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CLAS+FROST: new generation of photoproduction experiments at Jefferson Lab.

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Chinese Physics C 2009年第12期33卷 1205-1209页

作者： e. Pasyuk Arizona State University Tempe AZ 85287 USA Jefferson Laboratory Newport News VA 23606 USA

A large part of the experimental program in Hall B of the Jefferson Lab is dedicated to baryon spectroscopy. Photoproduction experiments are essential part of this program. CeBAF Large Acceptance Spectrometer （CLAS） and availability of circularly and linearly polarized tagged photon beams provide unique conditions for this type of experiments. Recent addition of the Frozen Spin Target （FROST） gives a remarkable opportunity to measure double and triple polarization observables for different pseudo-scalar meson photopro- duction processes. For the first time, a complete or nearly complete experiment becomes possible and will allow model independent extraction of the reaction amplitude. An overview of the experiment and its current status is presented.

关键词： photoproduction double polarization baryon resonance

Vector-mode multiplexing brings an additional approach for capacity growth in optical fibers

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Light(Science & Applications) 2018年第1期7卷 1031-1033页

作者： Alan e Willner Department of electrical engineering University of Southern CaliforniaLos AngelesCA 90089-2565USA

The paper‘Direct fiber vector eigenmode multiplexing transmission seeded by integrated optical vortex emitters’by J Liu1 has successfully demonstrated that different data-carrying vector modes can be used to increase capacity through data-carrying,full-vectorial fiber eigenmode multiplexing communications in circular optical *** work uses compact,integrated optics to achieve capacity scaling by directly exploiting orthogonal spatial vector eigenmodes.

关键词： optical fiber multiplexing

Interaction Between Massive and Massless Gravitons by Perturbing Topological Field Theory

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Communications in Theoretical Physics 2012年第2期57卷 241-244页

作者： e.Koorambas 8A Chatzikosta 11521 AmpelokipiAthensGreece

We test the Wu gauge theory of gravity with massive gravitons in the perturbing topological field theory *** show that the computation of the correlation function between massive and massless gravitons is reported up to 4-loop and appears to be unaffected by radiative *** result ensures the stability of the linking number between massive and massless gravitons with respect to the local perturbation,a result with potential wider applications in cosmology.

关键词： gauge field quantum gravity dark matter and dark energy topological field theory

WNT/β-catenin pathway and circadian rhythms in obsessive-compulsive disorder

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Neural Regeneration Research 2022年第10期17卷 2126-2130页

作者： Alexandre Vallée Yves Lecarpentier Jean-Noël Vallée Department of Clinical Research and Innovation(DRCI) Foch HospitalSuresnesFrance Centre de Recherche Clinique Grand Hôpital de l’Est Francilien(GHEF)MeauxFrance Laboratoire de Mathématiques et Applications(LMA) Universitéde PoitiersPoitiersFrance Centre Hospitalier Universitaire(CHU)Amiens Picardie UniversitéPicardie Jules Verne(UPJV)AmiensFrance

The neuropsychiatric disease named obsessive-compulsive disorder is composed by obsessions and/or ***-compulsive disorder etiologies are ***,numerous mechanisms in several localizations are *** studies showed that both glutamate,inflammatory factors and oxidative stress could have main functions in obsessive-compulsive *** synthase kinase-3β,the major negative controller of the WNT/β-catenin pathway is upregulated in obsessive-compulsive *** obsessive-compulsive disorder,some studies presented the actions of the different circadian clock ***/β-catenin pathway and circadian clock genes appear to be ***,this review focuses on the interaction between circadian clock genes and the WNT/β-catenin pathway in obsessive-compulsive disorder.

关键词： circadian rhythms glutamatergic pathway inflammation obsessive-compulsive disorder oxidative stress WNT/β-catenin pathway

The Coupling Constants *** electroweak Model with an SU（4）PS ×SU（4）eW Unification Symmetry

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Communications in Theoretical Physics 2007年第5期47卷 879-882页

作者： A.e. Bernardini Department of Cosmic Rays and Chronology State University of Campinas P.O. Box 6165 13083-970 Campinas SPBrazil

We introduce the sequence of spontaneous symmetry breaking of a coupling between Pati-Salam and electroweak symmetries SU（ 4 ）PS × SU（ 4 ）eW in order to establish a mathematically consistent relation among the coupling constants at grand unification energy scale. With the values of baryon minus lepton quantum numbers of known quarks and leptons, by including right-handed neutrinos, we can lind the mixing angle relations at different energy levels up to the electromagnetic U（1）eM scale.

关键词： electroweak unification gauge symmetry coupling constants

The future of underground spatial planning and the resulting potential risks from the point of view of mining subsidence engineering

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International Journal of Mining Science and Technology 2020年第1期30卷 93-98页

作者： Carolina Brücker Axel Preuβe Institute for Mine Surveying Mining Subsidence Engineering and Geophysics in MiningRWTH Aachen UniversityWüllnerstr.2Aachen 52062Germany

The topic of ground movements in Germany has been studied extensively in the past,especially in the field of active *** active hard coal mines in Germany were finally shut down in 2018 and lignite mining is expected to take place only until *** so-called long-term liabilities of the mine operators in Germany include,among other things,the long-term guarantee of stability and thus the monitoring of ground *** far,the economic use of underground mining in Germany was mainly the supply of raw *** the future,the underground storage of compressed air,methane or hydrogen will play an important role in renewable energy supply and climate ***,the underground storage space will become more important and the spatial planning is essential to ensure availability of safe underground openings for the various options of environmentally friendly energy ***,this renewed usage of underground openings may also bring new and sometimes unknown challenges of geomechanical *** aftermath of hard coal and lignite mining will be an increasing challenge in mining subsidence *** the other hand,new possibilities due to underground spatial planning may lead to subsidence and/or heaving of the upper surface.

关键词： Mining Surveying Underground spatial planning Mining engineering Renewable energies

FSCIL-eACA: Few-Shot Class-Incremental Learning Network Based on embedding Augmentation and Classifier Adaptation for Image Classification

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Chinese Journal of electronics 2024年第1期33卷 139-152页

作者： Ruru ZHANG Haihong e Meina SONG School of Computer Science Beijing University of Posts and Telecommunications education Department Information Network engineering Research Center Beijing University of Posts and Telecommunications

The ability to learn incrementally is critical to the long-term operation of AI systems. Benefiting from the power of few-shot class-incremental learning(FSCIL), deep learning models can continuously recognize new classes with only a few samples. The difficulty is that limited instances of new classes will lead to overfitting and exacerbate the catastrophic forgetting of the old classes. Most previous works alleviate the above problems by imposing strong constraints on the model structure or parameters, but ignoring embedding network transferability and classifier adaptation(CA), failing to guarantee the efficient utilization of visual features and establishing relationships between old and new classes. In this paper, we propose a simple and novel approach from two perspectives: embedding bias and classifier bias. The method learns an embedding augmented(eA) network with cross-class transfer and class-specific discriminative abilities based on self-supervised learning and modulated attention to alleviate embedding bias. Based on the adaptive incremental classifier learning scheme to realize incremental learning capability,guiding the adaptive update of prototypes and feature embeddings to alleviate classifier bias. We conduct extensive experiments on two popular natural image datasets and two medical datasets. The experiments show that our method is significantly better than the baseline and achieves state-of-the-art results.

关键词： Training Adaptation models Visualization Image recognition Prototypes Self-supervised learning Power capacitors

Multifunctional transition and temperature-responsive contact lenses

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Light(Science & Applications) 2023年第12期12卷 2624-2635页

作者： Ahmed e.Salih Haider Butt Department of Mechanical engineering Khalifa UniversityAbu DhabiUAE

Smart contact lenses have recently gained traction due to their functionalization as noninvasive diagnostic and therapeutic wearables that can address several ocular ***,multifunctional contact lenses exhibiting UV-transition and temperature-responsive capabilities were developed utilizing chromogenic materials that were integrated simultaneously into poly(2-hydroxyethyl methacrylate)(pHeMA)contact *** functionalities of the contact lenses were optically evaluated in both their activated and non-activated *** contact lenses offered excellent UV and blue light blocking capabilities(~45%)at their inactive *** activated via UV exposure,the transparent lenses darkened instantaneously and absorbed portions of the visible light *** absorption intensity and transient discoloration of the transition lenses relied primarily on the utilized photochromic ***,the temperature-responsive contact lenses exhibited distinct colorimetric variations in response to temperature changes within the physiological range(33-38℃).The maximum sensitivity of the thermochromic lens was 8%transmitted light per Celsius degree *** and morphological analysis indicated the adequacy of the contact ***,the multifunctional contact lenses can be deployed as smart wearables to manage ophthalmic deficiencies that are deterred by UV radiations and variations in ocular surface temperature.

关键词： temperature spectrum material

Aligned carbon nanotubes for lithium-ion batteries:A review

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Nano Research 2023年第11期16卷 12384-12410页

作者： Chinaza e.Nwanno Wenzhi Li Department of Physics Florida International UniversityMiamiFL 33199USA

Nanoscale materials are gaining massive attention in recent years due to their potential to alleviate the present electrochemical electrode *** high conductivity(both thermally and electrically),high chemical and electrochemical stability,exceptional mechanical strength and flexibility,high specific surface area,large charge storage capacity,and excellent ionadsorption,carbon nanotubes(CNTs)remain one of the most researched of other nanoscale materials for electrochemical energy *** than having them packed at random,CNTs perform better when packed/grown to order,vertically or horizontally aligned to a *** study presents an overview of the impact of CNT alignment on the electrochemical performance of lithium-ion batteries(LIBs).The unique properties of vertically aligned CNTs(VACNTs)for LIB application were ***,the mechanisms of charge storage and electrochemical performances in VACNT-based(pristine and composites)anodes and cathodes of LIBs were succinctly *** the end,the existing challenges and future directions in the field were also briefly discussed.

关键词： nanoscale vertically aligned carbon nanotubes(VACNTs) composites lithium-ion batteries(LIBs) anodes cathodes