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m.lecular heterogeneity of gelatin-binding proteins from.hum.n sem.nal plasm.

Asian Journal of Andrology 2010年第3期12卷 363-375,I0010页

作者： m.ja m. Kosanovic m.roslava m. Jankovic Departm.nt for Im.unochem.stry and Glycobiology Institute for the Application of Nuclear Energy-INEP University of Belgrade Banatska 31b Zemun-Belgrade 11080 Serbia

Defining the m.lecular characteristics of sem.nal plasm. proteins is essential for understanding their function in physiological and pathological conditions. Starting from.the predicted im.ortance of hum.n sem.nal plasm. gelatin-binding proteins, com.rising fibronectin （FN） and FN-related m.lecules, for m.le fertility, this study aim. at gaining insight into their im.uno-glycobiochem.cal properties. Hum.n sem.nal plasm. from.subjects with norm.l sem.n param.ters were separated on a gelatin-Sepharose colum. and analyzed by sodium.dodecyl sulfate- polyacrylam.de gel electrophoresis and im.unoblotting using antibodies against distinct FN form.. Heterogeneity of the isolated m.lecular species was exam.ned by protein chip arrays com.ined with surface-enhanced laser desorption/ionization tim. of flight m.ss spectrom.try, on norm.l, m.tal and hydrophobic surfaces. Carbohydrate com.osition was investigated using m.nnose-, fucose- and sialic acid-specific plant lectins and galectin-1. The results obtained indicated a pattern of isolated proteins corresponding to that of known FN fragm.nts, as confirm.d by im.unoreactivity. Am.ng them.heparin-binding ability was preferentially associated with low m.lecular m.ss species. As for posttranslational m.difications, phosphorylation and glycosylation of distinct fragm.nts were revealed. Lectin binding to fragm.nts containing the gelatin-binding dom.in, particularly with Ricinus com.unis agglutinin I, was stronger than to fragm.nts containing the cell-binding site of FN. A low level of sialylation and distinctive concanavalin A- and Lens culinaris agglutinin-reactive species were also observed. Galectin-1 did not interact with the isolated preparation. Resolving the m.lecular heterogeneity of norm.l hum.n sem.nal plasm. FN and gaining initial insight into possible sim.larities/differences with known FN m.lecular species m.y be considered a prerequisite step preceding challenging the clinical usefulness of these m.lecular properties.

关键词： fibronectin gelatin-binding glycosylation heparin-binding hum.n sem.nal plasm.

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Effect of Oxide Inclusions on Electrochem.cal Properties of Alum.nium.Sacrificial Anodes

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Journal of m.terials Science & Technology 2009年第1期25卷 95-101页

作者： m. Em.m. A. Keyvani m. m.hta J. Cam.bell School of m.tallurgy and m.terials University of Tehran Tehran Iran Departm.nt of m.tallurgy and m.terials University of Birmingham B15 2TT UK

Oxide film. are incorporated into m.lts by an entrainm.nt process, and are expected to be present in m.st m.tals, but particularly cast Al alloys. The oxides are necessarily present as folded-over double film. （bifilm.） that are effectively cracks. Their effect on the electrochem.cal behaviour of cast Al-SZn-0.021n sacrificial anodes was studied in 3 wt pct sodium.chloride solution using the NACE efficiency evaluation. Three m.thods were em.loyed to entrain progressive am.unts of oxide in the alloy, including the addition of Al-Zn-ln m.ching chips to the charge, increasing the pouring height, and agitating the m.lt. The introduction of oxide bifilm. in the cast alloy resulted in the deterioration of the electrochem.cal properties of the sacrificial anodes, such as current capacity and anode efficiency, and introduced increasing variability in these properties. The results suggest that corrosion behaviour is strongly related to the presence of bifilm. suspended in the liquid alloy because bifilm. provide crack paths allowing the corrodant to penetrate deeply into the m.tal m.trix, and sim.ltaneously provide localized galvanic cells because of the precipitation of Fe rich interm.tallic com.ounds on their outer surfaces.

关键词： Alum.nium Sacrificial anode Efficiency Entrainm.nt Bifilm

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Diagnostic Study of an Fe-Ni Alloy Plasm. Generated by the Fundam.ntal (1064 nm. and Second (532 nm. Harm.nics of an Nd: YAG Laser

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Plasm. Science and Technology 2013年第5期15卷 397-402页

作者： m.HANIF m.SALIK m. A. BAIG m.S National University of Sciences & Technology (NUST) School of Science Beijing Jiaotong University National Center for Physics Quaid-i-Azam University Campus

We studied the spatial evolution of the Fe-Ni plasm. generated by the fundam.ntal （1064 nm. and second （532 nm. harm.nics of a Q-switched Nd： YAG laser. The experim.ntally observed line profiles of the neutral iron （Fe I） have been used to extract the plasm. tem.erature （T e ） using the Boltzm.nn plot m.thod, whereas the electron num.er density （N e ） has been deter- m.ned from.the Stark broadening. In addition, we studied the spatial behavior of T e and N e with the variation of laser energy for iron plasm. by placing the target m.terial （iron-nickel alloy） in air at atm.spheric pressure for both m.des of the Nd： YAG laser.

关键词： iron plasm. laser ablation electron tem.erature electron num.er density

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Authigenic Gypsum.in Gas-Hydrate Associated Sedim.nts from.the East Coast of India (Bay of Bengal)

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Acta Geologica Sinica(English Edition) 2013年第3期87卷 749-760页

作者： m. KOCHERLA National Institute of Oceanography

Authigenic gypsum.crystals, along with pyrite and carbonate m.neralization, predom.nantly calcites were noticed in distinct intervals in a 32 m.long piston core, collected in the gas hydratebearing sedim.nts in the northern portion of the Krishna-Godavari basin, eastern continental m.rgin of India at a water depth of 1691 m. X-ray diffraction and energy dispersive spectrum.studies confirm.presence of pyrite, gypsum. calcite, and other m.neral aggregates. The occurrence of gypsum.in such deep sea environm.nt is intriguing, because gypsum.is a classical evaporite m.neral and is under saturated with respect to sea water. Sedim.ntological, geochem.cal evidences point to diagenetic form.tion of the gypsum.due to oxidation of sulphide m.nerals （i.e. pyrite）. Euhedral, transparent gypsum.crystals, with pyrite inclusions are cem.nted with authigenic carbonates, possibly indicating that they were form.d authigenically in situ in the gas hydrate-influenced environm.nt due to late burial diagenesis involving sulphate reduction and anaerobic oxidation of m.thane （AOm.. Therefore, the authigenic gypsum. found in sedim.nts of the Krishna-Godavari and m.hanadi offshore regions could be seen as one of the param.ters to im.ly the presence of high m.thane flux possibly from.gas hydrate at depth.

关键词： authigenic gypsum pyrites gas-hydrates Krishna-Godavari and m.hanadi offshore Anaerobic Oxidation of m.thane (AOm. Eastern continental m.rgin of India

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Alkaline leaching of m.tal m.lting industry wastes and separation of zinc and lead in the leach solution

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Journal of Environm.ntal Sciences 2000年第4期12卷 452-457页

作者： Lin, m. Tongji University Science Technology Development Co. Ltd. Tongji University Shanghai 200092 China

In this work, a thorough exam.nations on the extractability of zinc and lead present in the steelm.king dusts using alkaline leaching process and the effectiveness of the zinc and lead separation in the resultant leaching solutions using sulfide precipitation m.thod were m.de. It was found that only about 53% of zinc and over 70% of the lead could be leached out of the dusts, while the other 47% of zinc and 30% of lead were left in the leaching residues. The zinc and lead in the resultant leaching solution can be effectively and selectively separated. When the weight ratio of sodium.sulfide (m.W. = 222-240) to Pb was kept at 1.8, the lead in the solution could be precipitated out quantitatively while all the zinc was rem.ined in the solution. The zinc left in the solution can be further recovered by the addition of extra sodium.sulfide with a weight ratio of sodium.sulfide to the zinc over 2.6. The resultant filtrate can be recycled to the leaching of dust in the next leaching process.

关键词： Alkaline earth m.tals Dust Industrial wastes Lead m.tal m.lting Sodium.com.ounds Zinc

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SNR changes of VLF radio signals detected onboard the DEm.TER satellite and their possible relationship to the Wenchuan earthquake

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Science China Earth Sciences 2009年第6期52卷 754-763页

作者： m. Parrot Laboratory of Physical and Chem.cal Environm.nt National Center for Scientific Research

Here we used the VLF signal data received by the DEm.TER satellite, transm.tted from.various ground VLF transm.tters which are located around China, to study the changes in the signal to noise ratio (SNR) before and after the Wenchuan earthquake, which had a m.gnitude of 8.0. We also found that the SNRs of different frequency signals decreased significantly over the epicenter region before the earthquake, and reverted to their original levels after the earthquake. This phenom.non m.y be related to the earthquake.

关键词： SNR VLF Wenchuan earthquake DEm.TER satellite seism.-ionospheric phenom.non

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m.ltivariate Statistical Analysis of Potassium.Status in Agricultural Soils in Ham.dan,Western Iran

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Pedosphere 2010年第3期20卷 293-303页

作者： m. JALALI Departm.nt of Soil Science College of AgricultureBu-Ali Sina University

m.ltivariate statistical technique was used to determ.ne the potassium.（K＋） status and to assess soil fertility and K leaching potential in som. calcareous soils. Water-soluble K＋（H20-K） and am.onium.acetate-extractable K＋（NHaOAc- K） ranged from.0.019 to 0.590 （m.an value 0.095） and 0.390 to 3.320 （m.an value 0.954） cm.lc kg-1, respectively. The nitric acid-extractable K＋（HNO3-K） varied from.1.03 to 13.63 （m.an value 5.37） cm.lc kg-1. The proportion of H20-K ranged from.0.34% to 14.8% of HNO3-K, and 2.2% to 53.2% of NHaOAc-K. The proportion of NHaOAc-K ranged from.5.8% to 80% of HNO3-K （m.an value 23% of HNOa-K）. The tendency of the soil to lose K＋ by leaching was exam.ned by determ.ning K＋-Ca2＋ exchange isotherm.. The soils m.stly had m.derate to high values of K＋ sorption capacity, ranging from.10% to 58% （m.an value 28%） of added K＋. The Gapon coefficient varied widely from.1.1 to 12.0 （L m.l-1）-1/2. Clay m.nerals were dom.nated by illite, sm.ctites and verm.culite with sm.ll am.unts of kaolinite. Principal com.onent analysis （PCA） showed that the first four com.onents accounted for 27.7%, 21.4%, 13.8%, and 8.9% of total variation, respectively. The non-hierarchical cluster analysis （k-m.ans clustering） grouped 75 sam.ling sites into six clusters, based on the sim.larity of soil quality characteristics. The results suggested that such classes could form.a basis for variable-rate application to m.intain an adequate K＋ status for crop production and to reduce potential K＋ loss from.soil by leaching.

关键词： adsorption Gapon coefficient leaching non-exchangeable potassium principal com.onent analysis

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Electrode m.dels in electrical im.edance tom.graphy

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2005年第12期6卷 1386-1393页

作者： WANG m. Institute of Particle Science and Engineering University of Leeds LS2 9JT UK

This paper presents different views on electrode m.delling, which include electrode electrochem.stry m.dels for m.delling the effects of electrode-electrolyte interface, electric field electrode m.dels for m.delling electrode geom.try, and electrode m.dels for m.delling the effects of electrode com.on m.de voltage and double layer capacitance. Taking the full electrode m.dels into consideration in electrical im.edance tom.graphy (EIT) will greatly help the optim.sed approach to a good solution and further understanding of the m.asurem.nt principle.

关键词： Electrical im.edance tom.graphy (EIT) Electrochem.stry Electrode m.delling

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EQUIVARIANT COHOm.LOGY AND REPRESENTATIONS OF THE SYm.ETRIC GROUP

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Chinese Annals of m.them.tics,Series B 2001年第1期22卷 23-30页

作者： m. ATIYAH Departm.nt of m.them.tics & Statistics University of Edinburgh James Clerk Maxwell Buildings King's Buildings Edinburgh EH9 3JZ UK

In a recent paper the author constructed a continuous m.p from.the configuration space of n distinct ordered points in 3-space to the flag m.nifold of the unitary group U(n), which is com.atible with the action of the sym.etric group. This m.p is also com.atible with appropriate actions of the rotation group SO(3). In this paper the author studies the induced hom.m.rphism.in SO(3)-equivariant cohom.logy and shows that this contains m.ch interesting inform.tion involving representations of the sym.etric group.

关键词： Cohom.logy Sym.etric group Rotation group

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Effect of Al Doping on Structural, Electrical, Optical and Photolum.nescence Properties of Nano-Structural ZnO Thin Film.

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Journal of m.terials Science & Technology 2012年第4期28卷 329-335页

作者： m. m.zibur Rahm.n m.K.R. Khan m. Rafiqul Islam.m.A. Halim.m. Shahjahan m.A. Hakim.Dilip Kum.r Saha Jasim.Uddin Khan Departm.nt of Physics University of Rajshahi Rajshahi 6205 Bangladesh m.terials Science Division Atomic Energy Centre Dhaka Bangladesh Industrial Physical Division BCSIR Dhaka Bangladesh

The nano-structural Al-doped ZnO thin film. of different m.rphologies deposited on glass substrate were successfully fabricated at substrate tem.erature of 350 ℃ by an inexpensive spray pyrolysis m.thod. The structural, electrical, optical and photolum.nescence properties were investigated. X-ray diffraction study revealed the crystalline wurtzite （hexagonal） structure of the film. with nano-grains. Scanning electron m.croscopy （SEm. m.crographs indicated the form.tion of a large variety of nano-structures during film.growth. The spectral absorption of the film. occurred at the absorption edge of -410 nm. In the present study, the optical band gap energy 3.28 eV of ZnO decreased gradually to 3.05 eV for 4 m.l% of AI doping. The deep level activation energy decreased and carrier concentrations increased substantially with increasing doping. Exciting with the energy 3.543 eV （A=350 nm., a narrow and a broad characteristic photolum.nescence peaks that correspond to the near band edge （NBE） and deep level em.ssions （DLE）, respectively em.rged.

关键词： Thin film Nano-structure ZnO Surface m.rphology Photolum.nescence

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