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  • 1
    Unknown
    Advances in Microfluidics : New Applications in Biology, Energy, and Materials Sciences (2016)
    Rijeka : InTech
    Details
    Keywords: microfluidics ; CO2 sequestration ; CO2 capture ; flow control
    Description / Table of Contents: Increasing innovations and applications make microfluidics a versatile choice for researchers in many disciplines. This book consists of multiple review chapters that aim to cover recent advances and new applications of microfluidics in biology, electronics, energy, and materials sciences. It provides comprehensive views of various aspects of microfluidics ranging from fundamentals of fabrication, flow control, and droplet manipulation to the most recent exploration in emerging areas such as material synthesis, imaging and novel spectroscopy, and marriage with electronics. The chapters have many illustrations showcasing exciting results. This book should be useful for those who are eager to learn more about microfluidics as well as researchers who want to pick up new concepts and developments in this fast-growing field.
    Pages: Online-Ressource (420 Seiten)
    ISBN: 9789535127864
    URL: http://www.intechopen.com/books/advances-in-microfluidics-new-applications-in-biology-energy-and-materials-sciences
    Language: English
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    E-BOOK
  • 2
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    Unknown
    On nonhydrostatic coastal model simulations of shear instabilities in a stratified shear flow at high Reynolds number (2017)
    John Wiley & Sons
    Details
    Publication Date: 2022-05-26
    Description: Author Posting. © American Geophysical Union, 2017. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research: Oceans 122 (2017): 3081–3105, doi:10.1002/2016JC012334.
    Description: The nonhydrostatic surface and terrain-following coastal model NHWAVE is utilized to simulate a continually forced stratified shear flow in a straight channel, which is a generic problem to test the existing nonhydrostatic coastal models' capability in resolving shear instabilities in the field scale. The resolved shear instabilities in the shear layer has a Reynolds number of about 1.4 × 106, which is comparable to field observed value. Using the standard Smagorinsky closure with a grid size close to the Ozmidov length scale, simulation results show that the resolved energy cascade exceeds 1 order of magnitude and the evolution and turbulent mixing characteristics are predicted well. Two different approaches are used to estimate the turbulent dissipation rate, namely using the resolved turbulent energy spectrum and the parameterized subgrid turbulent dissipation rate, and the predicted results provide the upper and lower bounds that encompass the measured values. Model results show significantly higher turbulence in braids of shear instabilities, which is similar to field observations while both the subgrid turbulent dissipation rate and resolved vorticity field can be used as surrogates for measured high acoustic backscatter signals. Simulation results also reveal that the surface velocity divergence/convergence is an effective identifier for the front of the density current and the shear instabilities. To guide future numerical studies in more realistic domains, an evaluation on the effects of different grid resolutions and subgrid viscosity on the resolved flow field and subgrid dissipation rate are discussed.
    Description: Office of Naval Research Grant Numbers: N00014-15-1-2612 , N00014-16-1-2948; National Science Foundation Grant Numbers: OCE-1334325 , OCE-1232928; Extreme Science and Engineering Discovery Environment (XSEDE) SuperMIC Grant Number: TG-OCE100015
    Description: 2017-10-11
    Keywords: Nonhydrostatic model ; Shear instabilities ; Stratified shear flow ; Surface signatures
    Repository Name: Woods Hole Open Access Server
    Type: Article
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    PAPER (OA)
  • 3
    Electronic Resource
    Electronic Resource
    Structural, dielectric, and rheological characterization of a thermotropic polyester displaying smectic A, nematic, and isotropic phases (1990)
    s.l. : American Chemical Society
    Macromolecules 23 (1990), S. 5192-5200 
    Details
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ma00227a005
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  • 4
    Electronic Resource
    Electronic Resource
    Antifreeze proteins in winter rye (1997)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 100 (1997), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Six antifreeze proteins, which have the unique ability to adsorb onto the surface of ice and inhibit its growth, have been isolated from the apoplast of winter rye leaves where ice forms at subzero temperatures. The rye antifreeze proteins accumulate during cold acclimation and are similar to plant pathogenesis-related proteins, including two endoglucanase-like, two chitinase-like and two thaumatin-like proteins. Immunolocalization of the glucanase-like antifreeze proteins showed that they accumulate in mesophyll cell walls facing intercellular spaces, in pectinaceous regions between adjoining mestome sheath cells, in the secondary cell walls of xylem vessels and in epidermal cell walls. Because the rye antifreeze proteins are located in areas where they could be in contact with ice, they may function as a barrier to the propagation of ice or to inhibit the recrystallization of ice. Antifreeze proteins similar to pathogenesis-related proteins were also found to accumulate in closely-related plants within the Triticum group but not in freezing-tolerant dicotyledonous plants. In winter wheat, the accumulation of antifreeze proteins and the development of freezing tolerance are regulated by chromosome 5. Rye antifreeze proteins may have evolved from pathogenesis-related proteins, but they retain their catalytic activities and may play a dual role in increasing both freezing and disease resistance in overwintering plants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3054.1997.tb04790.x
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  • 5
    Electronic Resource
    Electronic Resource
    Winter rye antifreeze activity increases in response to cold and drought, but not abscisic acid (2001)
    Copenhagen : Munksgaard International Publishers
    Physiologia plantarum 112 (2001), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Antifreeze activity increases in winter rye (Secale cereale L.) during cold acclimation as the plants accumulate antifreeze proteins (AFPs) that are similar to glucanases, chitinases and thaumatin-like proteins (TLPs) in the leaf apoplast. In the present work, experiments were conducted to assess the role of drought and abscisic acid (ABA) in the regulation of antifreeze activity and accumulation of AFPs. Antifreeze activity was detected as early as 24 h of drought treatment at 20°C and increased as the level of apoplastic proteins increased. Apoplastic proteins accumulated rapidly under water stress and reached a level within 8 days that was equivalent to the level of apoplastic proteins accumulated when plants were acclimated to cold temperature for 7 weeks. These drought-induced apoplastic proteins had molecular masses ranging from 11 to 35 kDa and were identified as two glucanases, two chitinases, and two TLPs, by using antisera raised against cold-induced rye glucanase, chitinase, and TLP, respectively. Apoplastic extracts obtained from plants treated with ABA lacked the ability to modify the growth of ice crystals, even though ABA induced the accumulation of apoplastic proteins within 4 days to a level similar to that obtained when plants were either drought-stressed for 8 days or cold-acclimated for 7 weeks. These ABA-induced apoplastic proteins were identified immunologically as two glucanases and two TLPs. Moreover, the ABA biosynthesis inhibitor fluridone did not prevent the accumulation of AFPs in the leaves of cold-acclimated rye plants. Our results show that cold acclimation and drought both induce antifreeze activity in winter rye plants and that the pathway regulating AFP production is independent of ABA.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1034/j.1399-3054.2001.1120111.x
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  • 6
    Electronic Resource
    Electronic Resource
    Purification, immunolocalization, cryoprotective, and antifreeze activity of PCA60: A dehydrin from peach (Prunus persica) (1999)
    Copenhagen : Munksgaard International Publishers
    Physiologia plantarum 105 (1999), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Dehydrins are glycine-rich, hydrophilic, heat-stable proteins and are generally induced in response to a wide array of environmental stresses. In previous research (Artlip et al. 1997, Plant Molecular Biology 33: 61–70), a full-length dehydrin gene, ppdhn1, was isolated from peach, and its expression was associated with qualitative and quantitative differences in cold hardiness in sibling genotypes of evergreen and deciduous peach. Similar results were obtained for levels of the corresponding 60 kDa peach dehydrin protein (PCA60). The objective of the present study was to purify the PCA60, test the purified protein for cryoprotective and/or antifreeze activity, and to determine the cellular localization of PCA60 using immunomicroscopy. PCA60 was extracted from winter bark tissues of peach (Prunus persica [L.] Batsch) and purified in a two-step process. Separation was based on free-solution isoelectric focusing followed by size exclusion. Purified PCA60, as well as crude protein extract, preserved the in vitro enzymatic activity of lactate dehydrogenase after several freeze-thaw cycles in liquid nitrogen. PCA also exhibited distinct antifreeze activity as evidenced by ice crystal morphology and thermal hysteresis. This is the first time antifreeze activity has been demonstrated for dehydrins. Immunomicroscopy, utilizing an affinity-purified, polyclonal antibody developed against a synthetic peptide of the lysine-rich consensus portion of dehydrins, indicated that PCA60 was freely distributed in the cytoplasm, plastids, and nucleus of bark cells and xylem parenchyma cells. Although the functional role of dehydrins remains speculative, the data support the hypothesis that it plays a role in preventing denaturation of proteins exposed to dehydrative stresses.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1034/j.1399-3054.1999.105402.x
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  • 7
    Electronic Resource
    Electronic Resource
    Bis(thiosemicarbazide-S,N)zinc(II) dinitrate (2000)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 56 (2000), S. 44-45 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: In the title compound, [Zn(CH5N3S)2](NO3)2, the zinc(II) ion is located on the twofold axis and chelated by two thiosemicarbazide ligands with Zn—S and Zn—N distances of 2.0904 (17) and 2.2672 (6) Å, respectively. Thus the central zinc(II) is four-coordinated and in a distorted tetrahedral geometry. The inter- and intramolecular hydrogen bonds formed between thiosemicarbazide ligands and nitrate anions assemble the molecules into a one-dimensional chain.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270199012974
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  • 8
    Electronic Resource
    Electronic Resource
    Crystal and molecular structure of aqua(2,2′-bipyridine)bis(betaine)copper(II) perchlorate monohydrate (1995)
    Springer
    Journal of chemical crystallography 25 (1995), S. 875-878 
    Details
    ISSN: 1572-8854
    Keywords: Copper(II) ; 2,2′-bipyridine ; betaine ; trimethylammonioacetate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract A new monomeric copper(II) complex with 2,2′-bipyridine (bpy) and betaine (bet), [Cu(byy)(bet)2(H2O)](ClO4)2 · H2O, has been prepared and characterized by X-ray crystallography. The complex crystallizes in the triclinic space groupP-1 witha=8.859(2),b=11.191(2),c=14.850(3) Å, α=91.41(1), β=97.19(1), γ=91.97(1)°,V=1459.2(7) Å3, andZ=2. The structure comprises discrete cations [Cu(bpy)(bet)2(H2O)]2+ in which the metal atom is coordinated in a distorted square-pyramidal environment by two oxygen atoms from a pair of monodentate carboxylato ligands [Cu−O=1.950(2) Å] and two nitrogen atoms of a bidentate bpy ligand [Cu−N=1.997(3)−2.005(3) Å] on the basal plane, and one aqua [Cu−O=2.267(3) Å] ligand at the apical position.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01671086
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  • 9
    Electronic Resource
    Electronic Resource
    Crystal structure of [Co(o-SC6H4NH2){P(OMe)3}3]PF6 (1998)
    Springer
    Journal of chemical crystallography 28 (1998), S. 635-638 
    Details
    ISSN: 1572-8854
    Keywords: Cobalt(II) ; 2-aminobenzenethiol ; trimethylphosphite ; crystal structure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract A cobalt-thiolato-phosphite complex [Co(o-SC6H4NH2){P(OMe)3}3]PF6 has been prepared and characterized by X-ray crystallography. The complex crystallizes in the triclinic space group $$P\bar 1$$ with a = 10.590(4), b = 11.122(3), c = 13.577(5) Å, α = 101.85(1), β = 108.50(1), γ = 101.75(1)°, V = 1420.6(8) Å3, and Z = 2. The structure comprises discrete [Co(o-SC6H4NH2){P(OMe)3}3]+ cations and PF 6 − anions where the metal atom is coordinated in a highly distorted square-pyramidal environment by one chelate o-SC6H4NH 2 − (abt) and two P(OMe)3 ligands in the basal positions, and a third P(OMe)3 in the axial site with Co–N,, 1.847(5), Co–S, 2.166(2), Co–P, 2.157(2), 2.147(2), and 2.125(2) Å.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1022417127336
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  • 10
    Electronic Resource
    Electronic Resource
    Meson spectrum in Regge phenomenology (2004)
    Springer
    The European physical journal 37 (2004), S. 323-333 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. Under the assumption that both light and heavy quarkonia populate approximately linear Regge trajectories with the requirements of additivity of intercepts and inverse slopes, the masses of different meson multiplets are estimated. The predictions derived from the quasi-linear Regge trajectories are in reasonable agreement with those given by many other references.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1140/epjc/s2004-02002-5
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