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  • 1
    Electronic Resource
    Electronic Resource
    Electrical Conductibility of Copper Clad Steel Wire by Drawing at Room Temperature (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 334-335 (Mar. 2007), p. 321-324 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: By application of clad-bonding technique of pure copper sheet and plain low carbon steelrebar Q195, the cladding wires in different diameter by drawing at room temperature have beenworked. The increasing ratio of the area of grain boundary is in direct proportion to deformationapproximately. The resistivity of the cladding wires go up in direct proportion to deformationbecause the increment of the area of grain boundary results in increment of static disfigurement toelectron dispersion. When deformation is less 9.6, the relative increment of resistivity is less 1.1%,i.e. the wire is provided with good electrical conductivity. And the resistance and resistivity of thewires can be estimeted based on copper ratio of transverse section of the cladding wire and thedeformation by drawing at room temperature
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.334-335.321.pdf
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  • 2
    Electronic Resource
    Electronic Resource
    Microstructure and Mechanical Properties of Copper Clad Aluminium Wire by Drawing at Room Temperature (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 334-335 (Mar. 2007), p. 317-320 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The microstructure and mechanical properties of pure copper clad Aluminum wires indifferent diameters by drawing at room temperature were studied in this paper. The results show thatthe microstructure of the cladding wire by drawing at room temperature is vimineous grain as fibrilshape from prime equiaxed grain. The fibril diameter is in inverse proportion to deformation and thefibril length is in direct proportion to square of deformation approximately. The ultimate tensilestrength of the cladding wire by drawing at room temperature increases in direct proportion to squareroot of deformation, and the elongation decreases and fluctuates. Basis of the ultimate tensilestrength of prime pure copper and aluminum alloy, the ultimate tensile strength of the cladding wiresin different diameters can be doped out by mixed principle of composite material
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.334-335.317.pdf
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  • 3
    Electronic Resource
    Electronic Resource
    Characteristics of Low Temperature Brittle Fracture Surface of High Nitrogen Austenitic Steel (2006)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 324-325 (Nov. 2006), p. 447-450 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Fracture surface and crack propagation in low temperature brittle fracture (LTBF) of an18Cr-18Mn-0.7N high nitrogen austenitic steel (HNAS) were examined by means of scanningelectronic microscopy, and compared with behaviours of LTBF of low carbon steel. Similar to BCClow carbon steel, the HNAS experienced a typical ductile-to-brittle transition (DBT) with decreasingtemperature, and the appearance of the fracture surface transited from fibrous to granular.Dual-surface observation revealed that there were three types of fracture modes in LTBF of theHNAS: annealing twin boundary fracture, intergranular fracture, and transgranular fracture. Theannealing twin boundary fracture facets were parallel to {111} planes, and were fairly flat andsmooth, with a pattern of three sets of parallel straight-lines intersecting at 60[removed info]. There were also bentsteps that originated and terminated at grain boundaries. The transgranular fracture facets were coarseand uneven, with uniformly distributed small pits and partially river pattern on them. Theintergranular fracture facets were smoothly curved ones on which more than three sets of paralleldeformation structure trace lines were observed. Careful observation on crack propagationdemonstrated that during LTBF of the HNAS, microcracks formed firstly at grain boundary andannealing twin boundary, and then these microcracks came together and coalesced to induce crackpropagation through grains, resulting in a fracture appearance with shiny facets distributing in dullfacets
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/52/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.324-325.447.pdf
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  • 4
    Electronic Resource
    Electronic Resource
    Preparation of Ni-P Alloy Composite Tube-Form Carbon Membrane for Gas Separation (2006)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 11-12 (Feb. 2006), p. 457-460 
    Details
    ISSN: 1662-8985
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: A novel tube-form asymmetrical carbon membrane based on phenol-formaldehyde resin(PFR) is proposed in this paper. The membrane is composed of Ni-P alloy on exterior surface ofcarbon support membrane by electroless plating method after adding ferrous powders (〈20&m) asactive particles inside the membrane procurer. The results show that the H2, N2 and CO2 permeationrate through the composite Ni-P carbon membrane decrease and gas separation factors increase withincrease of Fe content, and H2, N2 and CO2 permeation rates reach 0.44, 0.10 and 0.08m3.m-2.s-1.MPa-1, respectively; H2/N2 and H2/CO2 separation factors are 4.2 and 5.5, respectively.The morphology of the membrane is measured by Scanning Electron Microscope (SEM)
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/39/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.11-12.457.pdf
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  • 5
    Electronic Resource
    Electronic Resource
    Research on the Mechanisms of Laser Forming for the Micro-Structural Element (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 575-578 (Apr. 2008), p. 1145-1150 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Laser forming of a micro-structural element involves a complex thermoplastic process.Numerous efforts had been made on the mechanisms of laser forming for macro-size elements, suchas temperature gradient mechanism, buckling mechanism and upsetting mechanism, etc. It is foundthat the three mechanisms cannot depict fully the process of deformation in the macro-size elementforming, let alone meet the needs of the micro-size one. Considering the laser inducing thermalstresses with size factors differing from the conventional analysis, it is essential to reveal themechanisms dominating the forming process to accurately control the bending angle of a tiny plate.By studying the thermal transfer and elastic-plastic deformation of micro-structural element laserforming, the forming mechanism is explained within the micro size. The finite element model forlaser bending is constructed for simulation. The stimulation results are agreement with theexperimental data
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/18/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.575-578.1145.pdf
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  • 6
    Electronic Resource
    Electronic Resource
    FK-506 Inhibits the IL-2-Independent Induction of the Activation Antigen CD 69 (1993)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 685 (1993), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1993.tb35850.x
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  • 7
    Electronic Resource
    Electronic Resource
    A consensus ranking for information system requirements (1996)
    Bradford : Emerald
    Information management & computer security 4 (1996), S. 10-18 
    Details
    ISSN: 0968-5227
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Computer Science
    Notes: In allocating scarce resources to a new information system (IS), a non-trivial task becomes the determination of a best priority ranking of the IS's intangible information requirements. Given a set of individual users' rankings of the information requirements, illustrates, through a real-world case study, a streamlined consensus priority ranking (SCPR) method based on a concept of minimizing the disagreement (distance) between individual rankings. Compared to a traditional weighted ranking method, the SCPR method is easy to understand, systematic and requires no weighting methodology. Thus, the SCPR method can help the system development team make efficient decisions when allocating resources for a new information system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/09685229610114169
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  • 8
    Electronic Resource
    Electronic Resource
    Preparation and Properties of CuInS〈sub〉2〈/sub〉 Thin-Film by Successive Ionic Layer Adsorption and Reaction (SILAR) Method (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 280-283 (Feb. 2007), p. 877-880 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: CuInS2 thin films were deposited on galss substrate by successive ionic layer absorption and reaction (SILAR) method at room temperature. CuCl2, InCl3, and Na2S were used as precursor materials. The thin films were obtained during the dipping of 20-40 cycles and after annealing in the N2 atmosphere at 500°C. The characterization of the film was carried out by X-ray diffraction, scanning electron microscopy, optical absorption spectrum and X-ray photoelectron spectra. Quantification of the XPS peaks shows that the molar ratio of Cu:In:S of the film is close to the stoichiometry of CuInS2. XRD result demonstrated that the formed compound is CuInS2 with chalcopyrites crystal structure. Direct band gap was found to be 1.5eV from optical absorption spectrum
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/49/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.280-283.877.pdf
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  • 9
    Electronic Resource
    Electronic Resource
    High-Efficient Non-Doped Type White Organic Light-Emitting Devices Using an Electron/Exciton Blocker (2005)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 475-479 (Jan. 2005), p. 1799-1804 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Non-doped type white organic electroluminescent (EL) devices have the followingstructure ITO/m-MTDATA (30nm) /NPB (20-dnm) /rubrene (0.1nm) /NPB (dnm) /DPVBi (20nm) /TPBi (20nm) /Alq (10nm) /LiF/Al were fabricated. The EL spectrum of the devices are dependent on the d and when d=3, the CIE coordinates of the device were well within the white region for voltage raging from 3V to 15V. This device has a luminance of 18950cd/m2 at 15V and maximum power efficiency of 5.65cd/A at 6V
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/09/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.475-479.1799.pdf
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  • 10
    Electronic Resource
    Electronic Resource
    Improving the Performance of Organic Light-Emitting Devices by Adding the Starburst Amine as Buffer Layer (2005)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 475-479 (Jan. 2005), p. 1813-1816 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: We have fabricated an organic light-emitting devices with high efficiency and brightness utilizing thick layer of a starburst amine compound 4,4’, 4’’-tris{N,-(3-methylphenyl)-Nphenylamin} triphenylamine (m-MTDATA) as hole injection buffer layer. The brightness and the current efficiency were comparatively improved compared with those of the device without the buffer layer. The device with 10nm m-MTDATA act as buffer layer has max brightness was 18590cd/m2 at 17 V, and the highest luminous efficiency was achieved 4.30cd/A, at 7V, which is nearly three times than that of the device without it
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/09/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.475-479.1813.pdf
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