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  • 1
    Unbekannt
    Beijing ; New York : Science Press
    Schlagwort(e): DDC 515/.26 ; LC QA295 ; Inequalities (Mathematics) ; Markov processes ; Semigroups ; Spectral theory (Mathematics)
    Seiten: Online-Ressource (p)
    ISBN: 9780080449425
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Unbekannt
    Amsterdam ; Boston : Elsevier
    Schlagwort(e): DDC 337/.01/5195 ; LC HD2963 ; Competition, International - Mathematical models ; Competition - Mathematical models ; Cooperation - Mathematical models ; International cooperation - Mathematical models ; International economic relations - Mathematical models
    Beschreibung / Inhaltsverzeichnis: In this book, the functional inequalities are introduced to describe: (i) the spectrum of the generator: the essential and discrete spectrums, high order eigenvalues, the principle eigenvalue, and the spectral gap; (ii) the semigroup properties: the uniform intergrability, the compactness, the convergence rate, and the existence of density; (iii) the reference measure and the intrinsic metric: the concentration, the isoperimetic inequality, and the transportation cost inequality.
    Seiten: Online-Ressource (i-iii, 379 pages)
    ISBN: 9780080449425
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    facet.materialart.
    Unbekannt
    Presses de l’Université de Montréal
    Publikationsdatum: 2024-03-25
    Beschreibung: Pauvreté généralisée causée par la surpopulation, familles nombreuses et nécessiteuses, croissance démographique irrépressible, absence, avant les politiques de Mao, de tout contrôle des naissances... les préjugés au sujet de la Chine ont la vie dure. Ce livre, d’entrée de jeu, attaque les idées reçues sur la population chinoise, idées pour la plupart héritées des vieilles thèses malthusiennes datant du début du xixe siècle. Surpeuplement, misère, fécondité, mariage... tout est ici remis en question. Les auteurs abordent le phénomène de la population chinoise sur plusieurs fronts, réussissant ainsi à en donner une vision globale. Ils mettent dans une nouvelle lumière l’explosion démographique des années 1960-1975, où la population passa de 600 millions à près de 850 millions, puis les débuts du contrôle des naissances jusqu’à la politique de l’enfant unique en vigueur depuis 1985. Ils renouvellent ainsi notre compréhension non seulement de la démographie de la Chine, mais aussi de son histoire, de sa société et de son économie. Et comprendre la Chine aujourd’hui, c’est mieux comprendre le monde que nous habitons.
    Schlagwort(e): D1-2009 ; infanticide ; régulation des naissances ; population chinsoise ; démographie chinoise ; thema EDItEUR::D Biography, Literature and Literary studies::D Biography, Literature and Literary studies::DN Biography and non-fiction prose
    Sprache: Französisch
    Format: image/png
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Publikationsdatum: 2023-01-30
    Beschreibung: This data describe the freezing experiment of rainwaters collected in Tibetan Plateau (TP). The data set includes two parts, which are results of untreated samples and samples after being heated to 95 °C in 10 minutes.
    Schlagwort(e): Date/time end; Date/time start; Frozen droplets; Frozen fraction; Ice Nucleating Particle; Ice nucleating particles, per air volume; Ice nucleating particles, per water volume; Identification; MULT; Multiple investigations; Nam_Co; Rainwater; Sample comment; Sample ID; Temperature, technical; Tibetan Plateau
    Materialart: Dataset
    Format: text/tab-separated-values, 164394 data points
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
    Publikationsdatum: 2023-01-30
    Beschreibung: This data gives the concentrations of water-soluble ions and organic carbon (WSOC), metal elements and black carbon in rainwater samples.
    Schlagwort(e): Aluminium; Ammonium; Barium 2+; Black carbon; Calcium; Carbon, organic, total per volume; Chloride; Chromium; Copper; Date/time end; Date/time start; Ice Nucleating Particle; Ion chromatograph, Dionex Corporation, ICS-2500/2000; Iron; Lead; Magnesium; Manganese 2+; MULT; Multiple investigations; Nam_Co; Nickel; Nitrate; Potassium; Rainwater; Sample ID; Sodium; Sulfate; Tibetan Plateau; TOC analyzer (Shimadzu, TOC-L CPH CN200); Zinc
    Materialart: Dataset
    Format: text/tab-separated-values, 770 data points
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
    Publikationsdatum: 2023-01-30
    Beschreibung: This data shows the calculated percentage of residence time when air masses passed over different land covers (vegetation,agriculture,bare area, water/ice and urban area), coupling the back forward trajectories analysis and land cover dataset obtained from Geographic Information System (GIS)
    Schlagwort(e): Date/time end; Date/time start; Ice Nucleating Particle; MULT; Multiple investigations; Nam_Co; Obtained from Geographic Information System (GIS); Rainwater; Residence time; Sample ID; Tibetan Plateau
    Materialart: Dataset
    Format: text/tab-separated-values, 272 data points
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
    Publikationsdatum: 2023-01-30
    Beschreibung: This data gives the contributions of different sources (Marine and salt-lake, dust, biomass burning and long-range transport anthropogenic pollutants) to chemical components measured in rainwater resulted from the Positive Matrix Factorization Model developed by Environmental Protection Agency (EPA-PMF).
    Schlagwort(e): Components, chemical; Date/time end; Date/time start; Ice Nucleating Particle; MULT; Multiple investigations; Nam_Co; Positive Matrix Factorization Model; Rainwater; Sample ID; Tibetan Plateau
    Materialart: Dataset
    Format: text/tab-separated-values, 238 data points
    Standort Signatur Erwartet Verfügbarkeit
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  • 8
    Publikationsdatum: 2024-01-26
    Beschreibung: The ice-nucleating particles (INPs) modulate the microphysics and radiative properties of clouds. However, less is known concerning their abundance and sources in the most pristine and climatic sensitive regions, such as the Tibetan Plateau (TP). Here, to our best knowledge, we conduct the first investigation on INPs in rainwater collected in the TP region under mixed-phase cloud conditions. The INP concentrations vary from 0.002 to 0.675 L-1 Air over the temperature range from -7.1 to -27.5 °C, being within the INP spectra derived from precipitation under worldwide geophysical conditions, and are also comparable to those in the Arctic region. The heating-sensitive INPs account for 57%±30% of the observed INPs at -20 °C, and become increasingly important at warmer temperature regime, indicating biogenic particles as major contributors to INPs above -20 °C over the TP, especially, on the day with additional input of biogenic materials carried by dust particles. Chemical analysis demonstrates the rainwater components are mixture of dust particles, marine aerosol, and anthropogenic pollutants. Dust particles transported from the surrounding deserts and originated from ground surface of TP may contribute to the heating-resistant INPs at temperatures below -20 °C.
    Schlagwort(e): Ice Nucleating Particle; Rainwater; Tibetan Plateau
    Materialart: Dataset
    Format: application/zip, 4 datasets
    Standort Signatur Erwartet Verfügbarkeit
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  • 9
    Digitale Medien
    Digitale Medien
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 85 (1999), S. 3175-3179 
    ISSN: 1089-7550
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: The optimal reflectivity of soft-x-ray multilayers made of new pairs of materials was theoretically calculated in the wavelength range of 2.0–4.5 nm. Molybdenum and silicon dioxide were then selected for "high index" and "low index" layer, respectively, in the multilayer system. The microstructures and composition profiles of multilayers of molybdenum and silicon dioxide were investigated by means of low-angle x-ray diffraction, cross-sectional high resolution electron microscopy, an energy-filtering transmission electron microscope elemental mapping, and Auger electron spectrometry. The results show that no diffusion of Si into Mo layers has occurred, and only slight diffusion of O into Mo layers are seen. Sharp and relatively smooth interfaces have formed. With increasing number of layers, the interfacial roughness was propagated through the multilayer stack and low-frequency roughness increases while the high-frequency roughness decreases. © 1999 American Institute of Physics.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 10
    Digitale Medien
    Digitale Medien
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 104 (1996), S. 9304-9312 
    ISSN: 1089-7690
    Quelle: AIP Digital Archive
    Thema: Physik , Chemie und Pharmazie
    Notizen: Pure rotational spectra have been calculated for the three isotopomers of the Cl2–Ar van der Waals complex formed by Cl2 in its ground electronic state. The potential energy surface involved is a sum of pairwise Morse atom–atom interactions, which are merged asymptotically into an anisotropic van der Waals form. The Morse atom–atom interactions have been refined by adjusting their parameters to obtain agreement with both excitation spectra and recent microwave transitions observed for the 35Cl2–Ar van der Waals complex, whereas the anisotropic long-range part of the potential surface has been taken from ab initio results [Mol. Phys. 80, 533 (1993)]. The present model potential surface predicts a T-shaped structure for the complex, in agreement with experiment. Excellent agreement has been found between the calculated and experimental microwave transition frequencies for the 35Cl37Cl–Ar complex. Good agreement has also been found between the experimentally determined bond energy, bond length, and average "bond angle'' governing the overall geometry of the complex and the corresponding quantities determined from dynamical calculations based upon the present potential surface. The new potential surface has also been utilized to predict the microwave spectrum of the 37Cl2–Ar isotopomer. © 1996 American Institute of Physics.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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