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Organic carbon burial efficiency in lake sediments controlled by oxygen exposure time and sediment source
Organic carbon burial efficiency lake sediments controlled oxygen exposure time sediment source
2014/4/17
We compared the burial efficiency of organic carbon (buried OC : depositedOC) in a diverse set of 27 different sediments from 11 lakes, focusing on the potential effects of organic matter source, oxyg...
Topographically Controlled Mesoscale Flow Anomalies on the Continental Shelf off Southern Sierra Leone and Liberia
current meters moored continental shelf Southern Sierra Leone Liberia
2009/2/13
Analyses of records from current meters moored on the continental shelf off Liberia and southern Sierra Leone during March and April of 1972 indicate that the flow at that time was dominated by low-fr...
Cross-Front Mixing and Frontal Upwelling in a Controlled Quasi-Permanent Density Front in the Gulf of St. Lawrence
Cross-Front Mixing Quasi-Permanent Density Front Frontal Upwelling
2009/2/6
CTD data obtained from three transects across a controlled quasi-permanent density front in the Gulf of St. Lawrence were analyzed for the purpose of investigating cross-front mixing, mechanisms for f...
Modeling of Hydraulically Controlled Exchange Flow in the Bosphorus Strait
Hydraulically Controlled Exchange Flow Bosphorus Strait
2008/12/27
Recent hydrographic observations obtained in the Bosphorus Strait illustrate several features of the flow that may be related with the internal hydraulics. A two-layer numerical model indicates that t...
Evidence for Hydraulically Controlled Outflow of Brackish Water from Holandsfjord, Norway
Brackish Water Norway Holandsfjord
2008/12/3
A large number of historical vertical salinity profiles from the deep Holandsfjord are analyzed to investigate properties of the brackish surface layer. It is found that the mean salinity and mean thi...
Deep Pacific Circulation Controlled by Vertical Diffusivity at the Lower Thermocline Depths
Deep Pacific Circulation Controlled Vertical Diffusivity Lower Thermocline Depths
2008/7/3
Deep Pacific circulation is investigated by using a World Ocean model with depth-dependent vertical diffusivity. Vertical diffusivity estimated from observations, 0.1 × 10−4 m2 s−1 for the...
Fuzzy-PID controlled lift feedback fin stabilizer
lift fin stabilizer lift force feedback control fuzzy control PID self-adjusting
2011/9/14
Conventional PID controllers are widely used in fin stabilizer control systems,but they have time-variations,nonlinearity,and uncertainty influencing their control effects.A lift feedback fuzzy-PID co...
Plastic phenotypes of antennule shape in Bosmina longirostris controlled by physical stimuli from predators
antennule shape Bosmina longirostris controlled
2014/4/22
Three antennule morphotypes in the small cladoceran Bosmina longirostris have been considered to be
hereditarily rigid phenotypes. However, we found that monoclonal populations of Bosmina collected f...
The effect of seawater CO2 concentration on growth of a natural phytoplankton assemblage in a controlled mesocosm experiment
seawater CO2 concentration natural phytoplankton assemblage controlled mesocosm experiment
2014/5/4
We examine the effects of seawater pCO2 concentration of 25, 41, and 76 kPa (250, 400, and 750 matm) on the growth rate of a natural assemblage of mixed phytoplankton obtained from a carefully control...
Is phosphorus retention in autochthonous lake sediments controlled by oxygen or phosphorus?
autochthonous lake sediments phosphorus retention
2014/4/30
Eutrophication of various lakes on the Swiss Plateau was targeted in the 1980s by reducing external nutrient
loading and installing aeration/oxygenation systems. For five eutrophic lakes, three...
Photosynthesis-controlled calcification in a hypersaline microbial mat
Photosynthesis-controlled calcifi cation hypersaline microbial mat
2014/5/13
We investigated the hypothesis that sulfate reduction rather than oxygenic photosynthesis promotes calcification
in a hypersaline microbial mat by increasing the ion concentration product: ICP ...