نتایج جستجو برای: aerated lagoon
تعداد نتایج: 7153 فیلتر نتایج به سال:
Bivalve larvae and hydrographic parameters were sampled over a range of spatio-temporal scales in a deep atoll lagoon. Bivalve larvae abundances were very high throughout the year: 18,550 m(-3) in average. Larvae were (i) concentrated at mid-depth with nocturnal ascent and diurnal descent, (ii) heterogeneously dispersed at the lagoon scale, (iii) subject to day-to-day variation in abundance and...
anzali lagoon is the most important aquatic ecosystems of northern iran. this lagoon is very important in terms of environmental and economic. deforestation in the anzali lagoon is the most important environmental concerns of researchers. one of the polluting factors anzali lagoon , river pollution is the entrance to the lagoon. by examining the landfill in rasht , how to manage latex was inves...
ABSTRACT Background and Objectives: Hepatitis A virus (HAV) enters sewage through the stool of infected patients and contaminates freshwater and seawater. The aim of present study was quantitative molecular detection of HAV in raw and treated urban sewage samples from Isfahan, center of Iran. &nbs...
RATIONALE Tidal volume and plateau pressure limitation decreases mortality in acute respiratory distress syndrome. Computed tomography demonstrated a small, normally aerated compartment on the top of poorly aerated and nonaerated compartments that may be hyperinflated by tidal inflation. OBJECTIVES We hypothesized that despite tidal volume and plateau pressure limitation, patients with a larg...
INTRODUCTION Previous randomized trials failed to demonstrate a decrease in mortality of patients with acute lung injury treated by exogenous surfactant. The aim of this prospective randomized study was to evaluate the effects of exogenous porcine-derived surfactant on pulmonary reaeration and lung tissue in patients with acute lung injury and acute respiratory distress syndrome (ALI/ARDS). M...
Many modern biologists see anything before Darwin as prehistory: research riddled with misunderstandings and errors. But this view misses an extraordinary range of work over centuries with much of value and insight. So a new look at the biological work of Aristotle, coming from a Greek island almost 2,500 years ago, provides a fresh and fascinating reminder of ancient thinking. A new television...
Nitrogen removal from wastewater by an aerated subsurface-flow constructed wetland in cold climates.
The objective of this study was to assess the role of cyclic aeration, vegetation, and temperature on nitrogen removal by subsurface-flow engineered wetlands. Aeration was shown to enhance total nitrogen and ammonia removal and to enhance removal of carbonaceous biochemical oxygen demand, chemical oxygen demand, and phosphorus. Effluent ammonia and total nitrogen concentrations were significant...
Atmospheric concentrations and deposition fluxes of PCDD/F and PCB have been evaluated over a 1-year period in a Mediterranean coastal lagoon (Etang de Thau, France). Indicative PBDE air concentrations in the hot season are also reported in this work. ∑2,3,7,8-PCDD/Fs and ∑18PCBs (gas+particulate) air concentrations ranged from 67 to 1700 fg m(-3) and from 13 to 95 pg m(-3), respectively wherea...
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