نتایج جستجو برای: diversions

تعداد نتایج: 529  

2011
D. W. BAKER B. P. BLEDSOE C. M. ALBANO N. L. POFF

Reduced streamflow via flow diversion has the potential to limit the sediment-transport capacity of downstream channels and lead to accumulation of fine sediments and habitat degradation. To investigate, we examined the effects of variable levels of flow diversion on fine-sediment deposition, hydraulic conditions and geomorphic alteration. Our study consisted of a detailed field analysis pairin...

2013
N LeRoy Poff John H Matthews

Human modification of the global hydrologic cycle through the building and operation of hundreds of thousands of dams and diversions has significantly altered fluvial processes, leading to impairment of river ecosystem function and biodiversity loss worldwide. The concept of environmental flows (e-flows) emerged to mitigate the undesirable hydrological impacts of dams and water diversions, in o...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2012
Bridget R Scanlon Claudia C Faunt Laurent Longuevergne Robert C Reedy William M Alley Virginia L McGuire Peter B McMahon

Aquifer overexploitation could significantly impact crop production in the United States because 60% of irrigation relies on groundwater. Groundwater depletion in the irrigated High Plains and California Central Valley accounts for ~50% of groundwater depletion in the United States since 1900. A newly developed High Plains recharge map shows that high recharge in the northern High Plains result...

2016
Claudio Di Ciccio Han van der Aa Cristina Cabanillas Jan Mendling Johannes Prescher

Timely identifying flight diversions is a crucial aspect of efficient multi-modal transportation. When an airplane diverts, logistics providers must promptly adapt their transportation plans in order to ensure proper delivery despite such an unexpected event. In practice, the different parties in a logistics chain do not exchange real-time information related to flights. This calls for a means ...

2009
Francis Heylighen

The scientific worldview is based on laws, which are supposed to be certain, objective, and independent of time and context. The narrative worldview found in literature, myth and religion, is based on stories, which relate the events experienced by a subject in a particular context with an uncertain outcome. This paper argues that the concept of “agent”, supported by the theories of evolution, ...

2017
Mihai Dumitrache Daniel Liviu Badescu Stefan Rascu Oana Denisa Balalau Bogdan Popescu Cristian Balalau Răzvan Valentin Scaunasu

The psychological impact on patients suffering radical cystectomy is twofold (both that of the underlying neoplastic disease and that measured by the quality of life subsequent to surgery) and increases as the urinary derivation technique is less physiological and affects more the local anatomy. Although there are numerous questionnaires that assess the quality of life of patients with cancer (...

Journal: :The Journal of legal studies 2014
John MacDonald Jeremy Arkes Nancy Nicosia Rosalie Liccardo Pacula

Blacks convicted of drug-related offenses in the U.S. have higher prison-commitment rates than Whites. Studies have been largely unsuccessful in explaining these disparities. This study uses administrative data from a random sample of individuals arrested for drug offenses in California to examine this issue. We use a decomposition model to estimate whether Black-White disparities in commitment...

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