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  • 1
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    Current and future trends in marine image annotation software (2016)
    PERGAMON-ELSEVIER SCIENCE LTD
    In:  EPIC3Progress In Oceanography, PERGAMON-ELSEVIER SCIENCE LTD, 149, pp. 106-120, ISSN: 0079-6611
    Details
    Publication Date: 2017-06-01
    Description: Given the need to describe, analyze and index large quantities of marine imagery data for exploration and monitoring activities, a range of specialized image annotation tools have been developed worldwide. Image annotation - the process of transposing objects or events represented in a video or still image to the semantic level, may involve human interactions and computer-assisted solutions. Marine image annotation software (MIAS) have enabled over 500 publications to date. We review the functioning, application trends and developments, by comparing general and advanced features of 23 different tools utilized in underwater image analysis. MIAS requiring human input are basically a graphical user interface, with a video player or image browser that recognizes a specific time code or image code, allowing to log events in a time-stamped (and/or geo-referenced) manner. MIAS differ from similar software by the capability of integrating data associated to video collection, the most simple being the position coordinates of the video recording platform. MIAS have three main characteristics: annotating events in real time, in posteriorly to annotation and interact with a database. These range from simple annotation interfaces, to full onboard data management systems, with a variety of toolboxes. Advanced packages allow to input and display of data from multiple sensors or multiple annotators via intranet or internet. Posterior human-mediated annotation often include tools for data display and image analysis, e.g. length, area, image segmentation, point count; and in a few cases the possibility of browsing and editing previous dive logs or to analyze annotation data. The interaction with a database allows the automatic integration of annotations from different surveys, repeated annotation and collaborative annotation of shared datasets, browsing and querying of data. Progress in the field of automated annotation is mostly in post processing, for stable platforms or still images. Integration into available MIAS is currently limited to semi-automated processes of pixel recognition through computer-vision modules that compile expert-based knowledge. Important topics aiding the choice of a specific software are outlined, the ideal software is discussed and future trends are presented.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 2
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    GEOTRACES Intercalibration of 230Th, 232Th, 231Pa and prospects for 10Be (2012)
    In:  EPIC3Limnology and Oceanography: Methods, 10, pp. 179-213
    Details
    Publication Date: 2019-07-16
    Description: Nineteen labs representing nine nations participated in the GEOTRACES intercalibration initiative that determined concentrations of 232Th, 230Th, 231Pa or 10Be in seawater, suspended particles or sediments. Results generally demonstrated good agreement among labs that analyzed marine sediments. Two sets of seawater samples, aliquots of particulate material filtered in situ, and/or aliquots of biogenic sediments were distributed to participating labs. Internal consistency among participating labs improved substantially between the first and second set of seawater samples. Contamination was a serious problem for 232Th. Standard Niskin™ bottles introduced no detectable contamination, whereas sample containers, reagents and labware were implicated as sources of contamination. No detectable differences in concentrations of dissolved 232Th, 230Th or 231Pa were observed among samples of seawater filtered through Nuclepore ™, Supor ™ or QMA™ (quartz) filters with pore diameters ranging between 0.4 and 1.0 μm. Isotope yield monitors equilibrate with dissolved Th in seawater on a time scale of much less than one day. Samples of filtered seawater acidified to a pH between 1.7 and 1.8 experienced no detectable loss of dissolved Th or Pa during storage for up to three years. The Bermuda Atlantic Time Series station will serve as a GEOTRACES baseline station for future intercalibration of 232Th and 230Th concentrations in seawater. Efforts to improve blanks and standard calibration are ongoing, as is the development of methods to determine concentrations of particulate nuclides, tests of different filtration methods, and an increasing awareness of the need to define protocols for reporting uncertainties.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , peerRev
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  • 3
    Electronic Resource
    Electronic Resource
    Vacuum ultraviolet absorption spectra of some chloroalkanes (1974)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 96 (1974), S. 1708-1712 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00813a011
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  • 4
    Electronic Resource
    Electronic Resource
    Vacuum ultraviolet absorption spectra of the chloromethanes (1973)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 95 (1973), S. 2129-2133 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00788a008
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  • 5
    Electronic Resource
    Electronic Resource
    A Mechanism for the Isomerization of Alkyl Pentaboranes (1963)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 85 (1963), S. 831-831 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00889a051
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  • 6
    Electronic Resource
    Electronic Resource
    Systematics in the Chemistry of the Boron Hydrides (1959)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 81 (1959), S. 3554-3560 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja01523a018
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  • 7
    Electronic Resource
    Electronic Resource
    Effect of N-Monosubstitution on the Basic Properties of Ethylenediamine1 (1952)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 74 (1952), S. 2931-2931 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja01131a510
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  • 8
    Electronic Resource
    Electronic Resource
    Preparation and Properties of N-Monosubstituted Ethylenediamine Complexes of Cobalt and Nickel1,2 (1952)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 74 (1952), S. 215-219 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja01121a055
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  • 9
    Electronic Resource
    Electronic Resource
    Relationships between soil penetration resistance and soil nematode burden in barley on Prince Edward Island (1996)
    Springer
    Biology and fertility of soils 24 (1996), S. 13-17 
    Details
    ISSN: 1432-0789
    Keywords: Key words Barley ; Cropping histories ; Parasitic nematodes ; Pratylenchus penetrans ; Root lesion nematode density ; Stunt nematode ; Tylenchorhynchus spp.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Fifty sloping fields of barley with different short-term cropping histories across Prince Edward Island were examined for variations in root-zone depth and the severity of soil parasitic nematodes as part of a wider study of relationships between cropping sequence, topographic position, soil physical conditions and crop performance. Root lesion nematode (Pratylenchus penetrans) density in the roots was significantly greater (13%) at foot slopes than at top slopes, and stunt nematode (Tylenchorhynchus spp.) was significantly greater (8%) at top slopes where the soil was drier. The density of stunt nematodes and root lesion nematodes in the soil was significantly greater (〉15%) under miscellaneous cereals-barley sequences than under potato-barley or hay-barley, attributable to level of carryover. Root lesion nematode density in the roots was significantly greater (12%) under hay-barley than either of the other two sequences. This nematode also showed a strong tendency to increase in number with increasing root-zone depth, and may be explained on the basis that increased root-zone depth provides increased host root mass (substrate). Stunt nematodes, on the other hand, increased with decreasing root-zone depth and may be explained by the known propensity of these organisms for drier, shallower soil conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01420214
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  • 10
    Electronic Resource
    Electronic Resource
    Relationships between soil penetration resistance and soif nematode burden in barley on Prince Edward Island (1997)
    Springer
    Biology and fertility of soils 24 (1997), S. 13-17 
    Details
    ISSN: 1432-0789
    Keywords: Barley ; Cropping histories ; Parasitic nematodes ; Pratylenchus penetrans ; Root lesion nematode density ; Stunt nematode ; Tylenchorhynchus spp
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Fifty sloping fields of barley with different short-term cropping histories across Prince Edward Island were examined for variations in root-zone depth and the severity of soil parasitic nematodes as part of a wider study of relationships between cropping sequence, topographic position, soil physical conditions and crop performance. Root lesion nematode (Pratylenchus penetrans) density in the roots was significantly greater (13%) at foot slopes than at top slopes, and stunt nematode (Tylenchorhynchus spp.) was significantly greater (8%) at top slopes where the soil was drier. The density of stunt nematodes and root lesion nematodes in the soil was significantly greater (〉15%) under miscellaneous cereals-barley sequences than under potato-barley or hay-barley, attributable to level of carryover. Root lesion nematode density in the roots was significantly greater (12%) under hay-barley than either of the other two sequences. This nematode also showed a strong tendency to increase in number with increasing root-zone depth, and may be explained on the basis that increased root-zone depth provides increased host root mass (substrate). Stunt nematodes, on the other hand, increased with decreasing root-zone depth and may be explained by the known propensity of these organisms for drier, shallower soil conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01420214
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