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  • 1
    Online Resource
    Online Resource
    Behaviors of Trace Metals in Environment : The Pollution in Regional and Metropolis Areas (2020)
    Singapore :Springer Nature Singapore :
    Details
    Keywords: Environmental chemistry. ; Environmental monitoring. ; Physical geography. ; Environmental Chemistry. ; Environmental Monitoring. ; Earth System Sciences.
    Description / Table of Contents: The Regional Pollution of Trace Metals—the Hetao Area, China -- The Metropolis Pollution of Trace Metals — Shanghai and Nanjing, China -- The Experimental Research on the Behaviors of Trace Metals -- An Approach on the Behavior Impacts and Factors of Trace Metals in Environment -- The Speciation of Trace Metals and Research Methods -- An Approach to the Identification for the Original and Added Concentrations of Trace Metals in Soil System Polluted by Trace Metals -- Main Research Results.
    Abstract: This book focuses on the behavior and impact of trace metals in the environment by studying typical cases from China such as the Hetao Area of the Yellow River, Shanghai, and Nanjing. Based on samples and experiments on the behavior of pollutants, it systematically discusses the regulation of trace metals’ distribution, accumulation, and migration, associated with the cause of formation demonstration. The author subsequently uses the acquired data to review the evolving trend of trace metal behaviors in natural systems (river or lake water, sediments, and soils), develops suggestions for the prevention of their negative effects, and devise treatments. Moreover, he proposes solutions to difficult research issues such as trace metal speciation extraction, and an analysis, along with operational procedures. Given its scope, the book will provide a valuable guide for researchers and engineers in relevant disciplines of the environmental sciences and engineering, and for environmental policymakers to consult in practices.
    Type of Medium: Online Resource
    Pages: XII, 364 p. 147 illus., 25 illus. in color. , online resource.
    Edition: 1st ed. 2020.
    ISBN: 9789811336126
    URL: https://doi.org/10.1007/978-981-13-3612-6
    DOI: 10.1007/978-981-13-3612-6
    DDC: 577.14
    Language: English
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    E-BOOKS (AWI ONLY)
  • 2
    Monograph available for loan
    Monograph available for loan
    Dynamics of magnetically trapped particles : foundations of the physics of radiation belts and space plasmas (2014)
    Heidelberg : Springer
    Details
    Call number: M 17.90543
    Description / Table of Contents: This book is a new edition of Roederer’s classic Dynamics of Geomagnetically Trapped Radiation, updated and considerably expanded. The main objective is to describe the dynamic properties of magnetically trapped particles in planetary radiation belts and plasmas and explain the physical processes involved from the theoretical point of view. The approach is to examine in detail the orbital and adiabatic motion of individual particles in typical configurations of magnetic and electric fields in the magnetosphere and, from there, derive basic features of the particles’ collective “macroscopic” behavior in general planetary environments. Emphasis is not on the “what” but on the “why” of particle phenomena in near-earth space, providing a solid and clear understanding of the principal basic physical mechanisms and dynamic processes involved. The book will also serve as an introduction to general space plasma physics, with abundant basic examples to illustrate and explain the physical origin of different types of plasma current systems and their self-organizing character via the magnetic field. The ultimate aim is to help both graduate students and interested scientists to successfully face the theoretical and experimental challenges lying ahead in space physics in view of recent and upcoming satellite missions and an expected wealth of data on radiation belts and plasmas
    Type of Medium: Monograph available for loan
    Pages: xviii, 192 Seiten
    Edition: Second edition
    ISBN: 9783642415296
    Series Statement: Astrophysics and Space Science Library 403
    Classification:
    Geomagnetism, Geoelectromagnetism
    Language: English
    Note: Particle Drifts and the First Adiabatic InvariantParticle Trapping, Drift Shells and the Second Adiabatic Invariant -- Periodic Drift Motion and the Third Adiabatic Invariant -- Trapped Particle Distributions and Flux Mapping -- Violation of the Adiabatic Invariants and Trapped Particle Diffusion -- Introduction to Plasma Physics..
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    E-BOOK
  • 3
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    Unraveling the Global Warming Mitigation Potential from Recycling Subway‐Related Excavated Soil and Rock in China Via Life Cycle Assessment (2021)
    Details
    Publication Date: 2021-07-21
    Description: Many cities across China are investing in subway projects, resulting in much subway construction activity, which has experienced a surge over the past decade. The construction activities inevitably cause a dramatic quantity of subway‐related excavated soil and rock (ESR). How to manage it with minimal environmental impact on our urban ecosystem remains an open question. The present study evaluates global warming potential (GWP, expressed by CO2 eq) from different ESR recycling and landfilling scenarios via a life cycle assessment (LCA) model based on primary field investigation combined with the LCA software database. The study results illustrate that recycling ESR can significantly reduce greenhouse gas emissions. In comparison with traditional construction materials, the scenarios found that a cumulative amount of 1.1 to 1.5 million tonnes (Mt) of CO2 eq emissions could have been mitigated by using ESR generated between 2010 and 2018 to produce baking‐free bricks and recycled baked brick. Using cost–benefit analysis, potential economic benefits from recycled sand and baking‐free bricks are found to reach US$9 million annually. The findings of this study could provide better recycling options for ESR‐related stakeholders. It is important to mention that there still is much work to be done before this recycling work can be popularized in China. Integr Environ Assess Manag 2021;17:639–650. © 2020 The Authors. Integrated Environmental Assessment and Management published by Wiley Periodicals LLC on behalf of Society of Environmental Toxicology & Chemistry (SETAC)
    Description: KEY POINTS: This study focuses on the global warming potential (GWP) assessment of excavated soil and rock (ESR). Cumulative CO2 mitigation potential by recycling ESR was calculated. More than US$8 million profit could have been reached annually between 2006 and 2018. Cumulative CO2 mitigation potential could have been as high as 1.5 Mt from 2010 to 2018.
    Keywords: 333.7 ; Excavated soil and rock (ESR) ; Recycling ; CO2 mitigation ; Life cycle assessment ; Cost–benefit analysis
    Type: article
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    CITATION GEO-LEO
  • 4
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    Transition from plan environmental impact assessment to strategic environmental assessment : recommendations of the project "Policy instruments for a Chinese sustainable future" (2009)
    Stockholm : Stockholm Environment Inst. | Wuppertal : Wuppertal Institut für Klima, Umwelt, Energie
    Details
    Publication Date: 2016-04-28
    Keywords: ddc:320
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: English
    Type: report , doc-type:report
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    PAPER (OA)
  • 5
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    The comprehensive effect of natural food quality and quantity on growth rate of herbivore consumers (2023)
    Elsevier
    In:  EPIC3Ecological Indicators, Elsevier, 156, pp. 111129-111129, ISSN: 1470-160X
    Details
    Publication Date: 2023-11-23
    Description: The performance of herbivore consumers in freshwater ecosystems is influenced by food quality and quantity, which are crucial factors in understanding energy flow. However, the comprehensive effects of these factors on consumer growth based on natural food research remain unclear. To address this gap, we conducted a growth experiment culturing the Cladocera Daphnia similis in natural lake water collected from 30 subtropical lakes. Our results showed that the seston concentration (SC), seston phosphorus (seston P), and seston carbon: phosphorus ratio (seston C:P, in moles) were the most important factors in influencing the growth rate of D. similis according to the Random Forest model. Specifically, the growth rate of D. similis was significantly positive correlated with SC and seston P, and significantly negative correlated with seston C:P. D. similis exhibited the optimal growth performance within the seston C:P range of 32.8 to 69.8, with a sharp decline in growth rate observed at a break point of seston C:P of 70. The combined effect of food quality and quantity on growth rate was that higher SC (≥0.26 mg C/L), lower seston C:P (≤69.80), and higher P (≥0.11 mmol/g) were associated with significantly higher growth rates. Additionally, the growth rate increased significantly with the biomass of cryptophyte, indicating the importance of food composition. Our study shows that the growth rate of D. similis is co-affected by the quality and quantity of natural food. SC, seston C:P, seston P and algae composition are reliable indicators for assessing the growth rate of consumer in freshwater ecosystems. The inhibitory effect of low C:P on consumer growth should be applied with caution when assessing the development of herbivore consumers in natural lakes.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
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  • 6
    Electronic Resource
    Electronic Resource
    Distance dependence of long-range electron transfer in cytochrome c derivatives containing covalently attached cobalt cage complexes (1992)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 114 (1992), S. 9909-9915 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00051a024
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    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Synthesis of One-Dimensional Chalcogenides by a Novel Hydrothermal Process (2004)
    s.l. ; Stafa-Zurich, Switzerland
    Solid state phenomena Vol. 99-100 (July 2004), p. 203-208 
    Details
    ISSN: 1662-9779
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Physics
    Notes: A TGA assisted hydrothermal process was employed to prepare chalcogenide nanorods. The different morphology of CdS nanomaterials prepared with and without the TGA assisted hydrothermal process indicates that TGA plays a critical role in controlling the nucleation and growth of CdS nanomaterials. The paper makes a preliminary presentation of the mechanisms of preparation of chalcogenide nanostructures with and without the use of the TGA assisted hydrothermal synthesis. FeS nanorods and nanoparticles have been prepared by the TGA assisted and without the TGA assisted hydrothermal process, respectively, which confirmed the proposed mechanism. X-ray diffraction (XRD) shows that the nanorods are of orthorhombic structure, and selected area electron diffraction (SAED) pattern showed that the FeS nanorods were single crystalse. Further investigation for the synthesis of other chalcogenides will be undertaken in orderto confirm the proposed mechanism
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/26/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.99-100.203.pdf
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  • 8
    Electronic Resource
    Electronic Resource
    An approach to studying heavy metal pollution caused by modern city development in Nanjing, China (1999)
    Springer
    Environmental geology 38 (1999), S. 223-228 
    Details
    ISSN: 1432-0495
    Keywords: Key words Heavy metal pollution ; Soil ; City development ; Nanjing ; China
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract  Nanjing is currently one of the fastest developing regions in terms of construction and economy in China. Heavy metal pollution is becoming more serious with the expansion of production and life scales. Four environmental units (highway, refinery, rubbish dumps associated with human daily life, and shoal of the Yangtse River) were selected from the region according to the geneses of the pollution to study and evaluate the distribution and mechanism of the contamination, the speciations of the polluting elements, and the geneses of the pollution in the soils and sediments. The purposes of the study are to understand generally the current situation and the cause of the pollution, and to provide a scientific basis to prevent and solve the pollution problem. At the same time, it would be helpful to probe the effective way of studying heavy metal pollution resulting from the development of modern cities and to accumulate data. It is indicated by the study that the heavy metals contained in the soil of the environmental unit of the highway are Pb, Co and Cr; in the soil of the refinery Cr, V, Pb, Ni, and Co; in the soil of the rubbish plot Co, Cu, and Sb; in the sediments of the shoal Pb, Co, Cu, and Ni. Fe-Mn oxide is given the first place to the speciations in polluting heavy metals transmitted by air. Carbonate is more in speciations of polluting heavy metals transmitted by water than in speciations of the metals transmitted by air. In the ten elements studied, Pb is most directly poisonous to the plants in the region; Co and Cu are the next, and Ni is the least. Heavy metal pollution has been occurring in the soils and sediments of the region and the situation will worsen if some effective measures are not taken.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002540050418
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  • 9
    Electronic Resource
    Electronic Resource
    RCSP and stop-and-go: a comparison of two non-work-conserving disciplines for supporting multimedia communication (1996)
    Springer
    Multimedia systems 4 (1996), S. 346-356 
    Details
    ISSN: 1432-1882
    Keywords: Key words:Rate controlled static priority (RCSP) – Stop-and-go – Admission control – Multimedia traffic
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract. To support emerging real-time applications, high-speed integrated services networks must provide end-to-end performance guarantees on a per-connection basis in a networking environment. Resource management algorithms must accommodate traffic that may get burstier as it traverses the network due to complex interactions among packet streams at each switch. To address this problem, several non-work-conserving packet-service disciplines have been proposed. Non-work-conserving servers may be idle and hold packets under certain conditions, to reconstruct, fully or partially, the traffic pattern of the original source inside the network and prevent the traffic from becoming burstier. We compare two non-work-conserving service disciplines. Stop-and-go uses a multilevel framing strategy to allocate resources in a single switch and to ensure traffic smoothness throughout the network. Rate controlled static priority (RCSP) decouples the server functions with two components: (1) a regulator to control traffic distortion introduced by multiplexing effects and load fluctuations in previous servers, and 2) a static priority scheduler to multiplex the regulated traffic. We compare the two service disciplines in terms of traffic specification, scheduling mechanism, buffer space requirement, end-to-end delay characteristics, connection admission-control algorithms, and achievable network utilization. The comparison is first done analytically, and then empirically by using two 10-min traces of MPEG compressed video.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s005300050036
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  • 10
    Electronic Resource
    Electronic Resource
    RED-VBR: a renegotiation-based approach to support delay-sensitive VBR video (1997)
    Springer
    Multimedia systems 5 (1997), S. 164-176 
    Details
    ISSN: 1432-1882
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract. Previous approaches to supporting video on packet-switched networks include deterministic service, statistical service, predicted service, and feedback-based schemes. These schemes represent different tradeoffs in quality of service (QOS), achievable network utilization, and method of dealing with overload. In this paper, we propose a new service called REnegotiated Deterministic Variable Bit Rate Service (RED-VBR) that attempts to strike an efficient balance with the above tradeoffs. The approach is based on deterministic guarantees with client-controlled renegotiation of traffic and QOS parameters and graceful adaptation during overload periods. We introduce a connection admission control algorithm for RED-VBR which bounds the renegotiation failure probability. We evaluate the scheme using two traces of MPEG-compressed video and show that, even with simple renegotiation polices and relatively low renegotiation frequencies, high network utilization in the range of 50–80% can be achieved. For traffic that is bursty over long intervals, this represents a 100–150% improvement in network utilization compared to deterministic service. Compared to statistical and predicted service, our approach allows more graceful and client-controlled QOS degradation during overload periods.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s005300050053
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