An Expanded Family of Dysprosium-Scandium Mixed-Metal Nitride Clusterfullerenes: The Role of the Lanthanide Metal on the Carbon Cage Size Distribution

2015 ◽  
Vol 21 (15) ◽  
pp. 5750-5759 ◽  
Author(s):  
Tao Wei ◽  
Fupin Liu ◽  
Song Wang ◽  
Xianjun Zhu ◽  
Alexey A. Popov ◽  
...  
2015 ◽  
Vol 25 (29) ◽  
pp. 4700-4707 ◽  
Author(s):  
David C. Green ◽  
Rebecca Boston ◽  
Stefan Glatzel ◽  
Martin R. Lees ◽  
Stuart C. Wimbush ◽  
...  

2020 ◽  
Vol 21 (6) ◽  
pp. 1161-1169
Author(s):  
Massimiliano Ignaccolo ◽  
Carlo De Michele

AbstractThe Z–R relationship is a scaling-law formulation, Z = ARb, connecting the radar reflectivity Z to the rain rate R. However, more than 100 Z–R relationships, with different values of the parameters, have been reported in literature. This abundance of relationships is in itself a strong indication that no one “physical” relationship exists, a state of affairs that we find similar to that of the protagonist of Luigi Pirandello’s novel One, No One and One Hundred Thousand. Nevertheless the “elevation” of a simple linear fit in the (logR, logZ) space to the role of “scaling law” is such a widespread tenet in literature that it eclipses the simple realization that the abundance of different intercepts and slopes reflects the inhomogeneous nature of rain, and, in ultimate analysis, the statistical variability existing between the number of drops and drop size distribution. Here, we “eliminate” the contribution of the number of drops by rescaling both reflectivity and rainfall rate to per unit drop variables, (Z, R) → (z, r), so that the remaining variability is due only to the variability of the drop size distribution. We use a worldwide database of disdrometer data to show that for the rescaled variables (z, r) only “one,” albeit approximate, scaling law exists.


2017 ◽  
Vol 38 (11) ◽  
pp. 1600-1606 ◽  
Author(s):  
María-Teresa Celis ◽  
Billmary Contreras ◽  
Patricia Rosenzweig Levy ◽  
Lucero Méndez ◽  
Francys Vejar ◽  
...  

2009 ◽  
pp. 21-39
Author(s):  
Vittoria Cerasi ◽  
Lisa Crosato

- The paper analyzes the change in the size distribution of Italian banking groups over the period 1999 to 2007 following a wave of M&As among large banks. Had this process increased the degree of concentration we would have expected greater credit rationing for small firms, given the central role of Italian banks in financing small firms. We measure this change through widely used measures of concentration on branches. First, we observe a steady increase in concentration that can be captured only by looking at the overall size distribution. Other measures do not perceive this change until the year 2007, when the very large banks merged. Second, by focusing on the banking groups that have been active players in M&As we do see a decline in concentration, since smaller players have caught up with the larger ones in terms of rate of size increase. This contrasts with the role of the new entries and the disappearance of banks following mergers, that has increased the dispersion of market shares. The implications are that: i) there is a credit termination risk due to the rise in active players' size, but ii) credit rationing may not occur due to a substitution effect in credit supply from new entries. Keywords: bank market structure; size distribution of banks; measures of concentration; credit rationing of SME; mergers and acquisitions Parole chiave: struttura dell'industria bancaria; distribuzione per dimensione delle banche; misure della concentrazione; razionamento del credito alle PMI; fusioni e acquisizioni Jel Classification: G21 - L11


1993 ◽  
Vol 27 (10) ◽  
pp. 19-34 ◽  
Author(s):  
R. I. Mackie ◽  
R. Bai

The paper examines the importance of size distribution of the influent suspension on the performance of deep bed filters and its significance with regard to modelling. Experiments were carried out under a variety of conditions using suspensions which were identical in every respect apart from their size distribution. The results indicate that the presence of coarse particles does increase the removal of fine particles. Deposition of fine particles leads to a greater headloss than deposition of large particles. Changes in size distribution with time and depth play an important role in determining the behaviour of a filter, and models of both removal and headloss development must take account of this.


2020 ◽  
Vol 30 (47) ◽  
pp. 2001136 ◽  
Author(s):  
Abdoulaye Djire ◽  
Xiang Wang ◽  
Chuanxiao Xiao ◽  
O. Charles Nwamba ◽  
Michael V. Mirkin ◽  
...  

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