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  • Trans Tech Publications, Ltd.  (59)
  • 1
    Online Resource
    Online Resource
    Numerical Analysis of Tunneling Influence on Settlement of Existing Pile Foundations Based on Orthogonal Design
    Trans Tech Publications, Ltd. ; 2012
    In:  Applied Mechanics and Materials Vol. 170-173 ( 2012-5), p. 1419-1426
    Details
    In: Applied Mechanics and Materials, Trans Tech Publications, Ltd., Vol. 170-173 ( 2012-5), p. 1419-1426
    Abstract: Because of the Limited urban space and the development of transport, underground space development, especially the metro construction, is vigorously developed in many cities. Subway passing through the existing building inevitably may cause the settlement and deformation of the buildings and their foundations. Therefore, research on the influence of tunneling on existing buildings has important significance. In order to study the influence of tunneling on settlement of existing pile foundations, soil elastic modulus, cohesion, friction angle, tunneling sizes, distance between tunnel opening boundaries and existing pile foundation etc. are discussed as analysis factors in this paper. The calculation schemes are designed based on orthogonal design, and then the influence of tunneling on existing buildings is researched according to the numerical calculation model which is established by the finite element software. Finally, the sensitivity of pile foundation settlement to various factors is analyzed according to the results of simulation analysis. we can draw the conclusions: the influence of tunneling on settlement of existing pile foundation is positively correlated with tunneling sizes, and is negatively correlated with soil parameters and distance between tunnel opening boundaries and existing pile foundations; The settlement of pile foundations can be effectively controlled by application of composite anchor isolation piles around the existing buildings piles, but with the increase of soil parameters and distance between tunnel opening boundaries and existing pile foundations, the strengthening effects are decreased; soil elastic modulus and excavation sizes are the key impact-factors of pile settlement within the distance of 5m between tunneling boundaries and existing pile foundations, which have extremely remarkable effect on the subsidence of pile foundations.
    Type of Medium: Online Resource
    ISSN: 1662-7482
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMM.170-173
    DOI: 10.4028/www.scientific.net/AMM.170-173.1419
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2012
    detail.hit.zdb_id: 2251882-4
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  • 2
    Online Resource
    Online Resource
    Research on the Influence of NС Quick-Point Grinding Parameters to Complex Rotator Surface Roughness
    Trans Tech Publications, Ltd. ; 2014
    In:  Applied Mechanics and Materials Vol. 556-562 ( 2014-5), p. 1083-1086
    Details
    In: Applied Mechanics and Materials, Trans Tech Publications, Ltd., Vol. 556-562 ( 2014-5), p. 1083-1086
    Abstract: It studies the influence of linear speed of grinding wheel and rotational speed of workpiece to complex rotator surface roughness. Using self-designed NC quick-point grinding machine do the grinding test at different linear speeds of grinding wheel and different rotational speeds of workpiece, gained the relationship curve between the linear speed of grinding wheel, rotational speed of workpiece and complex rotator surface roughness. The test results show that using quick-point grinding technology can grind multiple external cylindrical and cone-shaped surfaces by only one time fixing, it can get 0.025um surface roughness in a reasonable condition of the grinding parameters. During point grinding process, higher wheel speed gets better surface roughness, higher workpiece shaft speed gets worse surface roughness.
    Type of Medium: Online Resource
    ISSN: 1662-7482
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMM.556-562
    DOI: 10.4028/www.scientific.net/AMM.556-562.1083
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2014
    detail.hit.zdb_id: 2251882-4
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  • 3
    Online Resource
    Online Resource
    Emerging Technologies for Phosphorus Removal and Recovery: A Review
    Trans Tech Publications, Ltd. ; 2014
    In:  Applied Mechanics and Materials Vol. 507 ( 2014-1), p. 702-706
    Details
    In: Applied Mechanics and Materials, Trans Tech Publications, Ltd., Vol. 507 ( 2014-1), p. 702-706
    Abstract: Phosphorus is an essential element for life. But the release of phosphorus from wastewater effluents has identified as the major causes of eutrophication in aquctic environment and the effluent standards are becoming more and more stringent. Thus, both biological and chemical phosphorus remove processes have been widely used to remove phosphorus from wastewater, as well as combined phosphorus removal and recovery processes. This review presents the current and emerging investigation on phosphorus removal and recovery. The purpose of this paper is to guide or inspire researchers who are seeking feasible and efficient systems and processes for phosphorus removal and recovery.
    Type of Medium: Online Resource
    ISSN: 1662-7482
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMM.507
    DOI: 10.4028/www.scientific.net/AMM.507.702
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2014
    detail.hit.zdb_id: 2251882-4
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  • 4
    Online Resource
    Online Resource
    The Analysis and Simulation for Improved Cutting Process Based on Finite Element Method (FEM) Analysis
    Trans Tech Publications, Ltd. ; 2014
    In:  Applied Mechanics and Materials Vol. 556-562 ( 2014-5), p. 4343-4346
    Details
    In: Applied Mechanics and Materials, Trans Tech Publications, Ltd., Vol. 556-562 ( 2014-5), p. 4343-4346
    Abstract: The paper proposed the practical metal cutting process using FEM to simulate the traditional cutting process, the simulation and the analysis of the results are based on the support of DEFORM-3D finite element software, and the characteristic between Galerkin Algorithm and FEM analysis is also analyzed. Then the paper processed the modeling procedure for FEM using Lagrange and Euler algorithm, the simulation result is then compared to traditional ones and proved to be more efficient and with higher accuracy.
    Type of Medium: Online Resource
    ISSN: 1662-7482
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMM.556-562
    DOI: 10.4028/www.scientific.net/AMM.556-562.4343
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2014
    detail.hit.zdb_id: 2251882-4
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  • 5
    Online Resource
    Online Resource
    Analysis on Health Risk of Volatile Organic Compounds of Poplar Composite Biomaterial by GC-MS
    Trans Tech Publications, Ltd. ; 2010
    In:  Advanced Materials Research Vol. 129-131 ( 2010-8), p. 60-64
    Details
    In: Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 129-131 ( 2010-8), p. 60-64
    Abstract: Poplar composite biomaterial, which self bonded under high temperature and pressure, is a new indoors materials. In order to evaluate its potential health risk to human settlements, the volatile organic compounds of poplar composite biomaterial were adsorbed and determined by TD-GC-MS. The result were: (1) The main constituents of volatiles at 40°С were acetic acid(50.6%), 1,2-benzenedicarboxylic acid, mono(2-ethylhexyl) ester(8.48%), [1,1':3',1''-terphenyl]-2'-ol(3.98%), 1,2-propanediol, 3-benzyloxy-1,2-d iacetyl-(3.12%), etc. (2) The main constituents of volatiles at 60°С were acetic acid(46.7%), 1,2-benzenedicarboxylic acid, mono(2-ethylhexyl) ester(7.93%), cedrol(5.53%), butane, 1-(benzyloxy)-2-[(benzylox y)methyl] - (5.43%), [1,1':3',1''-terphenyl]- 2'-ol(3.72%), 1-propene, 3-(2-cyclopentenyl)-2-m ethyl-1,1- diphenyl-(3.18%), etc. Generally, the poplar composite biomaterial was safe under 40-60°С.
    Type of Medium: Online Resource
    ISSN: 1662-8985
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMR.129-131
    DOI: 10.4028/www.scientific.net/AMR.129-131.60
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2010
    detail.hit.zdb_id: 2265002-7
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  • 6
    Online Resource
    Online Resource
    The Promising Resource Utilization Methods of Excess Sludge: A Review
    Trans Tech Publications, Ltd. ; 2014
    In:  Applied Mechanics and Materials Vol. 507 ( 2014-1), p. 777-781
    Details
    In: Applied Mechanics and Materials, Trans Tech Publications, Ltd., Vol. 507 ( 2014-1), p. 777-781
    Abstract: Energy crisis caused short supply of reliable and affordable energy for our future generations and ourselves, meanwhile more and more stringent laws and regulations were established on excess sludge treatment and disposal, the potential for energy recovery from excess sludge has already attracted much more attentions from researchers domestic and abroad. Resource utilization for excess sludge is the best way to solve sludge treatment and disposal problem, simultaneously create a sustainable energy to fulfill present and future energy requirements and thus reduce our dependence on non-renewable resources. This paper presents the current promising research focuses on excess sludge resource utilization methods, i.e. anaerobic digestion, pyrolysis, gasification, microbial fuel cell (MFC), microbial electrolysis cell (MEC).
    Type of Medium: Online Resource
    ISSN: 1662-7482
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMM.507
    DOI: 10.4028/www.scientific.net/AMM.507.777
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2014
    detail.hit.zdb_id: 2251882-4
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  • 7
    Online Resource
    Online Resource
    The Application of Computational Fluid Dynamics (CFD) in Wastewater Biological Treatment Field
    Trans Tech Publications, Ltd. ; 2014
    In:  Applied Mechanics and Materials Vol. 507 ( 2014-1), p. 711-715
    Details
    In: Applied Mechanics and Materials, Trans Tech Publications, Ltd., Vol. 507 ( 2014-1), p. 711-715
    Abstract: Computational fluid dynamics (CFD), which is a widely used technique, has been applied to the wastewater biological treatment field recently. It can clearly reveal the inner flow state that is the hydraulic condition of a biological reactor. In engineering, it is able to guide the optimization, and even the design. This paper reviews the application of CFD in the main biological reactors, including: stabilization pond, membrane bioreactor and activated sludge reactor. In addition, the existing difficulties are thoroughly analyzed from three aspects: the current researches, the limitation of the studies and the reasons of the limitation. The ultimate purpose of this review is to point out the developing direction of the research and to inspire researchers to expand the use of CFD in this field.
    Type of Medium: Online Resource
    ISSN: 1662-7482
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMM.507
    DOI: 10.4028/www.scientific.net/AMM.507.711
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2014
    detail.hit.zdb_id: 2251882-4
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  • 8
    Online Resource
    Online Resource
    Another Kind of Crack on .NET Programs
    Trans Tech Publications, Ltd. ; 2014
    In:  Applied Mechanics and Materials Vol. 496-500 ( 2014-1), p. 2053-2056
    Details
    In: Applied Mechanics and Materials, Trans Tech Publications, Ltd., Vol. 496-500 ( 2014-1), p. 2053-2056
    Abstract: The .NET platform is a very important commercial software platform, so understanding its protection and crack becomes very necessary. In the introduction, this article briefly introduces the platform, analyses the status quo of platform crack at home and abroad and what technology need to crack. Detailed descriptions of the crack .NET assembly principles and analytical methods for cracking tools are also described. Based on the existing methods, it provides an analogical method of crack, and it worked on a famous commercial software well.
    Type of Medium: Online Resource
    ISSN: 1662-7482
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMM.496-500
    DOI: 10.4028/www.scientific.net/AMM.496-500.2053
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2014
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  • 9
    Online Resource
    Online Resource
    DT-GC-MS Analysis on Environmental Risk of Poplar Engineering Biocomposites
    Trans Tech Publications, Ltd. ; 2010
    In:  Advanced Materials Research Vol. 129-131 ( 2010-8), p. 780-783
    Details
    In: Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 129-131 ( 2010-8), p. 780-783
    Abstract: Poplar engineering biocomposites is a new engineering materials. In order to evaluate its potential environmental risk to human, the volatile organic compounds of poplar engineering biocomposites were adsorbed and determined by TD-GC-MS. The result were: (1) The main constituents of volatiles at 40°С were bicyclo[2.2.1]heptan-2-one, 1,7,7- trimethyl-, (1r)-(31.55%), 1,2-benzenedicarboxylic acid, mono(2-ethylhexyl) ester(14.94%), 2,6,10,14,18,22- tetracosahexaene, 2,6,10,15,19,23-hexamethyl-(7.34%), [1,1':3',1''-terphenyl] -2'-ol(5.97%), cedrol (5.29%), caryophyllene(5.26%), 3-[(1z)-1,3-butadienyl]-4-vinylcyc lopentene(3.92%), etc. (2) The main constituents of volatiles at 60°С were 1,2-benzenedicarboxylic acid, mono(2-ethylhexyl) ester(17.13%), [1,1':3',1''-terphenyl] -2'-ol(9.11%), camphor(8.6%), 4-imidazolidinone, 5-(phenylmethyl)-2-thioxo- (7.6%), cedrol(7.26%), 2,5-cyclohexadiene-1,4-dione, 2,5- diphenyl-(4.58%), 1h-indole, 5-methyl- 2-phenyl-(3.94%), 2,6,10,14,18,22-tetracosahexaene, 2,6,10,15,19,23-hexamethyl- (3.63%), phenol,2,4-bis(1,1-dimethylethyl) (3.56%), etc. So the poplar engineering biocomposites was safe under 40-60°С.
    Type of Medium: Online Resource
    ISSN: 1662-8985
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMR.129-131
    DOI: 10.4028/www.scientific.net/AMR.129-131.780
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2010
    detail.hit.zdb_id: 2265002-7
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  • 10
    Online Resource
    Online Resource
    A Research on the Distinction Method of Oils and Chemicals Carried in Bulk at Sea
    Trans Tech Publications, Ltd. ; 2013
    In:  Advanced Materials Research Vol. 807-809 ( 2013-9), p. 958-961
    Details
    In: Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 807-809 ( 2013-9), p. 958-961
    Abstract: In accordance with MARPOL convention, reformates and other aromatic oil belong to Oils, and their marine transportation should comply with Convention Annex I. While these goods may contain some NLSs defined in Annex II, and their transportation should comply with Annex II and IBC code. To make a distinction between the goods defined in Annex I and Annex II, the technical instrument and distinction in relevant industries are researched, in the paper the related definitions and present distinction methods in relevant conventions are analyzed, and a modified distinction method is put forward.
    Type of Medium: Online Resource
    ISSN: 1662-8985
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMR.807-809
    DOI: 10.4028/www.scientific.net/AMR.807-809.958
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2013
    detail.hit.zdb_id: 2265002-7
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