54,866 research outputs found
The Forced Non-Linear Schroedinger Equation with a Potential on the Half-Line
In this paper we prove that the initial-boundary value problem for the forced
non-linear Schroedinger equation with a potential on the half-line is locally
and (under stronger conditions) globally well posed, i.e. that there is a
unique solution that depends continuously on the force at the boundary and on
the initial data. We allow for a large class of unbounded potentials. Actually,
for local solutions we have no restriction on the grow at infinity of the
positive part of the potential, and for global solutions very mild assumptions
that allow, for example, for exponential grow.Comment: 23 page
X-ray fluorescence spectroscopy from ions at charged vapor/water interfaces
X-ray fluorescence spectra from monovalent ions (Cs+) that accumulate from
dilute solutions to form an ion-rich layer near a charged Langmuir monolayer
are presented. For the salt solution without the monolayer, the fluorescence
signals below the critical angle are significantly lower than the detection
sensitivity and only above the critical angle signals from the bulk are
observed. In the presence of a monolayer that provides surface charges, strong
fluorescence signals below the critical angle are observed. Ion density
accumulated at the interface are determined from the fluorescence. The
fluorescent spectra collected as a function of incident x-ray energy near the
LIII edge yield the extended absorption spectra from the ions, and are compared
to recent independent results. The fluorescence data from divalent Ba2+ with
and without monolayer are also presented
and production and limits on anomalous , and couplings with D0 detector
The recent D0 results on Wgamma and Zgamma production are presented. First,
the cross section and the difference in rapidities between photons and charged
leptons for inclusive Wgamma production in egamma and mugamma final states are
discussed, then are the cross section and differential cross section as a
function of photon transverse momentum for Zgamma process. Finally, I present
the limits on anomalous WWgamma, ZZgamma and Zgammagamma couplings.Comment: 18 pages, 16 figures, review articl
Image retrieval with hierarchical matching pursuit
A novel representation of images for image retrieval is introduced in this
paper, by using a new type of feature with remarkable discriminative power.
Despite the multi-scale nature of objects, most existing models perform feature
extraction on a fixed scale, which will inevitably degrade the performance of
the whole system. Motivated by this, we introduce a hierarchical sparse coding
architecture for image retrieval to explore multi-scale cues. Sparse codes
extracted on lower layers are transmitted to higher layers recursively. With
this mechanism, cues from different scales are fused. Experiments on the
Holidays dataset show that the proposed method achieves an excellent retrieval
performance with a small code length.Comment: 5 pages, 6 figures, conferenc
Insulin Regulates Lipolysis and Fat Mass by Upregulating Growth/Differentiation Factor 3 in Adipose Tissue Macrophages
学位記番号:医博甲174
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