717,135 research outputs found
k-RNN: Extending NN-heuristics for the TSP
In this paper we present an extension of existing Nearest-Neighbor heuristics
to an algorithm called k-Repetitive-Nearest-Neighbor. The idea is to start with
a tour of k nodes and then perform a Nearest-Neighbor search from there on.
After doing this for all permutations of k nodes the result gets selected as
the shortest tour found. Experimental results show that for 2-RNN the solutions
quality remains relatively stable between about 10% to 40% above the optimum
Prospects for United States of America-China political and economic relations under Donald Trump's presidency
The purpose of this article was to introduce the possible future relations between China and the United States of America under Donald Trump’s presidency. The paper is divided into five sections: economy, real challenges, trade policy and industry, diplomacy. Each of them is introducing key issues in terms of the main topic. The secondary point of this article was to show the gravity of change after United States of America election results in December 2016 and the impact of this event on American policy toward China. The main conclusion which arised from the article is: USA-China relations during upcoming decade are going to be eminently tensed that it was before. Trade policy, Taiwan, strategic rapprochement of the United States of America with such countries as India and Russia, as well as innovation race across many industries, will remain a point of contention. The future of Sino-US relations will probably depend mostly on the emerging administration of the 45th President of the United States of America
Unitary Structure of the QCD Sum Rules and KYN and KY\Xi Couplings
New relations between QCD Borel sum rules for strong coupling constants of
K-mesons to baryons are derived. It is shown that starting from the sum rule
for the coupling constants and it
is straightforward to obtain corresponding sum rules for the , couplings, .Comment: 7 pages, 2 tables, International Workshop on Quantum
Chromodynamics:Theory and Experiment, QCD@Work-2005, Coversano(Bari, Italy),
16-20 June, 200
Monolithic Ge:Ga Detector Development for SAFARI
We describe the current status and the prospect for the development of
monolithic Ge:Ga array detector for SAFARI. Our goal is to develop a 64x64
array for the 45 -- 110 um band, on the basis of existing technologies to make
3x20 monolithic arrays for the AKARI satellite. For the AKARI detector we have
achieved a responsivity of 10 A/W and a read-out noise limited NEP (noise
equivalent power) of 10^-17 W/rHz. We plan to develop the detector for SAFARI
with technical improvements; significantly reduced read-out noise with newly
developed cold read-out electronics, mitigated spectral fringes as well as
optical cross-talks with a multi-layer antireflection coat. Since most of the
elemental technologies to fabricate the detector are flight-proven, high
technical readiness levels (TRLs) should be achieved for fabricating the
detector with the above mentioned technical demonstrations. We demonstrate some
of these elemental technologies showing results of measurements for test
coatings and prototype arrays.Comment: To appear in Proc. Workshop "The Space Infrared Telescope for
Cosmology & Astrophysics: Revealing the Origins of Planets and Galaxies".
Eds. A.M. Heras, B. Swinyard, K. Isaak, and J.R. Goicoeche
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