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SArISTU:Adaptive Trailing Edge Device(ATED)design process review

Chinese Journal of Aeronautics 2021年第7期34卷 187-210页

作者： A.CONCILIO I.DIMINO r.PECOrA Department of Adaptive Structures The Italian Aerospace Research Center(CIRA)via MaiorisesncCapua 81034Italia Department of Industrial Engineering Universita`di Napoli‘‘Federico II”Napoli 80138Italia

SArISTU was a big cooperation project granted by the European Commission,7th Framework Programme,carried out between 2011 and *** dealt with smart aeronautic structures,both morphing and sensored;its main target was to demonstrate the feasibility of designing,manufacturing and operating in representative environment,instrumented *** now,it represents the major effort carried out within the European Union on the development of adaptive architectures for air *** that big activity,the realization of an Adaptive Trailing Edge Device(ATED)for wing camber adaptations aimed at compensating the weight reduction following the fuel consumption during cruise was *** made the core of investigations target variable geometry aircraft components together with two other analyses concerning the development of shape-changing winglet and droop *** activities were conducted by the Italian Aerospace research Centre(CIrA)in tight cooperation with the University of Napoli,"Federico II",who coordinated a group of 12 different partners from 8 different nations(France,Germany,Greece,the Netherlands,Israel,Spain,Turkey,and Italy).In this paper,an integral synthesis of that work is reported,with a focus on the definition and realization of the components of the presented *** publication is in fact meant as the first part of a series that is aimed at overviewing the whole adaptive trailing edge development,till wind tunnel tests *** a concise report is a critical and harmonized review of what have been performed by many colleagues spread all over Europe,all of which are duly recalled in the reported bibliography where the reader may access more detailed information and *** detail,the paper starts with a general introduction of the concept and its aims,to move to the specs definition immediately ***,it deals with a short but comprehensive description of the main ATED components:structural skeleton,skin,actuation and s

关键词： Actuator network Aeroelasticity Adaptive structures Adaptive systems design Adaptive trailing edge kinematic systems Morphing SArISTU Sensor network Skins

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Energy Dissipation with Geometric Parameters in Unbaffled Surface Aerator

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Journal of Environmental Science and Engineering 2010年第2期4卷 80-84页

作者： B. kumar A.k. Patel A.r. rao Department of Civil Engineering Indian Institute of Technology Guwahati 781039 India Department of Civil Engineering Indian Institute of Science Bangalore 560012 India

The dissipation rate of turbulent kinetic energy （ ε ） is the key process parameters for mixing in surface aerators. At constant dynamic variables （rotational speed）, ε is greatly affected by the geometric parameters, such as impeller diameter, cross-sectional area of the tank, liquid height, rotor blade length and immersion height. By doing numerical computation by visimix, present work analyzes the effect of non-dimensional （which is non-dimensionalized through rotor diameter） geometric parameters on ε. With an increase in liquid height, there is an increase in the case of energy dissipation. In the case of tank area and blade length, it is vice versa. Energy dissipation is not affected by the variation in immersion height of the impeller.

关键词： Geometry energy dissipation mixing surface aerator

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A review of late-stage tungsten fuzz growth

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Tungsten 2022年第3期4卷 184-193页

作者： Jacob A.r.Wright Department of Materials Science and Metallurgy University of CambridgeCambridgeCB30FSUK

Tungsten will be used as the plasma-facing divertor material in the International Thermonuclear Experimental reactor(ITEr)fusion *** high temperatures and high ion fluxes,a‘fuzz’nanostructure forms on the tungsten surface with dramatically different properties and could contaminate the *** simulations and experimental observations have provided understanding of the initial fuzz formation process,there is debate over whether tungsten or helium migration is rate-limiting during late-stage growth,and the mechanisms by which tungsten and helium migrations ***,the proposed mechanisms are considered in *** is concluded that tungsten migration occurs by adatom diffusion along the fuzz *** helium migration through the porous fuzz to the tungsten bulk is also required for fuzz growth,for continued bubble growth and *** likely migrates due to ballistic penetration,although diffusion may *** is difficult to determine the limiting process,which may switch from helium penetration to tungsten adatom diffusion above a threshold *** for further research to clarify the mechanisms are then considered.A greater understanding of the fuzz formation mechanism is key to the successful design of plasma-facing tungsten components,and may have applications in forming porous tungsten catalysts.

关键词： Tungsten Tungsten fuzz Plasma-material interactions Fusion reactors

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Customization Using Fuzzy recommender Systems

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Journal of Donghua University(English Edition) 2004年第3期21卷 9-14页

作者： ronald r. Yager Machine Intelligence Institute Iona College New Rochelle NY 10801

We discuss some methods for constructing recommender systems. An important feature of the methods studied here is that we assume the availability of a description, representation, of the objects being considered for recommendation. The approaches studied here differ from collaborative filtering in that we only use preferences information from the individual for whom we are providing the recommendation and make no use the preferences of other collaborators. We provide a detailed discussion of the construction of the representation schema used. We consider two sources of information about the users preferences. The first are direct statements about the type of objects the user likes. The second source of information comes from ratings of objects which the user has experienced.

关键词： recommender system fuzzy logic preference.

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Exploring the structural and functional effect of prB by significant nsSNP in the coding region of rB1 gene causing retinoblastoma

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Science China(Life Sciences) 2010年第2期53卷 234-240页

作者： rajasekaran r rao Sethumadhavan Bioinformatics Division School of BiotechnologyChemical and Biomedical EngineeringVellore Institute of Technology

In this study,we identified the most deleterious nsSNP in rB1 gene through structural and functional properties of its protein (prB) and investigated its binding affinity with *** of 956 SNPs,we investigated 12 nsSNPs in coding region in which three of them (SNPids rs3092895,rs3092903 and rs3092905) are commonly found to be damaged by I-Mutant 2.0,SIFT and PolyPhen *** this effort,we modeled the mutant prB proteins based on these deleterious *** a comparison of total energy,stabilizing residues and rMSD of these three mutant proteins with native prB protein,we identified that the major mutation is from Glutamic acid to Glycine at the residue position of 746 of ***,we compared the binding efficiency of both native and mutant prB (E746G) with *** found that mutant prB has less binding affinity with E2F-2 as compared to native *** is due to sixteen hydrogen bonding and two salt bridges that exist between native type and E2F-2,whereas mutant type makes only thirteen hydrogen bonds and one salt bridge with *** on our investigation,we propose that the SNP with an id rs3092905 could be the most deleterious nsSNP in rB1 gene causing retinoblastoma.

关键词： retinoblastoma non synonymous SNP rB1 gene prB E2F-2

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Time-series analysis with a hybrid Box-Jenkins ArIMA

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Journal of Harbin Institute of Technology(New Series) 2004年第4期11卷 413-421页

作者： Dilli r Aryal 王要武 School of Management Harbin Institute of Technology Harbin 150001 China

Time-series analysis is important to a wide range of disciplines transcending both the physical and social sciences for proactive policy decisions. Statistical models have sound theoretical basis and have been successfully used in a number of problem domains in time series forecasting. Due to power and flexibility, Box-Jenkins ArIMA model has gained enormous popularity in many areas and research practice for the last three decades. More recently, the neural networks have been shown to be a promising alternative tool for modeling and forecasting owing to their ability to capture the nonlinearity in the data. However, despite the popularity and the superiority of ArIMA and ANN models, the empirical forecasting performance has been rather mixed so that no single method is best in every situation. In this study, a hybrid ArIMA and neural networks model to time series forecasting is proposed. The basic idea behind the model combination is to use each model’s unique features to capture different patterns in the data. With three real data sets, empirical results evidently show that the hybrid model outperforms ArIMA and ANN model noticeably in terms of forecasting accuracy used in isolation.

关键词： time series analysis ArIMA Box-Jenkins methodology artificial neural networks hybrid model

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AN OVErVIEW OF ADAkITE PETrOGENESIS

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Chinese Science Bulletin 2006年第3期51卷 258-268页

作者： PATErNO r. CASTILLO SCrIPPS INSTITUTION OF OCEANOGrAPHY UCSD LA JOLLA CA 92093-0212 USA

The term adakite was originally pro- posed to define silica-rich, high Sr/Y and La/Yb vol- canic and plutonic rocks derived from melting of the basaltic portion of oceanic crust subducted beneath volcanic arcs. It was also initially believed that ada- kite only occurs in convergent margins where young and thus still hot oceanic slabs are being subducted, but later studies have proposed that it also occurs in other arc settings where unusual tectonic conditions can lower the solidus of older slabs. Currently, ada- kite covers a range of arc rocks ranging from pristine slab melt, to adakite-peridotite hybrid melt, to melt derived from peridotite metasomatized by slab melt. Adakite studies have generated some confusions because (1) the definition of adakite combines com- positional criteria with a genetic interpretation (melt- ing of subducted basalt), (2) the definition is fairly broad and relies on chemistry as its distinguishing characteristic, (3) the use of high pressure melting experiment results on wet basalts as unequivocal proofs of slab melting and (4) the existence of ada- kitic rocks with chemical characteristics similar to adakites but are clearly unrelated to slab melting. Other studies have shown that adakitic rocks and a number of the previously reported adakites are pro- duced through melting of the mafic lower crust or ponded basaltic magma, high-pressure crystal frac- tionation of basaltic magma and low-pressure crystal fractionation of basaltic magma plus magma mixing processes in both arc or non-arc tectonic environ- ments. Despite the confusing interpretations on the petrogenesis of adakite and adakitic rocks, their in- vestigations have enriched our understanding of material recycling at subduction zones, crustal evolu- tionary processes and economic mineralization.

关键词：岩石成因论板块融合交代作用榴辉岩角闪岩太古代安山岩玄武岩俯冲带岩浆作用

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Creation and Evaluation of a Multi-sensory Virtual Assembly Environment

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International Journal of Automation and computing 2008年第2期5卷 163-173页

作者： Adrian r L Travis Department of Engineering University of Cambridge

The multi-modal information presentation, integrated into the virtual environment （VE）, has potential for stimulating different senses, improving the user＇s impression of immersion, and increasing the amount of information that is accepted and processed by the user＇s perception system. The increase of the useful feedback information may reduce the user＇s cognitive load, thus enhancing the user＇s efficiency and performance while interacting with VEs. This paper presents our creation of a multi-sensory virtual assembly environment （VAE） and the evaluation of the effects of multi-sensory feedback on the usability. The VAE brings together complex technologies such as constraint-based assembly simulation, optical motion tracking technology, and real-time 3D sound generation technology around a virtual reality workbench and a common software platform. The usability evaluation is in terms of its three attributes： efficiency of use, user satisfaction, and reliability. These are addressed by using task completion times （TCTs）, questionnaires, and human performance error rates （HPErs）, respectively. Two assembly tasks have been used to perform the experiments, using sixteen participants. The outcomes showed that the multi-sensory feedback could improve the usability. They also indicated that the integrated feedback offered better usability than either feedback used in isolation. Most participants preferred the integrated feedback to either feedback （visual or auditory） or no feedback. The participants＇ comments demonstrated that nonrealistic or inappropriate feedback had negative effects on the usability, and easily made them feel frustrated. The possible reasons behind the outcomes are also analysed by using a unifying human computer interaction framework. The implications, concluded from the outcomes of this work, can serve as useful guidelines for improving VE system design and implementation.

关键词： Usability virtual environment (VE) assembly simulation multi-sensory feedback task performance

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Photonuclear reactions on stable isotopes of selenium at bremsstrahlung end-point energies of 10-23 MeV

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Chinese Physics C 2024年第2期48卷 91-103页

作者： F.A.rasulova N.V.Aksenov S.I.Alekseev r.A.Aliev S.S.Belyshev I.Chuprakov N.Yu.Fursova A.S.Madumarov J.H.khushvaktov A.A.kuznetsov B.S.Yuldashev Joint Institute for Nuclear research DubnaRussia Institute of Nuclear Physics of the Academy of Sciences of the republic of Uzbekistan TashkentUzbekistan Faculty of Chemistry of Lomonosov Moscow State University MoscowRussia National research Center"kurchatov Institute" MoscowRussia Skobeltsyn Institute of Nuclear Physics of Lomonosov Moscow State University MoscowRussia Faculty of Physics of Lomonosov Moscow State University MoscowRussia Institute of Nuclear Physics AlmatyRepublic of Kazakhstan

In this study,experiments were performed at bremsstrahlung end-point energies of 10-23 MeV with the beam from the MT-25 microtron using theγ-activation *** experimental values of relative yields were compared with theoretical results obtained on the basis of TALYS with the standard parameters and the combined model of photonucleon *** isospin splitting in the combined model of photonucleon reactions allows describing experimental data on reactions with proton escape in the energy range from 10 to 23 ***,taking into account isospin splitting is necessary for a correct description of the decay of the giant dipole resonance.

关键词： bremsstrahlung photon cross section isospin splitting giant dipole resonance

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Ending the Use of Human Antimicrobials in Food Production:The Good,the Bad,and the Ugly

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Engineering 2022年第8期8卷 9-10页

作者： Timothy r.Walsh Department of Zoology University of OxfordOxford OX13SZUK Ineos Oxford Institute for Antimicrobial research(IOI) University of OxfordOxford OX13REUK

reducing the inappropriate use of antimicrobial drugs in food systems is a key priority for the Global Leaders Group on Antimicrobial resistance(GLG)[1].Although access to high-quality antimicrobials is important for animal and plant welfare,global leaders recognize that preventing the existential threat of antimicrobial resistance(AMr)will not be possible without reducing the use of human antimicrobials used in food systems[1].

关键词： Human drugs threat

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