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Online since: April 2008
Authors: Hirofumi Akamatsu, Shunsuke Murai, Koji Fujita, Katsuhisa Tanaka
Magnetic Properties of Amorphous Fe2O3-R2O3 (R = La, Gd and Tb) Thin Films Fabricated by Sputtering Method Hirofumi Akamatsu 1, a, Shunsuke Murai1, b , Koji Fujita 1, c and Katsuhisa Tanaka1, d 1 Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan a akamatsu@dipole7.kuic.kyoto-u.ac.jp, bmurai@dipole7.kuic.kyoto-u.ac.jp, c fujita@dipole7.kuic.kyoto-u.ac.jp, d tanaka@dipole7.kuic.kyoto-u.ac.jp Keywords: Magnetic Properties, Spin Glasses Abstract.
Magnetic oxide glasses can be regarded as a system in which magnetic moments localized at cations are randomly distributed in a glass structure.
It may be naturally speculated that magnetic moments necessarily experience a frustrated situation, because such a magnetic structure that keeps all localized pairs of magnetic moments antiferromagnetic is not stable in an amorphous structure.
Online since: November 2016
Authors: You Liang He, In Ho Jung, Stephen Yue, Amir Rezaei Farkoosh, Babak Shalchi Amirkhiz, Abu S.H. Kabir, Jing Su, Mehdi Sanjari
Grain structure was revealed by election channeling contrast imaging (ECCI) in SEM.
The grain structure of the alloys after 90 min of annealing is revealed by ECCI in Fig. 2.
On the other hand, in the Mg-4Zn-1Nd alloy, it appears that the microstructure is replaced by equiaxed structure.
It seems that the composition of the precipitates changes with alloy chemistry.
Online since: February 2013
Authors: Nan Jiang, Li Ping Zhang, Qing Hai Deng, Jia Yuan Cao
Many factors affect the occurrence of primary PAHs, including coalification[7, 8], element [9-11], macerals [12], chemical structure [7], and sedimentary environment[12], and so on.
It is concluded that vitrinite can make an impact on PAHs formation in coal, and this effect may be associated with the chemical composition, structure and even forming process of vitrinite.
When coalification develops into the higher-rank bituminous (meager coal) and anthracite, the molecular structure of coal appears directional and condensation degree of aromatic groups grows further.
Wang: Environmental Chemistry, Vol. 29(2010), p. 369-375 (in Chinese) [5] X.
Online since: July 2015
Authors: Robert Černý, Igor Medveď, Jaromír Žumár, Iñigo Antepara
A Contribution to the Treatment of Salt Damage in Historical Buildings ANTEPARA Iñigo1, a, MEDVEĎ Igor1,b *, ŽUMÁR Jaromír1,c and ČERNÝ Robert1,d 1Department of Materials Engineering and Chemistry, Faculty of Civil Engineering, Thakurova 7, 166 29 Prague, Czech Republic einigo.antepara@fsv.cvut.cz, bigor.medved@fsv.cvut.cz, cjaromir.zumar@fsv.cvut.cz, dcernyr@fsv.cvut.cz Keywords: Historical buildings, salt damage, desalination.
Salt ions penetration into porous structure of building materials occurs either by diffusion (due to the salt concentration gradient), or by advection (due to the water movement in material, commonly combined with diffusion) [7].
Testing of hardened mortars, a process of questioning and interpreting, Materials and Structures/Materiaux et Constructions 42(7) (2009) pp. 853-865
Rörig-Dalgaard, Further developments of a poultice for electrochemical desalination of porous building materials: minimization of side effects, Materials and Structures (2014) Article in press
Online since: July 2015
Authors: Pavol Kunzo, Eva Kováčová, Peter Lobotka
However there is an intermediate range of voltages from around 1.25 to 2.25 V, that we considered the EPD window, where sensor structure can withstand the EPD process for sufficiently long time in order to immobilize nanoparticles without damaging the PAni film.
Discrimination between the individual gases could be possible by using the several gas sensors based on the same PAni structure and functionalized with different nanoparticles (the principle of electronic nose).
Although we have demonstrated the immobilization of nanoparticles only onto thin PAni film, the EPD technique can be adopted to functionalize much complicated structures (e.g. nanofibers).
Liu, Ionic liquid lubricants: designed chemistry for engineering applications., Chem.
Online since: July 2019
Authors: Ida Ayu Dwitasari, Rachmawati Rachmawati
Inclusion Complexes between Starch and Vanillin Rachmawati Rachmawati* and Ida Ayu Dwitasari Inorganic and Physical Chemistry Division, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl.
This indicated that the structures of the native starch and the complexed starch were different.
This showed that the host-guest interactions between starch and vanillin in the resulting complexes affected the structures and properties of the complexes.
Andrikopoulos, Study of the solubility, antioxidant activity and structure of inclusion complex of vanillin with β-cyclodextrin, Food Chem. 101 (2007) 652-658
Online since: January 2013
Authors: Ying Jian Chen
Such devices are fabricated using a wide range of technologies, having in common the ability to create structures with micro- and even nanometer accuracies.
Moreover, a multidimensional interaction space(not only electrical connections)is present and it is a very multidisciplinary field as next to physics and engineering other disciplines such as chemistry, material science and mechanics play an important role.
Table 1 Important differences between MEMS and IC MEMS IC Unit Cell No unit cell Transistor Front-end Technology No single stable technology CMOS Interaction Space Multidimensional Electrical Basic Disciplines Multidisciplinary Physics and engineering Process or One product, Many products Fabrication Technology one process share a common process MEMS technology is a fascinating and exciting field that has played and will continue to play a very important role in building a bridge between science and society to translate physical properties and material characteristics into structures and devices that can have a large positive impact on people’s lives.
However, very little is known about the elastic behavior and long-term stability of SiC micro- and nano-structures at elevated temperatures.
Online since: June 2019
Authors: Rostislav Drochytka, Jiří Kolisko, Petr Figala, Radek Hermann
Due to the pozzolanic character, the fly ash influences mainly the long-term physical-mechanical properties, which helps significantly to close the structure of the cement matrix.
Acknowledgement This paper has been worked out with financial support from the budget under the project FAST−S−18−5406, “Study of advanced silicate composites structure with emphasis on the characterization of secondary raw materials influence” and under the project No.
LO1408 "AdMaS UP – Advanced Materials, Structures and Technologies", supported by Ministry of Education, Youth and Sports under the “National Sustainability Programme I”.
Brno: BUT: Faculty of Chemistry. 2013
Online since: August 2019
Authors: Svetoslav Isaakovich Volfson, Larisa Yuryevna Zakirova, Alina Ildusovna Nigmatullina, Yulia Sergeevna Karaseva
Effect of the Technological Additives on the Properties of Recycled Polyolefins Svetoslav Isaakovich Volfson, Larisa Yuryevna Zakirovaa, Yulia Sergeevna Karasevab, Alina Ildusovna Nigmatullina Chemistry and Processing Тechnology of Еlastomers Department Kazan National Research Technological University 68 Karl Marx street, Kazan, 420015, Republic of Tatarstan, Russian Federation azakirova.knitu@mail.ru, bkaraseva_j@mail.ru Keywords: technological additives, polyolefins, differential scanning calorimetry, thermal gravimetric analysis.
CYD-2100-a (1) and CYD-2100-b (2) (according to the passport) are new high polymer dispersants with dendritic structure.
The end-of-life challenge for flexible packaging: Multilayer films, barrier structures and pouches // International Flexible Packaging and Extrusion Division Conference 2018 - Setting the Pace for Innovation in Flexible Packaging. 2018.
Characterization of Crystalline Structure and Free Volume of Polyamide 6/Nitrile Rubber Elastomer Thermoplastic Vulcanizates: Effect of the Processing Additives // Journal of Applied Polymer Science. 2017.
Online since: February 2015
Authors: Ramani Mayappan, Nor Aishah Jasli, Hamidi Abd Hamid
The Cu3Sn intermetallic has emerged planar structure with darker contrast appearance compare to Cu6Sn5.
As the time of aging increase to 60 and 90 minutes, the Cu3Sn become thicker with planar structure as shown in Figs. 6 and 7.
The (Cu,Ni,Zn)6Sn5 structure still in scallop shape.
Materials Chemistry and Physics, 123(2–3) (2010) 629-633