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  • 1
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    Experimental Study On Magnetic Shielding Performance Of Al / PET / Rayon Needle Punched Web Under The Exposure To Mobile Phone Field (2018)
    Institute of Physics (IOP)
    Details
    Publication Date: 2018-11-08
    Description: To obtain the intuitive data of magic field changes with nonwoven metal shielding material, the Al / PET / Rayon needle punched webs was processed with varied parameters, which were position of Al film, mass proportion of Al, needle punched density, and needle punched depth. Magnetic flux density values of Al / PET / Rayon needle punched webs were measured to calculate their magnetic flux density attenuation (MFDA) values under the exposure to mobile phone field. It was found that position of Al film, Al proportion, and needle punched density have a great effect on magnetic flux density attenuation. When Al proportion in needle punched web increases from 10% to 18%, MFDA values increase accordingly, and tend to converge around Al mass ratio 18%. Besides, the promotion range of MFDA values is particularly obvious in the case of needle punched density 50 g m −2 . When needle punched density increases from 50 g m −2 to 150 g m −2 , MFDA values decrease o...
    Print ISSN: 1757-8981
    Electronic ISSN: 1757-899X
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Institute of Physics (IOP)
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  • 2
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    Objected-oriented remote sensing image classification method based on geographic ontology model (2016)
    Institute of Physics (IOP)
    Details
    Publication Date: 2016-11-22
    Description: Nowadays, with the development of high resolution remote sensing image and the wide application of laser point cloud data, proceeding objected-oriented remote sensing classification based on the characteristic knowledge of multi-source spatial data has been an important trend on the field of remote sensing image classification, which gradually replaced the traditional method through improving algorithm to optimize image classification results. For this purpose, the paper puts forward a remote sensing image classification method that uses the he characteristic knowledge of multi-source spatial data to build the geographic ontology semantic network model, and carries out the objected-oriented classification experiment to implement urban features classification, the experiment uses protégé software which is developed by Stanford University in the United States, and intelligent image analysis software—eCognition software as the experiment platform, uses hyperspectral image and Lidar...
    Print ISSN: 1755-1307
    Electronic ISSN: 1755-1315
    Topics: Geography , Geosciences , Physics
    Published by Institute of Physics (IOP)
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  • 3
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    Impacts of sectoral emissions in China and the implications: air quality, public health, crop production, and economic costs (2018)
    Institute of Physics (IOP)
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    Publication Date: 2018-07-28
    Description: China has experienced considerable economic losses from a severe deterioration in air quality. To solve this, a comprehensive understanding of the impacts and sources of air pollution is necessary. This study aimed to quantify the environmental and human health impacts of PM 2.5 and O 3 pollution from the six major emission-producing sectors in China. We utilized a chemical transport model to simulate the air quality impacts engendered by sectoral emissions. The consequent impacts on public health and crop production, as well as the corresponding collateral economic costs, were quantified by concentration-response functions. The results show that the sectoral emissions in 2010 caused approximately 1 143 000 (95% confidence interval (CI): 168 000–1 796 000) premature mortalities and a 20 035 (95% CI: 6776–32 166) Gg crop production loss. Of the six sectors, the industrial sector was the largest contributor of air pollution, accounting for 36% of the total impa...
    Print ISSN: 1748-9318
    Electronic ISSN: 1748-9326
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering
    Published by Institute of Physics (IOP)
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  • 4
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    Quantum chemical calculation of imidization mechanism of polyamic acid (2018)
    Institute of Physics (IOP)
    Details
    Publication Date: 2018-02-03
    Description: In this paper, the imidization mechanism of polyamic acid to prepare polyimide has been studied by the density functional theory (DFT) method. Our results have shown that the imidization would proceed via two different reaction paths. The activation barrier via hydrogen transfer to closer carboxylate oxygen in the COOH is 220.35 kJ/mol while the activation barrier via hydrogen transfer to hydroxyl oxygen in the COOH is 220.70 kJ/mol. Both reaction paths would run in the actual thermal imidization process with closer high activation barriers. The high energy barrier interpreted the fact that additional energy or catalyst is usually needed during imidization. Moreover, the intrinsic imidization mechanism indicated is critical to further improve the imidization process.
    Print ISSN: 1757-8981
    Electronic ISSN: 1757-899X
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Institute of Physics (IOP)
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  • 5
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    Mechanical properties of gutta-percha sulfide modified asphalt (2017)
    Institute of Physics (IOP)
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    Publication Date: 2017-01-24
    Description: Gutta-percha is the isomer of caoutchouc and can be used to enhance the performance of asphalt. In this paper, the produce proceedings of gutta-percha sulfide and gutta-percha sulfide modified asphalt are introduced. The performance indices of gutta-percha sulfide modified asphalt samples with different proportions are examined based on laboratory tests and the optimum ratio of gutta-percha and sulfur is decided.The micromechanism, temperature sensitivity, high and low temperature properties and viscoelasticity of the polymer modified asphalt are analyzed to discuss the modified mechanism and to decide the optimal polymer content. Low temperature bending tests are carried out to verify the low temperature performance of gutta-percha sulfide modified asphalt mixture. Research results showed that gutta-percha sulfide modified asphalt has good low temperature performance and a promising application prospect in the cold regions.
    Print ISSN: 1757-8981
    Electronic ISSN: 1757-899X
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 6
    Electronic Resource
    Electronic Resource
    Induction of apoptosis in proliferating lymphocytes by tricyclic antidepressants (1998)
    Springer
    Apoptosis 3 (1998), S. 255-260 
    Details
    ISSN: 1573-675X
    Keywords: Antidepressants ; apoptosis ; induction ; lymphoblasts ; lymphocytes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract We have previously found that tricyclic antidepressants (TCAs) induce apoptosis in quiescent human lymphocytes. The aim of the present study was to evaluate if TCAs induce apoptosis in proliferating human lymphocytes and in established blastoid lymphocytes also. The development of conA-induced lymphoblast populations was followed by measuring the CD25 membrane expression. Three TCA compounds were run with the following concentrations: imipramine (10, 20, 30, 40, 60μ M), clomipramine (1, 10, 20, 30, 40μ M) and citalopram (40, 60, 80, 100, 180μ M). They all induced a dose-dependent apoptosis both in continuously transformed, as well as in established lymphoblasts. Preincubation of the TCA up to 48 h did not significantly increase induction of apoptosis. The three drugs tested were found to be potent inducers of apoptosis in proliferating lymphocytes. Furthermore, we found that the apoptotic populations in proliferating and in established blastoid lymphocytes were of f airly the same magnitude than in the corresponding population in TCA-incubated resting lymphocytes. In conclusion, we demonstrate that TCAs induce apoptosis in proliferating lymphocytes, as they do in quiescent lymphocytes. Furthermore, the exent of apoptosis was even more pronounced in TCA-incubated lymphoblasts compared to TCA-treated resting lymphocytes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1009609224936
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  • 7
    Electronic Resource
    Electronic Resource
    Cu-like Pd and Ag inner-shell photoionization phenomena (1996)
    Springer
    Applied physics 62 (1996), S. 619-622 
    Details
    ISSN: 1432-0649
    Keywords: 52.50.Jm ; 52.25.Nr
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We have obtained results for converting focused laser radiation to X-ray line emissions in laser-heated NaF and Cu plasmas. These plasmas were used as the pump source for studying the phenomena of inner-shell photoionization of Zn-like ionic states. Soft X-ray emissions from transitions of 3d 94s 2 → 3d 104p in Cu-like Pd and Ag ions were observed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01081701
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  • 8
    Electronic Resource
    Electronic Resource
    Coupling of element free Galerkin and hybrid boundary element methods using modified variational formulation (2000)
    Springer
    Computational mechanics 26 (2000), S. 166-173 
    Details
    ISSN: 1432-0924
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract  A novel method is proposed by coupling the element free Galerkin (EFG) and the hybrid boundary element (HBE) methods to achieve solution efficiency and accuracy for stress analysis in solids. A modified variational formulation is derived for the present coupled EFG/HBE method so that the continuity and compatibility can be preserved on the interface between the domains of EFG and HBE. The coupled EFG/HBE method has been coded in FORTRAN. The validity and efficiency of the proposed method are demonstrated through a number of example problems. It is found that the present method can take advantages of both EFG and HBE methods. The present method is very easy to implement, and very flexible for obtaining displacements and stresses of desired accuracy in solids, as the efforts for meshing the problem domain have been significantly reduced due to the use of boundary element method (BEM).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004660000164
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  • 9
    Electronic Resource
    Electronic Resource
    Meshless local Petrov–Galerkin (MLPG) method in combination with finite element and boundary element approaches (2000)
    Springer
    Computational mechanics 26 (2000), S. 536-546 
    Details
    ISSN: 1432-0924
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The meshless local Petrov–Galerkin (MLPG) method is an effective truly meshless method for solving partial differential equations using moving least squares (MLS) interpolants. It is, however, computationally expensive for some problems. A coupled MLPG/finite element (FE) method and a coupled MLPG/boundary element (BE) method are proposed in this paper to improve the solution efficiency. A procedure is developed for the coupled MLPG/FE method and the coupled MLPG/BE method so that the continuity and compatibility are preserved on the interface of the two domains where the MLPG and FE or BE methods are applied. The validity and efficiency of the MLPG/FE and MLPG/BE methods are demonstrated through a number of examples.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004660000203
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  • 10
    Electronic Resource
    Electronic Resource
    Lily cofactor-independent phosphoglycerate mutase: purification, partial sequencing, and immunolocalization (1996)
    Springer
    Planta 200 (1996), S. 343-352 
    Details
    ISSN: 1432-2048
    Keywords: Antibody production ; Enzyme immunolocalization ; Lilium ; Phosphoglycerate mutase (cofactor independent) ; Vitronectin antibody
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A cofactor-independent phosphoglycerate mutase (PGAM-i) was isolated to homogeneity from monocotyledonous Lilium longiflorum Thunb. Two-dimensional (2D) polyacrylamide gel electrophoresis resolved three PGAM-i forms. This enzyme was originally identified by cross-reactivity to antibodies affinity-purified from 2D gels using human vitronectin (VN). Antibody produced against a denatured protein spot from a 2D gel did not recognize VN protein, but partial protein and DNA sequencing showed similarity of the former protein to maize PGAM-i. Immunoblots from roots, styles, leaves, and anthers showed the presence of PGAM-i in all tissues examined; it was isolated predominantly from the soluble cell fraction, with some present in the insoluble cell fraction. Immunoelectron microscopy demonstrated its localization in the cytoplasm and plastids in root cells near the apical meristem. In addition, immunogold labeling detected signals from the nucleus. The immunohistochemical localization of the enzyme in the nucleus, as well as in the cytosol and plastids, indicates that lily PGAM-i might have multiple functions in the cell.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00200302
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