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  • 1
    Electronic Resource
    Electronic Resource
    Surface roughness effect on optical absorptivity of metals (1982)
    Springer
    Applied physics 29 (1982), S. 77-80 
    Details
    ISSN: 1432-0630
    Keywords: 78.20.Dj
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The white light (3700 K) optical absorptivity has been measured, using a calorimetric method, for a series of rough cold-worked metal surfaces. Results show a strong maximum (∼30%) in absorptivity vs roughness. The depth variance of surface imperfections (from 20 to 700 nm) has been determined by measuring infrared reflectance of the samples.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00632430
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  • 2
    Electronic Resource
    Electronic Resource
    An approach to the scattering of electromagnetic waves by rough metal surfaces (1982)
    Springer
    Il nuovo cimento della Società Italiana di Fisica 1 (1982), S. 578-586 
    Details
    ISSN: 0392-6737
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto Si propone un metodo per il calcolo dello scattering della radiazione elettromagnetica da parte di una superficie metallica rugosa avente imperfezioni non piccole rispetto alla lunghezza d’onda. La superficie è schematizzata mediante un piano ricoperto uniformemente da semisfere di egual raggio. Si suppone che il materiale sia buon conduttore (abbastanza da giustificare l’approssimazione di Leontovich) e che la radiazione incida normalmente al piano. L’uso di un teorema di addizione per le onde sferiche insieme ad alcune considerazioni di carattere statistico permette di scrivere le condizioni al contorno in forma semplice.
    Abstract: Резюме Предлагается метод для описания рассеяния электромагнитной волны на шероховатой металлической поверхности, неоднородности которой не являются малыми по сравнению с длиной волны. Поверхность представляется в виде плоскости, покрытой равномерно полусферами одинакового радиуса. Предполагается, что материал поверхности представляет хороший проводник, а падающая волна распространяется нормально к плоскости. Использование теоремы дополнительности для сферических волн и статистического описания позволяет записать граничные условия в простой форме.
    Notes: Summary A method to describe the scattering of an electromagnetic wave by a rough metal surface whose imperfections are not small with respect to the wave-length is proposed. The surface is simulated as a plane uniformly covered by hemispheres of equal radii, the material is supposed to be a good conductor and the incident wave to propagate normally to the plane. The use of an addition theorem for spherical waves together with some statistical considerations allows the boundary conditions to come out in a simple form.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02450541
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  • 3
    Electronic Resource
    Electronic Resource
    Impedance spectroscopy of pure water in the 0.01 Hz to 100 kHz range (1990)
    Springer
    Il nuovo cimento della Società Italiana di Fisica 12 (1990), S. 1117-1130 
    Details
    ISSN: 0392-6737
    Keywords: Solid-fluid interfaces ; Electronic transport in interface structures ; Electrochemistry and electrophoresis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Summary The complex impedance of a water-filled cell has been measured in the frequency range between 0.01 Hz and 100 kHz at temperatures ranging between 5°C and 80°C. The obtained results have been interpreted according to the Gouy, Chapmann and Stern model describing the water behaviour in the presence of electrode interfaces. The deconvolution of the measured complex impedance allowed to separate the contribution arising from the «bulk» water from those due to the Helmholtz layer and to the diffuse charge layer occurring at the electrode interface. The capacitance and resistance of the three layers are reported and their frequency and temperature dependences are briefly discussed. The use of this method as a tool to investigate the low-frequency dielectric properties of water is suggested.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02451954
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  • 4
    Electronic Resource
    Electronic Resource
    Temperature dependence of the ultraweak spontaneous photon emission from soya seeds (1993)
    Springer
    Il nuovo cimento della Società Italiana di Fisica 15 (1993), S. 1361-1370 
    Details
    ISSN: 0392-6737
    Keywords: Spectra, photodissociation, and photoionization of biomolecules ; bioluminescence ; Biophysical instrumentation and techniques ; PACS 87.90 ; Other topics in biophysics ; medical physics ; and biomedical engineering
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Summary The ultraweak radiation emitted from soya seeds during germination has been measured for different values of the temperature (20–35°C). The parameters relative to the photon emission time-counting series have been compared with the ones relative to germination and imbibition; it has been found that the activation energy relative to the process of the photon emission from live seeds is equal to that of the germination process (51 KJ/mole), demonstrating that the two processes are correlated. A function of the experimental parameters which eliminates the explicit dependence of the above biological processes on temperature has been proposed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02451682
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  • 5
    Electronic Resource
    Electronic Resource
    Relation between delayed luminescence and functional state in soya seeds (1994)
    Springer
    Il nuovo cimento della Società Italiana di Fisica 16 (1994), S. 65-73 
    Details
    ISSN: 0392-6737
    Keywords: Spectra, photodissociation and photoionization of biomolecules ; bioluminescence ; Biophysical instrumentation and techniques ; Other topics in biophysics, medical physics, and biomedical engineering
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Summary The possibility of using the parameters connected to delayed luminescence to detect thermal stress conditions in soya seeds is discussed here and the results of the measurement of photoinduced emission conducted on soya seeds characterized by a different vegetative vigour are presented. A phenomenological relationship between the total re-emission and the growth velocity was found. The distributions of the decay times relative to the different conditions of stress on the seeds have given indications towards the existence of different dynamics. On the basis of the results it seems that a correlation exists between the functional state of the seeds and delayed luminescence.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02452003
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  • 6
    Electronic Resource
    Electronic Resource
    Spectra of photons emitted from germinating seeds (1991)
    Springer
    Il nuovo cimento della Società Italiana di Fisica 13 (1991), S. 891-897 
    Details
    ISSN: 0392-6737
    Keywords: Spectra, photodissociation and photoionization of biomoleculecules ; bioluminescence ; Biooptics ; Biophysical instrumentation and techniques
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Summary Photon emitted in the visible and near ultraviolet range by germinating soya seeds has been measured by means of a low-noise photomultiplier coupled to a data acquisition system. The photon energy spectrum, determined by means of a set of optical filters, shows two main contributions in the red and UV bands. Results show that both the radiation intensity and its spectrum change during germination according to seed physiological conditions. The photon emission of seeds at rest changes with their germinability. The UV component at the germination beginning is a factor 6 larger for living seeds than for the devitalized ones. This result can be interpreted as an experimental evidence of the existence of mitogenetic radiation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02457176
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  • 7
    Electronic Resource
    Electronic Resource
    Biosystem response to soft-X-rays irradiation: non-monotonic effects in the relevant biological parameters of yeast cells (1996)
    Springer
    Il nuovo cimento della Società Italiana di Fisica 18 (1996), S. 657-662 
    Details
    ISSN: 0392-6737
    Keywords: Biophysical instrumentation and techniques ; Other topics in biophysics, medical physics, and biomedical engineering
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Summary Soft-X-rays irradiation of yeast cells allows selective interference with different cellular structures. The monitoring of different physical parameters leads to substantial variations in the response to X-rays showing that monotonicity should not be taken for granted.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02453256
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  • 8
    Electronic Resource
    Electronic Resource
    Delayed Luminescence as an Indicator of Tomato Fruit Quality (1998)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 63 (1998), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: To develop nondestructructive, objective, quality indicators for tomatoes we measured delayed luminescence, firmness, soluble solids, dry matter, color and respiration during ripening in cherry tomatoes (Lycopersicon esculentum var. cerasiforme). They were harvested at various maturity stages and ripened in the dark at 20°C and 80% relative humidity. Ten days after harvest we observed on fruit showing similar color, significant differences in the delayed luminescence, soluble solids and dry matter, directly related to harvest maturity. We suggest that delayed luminescence can be used as a nondestructive indicator of important indicators of tomato fruit quality.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1998.tb15775.x
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  • 9
    Electronic Resource
    Electronic Resource
    Activation Study of Implanted N〈sup〉+〈/sup〉 in 6H-SiC by Scanning Capacitance Microscopy (2003)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 433-436 (Sept. 2003), p. 375-378 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/07/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.433-436.375.pdf
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  • 10
    Electronic Resource
    Electronic Resource
    Photon emission from normal and tumor human tissues (1992)
    Springer
    Cellular and molecular life sciences 48 (1992), S. 10-13 
    Details
    ISSN: 1420-9071
    Keywords: Ultraweak radiation ; cancer ; low level luminescence ; biophoton
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Photon emission in the visible and near ultraviolet range by samples of human tissue removed during surgery has been measured by means of a low noise photomultiplier coupled to a data acquisition system. The results show that among the 25 analyzed samples the 9 from normal tissues had an emission rate of the order of some tens of photons/cm2 min, while most of the 16 tumor tissue samples had a very much higher rate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01923595
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