نتایج جستجو برای: sand mining
تعداد نتایج: 114337 فیلتر نتایج به سال:
This paper presents the use of satellite data (i.e., Landsat-5 & Landsat-8) to interpret change land cover from 1997 2020. The study area covers administrative boundary Lumajang Regency. land-cover map year derived Landsat-5. Land-cover 2020 interpreted Landsat-8. uses two methods image classifications unsupervised and supervised). procedure includes enhancement, registration, classificatio...
A specific set of environmental conditions characterizes plant species patterns and distribution on Earth. Similarly, riparian vegetation can be impacted by anthropogenic activities like mining practices involving the removal cover, which destroys structure diversity habitat, adversely affecting ecosystem services. In this study, we explored role variables biotic intervention in deriving spatia...
the outcome of this research is a practical framework for “idea generation phase of new product development process based on customer knowledge”. in continue, the mentioned framework implemented in a part of iran n.a.b market and result in segmenting and profiling this market. also, the critical new product attributes and bases of communication message and promotion campaigns extracted. we have...
Trinidad has tar sand resources of about 2 billion barrels of oil on land in the Parrylands/Guapo and Brighton areas. With an oil price of over USD 25 per barrel, the commercial extraction of oil from Trinidad tar sands is viable, but it requires a careful study. The relatively small extent of this tar sand (about 10,000 acres and with depths varying from surface to less than 500 feet) and with...
Based on four years of spatially synchronous topographic data the Oujiang Estuary from 2002 to 2019, variations and physical mechanisms estuarine evolution driven by natural conditions human activities since beginning this century were analyzed. The results show that has changed dramatically in past 20 years. From net sediment erosion estuary was 163.44 million m3, average bed elevation river-d...
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