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Online since: January 2012
Authors: Faik Nuzhet Oktar, Oguzhan Gunduz, Simeon Agathopoulos, E.S. Kayali, S. Salman, Zeeshan Ahmad, Ahmet Talat Inan, Nazmi Ekren, L.S. Ozyegin
Salman et al. also demonstrate similar results at the same temperature and glass content addition when using commercial inert glass (CIG) (as shown in Tab. 2) [23].
Sheng et al. have demonstrated that as a dietary supplement, Boron affects the bone mineral balance in rats [17].
Dupre el al. have also demonstrated the role of boron in vitamin D deficiency [18], while McGrath et al. have extended the use of boron as a suitable material for coating orthopaedic implants [19].
However, Kitsugi et al. show that addition of boron to some popular glass ceramic compositions (0.5-2 wt %) does not promote the dissolution of the glass-ceramic or does it influence bone formation at the interface of ceramic and bone [20] In contrast, Vrouwenvelder et al. [21] and Silva et al. [22] have reported the potential for boron in such applications.
Silva et al. have used boron carbide as a substitute material for biofoams.
Online since: May 2009
Authors: Andreas Öchsner, Markus Merkel, Marco Speich, Wolfgang Rimkus
For example, Gibson et al. [1] developed micromechanical models for foams and Deshpande et al. [5] proposed an isotropic macroscopical model for finite element analysis (FEA).
A significant enhancement of out-of-plane crushing behaviour of Al honeycombs was found in [7,8].
Cymat Al foam was tested in [13] at very high velocity (up to 250 m/s) and the shock enhancement theory [14] was used to explain the apparent rate sensitivity observed.
Zhao et al. reports in [21] experimental results for the impact response of iron and nickel hollow sphere agglomerates.
Kanahashi el al.: Scripta Mat.
Online since: October 2010
Authors: Jun Fu Wei, Yi Ping Zhao, Hai Tao Wang, Li Chen, Hai Yang Zhao
Chen, Byoung Suhk Kim, et al, Macromolecules, Vol. 33(4), 2000, p.1232 [2] L.
Li; et al, Journal of Applied Polymer Science, Vol. 969(6), 2005, p.2163 [5] M.
Mizoshita, et al, Advanced Materials, Vol. 15(16), 2003, p.1335 [6] M.
Morgen, el a1, Macromolecules, Vol. 27(21), 1994, p.6201 [19] L.
Nakatani, et al.
Online since: December 2012
Authors: Jian Jun Fang, Rong Fa Guan, Jie Qing Ma, Hai Tao Shen, Jin Jie Zhang, Chang Rui
,et al: Pharmaceutical Research Vol.25(2008),p.2097-2116
,et al: AAPS PharmSciTech Vol.8(2007), p.1
,and Annapragada, et al: Int.
[11] El-Samaligy, M.S., Afifi, N.N., Mahmoud, E.A.
,et al: Int.
Online since: January 2012
Authors: Masoud Navazandeh Sajoudi, M.F.M. Kamal, Arham Abdullah, M.A Kazerooni Sadi, Fatemeh Torshizi, R Taherkhani
Sustainability is concerned with protecting environment quality, enhancing social prosperity and improving economic performance (Addis et. al. 2002).
Because of that, the construction industry is well known for beign one of the worst environmental polluters (Khairulzan Y. et. al., 2006).
The principle refers to the 3Rs of reduce, reuse, and recycle, which classify WM strategies according to their desirability (Peng et al., 1997).
It is the most desirable option after reduction because a minimum processing and energy use is achieved (Peng et al., 1997).
Formoso, C.T., Isatto, E.L., Hirota, E.H. (1999).
Online since: May 2011
Authors: Othman Mamat, Tahir Ahmad
Karabi Das et al [3] had presented the ZrC-reinforced iron based composites (Fe-ZrC) synthesized by a simple, cost-effective process involving aluminothermic reduction of blue dust (Fe2O3) in the presence of carbon.
Sainatee Chakthin el al [5] prepared iron based powder metallurgy composites by using SiC and WC as reinforcement and investigated that the tensile strengths and hardness of the sintered Fe-WC composites were inferior to those of the sintered Fe materials.
EDS analysis on the silica sand rich phase shown in Fig. 3, revealed the present of high Si with little amount of Al.
Such behaviour was also found by Sainatee Chakthin et al [5] by SiC particles in Fe based composites.
Such behaviour was also found by Joon-Hwan Cho1 et al [6] in metal matrix composites by adding boride particles (TiB2 and ZrB2) in stainless steel (316L) causing to enhance the electrical properties of the composites.
Online since: January 2022
Authors: Van Thinh Pham, Vinh Long Do, Chi Khang Van, Nguyen Phu Thuong Nhan, Nguyen Hong Khoi Nguyen, Manh Khong Nguyen, Nguyen Tan Quoc
Determination of vitamin C content Vitamin C content was studied as detailed by Kapur et al. (2012) with slight modifications [12].
Determination of total polyphenol content Total polyphenol content was performed according to the method of Nyangena et al. (2019) [13].
Determination of antioxidant activity (DPPH assay) Antioxidant activity of the jackfruit extracts was measured according to the method of Nyangena et al. (2019) [13].
El‐Aouar, R.
Nam, et al., Effect of far-infrared radiation on the antioxidant activity of rice hulls, Journal of agricultural and food chemistry, 51 2003 pp. 4400-4403
Online since: March 2023
Authors: Saidat Olanipekun Giwa
Zaini., Abdulsalam, S., El-Nafaty, U.
Zaini., Abdulsalam, S., El-Nafaty, U.
El-Esawi, Z.
Al-Tohamy, S.
Favaro et al., (2015).
Online since: July 2024
Authors: Abdulrahman El Zein, Xavier Brunetaud, Jean Gillibert, Kévin Beck, Mohamad Daher
Exploring Stone Material Behavior and Damage Analysis with Digital Image Correlation Mohamad Daher1,a, Abdul Rahman El Zein1,b, Xavier Brunetaud1,c, Jean Gillibert1,d, Kévin Beck1,e 1LaMé EA 7494, Université d’Orléans, 8 rue Léonard de Vinci, 45072 Orléans France amohamad.daher@univ-orleans.fr, babdulrahman.zein@outlook.com, cxavier.brunetaud@univ-orleans.fr, djean.gillibert@univ-orleans.fr, ekevin.beck@univ-orleans.fr Keywords: Limestone, mechanical behavior, digital image correlation (DIC), strain measurement, full-field deformation, damage, degradation.
Al-Mukhtar, “Gypsum and spalling decay mechanism of tuffeau limestone,” Environ Earth Sci, vol. 74, no. 3, pp. 2209–2221, Aug. 2015, doi: 10.1007/s12665-015-4212-2
Al-Mukhtar, “Strain measurements during capillary water infiltration in porous limestones,” Constr Build Mater, vol. 175, pp. 439–447, Jun. 2018, doi: 10.1016/j.conbuildmat.2018.04.182
Online since: April 2009
Authors: Hideo Nakajima, Hirotaro Mori, Ryusuke Nakamura
Figure 1 shows a bright field image (BFI) of (a) Cu, (b) Zn, (c) Al, and (d) Pb nanoparticles after oxidation in air at 373 K for 3.6 ks (Cu), 423 K for 3.6 ks (Zn and Pb), and at 295 K for 120 s (Al).
On the other hand, hollow oxides were obtained for Zn and Al with a smaller diameter.
Similarly, hollow Al-oxides were formed after the oxidation of Al nanoparticles below about 8 nm in diameter.
The formation of hollow Cu, Zn, and Al oxides seem to be due to the same mechanism.
Moore and E.L.
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