Preface     

Damien Woods  Turlough Neary  Anthony K. Seda 《Theoretical computer science》2011,412(1-2):1

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Biaxial stress–strain behavior of chemical and physical gels of poly(vinyl alcohol)     

Bohumil Meissner  Libor Matjka 《Polymer》2008,49(10):2560-2567

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Seda Nemli  Hilal Betul Kaya  Bahattin Tanyolac 《Journal of the science of food and agriculture》2014,94(8):1672-1680

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Ümit Ay  & Seda Karayünlü 《International Journal of Food Science & Technology》2008,43(2):326-329

A simple method was developed for the determination of cadmium (Cd) and lead (Pb) in milk serum prepared by spontaneous souring, using graphite furnace atomic absorption spectrophotometry. Samples of raw milk were collected from the bulk holding tanks of thirty-six dairy farms in twelve localities in Izmit. The samples were kept at room temperature (25 °C) for 48 h in order to allow the pH to decrease below 4.6, and the casein and fat to precipitate. Milk serum was filtered and directly injected into a graphite tube. The standard addition method was employed, and 0.1% phosphoric acid was used as the matrix modifier. The mean recoveries from three added concentrations were 91.4% for Cd and 95.8% for Pb. Cadmium and Pb concentrations found in the reference standard milk powder using this method were close to the certified values. The mean Cd contents obtained from thirty-six samples were 0.257 μg L⁻¹, ranging from 0.180 to 0.398 μg L⁻¹. The mean Pb contents found were 6.83 μg L⁻¹, ranging from 5.32 to 9.94 μg L⁻¹.  相似文献   

    

Peter McKinney  Steve Knight  Jay Gattuso  David Pearson  Libor Coufal  David Anderson 《New Review of Information Networking》2013,18(2):96-123

In this article we introduce the work of the National and State Libraries Australasia Digital Preservation Technical Registry project.

Any technical registry model must allow digital preservation analysts to understand the technical form of the content they are tasked with preserving, understand the capabilities they have in relation to that content, and reflect on the community position in relation to those capabilities. We believe the solution outlined here is well placed to deliver the information required to answer these questions, and in a manner that makes it easy to understand, reference and augment.

The primary focus of this article is to describe the format model, which is the most radical part of the Digital Preservation Technical Registry. The flexibility the model provides delivers on all of the requirements outlined by the NSLA partners and project team members; this includes the ability to reference many layers constituting a format, including relationships between specifications and implementations of real-world formats. We seek input from members of the community on the model and suggestions for use cases and requirements that we have not envisaged.  相似文献   

Indene epoxidation over titanium modified MCM-41 mesoporous materials     

Martina Stekrova  Petra Zizkova  Eliska Vyskocilova  Jiri Kolena  Libor Cerveny 《Journal of Porous Materials》2015,22(1):73-81

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Nermin Seda Kehr  Bahar Ergün  Henning Lülf  Luisa De Cola 《Advanced materials (Deerfield Beach, Fla.)》2014,26(20):3248-3252

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Alba Díaz‐Rodríguez  Ivn Lavandera  Seda Kanbak‐Aksu  Roger A. Sheldon  Vicente Gotor  Vicente Gotor‐Fernndez 《Advanced Synthesis u0026amp; Catalysis》2012,354(18):3405-3408

An efficient catalytic system to oxidize quantitatively aliphatic diols using Trametes versicolor laccase and TEMPO has been developed in aqueous medium. Oxidations have occurred in a non‐stereoselective fashion but with complete regio‐ and/or monoselectivity, obtaining lactones with excellent purity after simple extraction. This catalytic system has been demonstrated to be scalable, compatible with the presence of a variety of functionalities, and also allowed the successful enzyme recycling using a laccase‐cross‐linked enzyme aggregates (CLEA) preparation.  相似文献   

    

Aydin Ozcan  Seda Keskin 《Journal of chemical technology and biotechnology (Oxford, Oxfordshire : 1986)》2015,90(9):1707-1718

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Seda Aktas  Halil Gevgilili  Ilknur Kucuk  Aydin Sunol  Dilhan M. Kalyon 《Polymer Engineering and Science》2014,54(9):2064-2074

Foams of an engineering plastic, poly(ether imide), were extruded using a single screw extruder employing pressurized CO₂ as the blowing agent. The porosity, pore size distributions, and the density of the foams were especially affected by the pressure drop, the pressure loss rate, and temperature at the die. Significant increases in porosity and pore size and corresponding decreases in density were observed when the pressure imposed on CO₂ became greater than the critical pressure values of CO₂ (i.e., the temperature was always greater than the critical temperature of the CO₂ in the extruder and the die). The viscoelastic material functions of the extruded foams depended especially on the density of the foam, with the elastic modulus increasing with density. The incorporation of nanosilica particles in the 0.08–0.6% by weight range increased only the density of the foam and did not provide any benefits in controlling of the nucleation rate and the pore size distribution, presumably due to their poor dispersibility and agglomerated state in the single screw extruder. POLYM. ENG. SCI., 54:2064–2074, 2014. © 2013 Society of Plastics Engineers  相似文献