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  • 1
    Call number: 9/M 07.0421(510)
    In: Special publications / the Geological Society, London, No. 510
    Description / Table of Contents: China has a rich record of Holocene volcanism that is relatively little known outside the country. It is encountered in large stratovolcanoes in the NE, linked to subduction of the Pacific plate (e.g. Changbaishan), in smaller volcanoes on the Tibetan margin, associated with the collision of India and Eurasia (e.g. Tengchong, Ashishan), and in more isolated centres, possibly resulting from mantle upwelling (e.g. volcanoes in Hainan island). This makes China a natural laboratory for studies of intraplate volcanism, and significant progress in understanding its nature and origins has been made over the past quarter century. Here, we introduce the first publication in English to provide a comprehensive survey of the state of knowledge and research highlights. Accordingly, we provide an overview of the dynamics, geology, geochemistry, volcanic histories and geophysical studies of 14 volcanic areas associated with the Holocene documented thus far. The special publication represents a benchmark reference on the topic but, as importantly, we hope that it will stimulate new, international collaborations aimed at deepening our understanding of the origins, history, hazards and associated risks of China's volcanoes.
    Type of Medium: Monograph available for loan
    Pages: vi, 314 Seiten , Illustrationen, Diagramme, Karten
    ISBN: 9781786205407 , 978-1-78620-540-7
    ISSN: 0305-8719
    Series Statement: Special publications / the Geological Society, London No. 510
    Language: English
    Note: Contents Xu, J., Oppenheimer, C., Hammond, J.O.S. and Wei, H. / Perspectives on the active volcanoes of China Wei, H., Zhao, B., Chen, Z. and Yu, H. / Volcanic processes and magmatic evolution of Tianchi volcano, Changbaishan Zhao, B., Xu, D., Bai, Z. and Chen, Z. / Volcanism in the Longgang volcanic field of NE China: insights from eruption history, volcano types and geochemical characteristics Bai, X., Wei, W., Yu, H. and Chen, Z. / Petrogenesis and dynamic implications of the Cenozoic alkali basalts from the Jingpohu Volcanic Field, NE China Chen, Z., Zhao, Y., Bai, X., Wei, W., Liu, Y. and Bai, Z. / Wudalianchi volcanic field, NE China: tectonic setting, eruptive history, and geophysical insights Zhao, Y.-W., Zou, H. and Li, N. / Geomorphology and geochemistry of the Late Cenozoic volcanoes in the Halaha River–Chaoer River volcanic fields, western Greater Hinggan Mountain Range, NE China Li, N., Zhao, Y.-W., Gong, L.-W. and Wang, J.-L. / The Late Cenozoic volcanic groups in the South Daxing’anling, NE China: geology, geochemistry, and chronology Hong, L., Zhang, Y., Zhang, L., Xu, Y.-G., Liu, Z. and He, P. / Olivine chemistry of the Quaternary Datong basalts of the Trans-North China Orogen: insights into mantle source lithology and redox–hydration state Xu, J., Zhao, B., Yu, H., Wei, F. and Chen, Z. / Volcanic geology and petrochemistry of Ashikule volcanic field in western Kunlun Mountains of the Tibetan plateau Zhao, B., Wei, F., Yang, W., Xu, J. and Cui, X. / Cenozoic volcanism along Dahongliutan fault in the West Kunlun Mountains, China: implication from distribution of volcanic rocks, volcanic geology, and geochemistry Yu, H., Zhao, B., Chen, Z., Wei, H., Yang, W. and Bai, X. / Eruption history, petrogeochemistry, and geodynamic background of Tengchong volcanoes in Yunnan Province, SW China Wei, F., Wei, W. and Yu, H. / The Cenozoic volcanic fields in northern Hainan Island and the Leizhou Peninsula, south China: eruption history, magma source and dynamic background Yu, W., Wei, W., Wei, F., Bai, X., Liu, S. and Xu, D./ Magma plumbing system and origin of the intraplate volcanoes in Mainland China: an overview of constraints from geophysical imaging Ji, L., Xu, J., Liu, L. and Zhang, W. / A review of present-day deformation of active volcanoes in China between 1970 and 2013 Pan, B., Liu, G., Cheng, T., Zhang, J., Sun, Z., Ma, B., Wu, H., Liang, G., Guo, M., Kong, Q., Wei, F., Zhao, C. and Zhao, Q. / Development and status of active volcano monitoring in China Liang, Y. and Xu, J. / The impact of volcanic ash on the safety of aviation industry: review of China’s current situation Wang, X., Pan, B., Pan, M. and Liang, Y. / Current situation of early warning and emergency countermeasures of volcanic eruptions in China Chen, Z. and Chen, Z. / Identifying references to volcanic eruptions in Chinese historical records Pan, B., Cheng, T., Xu, J., Zhang, J. and Chen, Z. / Knowledge base of Cenozoic volcanoes in China Index
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    Branch Library: GFZ Library
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  • 2
    Call number: 10.1144/SP510-2021-87 895 (e-book)
    In: Special publications / the Geological Society, London, No. 510
    Description / Table of Contents: China has a rich record of Holocene volcanism that is relatively little known outside the country. It is encountered in large stratovolcanoes in the NE, linked to subduction of the Pacific plate (e.g. Changbaishan), in smaller volcanoes on the Tibetan margin, associated with the collision of India and Eurasia (e.g. Tengchong, Ashishan), and in more isolated centres, possibly resulting from mantle upwelling (e.g. volcanoes in Hainan island). This makes China a natural laboratory for studies of intraplate volcanism, and significant progress in understanding its nature and origins has been made over the past quarter century. Here, we introduce the first publication in English to provide a comprehensive survey of the state of knowledge and research highlights. Accordingly, we provide an overview of the dynamics, geology, geochemistry, volcanic histories and geophysical studies of 14 volcanic areas associated with the Holocene documented thus far. The special publication represents a benchmark reference on the topic but, as importantly, we hope that it will stimulate new, international collaborations aimed at deepening our understanding of the origins, history, hazards and associated risks of China's volcanoes.
    Type of Medium: 12
    Pages: 1 Online-Ressource (vi, 314 Seiten) , Illustrationen, Diagramme, Karten
    ISBN: 9781786205407 , 978-1-78620-540-7
    ISSN: 0305-8719
    Series Statement: Special publications / the Geological Society, London No. 510
    Language: English
    Note: Contents Xu, J., Oppenheimer, C., Hammond, J.O.S. and Wei, H. / Perspectives on the active volcanoes of China Wei, H., Zhao, B., Chen, Z. and Yu, H. / Volcanic processes and magmatic evolution of Tianchi volcano, Changbaishan Zhao, B., Xu, D., Bai, Z. and Chen, Z. / Volcanism in the Longgang volcanic field of NE China: insights from eruption history, volcano types and geochemical characteristics Bai, X., Wei, W., Yu, H. and Chen, Z. / Petrogenesis and dynamic implications of the Cenozoic alkali basalts from the Jingpohu Volcanic Field, NE China Chen, Z., Zhao, Y., Bai, X., Wei, W., Liu, Y. and Bai, Z. / Wudalianchi volcanic field, NE China: tectonic setting, eruptive history, and geophysical insights Zhao, Y.-W., Zou, H. and Li, N. / Geomorphology and geochemistry of the Late Cenozoic volcanoes in the Halaha River–Chaoer River volcanic fields, western Greater Hinggan Mountain Range, NE China Li, N., Zhao, Y.-W., Gong, L.-W. and Wang, J.-L. / The Late Cenozoic volcanic groups in the South Daxing’anling, NE China: geology, geochemistry, and chronology Hong, L., Zhang, Y., Zhang, L., Xu, Y.-G., Liu, Z. and He, P. / Olivine chemistry of the Quaternary Datong basalts of the Trans-North China Orogen: insights into mantle source lithology and redox–hydration state Xu, J., Zhao, B., Yu, H., Wei, F. and Chen, Z. / Volcanic geology and petrochemistry of Ashikule volcanic field in western Kunlun Mountains of the Tibetan plateau Zhao, B., Wei, F., Yang, W., Xu, J. and Cui, X. / Cenozoic volcanism along Dahongliutan fault in the West Kunlun Mountains, China: implication from distribution of volcanic rocks, volcanic geology, and geochemistry Yu, H., Zhao, B., Chen, Z., Wei, H., Yang, W. and Bai, X. / Eruption history, petrogeochemistry, and geodynamic background of Tengchong volcanoes in Yunnan Province, SW China Wei, F., Wei, W. and Yu, H. / The Cenozoic volcanic fields in northern Hainan Island and the Leizhou Peninsula, south China: eruption history, magma source and dynamic background Yu, W., Wei, W., Wei, F., Bai, X., Liu, S. and Xu, D./ Magma plumbing system and origin of the intraplate volcanoes in Mainland China: an overview of constraints from geophysical imaging Ji, L., Xu, J., Liu, L. and Zhang, W. / A review of present-day deformation of active volcanoes in China between 1970 and 2013 Pan, B., Liu, G., Cheng, T., Zhang, J., Sun, Z., Ma, B., Wu, H., Liang, G., Guo, M., Kong, Q., Wei, F., Zhao, C. and Zhao, Q. / Development and status of active volcano monitoring in China Liang, Y. and Xu, J. / The impact of volcanic ash on the safety of aviation industry: review of China’s current situation Wang, X., Pan, B., Pan, M. and Liang, Y. / Current situation of early warning and emergency countermeasures of volcanic eruptions in China Chen, Z. and Chen, Z. / Identifying references to volcanic eruptions in Chinese historical records Pan, B., Cheng, T., Xu, J., Zhang, J. and Chen, Z. / Knowledge base of Cenozoic volcanoes in China Index
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  • 3
    Publication Date: 2017-09-22
    Description: Xenotransplantation is a promising strategy to alleviate the shortage of organs for human transplantation. In addition to the concerns about pig-to-human immunological compatibility, the risk of cross-species transmission of porcine endogenous retroviruses (PERVs) has impeded the clinical application of this approach. We previously demonstrated the feasibility of inactivating PERV activity in an immortalized pig cell line. We now confirm that PERVs infect human cells, and we observe the horizontal transfer of PERVs among human cells. Using CRISPR-Cas9, we inactivated all of the PERVs in a porcine primary cell line and generated PERV-inactivated pigs via somatic cell nuclear transfer. Our study highlights the value of PERV inactivation to prevent cross-species viral transmission and demonstrates the successful production of PERV-inactivated animals to address the safety concern in clinical xenotransplantation.
    Keywords: Genetics, Microbiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Geosciences , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 71 (1992), S. 780-782 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A GaAs delta-doped tunneling diode having a δn+-i-δp+-i-δn+ structure is investigated. A negative differential resistance behavior with peak-to-valley ratio as high as 3.1 and a peak current density of 3 kA/cm2 is exhibited when the device is operated at room temperature. It becomes resistor-like at the temperature of 77 K. Theoretical analysis, based on envelope wave function approximation, indicates that the resonant interband tunneling process is responsible for room-temperature characteristics, while the band-gap widening effect is responsible for low-temperature behavior. Furthermore, the dependence of device performance on such structure parameters as doping level, and the physical dimension of the delta-doped region, etc., is discussed, and found to agree well with experimental results.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 73 (1993), S. 7990-7992 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Using the combination of carrier injection modulation (bipolar mode) and channel blocking effect (junction field-effect transistor mode), we demonstrate a three-terminal voltage-controllable negative differential resistance device with a high room-temperature peak-to-valley current ratio in an N-AlGaAs/p+-GaAs/n-GaAs structure. The third terminal is formed through a self-aligned p-type diffused ohmic contact process to the n-GaAs layer instead of the p+-GaAs layer. The structure can be viewed as a modified integration circuit of a bipolar transistor and a junction field-effect transistor.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 67 (1995), S. 2170-2172 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We report a systematic study of the effective mass of two-dimensional (2D) holes in a series of ten p-type GaAs/In0.20Ga0.80As/GaAs quantum well structure samples. The 2D hole density and its effective mass (m*)are independently determined from Shubnikov–de Haas and cyclotron resonance measurements at 4.2 K. We find the m* increases from (0.123±0.005) me to (0.191±0.015) me as the 2D hole density is varied from 0.54×1011/cm2to 8.5×1011/cm2. The experimental data are described quantitatively in terms of a two-band tight binding model using the valence band edge mass and strain-induced valence band splitting as parameters. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 63 (1988), S. 1793-1795 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We have observed a striking photoeffect in an atomic-planar-doped GaAs-AlAs/GaAs heterostructure in Shubnikov–de Haas measurements at 4.2 K. After successively illuminating the sample with a GaAs0.6P0.4 red light-emitting diode (LED), both the 2D electron density and mobility decrease initially before they start to increase upon futher illumination. This negative persistent photoconductivity is not observable when the sample is illuminated with GaAs and In0.53Ga0.47As LEDs. On the other hand, when the light dosage is large enough the usual positive persistent photoconductivity is observed with all three LEDs used. The existence of both donorlike traps and acceptorlike traps in our sample is proposed to explain these observations.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 51 (1987), S. 1821-1823 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We report the first observation of quantum Hall effect in a Ga0.25In0.75As0.5P0.5 heterostructure grown by metalorganic chemical vapor deposition growth technique.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 77 (2000), S. 2722-2724 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We investigate the transport of holes through AlAs/In0.10Ga0.90As resonant tunneling diodes which utilize InxGa1−xAs prewells in the emitter with x=0, 0.10, and 0.20. The data show an increase in peak current and bias at resonance and a concurrent increase in the peak-to-valley ratio with increasing x. We explain this enhancement in tunneling as due to confinement (or localization) of charges in the prewell and the formation of direct heavy (light) hole to heavy (light) hole conduction channels as a consequence. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 80 (2002), S. 2290-2292 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Apart from the scientific interest, texture development in copper thin films is of crucial importance to their applications as interconnects or corrosion resistant coating. We report here a dominant 〈110〉 texture of copper thin films—preferred for oxidation-resistant applications—deposited by direct current magnetron sputtering. Scanning electron microscopy shows that the copper films go through a transition from 〈111〉 columns to 〈110〉 hillocks as the deposition proceeds. Cross-sectional transmission electron microscopy (TEM) indicates that the 〈110〉 grains nucleate at boundaries of 〈111〉 grains. Further, we have proposed a stress-driven nucleation and growth model of 〈110〉 grains based on the x-ray diffraction characterization and the TEM observations. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
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