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  • Trans Tech Publications, Ltd.  (305)
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  • Trans Tech Publications, Ltd.  (305)
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  • 1
    Online Resource
    Online Resource
    The Research of Application of Laser Pointer Control Projection Screen Menu
    Trans Tech Publications, Ltd. ; 2011
    In:  Applied Mechanics and Materials Vol. 145 ( 2011-12), p. 214-218
    Details
    In: Applied Mechanics and Materials, Trans Tech Publications, Ltd., Vol. 145 ( 2011-12), p. 214-218
    Abstract: Existing wireless control laser pointer with the function of paging PPT in projector can control the move of the mouse pointer. The original problem is that the traditional wireless mouse is unhandy with the mouse pointer moving in frames. To address the difficulty, this project through the camera getting images on the projection screen can first determine the edge of the screen, using frame difference algorithm to extract feature points of the laser light, then call the API of windows and finally move the cursor to the appropriate specified place. Four image processing modules are designed in order to accomplish the process. The result turns out that the mouse can move freely according to the laser spot. Experimental results show that light intensity of the external environment does not affect the control. Moreover, under the normal indoor environment, mouse delay and maximum use of the distance meet the practical requirements.
    Type of Medium: Online Resource
    ISSN: 1662-7482
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMM.145
    DOI: 10.4028/www.scientific.net/AMM.145.214
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2011
    detail.hit.zdb_id: 2251882-4
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  • 2
    Online Resource
    Online Resource
    Contents and Characteristics of Phthalic Acid Esters in Municipal Sewage Sludge in Jiangsu Province
    Trans Tech Publications, Ltd. ; 2013
    In:  Advanced Materials Research Vol. 864-867 ( 2013-12), p. 861-865
    Details
    In: Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 864-867 ( 2013-12), p. 861-865
    Abstract: Concentrations of 6 kinds of phthalic acid esters (PAEs) in sewage sludge from 20 typical municipal wastewater treatment plants (WWTPs) in Jiangsu province were determined by gas chromatography-mass spectrometry (GC-MS) . The results shows that the sewage sludge samples contain phthalic acid ester compounds, which total content of phthalic acid esters ( PAEs) range from 15.126 to 71.107 ug/g (dry sludge). The content of diethylhexyl phthalate (DEHP) is the highest, which amounts more than 80% of total phthalic acid esters (PAE); the content of dimethyl phthalate (DMP) is low ,which is less than 1.0 ug/g;Diethyl phthalate (DEP), dibutyl phthalate (DBP) and benzyl butyl phthalate (BBP) are detected in each sludge sample, but which content display greater difference; Dioctyl phthalate (DOP) in most cities is not detected.
    Type of Medium: Online Resource
    ISSN: 1662-8985
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMR.864-867
    DOI: 10.4028/www.scientific.net/AMR.864-867.861
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2013
    detail.hit.zdb_id: 2265002-7
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  • 3
    Online Resource
    Online Resource
    Preparation and Characterization of Mg-Al/Zn-Al Layered Double Hydroxides Intercalated with Calcein
    Trans Tech Publications, Ltd. ; 2016
    In:  Materials Science Forum Vol. 852 ( 2016-4), p. 300-307
    Details
    In: Materials Science Forum, Trans Tech Publications, Ltd., Vol. 852 ( 2016-4), p. 300-307
    Abstract: The intercalation of calcein into Mg/Al-NO 3 -LDHs and Zn/Al-NO 3 -LDHs by co-precipitaiton and ion-exchange method has been investigated. The obtained intercalation compounds were characterized by XRD, FT-IR and TG-DSC techniques. The results show that the original interlayer nitrate ions can be replaced by the organic anions under the controlled conditions. From the XRD data, the guest size and the orientation of anions between the layers were determined and after intercalation the interlayer spaces of the materials are expanded to 1.81 nm. FT-IR and DSC/TG curves reveal the presence of a complex system of supramolecular host-guest interaction and the increase of thermal stability of materials and the photochemical properties of compounds were studied by UV-Vis adsorption spectroscopy. These results indicate that the confinement of the UV absorbents in their anionic form within the restricted space of the interlayer region of LDHs is in favor of guest-host and guest-guest interactions, so that the UV aborption range and ability of the intercalation compounds are changed.
    Type of Medium: Online Resource
    ISSN: 1662-9752
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/MSF.852
    DOI: 10.4028/www.scientific.net/MSF.852.300
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2016
    detail.hit.zdb_id: 2047372-2
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  • 4
    Online Resource
    Online Resource
    Effects of La Doping on Microstructure and Ferroelectric Properties of BLTN Lead-Free Ceramics
    Trans Tech Publications, Ltd. ; 2017
    In:  Materials Science Forum Vol. 898 ( 2017-6), p. 1591-1596
    Details
    In: Materials Science Forum, Trans Tech Publications, Ltd., Vol. 898 ( 2017-6), p. 1591-1596
    Abstract: Lead-free EO ceramics have been received increasing attentions from the view point of green environment in recent years. In this study, lead-free Ba 6-1.5 x La x Ti 2 Nb 8 O 30 (0≤x≤7%) ceramics were synthesized by the conventional solid state reaction sintering method. The effects of lanthanum doping on the microstructure and electrical properties of Ba 6 Ti 2 Nb 8 O 30 (BTN) ceramics were investigated and analyzed. The XRD results revealed that the lanthanum doping changed the BTN lattice parameters slightly. The sample grain size, dielectric constants (1kHz) and the temperature Tm gradually decreased with the increasing of lanthanum doped content. The optimized BLTN ceramic sample with x=4 mol % exhibited a good transparency and excellent electrical properties (Ps=6.41 μC/cm 2 , Pr=0.77 μC/cm 2 , and Ec=3.80 kV/cm).
    Type of Medium: Online Resource
    ISSN: 1662-9752
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/MSF.898
    DOI: 10.4028/www.scientific.net/MSF.898.1591
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2017
    detail.hit.zdb_id: 2047372-2
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  • 5
    Online Resource
    Online Resource
    Polarized Infrared and Raman Spectra on Molecular Orientation of Phthalocyanine Derivatives in Nanolaminated Films
    Trans Tech Publications, Ltd. ; 2012
    In:  Advanced Materials Research Vol. 549 ( 2012-7), p. 634-638
    Details
    In: Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 549 ( 2012-7), p. 634-638
    Abstract: The orientation of the hydrocarbon chains and functionally important chromophore of copper (II) phthalocyanine (CuPc) derivatives are discussed by spectrum assessment methods in ordered thin films. The attention is focused upon the monolayer and multilayer films of CuPc derivatives that are symmetrically and asymmetrically substituted CuPc biosimulation systems. On the basis of infrared (IR) transmission, polarized IR, reflection–absorption (RA) IR spectroscopy and surface enhancement resonance Raman spectra (SERRS) study, following conclusions are given. The hydrocarbon chains of CuPc in the film are in hexagonal or pseudohexagonal subcell packing, and the CH2 asymmetric vibrational vector is oriented with respect to the substrate surface. The macrocycle of CuPc on the Ag substrate is oriented parallel to the surface, and the RA spectroscopy can distinguish the two CH2 stretching modes of benzene cycle. All these studies and results are useful to provide an insight into the nanostructure of the thin films of other kinds of compounds.
    Type of Medium: Online Resource
    ISSN: 1662-8985
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMR.549
    DOI: 10.4028/www.scientific.net/AMR.549.634
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2012
    detail.hit.zdb_id: 2265002-7
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  • 6
    Online Resource
    Online Resource
    Parameters Optimization of Fan-Shaped AZ31 Magnesium Alloy in Extrusion Process
    Trans Tech Publications, Ltd. ; 2013
    In:  Advanced Materials Research Vol. 765-767 ( 2013-9), p. 3200-3203
    Details
    In: Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 765-767 ( 2013-9), p. 3200-3203
    Abstract: It was simulated with rigid viscoplastic finite element theory for fan-shaped profile extrusion process of AZ31 magnesium alloy, and analyzed the distortion mesh of the various stages of the extrusion process and obtained the speed field, stress field and strain field in inner workpiece during the deformation course. Appiying to orthogonal experimental method, we carried out nine simulations with the different extrusion ratio, extrusion temperature and extrusion speed. The above three main factors impacted the organization of the extrusion products, designed into three levels respectively. It was used the mean-square deviation of effective stress at the die orifice during the extrusion forming to determine the best technical parameters. With the best technical parameters and normal technical parameters obtained above, we had a extrusion test and observed the microstructure of extrusion products.
    Type of Medium: Online Resource
    ISSN: 1662-8985
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMR.765-767
    DOI: 10.4028/www.scientific.net/AMR.765-767.3200
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2013
    detail.hit.zdb_id: 2265002-7
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  • 7
    Online Resource
    Online Resource
    Light Scattering Properties for PLZT Transparent Ceramics of Different Zr/Ti Ratios
    Trans Tech Publications, Ltd. ; 2012
    In:  Key Engineering Materials Vol. 512-515 ( 2012-6), p. 1537-1540
    Details
    In: Key Engineering Materials, Trans Tech Publications, Ltd., Vol. 512-515 ( 2012-6), p. 1537-1540
    Abstract: Lead lanthanum zirconate titanate (PLZT) transparent ceramics present an attractive electrically controlled light scattering performance with high transmittance and large contrast ratio. PLZT ceramics of 8 mole% lanthanum with different Zr/Ti ratios (Zr/Ti=68/32, 70/30, 72/28) were prepared by the hot pressing method to figure out the influence of Zr/Ti ratios to the light scattering performance. X-ray diffraction patterns confirm that all the samples are perovskite structure with no secondary impurity phase detected. All the three compositions show double tending slim hysteresis loops which due to antiferroelectric phase coexisted. Besides, within the range of near-infrared to ultraviolet wavelength, all the PLZT samples show high transmittance. While the Zr/Ti ratio increasing from 68/32 to 72/28, the transmittance reduced value R T of the sample decreases gradually (λ: 632.8 nm). PLZT (8/68/32) sample shows a maximum R T , it promises a good application in optical modulators, goggles and so on.
    Type of Medium: Online Resource
    ISSN: 1662-9795
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/KEM.512-515
    DOI: 10.4028/www.scientific.net/KEM.512-515.1537
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2012
    detail.hit.zdb_id: 2073306-9
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  • 8
    Online Resource
    Online Resource
    Effects of Zr/Ti Ratio on the Electric-Induced Light Scattering Performances of PLZT Transparent Ceramics
    Trans Tech Publications, Ltd. ; 2015
    In:  Key Engineering Materials Vol. 655 ( 2015-7), p. 136-140
    Details
    In: Key Engineering Materials, Trans Tech Publications, Ltd., Vol. 655 ( 2015-7), p. 136-140
    Abstract: Lead lanthanum zirconate titanate (PLZT) transparent ceramics have attracted more and more attentions for their unique electric-induced light scattering effects. The PLZT ceramics of 7.45 mole% lanthanum with different Zr/Ti ratios (Zr/Ti=68/32, 69/31, 70/30, 71/29, 72/28) were prepared by the hot-press sintering method. The X-ray diffraction patterns confirm that all the PLZT samples are perovskite structure without detected secondary phases. The SEM images of the fracture surfaces of the samples show that all the PLZT materials tend to fracture transgranularly, and exhibit fully dense and uniform microstructures. All the samples with different Zr/Ti ratios present typical relaxation ferroelectric phase transition characteristics with square shaped hysteresis loops. Noticeably, all the original PLZT samples show an excellent transparency in the wavelength range from visible to near-infrared, and they will become opaque after an appropriate electric field experienced. The opaque sample can also recover to the transparent state when an inverse compatible electric field acts on it. The contrast ratio of the sample increases firstly and then decreases when the Zr/Ti ratio increases from 68/32 to 72/28 (λ=632.8nm). The PLZT (7.45/70/30) material shows a maximum contrast ratio, which makes it promising to apply in optical modulators.
    Type of Medium: Online Resource
    ISSN: 1662-9795
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/KEM.655
    DOI: 10.4028/www.scientific.net/KEM.655.136
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2015
    detail.hit.zdb_id: 2073306-9
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  • 9
    Online Resource
    Online Resource
    Evidence of Normal to Anti Ferroelectric Phase Transition of PLZT Transparent Ceramics of Different Zr/Ti Ratio
    Trans Tech Publications, Ltd. ; 2016
    In:  Key Engineering Materials Vol. 697 ( 2016-7), p. 223-226
    Details
    In: Key Engineering Materials, Trans Tech Publications, Ltd., Vol. 697 ( 2016-7), p. 223-226
    Abstract: The lanthanum-modified lead zirconate titanate transparent ceramics with different Zr/Ti ratio were prepared by the hot pressing sintering method. A single perovskive structure with a dense microsctructure was obtained and the transgranular fracture of PLZT ceramics tended to be more serious As the Zr/Ti ratio increases, the transmittance of PLZT ceramics tended to be higher and the transgranular fracture became more serious. The P-E loops changed froe a square hysteresis loop to a double tending slim hysteresis loop. Besides,the S-E loops changed from a approximate parabolic shape to a butterfly shape. These two loops confirm the transition from normal ferroelectric to anti ferroelectric phase occured with the Zr/Ti ratio increasing.
    Type of Medium: Online Resource
    ISSN: 1662-9795
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/KEM.697
    DOI: 10.4028/www.scientific.net/KEM.697.223
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2016
    detail.hit.zdb_id: 2073306-9
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  • 10
    Online Resource
    Online Resource
    Research on Cultivation of Pre-School Reading Ability under the Information Technology Circumstances
    Trans Tech Publications, Ltd. ; 2014
    In:  Advanced Materials Research Vol. 926-930 ( 2014-5), p. 4697-4700
    Details
    In: Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 926-930 ( 2014-5), p. 4697-4700
    Abstract: This paper demonstrated the importance of fostering young children’s pre-school reading ability and proposed some ways of training that kind of capacity. It also figured out some matters needing attention.
    Type of Medium: Online Resource
    ISSN: 1662-8985
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMR.926-930
    DOI: 10.4028/www.scientific.net/AMR.926-930.4697
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2014
    detail.hit.zdb_id: 2265002-7
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