Overtrawlability and mechanical damage of pipe in pipe

... pipe- in -pipe systems, with rigid outer pipes and inner pipes Both the inner pipe and the outer pipe are bare pipes, without concrete coating or any other coatings The diameters of the outer pipes ... analysis of single wall pipes  To investigate the mechanical behaviour of impact response of pipe- inpipes  To establish Finite Element (FE) models to simulate the impa...

Ngày tải lên: 09/09/2015, 11:25

... Improvement in dielectric and mechanical performance of CaCu3.1Ti4O12.1 by addition of Al2O3 nanoparticles Chompoonuch Puchmark1 and Gobwute Rujijanagul*2 Department of Physics, Faculty of ... in terms of the Maxwell-Wagner relaxation [5] Internal interfaces in the polycrystalline CCTO give rise to the polarization in the insulating grain boundary and a...

Ngày tải lên: 20/06/2014, 23:20

... Improvement in dielectric and mechanical performance of CaCu3.1Ti4O12.1 by addition of Al2O3 nanoparticles Chompoonuch Puchmark1 and Gobwute Rujijanagul*2 Department of Physics, Faculty of ... in terms of the Maxwell-Wagner relaxation [5] Internal interfaces in the polycrystalline CCTO give rise to the polarization in the insulating grain boundary and a...

Ngày tải lên: 21/06/2014, 17:20

... Improvement in dielectric and mechanical performance of CaCu3.1Ti4O12.1 by addition of Al2O3 nanoparticles Chompoonuch Puchmark1 and Gobwute Rujijanagul*2 Department of Physics, Faculty of ... in terms of the Maxwell-Wagner relaxation [5] Internal interfaces in the polycrystalline CCTO give rise to the polarization in the insulating grain boundary and a...

Ngày tải lên: 21/06/2014, 17:20

... (worst pain imaginable) [14,15] and LBP-related disability was measured using an Oswestry Disability Questionnaire (ODQ) [16] The Mechanical and Inflammatory Low Back Pain Scale (MAIL Scale) Also at ... sub-types of low back pain: a pilot survey of fifty low back pain patients in a chiropractic setting Chiropractic & Manual Therapies 2011 19:...

Ngày tải lên: 13/08/2014, 15:21

... mechanical role the apoptosis may play In addition, our results indicated the important role of the intrinsic and extrinsic forces in maintaining the tissue integrity and tissue homeostasis during ... actin ring is formed in the late stage of apoptosis Movie 18 Actin-rich protrusion is formed in the leading edge of neighboring cells during late stage of apop...

Ngày tải lên: 09/09/2015, 08:18

... micro- fabricated cantilevers were used to investigate the stresses and density changes upon crystallization in amorphous thin films Two classes of materials with distinct properties and significant ... of Young’s modulus and coefficients of thermal expansion of amorphous Cu-Zr thin films - 162 7.1 Measurement of Young’s modulus of amorphous Cu-Zr...

Ngày tải lên: 11/09/2015, 09:16

... mechanochemical milling Synthesis of Mg- 5wt%Al reinforced with 1wt% of in- situ formed AlN via mechanical milling and power metallurgy techniques Study of microstructures and mechanical properties of Mg MMCs ... combination of strength and ductility of the nc Mg composite Introduction Grain refinement, reinforcement particles, dislocation and solid sol...

Ngày tải lên: 14/09/2015, 14:10

... recovery during milling was confirmed by the corresponding low internal strain The internal strain during milling showed inverse grain size dependence Absence of dislocations within the grains of as ... Crystalline Grain boundary Triple line Quadruple node Intercrystalline 0.6 0.4 0 .2 0.0 10 100 1000 G rain S ize (nm ) Figure 2. 6 Plot of volume fractions of crystalline and inter...

Ngày tải lên: 14/09/2015, 14:10

... JIM 34 (19 93) 952-959 Y Ogino, S Murayama, T Yamasaki, J Less-Common Met 168 (1991) 221- 235 67 In- situ formation of Aluminium Nitride composite powder 27 28 29 30 31 32 33 34 35 36 37 38 39 40 ... evidence of weak and broad AlN peaks The proportion of AlN in the powder increased with further milling Higher and distinct AlN peaks indicating higher 51 In-...

Ngày tải lên: 14/09/2015, 14:10

... resistivity of Mg- 5Al- 1AlN composite sample and pure Mg samples 4. 3.3 Thermal properties From Table 4. 3 and Fig 4. 8, the same trend of αc and Mg is observed for both composite and pure Mg samples Milling ... as AlN and in- situ formed Al1 2Mg1 7, MgH2, MgAl2O4, and MgO during sintering and extrusion Such stable grain structure with no grain gro...

Ngày tải lên: 14/09/2015, 14:10

... [ 15] and Wang et al [ 35] A ctivation v o lum e (b ) 300 Mg- 5Al- 1AlN Mg 30 40 250 200 150 100 50 0 10 20 M illing du ratio n (h) Figure 5. 8 Apparent activation volume of composite and pure Mg ... Fig 5. 5 and Table 5. 2, as in the composite samples, 0h-MMed samples show similar ductility of 8-10% and yield stress ranging from 122 to 138 MPa indicating insign...

Ngày tải lên: 14/09/2015, 14:11

... fraction of second phase constituents, since the Mg grain size is in nanoscale and thus less likely for the reinforcement and in- situ formed particles to exist in the interior of the Mg grain, this ... meaning defined previously Using the parameters for Mg in Table 6. 2, a theoretical value of Dgb is predicted to be 3.7410-28 m2 s-1 However, Qgb value in Table 6...

Ngày tải lên: 14/09/2015, 14:11

... 40h-MMed pure Mg samples This finding implies that the grain refinement to a certain length scale diminishes the significance of solid solution strengthening and dispersion hardening 30hMMed composite ... examination can be performed on the pure Mg samples to confirm the diminishing effect of reinforcements (insitu formed second phase particles and/ or ex -situ reinforcement...

Ngày tải lên: 14/09/2015, 14:11

... illustrates the main structural, theoretical and incentive-related policy implications of circuit theory of finance Section I.2 discusses the special role of the financial system as the core of the circuit ... profitability is declining The internalization of information within the same institution may thus enhance intra -circuit and inter -circuit st...

Ngày tải lên: 24/10/2012, 09:33