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  • MDPI Publishing  (15)
  • Nature Publishing Group (NPG)  (12)
  • Singapore :Springer,  (1)
  • 2020-2024  (1)
  • 2015-2019  (27)
  • 1
    Online-Ressource
    Online-Ressource
    Paths to Clean Water under Rapid Changing Environment in China. (2022)
    Singapore :Springer,
    Details
    Schlagwort(e): Water-Pollution. ; Electronic books.
    Materialart: Online-Ressource
    Seiten: 1 online resource (104 pages)
    Ausgabe: 1st ed.
    ISBN: 9789811900914
    Serie: SpringerBriefs in Water Science and Technology Series
    URL: https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=7054813
    DDC: 363.73940951
    Sprache: Englisch
    Anmerkung: Intro -- Introduction -- Contents -- 1 Current Situation of Water Pollution in China -- 1.1 Overview of Water Resources in China -- 1.1.1 Lakes (Reservoirs) -- 1.1.2 Rivers -- 1.1.3 Groundwater -- 1.1.4 Marine Water -- 1.2 Overview of Water Pollution in China -- 1.2.1 Lakes (Reservoirs) -- 1.2.2 Rivers -- 1.2.3 Groundwater -- 1.2.4 Marine Water -- References -- 2 Challenges and Opportunities to Treat Water Pollution -- 2.1 Eutrophication -- 2.1.1 The Current Situation of Chinese Lakes and Reservoirs -- 2.1.2 The Status and Harm of Eutrophication of Lakes and Reservoirs in China -- 2.1.3 Pollutant Source of Lakes and Reservoirs -- 2.1.4 Treatment Technologies and Actual Cases -- 2.2 The Current Situation About the Black-Odorous Water Bodies in China -- 2.3 Groundwater Pollution -- 2.3.1 Pollutants in Groundwater -- 2.3.2 Remediation of Polluted Groundwater -- 2.4 Marine Pollution -- 2.4.1 Inorganic Pollutant -- 2.4.2 Organic Pollutant -- 2.4.3 Radioactive Pollutant -- 2.5 Challenges and Opportunities for China's Water Policy to Deal with Water Pollution -- 2.5.1 Introduction of Water Policies, Laws and Regulations in China Related to Water Pollution Control -- 2.5.2 Challenges and Opportunities for China's Water Policy to Water Pollution Control -- References -- 3 Facing Water Pollution Under Rapid Changing Environment: China's Experiences -- 3.1 Source Control and Pollution Interception -- 3.1.1 Point Source Control -- 3.1.2 Non-Point Source Control -- 3.2 Internal Nutrient of Sediment -- 3.2.1 Internal Nutrient Release of Sediment -- 3.2.2 Sediment Remediation Technologies -- 3.3 Ecological Restoration -- 3.3.1 Physical Methods -- 3.3.2 Chemical Methods -- 3.3.3 Biological Methods -- 3.3.4 Restoration by Aquatic Animals -- 3.3.5 Phytoremediation -- 3.3.6 Cases of Applying Ecological Restoration Technology -- 3.4 Water Transfer. , 3.4.1 Importance of Water Transfer Within China -- 3.4.2 Case Study -- 3.5 Policy -- 3.5.1 China's Experiences on Water Policy to Deal with Water Pollution -- 3.5.2 Action Plan for Prevention and Treatment of Water Pollution -- 3.5.3 The Most Stringent Water Resources Management System - Three Redlines -- 3.5.4 Protection of the Yangtze River -- 3.5.5 Green Tax -- References.
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  • 2
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    Helicobacter pylori -induced IL-33 modulates mast cell responses, benefits bacterial growth, and contributes to gastritis (2018)
    Nature Publishing Group (NPG)
    Details
    Publikationsdatum: 2018-04-26
    Beschreibung: Helicobacter pylori -induced IL-33 modulates mast cell responses, benefits bacterial growth, and contributes to gastritis 〈i〉Helicobacter pylori〈/i〉-induced IL-33 modulates mast cell responses, benefits bacterial growth, and contributes to gastritis, Published online: 25 April 2018; doi:10.1038/s41419-018-0493-1 Helicobacter pylori -induced IL-33 modulates mast cell responses, benefits bacterial growth, and contributes to gastritis
    Digitale ISSN: 2041-4889
    Thema: Biologie , Medizin
    Publiziert von Nature Publishing Group (NPG)
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    PAPER CURRENT
  • 3
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    Energies, Vol. 11, Pages 1743: A Dual-Voltage-Vector Model-Free Predictive Current Controller for Synchronous Reluctance Motor Drive Systems (2018)
    MDPI Publishing
    In: Energies
    Details
    Publikationsdatum: 2018-07-04
    Beschreibung: Energies, Vol. 11, Pages 1743: A Dual-Voltage-Vector Model-Free Predictive Current Controller for Synchronous Reluctance Motor Drive Systems Energies doi: 10.3390/en11071743 Authors: Cheng-Kai Lin Jen-te Yu Hao-Qun Huang Jyun-Ting Wang Hsing-Cheng Yu Yen-Shin Lai For current control in power conversion and motor drive systems, there exist three classic methods in the literature and they are the hysteresis current control (HCC), the sine pulse-width modulation (SPWM), and the space vector pulse width modulation (SVPWM). HCC is easy to implement, but has relatively large current harmonic distortion as the disadvantage. On the other hand, the SPWM and SVPWM use modulation technique, commonly together with at least one proportional-integral (PI) regulator to reduce load current ripples, and hence demanding more computation time. This paper aims to improve the performance of a recently proposed new current control method—the single-voltage-vector model predictive current control (SVV-MPCC), for synchronous reluctance motor (SynRMs) drives. To that end, a dual-voltage-vector model-free predictive current control (DVV-MFPCC) for SynRMs is proposed. Unlike the SVV-MPCC that applies only a single voltage vector per sampling period, the proposed DVV-MFPCC is capable of providing two successive segmentary current predictions in the next sampling period through all possible combinations from any two candidate switching states increasing the number of applicable switching modes from seven to nineteen and reducing the prediction error effectively. Moreover, the new control does not utilize any parameters of the SynRM nor its mathematical model. The performance is effectively enhanced compared to that of SVV-MPCC. The working principle of the DVV-MFPCC will be detailed in this paper. Finally, the SVV-MPCC, the single-voltage-vector model-free predictive current control (SVV-MFPCC), the dual-voltage-vector model predictive current control (DVV-MPCC), and the DVV-MFPCC are realized to control the stator currents of SynRM through a 32-bit microcontroller TMS320F28377S. Experimental results are provided to validate the new method and verify that the DVV-MFPCC performs better than do the SVV-MPCC, the SVV-MFPCC, and the DVV-MPCC.
    Digitale ISSN: 1996-1073
    Thema: Energietechnik
    Publiziert von MDPI Publishing
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  • 4
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    IJERPH, Vol. 12, Pages 4942-4966: Ninety Day Toxicity and Toxicokinetics of Fluorochloridone after Oral Administration in Rats (2015)
    MDPI Publishing
    Details
    Publikationsdatum: 2015-05-07
    Beschreibung: The ninety day toxicity and toxicokinetics of fluorochloridone (FLC) were accessed in Wistar rats. Animals were gavaged with FLC at doses of 31.25 mg/kg, 125 mg/kg and 500 mg/kg for ninety days, followed by thirty days for recovery. On the 1st, 60th, 75th and 90th days of the dosing phase, plasma of ten animals of all groups treated with FLC was collected for toxicokinetic analysis of FLC by an UPLC-MS/MS method. Numerous changes in body weight, hematology, serum chemistry, and organ weight ratios were observed by the 45th and 90th dosing day. Most changes in groups treated with FLC were absent on the last recovery day. Testis and epididymis lesions were consistently seen in histopathological observations on the 45th, 90th dosing day and the last recovery day. Repeated administration of FLC increased the level of testosterone in serum in male rats on the 90th dosing day. FLC plasma concentrations could be detected in all animal drug-treated groups during the dosing phase, and a dose proportional relationship was seen between FLC dose and AUC or Cmax. This study will support future studies on the mechanism of FLC-induced toxicity.
    Print ISSN: 1661-7827
    Digitale ISSN: 1660-4601
    Thema: Energietechnik , Medizin
    Publiziert von MDPI Publishing
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  • 5
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    An on-chip electrical transport spectroscopy approach for in situ monitoring electrochemical interfaces (2015)
    Nature Publishing Group (NPG)
    Details
    Publikationsdatum: 2015-08-08
    Beschreibung: Article In situ probing electrochemical interfaces is important for the development of improved electrocatalysts. Here, the authors present an on-chip electrical transport spectroscopy approach, which enables in situ monitoring the dynamic electrochemical interface characteristics. Nature Communications doi: 10.1038/ncomms8867 Authors: Mengning Ding, Qiyuan He, Gongming Wang, Hung-Chieh Cheng, Yu Huang, Xiangfeng Duan
    Digitale ISSN: 2041-1723
    Thema: Biologie , Chemie und Pharmazie , Allgemeine Naturwissenschaft , Physik
    Publiziert von Nature Publishing Group (NPG)
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  • 6
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    Water, Vol. 9, Pages 954: Transient Modeling of Flow in Unsaturated Soils Using a Novel Collocation Meshless Method (2017)
    MDPI Publishing
    In: Water
    Details
    Publikationsdatum: 2017-12-08
    Beschreibung: Water, Vol. 9, Pages 954: Transient Modeling of Flow in Unsaturated Soils Using a Novel Collocation Meshless Method Water doi: 10.3390/w9120954 Authors: Cheng-Yu Ku Chih-Yu Liu Jing-En Xiao Weichung Yeih In this paper, a novel meshless method for the transient modeling of subsurface flow in unsaturated soils was developed. A linearization process for the nonlinear Richards equation using the Gardner exponential model to analyze the transient flow in the unsaturated zone was adopted. For the transient modeling, we proposed a pioneering work using the collocation Trefftz method and utilized the coordinate system in Minkowski spacetime instead of that in the original Euclidean space. The initial value problem for transient modeling of subsurface flow in unsaturated soils can then be transformed into the inverse boundary value problem. A numerical solution obtained in the spacetime coordinate system was approximated by superpositioning Trefftz basis functions satisfying the governing equation for boundary collocation points on partial problem domain boundary in the spacetime coordinate system. As a result, the transient problems can be solved without using the traditional time-marching scheme. The validity of the proposed method is established for several test problems. Numerical results demonstrate that the proposed method is highly accurate and computationally efficient. The results also reveal that it has great numerical stability for the transient modeling of subsurface flow in unsaturated soils.
    Digitale ISSN: 2073-4441
    Thema: Energietechnik
    Publiziert von MDPI Publishing
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  • 7
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    Sustainability, Vol. 10, Pages 77: Designing a Climate-Resilient Environmental Curriculum—A Transdisciplinary Challenge (2017)
    MDPI Publishing
    Details
    Publikationsdatum: 2017-12-30
    Beschreibung: Sustainability, Vol. 10, Pages 77: Designing a Climate-Resilient Environmental Curriculum—A Transdisciplinary Challenge Sustainability doi: 10.3390/su10010077 Authors: Cheng-Yu Yu Yi-Chang Chiang Building resilience is a promising transdisciplinary area that contributes to addressing the impacts of climate change. This paper focused on the design of climate-resilient environmental curriculums to enhance environmental quality. Transdisciplinary approaches have been recognized as being well-placed to assist responses to climate change, which is a complex phenomenon and problem. Semi-structured interviews were conducted to explore how climate-resilient environmental education can be integrated into the design, implementation, and practice transdisciplinary manner into curriculums. Transdisciplinary curriculum design is an important factor determining the quality of modules, especially in the field of environmental design, due to its real-life setting characteristics. As students are trained with new projects, and under different socioeconomic and environmental conditions, curriculum design requires modification. Moreover, promoting transdisciplinary studies is a new trend that influences curriculum design. Compared to the interdisciplinary approach, the transdisciplinary approach is concerned with issues and subjects that exist between disciplines, across different disciplines, and beyond all the disciplines, leading to an immense space of new knowledge. This approach leads to integrated research that involves non-academic participants. We concluded that the transdisciplinary approach is beneficial for students in two ways: better performance in practical modules, and addresses the real interests of the students. Feedback from students about the curriculum design suggested that, to consider the individual student’s personal circumstances, multiple training methods should be used. The transdisciplinary approach to climate-resilient environmental curriculum design using a participative process amongst stakeholders is crucial; however, in this study, different opinions amongst interviewed tutors may obstruct the realization of the students’ wishes.
    Digitale ISSN: 2071-1050
    Thema: Energietechnik
    Publiziert von MDPI Publishing
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  • 8
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    Impaired embryonic development in glucose-6-phosphate dehydrogenase-deficient Caenorhabditis elegans due to abnormal redox homeostasis induced activation of calcium-independent phospholipase and alteration of glycerophospholipid metabolism (2017)
    Nature Publishing Group (NPG)
    Details
    Publikationsdatum: 2017-01-13
    Beschreibung: Impaired embryonic development in glucose-6-phosphate dehydrogenase-deficient Caenorhabditis elegans due to abnormal redox homeostasis induced activation of calcium-independent phospholipase and alteration of glycerophospholipid metabolism Cell Death and Disease 8, e2545 (January 2017). doi:10.1038/cddis.2016.463 Authors: Tzu-Ling Chen, Hung-Chi Yang, Cheng-Yu Hung, Meng-Hsin Ou, Yi-Yun Pan, Mei-Ling Cheng, Arnold Stern, Szecheng J Lo & Daniel Tsun-Yee Chiu
    Digitale ISSN: 2041-4889
    Thema: Biologie , Medizin
    Publiziert von Nature Publishing Group (NPG)
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  • 9
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    Degranulation of mast cells induced by gastric cancer-derived adrenomedullin prompts gastric cancer progression (2018)
    Nature Publishing Group (NPG)
    Details
    Publikationsdatum: 2018-10-11
    Beschreibung: Degranulation of mast cells induced by gastric cancer-derived adrenomedullin prompts gastric cancer progression Degranulation of mast cells induced by gastric cancer-derived adrenomedullin prompts gastric cancer progression, Published online: 10 October 2018; doi:10.1038/s41419-018-1100-1 Degranulation of mast cells induced by gastric cancer-derived adrenomedullin prompts gastric cancer progression
    Digitale ISSN: 2041-4889
    Thema: Biologie , Medizin
    Publiziert von Nature Publishing Group (NPG)
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 10
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    Sustainability, Vol. 10, Pages 3259: An Application of Sustainable Development in Indigenous People’s Revival: The History of an Indigenous Tribe’s Struggle in Taiwan (2018)
    MDPI Publishing
    Details
    Publikationsdatum: 2018-09-13
    Beschreibung: Sustainability, Vol. 10, Pages 3259: An Application of Sustainable Development in Indigenous People’s Revival: The History of an Indigenous Tribe’s Struggle in Taiwan Sustainability doi: 10.3390/su10093259 Authors: Cheng-Yu Yu Community development is seen as a crucial factor to realize sustainable development and vice versa, and for indigenous peoples in particular due to their associations with nature and natural resources. However, historical exploitation of indigenous peoples has resulted in their underachievement worldwide. The popularization of the concept of sustainable development followed a series of international treaties and conventions that shed light on indigenous peoples’ revival. Drawing upon Michel Foucault’s notion of the power-knowledge relationship, this article uses a case study of an indigenous tribe, the Smangus in Taiwan, to demonstrate how a politically, socially and economically disadvantaged community incorporates their traditional norms and customs into the notion of sustainable development and reinterprets it to adapt the community’s conditions. By re-uniting the community and establishing a cooperative organization, the community has revived cohesion in their community. The community’s conduct is investigated through the United Nations’ Sustainable Development Goals 2015–2030, and the article illustrates how it fulfils three Targets and the extent to which they are fulfilled. To conclude, Smangus’ case remind us of the importance of achieving sustainable development goals on micro- and local levels, and the value of empowering local communities to pursue their own sustainable development goals according to their circumstances. This article ends with suggestions for future research, and suggests that more studies using such a bottom-up approach to sustainable development would help to accumulate knowledge and experiences to establish a pattern of success to help other disadvantaged communities, draw focus to the need to bridge the policy gaps between the United Nations and local communities, and recall attention to the role of micro- and local communities to achieve sustainable development goals.
    Digitale ISSN: 2071-1050
    Thema: Energietechnik
    Publiziert von MDPI Publishing
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