نتایج جستجو برای: sais phreatic aquifer
تعداد نتایج: 8858 فیلتر نتایج به سال:
Groundwater samples that were distributed across the Yancheng area in lower reaches of Huaihe River collected from phreatic aquifer and first confined water layer during summer 2016. Using quality index, suitability groundwater for drinking irrigation purposes was systematically evaluated. The controlling factors solute formation causes deterioration discussed using Chadha diagram relationship ...
Coastal aquifers in semi-arid zones are particularly exposed to environmental changes because of their low annual recharge and the increasing anthropogenic pressure. This is case Trarza phreatic aquifer (SW Mauritania), which uppermost northern part great Senegalese-Mauritanian sedimentary basin. The interactions between Atlantic Ocean Tertiary-Quaternary have evolved considerably during last m...
In this paper, we investigate the relevance of two simple computational models of immunization in Time Dependent optimization (TDO) problems. At rst, we propose a Simple Arti cial Immune System (Sais) and experimentally compare its reactiveness and robustness to well known evolutionist approaches. Sais is then applied to a cyclic dynamical environment in order to evaluate its ability to feature...
We present in this paper a new inverse method for the study of the seepage from symmetrical earthen open channels. We map the half-strip from the complex potential domain onto the unit half-disk from an auxiliary ζ plane. We introduce Levi-Civitá’s function whose imaginary part vanishes on the diameter [−1, 1] of the half-disk by virtue of the boundary conditions imposed on the free lines. Then...
The ongoing transformation of supreme audit institutions (SAIs) external environment is changing the demands and expectations its stakeholders. triggered by technological advancements, increased demand for accountability, transparency means a change in way auditing done. literature provides evidence an innovation within private sector audit. Private research has focused mainly on technology ado...
In the future, environmental disasters and resource constraints will continue to impact public sector audit environment. Governments be held responsible for their responses corresponding financial impacts, particularly rising levels of debt. Supreme Audit Institutions (SAIs) are vital in keeping governments accountable. Yet, they also need legitimacy subject isomorphic pressures gain this. Mime...
The nomenclature for Kansas aquifers needs revision. Many of the names currently in use were derived in an ad hoc manner without the benefit of a consistent set of hydrogeologically based guidelines. Because nomenclature forms the basis of scientific discussion of hydrologic issues, names should be clearly defined and consistently applied in order to prevent erroneous or unintended hydrologic i...
Groundwater artificial recharge and medium characteristics represent the major factors in controlling groundwater flow processes managed aquifer areas. According to depositional features of alluvial fans, an analogous homogeneous phreatic sand tank corresponding inhomogeneous scale numerical models were established investigate under combined influence (human activities) decaying hydraulic condu...
The Po Plain (northern Italy) is one of the largest aquifers in Europe, and 67% utilized agricultural land this area classified as a nitrate vulnerable zone (NVZ). However, it hosts intensive agriculture livestock farming. In stretch Mincio River (a tributary River), hydraulic heads physico-chemical parameters river groundwater were monitored for hydrologic year (2020–2021), to evaluate effects...
The Edwards Aquifer and related Edwards-Trinity of Central Texas, USA, is a global hotspot stygobiont biodiversity. We summarize 125 years biological investigation at the San Marcos Artesian Well (SMAW), best studied most biodiverse groundwater site (55 taxa: 39 described 16 undescribed) within Groundwater Ecosystem. Cluster analysis redundancy (RDA) incorporating temporally derived, distance-b...
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