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Book
On direct and inverse problems related to longitudinal impact of non-uniform elastic rods
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ISBN: 1000129237 3731510871 Year: 2021 Publisher: Karlsruhe KIT Scientific Publishing

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Abstract

The impact of two non-uniform elastic rods is considered and a recursive method was developed that solves the inverse problem: Find the location-dependent impedance function of the impacting rod that generates a prescribed impact force. The developed method delivers exact solutions in closed-form. Moreover, a condition is derived which states if a physically meaningful solution exists. Finally, the underlying 1D model has been validated experimentally.


Book
Coastal Morphology Assessment and Coastal Protection
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Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Sediment, which collects in rivers and seas to secure a large amount of aggregate, reduces the supply of earth and sand to coasts. Dams and breakwaters constructed in various places also impede the transportation of earth and sand. Furthermore, the maintenance dredging of dam lakes and waterways will also disrupt the supply of sediment to coasts if the dredged sediment is not released back into the water system. Due to these development activities, coastal erosion has become a serious problem in many beaches around the world. Moreover, due to the excessive industrial activities of human beings, the exacerbation of natural disasters caused by global warming is becoming a real problem. In addition, because great earthquakes with a magnitude of 9 or more have occurred about three times per 100 years at boundaries of the Pacific Crust Plate and the Nazca Crust Plate since 1700, the possibility of losing many lives and assets in the Pacific coastal areas due to a huge tsunami caused by a great earthquake should not be underestimated. Therefore, research into the prevention and mitigation of coastal erosion and coastal disasters is becoming increasingly important. This Special Issue, “Coastal Morphology Assessment and Coastal Protection”, consists of five peer-reviewed papers, collected to contribute to the technological progress on the prevention of coastal erosion and coastal disaster resulting from large waves and tsunamis.


Book
Coastal Morphology Assessment and Coastal Protection
Author:
Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Sediment, which collects in rivers and seas to secure a large amount of aggregate, reduces the supply of earth and sand to coasts. Dams and breakwaters constructed in various places also impede the transportation of earth and sand. Furthermore, the maintenance dredging of dam lakes and waterways will also disrupt the supply of sediment to coasts if the dredged sediment is not released back into the water system. Due to these development activities, coastal erosion has become a serious problem in many beaches around the world. Moreover, due to the excessive industrial activities of human beings, the exacerbation of natural disasters caused by global warming is becoming a real problem. In addition, because great earthquakes with a magnitude of 9 or more have occurred about three times per 100 years at boundaries of the Pacific Crust Plate and the Nazca Crust Plate since 1700, the possibility of losing many lives and assets in the Pacific coastal areas due to a huge tsunami caused by a great earthquake should not be underestimated. Therefore, research into the prevention and mitigation of coastal erosion and coastal disasters is becoming increasingly important. This Special Issue, “Coastal Morphology Assessment and Coastal Protection”, consists of five peer-reviewed papers, collected to contribute to the technological progress on the prevention of coastal erosion and coastal disaster resulting from large waves and tsunamis.


Book
Coastal Morphology Assessment and Coastal Protection
Author:
Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Sediment, which collects in rivers and seas to secure a large amount of aggregate, reduces the supply of earth and sand to coasts. Dams and breakwaters constructed in various places also impede the transportation of earth and sand. Furthermore, the maintenance dredging of dam lakes and waterways will also disrupt the supply of sediment to coasts if the dredged sediment is not released back into the water system. Due to these development activities, coastal erosion has become a serious problem in many beaches around the world. Moreover, due to the excessive industrial activities of human beings, the exacerbation of natural disasters caused by global warming is becoming a real problem. In addition, because great earthquakes with a magnitude of 9 or more have occurred about three times per 100 years at boundaries of the Pacific Crust Plate and the Nazca Crust Plate since 1700, the possibility of losing many lives and assets in the Pacific coastal areas due to a huge tsunami caused by a great earthquake should not be underestimated. Therefore, research into the prevention and mitigation of coastal erosion and coastal disasters is becoming increasingly important. This Special Issue, “Coastal Morphology Assessment and Coastal Protection”, consists of five peer-reviewed papers, collected to contribute to the technological progress on the prevention of coastal erosion and coastal disaster resulting from large waves and tsunamis.


Book
Inverse Dynamics Problems
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Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

The inverse dynamics problem was developed in order to provide researchers with the state of the art in inverse problems for dynamic and vibrational systems. Contrasted with a forward problem, which solves for the system output in a straightforward manner, an inverse problem searches for the system input through a procedure contaminated with errors and uncertainties. An inverse problem, with a focus on structural dynamics, determines the changes made to the system and estimates the inputs, including forces and moments, to the system, utilizing measurements of structural vibration responses only. With its complex mathematical structure and need for more reliable input estimations, the inverse problem is still a fundamental subject of research among mathematicians and engineering scientists. This book contains 11 articles that touch upon various aspects of inverse dynamic problems.

Keywords

Technology: general issues --- regenerative shock absorbers --- energy harvesting --- active control of automobile suspension systems --- railroad tracks --- track modulus --- computer simulation --- artificial neural networks --- Fiber-reinforced Foamed Urethane (FFU) --- free vibration --- impact hammer excitation technique --- high-rate dynamics --- structural health monitoring --- time-frequency analysis --- synchrosqueezing transform (SST) --- jerk --- acceleration onset --- higher-order derivatives of acceleration --- jounce --- acceleration-dot --- sports surfacing --- sand surface --- dynamic behaviour --- impact tests --- accelerometry --- greyhound racing --- equine racing --- shake table control --- vibration testing --- system identification --- inverse dynamics --- feedback linearization --- servohydraulics --- inverse problems --- quantum graphs --- delta-prime vertex conditions --- Bayesian inference --- uncertainty quantification --- dynamical systems --- inverse problem --- machine learning --- Gaussian process --- polynomial chaos --- impact force identification --- tower structure --- impact localization --- force history --- inverse algorithm --- rotor dynamic --- bearing --- centrifugal pump --- impeller diameter --- Lagrangian equations --- regenerative shock absorbers --- energy harvesting --- active control of automobile suspension systems --- railroad tracks --- track modulus --- computer simulation --- artificial neural networks --- Fiber-reinforced Foamed Urethane (FFU) --- free vibration --- impact hammer excitation technique --- high-rate dynamics --- structural health monitoring --- time-frequency analysis --- synchrosqueezing transform (SST) --- jerk --- acceleration onset --- higher-order derivatives of acceleration --- jounce --- acceleration-dot --- sports surfacing --- sand surface --- dynamic behaviour --- impact tests --- accelerometry --- greyhound racing --- equine racing --- shake table control --- vibration testing --- system identification --- inverse dynamics --- feedback linearization --- servohydraulics --- inverse problems --- quantum graphs --- delta-prime vertex conditions --- Bayesian inference --- uncertainty quantification --- dynamical systems --- inverse problem --- machine learning --- Gaussian process --- polynomial chaos --- impact force identification --- tower structure --- impact localization --- force history --- inverse algorithm --- rotor dynamic --- bearing --- centrifugal pump --- impeller diameter --- Lagrangian equations


Book
Inverse Dynamics Problems
Author:
Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

The inverse dynamics problem was developed in order to provide researchers with the state of the art in inverse problems for dynamic and vibrational systems. Contrasted with a forward problem, which solves for the system output in a straightforward manner, an inverse problem searches for the system input through a procedure contaminated with errors and uncertainties. An inverse problem, with a focus on structural dynamics, determines the changes made to the system and estimates the inputs, including forces and moments, to the system, utilizing measurements of structural vibration responses only. With its complex mathematical structure and need for more reliable input estimations, the inverse problem is still a fundamental subject of research among mathematicians and engineering scientists. This book contains 11 articles that touch upon various aspects of inverse dynamic problems.


Book
Modeling of Soil Erosion and Sediment Transport
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Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

The Special Issue entitled “Modeling of Soil Erosion and Sediment Transport” focuses on the mathematical modeling of soil erosion caused by rainfall and runoff at a basin scale, as well as on the sediment transport in the streams of the basin. In concrete terms, the quantification of these phenomena by means of mathematical modeling and field measurements has been studied. The following mathematical models (software) were used, amongst others: AnnAGNPS, SWAT, SWAT-Twn, TUSLE, WRF-Hydro-Sed, CORINE, LCM-MUSLE, EROSION-3D, HEC-RAS, SRC, WA-ANN. The Special Issue contains 14 articles that can be classified into the following five categories: Category A: “Soil erosion and sediment transport modeling in basins”; Category B: “Inclusion of soil erosion control measures in soil erosion models”; Category C: “Soil erosion and sediment transport modeling in view of reservoir sedimentation”; Category D: “Field measurements of gully erosion”; Category E: “Stream sediment transport modeling”. Most studies presented in the Special Issue were applied to different basins in Europe, America, and Asia, and are the result of the cooperation between universities and/or research centers in different countries and continents, which constitutes an optimistic fact for the international scientific communication.

Keywords

History of engineering & technology --- terrace --- vegetation --- time-area method --- MUSLE --- soil and water loss --- the Loess Plateau --- bed erosion --- catchment area --- filtration --- sediment accumulation --- sediment bed fluidization --- sediment re-suspension --- soil erosion --- rainfall-runoff --- sediment yield --- AnnAGNPS model --- urbanization --- scenario analysis --- Upper Indus Basin (UIB) --- Tarbela Reservoir --- Besham Qila --- sediment modeling --- uncertainty --- wavelet transform analysis-artificial neural network (WA-ANN) --- sediment rating curve (SRC) --- HEC-RAS --- SWAT --- TUSLE --- sediment transport --- model calibration --- mountainous catchment --- tailings pond --- leaked tailings flow --- dam failure --- impact force --- deposition range --- debris blocking dam --- CORINE erosion model --- ponds --- Brenne --- limnology --- land cover change --- infiltration estimation --- black soil --- residue cover --- model validation --- stream sediment transport --- total load --- sediment concentration --- Yang formula --- fuzzy regression --- fuzzy coefficients --- fuzzy logic --- sediment entrainment --- clogging --- colmation --- numerical modeling --- gully erosion --- seasonality --- precipitation --- statistical modeling --- precipitation intensity --- sediment budget --- rainfall event --- EROSION-3D --- small water reservoir --- SWAT modeling --- land management --- soil conservation stone structures --- WRF-Hydro --- CASC2D-SED --- Goodwin Creek Experimental Watershed --- NLDAS-2 --- calibration


Book
Modeling of Soil Erosion and Sediment Transport
Author:
Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

The Special Issue entitled “Modeling of Soil Erosion and Sediment Transport” focuses on the mathematical modeling of soil erosion caused by rainfall and runoff at a basin scale, as well as on the sediment transport in the streams of the basin. In concrete terms, the quantification of these phenomena by means of mathematical modeling and field measurements has been studied. The following mathematical models (software) were used, amongst others: AnnAGNPS, SWAT, SWAT-Twn, TUSLE, WRF-Hydro-Sed, CORINE, LCM-MUSLE, EROSION-3D, HEC-RAS, SRC, WA-ANN. The Special Issue contains 14 articles that can be classified into the following five categories: Category A: “Soil erosion and sediment transport modeling in basins”; Category B: “Inclusion of soil erosion control measures in soil erosion models”; Category C: “Soil erosion and sediment transport modeling in view of reservoir sedimentation”; Category D: “Field measurements of gully erosion”; Category E: “Stream sediment transport modeling”. Most studies presented in the Special Issue were applied to different basins in Europe, America, and Asia, and are the result of the cooperation between universities and/or research centers in different countries and continents, which constitutes an optimistic fact for the international scientific communication.

Keywords

terrace --- vegetation --- time-area method --- MUSLE --- soil and water loss --- the Loess Plateau --- bed erosion --- catchment area --- filtration --- sediment accumulation --- sediment bed fluidization --- sediment re-suspension --- soil erosion --- rainfall-runoff --- sediment yield --- AnnAGNPS model --- urbanization --- scenario analysis --- Upper Indus Basin (UIB) --- Tarbela Reservoir --- Besham Qila --- sediment modeling --- uncertainty --- wavelet transform analysis-artificial neural network (WA-ANN) --- sediment rating curve (SRC) --- HEC-RAS --- SWAT --- TUSLE --- sediment transport --- model calibration --- mountainous catchment --- tailings pond --- leaked tailings flow --- dam failure --- impact force --- deposition range --- debris blocking dam --- CORINE erosion model --- ponds --- Brenne --- limnology --- land cover change --- infiltration estimation --- black soil --- residue cover --- model validation --- stream sediment transport --- total load --- sediment concentration --- Yang formula --- fuzzy regression --- fuzzy coefficients --- fuzzy logic --- sediment entrainment --- clogging --- colmation --- numerical modeling --- gully erosion --- seasonality --- precipitation --- statistical modeling --- precipitation intensity --- sediment budget --- rainfall event --- EROSION-3D --- small water reservoir --- SWAT modeling --- land management --- soil conservation stone structures --- WRF-Hydro --- CASC2D-SED --- Goodwin Creek Experimental Watershed --- NLDAS-2 --- calibration


Book
Inverse Dynamics Problems
Author:
Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

The inverse dynamics problem was developed in order to provide researchers with the state of the art in inverse problems for dynamic and vibrational systems. Contrasted with a forward problem, which solves for the system output in a straightforward manner, an inverse problem searches for the system input through a procedure contaminated with errors and uncertainties. An inverse problem, with a focus on structural dynamics, determines the changes made to the system and estimates the inputs, including forces and moments, to the system, utilizing measurements of structural vibration responses only. With its complex mathematical structure and need for more reliable input estimations, the inverse problem is still a fundamental subject of research among mathematicians and engineering scientists. This book contains 11 articles that touch upon various aspects of inverse dynamic problems.


Book
Modeling of Soil Erosion and Sediment Transport
Author:
Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

Loading...
Export citation

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Bookmark

Abstract

The Special Issue entitled “Modeling of Soil Erosion and Sediment Transport” focuses on the mathematical modeling of soil erosion caused by rainfall and runoff at a basin scale, as well as on the sediment transport in the streams of the basin. In concrete terms, the quantification of these phenomena by means of mathematical modeling and field measurements has been studied. The following mathematical models (software) were used, amongst others: AnnAGNPS, SWAT, SWAT-Twn, TUSLE, WRF-Hydro-Sed, CORINE, LCM-MUSLE, EROSION-3D, HEC-RAS, SRC, WA-ANN. The Special Issue contains 14 articles that can be classified into the following five categories: Category A: “Soil erosion and sediment transport modeling in basins”; Category B: “Inclusion of soil erosion control measures in soil erosion models”; Category C: “Soil erosion and sediment transport modeling in view of reservoir sedimentation”; Category D: “Field measurements of gully erosion”; Category E: “Stream sediment transport modeling”. Most studies presented in the Special Issue were applied to different basins in Europe, America, and Asia, and are the result of the cooperation between universities and/or research centers in different countries and continents, which constitutes an optimistic fact for the international scientific communication.

Keywords

History of engineering & technology --- terrace --- vegetation --- time-area method --- MUSLE --- soil and water loss --- the Loess Plateau --- bed erosion --- catchment area --- filtration --- sediment accumulation --- sediment bed fluidization --- sediment re-suspension --- soil erosion --- rainfall-runoff --- sediment yield --- AnnAGNPS model --- urbanization --- scenario analysis --- Upper Indus Basin (UIB) --- Tarbela Reservoir --- Besham Qila --- sediment modeling --- uncertainty --- wavelet transform analysis-artificial neural network (WA-ANN) --- sediment rating curve (SRC) --- HEC-RAS --- SWAT --- TUSLE --- sediment transport --- model calibration --- mountainous catchment --- tailings pond --- leaked tailings flow --- dam failure --- impact force --- deposition range --- debris blocking dam --- CORINE erosion model --- ponds --- Brenne --- limnology --- land cover change --- infiltration estimation --- black soil --- residue cover --- model validation --- stream sediment transport --- total load --- sediment concentration --- Yang formula --- fuzzy regression --- fuzzy coefficients --- fuzzy logic --- sediment entrainment --- clogging --- colmation --- numerical modeling --- gully erosion --- seasonality --- precipitation --- statistical modeling --- precipitation intensity --- sediment budget --- rainfall event --- EROSION-3D --- small water reservoir --- SWAT modeling --- land management --- soil conservation stone structures --- WRF-Hydro --- CASC2D-SED --- Goodwin Creek Experimental Watershed --- NLDAS-2 --- calibration --- terrace --- vegetation --- time-area method --- MUSLE --- soil and water loss --- the Loess Plateau --- bed erosion --- catchment area --- filtration --- sediment accumulation --- sediment bed fluidization --- sediment re-suspension --- soil erosion --- rainfall-runoff --- sediment yield --- AnnAGNPS model --- urbanization --- scenario analysis --- Upper Indus Basin (UIB) --- Tarbela Reservoir --- Besham Qila --- sediment modeling --- uncertainty --- wavelet transform analysis-artificial neural network (WA-ANN) --- sediment rating curve (SRC) --- HEC-RAS --- SWAT --- TUSLE --- sediment transport --- model calibration --- mountainous catchment --- tailings pond --- leaked tailings flow --- dam failure --- impact force --- deposition range --- debris blocking dam --- CORINE erosion model --- ponds --- Brenne --- limnology --- land cover change --- infiltration estimation --- black soil --- residue cover --- model validation --- stream sediment transport --- total load --- sediment concentration --- Yang formula --- fuzzy regression --- fuzzy coefficients --- fuzzy logic --- sediment entrainment --- clogging --- colmation --- numerical modeling --- gully erosion --- seasonality --- precipitation --- statistical modeling --- precipitation intensity --- sediment budget --- rainfall event --- EROSION-3D --- small water reservoir --- SWAT modeling --- land management --- soil conservation stone structures --- WRF-Hydro --- CASC2D-SED --- Goodwin Creek Experimental Watershed --- NLDAS-2 --- calibration

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