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(21 - 40 of 501)
Pages
- Title
- A FRAMEWORK FOR NON-INTRUSIVE OCEAN CURRENT TURBINE ROTOR BLADE IMBALANCE FAULT DETECTION.
- Creator
- Freeman, Brittny, Tang, Yufei, Florida Atlantic University, Department of Computer and Electrical Engineering and Computer Science, College of Engineering and Computer Science
- Abstract/Description
-
Ocean current turbines (OCT) convert the kinetic energy housed within the earth’s ocean currents into electricity. However, due to the harsh environmental conditions that these turbines operate in, their system performance naturally degrades over time. This degradation correlates to high operation and maintenance (O&M) costs, which necessitates the need for robust condition monitoring and fault detection (CMFD). Unfortunately, OCT operational data is not publicly available in large and/or...
Show moreOcean current turbines (OCT) convert the kinetic energy housed within the earth’s ocean currents into electricity. However, due to the harsh environmental conditions that these turbines operate in, their system performance naturally degrades over time. This degradation correlates to high operation and maintenance (O&M) costs, which necessitates the need for robust condition monitoring and fault detection (CMFD). Unfortunately, OCT operational data is not publicly available in large and/or diverse enough quantities to develop such frameworks. Therefore, from an industry-wide perspective, the technologies needed to harvest this energy source are still in their infancy.
Show less - Date Issued
- 2022
- PURL
- http://purl.flvc.org/fau/fd/FA00014094
- Subject Headings
- Marine turbines, Marine turbines--Blades
- Format
- Document (PDF)
- Title
- Distribution, abundance, behavior and metabolism of Periphylla periphylla, a mesopelagic coronate medusa in a Norwegian fjord.
- Creator
- Youngbluth, Marsh J., Bamstedt, Ulf
- Date Issued
- 2001
- PURL
- http://purl.flvc.org/FCLA/DT/2783234
- Subject Headings
- Jellyfishes, Marine zooplankton, Nematocysts
- Format
- Document (PDF)
- Title
- Marine fish culture.
- Creator
- Tucker, John W., Jr., Harbor Branch Oceanographic Institute
- Date Issued
- 1998
- PURL
- http://purl.flvc.org/fau/fd/FA00007351
- Subject Headings
- Marine fishes, Fish culture
- Format
- Document (PDF)
- Title
- Growth and survival of juvenile queen conch Strombus gigas fed artificial diets containing varying levels of digestible protein and energy.
- Creator
- Garr, Amber L., Acosta-Salmón, Héctor, Riche, Marty A., Davis, Megan, Capo, Thomas R., Haley, David, Tracy, Patrick
- Date Issued
- 2011
- PURL
- http://purl.flvc.org/FCLA/DT/3343846
- Subject Headings
- Queen conch, Marine aquaculture
- Format
- Document (PDF)
- Title
- Transparent animals.
- Creator
- Johnsen, Sonke, Harbor Branch Oceanographic Institute
- Date Issued
- 2000
- PURL
- http://purl.flvc.org/fau/fd/FA00007156
- Subject Headings
- Transparency, Transparent, Marine animals
- Format
- Document (PDF)
- Title
- Agar yield, quality and standing crop biomass of Gelidium serrulatum, Gelidium floridanum, and Pterocladia capillacea in Venezuela.
- Creator
- Lemus, Andres, Bird, Kimon T., Kapraun, D. Fritz, Koehn, F. E., Harbor Branch Oceanographic Institute
- Date Issued
- 1991
- PURL
- http://purl.flvc.org/FCLA/DT/3355148
- Subject Headings
- Seaweed, Marine algae, Agar
- Format
- Document (PDF)
- Title
- Fistularin 3 and 11-Ketofistularin 3. Feline leukemia virus active bromotyrosine metabolites from the marine sponge Aplysina archeri.
- Creator
- Gunasekera, Sarath P., Cross, S. S., Harbor Branch Oceanographic Institute
- Date Issued
- 1992
- PURL
- http://purl.flvc.org/FCLA/DT/3332993
- Subject Headings
- Sponges, Tyrosine, Marine metabolites
- Format
- Document (PDF)
- Title
- Aquaria: needs and aspirations.
- Creator
- Goldizen, V. C., Harbor Branch Oceanographic Institute
- Date Issued
- 1973
- PURL
- http://purl.flvc.org/FCLA/DT/3352177
- Subject Headings
- Aquariums, Marine aquariums
- Format
- Document (PDF)
- Title
- The influence of episodic weather events on tidal residual currents: A case study at Sebastian Inlet, Florida.
- Creator
- Liu, James T., Harbor Branch Oceanographic Institute
- Date Issued
- 1992
- PURL
- http://purl.flvc.org/FCLA/DT/3174862
- Subject Headings
- Tidal currents, Marine sediments
- Format
- Document (PDF)
- Title
- 3-amino-1-(2-aminoimidazolyl)-prop-i-ene from the marine sponges Teichaxinella morchella and Ptilocaulis walpersi.
- Creator
- Wright, Amy E., Chiles, S. A., Cross, S. S.
- Date Issued
- 1991
- PURL
- http://purl.flvc.org/FCLA/DT/3332990
- Subject Headings
- Sponges, Marine metabolites, Pyrroles
- Format
- Document (PDF)
- Title
- Marine natural products.
- Creator
- Pomponi, Shirley A., Wright, Amy E., Reed, John K., McCarthy, Peter J.
- Date Issued
- 1999
- PURL
- http://purl.flvc.org/fau/fd/FA00007503
- Subject Headings
- Marine natural products
- Format
- Document (PDF)
- Title
- Phytoplankton.
- Creator
- Víquez, R., Hargraves, Paul E.
- Date Issued
- 2009
- PURL
- http://purl.flvc.org/FCLA/DT/3174241
- Subject Headings
- Marine phytoplankton, Phytoplankton, Biodiversity
- Format
- Document (PDF)
- Title
- Does allometric growth in juvenile marine turtles have survival benefits? A morphological test with a gape-limited predator.
- Creator
- Scholl, Joshua, Salmon, Michael
- Date Issued
- 2013-04-05
- PURL
- http://purl.flvc.org/fcla/dt/3361191
- Subject Headings
- Allometry, Marine turtles, Predators
- Format
- Document (PDF)
- Title
- Novel compounds isolated from the marine sponge Clathria sp.
- Creator
- Rueda de Leon, Rolando, Gupta, Prasoon, West, Lyndon, Graduate College
- Date Issued
- 2011-04-08
- PURL
- http://purl.flvc.org/fcla/dt/3164772
- Subject Headings
- Sponges, Stereochemistry, Marine pharmacology
- Format
- Document (PDF)
- Title
- Aquaculture of Pseudopterogorgia elisabethae and induction of pseudopterosins.
- Creator
- Thornton, Renee S., Florida Atlantic University, Kerr, Russell G.
- Abstract/Description
-
The pseudopterosins are a class of diterpene glycosides isolated from the Caribbean sea whip, Pseudopterogorgia elisabethae. Pseudopterosins A-D possess potent anti-inflammatory and analgesic properties (ED50 ca. 3.0 mg/kg). There is a large demand in the pharmaceutical and cosmetic industries for pseudopterosin derivatives and presently, the only source of these chemicals is from wild-collected gorgonians. Preliminary experiments were performed to develop a reliable, cost-effective...
Show moreThe pseudopterosins are a class of diterpene glycosides isolated from the Caribbean sea whip, Pseudopterogorgia elisabethae. Pseudopterosins A-D possess potent anti-inflammatory and analgesic properties (ED50 ca. 3.0 mg/kg). There is a large demand in the pharmaceutical and cosmetic industries for pseudopterosin derivatives and presently, the only source of these chemicals is from wild-collected gorgonians. Preliminary experiments were performed to develop a reliable, cost-effective production method of the pseudopterosins in order to avoid large-scale harvesting. We exposed the gorgonians to various forms of "stress" in an attempt to increase the amount of pseudopterosins produced. We have also evaluated the feasibility of raising Pseudopterogorgia elisabethae in an aquaculture setting by studying their growth rates in different environments. Our studies indicate that aquaculture used with some simple induction methods can allow for the commercialization of this important biochemical resource.
Show less - Date Issued
- 2000
- PURL
- http://purl.flvc.org/fcla/dt/12727
- Subject Headings
- Alcyonacea, Aquaculture, Marine pharmacology
- Format
- Document (PDF)
- Title
- Soluble NAD- and NADP-Linked Oxidoreductases in Filamentous Marine Fungi: Adaptation of Fluorescent Screening Technique and Development of Supporting Methodology.
- Creator
- Rodrigues, Joanna, Sguros, Peter L., Florida Atlantic University
- Abstract/Description
-
The metabolism of filamentous marine fungi has received little attention either from the specific or comparative standpoints. As part of an overall investigation of the carbon metabolism of this heterogeneous group of Ascomycetes and Deuteromycetes, a rapid, semi-quantitative method has been adapted to the screening of their NAD- and NADP-linked dehydrogenases. The Ascomycete, Halosphaeria mediosetigera (700), and Deteromycetes, Culcitalna achraspora (230) and Humicola alopallonella (710),...
Show moreThe metabolism of filamentous marine fungi has received little attention either from the specific or comparative standpoints. As part of an overall investigation of the carbon metabolism of this heterogeneous group of Ascomycetes and Deuteromycetes, a rapid, semi-quantitative method has been adapted to the screening of their NAD- and NADP-linked dehydrogenases. The Ascomycete, Halosphaeria mediosetigera (700), and Deteromycetes, Culcitalna achraspora (230) and Humicola alopallonella (710), were grown in a semi-synthetic, artificial sea water broth in submerged culture, from quantitatively standardized inocula, and harvested in the linear growth phase when respirometric data indicated maximum endogenous oxygen uptakes. Based upon dry weight, culture 700 gave QO2 maxima of 9.3-14.6 at 72 hr growth, while culture 710 values were 12.4-16.2 for the same time; culture 230 gave values of 13.8-18.4 at 96 hr growth. Harvested mycelia were washed, quantitated and subjected to sonic disintegration at 21 kHz for 20 minutes at 5-10 C in pH 7.0 phosphate buffer containing cysteine. Debris was removed by centrifuging at 12,000 X g at 4 C for 30 minutes and the resulting turbid, yellow supernatant fraction clarified by two successive 2 hr centrifugings at 4 C and 41,000 X g. Whatman #1 filter paper sheets, divided into 1 cm. squares, were pretreated with pH 8.0 Tris buffer containing MgCl2, and air-dried. The papers were spotted at the grid intersections with appropriate substrates. Cell extracts were mixed with NAD or NADP in Tris and the mixture superimposed upon the substrates. Within 2 hr the papers were viewed under ultraviolet light at 3600 A for spot fluorescence from the reduced coenzymes. In all extracts (5-10 mg protein per ml), dehydrogenases were indicated for glucose, glucose-6-phosphate, gluconate, 6-phosphogluconate, isocitrate and malate. Less definite were indications of oxidoreductases for galactose, lactate and glycerol. It is therefore indicated that these filamentous marine fungi utilize glucose carbon via the hexose monophosphate pathway and the tricarboxylic acid cycle.
Show less - Date Issued
- 1970
- PURL
- http://purl.flvc.org/fau/fd/FA00000821
- Subject Headings
- Marine fungi, Dehydrogenases
- Format
- Document (PDF)
- Title
- Senescence- and death-related alterations of chlorophylls and carotenoids in marine phytoplankton.
- Creator
- Liu, Lei, Florida Atlantic University, Louda, J. William
- Abstract/Description
-
Fresh and aged unispecific samples have been analyzed using IP-RPHPLC and PDA in order to reveal the chlorophylls and carotenoids alterations during senescence and death. Aging studies showed that cyanobacterial chlorophyll- a was destroyed faster than carotenoids in room oxic conditions. The reverse was found for the other eukaryotic species. Species with high chlorophyllase activity produced phytol free chlorophyll derivatives during death. The rate of chlorophyll-a destruction was; room...
Show moreFresh and aged unispecific samples have been analyzed using IP-RPHPLC and PDA in order to reveal the chlorophylls and carotenoids alterations during senescence and death. Aging studies showed that cyanobacterial chlorophyll- a was destroyed faster than carotenoids in room oxic conditions. The reverse was found for the other eukaryotic species. Species with high chlorophyllase activity produced phytol free chlorophyll derivatives during death. The rate of chlorophyll-a destruction was; room oxic > room anoxic > cold anoxic. Pyropheophorbide-a was often the final product of type-I chlorophyll-a degradation. The conversion from fucoxanthin to fucoxanthinol was observed. Chlorophyll-c was found to be destroyed faster than chlorophyll-a. The quantitative relationship of certain "biomarker" pigments (e.g. fucoxanthin, zeaxanthin) to chlorophyll-a was found not to change significantly during the first 1--2 months senescence-death scenarios. This aids the field of chemotaxonomy in that valid estimations may still be made when phytoplankton populations contain senescent individuals.
Show less - Date Issued
- 2000
- PURL
- http://purl.flvc.org/fcla/dt/12689
- Subject Headings
- Marine phytoplankton, Carotenoids, Chlorophyll
- Format
- Document (PDF)
- Title
- SHIP MOTION PREDICTION USING AUTO REGRESSIVE MOVING AVERAGE METHOD (NAVAL ARCHITECTURE, OFFSHORE TECHNOLOGY, DYNAMIC POSITIONING).
- Creator
- CHANDRASEKHARAN, CHANDRAMOHAN., Florida Atlantic University, Lin, Newman K.
- Abstract/Description
-
The time series method of Auto Regressive Moving Average (ARMA) is applied to the problem of real time ship motion prediction. The theory of Scalar input Scalar output ARMA (n, n-1) model and the same extended to multiple series as vector, ARMAV model have been concisely presented. The field experimental procedure for roll measurement of vessel at sea and barge model test procedure for heave and pitch measurements are discussed. The time series data of roll is analysed as a scalar ARMA (n, n...
Show moreThe time series method of Auto Regressive Moving Average (ARMA) is applied to the problem of real time ship motion prediction. The theory of Scalar input Scalar output ARMA (n, n-1) model and the same extended to multiple series as vector, ARMAV model have been concisely presented. The field experimental procedure for roll measurement of vessel at sea and barge model test procedure for heave and pitch measurements are discussed. The time series data of roll is analysed as a scalar ARMA (n, n-1) model and the results of prediction are presented. The model test data of heave, pitch and wave were analysed as ARMAV (n,n-1) vector model and the results are presented. The model test and experimental results demonstrate the feasibility of ARMA modeling procedure as a valuable tool in the area of real time ship motion prediction.
Show less - Date Issued
- 1985
- PURL
- http://purl.flvc.org/fcla/dt/14246
- Subject Headings
- Motion study, Marine engineering
- Format
- Document (PDF)
- Title
- A SHOTGUN METAGENOMIC APPROACH TO THE BIOSYNTHESIS OF MARINE NATURAL PRODUCTS.
- Creator
- Miller-Xavier, René Kathleen, Mincer, Tracy, Florida Atlantic University, Department of Biological Sciences, Charles E. Schmidt College of Science
- Abstract/Description
-
Genomics has been revolutionized by improved sequencing technologies, allowing for the detailed exploration of microbial dark matter and complex microscopic ecosystems. The bottleneck in genomic workflows has shifted from high-throughput sequencing to data analysis. This dissertation developed the Florida Center for Coastal and Human Health Shotgun Metagenomics Workflow (FCHsm) that is easy to use and tailor to unique datasets. This work acts as the beta-testing for the workflow, as it...
Show moreGenomics has been revolutionized by improved sequencing technologies, allowing for the detailed exploration of microbial dark matter and complex microscopic ecosystems. The bottleneck in genomic workflows has shifted from high-throughput sequencing to data analysis. This dissertation developed the Florida Center for Coastal and Human Health Shotgun Metagenomics Workflow (FCHsm) that is easy to use and tailor to unique datasets. This work acts as the beta-testing for the workflow, as it analyzes disparate biomes (environmental and host microbiomes) at varying sequencing depths (shallow and deep). FCHsm was used to resolve molecular dynamics and mine trans-kingdom metagenomes for secondary metabolic biosynthetic gene clusters (BGCs) in two marine environments— Indian River Lagoon toxic harmful algal blooms (IRL HABs) and the medicinal Leiodermatium sponge holobiont. First, an in silico mock dataset was analyzed to benchmark the FCHsm workflow. Sourmash, coupled with the Genome Taxonomy Database, outcompeted the other taxonomic profilers by accurately predicting the size of the mock metagenome (450 genomes) and recalling the highest number of species (82 %) and strains (44 %). Nonpareil calculated the sequencing effort needed for 100 % coverage for all the datasets and correctly estimated the 75 Gbp of sequencing needed for almost 100 % coverage of the mock metagenomes (99.5 %). Next, the trans-kingdom metagenomes of the IRL were explored, and potential HAB biomarkers were identified.
Show less - Date Issued
- 2023
- PURL
- http://purl.flvc.org/fau/fd/FA00014186
- Subject Headings
- Marine natural products, Metagenomics
- Format
- Document (PDF)
- Title
- Dysidiolide: a novel protein phosphatase inhibitor from the Caribbean sponge Dysidea etheria de Laubenfels.
- Creator
- Gunasekera, Sarath P., McCarthy, Peter J., Kelly-Borges, M., Lobkovsky, E., Clardy, J.
- Date Issued
- 1996
- PURL
- http://purl.flvc.org/FCLA/DT/3319096
- Subject Headings
- Sponges --Research, Dysidiolide, Marine metabolites, Marine natural products, Protein phosphatases
- Format
- Document (PDF)
