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Online since: September 2019
Authors: Nadia Mouhib, Mohamed El Ghorba, Abderrazak En-Naji
Indeed, the defects generated in the ABS material degrade the reliability of the installation and cause a reduction of the structure lifetime.
Physical chemistry [physics.chem-ph].
Bailon, The fatigue of materials and structures, pp. 328-330. 1980 [10] ASTM D638-03 Standard test method for tensile properties of plastics
Online since: December 2011
Authors: Joanna Michalska
Microbial structures grow practically on all kind of materials, in almost any environment where there is a combination of moisture, nutrients, and a surface.
Effect of applied cathodic polarization of structural steel (sorbite structure) on: a) the amount of S2- ions, b) the content of permeable hydrogen; based on [25] Electropermeation measurements performed both in sterile and inoculated media unequivocally demonstrate that CP does not destroy the bacteria metabolism and even promoted their activity.
Fractographic analysis of hydrogenated DSS after SSRT: (a-c) macrostructures of fractures, (d,e) results of quantitative analysis (area fractions) of hydrogenated fractures Since SRB modify the corrosion behavior of steel subjected to CP, their effect may differ depending on the chemistry and the phase composition of steels.
Online since: December 2012
Authors: De Ming Wang, Wei Min Cheng, Sen Cao, Wen Nie, Gang Zhou
Fig. 6 Exhausted dust purification device structure The dust exhaust hood is installed on overhead guard plate of roadheader body, close to rotary drum, with a height less than 0.4 m, so as not block the sight of the driver.
The dust exhaust hood has a flat structure which is broad ahead and narrow behind.
(In Chinese) [10] Xiaojin WANG, Yiyun BO, Jinnan CHEN, et al: Computers and Applied Chemistry Vol.23 (2006), p. 198-201.
Online since: May 2019
Authors: Bolanle Deborah Ikotun, Ayo Samuel Afolabi, Abiodun Ebenezer Akinwale
These attacks can lead to durability problems, as well as structural integrity of the affected structures.
Materials Chemistry and Physics, 2005 Vol. 93(2005), p. 404 – 411
Proceedings of the first International Conference on Construction Materials and Structures ISBN 978-1-61499-465-7, 825-834, 2014
Online since: May 2019
Authors: Mark Rigel R. Ali, Bryan B. Pajarito
Moreover, the platelet structure of M-BNT and BNT are expected to induce tortuosity in NR which can reduce diffusion in composites.
Meanwhile, the platelet structure of M-BNT and BNT increases the tortuosity and lowers the water uptake of NR.
Coates: Encyclopedia of Analytical Chemistry (J.
Online since: July 2020
Authors: Zhe Shen
When a concrete structure is exposed to a fire, the temperature rises in the initial stage due to the gradual inhalation of heat by the surrounding high-temperature air.
The network is connected according to the specified structure and is trained in a given way.
Journal of Materials Chemistry A, 3(8) (2015) 4595-4603
Online since: May 2022
Authors: Henriette Szilagyi, Aurelian Gruin, Ion Aurel Perianu, Bogdan Bolborea, Cornelia Baeră
Abrasive Garnet Sands for Industrial Application and the Derived Waste (Spent Garnets) Garnet represents a prototypical, rock-forming silicate mineral, with analogous lattice crystalline structures and various chemical compositions, present in metamorphic rocks, as it generally maintains chemical and textural features along its metamorphic development [10-14].
Generally, the experimental procedures considered for most of the consulted studies followed the same protocol: regular concrete/mortar mix design, cement-based or alkali activated type, considered as reference and development of testing mixture, by progressive replacement of sand content with considered waste Garnet; preliminary evaluation of the substituting material (the Garnet waste) is performed, usually with respect to the substituted one (regular sand), in terms of specific physical and chemical properties: visual aspect, granular distribution, water absorption, specific gravity, bulk density, chemistry and mineralogy composition (XRF and XRD investigations).
Weber, Decoding the complex internal chemical structure of garnet porphyroblasts from the Zermatt area, Western Alps, Journal of metamorphic Geology 37(9) (2019) 1151-1169 [11] Information on https://imaggeo.egu.eu/view/3985/ [12] Information on https://www.sandatlas.org/garnet-sand/ [13] H.
Online since: September 2008
Authors: Cedric Plesse, Frederic Vidal, Claude Chevrot, Dominique Teyssié, Guillaume Palaprat, Jonathan Juger, Johann Citerin, Abderrahmane Kheddar
In order to improve the bending rate, short poly(ethylene oxide) side chains into the PEO networks as dangling chains were introduced in the SPE structure through the design of a "branched PEO network" [19].
The CIPN structure exhibits advantages compared to a three-layer actuator since the adhesive interfaces between the PEDOT and SPE are suppressed by construction and replaced by a much larger interaction surface.
Chemistry Materials (1996) 8, 2439-2443
Online since: August 2019
Authors: San Qiang Yang, Chao Qing Zhang, Ming Yang Li, Hui Ran Pi, Zheng Zhong Li
Among them, the mechanical method continues to improve with the improvement of road deicing equipment, but it still faces the key problems of high cost, high energy consumption, inefficient efficiency, and damage to the road surface [1].Chemical method uses snow melting agent to reduce The freezing point of ice and snow is convenient to spread, but the salt contained in the snow melting agent is corrosive, which may cause the pavement structure to peel off and cause pollution to surrounding plants, soil, water and atmosphere [2].
Because the production of low-grade magnetite ore is huge, solving the problem of production and accumulation of discarded low-grade magnetite ore; on the other hand, magnetite meets the performance requirements of pavement aggregates, physical chemistry It is stable in nature and has strong microwave heat generation capability, so it has great potential.
Pavement microwave deicing is a complex problem involving multiple disciplines, not only considering the heating capacity of the road surface, but also the structure and performance of the microwave deicing vehicle.
Online since: May 2004
Authors: Alrksey A. Yaremchenko, A.L. Shaula, J.R. Casanova, Ivan P. Marozau, A.P. Viskup, E.N. Naumovich, Jorge R. Frade, Fernando M.B. Marques, Vladislav V. Kharton
The garnettype A3-xCaxFe5O12 (A = Gd, Y) and Sr4Fe6O13±δ show relatively low oxygen deficiency and low mobility of the oxygen vacancies as a result of specific structural features, such as crooked diffusion pathways in the garnet structure and two-dimensional vacancy diffusion in the layered structure of Sr4Fe6O13-δ [19,28].
Ordering of oxygen vacancies in the brownmillerite-type structure of FIG.3.
Namely, a weak Fe-O bond strength in the structure leads to a higher mobility of oxygen ions, greater oxygen nonstoichiometry variations and higher lattice expansion on heating [10].
In these conditions, Sr4Fe4Co2Oz decomposes forming three phases including layered Sr4Fe6-xCoxO13±δ, perovskite-type SrFe1-yCoyO3-δ and Fe1-xCoxOγ with a rock-salt structure.
The material with x = 0.2 was apparently found single phase with an orthorhombic lattice similar to Sr4Fe6O13±δ (space group Iba2), thus indicating that this structure may tolerate moderate Fe-site deficiency.