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  • 1
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    Informe Final Código BIP:20087338-0 Investigación desarrollo de cultivos acuícolas en Puerto Edén. (2015)
    Instituto de Fomento Pesquero | Valparaíso, Chile
    Details
    Publication Date: 2021-05-19
    Description: Esta investigación tiene por objetivo desarrollar una opción de crecimeinto socioeconómico de la población de Puerto Edén utilizando la acuicultura como alternativa de desarrollo.
    Description: This research aims to develop an option socioeconomic growth population of Puerto Edén using aquaculture as a development alternative.
    Description: Unpublished
    Keywords: Artisanal fishing ; Aula comya ater ; Mytilus chilensis ; Chlamys patagónica
    Repository Name: AquaDocs
    Type: Report , Refereed , Article
    Format: 44pp., Tablas y Figuras
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  • 2
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    Visible and ultraviolet antibacterial behavior in PVDF–TiO2 nanocomposite films (2015)
    Elsevier
    Details
    Publication Date: 2015-10-01
    Print ISSN: 0014-3057
    Electronic ISSN: 1873-1945
    Topics: Chemistry and Pharmacology , Physics
    Published by Elsevier
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  • 3
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    Influence of nanoparticles on elastic and optical properties of a polymeric matrix: Hypersonic studies on ethylene–vinyl alcohol copolymer–titania nanocomposites (2010)
    Elsevier
    Details
    Publication Date: 2010-03-01
    Print ISSN: 0014-3057
    Electronic ISSN: 1873-1945
    Topics: Chemistry and Pharmacology , Physics
    Published by Elsevier
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  • 4
    Electronic Resource
    Electronic Resource
    Static structure of electrolyte systems and the linear response function on the basis of a dressed-ion theory (1998)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 109 (1998), S. 1930-1938 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The static structure of a bulk electrolyte solution or colloid system is investigated in the framework of a dressed-ion theory (DIT). The number–number, charge–number, and charge–charge static structure factors are calculated and are seen to depend only on the linear response function of the DIT α(circumflex)(k), the α function therefore determining the charge structure of the fluid in what is an expression of the fluctuation–dissipation theorem. The expression of the static structure factors for one-component charged spheres (OCCS) is evaluated in the random-phase approximation and in a modified version of the mean-spherical approximation (MSA), using the hard-sphere fluid as a reference system, and an explicit expression for the linear response function and dielectric function is obtained. The effective screening length (κ−1) and the transition from monotonic exponential to oscillatory behavior obtained from the modified MSA expression of the α function are seen to improve the ones derived from the second moment condition at intermediate concentrations. The internal charge density distribution of a dressed ion and the renormalized ion charges (q*) are also investigated. The oscillatory behavior of the charge distributions suggests an "onionlike model," with the central ion surrounded by spherical charge shells. The effective charges calculated from the modified MSA are seen to diverge in the neighborhood of the transition from the monotonic exponential regime to the oscillatory regime. In the limit of vanishing concentration, Debye–Hückel (DH) results are recovered.© 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.476770
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  • 5
    Electronic Resource
    Electronic Resource
    XANES-TPR Study of Cu-Pd Bimetallic Catalysts: Application of Factor Analysis (1995)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 99 (1995), S. 12565-12569 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100033a032
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  • 6
    Electronic Resource
    Electronic Resource
    Thermodynamics of electrolyte solutions in the modified mean spherical approximation (2000)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 113 (2000), S. 292-296 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The exact Ornstein–Zernike formalism for ionic fluids is seen to be equivalent to the dressed-ion theory (DIT), therefore proving the exact character of this mean-field formalism. The modified mean spherical approximation (MMSA) [Varela et al., J. Chem. Phys. 109, 1930 (1998)] is a modified version of the mean spherical approximation, which corrects some of the deficiencies of the original version of this closure relation in the prediction of the effective screening length. The MMSA effective non-Debye decay length, developed in the framework of the dressed-ion transport theory (DIT) of Kjellander and Mitchell, is an improvement on those of other theoretical and numerical schemes, which include self-consistent second moment approaches, asymptotic expansions, and nonlinear Debye–Hückel approximations. The MMSA screening length is used to analyze thermodynamic magnitudes of the charged fluid such as the internal energy and the osmotic coefficient and the results are seen to fit accurately to hypernetted chain calculations. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.481794
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  • 7
    Electronic Resource
    Electronic Resource
    Theory for the ultrafast melting and fragmentation dynamics of small clusters after femtosecond ionization (1998)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 109 (1998), S. 1101-1110 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The ultrafast relaxation of small clusters immediately after ultrashort single ionization is studied. We use an electronic model and molecular dynamics simulations to analyze the ionization induced fragmentation dynamics of small Hgn clusters. Our results show that fragmentation consists mainly in emission of single atoms. We also find a remarkable difference between this nonequilibrium unimolecular dissociation and that described by the Rice–Ramsperger–Kassel–Marcus theory. For fixed cluster size, we determine the time-dependent fragmentation probability of a cluster ensemble as a function of the temperature before ionization. A dramatic change of the fragmentation behavior occurs when the temperature before ionization reaches the "melting temperature" of the neutral clusters. For all cluster sizes studied, the temperature dependence of the average fragmentation times after ionization shows a remarkable correlation with the root-mean-square bond length fluctuations δ(T) of the clusters before ionization. This new effect reflects sensitivity of the ultrashort-ionization induced fragmentation dynamics to the melting dynamics of the neutral clusters. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.476653
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  • 8
    Electronic Resource
    Electronic Resource
    Influence of chaos on the ionization induced fragmentation dynamics of van der Waals clusters (1997)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 107 (1997), S. 9857-9863 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Molecular dynamics simulations based on a self-consistent electronic model are performed to investigate the effect of ionization on the atomic motion of small van der Waals clusters. We find unimolecular dissociation (fragmentation) with time scales in the picosecond range. The dynamics during the relaxation process after ionization turns out to be extremely nonlinear, with fragmentation times which depend strongly on initial conditions. Our calculations show that the largest Liapunov exponent λ+ after ionization is much larger than λ0, the corresponding exponent before ionization. This indicates that the ionization process enhances the nonlinear character of the motion of small clusters. We also determined the distribution of fragmentation times as a function of the vibrational temperature of the clusters before ionization. Since the ionization process creates a state far away from thermodynamical equilibrium, a time-dependent fragmentation probability W(t) is obtained. Furthermore, W(t) reflects the ionization induced chaotic dynamics. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.475283
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  • 9
    Electronic Resource
    Electronic Resource
    A thermophysical study of the melting process in alkyl chain metal n-alkanoates: The thallium (I) series (1999)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 111 (1999), S. 3590-3598 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The peculiar thermal behavior of the thallium(I) n-alkanoates series (consisting in several transitions between polymorphic and mesomorphic phases) in comparison with other metallic n-alkanoates series is stated. The allowance of highly accurate adiabatic heat capacity data permits a study of the CH2 contributions to the lattice heat capacity curve at low temperature. Moreover, in this series an anomalous gradual enhancement of the lattice heat capacity has been interpreted from vibrational spectroscopy results as a noncooperative effect due to the internal hindered rotation of the alkyl chain (formation of gauche defects, even in the solid state). The thermodynamics of the "stepwise melting process" from the totally ordered solid at low temperature to the isotropic liquid is based on a revised lattice heat-capacity curve. This was used to evaluate the energy and entropy not only of the clear first order transitions present in the series but also of the described noncooperative effect. The CH2 enthalpy and entropy contribution for this series is estimated and a comparison with the published values for other series is carried out. Moreover, the texture of the mesophases is revealed by polarized light microscopy. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.480265
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  • 10
    Electronic Resource
    Electronic Resource
    Pseudolattice theory of strong electrolyte solutions (1997)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 107 (1997), S. 6415-6419 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The quadratic concentration dependence of the logarithmic activity coefficient and relative partial molar enthalpies of concentrated strong electrolyte solutions can be explained by assuming the solution to have a pseudolattice structure and taking short-range interactions into account through a hard-core potential with an attractive 1/r6 tail. The pseudolattice model is shown to reproduce the experimental data of activity coefficients and relative partial molar enthalpies with a great degree of accuracy over a large range of concentration. The validity of the short-range potential is explicitly tested with experimental data for a number of substances. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.474301
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