461   Adsorption and decomposition of formaldehyde at room temperature using the adsorbing polymer fibers loaded nano-MnO2 Adsorption and decomposition of formaldehyde at room temperature using the adsorbing polymer fibers loaded nano-MnO2    2012 The acrylonitrile-vinylidene chloride (AN-VDC) copolymer fiber containing actived carbon (AC) loaded nano-MnO2 had been made in the laboratory. The fiber was applied to adsorb and decompose formaldehyde at room temperature. The micro-structure of AC/P(AN-VDC)F-MnO2 was investigated by scanning electron microscope (SEM) and the removal efficiency of formaldehyde of AC/P (AN-VDC)F-MnO2 after treated were analyzed. The experimental result shows that, the MnO2 microparticles scatter uniformally afte... 查看全文

462   STORAGE OF RETORT POUCH BEEFSTEAK AND BEEF STEW PACKED UNDER FOUR HEADSPACE LEVELS STORAGE OF RETORT POUCH BEEFSTEAK AND BEEF STEW PACKED UNDER FOUR HEADSPACE LEVELS Katharina R. L. Schmitt, Francesco Boato, Antje Diestel, Daniel Hechler, Andrei Kruglov, Felix Berge    2007 Changes in specific physico-chemical and sensory attributes as well as acceptability of beefsteak and beef stew Meal-Ready-to-Eat (MRE) components packed under different headspace levels (10, 20, 30 and 40 cm3) and stored at selected temperatures of 4, 27 and 38C (40, 80 and 100F) were evaluated over a six month period. No significant changes in microbial counts, pH, residual oxygen, color, hardness and oxidation occurred in retort-packed beefsteak or beef stew. Unlike beefsteak, beef stew recei... 查看全文

463   High speed, two-wavelength radiation thermometry of single micro particles during CO2 laser heating High speed, two-wavelength radiation thermometry of single micro particles during CO2 laser heating    1994 A high speed, two-wavelength radiation thermometer that is capable of monitoring surface temperatures of 50-150 μm diameter particles in the 600-2000 K range and at heating rates of up to 106 K/s, characteristic of pulverized coal combustion, was designed and constructed. To meet the above characteristics, special attention was paid to detector wavelength range and speed, detection electronics and optical system alignment. The thermometer was calibrated using an in-house constructed, black ca... 查看全文

464   Responsive macroscopic materials from self-assembled cross-linked SiO 2-PNIPAAm core/shell structures Responsive macroscopic materials from self-assembled cross-linked SiO 2-PNIPAAm core/shell structures    2012 A way to obtain macroscopic responsive materials from silicon-oxide polymer core/shell microstructures is presented. The microparticles are composed of a 60 nm SiO2-core with a random copolymer corona of the temperature responsive poly-N-isopropylacrylamide (PNIPAAm) and the UV-cross-linkable 2-(dimethyl maleinimido)-N-ethyl-acrylamide. The particles shrink upon heating and form. a stable gel in both water and tetrahydrofuran (THF) at 3-5 wt% particle content. Cross-linking the aqueous gel resul... 查看全文

465   Analyse von Schichten und Schichtsystemen mit hochenergetischen Ionenstrahlen Analyse von Schichten und Schichtsystemen mit hochenergetischen Ionenstrahlen B. Stritzker    1987 The utility of energetic ion beams for thin film analysis is reviewed briefly. The different methods for analysis are based on the different interactions of the fast ions with atomic nuclei and electrons of the solid state samples to be analysed. These interactions include not only ion scattering, but also emission of x-rays and nuclear reactions. Quantitative chemical analysis with good depth resolution by Rutherford-backscattering analysis (RBS) is demonstrated for the suicide formation at the... 查看全文

466   LYE PEELING of MANDARINS LYE PEELING of MANDARINS    2007 A comparative study of three mandarins of Chios, Satsuma and Clementine varieties was carried out to determine the appropriate conditions for lye peeling of fruit segments. 查看全文

467   An unexpected reaction of 2-(cyclopent-2-enyl)aniline hydrochloride with dimethyldioxirane An unexpected reaction of 2-(cyclopent-2-enyl)aniline hydrochloride with dimethyldioxirane D. I. D'yachenko, A. G. Mustafin, V. V. Shereshovets, N. N. Kabal'nova, V. P. Kazakov, I. B. Abdrakh    1998 An unusual direction of the reaction of 2-(cyclopent-2-enyl)aniline hydrochloride with dimethyldioxirane was found: the formation of two isomeric products,viz., 3- and 6-chloro-2-(cyclopent-2-enyl)anilines, was observed. 查看全文

468   Current Status And Future Plan For RRR Grade Niobium Production In Tokyo Denkai Current Status And Future Plan For RRR Grade Niobium Production In Tokyo Denkai Hiroaki Umezawa    0 Tokyo Denkai is a high‐purity tantalum and niobium supplier in Japan. It started niobium production in 1968. Niobium items, such as sheets, rods, and tubes, are provided as superconducting cavity material for the world’s accelerator projects. Tokyo Denkai has five EB (Electron Beam) Melting Furnaces and in the future, will install two more. One existing EB furnace, which has a melting power of 400 KW, is currently used only for niobium production. Because the furnace is not sufficient to melt a 查看全文

469   Borderline: A concept analysis Borderline: A concept analysis ENOCH H. PAGE    2007 An examination of the literature concerning the borderline revelas that different authors, using different concepts of the borderline state, are describing different patient groups. Related to the background of the generally accepted psychiatric nosological classification, three borderline concepts are clearly discernible: (1) borderline equated with a forme fruste of schizophrenia, (2) borderline equated with a general category of personality disorder (psychopathy) and (3) borderline equated wi... 查看全文

470   Anisotropic magnetoresistance and piezoresistivity in structured Fe 3O4-silver particles in PDMS elastomers at room temperature Anisotropic magnetoresistance and piezoresistivity in structured Fe 3O4-silver particles in PDMS elastomers at room temperature    2012 Magnetorheological elastomers, MREs, based on elastic organic matrices displaying anisotropic magnetoresistance and piezoresistivity at room temperature were prepared and characterized. These materials are dispersions of superparamagnetic magnetite forming cores of aggregated nanoparticles inside silver microparticles that are dispersed in an elastomeric polymer (poly(dimethylsiloxane), PDMS), curing the polymer in the presence of a uniform. magnetic field. In this way, the elastic material beco... 查看全文

471   Fabrication and Characterization of Soluble Multi-Walled Carbon Nanotubes Reinforced P(MMA-co-EMA) Composites Fabrication and Characterization of Soluble Multi-Walled Carbon Nanotubes Reinforced P(MMA-co-EMA) Composites    2004 Summary: Soluble multi-walled carbon nanotubes (s-MWNTs), obtained via amidation reaction of octadecylamine with purified multi-walled carbon nanotubes (p-MWNTs), were solution-mixed with P(MMA-co-EMA) at various loadings. Compared to the p-MWNTs/P(MMA-co-EMA) composites, the s-MWNTs/P(MMA-co-EMA) composites showed great improvement both in Young's modulus and tensile strength. With the addition of 10 wt.-% s-MWNTs, the Young's modulus and tensile strength of s-MWNTs/P(MMA-co-EMA) composite have... 查看全文

472   Mature teratoma of the uterine cervix with lymphoid hyperplasia Mature teratoma of the uterine cervix with lymphoid hyperplasia Carlos Diaz-Cascajo, Maria de la Vega and Agustin Rey-Lopez    2003 A rare case of an extragonadal teratoma, which occurred primarily in the uterus, is described. The tumor developed in the uterine cervix as a conventional cervical polyp, 3 months after an elective abortion in a 27-year-old woman. Microscopically, the solid 2.2 × 1.8 × 1.5 cm mass was a mature teratoma with exuberant lymphoid elements. It consisted of ectodermal, mesodermal and endodermal derivatives. The lymphoid elements may have been a lymphoid hyperplasia... 查看全文

473   Manufacture of a 3-D package using low temperature co-fired Ceramic technology Manufacture of a 3-D package using low temperature co-fired Ceramic technology    2011 This paper presents the feasibility of sculpting 3D microstructures in a single layer of unfired green tape ceramic. To achieve this result, a powder blasting machine was used to pattern the soft layer. This process is based on the abrasive power of micro particles propelled at high speed towards a substrate. To create 3D structures, the angle of incidence of those particles was varied. Using this method, we have realised sloped wall, sharp edges and transverse channels inside the green tape cer... 查看全文

474   Kinetics of Electron Transfer from QA to QB in Photosystem II† Kinetics of Electron Transfer from QA to QB in Photosystem II† Rik de Wijn and Hans J. van Gorkom*    2001 The oxidation kinetics of the reduced photosystem II electron acceptor QA- was investigated by measurement of the chlorophyll fluorescence yield transients on illumination of dark-adapted spinach chloroplasts by a series of saturating flashes. QA- oxidation depends on the occupancy of the “QB binding site”, where this reaction reduces plastoquinone to plastoquinol in two successive photoreactions. The intermediate, one-electron-reduced plastosemiquinone anion QB- remains tightly bound, and its r 查看全文

475   Influence of pressure, temperature and concentration on the mechanisms of particle precipitation in supercritical antisolvent micronization Influence of pressure, temperature and concentration on the mechanisms of particle precipitation in supercritical antisolvent micronization    2011 In this work, supercritical antisolvent micronization (SAS) is used to produce nanoparticles, microparticles and expanded microparticles of a model compound, gadolinium acetate (GdAc), using dimethylsulfoxide (DMSO) as the liquid solvent with the aim of studying the dependence of particles' diameter and morphology on some process parameters like pressure, temperature and concentration of the starting solution. Experiments are performed varying the precipitation pressure between 90 and 200 bar, t... 查看全文

476   Induction of prostate adenocarcinomas in Lobund Wistar rats by testosterone Induction of prostate adenocarcinomas in Lobund Wistar rats by testosterone Carlos Diaz-Cascajo, Maria de la Vega and Agustin Rey-Lopez    2006 Prostate adenocarcinomas were induced in Lobund Wistar rats following subcutaneous implants of silastic chambers containing testosterone propionate. The tumors resembled those that developed spontaneously in the Lobund Wistar rats. Tumors were not induced in ACI rats by the same treatment schedule. 查看全文

477   Surface imaging microscopy, an automated method for visualizing whole embryo samples in three dimensions at high resolution Surface imaging microscopy, an automated method for visualizing whole embryo samples in three dimensions at high resolution R. Diacute;az Calleja, J. L. Goacute;mez Ribelles, M. Monleoacute;n Pradas, A. Ribes Greus and F. Ro    2002 Biosearch Technologies, Inc., 81 Digital Drive, Novato, CA 94949 查看全文

478   Book Review: Chemical Modification of Enzymes: Active Site Studies. Edited by J. Eyzaguirre Book Review: Chemical Modification of Enzymes: Active Site Studies. Edited by J. Eyzaguirre R. Diacute;az Calleja, J. L. Goacute;mez Ribelles, M. Monleoacute;n Pradas, A. Ribes Greus and F. Ro    2003 查看全文

479   Experiments on heat transfer in Fe micrometer and nanometer powders Experiments on heat transfer in Fe micrometer and nanometer powders    2011 This paper investigates characteristics of heat transfer in Fe micrometer and nanometer powder. The understanding for thermal properties of the powder is advantageous to the advancement of the processing technologies such as laser cladding, laser sintering, powder metallurgy and its other applications. Nanosized particles possess characteristic physical and chemical properties different from those of bulk materials due to the confinement of electrons, excitons, and photons into small volumes. Th... 查看全文

480   Adsorption Dynamics of CO on Silica Supported CuOx Clusters: Utilizing Electron Beam Lithography To Study Methanol Synthesis Model Systems Adsorption Dynamics of CO on Silica Supported CuOx Clusters: Utilizing Electron Beam Lithography To Study Methanol Synthesis Model Systems M. Komarneni, J. Shan, A. Chakradhar, E. Kadossov, S. Cabrini, and U. Burghaus*    2012 Electron beam lithography was used to nanofabricate 12 and 63 nm Cu clusters supported on silica (model nanoarray catalysts). The Cu clusters could reversibly be oxidized and reduced at ultrahigh vacuum conditions. The chemical activity of these clusters was probed by Auger and X-ray photoelectron spectroscopy, thermal desorption spectroscopy, and molecular beam scattering. CO was used as the probe molecule. Scanning electron microscopy was used to obtain cluster size distributions. CO adsorptio... 查看全文

481   Book Review: Mechanisms of Inorganic Reactions. By D. Katakis and G. Gordon Book Review: Mechanisms of Inorganic Reactions. By D. Katakis and G. Gordon    2003 查看全文

482   The electrorheological effect of polyaniline nanofiber, nanoparticle and microparticle suspensions The electrorheological effect of polyaniline nanofiber, nanoparticle and microparticle suspensions    2009 Polyaniline (PANI) is an important electrorheological (ER) material. In this paper, PANI with different morphologies, including nanofiber, nanoparticle and microparticle, are prepared on a large scale by a simple and modified oxidative polymerization method in a low-cost citric acid aqueous solution. The effect of particle morphology on the electric, ER, sedimentation, and temperature properties of PANI suspensions is investigated systematically. The results show that the suspensions containing ... 查看全文

483   The reactions of sulfur atoms. 15. Absolute rate parameters for the sulfur(3P2,1,0) + alkyne reactions The reactions of sulfur atoms. 15. Absolute rate parameters for the sulfur(3P2,1,0) + alkyne reactions A. Van Roodselaar, I. Safarik, O. P. Strausz, H. E. Gunning    1978 查看全文

484   Alumina-mullite-zirconia composites Alumina-mullite-zirconia composites H. M. Jang, S. M. Cho;K. T. Kim    1996 A boehmite-silica-zirconia precursor powder with a uniform. spatial distribution of constitutive phases was prepared from the corresponding ternary sol by compressing the electrical double layer (EDL) without altering the magnitude of the surface potential at a pH of 3.5. Both the rheological data and the calculated potential energy of interaction indicated that the mixed ternary sol formed weakly coagulated units in a shallow potential energy well after the compression of EDL at a pH of 3.5. Th... 查看全文

485   Quality and Maturity Indices for Postharvest Handling of Southern peas Quality and Maturity Indices for Postharvest Handling of Southern peas PREM PRAKASH. SRIVASTAV, HRISHIKES. DAS and SITARAM. PRASAD    2006 Purple hull pinkeye southern peas were harvested at three levels of maturity, shelled and stored at three temperatures (1, 5, and 20°C). Samples were evaluated at three storage intervals (1, 4 and 7 days) using 11 different indicators of quality. Alcohol insoluble solids and total solids measurements were most closely related to maturity differences. Derived instrumental color functions (AH and AE), pH, total acidity, and % green peas were the quality indices providing the best separation of... 查看全文

486   Aligned Co-Co2 Si eutectics Aligned Co-Co2 Si eutectics J. D. Livingston    1976 The addition of W, Ta, or Al to Co-rich Co-Si alloys suppresses the formation of Co3Si and produces stable eutectics between the Co2Si and the Co-rich solid-solution phase. The Co-Si-W and Co-Si-Ta alloys solidified as three-phase eutectics. The Co-Si-Al alloy solidified as a two-phase eutectic, but a third phase precipitated on cooling. Interesting morphological changes were produced by epitaxial precipitation of Co2Si from solid solution during cooling. 查看全文

487   Studies in the History of Statistics and Probability Collected Translations Compiled and translated by Oscar Sheynin Studies in the History of Statistics and Probability Collected Translations Compiled and translated by Oscar Sheynin I. M. V. Ptukha    0 查看全文

488   Rheological properties of suspensions of micro-particles of cellulose Rheological properties of suspensions of micro-particles of cellulose    1997 The rheological properties of suspensions of micro-particles of cellulose (MPC) with various sizes are studied using dynamic viscoelastic and steady-shear measurements. It is shown that MPC suspensions have an entropic elasticity, and become a more elastic structure with increasing temperatures. However, this structural change accompanied with temperature is thermoreversible. 查看全文

489   Compiling Natural Semantics Into ML Compiling Natural Semantics Into ML Richard Gayraud, Catherine Dubois, Evry Cedex    0 . This paper presents a compilation scheme from natural semantics specifications to ML. Permutations of premises allow, for a class of specifications, a purely functional execution and can reduce nondeterminism. This method uses some specific features of ML, like exceptions, closures and pattern-matching. 1 Introduction Natural semantics [2, 7] is a formalism used to specify the semantics of programming languages. A specification in natural semantics describes one or several relations betw... 查看全文

490   California Almond Shelf Life: Lipid Deterioration During Storage California Almond Shelf Life: Lipid Deterioration During Storage SHIRLEY G. CABRERA, JI H. JANG, SANG T. KIM, YUN R. LEE, HYEON J. LEE, HUN S. CHUNG and KWANG D. MOO    2012 Abstract:  The effects of storage conditions on the lipid deterioration in California almond nuts and sliced were studied. Natural whole almonds with or without polyethylene (PE) packaging and blanched whole almonds and sliced with PE packaging were stored in 10 different storage conditions which were combinations of different temperatures and relative humidity levels. The peroxide values (PVs), iodine values (IVs), and free fatty acids (FFAs) were monitored during the storage. The PVs in t... 查看全文

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