18 research outputs found

    Reconstruction of SU(5) Grand Unified Model In Noncommutative Geometry Approach

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    Based on the generalized gauge theory on M4×Z2×Z3M^4\times Z_2\times Z_3, we reconstructed the realistic SU(5) Grand Unified model by a suitable assignment of fermion fields. The action of group elements Z2Z_2 on fermion fields is the charge conjugation while the action of Z3Z_3 elements represent generation translation. We find that to fit the spontaneous symmetry breaking and gauge hierarchy of SU(5) model a linear term of curvature has to be introduced. A new mass relation is obtained in our reconstructed model.Comment: 16 pages, Late

    Communication Between Quantum Networks

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    Quantum networking is developing fast as an emerging research field. Distributing entangled qubits between any two locations in a quantum network is one of the goals of quantum networking, in which repeaters can be used to extend the length of entanglement. Although researchers focus extensively on problems inside one quantum network, further study on communication between quantum networks is necessary because the next possible evolution of quantum networking is the communication between two or more autonomous quantum networks. In this thesis, we adapted a time slotted model from the literature to study the inter quantum network routing problem. Quantum routing problem can be split into path selection and request scheduling. We focus on the latter considering the previous one received considerable interest in the literature. Five request scheduling policies are proposed to study the impact of preference for certain request types on entanglement generation rate. Experiments also demonstrate other factors should be considered in context of entanglement rate in communication between quantum networks, e.g., the number and distribution of requests and inter-network distance

    Dirac Neutrino Masses in NCG

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    Several models in NCG with mild changes to the standard model(SM)are introduced to discuss the neutrino mass problem. We use two constraints, PoincareËŠ\acute{e} duality and gauge anomaly free, to discuss the possibility of containing right-handed neutrinos in them. Our work shows that no model in this paper, with each generation containing a right-handed neutrino, can satisfy these two constraints in the same time. So, to consist with neutrino oscillation experiment results, maybe fundamental changes to the present version of NCG are usually needed to include Dirac massive neutrinos.Comment: 14 page

    Intelligent Technology Analysis in Electronic Engineering Automation Control

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    The reason why human society will develop more and more civilized and intelligent is because human beings are becoming more and more intelligent and their demand for scientific and technological intelligence is increasing. It is precisely because of human’s continuous pursuit of superior artificial intelligence that the improvement and development of China’s electronic engineering automation system has been promoted. Intelligent technology is also gradually applied to the automation system of electronic engineering, which brings great convenience to electric power engineering. The wide application of intelligent technology in electronic automation system is conducive to the improvement of the control level of electric power system in China and the improvement of people’s living standard. This paper mainly analyzes the intelligent technology in the electronic engineering automation control, and narrates its advantages, characteristics, present situation and application for your reference

    Finishing the euchromatic sequence of the human genome

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    The sequence of the human genome encodes the genetic instructions for human physiology, as well as rich information about human evolution. In 2001, the International Human Genome Sequencing Consortium reported a draft sequence of the euchromatic portion of the human genome. Since then, the international collaboration has worked to convert this draft into a genome sequence with high accuracy and nearly complete coverage. Here, we report the result of this finishing process. The current genome sequence (Build 35) contains 2.85 billion nucleotides interrupted by only 341 gaps. It covers ∼99% of the euchromatic genome and is accurate to an error rate of ∼1 event per 100,000 bases. Many of the remaining euchromatic gaps are associated with segmental duplications and will require focused work with new methods. The near-complete sequence, the first for a vertebrate, greatly improves the precision of biological analyses of the human genome including studies of gene number, birth and death. Notably, the human enome seems to encode only 20,000-25,000 protein-coding genes. The genome sequence reported here should serve as a firm foundation for biomedical research in the decades ahead
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