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Online since: May 2011
Authors: Bin Xia Xue, Han Zhe Li, Zhi Qing Zhao
Based on the project of Landscape Concept Planning of Xinyi Channel Ecological Rehabilitation put forward by Harbin Institute of Technology in Oct, 2008, this paper explores appropriate spatial structures and developing strategies of cold margin areas concerning industry structure, land use patterns, city transportation, physical space, city culture and social structure.
Industrial enterprises specialized in metallurgy, electron, paper making, chemistry and medicine.
Diversity and complexity of city space are enhanced to increase the flexibility and attraction of the spatial structure.
The land adjustment mentioned above aims at increasing the adaptability of the spatial structure in the region.
The construction will use the mix-use spatial structure pattern.
Industrial enterprises specialized in metallurgy, electron, paper making, chemistry and medicine.
Diversity and complexity of city space are enhanced to increase the flexibility and attraction of the spatial structure.
The land adjustment mentioned above aims at increasing the adaptability of the spatial structure in the region.
The construction will use the mix-use spatial structure pattern.
A Novel Methodology for Optimization of Properties, Costs and Sustainability of Aluminium Extrusions
Online since: November 2016
Authors: Trond Furu, Ole Runar Myhr, Rune Østhus, Jostein Søreide
As a demonstration of practical relevance, the software tool was used to optimize mechanical properties and electrical conductivity by manipulation of alloy chemistry, processing parameters, and microstructure characteristics like grain structure, precipitates, dispersoids, and solid solution concentrations.
As for the previous figures, orange and black symbols are used for non-recrystallized and recrystallized structures, respectively, and two different Pareto curves that are drawn correspond to each of these grain structures.
For case study 2, the optimum solution is found within the two green squares for each of the two required grain structures corresponding to non-recrystallized and fully recrystallized structures, respectively.
Orange rectangular symbols represent non-recrystallized structures, while black circular symbols represent partly or full recrystallized structures.
There are no requirements on the grain structure, which means that a fully recrystallized structure is acceptable.
As for the previous figures, orange and black symbols are used for non-recrystallized and recrystallized structures, respectively, and two different Pareto curves that are drawn correspond to each of these grain structures.
For case study 2, the optimum solution is found within the two green squares for each of the two required grain structures corresponding to non-recrystallized and fully recrystallized structures, respectively.
Orange rectangular symbols represent non-recrystallized structures, while black circular symbols represent partly or full recrystallized structures.
There are no requirements on the grain structure, which means that a fully recrystallized structure is acceptable.
Online since: November 2018
Authors: Gary S. Collins
(left) L12 crystal structure.
Indium melts at 157oC, and probe atoms in molten In exhibit only a motionally-averaged zero-frequency quadrupolar perturbation with no structure.
It is difficult to interpret such an enormous difference in terms of the a-sublattice vacancy diffusion mechanism since it would suggest also a thousand-fold difference in vacancy mole fractions in two phases of very similar chemistry.
Site-preferences of Cd- and In-probes in Pd3R phases are assumed to change in a similar way along the lanthanide series of Pd-phases due to the likeness in chemistry and atomic volume of these neighboring sp-elements.
Materials Chemistry, TU Vienna; http://susi.theochem.tuwien.ac.at/. ] can test various experimental observations and hypotheses presented in this paper.
Indium melts at 157oC, and probe atoms in molten In exhibit only a motionally-averaged zero-frequency quadrupolar perturbation with no structure.
It is difficult to interpret such an enormous difference in terms of the a-sublattice vacancy diffusion mechanism since it would suggest also a thousand-fold difference in vacancy mole fractions in two phases of very similar chemistry.
Site-preferences of Cd- and In-probes in Pd3R phases are assumed to change in a similar way along the lanthanide series of Pd-phases due to the likeness in chemistry and atomic volume of these neighboring sp-elements.
Materials Chemistry, TU Vienna; http://susi.theochem.tuwien.ac.at/. ] can test various experimental observations and hypotheses presented in this paper.
Online since: January 2012
Authors: Tomasz Gutt, Pawel Borowicz, Tomasz Malachowski, Mariusz Latek
Lotników 32/46, 02-668 Warsaw, Poland
2 Institute of Physical Chemistry Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
a borowicz@ite.waw.pl, b tgutt@ite.waw.pl, c tmalacho@ite.waw.pl, d mlatek@ite.waw.pl
Keywords: silicon carbide (SiC), Raman scattering, SiC / SiO2 interface, carbonic inclusions
Abstract.
One possibility is the formation of carbonic structures during the process of manufacturing of MOS-type structures.
Spectroscopic data data are assigned to different types of carbonic structures.
The contribution of SiC structures placed at SiC / SiO2 interface is not discussed there.
Such a complicated structure results in complex atomic vibrations.
One possibility is the formation of carbonic structures during the process of manufacturing of MOS-type structures.
Spectroscopic data data are assigned to different types of carbonic structures.
The contribution of SiC structures placed at SiC / SiO2 interface is not discussed there.
Such a complicated structure results in complex atomic vibrations.
Online since: March 2014
Authors: Agata Lisińska-Czekaj, Dionizy Czekaj, Elzbieta Jartych, Tomasz Pikula, Karol Kowal
Structure of Bi1-xNdxFeO3 solid solutions was investigated in the whole range of concentration.
The crystalline structure of bismuth ferrite is well known and described in the literature.
Substitution of Nd introduces weak ferromagnetism within the structure of BiFeO3.
Applications to Physics, Chemistry and Biology, Elsevier, 1983
Barrel, The electronic properties of complex oxides of bismuth with the mullite structure, J.
The crystalline structure of bismuth ferrite is well known and described in the literature.
Substitution of Nd introduces weak ferromagnetism within the structure of BiFeO3.
Applications to Physics, Chemistry and Biology, Elsevier, 1983
Barrel, The electronic properties of complex oxides of bismuth with the mullite structure, J.
Online since: July 2011
Authors: Huan Ming Chen, Min Luo, Xin Li, Xin Xin Lin, Dong Yang
China
2School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, P.R.
Introduction Porous ceramics with open pore structures have received a great deal of attention since their wide applications in catalyst carrier, sensor, porous electrode, biomaterials, and so on.
Nishihara et al. [7-8] used freeze casting to produce aligned porous silica structures by directional freezing.
The composite is still retained the layer structure characteristics of the preform.
The resultant composite is retained the layer structure characteristics of the preform during pressureless infiltration.
Introduction Porous ceramics with open pore structures have received a great deal of attention since their wide applications in catalyst carrier, sensor, porous electrode, biomaterials, and so on.
Nishihara et al. [7-8] used freeze casting to produce aligned porous silica structures by directional freezing.
The composite is still retained the layer structure characteristics of the preform.
The resultant composite is retained the layer structure characteristics of the preform during pressureless infiltration.
Online since: June 2012
Authors: Ekaterina D. Politova, Galina M. Kaleva, Alexander V. Mosunov, Andrei G. Segalla, Jiang Tao Zeng
Segalla3, Jiangtao Zeng4
1L.Ya.Karpov Institute of Physical Chemistry, Obukha s.
Phase composition and crystal structure parameters were determined using the X-ray diffraction (DRON-3M with CuKa-beam, ProfitVZ software).
Such behavior of the crystal structure parameters points to different interactions of the chromium oxide additives with tetragonal or monoclinic phases depending on composition of the samples.
Cross, et al., Tetragonal-to-monoclinic phase transition in a ferroelectric perovskite: The structure of PbZr0.52Ti0.48O3, Phys.
Thakur, Optimization Criteria for Optimal Placement of Piezoelectric Sensors and Actuators on a Smart Structure: A Technical Review, V.
Phase composition and crystal structure parameters were determined using the X-ray diffraction (DRON-3M with CuKa-beam, ProfitVZ software).
Such behavior of the crystal structure parameters points to different interactions of the chromium oxide additives with tetragonal or monoclinic phases depending on composition of the samples.
Cross, et al., Tetragonal-to-monoclinic phase transition in a ferroelectric perovskite: The structure of PbZr0.52Ti0.48O3, Phys.
Thakur, Optimization Criteria for Optimal Placement of Piezoelectric Sensors and Actuators on a Smart Structure: A Technical Review, V.
Online since: June 2014
Authors: Mario Rosso, Ildiko Peter
This structure does not favour the ions flux toward the area directly exposed to the anode.
The resulted “cauliflower-like structure” can be described with irregular surface.
The columnar structure (Fig. 5b) of the Al grains occurred preferentially on limited sites, where dendritic growth and poor adherence to the steel substrate have been developed.
Figure 5 Microstructure of the sample after deposition with high agitation velocity Phase structure analyses has been carried out using X-Ray diffraction.
[12]Jintao Tian, Xuezhong Liu, Jianfei Wang, Xin Wang, Yansheng Yin,Electrochemical anticorrosion behaviors of the electroless deposited Ni–P andNi–P–PTFE coatings in sterilized and unsterilized seawater, Materials Chemistry and Physics 124 (2010) 751–759
The resulted “cauliflower-like structure” can be described with irregular surface.
The columnar structure (Fig. 5b) of the Al grains occurred preferentially on limited sites, where dendritic growth and poor adherence to the steel substrate have been developed.
Figure 5 Microstructure of the sample after deposition with high agitation velocity Phase structure analyses has been carried out using X-Ray diffraction.
[12]Jintao Tian, Xuezhong Liu, Jianfei Wang, Xin Wang, Yansheng Yin,Electrochemical anticorrosion behaviors of the electroless deposited Ni–P andNi–P–PTFE coatings in sterilized and unsterilized seawater, Materials Chemistry and Physics 124 (2010) 751–759
Online since: June 2013
Authors: Marco Sommariva
X-Ray diffractometers are common in laboratories for solid state material research, where X-Ray Diffraction (XRD) is mostly used for phase identification and structure determination.
A Pair Distribution Function (PDF) is then calculated by Fourier transform, providing the probability of finding atoms separated by a certain distance, from which local structure and distortions can be studied [2,3].
Experimental Details Two TiO2 nanopowders (samples #1 and #2), synthesized by wet chemistry method, were taken from PANalytical kit of Verification Samples for SAXS, and were used for the different measurements.
By fitting the produced Pair Distribution Function (within PDFgui [17]), it was verified that the interatomic distances of both nanopowders match the ones corresponding to the anatase structure (see Fig. 2).
Left: Fit of the experimental PDF with the anatase structure for Sample #1.
A Pair Distribution Function (PDF) is then calculated by Fourier transform, providing the probability of finding atoms separated by a certain distance, from which local structure and distortions can be studied [2,3].
Experimental Details Two TiO2 nanopowders (samples #1 and #2), synthesized by wet chemistry method, were taken from PANalytical kit of Verification Samples for SAXS, and were used for the different measurements.
By fitting the produced Pair Distribution Function (within PDFgui [17]), it was verified that the interatomic distances of both nanopowders match the ones corresponding to the anatase structure (see Fig. 2).
Left: Fit of the experimental PDF with the anatase structure for Sample #1.
Online since: January 2016
Authors: Hamimah Abdul Rahman, Siti Fairus Jimat, Linda Agun
However, Co-based cathode materials have large thermal expansion coefficients because of the high ionic vacancies in their structures [4].
The matching index on the crystal structure shows a cubic lattice with pattern JCPDS No. 01-075-0157.
According to Singh et al. (2010), the intensity of the diffraction lines shows changes in the separation of the structure.
Nonetheless, soaking time of 1 hr and 2 hr retained its own LSCF and SDCC structure which demonstrate good chemical compatibility without the existance of new phase, Li2CrO4.
Chemistry and Physics. 141 (2013) 752
The matching index on the crystal structure shows a cubic lattice with pattern JCPDS No. 01-075-0157.
According to Singh et al. (2010), the intensity of the diffraction lines shows changes in the separation of the structure.
Nonetheless, soaking time of 1 hr and 2 hr retained its own LSCF and SDCC structure which demonstrate good chemical compatibility without the existance of new phase, Li2CrO4.
Chemistry and Physics. 141 (2013) 752