Earth Sciences

Volume 7, Issue 6, December 2018

  • Development of Finite Difference Explicit and Implicit Numerical Reservoir Simulator for Modelling Single Phase Flow in Porous Media

    Aphu Elvis Selase, Brantson Eric Thompson, Addo Bright Junior, Akunda Doreen

    Issue: Volume 7, Issue 6, December 2018
    Pages: 242-259
    Received: Jun. 26, 2018
    Accepted: Oct. 04, 2018
    Published: Oct. 29, 2018
    DOI: 10.11648/j.earth.20180706.11
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    Abstract: Every petroleum reservoir requires some means of predicting future performances as well as optimizing recovery of hydrocarbons under various operating conditions. Moreover, there is a need to simulate fluid flow in porous media due to the uncertainty and heterogeneity that is associated with petroleum reservoirs. Therefore, this study developed 1D ... Show More
  • Nature of Old Maps: As Primary Source Materials for Historical Geography

    Akihiro Kinda

    Issue: Volume 7, Issue 6, December 2018
    Pages: 260-267
    Received: Aug. 20, 2018
    Accepted: Sep. 30, 2018
    Published: Oct. 29, 2018
    DOI: 10.11648/j.earth.20180706.12
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    Abstract: This paper discusses on the meaning and the nature of old maps of both small and large scales for historical geography. The old map can be an object of research itself as well as a source for research on something else. But both research directions have been closely connected with each other, and also each research direction needs inevitably anothe... Show More
  • Method Established for Source Apportionment of Human Health Risk in Regional Atmospheric Environment

    Huanbo Wu, Xiao Liu, Wenkai Guo, Qiang Chen

    Issue: Volume 7, Issue 6, December 2018
    Pages: 268-274
    Received: Oct. 18, 2018
    Accepted: Nov. 06, 2018
    Published: Nov. 30, 2018
    DOI: 10.11648/j.earth.20180706.13
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    Abstract: Previous studies of source apportionment were only focused on contribution rates of pollutants concentration, but have not evaluated contribution rates of influencing degree of pollutants on people's health. To assess the health risk of pollution source to human health in the atmospheric environment, a method of source apportionment of human health... Show More
  • Influence of Ventilation Modes on Carbon Dioxide Fixation of Chlorella vulgaris in a Flat-Plate Photobioreactor

    Yongfu Li, Ruiqian Li, Haifang Fu, Ying Gao

    Issue: Volume 7, Issue 6, December 2018
    Pages: 275-282
    Received: Dec. 09, 2018
    Accepted:
    Published: Dec. 11, 2018
    DOI: 10.11648/j.earth.20180706.14
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    Abstract: Microalgae have the ability to mitigate CO2 emission with a high productivity, thereby having the potential for applications in reducing CO2 with high concentration. To date the effect of different ventilation modes in photobioreactor on the high level CO2 fixing capacity was still unclear. To explore an efficient, convenient and cheap aerating met... Show More
  • A New Application of the Digital Synthetic Schlieren in Lab Experiments of the Internal Waves

    Qingjun Meng, Yanzhen Gu, Peiliang Li, Xinzhu Wu

    Issue: Volume 7, Issue 6, December 2018
    Pages: 283-288
    Received: Dec. 09, 2018
    Accepted:
    Published: Dec. 11, 2018
    DOI: 10.11648/j.earth.20180706.15
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    Abstract: Laboratory experiment is an important method in the study of ocean internal waves, and the schlieren technique is an effective way to observe the internal waves in the laboratory. The digital synthetic schlieren technique is mostly applied to two-dimensional density-stratified flows. The technique is improved by setting up the Charge Coupled Device... Show More
  • First Mention of Unusuropode castroi Duarte & Santos, 1962 (Crustacea: Isopoda) in the Upper Cretaceous of Gara es Sbâa Lagerstätte, South-Eastern Morocco

    Joan Corbacho, Scott Morrison, Máximo Alonso

    Issue: Volume 7, Issue 6, December 2018
    Pages: 289-293
    Received: Nov. 01, 2018
    Accepted: Nov. 16, 2018
    Published: Dec. 20, 2018
    DOI: 10.11648/j.earth.20180706.16
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    Abstract: This article presents an isopod that arrived at the Geological Museum of the Seminary, Barcelona (Spain) a few years ago, as part of the material compiled by the first author of this article (J C) in an outcrop of Gara es Sbâa (Morocco). This isopod is identified as Unusuropode castroi, is the first reference to this species outside of Brazil and a... Show More
  • Assessment of Heavy Metal Contents and Pollution Risk in Reclaimed Soils of a Bauxite Mine

    Nie Xingshan

    Issue: Volume 7, Issue 6, December 2018
    Pages: 294-300
    Received: Sep. 19, 2018
    Accepted: Dec. 04, 2018
    Published: Dec. 28, 2018
    DOI: 10.11648/j.earth.20180706.17
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    Abstract: A study on the contents and pollution state of heavy metals in the soils at the Xiaoyi Bauxite Mine in Shanxi, China was conducted to provide a scientific basis for understanding and evaluating the risks of heavy metal pollution in reclaimed soils in mining areas. The contents of Cd, Cr, Cu, Pb, As, and Ni were analyzed by inductively coupled plasm... Show More