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  • 1
    Online Resource
    Online Resource
    Cambridge :Cambridge University Press,
    Keywords: Coast changes. ; Electronic books.
    Description / Table of Contents: Beaches and tidal inlets are valuable coastal resources. This book discusses their morphologic features and how they behave as one interconnected system and should be managed as such. Illustrated with numerous aerial photographs, this is a valuable reference for graduate students, researchers and professionals working in coastal management.
    Type of Medium: Online Resource
    Pages: 1 online resource (388 pages)
    Edition: 1st ed.
    ISBN: 9781108804257
    DDC: 551.457
    Language: English
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  • 2
    Online Resource
    Online Resource
    Singapore :Springer Singapore Pte. Limited,
    Keywords: Biotechnology. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (242 pages)
    Edition: 1st ed.
    ISBN: 9789811016585
    DDC: 681.75
    Language: English
    Note: Intro -- Contents -- Chapter 1: Introduction -- 1.1 Introduction -- 1.2 Micro/NanoCell- and Molecule-Based Biosensors -- 1.3 Characteristics of Micro/Nano Cell- and Molecule-Based Biosensors -- 1.4 Types of Micro/NanoCell and Molecule-Based Biosensors -- 1.5 Summary -- References -- Chapter 2: Micro/NanoBiosensors for Living Cell and Molecule Analysis -- 2.1 Introduction -- 2.2 Traditional Cell- and Molecular-Based Biosensors -- 2.2.1 Microelectrode Array -- 2.2.2 Impedance Biosensor -- 2.2.3 Field-Effect Transistor -- 2.2.4 Light-Addressable Potentiometric Sensor -- 2.3 Novel Micro/Nano cell- and Molecular-Based Biosensors -- 2.3.1 Nanoscale FET -- 2.3.1.1 Fabrication of Nanoscale Device -- 2.3.1.2 Characterization and Application of Nanoscale FET Devices -- 2.3.2 Nanopillar and Nanotube Electrode Array -- 2.3.2.1 Fabrication of Nanoelectrode Array -- 2.3.2.2 Characterization and Application of Nanoelectrode Array -- 2.3.3 Nanomaterial Modified Biosensor -- 2.3.3.1 Fabrication of Nanotube-Modified FET -- 2.3.3.2 Characterization and Application of Nanotube-Modified FET -- 2.4 Summary -- References -- Chapter 3: Label-Free DNA Biosensors with Field-Effect Devices -- 3.1 Introduction -- 3.2 Principle of FED-Based DNA Biosensors -- 3.2.1 Mechanisms of DNA Hybridization and Signal Generation -- 3.2.2 Label-Free Detection of DNA Hybridization with FEDs -- 3.3 Design and Fabrication of FEDs for DNA Sensing -- 3.3.1 Coupling of DNA Molecules with FEDs -- 3.3.2 Fabrication of FEDs for DNA Sensing -- 3.4 Application of FED-Based DNA Biosensors -- 3.4.1 Label-Free DNA Assays -- 3.4.2 Label-Free Detection of SNPs -- 3.5 Summary -- References -- Chapter 4: Micro/Nano Cell-Substrate Impedance Biosensors -- 4.1 Introduction -- 4.2 Theory of Cell Impedance Biosensors -- 4.2.1 ECIS Cell Impedance Model -- 4.2.2 Detection Principle of Cell Growth and Pulse. , 4.2.3 Cell Index -- 4.3 ECIS-Based Biosensors and Measurement -- 4.3.1 Chip Fabrication -- 4.3.2 Surface Modification -- 4.3.3 Detection System -- 4.4 Application in Biomedicine and Food Analysis -- 4.4.1 Drug Screening -- 4.4.2 Environment Monitoring -- 4.4.3 Food Analysis -- 4.4.4 Cancer Research -- 4.4.5 Other Applications -- 4.5 Summary -- References -- Chapter 5: Micro/Nano Cell Potential Biosensors -- 5.1 Introduction -- 5.2 Theory of Cell Potential Biosensors -- 5.2.1 H-H Model of Cardiomyocyte Action Potential -- 5.2.2 Cell Potential Sensor Model -- 5.2.3 Detection Principle of EFP -- 5.3 MEA-Based Biosensors and Measurement -- 5.3.1 MEA Chip Design and Fabrication -- 5.3.2 MEA Chip Surface Modification -- 5.3.2.1 Surface Hydrophilicity Improvement Method -- 5.3.2.2 Protein Modification Method -- 5.3.2.3 Special Structure Manufacturing Method -- 5.3.3 Detection System and EFP Measurement -- 5.4 Application in Biomedicine and Food Analysis -- 5.4.1 Cardiac Pathology Research -- 5.4.2 Cardiac Safety Evaluation -- 5.4.3 Food Analysis -- 5.4.4 Other Applications -- 5.5 Summary -- References -- Chapter 6: Micro/Nano Neuronal Network Cell Biosensors -- 6.1 Introduction -- 6.2 The Development of Neural Networks -- 6.2.1 The Culture of Neuronal Networks -- 6.2.2 The Bioengineering of Neuronal Networks -- 6.3 Neural Network Cell Biosensors -- 6.3.1 The Field-Effect Transistor -- 6.3.2 Graphene Solution-Gated Field-Effect Transistors -- 6.3.3 Nanowire Field-Effect Transistors -- 6.4 Application in Neuroscience and Biomedicine -- 6.4.1 The Research Platform of the Neuronal Signal -- 6.4.2 Drug and Toxicity Analysis -- 6.4.3 Detection of Neurotransmitters -- 6.5 Summary and Outlooks -- References -- Chapter 7: Micro/NanoMaterial-Based Biosensors -- 7.1 Introduction -- 7.2 Structures and Properties of Nanomaterial -- 7.2.1 Basic Properties of Nanomaterial. , 7.2.2 Metal Nanoparticles -- 7.2.2.1 The Properties of Precious Metal Nanomaterial -- Optical Properties -- Surface Plasmon Resonance Properties -- Thermal Properties -- Catalytic Properties -- 7.2.3 Carbon Nanomaterial -- 7.2.3.1 Fullerene -- 7.2.3.2 Carbon Nanotubes -- Mechanical Property -- Conductive Property -- Heat-Transfer Properties -- 7.2.3.3 Graphene -- Basic Electronic Properties -- Electron Transport Properties -- Nonelectronic Properties -- 7.2.4 Semiconductor Nanomaterial -- 7.2.5 Magnetic Nanomaterial -- 7.3 Recent Developments in the Use of Micro/Nano Material in Biosensors -- 7.3.1 Electrochemical Biosensors -- 7.3.1.1 Accelerating Electron Transfer -- 7.3.1.2 Acting as Catalyst -- 7.3.1.3 The Immobilization of Biomolecules -- 7.3.1.4 Biomolecule Labeling -- 7.3.1.5 Acting as Reactant -- 7.3.2 Optical Biosensor -- 7.3.2.1 The Application of Metal Nanoparticles in Optical Biosensor -- 7.3.2.2 The Application of Semiconductor Nanoparticles in Optical Biosensor -- 7.3.2.3 The Application of Carbon Nanomaterial in Optical Biosensor -- 7.3.3 Piezoelectric Sensor and FET Biosensor -- 7.3.3.1 The Application of Nanomaterial in Piezoelectric Sensor -- 7.3.3.2 The Application of Carbon Nanomaterial in Field-Effect Transistor-Based Biosensors -- 7.3.3.3 The Application of Silicon Nanowire in Field-Effect Transistor-Based Biosensors -- 7.4 Summary and Outlooks -- References -- Chapter 8: Micro/Nano Electrochemical Sensors for Ion Sensing -- 8.1 Introduction -- 8.2 Theory of Electrochemical Sensors for Ion Sensing -- 8.2.1 Potentiometric Sensors -- 8.2.2 Voltammetric Sensors -- 8.2.3 Characterizations of Micro/Nano sensors -- 8.2.3.1 Radius Diffusion -- 8.2.3.2 Large Mass Transfer Rate and Current Density -- 8.2.3.3 Low Time Constant and IR Voltage Drop -- 8.2.3.4 Low Charging Current, High Signal-to-Noise Ratio. , 8.2.3.5 Microelectrode Array Characteristics -- 8.3 Electrochemical Ion Sensors and Measurement -- 8.3.1 Fabrication of the Hybrid Sensor -- 8.3.2 Characterization of MEA -- 8.3.3 Characterization of LAPS -- 8.4 Application in the Environment and Food Analysis -- 8.4.1 Heavy-Metal Detection -- 8.4.1.1 Chemically and Biochemically Modified Electrodes -- 8.4.1.2 Metal Nanoparticle-Modified Electrodes -- 8.4.1.3 Nanomaterials Combined with Synthetic Receptor-Modified Electrodes -- 8.4.1.4 Nanobiomodified Electrodes -- 8.4.2 Mycotoxin Determination -- 8.4.2.1 Biosensors as Diagnostic Tools -- 8.4.2.2 Micro/Nano electrode Arrays -- 8.4.3 Application of the LAPS -- 8.4.3.1 Typical LAPS -- 8.4.3.2 Microphysiometers Based on the LAPS -- 8.4.3.3 Cell-Semiconductor Hybrid for Electrophysiological Detection -- 8.5 Summary -- References -- Chapter 9: Future Trends of Micro/Nano Cell and Molecule-Based Biosensors -- 9.1 Introduction -- 9.2 Intelligent Micro/Nano Cell- and Molecule-Based Biosensors and Biosystems -- 9.2.1 Intelligent Multiparameter Biosensors -- 9.2.2 Intelligent High-Throughput Biosensor Array -- 9.2.3 Devices Through Integrating MEMS/Micro/Nano Technologies and Live Cells for Cell Behavior Measurements and Manipulation -- 9.3 Application Perspective in Biomimetic Devices, Health Care, and Rehabilitation -- 9.3.1 Nano-micropatterned Cell Cultures -- 9.3.2 Nanoporous-Based Biosensor -- 9.3.3 Nanoprobes to Intracellular Nano-sensors -- 9.3.4 Nano- and Micro-patterned Surface for Cell Behavior Manipulation -- 9.4 Summary -- References -- Index.
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  • 3
    Online Resource
    Online Resource
    Dordrecht :Springer Netherlands,
    Keywords: Biotechnology. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (330 pages)
    Edition: 1st ed.
    ISBN: 9789401773331
    DDC: 612.86
    Language: English
    Note: Intro -- Preface -- Contents -- 1 Introduction -- 1.1 What Are Smell and Taste Sensors -- 1.2 Characteristics of Smell and Taste Sensors -- 1.3 Types of Smell and Taste Sensors -- 1.3.1 Electronic Nose and Electronic Tongue -- 1.3.2 Olfactory and Taste Cell-Based Biosensors -- 1.3.3 Olfactory and Taste Epithelium-Based Biosensors -- 1.3.4 Insect Antenna and Binding Proteins Smell Sensors -- 1.3.5 Smell and Taste Receptor-Based Biosensors -- 1.3.6 Biomimetic Membrane-Based Taste Biosensors -- 1.3.7 In Vivo Smell and Taste Biosensing System -- 1.4 Application of Smell and Taste Sensors -- 1.4.1 Detection of Chemical Compounds -- 1.4.2 Research of Signal Transduction Mechanisms -- 1.4.3 Breath Diagnosis for Cancer Diseases -- 1.5 Summary -- References -- 2 Electronic Nose and Electronic Tongue -- 2.1 Introduction -- 2.2 Traditional Electronic Nose -- 2.2.1 Principle and Structure -- 2.2.2 Sensing System -- 2.2.2.1 MOS Sensors -- 2.2.2.2 CP Sensors -- 2.2.2.3 Optical Sensors -- 2.2.2.4 Piezoelectric Sensors -- 2.2.3 Pattern Recognition System -- 2.2.3.1 Dimension Reduction -- 2.2.3.2 Classification and Prediction -- 2.3 Traditional Electronic Tongue -- 2.3.1 Potentiometric Sensors -- 2.3.2 Voltammetric Sensors -- 2.4 Application of Electronic Nose -- 2.4.1 Food Evaluation -- 2.4.2 Public Security -- 2.4.3 Medical Applications -- 2.5 Application of Electronic Tongue -- 2.5.1 Food Evaluation and Discrimination -- 2.5.2 Water Environment Monitoring -- 2.5.3 Process Monitoring -- 2.6 Summary -- References -- 3 Olfactory Cell-Based Smell Sensors -- 3.1 Introduction -- 3.2 Theories of Olfactory Cell-Based Smell Sensors -- 3.2.1 Biology of Olfactory Receptor Cells -- 3.2.2 Electrophysiology of Olfactory Cells -- 3.2.3 Theories of Cell Electrophysiological Recording -- 3.2.4 Modeling of Cell Electrophysiological Recording. , 3.3 Design of Olfactory Cell-Based Smell Sensors -- 3.3.1 Culture Olfactory Receptor Cells on the Sensors -- 3.3.2 Bioengineered Olfactory Cells with Specific Receptors -- 3.3.3 Fabrication of Sensors and the Detecting Systems -- 3.4 Application of Olfactory Cell-Based Smell Sensors -- 3.4.1 Extracellular Sensing of Olfactory Cells to Odorants -- 3.4.2 Cell-Based High-Throughput and Automatic Odorant Screening -- 3.4.3 Applications of Olfactory Cell-Based Smell Sensors -- 3.5 Summary -- References -- 4 Smell Sensors Based on Olfactory Epithelium -- 4.1 Introduction -- 4.2 Theories of Olfactory Epithelium-Based Smell Sensors -- 4.2.1 Structure and Sensing Mechanism of Olfactory Epithelium -- 4.2.2 Epithelium Electrophysiological Recording on Microelectrodes -- 4.2.3 Modeling of Epithelium Electrophysiological Recording -- 4.3 Design of the Olfactory Epithelium-Based Smell Sensors -- 4.3.1 Preparation of Microelectrode Arrays -- 4.3.2 Isolation and Fixation of Olfactory Epitheliums -- 4.3.3 Sensor System and Data Processing -- 4.4 Application of Olfactory Epithelium-Based Smell Sensors -- 4.4.1 Recording of Electrophysiological Signals -- 4.4.2 Time and Frequency Analysis of Multi-channel Signals -- 4.4.3 Spatio-Temporal Analysis Discrimination -- 4.4.4 Development and Applications of Olfactory Epithelium-Based Smell Sensors -- 4.5 Summary -- References -- 5 Smell Sensors with Insect Antenna -- 5.1 Introduction -- 5.2 Fundamental of Smell Sensors with Insect Antenna -- 5.2.1 Structure and Electrophysiology of Insect Antennae -- 5.2.2 Electrophysiological Recording from Insect Antenna with Micro Devices -- 5.2.3 Modeling of Insect Antenna Electrophysiological Recording -- 5.3 Design of Insect Antenna-Based Smell Sensors -- 5.3.1 Isolation and Fixation of Insect Antennae -- 5.3.2 Preparation of Micro Devices -- 5.3.3 Sensor System and Data Processing. , 5.4 Application of Smell Sensors with Insect Antenna -- 5.4.1 Recording of Electrophysiological Signals -- 5.4.2 Plant Protection -- 5.4.3 Smoke Detection -- 5.5 Summary -- References -- 6 Smell Sensors Based on Olfactory Receptor -- 6.1 Introduction -- 6.2 Theories of Olfactory Receptor-Based Smell Sensors -- 6.2.1 Biological Structure and Function of Olfactory Receptors -- 6.2.2 Production Techniques of Olfactory Receptors -- 6.2.3 Natural Structure Maintenance of Olfactory Receptors -- 6.3 Design of Olfactory Receptor-Based Smell Sensors -- 6.3.1 Secondary Transducers for Olfactory Receptor-Based Smell Sensors -- 6.3.2 Coupling Techniques of Olfactory Receptors with Transducers -- 6.3.3 Sensor System and Data Processing -- 6.4 Applications of Olfactory Receptor-Based Smell Sensors -- 6.4.1 The Odorant Detection in Food Industry -- 6.4.2 Research of Olfactory Receptors and Ligands Interactions -- 6.4.3 Toxic and Explosive Gases Detection in Public Safety -- 6.5 Summary -- References -- 7 Smell Sensors Based on Odorant Binding Proteins -- 7.1 Introduction -- 7.2 Theories of Odorant Binding Proteins-Based Smell Sensors -- 7.2.1 Molecular Features of Odorant Binding Proteins -- 7.2.2 Electrical Properties of the Odorant Binding Proteins -- 7.2.3 Modeling of the Odorant Binding Proteins to Ligands -- 7.3 Design of Odorant Binding Proteins-Based Smell Sensors -- 7.3.1 Preparation of Microelectrodes -- 7.3.2 Production and Fixation of Odorant Binding Proteins -- 7.3.3 Sensor System and Data Processing -- 7.4 Applications of Odorant Binding Proteins-Based Biosensors -- 7.4.1 Specific and Sensitive Odorants Detection -- 7.4.2 Odorant Detection and Analysis -- 7.4.3 Application of the Odorant Binding Proteins-Based Smell Sensors -- 7.5 Summary -- References -- 8 DNA-Decorated Devices as Smell Sensors -- 8.1 Introduction. , 8.2 Fundamental of DNA-Decorated Devices for Chemical Sensing -- 8.2.1 Molecular Features of Odorant Sensitive DNA -- 8.2.2 DNA-Decorated Devices for Chemical Sensing -- 8.2.3 DNA-Fluorescent Dye Conjugates for Chemical Sensing -- 8.3 Design of DNA-Decorated Devices as Smell Sensors -- 8.3.1 Screening of Odorant Sensitive DNA -- 8.3.2 DNA-Decorated Field-Effect Devices as Smell Sensors -- 8.3.3 Chemical Sensing System and Data Processing -- 8.4 Applications of Smell Sensors Based on DNA-Decorated Devices -- 8.4.1 Specific and Sensitive Odorant Detection -- 8.4.2 Odorant Sensitive DNA Nanostructure -- 8.5 Summary -- References -- 9 In Vivo Bioelectronic Nose -- 9.1 Introduction -- 9.2 Theories of In Vivo Bioelectronic Nose -- 9.2.1 Smell Detecting Using Whole Animals -- 9.2.2 Signal Transduction in Mammalian Olfactory System -- 9.2.3 Massive Parallel In Vivo Recording of Olfactory System Activity -- 9.3 Design of the In Vivo Bioelectronic Nose -- 9.3.1 Preparation of Microelectrode -- 9.3.2 Animal Training and Surgery Protocol -- 9.3.3 In Vivo Bioelectronic Nose -- 9.4 Realization of the In Vivo Bioelectronic Nose -- 9.4.1 Recording of Electrophysiological Signals -- 9.4.2 Efficacy Analysis of In Vivo Bioelectronic Nose -- 9.4.3 Pattern Recognition for Odor Detection and Discrimination -- 9.4.4 Smell Detection and Discrimination of In Vivo Bioelectronic Nose -- 9.4.5 Application of the In Vivo Bioelectronic Nose -- 9.5 Summary -- References -- 10 Taste Sensors with Gustatory Cells -- 10.1 Introduction -- 10.2 Fundamental of Gustatory Cell-Based Taste Sensors -- 10.2.1 Gustatory Cells for Chemical Sensing -- 10.2.2 Transducers for Extracellular Recording of Gustatory Cells -- 10.2.3 Modeling of the Gustatory Cell Electrophysiological Recording -- 10.3 Design of the Gustatory Cell-Based Biosensors. , 10.3.1 Gustatory Cell Preparation and Characterization -- 10.3.2 Sensor Design and Fabrication -- 10.3.3 Measurement Setup and Data Processing -- 10.4 Application of Gustatory Cell-Based Biosensors -- 10.4.1 Research on Taste Signal Transduction Mechanisms -- 10.4.2 Acid Detection -- 10.4.3 Sweet and Bitter Detection -- 10.4.4 Taste Neurotransmitter Detection -- 10.5 Summary -- References -- 11 Gustatoty Epithelium-Based Taste Sensors -- 11.1 Introduction -- 11.2 Theories of Gustatory Epithelium-Based Biosensors -- 11.2.1 Structure and Electrophysiology of Gustatory Epithelium -- 11.2.2 3D Tissue Electrophysiological Recording -- 11.2.3 Electrophysiological Recording on Microelectrode Arrays -- 11.3 Design of Gustatory Epithelium-Based Biosensors -- 11.3.1 Microelectrode Array Preparation -- 11.3.2 Isolation and Fixation of Gustatory Epithelium -- 11.3.3 Sensor System and Data Processing -- 11.4 Application of Gustatory Epithelium-Based Biosensors -- 11.4.1 Recording of Taste Electrophysiological Signals -- 11.4.2 Analysis of Multichannel Taste Signals -- 11.4.3 Taste Detection and Analysis -- 11.4.4 The Gustatory Epithelium-Based Biosensors for Taste Discrimination -- 11.5 Summary -- References -- 12 Gustatory Receptor-Based Taste Sensors -- 12.1 Introduction -- 12.2 Theories of Gustatory Receptor-Based Taste Sensors -- 12.2.1 Biological Structure and Function of Gustatory Receptor -- 12.2.1.1 G-Protein-Coupled Receptors-Sweet, Umami and Bitter Receptors -- 12.2.1.2 Ion Channel Receptors−Salt and Sour Tastes -- 12.2.2 Production Techniques of Gustatory Receptors -- 12.2.3 Natural Structure Maintenance of Gustatory ReceptorS -- 12.3 Design of Gustatory Receptor-Based Taste Sensors -- 12.3.1 Secondary Transducer for Gustatory Receptor-Based Taste Sensors -- 12.3.2 Coupling Techniques of Gustatory ReceptorS -- 12.3.3 Sensor System and Data Processing. , 12.3.3.1 QCM for Gustatory Receptor-Based Receptor.
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  • 4
    Online Resource
    Online Resource
    Singapore :Springer,
    Keywords: Plant genetics-Technique. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (245 pages)
    Edition: 1st ed.
    ISBN: 9789811685040
    DDC: 572.86
    Language: English
    Note: Intro -- Preface -- Contents -- 1 Development and Vision of CRISPR-Based Technology -- References -- 2 Gene Editing Through CRISPR-Based Technology -- 2.1 CRISPR and The Bacterial Immunity -- 2.2 Gene Editing and Beyond Editing -- 2.3 Potential Risks -- References -- 3 Extension and Improvement of CRISPR-Based Technology -- 3.1 Engineering and Application of Cas Nuclease -- 3.2 Base Editing and Prime Editing System -- 3.3 Optimization of Guide RNA Design -- References -- 4 Application of CRISPR-Based Technology in Medical Research and Disease Treatment -- 4.1 CRISPR in Biomedical Research -- 4.2 CRISPR Provides a Potential Disease Diagnosis and Treatment Strategy -- References -- 5 Application of CRISPR-Based Technology in Plant Gene Editing and Agricultural Engineering -- 5.1 CRISPR-Based Gene Editing in Plants -- 5.2 Application of CRISPR-Based Technology in Crop Breeding -- References -- 6 CRISPR Guides -- References.
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  • 5
    Online Resource
    Online Resource
    Singapore : Springer Singapore | Singapore : Imprint: Springer
    Keywords: Genetics. ; Biotechnology. ; Plant genetics. ; Agricultural genome mapping.
    Description / Table of Contents: Development and vision of CRISPR-based technology -- Gene editing through CRISPR -- Extension and improvement of CRISPR-based technology -- Application of CRISPR-based technology in medical research and disease treatment -- Application of CRISPR-based technology in plant gene editing and agricultural engineering -- CRISPR guides.
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource(VII, 240 p. 2 illus., 1 illus. in color.)
    Edition: 1st ed. 2022.
    ISBN: 9789811685040
    Series Statement: Springer eBook Collection
    Language: English
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  • 6
    Publication Date: 2021-05-19
    Description: Through the Pearl River Estuary Wan Qing-sha W2 core AMS 14C dating of sediments, combining with paleomagnetic test, pollen analysis, and comprehensive comparison with other relevant records, the regional framework of Holocene age was established. Using the combined feature grain size and magnetic susceptibility proxies for the environment, climate change information in the area since about 6 000 cal yr BP was obtained. The result showed the area since the middle Holocene had experienced three stages climate changes of warm and dry - cool and wet temperature and humidity. South area of China in the late Holocene climate (especially rainfall) had important changes, corresponding to the Northern Hemisphere solar radiation reducing, air temperature decreasing, Asian monsoon weakening, and it had close ties with activities to strengthen El Nino - Southern Oscillation events.
    Description: Published
    Keywords: Grain size ; Magnetic susceptibility ; Holocene ; Paleoclimate ; Pearl River estuary
    Repository Name: AquaDocs
    Type: Journal Contribution , Not Known
    Format: pp.70-82
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  • 7
    Publication Date: 2021-05-19
    Description: Through the Pearl River Estuary Wan Qing-sha W2 core AMS 14C dating of sediments, combining with paleomagnetic test, pollen analysis, and comprehensive comparison with other relevant records, the regional framework of Holocene age was established. Using the combined feature grain size and magnetic susceptibility proxies for the environment, climate change information in the area since about 6 000 cal yr BP was obtained. The result showed the area since the middle Holocene had experienced three stages climate changes of warm and dry - cool and wet temperature and humidity. South area of China in the late Holocene climate (especially rainfall) had important changes, corresponding to the Northern Hemisphere solar radiation reducing, air temperature decreasing, Asian monsoon weakening, and it had close ties with activities to strengthen El Nino - Southern Oscillation events.
    Description: Published
    Keywords: Grain size ; Magnetic susceptibility ; Holocene ; Palaeoclimate
    Repository Name: AquaDocs
    Type: Journal Contribution , Non-Refereed , Article
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  • 8
    Publication Date: 2022-05-26
    Description: © The Author(s), 2016. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Biogeosciences 13 (2016): 2011-2028, doi:10.5194/bg-13-2011-2016.
    Description: As three-dimensional (3-D) aquatic ecosystem models are used more frequently for operational water quality forecasts and ecological management decisions, it is important to understand the relative strengths and limitations of existing 3-D models of varying spatial resolution and biogeochemical complexity. To this end, 2-year simulations of the Chesapeake Bay from eight hydrodynamic-oxygen models have been statistically compared to each other and to historical monitoring data. Results show that although models have difficulty resolving the variables typically thought to be the main drivers of dissolved oxygen variability (stratification, nutrients, and chlorophyll), all eight models have significant skill in reproducing the mean and seasonal variability of dissolved oxygen. In addition, models with constant net respiration rates independent of nutrient supply and temperature reproduced observed dissolved oxygen concentrations about as well as much more complex, nutrient-dependent biogeochemical models. This finding has significant ramifications for short-term hypoxia forecasts in the Chesapeake Bay, which may be possible with very simple oxygen parameterizations, in contrast to the more complex full biogeochemical models required for scenario-based forecasting. However, models have difficulty simulating correct density and oxygen mixed layer depths, which are important ecologically in terms of habitat compression. Observations indicate a much stronger correlation between the depths of the top of the pycnocline and oxycline than between their maximum vertical gradients, highlighting the importance of the mixing depth in defining the region of aerobic habitat in the Chesapeake Bay when low-oxygen bottom waters are present. Improvement in hypoxia simulations will thus depend more on the ability of models to reproduce the correct mean and variability of the depth of the physically driven surface mixed layer than the precise magnitude of the vertical density gradient.
    Description: This work was supported by the NOAA IOOS program as part of the Coastal Ocean Modeling Testbed.
    Repository Name: Woods Hole Open Access Server
    Type: Article
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  • 9
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 94 (1991), S. 7231-7236 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Geometries and electronic states of the cesium suboxide cluster Cs11O3 are investigated by means of ab initio Hartree–Fock calculations. Relativistic effective core potentials are employed to represent core electrons in the atoms while Gaussian-type orbital basis sets are used to describe the valence electrons. Interatomic distances are optimized for the ground electronic state. The work function of Cs11O3 is calculated as 0.65 eV, in excellent agreement with an experimentally determined value of 0.7 eV for bulk cesium suboxide. Mulliken populations of negatively charged and neutral Cs11O3 clusters are calculated and indicate that upon ionization the emitted electron exits a molecular orbital encompassing the outermost cesium layer of the cluster.
    Type of Medium: Electronic Resource
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