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First, the materials are type II superconductors and they expell the magnetic field below Tc to some extent, thus changing the internal magnetic field.
Finally, the materials are mostly non-stoichiometric so that spatial inhomogeneity leads to large NMR linewidths that make shift measurements less precise.
The data analysis shows in all three cases that the materials fail a single-fluid description.
Financial support from Deutsche Forschungsgemeinschaft (International Research Training Group Diffusion in Porous Materials), Deutscher Akademischer Austausch Dienst (PPP USA), the US Department of Energy, the US National Science Foundation and the Royal Society are gratefully acknowledged.
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holding segment Holding 295°C and standing for 30 minute Second cooling -110°C/h, cooling up to room temperature Table 3 Control target of the system Segment Heating rate and Heating time Power supply 0-10kW, 380V±10% and 50Hz Control range room temperature to 600°C Measurement precision ±0.5°C Control precision ±0.5% Display real-time graph Record disk recorder or printout recorder Sampling time adjustable in 1-200 sec Table 4 Sintering curve with 120°C/h rate of heating & 385°C heat preservation Time/minute Initial sect Heating sect Overshoot sect Steady-state sect 0 1 3 10 60 120 180 181 182 182.5 183 185 190 200 Set point/°C 20.0 22.0 24.0 40.0 140.0 240.0 380.0 382.0 384.0 385.0 385.0 385.0 385.0 385.0 Practical/°C 20.0 20.5 21.5 40.0 140.5 240.5 387.0 383.0 383.0 386.0 387.0 386.5 386.0 383.5 error /°C 0.0 1.5 2.5 0.0 -0.5 0.5 1.0 -1.0 1.0 0.0 -2.0 -1.5 -1.0 1.5 References [1] Tang Wei, Zhu Baoliang and Liu Jiajun, in: Research on wear resistance mechanism of a new seal material
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Materials and specimens The material used in this study was austenitic steel (SUS 304).
Acknowledgement This work was supported by the Ministry of Science and Technology through Basic Atomic Energy Research Institute (BAERI) program.
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Next, the material interpolation model should be chosen [6].
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Acknowledgement This research work was financially supported by the Ministry of Education & Science of the Russian Federation (Agreement No. 02.A03.21.0008).
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According to site survey estimates, the moving reserves of the material source of debris flow with the volume of about 40 to 50 thousands cubic meters, as well as the total reserves of about 200 to 300 thousands cubic meters.
Fig. 9 Mountain landslide area and debris flow source material area of Qiuri River gully Debris Flow in the North Section of Sichuan-Tibet Highway in the eastern County.
References [1] Runqiu Huang : Journal of Mountain Science Vol. 8 (2011) No.2, p176~189
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Tab.1: Mechanical indexes of main materials concrete C30/ Mpa fcu ft Ec 26.4 2.3 2.85×104 Rebar HRP400/ Mpa fy fs Es 455 620 2.0×105 CFRP/Mpa ff ft Ef 3793 0.111 2.43×105 Fig.1: Size and reinforcement 2.2 Reinforcement scheme Layers of CFRP Fi=0 Fi= 42.52 Fi= 63.78 1 L0-1 L1-1 L2-1 2 L0-2 L1-2 L2-2 3 L0-3 L1-3 L2-3 4 L0-4 L1-4 L2-4 According to the "reinforced concrete structure design specification"[6], five layers of CFRP is aloud.
Tab.2: The group of the simulated Fig.2: Loading diagram 2.3 The finite element model [7] Using the finite element model SOLID65 + LINK8, analog secondary load part, and to consider the initial crack the selected model analysis, the main material nonlinear analysis.
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Tunnel groundwater mainly gather in the weathered strong weathering layer, permeability coefficient K=0.1~0.6m/d, physical mechanical proprieties index of surrounding rock determined indoor test is shown in Table 1 Table.1 Physical and mechanical properties of surrounding rock material Bulk density λ(kg/m3) Poisson's ratio μ Modulus of elasticity E(Pa) Angle of internal friction Φ Cohesion C(Pa) 2400 0.3 96440000 25o 8000000 Monitor and analysis of surrounding rock deformation of tunnel The key point of deformation control of surrounding rock contains loosing stability of working face, loosing stability of vault, sink of arch foot and deformation of surrounding rock during tunnel excavation [6].
Fig5 The modal of numerical analysis Material parameters Because stress and strain of the model in process of analysis obey Mohr-Coulomb standards, thus soil elastic modulus E, Poisson ratio λ, the rock and soil bulk density ρ, internal friction angle φ, cohesive force C are selected in choosing material parameters.
Numerical simulation and analysis of soft rock tunnel[J].Journal of Guangxi University(Natural Science Edition),2010,35(1):73～77.
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Journal of Beijing Jiaotong University, 2010, 34(4): 1~5.

Introduction Formaldehyde (HCHO) is a colorless gas with strong irritative smell, which belongs to one of volatile organic compounds (VOCs) that are widely used in household materials, medical laboratories and a variety of industries [1].
A series of typical QCM formaldehyde gas sensors had been reported by Bin Ding’s group, in which the sensing materials included PEI/TiO2 nanocomposite [6], PEI/PVA nanofibrous membranes [7], PEI/bacterial cellulose (BC) membrane [8].
Experimental Materials and sensor fabrication.
Afterwards, solution of PVP-MWCNTs composite materials was prepared by mixing 10 ml MWCNTs solution (0.3 wt%) with 10 ml PVP solution, and then was sonicated for one hour.
[10] Z.Ali, Acoustic wave mass sensors, Journal of thermal analysis and calorimetry.55(1999) 397-412