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Inelastic Cotunneling Current and Shot Noise of an Interacting Quantum Dot with Ferromagnetic Correlations

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Communications in Theoretical Physics 2007年第12期48卷 1099-1106页

作者： Norman j.M.Horing Department of Physics and Engineering Physics Stevens Institute of TechnologyHobokenNew Jersey 07030USA

We explore inelastic cotunneling through a strongly Coulomb-blockaded quantum dot attached to twoferromagnetic leads in the weak coupling limit using a generic quantum Langevin equation *** first developa B1och-type equation microscopically to describe the cotunneling-induced spin relaxation dynamics,and then developexplicit analytical expressions for the local magnetization,current,and its *** this basis,we predict a novelzero-bias anomaly of the differential conductance in the absence of a magnetic field for the anti-parallel configuration,and asymmetric peak splitting in a magnetic ***,for the same system with large polarization,we find a negativezero-frequency differential shot noise in the low positive bias-voltage region. All these effects are ascribed to rapidspin-reversal due to underlying spin-flip cotunneling.

关键词： quantum dot spin polarized tunneling cotunneling

Time Varying Gravitational Constant G via Entropic Force

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Communications in Theoretical Physics 2011年第10期56卷 691-694页

作者： M.r.Setare D.Momeni Department of Science Payame Noor UniversityBijarIran Department of Physics Faculty of ScienceTarbiat Moallem UniversityTehran 15614Iran

If the uncertainty principle applies to the Verlinde entropic idea, it leads to a new term in the Newton＇s second law of mechanics in the Planck＇s scale. This curious velocity dependent term inspires a frictional feature of the gravity. In this short letter we address that this new term modifies the effective mass and the Newtonian constant as the time dependent quantities. Thus we must have a running on the value of the effective mass on the particle mass m near the holographic screen and the G. This result has a nigh relation with the Dirac hypothesis about the large numbers hypothesis （L.N.H.）. We propose that the corrected entropie terms via Verlinde idea can be brought as a holographic evidence for the authenticity of the Dirac idea.

关键词： gravitational constant general relativing

Bonding quality of Yb:Y_3Al_5O_(12)/Y_3Al_5O_(12) composite crystals

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Science China(Technological Sciences) 2008年第9期51卷 1457-1463页

作者： Bourdet GILBET j C CHANTELOUP Ecole Polytechnique Laboratoire pour l'Utilisation des Lasers IntensesRoute de Saclay Palaiseau 91128 France

The Yb:Y3Al5O12/Y3Al5O12 (Yb:YAG/YAG) composite crystals were prepared by thermal bonding method with different technological parameters. The bonding in-terface of the composite crystals were observed by optical microscope, scanning electron microscope, and atom force microscope. The light scattering experiments for bonding interface of the composite crystals were measured by the laser and transmission spectra. All experiments show that high-quality Yb:YAG/YAG com-posite crystals without space transition layer and light scattering on the bonding interface can be obtained by thermal bonding method under appropriate technological parameters.

关键词： Yb:YAG/YAG bonding quality light scattering transmission spectra

Moderate deviations from the hydrodynamic limit of the symmetric exclusion process

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Science China Mathematics 2003年第5期46卷 577-592页

作者：高付清 j.Quastel School of Mathematics and Statistics Wuhan University Wuhan 430072 China Departments of Mathematics and Statistics University of Toronto Toronto ON M5S 3G3 Canada

We investigate the moderate deviations from the hydrodynamic limit of the empirical density ofparticles and obtain a moderate deviation principle for a symmetric exclusion process.

关键词： exclusion process, hydrodynamic limit, large deviations, moderate deviations.

Plant-based nutrition for healthcare professionals： implementing diet as aprimary modality in the prevention and treatment of chronic disease

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journal of Geriatric Cardiology 2017年第5期14卷 355-368页

作者： julieanna Hever raymond j Cronise To Your Health Fitness and Nutrition Beverly Hills CA USA Thermogenex Huntsville AL USA

Cardiovascular disease remains the world＇s leading cause of death. Yet, we have known for decades that the vast majority of athero-sclerosis and its subsequent morbidity and mortality are influenced predominantly by diet. This paper will describe a health-promoting wholefood, plant-based diet; delineate macro- and micro-nulxition, emphasizing specific geriatric concerns; and offer guidance to physicians andother healthcare practitioners to support patients in successfully utilizing nutrition to improve their health.

关键词： Aging Health span Plant-based nutrition Preventive medicine Vegetarian

A new path to highly conducting n-dopedπ-conjugated polymers

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Science China Chemistry 2023年第1期66卷 4-6页

作者： jean-Luc Bredas john r.reynolds Department of Chemistry and Biochemistry The University of ArizonaTucsonArizona 85721-0088United States School of Chemistry and Biochemistry School of Materials Science and EngineeringGeorgia Tech Polymer NetworkCenter for Organic Photonics and ElectronicsGeorgia Institute of TechnologyAtlantaGeorgia 30332-0400United States

In an article recently published in Nature[1],Fei Huang,Yong Cao,and their co-workers report on aπ-conjugated polymer,poly(benzodifurandione),PBFDO,prepared by an oxidative polymerization and whose continuous backbon... 详细信息

关键词： conjugated conducting backbone

Suppression of Meloidogyne javanica by antagonistic and plant growth-promoting rhizobacteria

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journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2005年第6期6卷 496-501页

作者：李斌谢关林 SOAD A COOSEMANS j Institute of Biotechnology Zhejiang University Hangzhou 310029 China Laboratory of Phytopathology and Plant Protection Katholieke Universiteit Leuven Leuven Belgium

Four rhizobacteria selected out of over 500 isolates from rhizosphere of the vegetables in China were further studied for suppression of the root-knot nematode and soil-borne fungal pathogens in laboratory and greenhouse in Belgium. They were identified as Brevibacillus brevis or Bacillus subtilis by Biolog test and partial 16s rDNA sequence comparison. They not only inhibited the radial growth of the root-infecting fungi rhizoctonia solani SX-6, Pythium aphanidermatum ZjP-1 and Fusarium oxysporum ***. cucumerinum ZjF-2 in vitro, but also exhibited strong nematicidal activity by killing the second stage larvae of Meloidogyne javanica to varying degrees in the greenhouse. The toxic principles of bacterium B7 that showed the highest juvenile mortality were partially characterized. The active factors were heat stability and resistance to extreme pH values. B7 used either as seed dressing or soil drench significantly reduced the nematode populations in the rhizosphere and enhanced the growth of mungbean plants over the controls in the presence or absence of r. solani.

关键词： Biocontrol Meloidogyne javanica Mungbean rhizobacteria rhizoctonia solani

High contrast ratio,high uniformity multiple quantum well spatial light modulators

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journal of Semiconductors 2010年第3期31卷 62-65页

作者：黄寓洋刘惠春 Wasilewski Z r Buchanan M Laframboise S r 杨晨崔国新边历峰杨辉张耀辉 Institute of Semiconductors Chinese Academy of Sciences Suzhou Institute of Nano-Tech and Nano-Bionics Chinese Academy of Sciences Institute for Microstructural Sciences National Research CouncilOttawa KIA 0R6Canada

Our latest research results on GaAs-A1GaAs multiple quantum well spatial light modulators are presented. The thickness uniformity of the epitaxial layers across the 3-inch wafer grown by our molecular beam epitaxy is better than 0.1% and the variation of cavity resonance wavelength within the wafer is only 0.9 nm. A contrast ratio （Cr） of 102 by varying bias voltage from 0 to 6.7 V is achieved after fine tuning the cavity by etching an adjust layer. Both theoretical and experimental results demonstrate that incorporating an adjust layer is an effective tuning method for obtaining high Cr.

关键词： spatial light modulator multiple quantum well uniformity contrast ratio adjust layer matching condition

Approach to a patient with pulmonary hypertension

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journal of Geriatric Cardiology 2019年第6期16卷 478-481页

作者： Chakradhari Inampudi Anna r Hemnes Alexandros Briasoulis Division of Cardiovascular Diseases University of Iowa Hospitals and Clinics Iowa City Iowa USA Division of Allergy Pulmonary and Critical Care Medicine Vanderbilt University Medical Center Nashville Tennessee USA

Pulmonary hypertension is a common clinical condition that can complicate various cardiac and respiratory abnormalities. Interest in pulmonary hypertension has grown remarkably among the scientific community in the last decade. It is now clear based on the scientific advances have paved the way in understanding the effects of abnormal pulmonary hemodynamics development and its antecedent consequences on the right heart in reducing the quality of life and survival of the patient.

关键词： Pulmonary arterial hypertension