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Latest results from GRAAL collaboration

Chinese physics C 2009年第12期33卷 1249-1253页

作者： V. Vegna V. Bellini j.p. Bouquet L. Casano A. D'Angelo j.p. didelez R. Di Salvo A. Fantini D. Franco G. Gervino F. Ghio G. Giardina B. Girolami A. Giusa M. Guidal E. Hourany A.S. Ignatov R. Kunnel A. Lapik A. Lleres p. Levi Sandri F. Mammoliti G. Mandaglio M. Manganaro M. Moricciani A.N. Mushkarenkov V.G. Nedorezov C. Randieri D. Rebreyend N.V. Rudnev G. Russo C. Schaerf M.L. Sperduto M.C. Sutera A.Turinge Dip. di Fisica Università degli Studi di Roma 'Tor Vergata' via della Ricerca Scientifica 1 I-00133 Roma Italy INFN - Sezione di Roma 'Tor Vergata' via della Ricerca Scientifica 1 I-00133 Roma Italy Dip. di Fisica e Astronomia Università di Catania via Santa Sofia 44 I-95123 Catania Italy INFN - Sezione di Catania via Santa Sofia 44 I-95123 Catania Italy LpSC Universit Joseph Fourier Grenoble 1 CNRS/IN2P3 Institut National Polytechnique de Grenoble 53 Avenue des Martyres 38026 Grenoble France IpNO Universit de Paris-Sud 11 CNRS/IN2P3 15 rue Georges Clemenceau 91406 Orsay France Dip. di Fisica Sperimentale Università di Torino via P.Giuria I-00125 Torino Italy INFN - Sezione di Torino via P.Giuria I-00125 Torino Italy Istituto Superiore di Sanità viale Regina Elena 299 I-00161 Roma Italy INFN - Sezione di Roma piazzale Aldo Moro 2 I-00185 Roma Italy Dip. di Fisica Universitàdi Messina salita Sperone 31 I-98166 Messina Italy Institute for Nuclear Research RAS 117312 Moscow Russia INFN - Laboratori Nazionali di Frascati via E.Fermi 40 I-00044 Frascati Italy INFN - Sezione di Catania via Santa Sofia 44 I-95123 Catania Italy

The GRAAL experimental set-up consists of a polarized and tagged photon beam that covers an energy range from a minimum of 600 MeV up to a maximum of 1500 MeV, of a liquid Hydrogen or Deuterium target and of the 4π Lagrange detector optimized for photon detection. It allows the study of pseudo-scalar and vector meson photoproduCtion on the nucleon in the energy range corresponding to the second and the third resonance regions. In the following, the ∑ beam asymmetries in η and π0 photoproduction on quasi-free nucleon are shown. Also single and double polarization observables in K＋A photoproduction on free proton are shown; they are important to confirm the role of new or poorly known resonances in the 1900 MeV mass region.

关键词： polarized photon meson photoproduction polarization observables

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INTERACTIONS BETWEEN KETONES AND AMINES IN pHOTOINITIATING SYSTEMS USED FOR RADICAL pOLYMERIZATION

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Chinese journal of polymer Science 1990年第1期8卷 51-60页

作者：吴世康 FOUASSIER j.p. Laboratoire

Time resolved laser spectroscopy and GC/MS were used to investigate the primary processes and the side reactions occurring in benzophenone and chlorothioxanthone/amine systems used as photoinitiators of radical polymerization. The discrepancy observed between the experimental data and the expected behaviour is accounted for by detrimental chemical reaction involving the ketone triplet state, the ketyl radical and the amine-derived radical.

关键词： photoinitiating systems photopolymerization Benzophenone/Amine system Chlorothioxanthone/Amine system Light absorbing transient (LAT).

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Secondary Silicates as a Barrier to Carbon Capture and Storage in Deccan Basalt

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Acta Geologica Sinica(English Edition) 2020年第3期94卷 861-876页

作者： Amit KUMAR j.p. SHRIVASTAVA Department of Geology University of DelhiDelhi 110007India

Investigating the immobilization of CO2,previous basalt-water-CO2 interaction studies revealed the formation of carbonates over a short period,but with the extensive formation of secondary silicates(SS).The mechanisms involved in these processes remain unresolved,so the present study was undertaken to understand secondary mineral formation *** and Rietveld refinement data for neo-formed minerals show a drastic decrease in the Ca-O bond length,with the calcite structure degenerating after 80 h(hours).However,SEM images and EDS data revealed that a longer interaction time resulted in the formation of chlorite and smectite,adjacent to basalt grains which prevent basaltwater-CO2 interaction to form carbonates,thus restricting carbonate *** a result of this,the CO2 mineralization rate is initially high(till 80 h),but it later reduces *** is evident that,for such temperature-controlled transformations,low temperature is conducive to minimizing SS surface coating at the time of mineral carbonation.

关键词： basalt-water-CO2 interaction carbon capture and storage CO2 mineralization leachate chemistry normalized mass loss secondary silicates

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Dispersal of the Zhujiang River(pearl River) derived sediment in the Holocene

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Acta Oceanologica Sinica 2014年第8期33卷 1-9页

作者： GE Qian LIU j.p. XUE Zuo CHU Fengyou Key Laboratory of Submarine Geosciences State Oceanic AdministrationSecond Institute of OceanographyState Oceanic Administration Department of Marine Earth and Atmospheric SciencesNorth Carolina State UniversityRaleighNC 27695USA

High-resolution Chirp profiling and coring reveals an elongated （ca. 400 km） Holocene Zhujiang River （pearl River）-derived mud area （maximum thickness 〉 20 m） extending from the Zhujiang River Delta, southwest-ward off the Guangdong coast, to the Leizhou peninsula. Two depo-centers, one proximal and one distal, are identified. On the continental shelf off the west Guangdong province, the mud is deposited in water depth shallower than 50 m; while to the southeast of the Zhujiang River Estuary, the mud area can extend to the -120 m isobath. A combined analysis with the stratigraphic sequences of other muddy deposits in the West-ern pacific marginal seas （mainly Changjiang （Yangtze） and Huanghe （Yellow） Rivers derived） indicates that the initiation of the Zhujiang River muddy deposit can be further divided into two stages： Stage 1 is before the mid-Holocene sea-level highstand （ca. 7.0 cal. ka Bp）, the proximal mud was mostly deposited after 9.0 cal. ka Bp, when the sea-level rose slowly after the Meltwater pulse -1C; Stage 2, after the mid-Holocene sea-level highstand, clinoform developed on the continental shelf off the west Guangdong province, extending ca. 400 km from the Zhujiang River Estuary. The proximal clinoform thins offshore, from ca. 10 m thickness around 5-10 m water depth to less than 1-2 m around 20-30 m water depth. In addition, we also find a de-veloped distal clinoform in the east of the Leizhou peninsula.

关键词： South China Sea Zhujiang River mud clinoform

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Effect of dietary fibre on the gastrointestinal microbiota during critical illness:A scoping review

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World journal of Critical Care Medicine 2025年第1期14卷 49-59页

作者： Angajendra N Ghosh Calum j Walsh Matthew j Maiden Tim p Stinear Adam M Deane Department of Intensive Care The Northern HospitalEpping 3076VictoriaAustralia Department of Microbiology and Immunology The Peter Doherty Institute for Infection and ImmunityMelbourne 3052VictoriaAustralia Department of Intensive Care The Royal Melbourne HospitalThe University of MelbourneParkville 3050VictoriaAustralia Department of Intensive Care Medicine The Royal Melbourne HospitalParkville 3050VictoriaAustralia

The systemic effects of gastrointestinal(GI)microbiota in health and during chronic diseases is increasingly *** strategies to modulate the GI microbiota during chronic diseases have demonstrated *** changes in dietary intake can rapidly change the GI microbiota,the impact of dietary changes during acute critical illness on the microbiota remain *** fibre is metabolised by carbohydrate-active enzymes and,in health,can alter GI *** aim of this scoping review was to describe the effects of dietary fibre supplementation in health and disease states,specifically during critical *** controlled trials and prospective cohort studies that include adults(>18 years age)and reported changes to GI microbiota as one of the study outcomes using non-culture methods,were *** show dietary fibres have an impact on faecal microbiota in health and *** fibre,inulin,has a marked and specific effect on increasing the abundance of faecal *** chain fatty acids produced by Bifidobacteria have been shown to be beneficial in other patient *** few trials have evaluated the effect of dietary fibre on the GI microbiota during critical *** research is necessary to establish optimal fibre type,doses,duration of intervention in critical illness.

关键词： Gastrointestinal microbiota Dietary fibre Health Critical illness Short chain fatty acids

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Contribution to Structural Elucidation: Behaviours of Substructures partially Defined from 2D NMR

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Chinese journal of Chemistry 2003年第10期21卷 1268-1274页

作者： EpOUHE Celine 范波涛袁身刚 pANAYE A. DOUCET j.p. ITODYS Université paris 7 Denis Diderot Shanghai Institute of Organic Chemistry

Structural elucidation (automatic determination of the structure of amolecule from its spectra) is frequently hampered by combinatorial explosion when trying to assemblethe identified substructures. We devised a new method which can avoid this pitfall by a systematicexamination of allowed ^(13)C chemical shifts ranges for all substructures chemically possible andcombined with a progressive pruning thanks to neighbouring relationships appearing from 2D NMR. Thismethod is explained by a detailed example.

关键词： structural elucidation ^(13)C NMR 2D NMR partially defined substructure

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State of the Art on Micromilling of Materials,a Review

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journal of Materials Science & Technology 2012年第8期28卷 673-685页

作者： M.A.Cmara j.C. Campos Rubio A.M. Abro j.p. Davim Department of Mechanical Engineering Universidade Federal de Minas GeraisAv.Ant onio Carlos6627-Pampulha Belo Horizonte MGCEP:31.270-901Brazil Department of Mechanical Engineering University of AveiroCampus Universitrio de Santiago3810-193AveiroPortugal

The trend towards miniaturization has increased dramatically over the last decade, especially within the fields concerned with bioengineering, microelectronics, and aerospace. Micromillin8 is among the principal manu- facturing processes which have allowed the development of components possessing micrometric dimensions, being used to the manufacture of both forming tools and the final product. The aim of this work is to present the principal aspects related to this technology, with emphasis on the work material requirements, tool ma- terials and geometry, cutting forces and temperature, quality of the finished product, process modelling and monitoring and machine tool requirements. It can be noticed that size effect possesses a relevant role with regard to the selection of both work material （grain size） and tooling （edge radius）. Low forces and temper- ature are recorded during micromillin8, however, the specific cutting force may reach high values because of the ploughing effect observed as the uncut chip thickness is reduced. Finally, burr formation is the principal concern with regard to the quality of the finished part.

关键词： Micro-milling Micromachining Size effect Miniaturization

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pedogenically degenerated illite and chlorite lattices aid to palaeoclimatic reconstruction for chronologically constrained(8-130 ka) loess-palaeosols of Dilpur Formation,Kashmir,India

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Geoscience Frontiers 2020年第4期11卷 1353-1367页

作者： Meenakshi j.p.Shrivastava Rakesh Chandra Department of Geology University of DelhiDelhi110007India Department of Earth Sciences University of KashmirJammu and Kashmir190006India

Chronologically well-constrained loess-palaeosols(recorded glacial and inter-glacial climate) revealed pedogenesis induced ionic substitutions,caused end-member compositional deviations in illite and chlorite,linked to widespread climatic changes occurred during Late ***,micro-level climatic resolution is yet to be ***,layer-wise X-ray diffraction analyses of clay separates,followed by Rietveld refinement revealed varied cell parameters and interatomic *** values for detrital and pedogenic illite and chlorite when plotted against stratigraphic succession show notable changes in the crystallographic *** illite lattices associated with inadequately pedogenized palaeosols have been altered into illite/smectite mixed layers,but,the chlorite lattices represent expansion of a-,b-and contraction of c-axes with much greater amount of distortions,suggestive of warm-humid and acidic *** detrital 48,44 and 83,74 bonded illite and chlorite with2 sub-types each,when pedogenized retained 48,44 and 34;and 83 and 74 bonds(in their neo-formed 3 and 2 sub-types),*** Al-O bond shows expansion,but,unchanged Si-O and decreased Si-K and K-O bonds show loss of Al and retention of Si and K ions in the illite *** illite with 32 atoms and 48 bonds represent contraction of K-O,Si-K,Al-O and Si-O bonds caused bond reinforcement;however,loss of Al3+reflects all-out illite *** to Al-O and K-O bond expansion,major K+ and Al3+ ionic loss occurred during the LGM,however,further ionic loss depends upon the magnitude of the loess-palaeosol weathering that they have *** clilate sensitive Fe,Mg and Al ionic losses for Fe-O,Mg-O and Al11-O9 bond length expansions were recognized in the chlorite *** ionic losses are common,but,complete distortion is attributed to Al,Si,Fe and Mg ionic losses,followed by weakening of Al-O,Si-O,Fe-O and Mg-O ***,Si-O4 and Fe1-O4 bonds,and Si and Fe1 st i

关键词： Crystallographic defects Cell parameters Inter-atomic distances Glacial-interglacial periods Rietveld refinement LGM

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Ethanolic extract of puhuang(pollen Typhae) modulates lipopolysaccharide-induced inflammatory response through inducible nitric oxide synthase/cyclooxygenase-2 signaling in RAW 264.7 macrophages

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journal of Traditional Chinese Medicine 2021年第6期41卷 836-844页

作者： CHEN Tzufan CHEN Chuntzu HUANG Yuanli BASKARAN Rathinasamy TSAI jeffrey j.p. HU Rouhmei Department of Biotechnology Asia UniversityTaichung 41354China Taiwan Department of Bioinformatics and Medical Engineering Asia UniversityTaichung 41354China Taiwan

OBjECTIVE:To evaluate the immune modulatory response of puhuang(pollen Typhae),ethanolic extract of dried pollens(Tp-E)and charcoal activated pollens(CTp-E)were used for their phytochemical evaluation and their modulatory response against lipopolysaccharide(LpS)induced inflammatory activity on RAW264.7 macrophage ***:Biochemical assays were carried out to quantify the 1,1-Diphenyl-2-picrylhydrazyl Radical Scavenging Activity,Reducing power,Ferrous ion chelating ability and total polyphenol content and ***-toxic dose of the extract(Tp-E and CTp-E)was chosen based on 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide *** of Tp-E and CTp-E on lipopolysaccharides-induced inducible nitric oxide synthase(iNOS)and cyclooxygenase-2(COX-2)expression was measured by Western blot and quantitative pCR(q RT-pCR).Expression of inflammatory cytokines,such as interleukins(IL-1βand IL-6)and tumor necrosis factorα(TNF-α),was quantified using q ***-activated protein kinase pathway was analyzed using Western ***:phytochemical analysis revealed that both Tp-E and CTp-E have strong antioxidant activities and high flavonoid and phenolic ***-E and CTp-E effectively inhibit the expression of i NOS and COX-2,thereby inhibiting its downstream proinflammatory regulators,the extracellular signal-related kinase-1/2,that decreases the expression of IL-1β,IL-6 and TNF-α.CONCLUSION:phytochemical constituents present in Typha angustifolia Linn could be used for treating inflammation-related diseases.

关键词： Typha angustifolia lipopolysaccharides inflammation NF-kappa B mitogen-activated protein kinases

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REVIEW ON RESEARCH AND DEVELOpMENT OF MAGNESIUM ALLOYS

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Acta Metallurgica Sinica(English Letters) 2008年第5期21卷 313-328页

作者： Z. Yang j.p. Li j.X. Zhang G.W. Lorimer j. Robson Department of Materials Science and Engineering Xilan Jiaotong University Xilan 710049 China Department of Materials Science and Engineering Xi＇an Technological University Xi＇an 710032 China Manchester Materials Science Centre University of Manchester Manchester M 1 7HS UK

The current research and development of magnesium alloys is summarized. Several aspects of magnesium alloys are described： cast Mg alloy, wrought Mg alloy, and novel processing. The subjects are discussed individuall... 详细信息

关键词： Magnesium alloys Novel processing Grain refined

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