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  • 1
    Online-Ressource
    Online-Ressource
    Atlas of Mineral Deposits Distribution in China (2020) (2021)
    Singapore : Springer Singapore | Singapore : Imprint: Springer
    Details Verfügbarkeit
    Schlagwort(e): Geology. ; Mineralogy. ; Earth sciences. ; Atlas ; China ; Erzlagerstätte ; Bitumenlagerstätte ; Naturstein ; Industriemineral ; Kohlenlagerstätte ; China ; Mineralischer Rohstoff ; Lagerstätte ; Vorkommen
    Beschreibung / Inhaltsverzeichnis: This open access book includes instruction of national mineral database 2020 and atlas of national mineral deposits distribution derived from national mineral database 2020. National mineral database 2020 is based on data from National Geological Archives China(NGAC). Moreover, it introduces the construction method and updates maintenance mechanism of the mineral deposits database and proposes the concept of updating data based on collected archives. The construction guideline on national mineral deposits database provides guiding framework for the future development on geological database. .
    Materialart: Online-Ressource
    Seiten: 1 Online-Ressource(VII, 93 p. 90 illus., 89 illus. in color.)
    Ausgabe: 1st ed. 2021.
    ISBN: 9789811609725
    Serie: The China Geological Survey Series
    URL: https://doi.org/10.1007/978-981-16-0972-5
    DOI: 10.1007/978-981-16-0972-5
    Sprache: Englisch
    Anmerkung: Open Access
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 2
    Online-Ressource
    Online-Ressource
    Atlas of Mineral Deposits Distribution in China (2020) (2021)
    Singapore : Springer Singapore Pte. Limited
    Details Verfügbarkeit
    Schlagwort(e): Electronic books
    Beschreibung / Inhaltsverzeichnis: Intro -- Foreword -- Contents -- 1 Introduction to the National Mineral Deposit Database of China (2020) -- 1.1 Background -- 1.2 Method -- 2 Achievements Made in the Building of the National Mineral Deposit Database of China (2020) -- 2.1 Achievements in Data Convergence -- 2.2 Achievements in Data Mining -- 3 Significance of the Building of National Mineral Deposit Database of China (2020) -- 3.1 Providing Data for Smart Mineral Geological Survey of the China Geological Survey -- 3.2 More Efficiently Managing Mineral Resource Data of China -- 3.3 Improving the Up-to-Dateness of the Mineral Resource Data of China -- 3.4 Providing Comprehensive Data for Prospecting Prediction, Scientific Research, and Mineral Geological Survey -- 3.5 A Typical Case of Building a Database Using Big Data Mining Technology Based on Geologic Data Holdings of NGAC -- 3.6 Providing Convenient Data Query and Retrieval Services for Users with Online Service Platform -- 4 Maps of Mineral Deposits Distribution by Provinces in China.
    Materialart: Online-Ressource
    Seiten: 1 online resource (99 pages)
    ISBN: 9789811609725
    Serie: The China Geological Survey Ser.
    URL: https://ebookcentral.proquest.com/lib/kxp/detail.action?docID=6629016
    Sprache: Englisch
    Anmerkung: Description based on publisher supplied metadata and other sources
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 3
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    XAB2 functions in mitotic cell cycle progression via transcriptional regulation of CENPE (2016)
    Nature Publishing Group (NPG)
    Details
    Publikationsdatum: 2016-10-14
    Beschreibung: XAB2 functions in mitotic cell cycle progression via transcriptional regulation of CENPE Cell Death and Disease 7, e2409 (October 2016). doi:10.1038/cddis.2016.313 Authors: Shuai Hou, Na Li, Qian Zhang, Hui Li, Xinyue Wei, Tian Hao, Yue Li, Sikandar Azam, Caigang Liu, Wei Cheng, Bilian Jin, Quentin Liu, Man Li & Haixin Lei
    Digitale ISSN: 2041-4889
    Thema: Biologie , Medizin
    Publiziert von Nature Publishing Group (NPG)
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 4
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    Energies, Vol. 11, Pages 1105: Location of Faulty Section and Faults in Hybrid Multi-Terminal Lines Based on Traveling Wave Methods (2018)
    MDPI Publishing
    In: Energies
    Details
    Publikationsdatum: 2018-05-02
    Beschreibung: Energies, Vol. 11, Pages 1105: Location of Faulty Section and Faults in Hybrid Multi-Terminal Lines Based on Traveling Wave Methods Energies doi: 10.3390/en11051105 Authors: Yi Ning Dazhi Wang Yunlu Li Haixin Zhang Traveling-wave-based fault location methods are widely used for modern power systems owing to their high accuracy on two-terminal lines. However, they perform poorly on hybrid multi-terminal lines. Many traveling-wave-based methods have been developed recently to solve this problem, but they have high computational burdens and complex fault location procedures. To tackle this challenge, a new fault location method is presented in this paper. First, to ensure that the implementation of the proposed method is not affected by different line parameters, a normalization algorithm is used for hybrid multi-terminal lines, which consist of overhead lines and cables. To reduce the complexity, a novel fault section identification method that depends only on the first three arrival times is applied to separate a three-terminal fault section from the multi-terminal lines. Consequently, the fault can be located using a corresponding two-terminal fault location method in this fault section. To verify its effectiveness, fault case studies and performance evaluations are performed in the PSCAD and MATLAB/Simulink environment. The simulation results reveal that the proposed method can correctly identify the fault section and accurately locate the faults, which is simple and suitable for hybrid multi-terminal lines.
    Digitale ISSN: 1996-1073
    Thema: Energietechnik
    Publiziert von MDPI Publishing
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  • 5
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    IJERPH, Vol. 12, Pages 14958-14973: Meta-Analysis of the Copper, Zinc, and Cadmium Absorption Capacities of Aquatic Plants in Heavy Metal-PollutedWater (2015)
    MDPI Publishing
    Details
    Publikationsdatum: 2015-11-27
    Beschreibung: The use of aquatic plants for phytoremediation is an important method for restoring polluted ecosystems. We sought to analyze the capacity of different aquatic plant species to absorb heavy metals and to summarize available relevant scientific data on this topic. We present a meta-analysis of Cu, Zn, and Cd absorption capacities of aquatic plants to provide a scientific basis for the selection of aquatic plants suitable for remediation of heavy-metal pollution. Plants from the Gramineae, Pontederiaceae, Ceratophyllaceae, Typhaceae and Haloragaceae showed relatively strong abilities to absorb these metals. The ability of a particular plant species to absorb a given metal was strongly correlated with its ability to absorb the other metals. However, the absorption abilities varied with the plant organ, with the following trend: roots > stems > leaves. The pH of the water and the life habits of aquatic plants (submerged and emerged) also affect the plant’s ability to absorb elements. Acidic water aids the uptake of heavy metals by plants. The correlation observed between element concentrations in plants with different aquatic life habits suggested that the enrichment mechanism is related to the surface area of the plant exposed to water. We argue that this meta-analysis would aid the selection of aquatic plants suitable for heavy-metal absorption from polluted waters.
    Print ISSN: 1661-7827
    Digitale ISSN: 1660-4601
    Thema: Energietechnik , Medizin
    Publiziert von MDPI Publishing
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 6
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    Sensors, Vol. 15, Pages 26198-26211: Modified Particle Filtering Algorithm for Single Acoustic Vector Sensor DOA Tracking (2015)
    MDPI Publishing
    In: Sensors
    Details
    Publikationsdatum: 2015-10-27
    Beschreibung: The conventional direction of arrival (DOA) estimation algorithm with static sources assumption usually estimates the source angles of two adjacent moments independently and the correlation of the moments is not considered. In this article, we focus on the DOA estimation of moving sources and a modified particle filtering (MPF) algorithm is proposed with state space model of single acoustic vector sensor. Although the particle filtering (PF) algorithm has been introduced for acoustic vector sensor applications, it is not suitable for the case that one dimension angle of source is estimated with large deviation, the two dimension angles (pitch angle and azimuth angle) cannot be simultaneously employed to update the state through resampling processing of PF algorithm. To solve the problems mentioned above, the MPF algorithm is proposed in which the state estimation of previous moment is introduced to the particle sampling of present moment to improve the importance function. Moreover, the independent relationship of pitch angle and azimuth angle is considered and the two dimension angles are sampled and evaluated, respectively. Then, the MUSIC spectrum function is used as the “likehood” function of the MPF algorithm, and the modified PF-MUSIC (MPF-MUSIC) algorithm is proposed to improve the root mean square error (RMSE) and the probability of convergence. The theoretical analysis and the simulation results validate the effectiveness and feasibility of the two proposed algorithms.
    Digitale ISSN: 1424-8220
    Thema: Chemie und Pharmazie , Elektrotechnik, Elektronik, Nachrichtentechnik
    Publiziert von MDPI Publishing
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