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Transactions of Nonferrous Metals society of China 2013年第10期23卷 2833-2842页

作者： s.VENUKUMAR s.YALAGI s.MUTHUKUMARAN Department of Metallurgical and Materials Engineering National Institute of Technology

Friction stir spot welding with refilling by friction forming process （FssW-FFP） was successfully modified using filler plate. Both of this new refilling technique and conventional friction stir spot welding （FssW） process were used to weld A1 6061-T6 lap shear specimens and the results were compared. Effects of tool rotational speeds on mechanical and metallurgical properties in both the cases were studied. static shear strength of refilled weld samples was found to be better than those welded by conventional FssW process at all tool rotational speeds. This is explained in terms of effective increase in cross-sectional area of weld nugget due to addition of more material from filler plate, thereby eliminating the probe hole. Failure mechanisms were discussed and fracture surfaces were analyzed through scanning electron microscopy （sEM）. The hardness profile of the welds exhibited a W-shaped appearance in both the processes and the minimum hardness was measured in the HAZ.

关键词： AA6061-T6 A1 alloy friction stir spot welding FssW-FFP static shear strength

Tuning the microstructure for superb corrosion resistance in eutectic high entropy alloy

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Journal of Materials science & Technology 2022年第14期109卷 197-208页

作者： s.shuang Q.Yua X.Gao Q.F.He J.Y.Zhang s.Q.shi Y.Yang Department of Mechanical Engineering City University of Hong KongKowloon TongKowloonHong KongChina Department of Mechanical Engineering Hong Kong Polytechnic UniversityHung HomKowloonHong KongChina Department of Materials science and Engineering City University of Hong KongKowloon TongKowloonHong KongChina

In this work,we demonstrate that the corrosion resistance of the FeCrNiCoNb_(0.5) eutectic high entropy alloy(EHEA)can be tuned by controlling the size of its eutectic *** microstructure refinement,the EHEA exhibits a superb corrosion resistance in 1 M NaCl in terms of a very low corrosion current density and an ultra-high transpassviation potential,which outperforms a variety of other HEAs and conventional metals and *** the fundamental level,the microstructure refinement results in a rapid formation of a thick and compact passive film with less Cl-adsorption on the EHEA,which results in significant enhancement in its corrosion *** outcome of our research provides important insights into the design of corrosion resistant chemically complex alloys.

关键词： Eutectic high entropy alloy Passivation Transpassivation potential Microstructure size

Diversity, Distribution Pattern and Conservation status of the Plants Used in Liver Diseases/Ailments in Indian Himalayan Region

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Journal of Mountain science 2006年第1期3卷 28-47页

作者： s.s. samant shreekar Pant G.B. Pant Institute of Himalayan Environment and Development Himachal Unit Mohal-Kullu 175126 Himachal Pradesh India

In the Indian Himalayan Region, th studies focused on diversity of the plants used fo treating liver diseases/ailments have not been carried out so far. Therefore, the present attempt has been made to study the diversity, distribution pattern and conservation status of the plant species used fo treating liver diseases/ailments in that region. A tota of 138 species (35 species of trees, 22 shrubs and 8 herbs) belonging to 98 genera in 60 families hav been recorded. Amongst the families, Euphorbiacea (9 species), and altitudinal zone species) are rich in species. Traditionally, variou plant parts, such as roots/rhizomes/tubers (46 species), leaves (31), whole plants (30), barks (15) fruits (13), seeds and unspecified parts (8 each), and inflorescence (1) are used for the treatment of live diseases/ailments. 34 species are native, 3 ar endemic and 15 near endemic. 7 species ar categorized as Critically Endangered (Betula utilis) Endangered (Podophyllum hexandrum, Ephedra gerardiana, and Nardostachys grandiflora) and Vulnerable (Bergenia ligulata, B. stracheyi, and Hedychium spicatum) using new IUCN criteria Available chemical composition of plant parts used fo the treatment of liver diseases/ailments have beengiven. Assessment of the populations of threatened species, development of an appropriate strategy, action plan for the conservation and sustainable utilization of such components of plant diversity are suggested.

关键词： Indian Himalayan Region diversity liver ailments chemical composition native endemic critically endangered endangered

Magnetotelluric sounding in western Tibet

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Chinese science Bulletin 1997年第8期42卷 678-681页

作者： Ma, XB Kong, XR Yu, s Institute of Geophysics Chinese Academy of Sciences Beijing China

THE magnetotelluric sounding(MT)profile from Gyirong to sangehu in western Tibet indi-cates that the surveyed region is divided into four tectonic units by Yarlung Zangbo sutureZone(s.Z.),Bangongco-Nujiang *** Lugu **... 详细信息

关键词： magnetotelluric sounding conductivity structure of lithosphere high conductivity layer Tibet Gandise unit Qiangtang unit.

Adult neurogenesis and in vivo reprogramming:combining strategies for endogenous brain repair

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Neural Regeneration Research 2016年第11期11卷 1748-1749页

作者： Kathryn s.Jones Bronwen Connor Department of Pharmacology and Clinical Pharmacology Centre for Brain ResearchSchool of Medical SciencesFaculty of Medical and Health SciencesThe University of Auckland

Functional recovery of the human brain after injury, or slowing of a neurodegenerative disease is the ultimate goal of brain research. Many promising studies have identified key genes involved in the generation of neuroblasts and oligodendrocytes from adult neurogenic niches and determined their involvement in endogenous regeneration after injury. Interestingly,

关键词： gene Adult neurogenesis and in vivo reprogramming sVZ GFAP

Guest Editorial:special issue on recurrent dynamic neural networks:Theory and applications

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CAAI Transactions on Intelligence Technology 2023年第3期8卷 547-548页

作者： Long Jin Predrag s.stanimirović school of Information science and Engineering Lanzhou UniversityLanzhouChina Faculty of sciences and Mathematics University of NisNisSerbia

Recurrent dynamic neural network has been proven to be a powerful tool in the online solving of problems with consid-erable complexity and has been applied to various *** recent years,various recurrent dynamic neural networks have been developed to solve complex time‐varying problems,such as time‐varying matrix inversion,time‐varying nonlinear opti-misation,motion control of manipulators and so ***,some thorny issues remain,including,but not limited to,sensitivity to noises,slow convergent speed,and high computational complexity.

关键词： complexity. dynamic convergent

spherical extension property no longer true for domains in algebraic variety with isolated singularity Dedicated to Professor YANG Lo on the occasion of his 70th birthday

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science China Mathematics 2010年第2期53卷 259-262页

作者： YAU stephen s. T. Institute of Mathematics East China Normal University Department of Mathematics University of Illinois at Chicago

Let D be a domain in Cn. It is known that if D is a simply connected bounded domain in C with spherical real analytic boundary D, then every local biholomorphic map at boundary as above extends to a biholomorphic map from D onto the unit ball in Cn. As a consequence, a local biholomorphic map between D1 and D2 where D1 and D2 are simply connected domains in Cn with spherical real analytic boundaries can extend to a global biholomorphic map from D1 onto D2. If the boundary is algebraic, the simply connected condition in the above result can be dropped. In this note, we show that the above phenomenon is no longer true if domains are in algebraic varieties with isolated singularities.

关键词： spherical boundary holomorphic extension algebraic variety isolated singularity

New-onset of celiac disease during interferon-based therapy for hepatitis C

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Gastroenterology Report 2015年第1期3卷 83-85页

作者： Abhinav Vasudevan John s.Lubel Department of Gastroenterology Eastern HealthMelbourneVictoriaAustralia Eastern Health Clinical school Monash UniversityMelbourneVictoriaAustralia

We present the case of a patient who first developed symptoms of celiac disease while on interferon-based therapy for treatment of chronic hepatitis *** required hospital admission for symptom management and diagnostic work-up of severe *** made a rapid recovery with a gluten-free diet and was able to continue *** should be given to screening for celiac disease prior to the commencement of interferon-based therapy,particularly in highprevalence populations.

关键词： interferon celiac disease hepatitis C

Biological silicon nanoparticles improve Phaseolus vulgaris L. yield and minimize its contaminant contents on a heavy metals-contaminated saline soil

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Journal of Environmental sciences 2021年第8期33卷 1-14页

作者： Mohamed T.El-saadony El-sayed M.Desoky Ahmed M.saad Rania s.M.Eid Eman selem Ahmed s.Elrys Department of Agricultural Microbiology Faculty of AgricultureZagazig UniversityZagazig 44511Egypt Botany Department Faculty of AgricultureZagazig UniversityZagazig 44511Egypt Biochemistry Department Faculty of AgricultureZagazig UniversityZagazig 44511Egypt Agricultural Botany Department Faculty of AgricultureBenha University13736Egypt Botany and Microbiology Department Faculty of ScienceZagazig University44511Egypt soil science Department Faculty of AgricultureZagazig University44511ZagazigEgypt

The synthesis of biological silicon nano-particles(Bio-si-NPs)is an eco-friendly and lowcost *** is no study focusing on the effect of Bio-si-NPs on the plants grown on saline soil contaminated with heavy *** this study,an attempt was made to synthesis Bio-si-NPs using potassium silica florid substrate,and the identified Aspergillus tubingensis AM11 isolate that separated from distribution systems of the potable water.A twoyear field trial was conducted to compare the protective effects of Bio-si-NPs(2.5 and 5.0 mmol/L)and potassium silicate(10 mmol/L)as a foliar spray on the antioxidant defense system,physio-biochemical components,and the contaminants contents of Phaseolus vulgaris *** on saline soil contaminated with heavy *** findings showed that all treatments of Bio-si-NPs and potassium silicate significantly improved plant growth and production,chlorophylls,carotenoids,transpiration rate,net photosynthetic rate,stomatal conductance,membrane stability index,relative water content,free proline,total soluble sugars,N,P,K,Ca2+,K+/Na+,and the activities of peroxidase,catalase,ascorbic peroxidase and superoxide oxide *** of Bio-si-NPs and potassium silicate significantly decreased electrolyte leakage,malondialdehyde,H2 O2,O2·-,Na+,Pb,Cd,and Ni in leaves and pods of Phaseolus vulgaris *** to ***-si-NPs were more effective compared to potassium *** of Bio-si-NPs at the rate of 5 mmol/L was the recommended treatment to enhance the performance and reduce heavy metals content on plants grown on contaminated saline soils.

关键词： Bean silicon Nano-silicon Aspergillus tubingensis AM11 salinity Heavy metals

Impact of Electric Vehicle Aggregator with Communication Time Delay on stability Regions and stability Delay Margins in Load Frequency Control system

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Journal of Modern Power systems and Clean Energy 2021年第3期9卷 595-601页

作者： Ausnain Naveed sahin sonmez saffet Ayasun the Department of Electrical and Electronic Engineering Nigde Omer Halisdemir UniversityNigdeTurkey the Department of Electrical and Electronic Engineering Gazi UniversityAnkaraTurkey

This paper investigates the impact of electric vehicle(EV)aggregator with communication time delay on stability regions and stability delay margins of a single-area load frequency control(LFC)***,a graphical method characterizing stability boundary locus is *** a given time delay,the method computes all the stabilizing proportional-integral(PI)controller gains,which constitutes a stability region in the parameter space of PI ***,in order to complement the stability regions,a frequency-domain exact method is used to calculate stability delay margins for various values of PI controller *** qualitative impact of EV aggregator on both stability regions and stability delay margins is thoroughly analyzed and the results are authenticated by time-domain simulations and quasi-polynomial mapping-based root finder(QPmR)algorithm.

关键词： Communication time delay electric vehicle(EV)aggregator frequency regulation proportional-integral(PI)controller design stability delay margin stability region