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Epitaxial thin-film Pd_(1-x)fe_(x) alloy: a tunable ferromagnet for superconducting spintronics

Science China Materials 2021年第5期64卷 1246-1255页

作者： Alireza Esmaeili Igor V.Yanilkin Amir I.Gumarov Iskander R.Vakhitov Bulat f.Gabbasov Roman V.Yusupov Dmitriy A.Tatarsky Lenar R.Tagirov Institute of Physics Kazan Federal UniversityKazan 420008Russia Institute for Physics of Microstructures of RAS Nizhny Novgorod 603950Russia Zavoisky Physical-Technical Institute FRC Kazan Scientific Center of RASKazan 420029Russia

Thin epitaxial films of the palladium-rich Pd_(1-x)fe_(x) alloy were synthesized and extensively studied as a tunable ferromagnetic material for superconducting spintronics. The(001)-oriented Mg O single-crystal substrate and the composition range of x = 0.01–0.07 were chosen to support the epitaxial growth and provide the films with magnetic properties spanning from very soft ferromagnet for memory applications to intermediately soft and moderately hard for the programmable logic and circuit biasing, respectively. Dependences of the saturation magnetization, Curie temperature and three magnetic anisotropy constants on the iron content x were obtained for the first time from the analyses of the magnetometry and ferromagnetic resonance data. The experimental results were discussed based on existing theories of dilute ferromagnetic alloys. Simulation of the hysteresis loops within the Stoner-Wohlfarth model indicates the predominant coherent magnetic moment rotation at cryogenic temperatures. The obtained results were compiled in a database of magnetic properties of a palladium-iron alloy in a single-crystal thin-film form considered as a material for superconducting spintronics.

关键词： alloy ferromagnetic palladium

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A TESTING SYSTEM fOR STUDYING ANISOTROPY Of UNSATURATED SOILS

A TESTING SYSTEM FOR STUDYING ANISOTROPY OF UNSATURATED SOIL...

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中日岩土工程学术会议

作者： ABRAHAM C.f.CHIU Associate Professor Geotechnical Research Institute Hohai University Nanjing 210098 China

＜正＞ This study presents a triaxial stress path testing system equipped with local displacement transducers for unsaturated soils. The vertical and radial deformations of an unsaturated soil specimen can be monitored locally under different stress paths and suctions. Isotropic compression tests under constant suction were conducted on two unsaturated compacted fills. The test results showed a high degree of inherent anisotropy induced by compaction during specimen preparation. The effect of anisotropy diminishes as the applied confining stress increases. furthermore, simple triaxial stress path tests are proposed to determine the elastic stiffness parameters for cross-anisotropic soils.

关键词： Anisotropy Unsaturated Soils Stress Path Tests Local Displacement Transducer

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Periodicity and Solution of Rational Recurrence Relation of Order Six

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Applied Mathematics 2012年第7期3卷 729-733页

作者： Tarek f. Ibrahim Ibrahim Department of Mathematics Faculty of Sciences and arts (S. A.) King Khalid University Abha Saudi Arabia

Difference equations or discrete dynamical systems is diverse field whose impact almost every branch of pure and ap- plied mathematics. Every dynamical system an+1=f(an) determines a difference equation and vise versa. We ob-tain in this paper the solution and periodicity of the following difference equation. xn+1=(xnxn-2xn-4)/(xn-1xn-3xn-5, (1) n=0,1,... where the initial conditions x-5,x-4,x-3,x-2,x-1 and x0 are arbitrary real numbers with x-1,x-3 and x-5 not equal to be zero. On the other hand, we will study the local stability of the solutions of Equation (1). Moreover, we give graphically the behavior of some numerical examples for this difference equation with some initial conditions.

关键词： Difference Equation Solutions Periodicity Local Stability

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SEASONAL AND DIURNAL VARIATIONS Of PM_(1.0),PM_(2.5) AND PM_(10) IN THE ROADSIDE ENVIRONMENT Of HONG KONG

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China Particuology 2006年第6期4卷 312-315页

作者： K.f. Ho S.C. Lee S.W. Law Research Center of Urban Environmental Technology and Management Department of Civil and Structural Engineering Hong Kong Polytechnic University Hung Hom Kowloon Hong Kong China

PM1.0 （fine particles, with diameter 〈 1 pm）, PM2.5 （fine particles, with diameter 〈 2.5μm） and PM10 （coarse particles, with diameter 〈 10 μm） were measured at 24-hour intervals near a high-traffic road in Hong Kong, from October 2004 to September 2005. Mass concentrations were determined for the three particle fractions, averaging for PM1.0, PM2.5 and PM10, respectively, 44.5±18.4, 55.4±25.5 and 81.3±37.7μg·m^-3, PM2.5 was 3.7 times the U.S. EPA＇s annual NAAQS of 15 μg·m^-3,. Overall, PM1.0 accounted for 44 to 69% （average 57%） of PM10, while PM2.5 accounted for 58 to 82% （average 71%） in this study. The particulate masses showed obvious seasonal patterns with high concentrations in cold seasons and low in warm seasons, especially high concentrations of PM2.5-10 during the cold seasons. Diurnal variations of mass concentrations of PM2.5 were determined during July, showing two major peaks in the morning and afternoon rush hours.

关键词： PM1.0 PM2.5 PM10 seasonal variations roadside environment Hong Kong

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QCD as High Energy Limit of the Scalar Strong Interaction Hadron Theory

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Journal of Modern Physics 2013年第9期4卷 1171-1175页

作者： f. C. Hoh Dragarbrunnsg 55C 75320 Uppsala Sweden

This paper is an extension of the book of reference [1] below. QCD Lagrangian is derived from the same equations of motion for quarks used to construct the equations of motion for mesons and baryons in the scalar strong interaction hadron theory that accounts for many basic low energy data not covered by QCD. At high energies, the energetic quarks in a hadron can be far from each other and approximately free. Each quark is associated with a vector in an internal space characterizing its mass and charge. These spaces are interchangeable and provide a new symmetry equivalent to color symmetry in QCD. A quark in a meson has two “colors” and in a baryon three “colors”;the β function of QCD is 61%-92% greater in high energy interactions leading to baryons than that to mesons. This function enters the measurable running coupling constant and this prediction is testable against experiment. QCD, successful at high energies, is thus reconciled with the scalar strong interaction hadron theory and both complement each other.

关键词： QCD at High Energies Scalar Strong Interaction Internal Symmetry

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Selling :building partnerships 3rd ed. 3rd ed.

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1998年

作者： Bart A. Weitz Stephen B. Castleberry John f. Tanner Jr

来源：畅想之星图书光盘版（南... 评论

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Regulatory T cell dynamics in host response to tumor development

Regulatory T cell dynamics in host response to tumor develop...

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第六届全国免疫学学术大会

作者： f.Xiao-feng Qin Department of Immunology University of TexasMD Anderson Cancer CenterHoustonTXUSA 77030

Regulatory T cells (Tregs) exPressing the forkhead transcription factor foxp3 play a central role in the dominant control of immunological tolerance.

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MOST RECENT ACHIEVEMENTS Of LOST fOAM PROCESS APPLIED IN THE AUTOMOTIVE INDUSTRY

MOST RECENT ACHIEVEMENTS OF LOST FOAM PROCESS APPLIED IN THE...

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第四届中国（国际）铸造厂长（经理）会议

作者： Dr. f. Galati

＜正＞The lost foam process makes it possible to obtain aluminium or iron castings usingdisposable foam *** patterns are coated with a refractory wash,placed in flasks and then completelycovered with binderless sand;the flask is then vibrated in order to compact the *** pouring,the metal replaces exactly the foam pattern which is evacuated in the form

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Overview of the phytomedicine approaches against Helicobacter pylori

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World Journal of Gastroenterology 2014年第19期20卷 5594-5609页

作者： filipa f Vale Monica Oleastro Centro de Patogenese Molecular Unidade dos Retrovirus e Infeccoes AssociadasInstituto de Medicina Molecular e Instituto de Investigacao do Medicamento (iMed.ULisboa)Faculdade de FarmaciaUniversidade de LisboaLisboaPortugal Departamento de Doencas Infeciosas Instituto Nacional Saude Dr.Ricardo Jorge1649-016 LisboaPortugal

Helicobacter pylori(***)successfully colonizes thehuman stomach of the majority of the human *** infection always causes chronic gastritis,butmay evolve to serious outcomes,such as peptic ulcer,gastric carcinoma or mucosa-associated lymphoid tis-sue *** first line therapy recommend-ed by the Maastricht-4 Consensus Report comprises theuse of two antibiotics and a proton-pomp inhibitor,butin some regions failure associated with this treatmentis already undesirable ***,treatment failure isone of the major problems associated with *** in-fection and is mainly associated with bacterial *** order to counteract this situation,someeffort has been allocated during the last years in theinvestigation of therapeutic alternatives beyond *** include vaccines,probiotics,photodynamic inactivation and phage therapy,which are briefly revis-ited in this review.A particular focus on phytomedicine,also described as herbal therapy and botanical therapy,which consists in the use of plant extracts for medicinal purposes,is specifically addressed,namely considering its history,category of performed studies,tested com-pounds,active principle and mode of *** herbs already experienced are highly diverse and usually selected from products with a long history of employ-ment against diseases associated with *** infec-tion from each country own folk *** studies demonstrated that many phytomedicine products have an *** activity and gastroprotective ***-though the mechanism of action is far from being com-pletely understood,current knowledge correlates the beneficial action of herbs with inhibition of essential *** enzymes,modulation of the host immune system and with attenuation of inflammation.

关键词： Helicobacter pylori Alternative treatment Phytomedicine Herbal medicine Phytotherapy Botanical therapy Herb medicine Probiotics Antibiotic resistance

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Experimental Analysis of an Innovative High Efficiency Aluminium Billet Heater

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Journal of Iron and Steel Research International 2012年第S2期19卷 653-657页

作者： M.Bullo f.Dughiero M.forzan M.Zerbetto LEP Laboratory for ElectroheatDepartment of Industrial Engineering Università di Padova InovalabSrl

The paper presents the design procedure of a novel aluminum billet heater based upon the concept of inducing eddy-currents by rotating permanent magnets around a fixed *** industrial scale prototype has been realized following the directions of the described design procedure which is based upon numerical finite Elements *** comparisons between the results of numerical models with experimental ones are also presented.

关键词： induction heating permanent magnet finite element method

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