5,182 research outputs found
The Stability of RMB Exchange Rate and Its Perfection of Present Exchange Rate Mechanism
In the implement of Basel Accord, problems like regulatory capital arbitrage came up for the shortcomings of the accord. Securitization and other financial innovations have provided opportunities to reduce the regulatory capital requirements with little or no reduction in the overall economic risks. The possibility of regulatory capital arbitrage was caused by the inaccurate classification of the risks of different assets under Basel Accord. One of the routine methods is asset securitization, which will create value for banks while damaging the effect of the capital adequacy ratio as a prudential policy instrument. To deal with RCA (regulatory capital arbitrage), the most important is to match the regulatory capital to different assets and cut the motivation from the source so as to unify regulatory capital and economic capital. Key words: Capital Adequacy Ratio, Asset Securitization, Arbitrage Regulatio
Global stability and scattering theory for non-cutoff Boltzmann equation with soft potentials in the whole space: weak collision regime}
A Traveling Maxwellian represents a
traveling wave solution to the Boltzmann equation in the whole space
(for the spatial variable). The primary objective of this study is to
investigate the global-in-time stability of and its associated
scattering theory in space for the non-cutoff Boltzmann equation
with soft potentials when the dissipative effects induced by collisions are
{\it weak}. We demonstrate the following results: (i) exhibits
Lyapunov stability; (ii) The perturbed solution, which is assumed to satisfy
the same conservation law as , scatters in space
towards a particular traveling wave (with an explicit convergence rate), which
may not necessarily be . The key elements in the proofs involve
the formulation of the {\it Strichartz-Scaled Boltzmann equation}(achieved
through the Strichartz-type scaling applied to the original equation) and the
propagation of analytic smoothness.Comment: 27 page
BiSyn-GAT+: Bi-Syntax Aware Graph Attention Network for Aspect-based Sentiment Analysis
Aspect-based sentiment analysis (ABSA) is a fine-grained sentiment analysis
task that aims to align aspects and corresponding sentiments for
aspect-specific sentiment polarity inference. It is challenging because a
sentence may contain multiple aspects or complicated (e.g., conditional,
coordinating, or adversative) relations. Recently, exploiting dependency syntax
information with graph neural networks has been the most popular trend. Despite
its success, methods that heavily rely on the dependency tree pose challenges
in accurately modeling the alignment of the aspects and their words indicative
of sentiment, since the dependency tree may provide noisy signals of unrelated
associations (e.g., the "conj" relation between "great" and "dreadful" in
Figure 2). In this paper, to alleviate this problem, we propose a Bi-Syntax
aware Graph Attention Network (BiSyn-GAT+). Specifically, BiSyn-GAT+ fully
exploits the syntax information (e.g., phrase segmentation and hierarchical
structure) of the constituent tree of a sentence to model the sentiment-aware
context of every single aspect (called intra-context) and the sentiment
relations across aspects (called inter-context) for learning. Experiments on
four benchmark datasets demonstrate that BiSyn-GAT+ outperforms the
state-of-the-art methods consistently
Switchable coupling between charge and flux qubits
We propose a hybrid quantum circuit with both charge and flux qubits
connected to a large Josephson junction that gives rise to an effective
inter-qubit coupling controlled by the external magnetic flux. This switchable
inter-qubit coupling can be used to transfer back and forth an arbitrary
superposition state between the charge qubit and the flux qubit working at the
optimal point. The proposed hybrid circuit provides a promising quantum memory
because the flux qubit at the optimal point can store the tranferred quantum
state for a relatively long time.Comment: 5 pages, 1 figur
Angular Reconstruction of a Lead Scintillating-Fiber Sandwiched Electromagnetic Calorimeter
A new method called Neighbor Cell Deposited Energy Ratio (NCDER) is proposed
to reconstruct incidence position in a single layer for a 3-dimensional imaging
electromagnetic calorimeter (ECAL).This method was applied to reconstruct the
ECAL test beam data for the Alpha Magnetic Spectrometer-02 (AMS-02). The
results show that this method can achieve an angular resolution of 7.36\pm 0.08
/ \sqrt(E) \oplus 0.28 \pm 0.02 degree in the determination of the photons
direction, which is much more precise than that obtained with the
commonly-adopted Center of Gravity(COG) method (8.4 \pm 0.1 /sqrt(E) \oplus
0.8\pm0.3 degree). Furthermore, since it uses only the properties of
electromagnetic showers, this new method could also be used for other type of
fine grain sampling calorimeters.Comment: 6 pages, 8 figure
Sparse-Representation-Based Direct Minimum L
A sparse-representation-based direct minimum Lp-norm algorithm is proposed for a two-dimensional MRI phase unwrapping. First, the algorithm converts the weighted-Lp-norm-minimization-based phase unwrapping problem into a linear system problem whose system (coefficient) matrix is a large, symmetric one. Then, the coefficient-matrix is represented in the sparse structure. Finally, standard direct solvers are employed to solve this linear system. Several wrapped phase datasets, including simulated and MR data, were used to evaluate this algorithm’s performance. The results demonstrated that the proposed algorithm for unwrapping MRI phase data is reliable and robust
Protective effect of Radix Bupleuri extract against liver cirrhosis in rats
Purpose: To explore the effect of Radix Bupleuri extract (RBE) on diethylnitrosamine (DEN)-induced liver cirrhosis in rats.Methods: Rats were injected with DEN once a week for 8 weeks to induce liver cirrhosis. Some DENinduced rats were also treated with RBE, which was obtained by extracting dried Radix Bupleuri in water, for 8 weeks. Afterwards, biochemical indices and oxidative stress markers were assessed.Results: RBE significantly decreased serum concentrations of both alanine transaminase (137.3 ± 4.4 U/L, p < 0.01) and aspartate aminotransaminase (152.1 ± 3.4 U/L, p < 0.01) in DEN-induced rats at week 8. In addition, RBE significantly decreased malondialdehyde (0.13 ± 0.02 umol/L, p < 0.01) and superoxide dismutase (0.73 ± 0.04 U/mg protein, p < 0.01) levels in DEN-induced rats (p < 0.01).Conclusion: RBE exhibits a protective effect against DEN-induced liver cirrhosis in rats. Thus, it may have the potential to be used to treat liver cirrhosis in clinical settings.Keywords: Radix Bupleuri, Liver cirrhosis, Anti-oxidant, Diethylnitrosamine, Alanine transaminase, Aspartate aminotransaminas
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