Results 71 to 80 of about 12,066,635 (273)
Reduction of Sasakian manifolds [PDF]
arXiv, 1999 We show that the contact reduction can be specialized to Sasakian manifolds. We link this Sasakian reduction to K\"ahler reduction by considering the K\"ahler cone over a Sasakian manifold. We present examples of Sasakian manifolds obtained by $S^1$ reduction of standard Sasakian spheres.
arxiv
, 1999 The 1990s have seen a significant decline in the occurrence of violent crimes nationwide, especially in major metropolitan areas. Yet, the number of person-on-person crimes in which youth appear as either offenders or victims remains persistently high in
Anais Loizillon, Joseph Tierney
core
, 2001 This paper explores the utility of expanding the harm reduction paradigm to incorporate vulnerability reduction. The thrust of harm reduction interventions to date, particularly in injection drug use, has been risk reduction. Many interventions have been
Ezard, Nadine
core +1 more source
Application Capacity Evaluation of HJ-1-C towards Ice Disaster during On-orbit Test Period
Leida xuebao, 2014 On November 19, 2012, HJ-1-C was launched successfully, which is the first civil Synthetic Aperture Radar (SAR) satellite in China and is also the only S-band SAR on-orbit satellite in the world.
Zhang Wei, Wang Lei
doaj +1 more source
Control strategy for large‐scale fires near power transmission lines and its application
IET Generation, Transmission & Distribution, 2021 To prevent fires causing the power transmission lines trip, a control strategy including the methods of fire forecasting, fire monitoring and fire extinguishing for large‐scale fires under power transmission lines is proposed.
Chuanping Wu +5 more
doaj +1 more source
Polynomial-time kernel reductions [PDF]
arXiv, 2016 In the framework of computational complexity and in an effort to define a more natural reduction for problems of equivalence, we investigate the recently introduced kernel reduction, a reduction that operates on each element of a pair independently. This paper details the limitations and uses of kernel reductions.
arxiv
Three-dimensional matching is NP-Hard [PDF]
arXiv, 2020 The standard proof of NP-Hardness of 3DM provides a power-$4$ reduction of 3SAT to 3DM. In this note, we provide a linear-time reduction. Under the exponential time hypothesis, this reduction improves the runtime lower bound from $2^{o(\sqrt[4]{m})}$ (under the standard reduction) to $2^{o(m)}$.
arxiv
Solovay reduction and continuity [PDF]
arXiv, 2019 The objective of this study is a better understanding of the relationships between reduction and continuity. Solovay reduction is a variation of Turing reduction based on the distance of two real numbers. We characterize Solovay reduction by the existence of a certain real function that is computable (in the sense of computable analysis) and Lipschitz ...
arxiv
Spontaneous Dimensional Reduction?
, 2012 Over the past few years, evidence has begun to accumulate suggesting that spacetime may undergo a "spontaneous dimensional reduction" to two dimensions near the Planck scale.
Carlip, S.
core +1 more source
Downscaling Taiwan precipitation with a residual deep learning approach
Geoscience LettersIn response to the growing demand for high-resolution rainfall data to support disaster prevention in Taiwan, this study presents an innovative approach for downscaling precipitation data.
Li-Huan Hsu +6 more
doaj +1 more source