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  • 1
    Electronic Resource
    Electronic Resource
    Deep-tow survey in the KAIKO-Nankai cold seepage areas
    Amsterdam : Elsevier
    Earth and Planetary Science Letters 109 (1992), S. 347-354 
    Details
    ISSN: 0012-821X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0012-821X(92)90097-F
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Developmental and structural aspects of somatic embryos formed on medium containing 2,3,5-triiodobenzoic acid (1997)
    Springer
    Plant cell reports 16 (1997), S. 738-744 
    Details
    ISSN: 1432-203X
    Keywords: Key words Somatic embryogenesis ; Cotyledon morphology ; Panax ginseng ; Auxin transport inhibitor
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Cotyledon explants of ginseng (Panax ginseng C.A. Meyer) zygotic embryos produced somatic embryos at a high rate (68%) on medium without any growth regulators. Under this culture condition, apparent polar somatic embryogenesis occurred near the basal-excised portion of the cotyledons. When the cotyledon explants were cultured on medium containing 2,3,5-triiodobenzoic acid (TIBA), an auxin polar-transport inhibitor, the frequency of somatic embryo formation markedly decreased and was completely inhibited on medium containing 20 µM TIBA. On medium containing 5–10 µM, somatic embryos developed sporadically on the surface of the cotyledons and had a normal embryo axis but jar-shaped cotyledons. Embryos with jar-shaped cotyledons were also observed to occur at a high frequency when the early globular embryos formed on hormone-free medium were transferred to medium containing 20 µM TIBA. From these results, it was deduced that endogenous auxin in the cotyledon explants plays an important role in the induction of somatic embryos and that the cotyledon development in somatic embryos is also related to the polar transport of endogenous auxin.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002990050312
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  • 3
    Electronic Resource
    Electronic Resource
    Somatic embryogenesis and plant regeneration from suspension cultures of Acanthopanax koreanum Nakai (1997)
    Springer
    Plant cell reports 17 (1997), S. 84-88 
    Details
    ISSN: 1432-203X
    Keywords: Key wordsAcnathopanax koreanum ; Cell suspension culture ; Somatic embryos
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract High-frequency somatic embryogenesis was achieved from an embryogenic cell suspension culture of Acanthopanax koreanum Nakai. Stem segments were cultured on Murashige and Skoog (MS) medium containing auxins and cytokinins. Opaque and friable embryogenic callus formed on MS medium with 4.5 µm 2,4-dichlorophenoxyacetic acid (2,4-D) and 2.0 µm kinetin or zeatin, but was highest on medium containing 4.5 µm 2,4-D alone. Embryogenic calli were transferred to MS liquid medium containing 4.5 µm 2,4-D and maintained by subculture at 2-week intervals. Initiation of somatic embryogenesis and development up to the globular stage from embryogenic cell clumps occurred in medium containing 0.45 µm 2,4-D, whereas maturation and germination of somatic embryos occurred in MS medium lacking 2,4-D. Cytokinin treatment suppressed the normal growth of embryos, but stimulated secondary somatic embryogenesis from the surfaces of primary embryos. Plants from somatic embryos were acclimatized in a greenhouse.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002990050357
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  • 4
    Electronic Resource
    Electronic Resource
    Regenerative ability of somatic single and multiple embryos from cotyledons of Korean ginseng on hormone-free medium (1998)
    Springer
    Plant cell reports 17 (1998), S. 544-551 
    Details
    ISSN: 1432-203X
    Keywords: Key words Direct somatic embryogenesis ; Panax ginseng ; Plant regeneration ; Propagation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Cotyledon explants of Korean ginseng (Panax ginseng C. A. Meyer) produced somatic embryos directly on growth regulator-free medium. Somatic embryos developed as either multiple or single-state forms, depending on the degree of maturity of the cotyledons. Cotyledon explants from midmature zygotic embryos formed multiple embryos, while cotyledons from fully mature zygotic embryos formed single embryos. Somatic single embryos regenerated into normal plantlets with both roots and shoots, while multiple embryos did not produce roots but regenerated only into multiple shoots. In full-strength MS basal medium, the root growth of plantlets derived from single embryos was weak compared to that of shoots. Deletion of ammonium nitrate from the MS medium promoted the root growth of the plantlets. The ginseng plants with well-developed shoots and roots regenerated from single embryos were successfully acclimatized in a greenhouse when they were planted in soil.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002990050439
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  • 5
    Electronic Resource
    Electronic Resource
    Fully developed flow in a curved pipe of arbitrary curvature ratio (1987)
    Chichester : Wiley-Blackwell
    International Journal for Numerical Methods in Fluids 7 (1987), S. 733-755 
    Details
    ISSN: 0271-2091
    Keywords: Curved Pipe Flow ; Artificial Compressibility Method ; Dean Number ; Secondary Flow ; Effect of Curvature Ratio ; Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: It is generally assumed in curved pipe flow analyses that the curvature ratio, δ, of the pipe is very small, in which case the flow depends on a single parameter, the Dean number. This is not the case if δ is not very small. To determine the importance of this effect we have numerically solved the full Navier-Stokes equations, in primitive variable form, for arbitrary values of δ. A factored ADI finite-difference scheme has been used, employing Chorin's artificial compressibility technique. The results show that the central-difference calculation on a staggered grid is stable, without adding artificial damping terms, due to coupling between pressure and velocity. A spatially variable time step is used with a fixed Courant number.
    Additional Material: 12 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/fld.1650070705
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  • 6
    Electronic Resource
    Electronic Resource
    Numerical simulation of free shear flows and far-field sound pressure directivity (1994)
    Chichester : Wiley-Blackwell
    International Journal for Numerical Methods in Fluids 18 (1994), S. 337-359 
    Details
    ISSN: 0271-2091
    Keywords: Pade compact scheme ; Dispersion-relation-preserving scheme ; Free shear flow ; Large vortical structure ; Acoustic analogy ; Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: An implicit spatial differencing technique with fourth-order accuracy has been developed based on the Pade compact scheme. A dispersion-relation-preserving concept has been incorporated into the numerical scheme. Two-dimensional Euler computation of a spatially developing free shear flow with and without external excitation has been performed to demonstrate the capability of the numerical scheme developed. Results are in good agreement with theory and experimental observation regarding the growth rate of the fluctuating velocity, the convective velocity and the vortex-pairing process. The far-field sound pressure generated by the computed shear flow solution using Lighthill's acoustic analogy shows a strong directivity with a zone of silence at the flow angle.
    Additional Material: 14 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/fld.1650180403
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  • 7
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    Slip zone and energetics of a large earthquake from the Taiwan Chelungpu-fault Drilling Project (2006)
    In:  Nature, pp. 473-476, vol. 444
    Details
    Publication Date: 2006
    Keywords: CC 4 ; Coordinating Committee ; Continental Drilling ; ICDP
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  • 8
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    Evidence of frictional melting within disk-shaped black materials discovered from the Taiwan Chelungpu fault system (2006)
    In:  Geophysical Research Letters, vol. 32
    Details
    Publication Date: 2006
    Keywords: CC 4 ; Coordinating Committee ; Continental Drilling ; ICDP
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  • 9
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    Numerical analyses for improved hydrodynamics of deep water torpedo anchor (2015)
    Institute of Physics (IOP)
    Details
    Publication Date: 2015-12-23
    Description: The literature shows a lack on well established guidelines on the design of the torpedo anchors. This research aims to investigate the effect of various geometric parameters in the torpedo anchors’ design to optimize for higher terminal velocity. A CFD model was developed and simulations were carried out using ANSYS FLUENT commercial software. Consequently, correlations between various parameters and its resultant drag coefficient were developed. The parameters of interest included geometric changes of the original design, as well as sea water properties that reflect water depth in South China Sea. New design features are proposed and investigated in the overall parametric studies. As a result, it was found that the terminal velocity can be improved by sharper tip angle, greater aspect ratio, greater diameter ratio, and an optimum rear angle of 30°. Clear relationships between each factor and its resulted terminal velocity were developed. More importantly, the sensitivity of drag...
    Print ISSN: 1757-8981
    Electronic ISSN: 1757-899X
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Institute of Physics (IOP)
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  • 10
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    Rising CO2 drives divergence in water use efficiency of evergreen and deciduous plants (2019)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2019
    Description: 〈p〉Intrinsic water use efficiency (iWUE), defined as the ratio of photosynthesis to stomatal conductance, is a key variable in plant physiology and ecology. Yet, how rising atmospheric CO〈sub〉2〈/sub〉 concentration affects iWUE at broad species and ecosystem scales is poorly understood. In a field-based study of 244 woody angiosperm species across eight biomes over the past 25 years of increasing atmospheric CO〈sub〉2〈/sub〉 (~45 ppm), we show that iWUE in evergreen species has increased more rapidly than in deciduous species. Specifically, the difference in iWUE gain between evergreen and deciduous taxa diverges along a mean annual temperature gradient from tropical to boreal forests and follows similar observed trends in leaf functional traits such as leaf mass per area. Synthesis of multiple lines of evidence supports our findings. This study provides timely insights into the impact of Anthropocene climate change on forest ecosystems and will aid the development of next-generation trait-based vegetation models.〈/p〉
    Electronic ISSN: 2375-2548
    Topics: Natural Sciences in General
    Published by American Association for the Advancement of Science (AAAS)
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