ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Parameter estimation in low order fractionally differenced ARMA processes (1989)
    Springer
    Stochastic environmental research and risk assessment 3 (1989), S. 97-110 
    Details
    ISSN: 1436-3259
    Keywords: ARMA processes ; fractionally differencedARMA processes ; long memory ; spectral density ; maximum likelihood estimates
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying , Energy, Environment Protection, Nuclear Power Engineering , Geography , Geosciences
    Notes: Abstract A class of regression type estimators of the parameterd in a fractionally differencedARMA (p, q) process is introduced. This class is an extension of the estimator considered by Geweke and Porter-Hudak. In a simulation study, we compared three estimators from this class together with two approximate maximum likelihood estimators which are based on two separate approximations to the likelihood. One approximation ignores the determinant term in the likelihood and the other includes a compensating factor for the determinant. When the determinant term is included, the estimate tends to be much less biased and is in general superior to the other estimate. The approximate maximum likelihood estimator out performed, by a large margin, the regression type estimators for pureARIMA (0,d,0) processes. However, forARIMA (1,d,1) processes, a regression type estimator turned out to be the best for realizations of length 400 in 3 out of the 5 cases we tried.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01544075
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Backward emitted protons in interactions of neutrinos with nuclei in photoemulsion (1992)
    Springer
    The European physical journal 56 (1992), S. 391-393 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Backward emitted protons with momentump〉0.3 GeV/c in interactions of neutrino in the energy range 10–200 GeV with photoemulsion nuclei were investigated. Energy spectrum slope parameter of backward protons was measured to beT 0=48.9±7.9 MeV. TheA-dependence power index of relative mean yield of backward protons was found to bea=0.68±0.12. A drop in the mean yield of backward protons at the four momentum squared over ∼15 (GeV/c)2 (the neutrino energy over ∼50 GeV) was observed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01565946
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Electrochemical evaluation of molybdenum nitride electrodes in H2SO4 electrolyte (1999)
    Springer
    Journal of applied electrochemistry 29 (1999), S. 75-80 
    Details
    ISSN: 1572-8838
    Keywords: molybdenum nitride electrodes ; capacitors ; H2SO4electrolytes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The electrochemical stability of polycrystalline thin film MoxN (x=1 and 2) electrodes deposited on previously nitrided polycrystalline Ti and bare Ti substrates and exposed to 4.4m H2SO4 electrolyte has been investigated. The electrodes were prepared by a temperature programmed procedure involving the reaction of MoO3 films and NH3. Cyclic voltammetry and a.c. impedance spectroscopy indicated that the range of electrochemical voltage stability in the electrolyte of the MoxN films on nitrided Ti substrates, referenced to a standard hydrogen electrode to be −0.01 to+0.69V. These electrodes had a calculated capacitance of about 315Fcm−3. The MoxN films on Ti substrates were electrochemically stable from −0.01 to +0.67V; however, they contained unconverted MoO2 which acted to reduce the calculated capacitance to about 210Fcm−3. At and above +0.70V and +0.68V on nitrided Ti and Ti substrates, respectively, an electrochemical reaction occurred. The formation of an amorphous phase in the reacted MoxN films was indicated by X-ray diffraction (XRD). Secondary ion mass spectroscopy (SIMS) showed increases in the atomic concentrations of hydrogen, oxygen and sulfur in the reacted films. The voltage bias applied to the electrodes influenced the chemical composition of the reacted films.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003460529736
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    X-ray absorption spectroscopy of Ti-containing molecular sieves ETS-10, aluminum-free Ti-β, and TS-1 (1995)
    Springer
    Catalysis letters 34 (1995), S. 101-113 
    Details
    ISSN: 1572-879X
    Keywords: ETS-10 ; TS-1 ; Ti-β ; EXAFS ; XANES ; X-ray ; UV ; methanol ; 2-propanol
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract We report here the first structural characterization by Ti K-edge EXAFS and XANES of ETS-10 and aluminum-free Ti-β molecular sieves. A TS-1 sample was also studied for comparison. The near-edge spectrum of TS-1 revealed an intense pre-edge feature characteristic of Ti atoms in tetrahedral coordination. However, the pre-edge peak for ETS-10 was quite small and shifted in energy, which is consistent with the known octahedral structure surrounding Ti atoms in the material. Analysis of the EXAFS for ETS-10 revealed an average Ti-O interatomic distance of 2.00 +- 0.01 Å which is longer than the Ti-O distance (1.95Å) in anatase TiO2. For Ti-β, an intense pre-edge peak is present in the near-edge spectrum and the intensity, energy and width of this peak are the same as for TS-1. In addition, the average Ti-O interatomic distance in Ti-β and TS-1 was 1.80 +- 0.01 Å, which is significantly shorter than the distance measured in ETS-10. The EXAFS and XANES results indicate that the Ti sites in aluminum-free Ti-β are structurally identical to the tetrahedral sites in TS-1. This conclusion is supported by the similarity of the UV absorption thresholds for the two samples. X-ray absorption spectra were also recorded with methanol or 2-propanol adsorbed on the Ti-β and TS-1 molecular sieves. Alcohol adsorption decreased the intensity and broadened the Ti pre-edge peak for both samples, demonstrating a local chemical interaction with the Ti sites. Methanol adsorption lengthened the average Ti-O bond to 1.83 ± 0.01 Å. The similarity of the X-ray absorption spectra for aluminum-free Ti-β and TS-1 in the presence of alcohols suggests that the Ti sites in the two frameworks are chemically indistinguishable for vapor-phase adsorption of alcohols at low concentrations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00808327
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Partial match retrieval using recursive linear hashing (1985)
    Springer
    BIT 25 (1985), S. 477-484 
    Details
    ISSN: 1572-9125
    Keywords: partial match retrieval ; linear hashing ; dynamic files ; 3.74 ; 4.33 ; 4.34
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract Recursive linear hashing is a hashing technique proposed for files which can grow and shrink dynamically. The scheme is an extension of linear hashing, a method originally proposed by Litwin, but unlike Litwin's scheme, it does not require conventional overflow pages. In this paper, we investigate the application of recursive linear hashing to partial match retrieval problems. Consistent with the results for primary key retrieval, recursive linear hashing performs better than the conventional scheme on these problems, especially at high load factors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01935368
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Thermodynamic response of Mie-Grüneisen materials at high pressures (1972)
    Springer
    The European physical journal 15 (1972), S. 230-236 
    Details
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Expressions are derived to give entropy and temperature in a material which obeys the Mie-Grüneisen equation, based on the assumption that both the Hugoniot pressure and the Grüneisen parameter may be expanded as infinite power series in strain. The resulting equations are used to obtain specific expressions for isothermal compression and for isentropic release from a Hugoniot state. A method is suggested for determining the Grüneisen parameter (as a function of strain) from isothermal compression data. Certain limitations involving possible phase transitions are pointed out.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02422683
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Further comments on thermodynamic response of Mie-Gruneisen materials (1973)
    Springer
    The European physical journal 17 (1973), S. 63-70 
    Details
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Results obtained in a previous paper [1] are modified to consider materials which exhibit a linear shock velocity—particle velocity Hugoniot, and for which the specific heat at constant volume is a function of temperature. Also, a method for synthesizing functional dependence of the Gruneisen parameter on strain is illustrated. A Mie-Gruneisen equation of state for water is obtained using this method.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01464266
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Antiphlogistic activity ofl-phenylalanine andl-tryptophane within the mouse peritoneal cavity (1972)
    Springer
    Cellular and molecular life sciences 28 (1972), S. 1230-1231 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Résumé L'inflammation de la cavité abdominale provoquée chez la souris par injection de gélatine a été inhibé par l'administration intrapéritonéale de 25 mg/kg del-phénylalanine et del-tryptophane. Ce fait a été constaté aussi en mesurant la distribution des cellules dans le liquide péritonéale aspiré.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01946189
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Peritoneal fluid cytodifferential changes associated with the administration of cortisone (1970)
    Springer
    Cellular and molecular life sciences 26 (1970), S. 1264-1265 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Résumé L'administration par voie s.c. à des souris femelles adultes, d'une dose quotidienne (de l'ordre de 0,025 à 5 mg) de cortisone en solution saline pendant 21 jours, fait diminue le nombre des lymphocytes et des cellules mesothéliales du liquide péritonéal. Il est possible que la cortisone inhibe la production de ces cellules. Ces données suggèrent aussi une transformation des cellules mésothéliales en «daisy cells» à noyaux vides. L'irritation produite par les très fortes doses de cortisone pourrait, en partie, expliquer l'élèvation du nombre des leucocytes à noyaux polymorphes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01898007
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    The peritoneal fluid cytology of the adult female rhesus monkey (1973)
    Springer
    Cellular and molecular life sciences 29 (1973), S. 1242-1242 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Résumé Le % de distribution des cellules de fluide péritonéal d'une femelle adulte de singe rhésus fut enregistré dans des échantillons de fluide cytologique extraits par la paratomie. Les données sond comparées à celles qui ont obtenues précédemment chez la femme.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01935096
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...