搜索结果: 46-60 共查到“海洋科学 system”相关记录155条 . 查询时间(0.237 秒)
Discharge of dissolved black carbon from a fire-affected intertidal system
Discharge of dissolved black carbon from a fire-affected intertidal system
font style='font-size:12px;'>
2014/4/4
We report substantial tidal fluxes of dissolved black carbon (DBC) in a fire-affected marsh in the northern Gulf of Mexico. DBC was molecularly determined as benzenepolycarboxylic acids in a tidal cre...
Nutrient dynamics and biological consumption in a large continental shelf system under the influence of both a river plume and coastal upwelling
Nutrient dynamics biological consumption large continental shelf system influence of both a river plume coastal upwelling
font style='font-size:12px;'>
2014/4/4
We examined the dynamics of dissolved inorganic nitrogen (DIN, nitrate + nitrite), dissolved inorganic phosphorus (DIP), and silicate (Si(OH)4) in the northern shelf of the South China Sea in summer, ...
Floodplain influence on dissolved organic matter composition and export from the Mississippi–Atchafalaya River system to the Gulf of Mexico
Floodplain on dissolved organic matter composition export from the Mississippi Atchafalaya River system to the Gulf of Mexico
font style='font-size:12px;'>
2014/4/3
Comparisons of the concentrations and compositionsof dissolved organic matter (DOM) between the lower Mississippi River (MR) and its distributary, the Atchafalaya River (AR), indicated a strong influe...
Nutrient dynamics and biological consumption in a large continental shelf system under the influence of both a river plume and coastal upwelling
Nutrient dynamics biological consumption a large continental shelf system the influence of both a river plume coastal upwelling
font style='font-size:12px;'>
2014/4/2
We examined the dynamics of dissolved inorganic nitrogen (DIN, nitrate+nitrite), dissolved inorganic phosphorus (DIP), and silicate (Si(OH)4) in the northern shelf of the South China Sea in summer, wh...
Sedimentary phosphorus dynamics and the evolution of bottom-water hypoxia: A coupled benthic–pelagic model of a coastal system
Sedimentary phosphorus dynamics a coastal system
font style='font-size:12px;'>
2014/4/8
The present study examines oxygen and phosphorus dynamics at a seasonally hypoxic site in the Arkona basin
of the Baltic Sea. A coupled benthic–pelagic reactive-transport model is used to describe th...
Analysis of Properties of Thrust Bearing in Ship Propulsion System
thrust bearing thrust pad lubrication properties ship propulsion shaft geometrical factors
font style='font-size:12px;'>
2011/9/9
Thrust bearing is a key component of the propulsion system of a ship. It transfers the propulsive forces from the propeller to the ship’s hull, allowing the propeller to push the ship ahead. The perfo...
Local genetic adaptation to grazing pressure of the green algaDesmodesmus armatusin a strongly connected pond system
Local genetic adaptation grazing pressure the green alga Desmo desmus armatusin strongly connected pond system
font style='font-size:12px;'>
2014/4/17
Dispersal potentially homogenizes genetic variation among populationsand thus may prevent local genetic adaptation. If selection gradients are strong and the selection responseefficient, however, loca...
Nutrient inputs to the coastal ocean from submarine groundwater discharge in a groundwater-dominated system: Relation to land use (Kona coast, Hawaii, U.S.A.)
Nutrient inputs the coastal ocean submarine groundwater discharge in a groundwater-dominated system Relation to land use
font style='font-size:12px;'>
2014/4/17
We evaluated the magnitude and composition (in terms of salinity,223Ra and224 Ra activity, and nutrient concentrations) of submarine groundwater discharge (SGD) fluxes at 11 sites on the Kona coast of...
Temporal and spatial variability in the cycling of nitrogen within a constructed wetland: A whole-system stable-isotope-addition experiment
Temporal spatial variability in the cycling of nitrogen a constructed wetland A whole-system stable-isotope-addition experiment
font style='font-size:12px;'>
2014/4/17
Constructed wetlands attenuate effluent nutrients, are hydrodynamically well defined, and are a useful proxy for the study of nitrogen (N) transformation in eutrophic natural systems. A whole-system s...
Riverine export and the effects of circulation on dissolved organic carbon in the Hudson Bay system, Canada
Riverine export the effects of circulation dissolved organic carbon in the Hudson Bay system Canada
font style='font-size:12px;'>
2014/4/16
The distribution of dissolved organic carbon (DOC) in Hudson Bay (HB), Foxe Basin (FB), and Hudson Strait(HS) was examined during 01–14 August 2003. The HB system displayed relatively high DOC concent...
Ocean acidification hot spots: Spatiotemporal dynamics of the seawater CO2 system of eastern Pacific coral reefs
Ocean acidification hot spots Spatiotemporal dynamics the seawater CO2 system eastern Pacific coral reefs
font style='font-size:12px;'>
2014/4/16
Seawater CO2system dynamics were assessed from eastern Pacific reef sites in Panama ′ over 5 consecutive years(2003–2008) and twice in the Gala ′ pagos Islands (2003 and 2009). The seawater CO2system ...
Power Flow Calculation Method of Large Shipboard Power System
power flow method node voltage method asynchronous motor transformer
font style='font-size:12px;'>
2011/9/9
The effect of line voltage drop is considered larger on loads, especially on asynchronous motor, transformers and other non-linear load parameters in power system of large ships. A novel power flow me...
The Effect of Hydrostatic Pressure Fields on the Dispersion Characteristics of Fluid-shell Coupled System
hydrostatic pressure dispersion fluid-shell coupled system wave propagation
font style='font-size:12px;'>
2011/9/9
The effect of hydrostatic pressure on the vibration dispersion characteristics of fluid-shell coupled structures was studied. Both fluid-loaded cylindrical shells and fluid-filled cylindrical shells w...
H∞ Robust Fault-Tolerant Controller Design for an Autonomous Underwater Vehicle’s Navigation Control System
AUV navigation control robust H∞ fault-tolerant control gain variations LMI
font style='font-size:12px;'>
2011/9/9
In order to improve the security and reliability for autonomous underwater vehicle (AUV) navigation, an H∞ robust fault-tolerant controller was designed after analyzing variations in state-feedback ga...
Modeling and Assessing a New Warship Maintenance System
capability assessment planning optimization heuristic regulation warship maintenance system
font style='font-size:12px;'>
2011/9/9
The authors developed a prototype of a warship maintenance system. The process started by defining the maintenance requirements of warship equipment. Next, a planning scheme was development for a main...