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  • World Scientific Pub Co Pte Ltd  (8)
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  • World Scientific Pub Co Pte Ltd  (8)
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  • 1
    Online Resource
    Online Resource
    MICROSTRUCTURAL CHARACTERIZATION OF SPIN-VALVE MULTILAYERS BY X-RAY ANOMALOUS DIFFRACTION TECHNIQUE
    World Scientific Pub Co Pte Ltd ; 2001
    In:  Modern Physics Letters B Vol. 15, No. 09n10 ( 2001-04-30), p. 291-297
    Details
    In: Modern Physics Letters B, World Scientific Pub Co Pte Ltd, Vol. 15, No. 09n10 ( 2001-04-30), p. 291-297
    Abstract: It is impossible to directly analyze the microstructure of spin-valve multilayers based on Ni, Fe, Cu and Mn by a conventional X-ray diffraction technique because the lattice parameter and atomic scattering factors of them are very close. To solve this problem, we use an X-ray anomalous diffraction technique to characterize the microstructures of the [ Ni 80 Fe 20 / Fe 50 Mn 50 ] 15 and [ Ni 80 Fe 20 / Cu ] 15 superlattice systems. The results show that more diffraction peaks and higher intensity in the reflectivity profile are observed when the incident energy is close to the absorption edge of the lighter element (Mn) in [ Ni 80 Fe 20 / Fe 50 Mn 50 ] 15 multilayer systems and to the absorption edge of the heavier element (Cu) in the [ Ni 80 Fe 20 / Cu ] 15 multilayer systems. The interface and periodic structure of [ Ni 80 Fe 20 / Fe 50 Mn 50 ] 15 are more perfect than that of the [ Ni 80 Fe 20 / Cu ] 15 superlattices. The above results are discussed in this paper.
    Type of Medium: Online Resource
    ISSN: 0217-9849 , 1793-6640
    URL: Article
    DOI: 10.1142/S0217984901001732
    RVK:
    UA 5534.B
    Language: English
    Publisher: World Scientific Pub Co Pte Ltd
    Publication Date: 2001
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  • 2
    Online Resource
    Online Resource
    SYNTHESIS AND CHARACTERIZATION OF TERNARY AL-C-N COMPOUND
    World Scientific Pub Co Pte Ltd ; 2002
    In:  International Journal of Modern Physics B Vol. 16, No. 06n07 ( 2002-03-20), p. 1132-1137
    Details
    In: International Journal of Modern Physics B, World Scientific Pub Co Pte Ltd, Vol. 16, No. 06n07 ( 2002-03-20), p. 1132-1137
    Abstract: An attempt for modification of carbon nitride material by introduction of Al to form a ternary Al-C-N compound in a thin film deposited using inductively coupled plasma (ICP) assisted DC magnetron sputtering is reported. Optical emission spectroscopy (OES) is used for in-situ observation and identification of reactive species. The films were characterized using x-ray photoelectron spectroscopy (XPS) and x-ray diffraction spectroscopy (XRD). The results indicate that C-N bond is formed in the plasma. The XPS narrow scam spectra confirm the existence of C-Al, sp 2 C-N and sp 3 C-N bonds. Elemental proportion of carbon increases with the CH 4 /N 2 flow rate ratio, and has a tendency to saturate. The film is dominated by c-AlN (111), mixed with Al 4 C 3 and AlCN ternary compound.
    Type of Medium: Online Resource
    ISSN: 0217-9792 , 1793-6578
    URL: Article
    DOI: 10.1142/S0217979202010993
    RVK:
    UA 4381.B
    Language: English
    Publisher: World Scientific Pub Co Pte Ltd
    Publication Date: 2002
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  • 3
    Online Resource
    Online Resource
    EFFECT OF SURFACE PROPERTIES ON THE WETTABILITY OF IRON CONTAINING AMORPHOUS CARBON FILMS
    World Scientific Pub Co Pte Ltd ; 2002
    In:  International Journal of Modern Physics B Vol. 16, No. 06n07 ( 2002-03-20), p. 1031-1037
    Details
    In: International Journal of Modern Physics B, World Scientific Pub Co Pte Ltd, Vol. 16, No. 06n07 ( 2002-03-20), p. 1031-1037
    Abstract: Ta-C and iron containing amorphous carbon (a-C:Fe) films were deposited by filtered cathodic vacuum arc technique. The influences of Fe contents on the wettability of the films were investigated in terms of surface energy. The surface energy of a-C:Fe films was determined by the contact angle measurement. Atomic force microscopy (AFM), Raman spectroscopy and X-ray induced photoelectron spectroscopy (XPS) were employed to analyze the origin of the variation of surface energy with various Fe content. It is found that the contact angle for water increases significantly after incorporating Fe into the films and the films become hydrophobic. The roughness of these films has a little effect on the contact angle. The surface energy is reduced after incorporating Fe into the a-C film which is due to the reduction of both dispersive and polar component. The reduction in dispersive component is ascribed to the decrease of atomic density of the a-C:Fe films due to the increase in sp 2 bonded carbon. The absorption of oxygen on the surface play an important role in the reduction of polar component for the a-C:Fe films. It is proposed that such network as (C a -O-Fe)-O-(Fe-O-C a ) may be formed and responsible for the reduction of polar component.
    Type of Medium: Online Resource
    ISSN: 0217-9792 , 1793-6578
    URL: Article
    DOI: 10.1142/S0217979202010816
    RVK:
    UA 4381.B
    Language: English
    Publisher: World Scientific Pub Co Pte Ltd
    Publication Date: 2002
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  • 4
    Online Resource
    Online Resource
    Coupled Analysis of Structural–Acoustic Problems Using the Cell-Based Smoothed Three-Node Mindlin Plate Element
    World Scientific Pub Co Pte Ltd ; 2016
    In:  International Journal of Computational Methods Vol. 13, No. 02 ( 2016-03), p. 1640007-
    Details
    In: International Journal of Computational Methods, World Scientific Pub Co Pte Ltd, Vol. 13, No. 02 ( 2016-03), p. 1640007-
    Abstract: The cell-based smoothed finite element method (CS-FEM) using the original three-node Mindlin plate element (MIN3) has recently established competitive advantages for analysis of solid mechanics problems. The three-node configuration of the MIN3 is achieved from the initial, complete quadratic deflection via ‘continuous’ shear edge constraints. In this paper, the proposed CS-FEM-MIN3 is firstly combined with the face-based smoothed finite element method (FS-FEM) to extend the range of application to analyze acoustic fluid–structure interaction problems. As both the CS-FEM and FS-FEM are based on the linear equations, the coupled method is only effective for linear problems. The cell-based smoothed operations are implemented over the two-dimensional (2D) structure domain discretized by triangular elements, while the face-based operations are implemented over the three-dimensional (3D) fluid domain discretized by tetrahedral elements. The gradient smoothing technique can properly soften the stiffness which is overly stiff in the standard FEM model. As a result, the solution accuracy of the coupled system can be significantly improved. Several superior properties of the coupled CS-FEM-MIN3/FS-FEM model are illustrated through a number of numerical examples.
    Type of Medium: Online Resource
    ISSN: 0219-8762 , 1793-6969
    URL: Article
    DOI: 10.1142/S0219876216400077
    Language: English
    Publisher: World Scientific Pub Co Pte Ltd
    Publication Date: 2016
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  • 5
    Online Resource
    Online Resource
    STRUCTURAL AND OPTICAL PROPERTIES OF ZnO SYNTHESIZED BY TEMPERATURE GRADIENT THERMAL OXIDATION
    World Scientific Pub Co Pte Ltd ; 2010
    In:  Surface Review and Letters Vol. 17, No. 05n06 ( 2010-10), p. 497-503
    Details
    In: Surface Review and Letters, World Scientific Pub Co Pte Ltd, Vol. 17, No. 05n06 ( 2010-10), p. 497-503
    Abstract: In this work, a series of polycrystalline ZnO samples have been synthesized from Zn thin films deposited on Si (100) substrates by using thermal oxidation technique. The ZnO thin film samples grown by this technique were then characterized by a variety of structural and optical characterization tools. The results revealed that the use of novel annealing process i.e. the application of temperature gradient in the thermal treatment could enhance the structural and optical quality of the ZnO thin films significantly as compared to the normal annealing process, i.e. a fixed temperature under different durations. Apart from the improvement of structural and optical properties of ZnO thin films, another striking feature of this novel annealing process was the promotion of the growth of ZnO nanostructures.
    Type of Medium: Online Resource
    ISSN: 0218-625X , 1793-6667
    URL: Article
    DOI: 10.1142/S0218625X1001434X
    Language: English
    Publisher: World Scientific Pub Co Pte Ltd
    Publication Date: 2010
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  • 6
    Online Resource
    Online Resource
    Similar alignment based on total-Routhian-surface approach in an α-decay chain from 216Po to 272Cn
    World Scientific Pub Co Pte Ltd ; 2018
    In:  International Journal of Modern Physics E Vol. 27, No. 06 ( 2018-06), p. 1850050-
    Details
    In: International Journal of Modern Physics E, World Scientific Pub Co Pte Ltd, Vol. 27, No. 06 ( 2018-06), p. 1850050-
    Abstract: A systematic investigation of collective properties in the nuclei of an [Formula: see text]-decay chain from [Formula: see text] Po to [Formula: see text]Cn has been performed in the total-Routhian-surface calculations. The empirical indicator [Formula: see text] -factor, energy ratio [Formula: see text], and the energies of the first excited state [Formula: see text] exhibit a hint about nuclear deformation or shape transition in these nuclei. The calculated results of ground state equilibrium deformations are compared with the previous study and available experimental data, showing a general agreement. In addition, the upbending behaviors in moments of inertia have been reproduced by the present work. It is found that the similar alignment of a neutron [Formula: see text] pair is mainly responsible for the upbending in the heavier nuclei. The gentle increasing angular momentums reveal the delayed alignment to certain high spins. Furthermore, taking the near proton drip-line nucleus [Formula: see text] Cn as an example, we briefly discussed the influence of the modification of Woods–Saxon potential parameters (e.g., the strength of the spin-orbit potential [Formula: see text] and the nuclear surface diffuseness [Formula: see text] ) on the moment of inertia. This may imply the role of the slight parameter modifications is negligible due to almost unchanged deformation and pairing interactions at ground state.
    Type of Medium: Online Resource
    ISSN: 0218-3013 , 1793-6608
    URL: Article
    DOI: 10.1142/S0218301318500507
    Language: English
    Publisher: World Scientific Pub Co Pte Ltd
    Publication Date: 2018
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  • 7
    Online Resource
    Online Resource
    Ultra-relativistic Au + Au and d + Au collisions: Experimental studies by PHOBOS
    World Scientific Pub Co Pte Ltd ; 2005
    In:  International Journal of Modern Physics A Vol. 20, No. 19 ( 2005-07-30), p. 4405-4411
    Details
    In: International Journal of Modern Physics A, World Scientific Pub Co Pte Ltd, Vol. 20, No. 19 ( 2005-07-30), p. 4405-4411
    Abstract: In this talk I will review PHOBOS data on charged particle multiplicities, obtained in Au + Au and d + Au collisions at RHIC. The general features of the Au + Au pseudorapidity distributions results will be discussed and compared to those of [Formula: see text] collisions. The total charged particle multiplicity, scaled by the number of participant pairs, is observed to be about 40% higher in Au + Au collisions than in [Formula: see text] and d + Au systems, but, surprisingly at the same level of e + e - collisions. Limiting fragmentation scaling is seen to be obeyed in Au + Au collisions.
    Type of Medium: Online Resource
    ISSN: 0217-751X , 1793-656X
    URL: Article
    DOI: 10.1142/S0217751X05027990
    RVK:
    UA 4381
    Language: English
    Publisher: World Scientific Pub Co Pte Ltd
    Publication Date: 2005
    SSG: 16,12
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  • 8
    Online Resource
    Online Resource
    STRUCTURE AND PROPERTIES OF CONCENTRATED FIBER SUSPENSIONS IN A SHEAR FLOW
    World Scientific Pub Co Pte Ltd ; 2008
    In:  Modern Physics Letters B Vol. 22, No. 09 ( 2008-04-10), p. 643-659
    Details
    In: Modern Physics Letters B, World Scientific Pub Co Pte Ltd, Vol. 22, No. 09 ( 2008-04-10), p. 643-659
    Abstract: The concentrated fiber suspensions in a simple shear flow are simulated numerically by taking into account the hydrodynamic interactions and fiber–fiber mechanical contacts. The orientation probability distribution of fibers, the specific viscosity and the first normal stress difference are obtained. The comparison of the specific viscosity to experimental data is made and the agreement is good. The results show that initially randomly-oriented fibers are re-oriented in the flow direction. The hydrodynamic interactions and fiber–fiber mechanical contacts result in an increase in the spread of the orientation distribution and asymmetric orientation distribution about the flow direction. Fiber's alignment with the flow direction becomes more obvious with an increasing shear rate. In a concentrated fiber suspension, the force induced by the fiber–fiber mechanical contact plays a more important role than that induced by hydrodynamic interactions. The specific viscosity of fiber suspension grows with concentration for various aspect ratios. For a fixed concentration, the larger the aspect ratio is, the higher the specific viscosity is. The specific viscosity calculated by taking into account both hydrodynamic interactions and fiber–fiber mechanical contacts is larger than that only taking into account the fiber–fiber mechanical contacts. The effect of aspect ratio on the first normal stress difference is more obvious at high concentration. Taking into account the hydrodynamic interactions or not will make a big difference in the first normal stress difference.
    Type of Medium: Online Resource
    ISSN: 0217-9849 , 1793-6640
    URL: Article
    DOI: 10.1142/S0217984908015152
    RVK:
    UA 5534.B
    Language: English
    Publisher: World Scientific Pub Co Pte Ltd
    Publication Date: 2008
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