نتایج جستجو برای: groundwater inventories

تعداد نتایج: 34108  

2012
Ewan Dunbar William Idsardi

The acquisition of phonological inventories is a subject which has been studied by both linguists and psychologists, and rightly so—there is no question from the point of view of the theoretician studying universal grammar that the path from the initial state to the adult state is of interest, and there is no question from the developmental psychologist’s point of view that the child’s phonolog...

2007
Diana McCarthy

There has been a surge of interest in Computational Linguistics in word sense disambiguation (WSD). A major catalyst has been the SENSEVAL evaluation exercises which have provided standard datasets for the field over the past decade. Whilst researchers believe that WSD will ultimately prove useful for applications which need some degree of semantic interpretation, the jury is still out on this ...

2002
Dennis Nelson

It is commonly believed that the composition of groundwater does not change naturally. So if a change is recognized through taste and/or odor, many may think that something bad has happened. Perhaps the aquifer has become contaminated, or something is wrong with the well. However, a common cause of changes in water quality is through natural variations within the aquifer. What gives groundwater...

2014
Philip G. Brodrick Jacob G. Englander

There has been increased scrutiny in understanding the anthropogenic sources for methane emissions due to methane’s potency as a greenhouse gas [2]. There are two approaches for studying of methane emissions, emissions inventories (or ‘bottom up’ studies), and remote measurements of methane fluxes (or ‘top down’ studies). Emissions inventories calculate the leakage rates for fugitive methane ov...

2003
Don Hunter

INTRODUCTION Groundwater plays an important part in many regolith processes (chemical weathering, solute dispersion, etc.), but collecting groundwater data usually requires drilling that can be: a) expensive analyses for porosity, permeability, etc in addition to drilling costs; b) problematic rig availability and access to remote sites; c) under-sampled entire groundwater regimes characterised...

2012
Carolyn Ball Jonathan B. Martin

Water is one of our most important resources. Both surface water and groundwater are used by humans for drinking, irrigation, transportation, entertainment, and are a major service for ecosystems. Almost all surface water features, such as streams, rivers, and lakes, interact with groundwater by exchanging water between these two reservoirs. Surface water can become polluted depending on land u...

Journal: :Ground water 2012
Yung-Chia Chiu Tracy Nishikawa Peter Martin

Hi-Desert Water District (HDWD), the primary water-management agency in the Warren Groundwater Basin, California, plans to construct a waste water treatment plant to reduce future septic-tank effluent from reaching the groundwater system. The treated waste water will be reclaimed by recharging the groundwater basin via recharge ponds as part of a larger conjunctive-use strategy. HDWD wishes to ...

2012
Fardin Boustani

Groundwater resources in Arsanjan plain provide water for agriculture, industry, and human consumption. Continued agricultural development in this area needs to additional groundwater resources for, particularly during of drought periods, and effects on the quantity and quality of ground water available. The purpose of this study is to evaluate water level changes in the aquifer of Arsanjan pla...

2015
Ping Li Yanhong Wang Xinyue Dai Rui Zhang Zhou Jiang Dawei Jiang Shang Wang Hongchen Jiang Yanxin Wang Hailiang Dong

A survey was carried out on the microbial community of 20 groundwater samples (4 low and 16 high arsenic groundwater) and 19 sediments from three boreholes (two high arsenic and one low arsenic boreholes) in a high arsenic groundwater system located in Hetao Basin, Inner Mongolia, using the 454 pyrosequencing approach. A total of 233,704 sequence reads were obtained and classified into 12-267 o...

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