Results 11 to 20 of about 902,226 (264)
A Generalized Water Quality Index for Taiwan [PDF]
By exploring the behavior and limitations of conventional methods for quality evaluation, a better overall index for water quality in Taiwan and its application in Keya River are proposed. The thirteen variables are employed for the quality assessment.
Liou, Shiow-Mey +2 more
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Pengaruh Keberadaan Bandar Udara Kelas III Seko Luwu Utara Terhadap Index Pencemaran Air
The airport is one of the best transportation systems capable of moving people quickly as fast economic growth is followed by rapid population growth.
M.Ichsan Ali, Muh. Rais Abidin
doaj +1 more source
Flood irrigation after crop harvest, e.g. autumn irrigation (AI), is a common irrigation practice in arid and semi-arid regions like Hetao Irrigation District (HID) in Northwest China to increase soil moisture and leach soil salt.
Ximin Qian +4 more
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The Total Operating Characteristic (TOC) measures how the ranks of an index variable distinguish between presence and absence in a binary reference variable.
Zhen Liu, Robert Gilmore Pontius Jr
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Index-Based Spatiotemporal Assesment Of Water Quality In Tarbela Reservoir, Pakistan (1990−2020)
Anthropogenic activities can greatly influence the lake ecosystems across the globe. Within these ecosystems, the impacts of human activities are most evident on sedimentation, light and nutrient availability, and disturbance frequency.
Nausheen Mazhar +5 more
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Evaluation of Water Extraction Indices Using Landsat Satellite Images (Case Study: Gamasiab River of Kermanshah) [PDF]
Water is one of most important human needs for life. According to importance of subject, discussion of management and utilization of water resources has become one of the most important global issues.
sayyad asghari +4 more
doaj
Channel Activity Remote Sensing Retrieval Model: A Case Study of the Lower Yellow River
Meandering channel migration is a widespread phenomenon in rivers all around the world. Channel activity, which reflects the rate of change of a meandering channel, is calculated by averaging lateral channel migration.
Taixia Wu +4 more
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The Photochemical Reflectance Index (PRI) as a water-stress index
Measurements of leaf reflectance in two narrow wavelength bands centred around 531 and 570 nm were carried out during withering of two contrasting functional and structural plant types: Chenopodium quinoa (Willd.) and Arbutus unedo (L.). The Photochemical Reflectance Index (PRI)=( R 531 - R 570 )/ ( R 531 + R 570 ) was calculated.
Thénot, Franck +2 more
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Salmonellae as an Index of Pollution of Surface Waters [PDF]
Screening enrichments of surface water specimens by means of a polyvalent fluorescent antibody reagent for the salmonellae yielded approximately 60% more positive specimens than was obtained by cultural procedures. It is not known what fraction of the excess of fluorescent antibody-positive over culturally positive specimens represents ...
W B, Cherry +5 more
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Due to the importance of coastline detection in coastal studies, different methods have been developed in recent decades in accordance with the evolution of measuring techniques such as remote sensing. This work proposes an automatic methodology with new
Sandra Paola Viaña-Borja +1 more
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