搜索结果: 1-13 共查到“海洋科学 resources”相关记录13条 . 查询时间(0.507 秒)
DODS:Providing Direct Access to Distributed Research Data Resources
DODS Direct Access Distributed Data Resources
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2015/8/14
Many exciting advances in oceanography are occurring because of the data being acquired from newly developed instruments and observing systems. However, the volume and diversity of the data being gene...
Harnessing Museum Resources for the Census of Marine Life:The FISHNET Project
Museum Resources Census of Marine Life FISHNET Project
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2015/8/5
FISHNET is a distributed information system that seeks to provide data towards answering two fundamental questions regarding marine biodiversity: how many vouchered records exist for each species of f...
The Role of IOC in Promoting Cooperative Research on Marine Ecosystems and Living Marine Resources
Marine Ecosystems Living Marine Resources
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2015/7/8
This special issue of Oceanography is published in honor of the fiftieth anniversary of the Intergovernmental Oceanographic Commission (IOC). Established in 1960, IOC promotes international cooperatio...
Temperature, resources, and phytoplankton size structure in the ocean
Temperature resources phytoplankton size structure the ocean
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2014/4/4
We conducted a meta-analysis of temperature, phytoplankton size structure, and productivity in cold, temperate, and warm waters of the world's oceans. Our data set covers all combinations of temperatu...
Temperature, resources, and phytoplankton size structure in the ocean
Temperature resources phytoplankton size structure in the ocean
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2014/4/3
We conducted a meta-analysis of temperature, phytoplankton size structure, and productivity in cold,temperate, and warm waters of the world’s oceans. Our data set covers all combinations of temperatur...
Metabolism and resources of spherical colonies of Nostoc zetterstedtii
Metabolism resources Nostoc zetterstedtii
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2014/4/18
Constraints imposed by the spherical form and gelatinous matrix of centimeter-thick colonies of the
cyanobacterium Nostoc zetterstedtii on its functional properties were tested by examining the scali...
Spatial distribution of detrital resources determines the outcome of competition between bacteria and a facultative detritivorous worm
detrital resources determines competition between bacteria a facultative detritivorous worm
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2014/4/17
Macrobenthic deposit feeders and bacteria compete for the same detrital food resources. We hypothesize that
the spatial scale at which food is distributed in the sediment is an important factor deter...
Developing the Mineral Resources of the Seabed
Mineral Resources Seabed economic well-being
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2008/12/17
The world’s oceans have played a vital role in the development of
virtually every nation. They provide the transportation network that
binds us together through trade; they yield much of the food th...
Valuable mineral resources are widely distributed throughout the seabed. autonomous underwater vehicles (AUVs) are preferable to remotely-operated vehicles (ROVs) when probing for such mineral resources as the extensive exploration area makes it difficult to maintain contact with operators. AUVs depend on batteries, so their power consumption should be reduced to extend exploration time. Power for conventional marine instrument systems is incorporated in their waterproof sealing. External intermittent control of this power source until termination of exploration is challenging due to limitations imposed by the underwater environment. Thus, the AUV must have a power control system that can improve performance and maximize use of battery capacity. The authors developed such a power control system with a three-step algorithm. It automatically detects underwater operational states and can limit power, effectively decreasing power consumption by about 15%.
surface piercing propeller boundary element method hydrodynamic characteristics
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2011/9/13
Demand for high-speed marine vehicles (HSMVs) is high among both commercial and naval users. It is the duty of the marine vessel’s designer to provide a hull and propulsion system that diminishes drag...
International Symposium on Tectonics and Resources
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2007/8/21
Qingdao – China
July, Thursday 26- Sunday 29, 2007
2nd International Symposium on Continental Margin Tectonics
and Resources
Organized by Key Laboratory of Marine Geology & Environment, Institut...
Consumer growth linked to diet and RNA–P stoichiometry: Response of Bosmina to variation in riverine food resources
Consumer growth linked to diet RNA– P stoichiometry Bosmina to variation riverine food resources
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2014/5/4
Feeding experiments were performed with riverine Bosmina to investigate how their somatic growth rate responded to variation in food resources arising from changing hydrodynamic conditions. Experiment...
Reach-scale manipulations show invertebrate grazers depress algal resources in streams
Reach-scale manipulations show invertebrate grazers depress algal resources in streams
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2014/5/27
Experimental tools that enable manipulations of organisms at larger scales allow for comparisons of processes across multiple spatial scales and expand our ability to make predictions about ecological...
Nutritional quality of food resources for zooplankton (Daphnia) in a tidal freshwater system (Sacramento–San Joaquin River Delta)
Nutritional quality food resources zooplankton a tidal freshwater system
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2014/5/26
We examined the relative nutritional values of natural phytoplankton and particulate detritus for zooplankton growth in a detritus-rich environment. Seston was collected seasonally from four different...