نتایج جستجو برای: light and nutrients

تعداد نتایج: 16890661  

Journal: :Biogeosciences 2021

Abstract. While there is agreement that global warming over the 21st century likely to influence biological pump, Earth system models (ESMs) display significant divergence in their projections of future new production. This paper quantifies and interprets sensitivity projected changes production an idealized ocean biogeochemistry model. The model includes two tracers explicitly represent nutrie...

2012
Chunxiang Hu Brian A. Whitton

12.2 Biological Crusts of Arid Regions ............................. 346 12.2.1 Characteristic Species ................................................... 346 12.2.2 Taxonomic Problems in Describing Crust Cyanobacteria ...................................................... 347 12.2.3 Environmental Factors .................................................. 348 12.2.3.1 Light .......................

2012
Ekaterina E. Popova Andrew Yool Andrew C. Coward Frederic Dupont Clara Deal Scott Elliott Elizabeth Hunke Meibing Jin Mike Steele Jinlun Zhang

[1] As a part of Arctic Ocean Intercomparison Project, results from five coupled physical and biological ocean models were compared for the Arctic domain, defined here as north of 66.6°N. The global and regional (Arctic Ocean (AO)–only) models included in the intercomparison show similar features in terms of the distribution of present-day water column–integrated primary production and are broa...

Journal: :Journal of animal science 2012
P E Urriola H H Stein

The objective of this experiment was to test the hypothesis that differences in the digestibility of total dietary fiber among breeds of pigs is influenced by the type of fiber fed and also by the age of the pig. Five Meishan pigs (BW: 77.2 ± 15.2 kg; 5 mo old), 5 light Yorkshire pigs (BW: 80.1 ± 11.2 kg; 4 mo old), and 5 heavy Yorkshire pigs (BW: 102.1 ± 3.5 kg, 5 mo old) were surgically prepa...

Journal: :Journal of AOAC INTERNATIONAL 1991

Journal: :Evidence-Based Dentistry 2012

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1390

abstract ion selective electrodes (ises) are electrochemical sensors that respond selectivity to the activity of ionic species. an ion-selective electrode is an electrochemical device that uses a thin selective membrane or film as the recognition element, and is an electrochemical half-cell equivalent to other half-cells of the zeroth (inert metal in a redox electrolyte). in common methods o...

Journal: :Marine and Freshwater Research 2013

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