نتایج جستجو برای: saltwater concentration

تعداد نتایج: 382117  

Journal: :American journal of physiology. Regulatory, integrative and comparative physiology 2013
Yan Bai Nandakumar Selvaraj Kyle Petersen Richard Mahon William A Cronin Joseph White Peter R Brink Ki H Chon

Methods to predict onset of cardiopulmonary (CP) decompression sickness (DCS) would be of great benefit to clinicians caring for stricken divers. Principal dynamic mode (PDM) analysis of the electrocardiogram has been shown to provide accurate separation of the sympathetic and parasympathetic tone dynamics. Nine swine (Sus scrofa) underwent a 15-h saturation dive at 184 kPa (60 ft. of saltwater...

2017
Daniella Hirschfeld Kristina E. Hill

In metropolitan regions made up of multiple independent jurisdictions, adaptation to increased coastal flooding due to sea level rise requires coordinated strategic planning of the physical and organizational approaches to be adopted. Here, we explore a flexible method for estimating physical adaptation costs along the San Francisco Bay shoreline. Our goal is to identify uncertainties that can ...

2017
Maoqiu He Lanlan Cai Chuanlun Zhang Nianzhi Jiao Rui Zhang

Viruses are an abundant and active component of marine sediments and play a significant role in microbial ecology and biogeochemical cycling at local and global scales. To obtain a better understanding of the ecological characteristics of the viriobenthos, the abundance and morphology of viruses and the diversity and community structure of T4-type phages were systematically investigated in the ...

Journal: :Eos, Transactions American Geophysical Union 2012

Journal: :Horticulturae 2022

There is an increasing interest in the use of seawater horticulture. The objective this study was to evaluate Beta vulgaris var. cicla (Swiss chard) and its wild ancestor B. spp. maritima (sea beet) as potential crop species for hydroponics or aquaponics. Both were grown a floating system leaf production with recurrent harvests. nutrient solutions contained different concentrations nitrate (1 1...

Protection of water resources from contamination and detection of the contaminants and their treatments are among the essential issues in the management of water resources. In this work, the time-lapse electrical resistivity tomography (ERT) surveys were conducted along 7 longitudinal lines in the downstream of the Latian dam in Jajrood (Iran), in order to detect the contamination resulting fro...

Journal: :Anthropocene coasts 2022

Abstract Saltwater intrusion in estuaries has become a serious environmental problem, such as the Pearl River estuary (PRE). In this study, we used fully validated three-dimensional hydrodynamic model EFDC to numerically investigate saltwater PRE during dry season of 2007-2008. Based on measured salinity, an abnormally strong occurred Humen Channel February 2008. The twice month varying extents...

Journal: :Environmental microbiology 2007
Silvia A Pineiro O Colin Stine Ashvini Chauhan Susan R Steyert Richard Smith Henry N Williams

Halophilic Bacteriovorax (Bx), formerly known as the marine Bdellovibrio, are Gram-negative, predatory bacteria found in saltwater systems. To assess their genetic diversity and geographical occurrence, the small subunit rRNA (ssu-rRNA) gene sequences were analysed from 111 marine, salt lake and estuarine isolates recovered from 27 locations around the world. Phylogenetic analysis of these isol...

Journal: :Molecular ecology 2011
Jennifer A Moore David A Tallmon Julie Nielsen Sanjay Pyare

Understanding the impact of natural and anthropogenic landscape features on population connectivity is a major goal in evolutionary ecology and conservation. Discovery of dispersal barriers is important for predicting population responses to landscape and environmental changes, particularly for populations at geographic range margins. We used a landscape genetics approach to quantify the effect...

2011
María Pool Jesús Carrera

[1] The classic Ghyben‐Herzberg estimate of the depth of the freshwater‐saltwater interface together with the Dupuit approximation is a useful tool for developing analytical solutions to many seawater intrusion problems. On the basis of these assumptions, Strack (1976) developed a single‐potential theory to calculate critical pumping rates in a coastal pumping scenario. The sharp interface assu...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید