagnetic field is revealed in details. Theoretical and experimental evidences of a causal relation of the Phase of the wave function to the dynamics of the quantum system are presented sistematically for the first time. A dynamics‐statistical interpretation of the quantum mechanics is introduced.
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Theoretical and Experimental Evidences of Material Phase Causality. Dynamics-Statistical Interpretation of the Wave Function
arXiv: Quantum Physics, 2008Co-Authors: I. G. KoprinkovAbstract:The internal Phase dynamics of a quantum system is revealed in details. Theoretical and experimental evidences of existence of a causal relation of the Phase of the wave function with the dynamics of the quantum system are presented sistematically for the first time. A new, dynamics-statistical interpretation of the quantum mechanics is introduced. A particle-wave duality picture incorporated in the wave function through its Phase and amplitude is considered.
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On the Theoretical and Experimental Evidences of Material Phase Causality
arXiv: Quantum Physics, 2006Co-Authors: I. G. KoprinkovAbstract:We present theoretical and experimental evidences showing that the Material Phase of the state vector is causally related with the dynamic of quantum system and may have observable physical consequences.
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Phase sensitive adiabatic states, or does the Material Phase recognize the physical reality?
Physics Letters A, 2000Co-Authors: I. G. KoprinkovAbstract:Abstract Phase sensitive adiabatic states for a quantum system interacting with an electromagnetic field have been derived taking into account all Material Phase factors of the initial bare states. The adiabatic states so obtained show a traceable Phase behavior, causally depending on the initial conditions and the relevant physical processes. Experimental appearance of the Material Phase effects has been discussed.
James K. Guest - One of the best experts on this subject based on the ideXlab platform.
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Projection-based two-Phase minimum and maximum length scale control in topology optimization
Structural and Multidisciplinary Optimization, 2018Co-Authors: Josephine V. Carstensen, James K. GuestAbstract:Length scale control in topology optimization is an important area of research with direct implications on numerical stability and solution manufacturability. Projection-based algorithms for continuum topology optimization have received considerable attention in recent years due to their ability to control minimum length scale in a flexible and computationally efficient manner. In this paper, we propose a new projection-based algorithm that embeds minimum length scale control on two Material Phases (e.g., solid and void) as well as optional maximum length scale on one Material Phase (e.g., solid or void) into the projection methodology used for Material distribution approaches to topology optimization. The proposed algorithms are demonstrated on benchmark problems and are shown to satisfy the length scale constraints imposed.
Venkata D. B. C. Dasireddy - One of the best experts on this subject based on the ideXlab platform.
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Application of Mössbauer spectroscopy in industrial heterogeneous catalysis: effect of oxidant on FePO4 Material Phase transformations in direct methanol synthesis from methane
Hyperfine Interactions, 2017Co-Authors: Venkata D. B. C. Dasireddy, Faiza B. Khan, Darko Hanžel, Krish Bharuth-ram, Blaž LikozarAbstract:The effect of the FePO4 Material Phase transformation in the direct selective oxidation of methane to methanol was studied using various oxidants, i.e. O2, H2O and N2O. The Phases of the heterogeneous catalyst applied, before and after the reactions, were characterized by M¨ossbauer spectroscopy. The main reaction products were methanol, carbon monoxide and carbon dioxide, whereas formaldehyde was produced in rather minute amounts. The Mossbauer spectra showed the change of the initial catalyst Material, FePO4 (tridymite-like Phase (tdm)), to the reduced metal form, iron(II) pyrophosphate, Fe2P2O7, and thereafter, the Material Phase change was governed by the oxidation with individual oxidizing species.Mossbauer spectroscopy measurements applied along with X-ray diffraction (XRD) studies on fresh, reduced and spent catalytic Materials demonstrated a transformation of the catalyst to a mixture of Phases which depended on operating process conditions. Generally, activity was low and should be a subject of further Material optimization and engineering, while the selectivity towards methanol at low temperatures applied was adequate. The proceeding redox mechanism should thus play a key role in catalytic Material design, while the advantage of iron-based heterogeneous catalysts primarily lies in them being comparably inexpensive and comprising non-critical raw Materials only.
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Application of Mössbauer spectroscopy in industrial heterogeneous catalysis: effect of oxidant on FePO4Material Phase transformations in direct methanol synthesis from methane
Hyperfine Interactions, 2017Co-Authors: Venkata D. B. C. Dasireddy, Faiza B. Khan, Krish Bharuth-ram, Darko Hanžel, Blaž LikozarAbstract:© 2017, Springer International Publishing Switzerland. The effect of the FePO 4 Material Phase transformation in the direct selective oxidation of methane to methanol was studied using various oxidants, i.e. O 2 , H 2 O and N 2 O. The Phases of the heterogeneous catalyst applied, before and after the reactions, were characterized by M¨ossbauer spectroscopy. The main reaction products were methanol, carbon monoxide and carbon dioxide, whereas formaldehyde was produced in rather minute amounts. The Mössbauer spectra showed the change of the initial catalyst Material, FePO 4 (tridymite-like Phase (tdm)), to the reduced metal form, iron(II) pyrophosphate, Fe 2 P 2 O 7 , and thereafter, the Material Phase change was governed by the oxidation with individual oxidizing species.Mössbauer spectroscopy measurements applied along with X-ray diffraction (XRD) studies on fresh, reduced and spent catalytic Materials demonstrated a transformation of the catalyst to a mixture of Phases which depended on operating process conditions. Generally, activity was low and should be a subject of further Material optimization and engineering, while the selectivity towards methanol at low temperatures applied was adequate. The proceeding redox mechanism should thus play a key role in catalytic Material design, while the advantage of iron-based heterogeneous catalysts primarily lies in them being comparably inexpensive and comprising non-critical raw Materials only.
Thomas M. Dillon - One of the best experts on this subject based on the ideXlab platform.
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Bioassessment Methodologies for the Regulatory Testing of Freshwater Dredged Material. Phase 2
1990Co-Authors: Greg Busacker, Dennis Anderson, Alfreda B. Gibson, Thomas M. DillonAbstract:Abstract : This report represents the second Phase of a 3-year (three-Phase) project that the Wisconsin Department of Natural Resources (WDNR) requested from the St. Paul District as planning assistance under Section 22 of the Water Resources Development Act of 1974 (Public Law 93-251). The State of Wisconsin is interested in identifying appropriate bioassessment testing methodologies for the regulatory testing of freshwater sediments scheduled for dredging and open- water disposal. The report includes discussions and recommendations for specific approaches to bioassessment methods in the tiered testing protocol. The methods described in this report have the potential to be the most frequently used testing techniques, and represent the backbone of the tiered testing evaluation for regulatory testing of freshwater sediments. Keywords: Acute lethality test; Bioassessment techniques; Chronic life cycle test; Dredged Material; Dredging environmental aspects; Water quality bioassay; Methodology; Water quality management.
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Bioassessment methodologies for the regulatory testing of freshwater dredged Material. Phase 2. Final report
1990Co-Authors: Greg Busacker, Dennis Anderson, Alfreda B. Gibson, Thomas M. DillonAbstract:This report represents the second Phase of a 3-year (three-Phase) project that the Wisconsin Department of Natural Resources (WDNR) requested from the St. Paul District as planning assistance under Section 22 of the Water Resources Development Act of 1974 (Public Law 93-251). The State of Wisconsin is interested in identifying appropriate bioassessment testing methodologies for the regulatory testing of freshwater sediments scheduled for dredging and open-water disposal. The report includes discussions and recommendations for specific approaches to bioassessment methods in the tiered testing protocol. The methods described in this report have the potential to be the most frequently used testing techniques, and represent the backbone of the tiered testing evaluation for regulatory testing of freshwater sediments.