The overall geochemical composition of natural-water regimes reflects the response to long-term interactions between water and surrounding environment in process its circulation. Their characteristics can reflect both aquatic ecological health tracer source, as well budget. In this study, Hulun Lake, a remote lake cold arid area China, was chosen order analyze characteristics, including major i...

for more than half a century isotopes have been employed as a powerful tool in studying various aspects of water resources in a largenumber of countries. however, in developing countries like iran the application of such techniques is in its infancy. the first research iniran was carried out in 1975 to identify the source of saline groundwaters in south iran, and the first national conference o...

Robit-Bata watershed, Upper Blue Nile basin, Ethiopia. Stable isotopes of water (Oxygen-18 and Deuterium) were used as tracers to estimate the contribution groundwater in shallow hillslope aquifers streamflow watershed. To assess spatiotemporal variability develop a hydrograph separation technique, we collected rainfall, groundwater, samples analyzed their δ18O δ2H isotopic compositions. The lo...

This study investigated the impact of purchase location on the stable isotope ratios of beverages by measuring the delta(2)H and delta(18)O values of bottled water, soda, beer, and tap water collected across the contiguous United States. Measured beverage delta(2)H and delta(18)O values generally fit the Global Meteoric Water Line (GMWL), suggesting region-of-origin information is recorded in b...

The intriguing notion of a Zerc-Knowledge Proof System has been introduced by Goldwasser, Micali and Rackoff [GMR] and its wide applicability has been demonstrated by Goldreich, Micali and Wigderson (GMWl]-[GMWZ]. Based on complexity theoretic assumptions, Zero-Knowledge Proof Systems exist, provided that (i) The prover and the verifier are allowed to talk back and forth. (ii) The verifier is a...

In studying the hydro-ecological conditions in northwestern Sichuan of southwestern China, an area at the edge of the Qinghai-Tibet Plateau, stream waters were extensively sampled and analyzed for the stable hydrogen and oxygen isotope ratios (  H and  18 O) which are often excellent indicators for a water body genesis and evolvement. The heavy isotopes of hydrogen and oxygen were found to b...

The Middle East is faced with a water shortage crisis due to its semiarid and arid climate. In this paper, precipitation as an important part of the cycle was evaluated in 43 stations across using stable isotope technique study parameters which influence content precipitation. First, stepwise regression model applied determine main geographical climatological factors affecting isotopes Secondly...

Abstract Porous and fractured aquifers exist in the area of Hurghada, Eastern Desert Egypt, whose recharge processes through common flash floods are not identified. Hydrochemical parameters, stable isotopes 18 O, 2 H tritium floodwater groundwater were applied subject to study. Additionally, He investigated deep wells faulted zone at Abu Shaar Plateau. 3 activity all sampled points lies below d...

Climate driven hydrologic variability has direct socio-economic impacts on local, regional and global scales. Particularly vulnerable is the region that lies within the boundaries of the East Asian monsoon, which is one of the most pronounced and influential phenomena of Earth’s climate system. People within the heavily populated Asian countries have adapted many aspects of their society to the...

The evaluation of groundwater environmental quality and the identification recharge sources are very important for utilization. In this study, hydrochemistry isotope analysis methods used to investigate hydrochemical processes in Zhanjiang City. results show that all samples were drawn on left global meteoric water line (GMWL: δD = 8δ18O + 10) local meteorological lines (LMWL1: 8.17δ18O 11.74 L...