نتایج جستجو برای: 2000 for aidoghmoush basin using mann
تعداد نتایج: 11453022 فیلتر نتایج به سال:
Spatial and temporal rainfall variability analysis at a basin scale is essential to understand water availability for sustainable resource management. This study investigated the spatial distribution trend in Tekeze river using daily data collected from 43 meteorological stations with records 1960 2019. Coefficient of variation, seasonality index (SI) were used evaluate monthly, seasonal annual...
some new water-soluble schiff base complexes of na2[m(5-so3-1,2-salophen)].nh2o; (5-so3-1,2-salophen = n,n’-bis(5-sulphosalicyliden)-1,2-phenylendiamine); na2[m(5-so3-2,3-salpyr)(h2o)n].2h2o; (5-so3-2,3-salpyr = n,n’-bis(5-sulphosalicyliden)-2,3-diaminopyridine); and na2[m(5-so3-3,4-salbenz)(h2o)n].nh2o; (5-so3-3,4-salbenz = n,n’-bis(5-sulphosalicyliden)-3,4-diaminobenzophenon); where m = cu, n...
The study presents investigations of the runoff from snow and ice, carried out in the high alpine basin of the Rhône river at Sion (3371 km2, 491 -4634 m a.s.l.). Using satellite remote sensing data, features like the snow coverage in the whole basin, the gradually decreasing snow coverage on glaciers and the area of exposed ice have been mapped. The periodical monitoring of the basin is based ...
Introduction The Danjiang River Basin has experienced significant alterations to its runoff patterns in recent years, primarily as a result of climate change and anthropogenic activities. Methods This study aims investigate these factors’ influence on the basin’s between 1960 2016 using Mann–Kendall (M-K) test Accumulative Anomaly Curve (AAC) assess abrupt characteristics runoff. Furthermore, e...
cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
abstract type-ii fuzzy logic has shown its superiority over traditional fuzzy logic when dealing with uncertainty. type-ii fuzzy logic controllers are however newer and more promising approaches that have been recently applied to various fields due to their significant contribution especially when the noise (as an important instance of uncertainty) emerges. during the design of type- i fuz...
Surface runoff from the Wei River basin, the largest tributary of the Yellow River in China, has dramatically decreased over last 51 years from 1958 to 2008. Climate change and human activities have been identified as the two main reasons for the decrease in runoff. The study period is split into two sub-periods (1958–1989 and 1990–2008) using the Mann–Kendall jump test. This study develops an ...
The consequences of climate change have challenged researchers to generate models and projections understand behavior under different scenarios. In Costa Rica, as in other countries, climate-change (CC) are essential make decisions about the management natural resources, mainly water. To change’s impact on hydraulic parameters such velocity, depth, river surface area, we studied Pejibaye basin,...
today, the route for economic development in most countries is the same as international open competitive economy. economic institutes well known that supportive public economy belonged on the past and they may compete in the global economy. it is obvious that if they have no competitive potency or not familiar with competition technique, they may be devastated. banking system aims to collect t...
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