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Online since: October 2012
Authors: Yan Qiang Gao, Wen Feng Liu, Huan Huan Xia
Table 7 The statistical results of story drift of steel frame
Statistical parameters
Story drift angle in weak layer
yield point
ultimate load point
Mean μ
1/111
1/26
Standard deviation σ
1/294
1/100
Variation coefficient
0.38
0.26
μ-σ(84.13% guaranteed rate)
1/179
1/36
“Performance level” reflects the building is intact, the design function can be fully performed, non-structural components (curtain wall, partition wall, etc.) and decoration materials are not damaged or only be slightly damaged.
Acknowledgement This paper is funded by the National Natural Science Foundation of China under grant No. 50878110.
[9] Wen Y K, Kang Y J: Journal of Structural Engineering.Vol. 127(2001),p. 330 [10] Bingsheng Huang, Gan-ping Shu: Earthquake Engineering and Engineering Vibration.
[14] Xiaowang Gao, Jvmin Shen: China Civil Engineering Journal.
Acknowledgement This paper is funded by the National Natural Science Foundation of China under grant No. 50878110.
[9] Wen Y K, Kang Y J: Journal of Structural Engineering.Vol. 127(2001),p. 330 [10] Bingsheng Huang, Gan-ping Shu: Earthquake Engineering and Engineering Vibration.
[14] Xiaowang Gao, Jvmin Shen: China Civil Engineering Journal.
Online since: December 2012
Authors: T. Hadjersi, L. Guerbous, S. Naama, G. Nezzal
Silicon nanowires (SiNWs) are an important class of one –dimensional (1D) materials [1, 6] partly due to their implementation in modern industry in established processes.
Lieber, A laser ablation method for synthesis of crystalline semiconductor nanowires, Science 279 (1998) 208-211
Lee, Small-Diameter Silicon Nanowire Surfaces, Science 299 (2003) 1874-1877
Science, 258 (2012) 5628-5637
Adachi, Synthesis of Si nanowire arrays in AgO/HF solution and their optical and wettability properties, Journal of The Electrochemical Society, 158 (7) (2011) K157-K163
Lieber, A laser ablation method for synthesis of crystalline semiconductor nanowires, Science 279 (1998) 208-211
Lee, Small-Diameter Silicon Nanowire Surfaces, Science 299 (2003) 1874-1877
Science, 258 (2012) 5628-5637
Adachi, Synthesis of Si nanowire arrays in AgO/HF solution and their optical and wettability properties, Journal of The Electrochemical Society, 158 (7) (2011) K157-K163
Online since: October 2012
Authors: Hai Ning Liu, Li Jun Guo, Jian Li, Huan Yu Hu, Jia Lu
With adding curing agent to the waste water-based drilling fluid, it can be transformed into solid just like soil, and then landfill disposal in-situ or used it as building materials.
The ingredient of drilling fluid waste except bentonite, hydrolyzed polyacrylamide, carboxymethyl cellulose, polyanionic cellulose, natural plant gum, secondary cationic polymer, there are also some Chemical treatment agents like alkali inorganic salt, sawdust, hyperviscosity plugging agent, anti-collapse asphalt, drill cuttings and weighting materials.
This is a mixed result due to the weighting materials, drill cuttings which generated in the drilling process and the suspended matter that caused by bentonite slurry in the first and second step of coalbed methane drilling. 4) BOD5.
So, there are more than 100 groups of prescription for developing indoor and optimizing four kinds of curing systems in the situation of direct curing, curing after gel breaking and curing after flocculating which main curing materials are lime and sodium silicate, plaster and sodium silicate, lime and calcium oxide, lime and blast furnace slag. 1) With lime and sodium silicate as the main curing agents.
Journal of Shanxi University of Science & Technology. v 28, n 6, p 169-174,Oct 2010 (in Chinese)
The ingredient of drilling fluid waste except bentonite, hydrolyzed polyacrylamide, carboxymethyl cellulose, polyanionic cellulose, natural plant gum, secondary cationic polymer, there are also some Chemical treatment agents like alkali inorganic salt, sawdust, hyperviscosity plugging agent, anti-collapse asphalt, drill cuttings and weighting materials.
This is a mixed result due to the weighting materials, drill cuttings which generated in the drilling process and the suspended matter that caused by bentonite slurry in the first and second step of coalbed methane drilling. 4) BOD5.
So, there are more than 100 groups of prescription for developing indoor and optimizing four kinds of curing systems in the situation of direct curing, curing after gel breaking and curing after flocculating which main curing materials are lime and sodium silicate, plaster and sodium silicate, lime and calcium oxide, lime and blast furnace slag. 1) With lime and sodium silicate as the main curing agents.
Journal of Shanxi University of Science & Technology. v 28, n 6, p 169-174,Oct 2010 (in Chinese)
Online since: July 2015
Authors: Jean Marie Drezet, Guven Kurtuldu, Bastien Mireux
In situ X-ray Diffraction during Casting: Study of Hot Tearing in Al-Zn alloys
Jean-Marie Drezet*, Bastien Mireux and Guven Kurtuldu
Computational Materials Laboratory, Ecole Polytechnique Federale Lausanne, station 12, Lausanne CH-1015, Switzerland
Corresponding author: jean-marie.drezet@epfl.ch
Keywords: solidification, aluminum alloys, rigidity temperature, in situ X-Ray diffraction
Abstract.
In situ X-ray diffraction during casting 2.1 Materials and castings Al-5 wt% Zn alloys were prepared by melting high purity aluminium and pure zinc in a stainless steel crucible at 720 °C.
Cassada, TMS (The Minerals, Metals & Materials Society), 2012, 285-291
-M., Quench induced stresses in AA2618 forgings for impellers: a multi-physics and multi-scale problem, submitted to Journal of Metals, TMS, August 2015
Materials 2014, 7, 1165-1172, http://www.mdpi.com/1996-1944/7/2/1165 [17] Diamond Light Source, Oxfordshire, UK, JEEP web site http://www.diamond.ac.uk/Beamlines/Engineering-and-Environment/I12.html [18] Lalpoor, M., Eskin D.G., Katgermann, L., Met.
In situ X-ray diffraction during casting 2.1 Materials and castings Al-5 wt% Zn alloys were prepared by melting high purity aluminium and pure zinc in a stainless steel crucible at 720 °C.
Cassada, TMS (The Minerals, Metals & Materials Society), 2012, 285-291
-M., Quench induced stresses in AA2618 forgings for impellers: a multi-physics and multi-scale problem, submitted to Journal of Metals, TMS, August 2015
Materials 2014, 7, 1165-1172, http://www.mdpi.com/1996-1944/7/2/1165 [17] Diamond Light Source, Oxfordshire, UK, JEEP web site http://www.diamond.ac.uk/Beamlines/Engineering-and-Environment/I12.html [18] Lalpoor, M., Eskin D.G., Katgermann, L., Met.
Online since: August 2013
Authors: Yan Jun Liu, Bo Tian Chen, Yong Chao Zheng
With massive employment of fly ash, Blastfurnace slag and other pozzolanic materials in concrete, concrete carbonation attracts more and more concerns to engineers and researchers in concrete engineering practices.
RILEM Symp, Barcelona, pp.121-6, E&FN Spon, London, 1993 [2] G.J Osborne, Carbonation of Blastfurnace Slag Cement Concretes, Durability of Building Materials, 4, pp.81-96, Elsevier Science, Amsterdam, 1986 [3] K.
Vayenas, Effect of Composition, Environmental Factors and Cement-lime Mortar Coating on Concrete Carbonation, Materials and Structures, 25, No. 149, pp. 293-304, 1992 [9] P.
Bier, Influence of Type of Cement and Curing on Carbonation Process and Pore Structure of Hydrated Cement Paste, Materials Research Society Symposium, 85, pp. 123-34, 1987 [12] Mchedlow-Petrosyan OP, Babushkin VI.
Journal of Physico-chemistry 66:380, 1962 [20] Wagman DD et al.
RILEM Symp, Barcelona, pp.121-6, E&FN Spon, London, 1993 [2] G.J Osborne, Carbonation of Blastfurnace Slag Cement Concretes, Durability of Building Materials, 4, pp.81-96, Elsevier Science, Amsterdam, 1986 [3] K.
Vayenas, Effect of Composition, Environmental Factors and Cement-lime Mortar Coating on Concrete Carbonation, Materials and Structures, 25, No. 149, pp. 293-304, 1992 [9] P.
Bier, Influence of Type of Cement and Curing on Carbonation Process and Pore Structure of Hydrated Cement Paste, Materials Research Society Symposium, 85, pp. 123-34, 1987 [12] Mchedlow-Petrosyan OP, Babushkin VI.
Journal of Physico-chemistry 66:380, 1962 [20] Wagman DD et al.
Online since: January 2004
Authors: Jai Sung Lee, Sergiy V. Divinski, Christian Herzig
Journal Citation (to be inserted by the publisher)
Copyright by Trans Tech Publications
Grain Boundary Diffusion and Segregation
in Compacted and Sintered Nanocrystalline Alloys
Sergiy Divinski1, Jai-Sung Lee
2, and Christian Herzig1
1
Institut für Materialphysik, Universität Münster, Wilhelm-Klemm-Str. 10,
D-48149 Münster, Germany; email: divin@uni-muenster.de
2
Department of Metallurgy and Materials Science, Hanyang University, Ansan, 426-791 Korea
Keywords: Grain Boundary Diffusion; Interface Segregation; Nanocrystalline Alloys; Sintering.
Introduction Production of bulk nanocrystalline materials is a challenging task in designing new functional materials.
Ni diffusion in both materials was found to be similar.
By this grain growth, at the same time, the GB structure closely adopts that one of GBs in coarse-grained material, as indicated by the similarity of Fe or Ni GB self-diffusion in both materials [5,6].
This fact supports the conclusion that the diffusivities of the nanocrystalline (d~100nm) and coarse-grained (d~0.5mm) materials are very similar.
Introduction Production of bulk nanocrystalline materials is a challenging task in designing new functional materials.
Ni diffusion in both materials was found to be similar.
By this grain growth, at the same time, the GB structure closely adopts that one of GBs in coarse-grained material, as indicated by the similarity of Fe or Ni GB self-diffusion in both materials [5,6].
This fact supports the conclusion that the diffusivities of the nanocrystalline (d~100nm) and coarse-grained (d~0.5mm) materials are very similar.
Online since: March 2020
Authors: Samson Olalekan Odeyemi, Mutiu Adelodun Akinpelu, Rasheed Abdulwahab, Kazeem Adeshina Dauda, Stella Chris-Ukaegbu
Fig. 1 Asa-Dam Bridge showing signs of scouring
Materials and Methods
Determination of the Bridge profile
The profile section of the bridge riverbed was obtained using an electronic surveying instrument (Total station).
The sieving continued until no material passed through the sieve.
It was ensured that no material was lost.
This process was repeated until the weight of the materials on each sieve and the retaining pan (typically the material passing the No. 200 sieve) were recorded.
Gavin, “A review of bridge scour monitoring techniques,” Journal Rock Mech.
The sieving continued until no material passed through the sieve.
It was ensured that no material was lost.
This process was repeated until the weight of the materials on each sieve and the retaining pan (typically the material passing the No. 200 sieve) were recorded.
Gavin, “A review of bridge scour monitoring techniques,” Journal Rock Mech.
Online since: July 2013
Authors: Pavel Procházka, František Vaněk
It is not the purpose to identify microcracks that are present in each material.
The method is based on an experimental or computational model, which is specific to each shape and material of the blades.
According to a selected model and material constants, the residual service life of blades is calculated.
Acknowledgements Support for this work by the Technology Agency of the Czech Republic (Grant TA02020728) and the Institute of Thermomechanics of the Czech Academy of Sciences, v.v.i. is gratefully acknowledged.
Yang, Cumulative fatigue damage and life prediction theories: a survey of the state of the art for homogeneous materials, Int.
The method is based on an experimental or computational model, which is specific to each shape and material of the blades.
According to a selected model and material constants, the residual service life of blades is calculated.
Acknowledgements Support for this work by the Technology Agency of the Czech Republic (Grant TA02020728) and the Institute of Thermomechanics of the Czech Academy of Sciences, v.v.i. is gratefully acknowledged.
Yang, Cumulative fatigue damage and life prediction theories: a survey of the state of the art for homogeneous materials, Int.
Online since: May 2011
Authors: Jian Qin Ma
The engineers need develop a geotechnical model to approximate the behaviors of the geotechnical materials around the excavating areas.
The engineers should assign value to the geotechnical materials, which are always inhomogeneous in terms of compositions, structures, in situ stress, pore water pressure, strength and deformation modulus.
The variability of geotechnical materials is inherent.
The property of the materials should be defined by a range of values rather than by a single number [8].
Smith: Managing Risk in Construction Project, Blackwell Science (1998)
The engineers should assign value to the geotechnical materials, which are always inhomogeneous in terms of compositions, structures, in situ stress, pore water pressure, strength and deformation modulus.
The variability of geotechnical materials is inherent.
The property of the materials should be defined by a range of values rather than by a single number [8].
Smith: Managing Risk in Construction Project, Blackwell Science (1998)
Online since: November 2011
Authors: Zai Fu Yang, Xiao Jing Yang, Li Hong Sun, Lian Lian Xu
It has higher percentage of holocellulose, which is a good resources to produce cation exchange adsorbent material, and can control of biological invasion avoiding the hazards of plant.
Therefore, Solidago canadensis has been selected as raw materials for preparation of cation exchange sorbent, and it has been used for adsorption applications to lead. 1.
Experimental material Solidago canadensis was taken from abandoned agricultural land by Guang Fulin Road, Songjiang District of Shanghhai.
Journal of Heilongjiang Instit ute of Technology. 2008, 22(3):33~35
Paper Science and Technology, 2004, 23(l):50-54.
Therefore, Solidago canadensis has been selected as raw materials for preparation of cation exchange sorbent, and it has been used for adsorption applications to lead. 1.
Experimental material Solidago canadensis was taken from abandoned agricultural land by Guang Fulin Road, Songjiang District of Shanghhai.
Journal of Heilongjiang Instit ute of Technology. 2008, 22(3):33~35
Paper Science and Technology, 2004, 23(l):50-54.