We study the hard color dipole-nucleon cross section within perturbative QCD and discuss its relation to observables in diffractive leptoproduction of heavy quarkonium. The dipole cross section calculated with the unintegrated gluon density of the nucleon substantially differs from the well-known perturbative form σdip ∼ b 2 for b > 0.3fm, where b is the transverse separation of the dipole. We ...

The stellar initial mass functions (IMFs) for the Galactic bulge, the Milky Way, other galaxies, clusters of galaxies, and the integrated stars in the Universe are composites from countless individual IMFs in star clusters and associations where stars form. These galaxy-scale IMFs, reviewed in detail here, are not steeper than the cluster IMFs except in rare cases. This is true even though low ...

This paper presents an investigation into the degree and nature of chemicalweathering during soil formation on a volcanic (phonolite) substrate on the southern slopes of Mt. Kilimanjaro in northern Tanzania. The high field strength elements Nb and Ta were used to estimate enrichments and depletions relative to the bedrock. The degree ofweatheringwas found to increasewith depth in the soil profi...

In this paper, we review estimation algorithms and applications of polarization orientation angle shifts induced by terrain slopes. We develop a unified analysis of estimation algorithms based on the circular polarization covariance matrix. The effect of radar frequency, scattering media, and polarimetric calibration will also be discussed. Applications to DEM generation, polarimetric SAR data ...

Twelve years of upper air data and surface observations across Iceland are used to investigate the connection between the difference of surface air temperature upstream and downstream of the Icelandic highlands and several parameters of the airflow, such as precipitation, static stability and wind speed. The data does not support the well-known concept of the heat of the foehn being a result of...

Inspired by two practical cases in Switzerland, the paper investigates a problem of elevated earth pressures downslope existing landslides. This is relevant for both permanent landslides and one-time events, particular interest area stable slope just below landslide high-pressure compression zone. Intuitively, there should be transition zone, within which high subside to far field (at rest) slo...

Abstract Landslides and slope failures are often caused by earthquakes. This study proposes a method to map earthquake-induced failure hazards that uses the analytic hierarchy process (AHP) geographic information system (GIS) for four districts where many were induced earthquakes (the 2018 Hokkaido Eastern Iburi, 2016 Kumamoto, 2008 Iwate-Miyagi Nairiku, 2004 Mid Niigata Prefecture earthquakes)...

Since the performance of earth slopes is controlled, in most cases, by the average material properties and pore pressures over the area of the slip surface, it is logical to consider the variability of the average values (rather than the variability between discrete points) in any probabilistic slope assessment. As demonstrated in the paper (El-Ramly et al. 2002), the variance of the spatial av...