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Online since: June 2021
Authors: Oladimeji Taofik Azeez, Ejeta Kennedy Oghenenyore, Okafor Loretta Afoma, Iwuji Samuel Chidi, Samuel Chidi Uzoechi, Ajuogu Eno, Emmanuel Tochukwu Chibuike
Figure 1: Mature Asclepsias syriaca Materials and Methods Materials Thirty (30) experimental Albino rats were obtained from Animal Friend, Douglas Road, Imo State, Nigeria.
Maceration was carried out using 500ml of both methanol and distilled water in the ratio of 50:50 for the extraction of 94.6g plant material.
Analysis of the data Data obtained from this experimental study was coded and analyzed with the use of Statistical Package for Social Science (SPSS) version 21.0.
Akunna, Antiplasmodial effect of some medicinal plants ( picralima nitida and dialium guineense ,) and their combination with Artesunate, Hetero Group of Journal, Int.J.A.PS.BMS, 2 (4) (2013) 189–194
Smiglak et al., Ionic liquids for energy, materials, and medicine, Chem.
Online since: September 2013
Authors: O.D. Osahon, G.E. Okungbowa, O. Ogboghodo
Ogboghodo3,c 1,2 Department of Physics, Faculty of Physical Sciences, University of Benin, Benin City. 3 Department of Radiotherapy, University of Benin Teaching Hospital (UBTH), Benin City.
The microscopic vectors E and B on the introduction of a material medium become macroscopic vectors [18] that is the electric displacement vector D and the magnetic field intensity or magnetic field strength H given by the equation: (1) and (2) Where and are the absolute permittivity and permeability respectively of the medium.
Therefore, (17) Materials and Methods The RF power density, S, magnetic field strength, H, and electric field strength, E, around selected GSM antenna base stations in Benin City were determined by means of a portable Electrosmog model 9810 RF digital meter manufactured by MECO, USA.
The Statistical Package for Social Sciences (SPSS) version 17.0 was used to run the analysis.
Journal of the Nigerian Association of Mathematical Physics (J. of NAMP), Vol. 17 (2010) 469 – 474
Online since: May 2012
Authors: Wen Guang Liu, Wen Fu He, Rui Dong Wang, Lei Hua
Material details of the calculation model are shown in Table 1.
Fig. 1 Non-isolated and isolated multi-lumped mass systems of NPP Table 1 Material property parameters of the calculation model Material E [N·m-2] G [N·m-2] Poisson ratio Density [kg·m-3] Damping ratio [%] Concrete 4×1010 1.6×1010 0.2 2500.0 7.0 Reinforcement 2×1011 8.1×1010 0.3 7800.0 4.0 The scheme of base isolation is implemented for the reactor, which assigns GZY1000 and GZP1000 isolation bearings above the raft foundations, at 10.00m below ground and the height of the isolation layer is 1.0m.
Acknowledgements This work was financially supported by the National Natural Science Foundation (50878124, 50979016, 91905007) and Innovation Program of Shanghai Municipal Education Commission (11ZZ86).
Ibrahim: Recent Advances in Nonlinear Passive Vibration Isolators, Journal of Sound and Vibration, 314:371-452, 2008
Tang: Isolation Design for Structure (Huazhong University of Science&Technology Press, Wuhan, 1993) (in Chinese)
Online since: September 2016
Authors: Fabio Bolzoni, Silvia Beretta, Andrea Brenna, Luciano Lazzari, Maria Pia Pedeferri, Marco Ormellese, Maria Vittoria Diamanti
Monte Carlo simulation has been used for material selection in different industrial application [12].
Pedeferri, Cathodic protection and cathodic prevention, Construction and building materials, 10 (1996), 391-402
Bertolini, Durability design of reinforced concrete structures, Proc. of the Institution of Civil Engineers, Construction Materials 164 (2011), Issue CM6, 273–282 [9] R.M.
Bertolini, The challenge of the performance-based approach for the design of reinforced concrete structures in chloride bearing environment, Construction and Building Materials 79 (2015) 245–254 [12] T.
Pedeferri, Corrosion inhibitors in reinforced concrete structures Part 1: Preventative technique, Corrosion Engineering Science and Technology, 39 (2004), 219-228
Online since: July 2014
Authors: Jose A. González, K.C. Park, Ramon Abascal
These two blocks share the same elastic constants Eb and νb = 0.3, and the constitutive parameters for the layer are El = 1 and νl = 0.3 together with a friction coefficient µ = 0.25 between both materials.
The analysis of the solids is taken under the hypotheses of small deformations and linear elastic behaviour of the materials, with constitutive parameters for the tire Et = 10, νt = 0.3 and for the soil Es = 1, νs = 0.3.
A comparable stiffness of the materials makes unacceptable substituting the soil by a rigid plane and this is the reason why the BE method is used to approximate the half-space while the tire is modelled using the FEM.
Wohlmuth: SIAM Journal on Numerical Analysis, Vol. 38 (2000), p. 989
Felippa: Journal of Applied Mechanics, Vol. 65 (1998), p. 242
Online since: February 2025
Authors: Cyril Francis Praise, Abubakarr Sall, Rukayat Olubunmi Adesina
These expected outcomes of the study also form a baseline for further research on region-specific environmental factors, durability in devices through high-performance materials, and cost-benefit analysis with high-quality protection devices to sustainably expand PV systems in the renewable energy markets.
Long-term studies on device degradation, the evaluation of predictive maintenance, cost-benefit studies on high-quality versus poor-quality devices, and research on advanced materials for durable devices are among them.
Advances in Science, Technology and Engineering Systems Journal. 5. 768-780. 10.25046/aj050692
Journal of Electrical and Computer Engineering, 2016, 1–10. doi:10.1155/2016/8712960 [8] Ye Zhao, Brad Lehman, Jean-François de Palma, Jerry Mosesian, Robert Lyons (2018).
Online since: February 2012
Authors: Chetan S. Solanki, Paresh G. Kale, Sharma Pratibha
The QDs exhibits Quantum Confinement Effect (QCE) and posses electrical and optical properties that are different from the bulk material.
The smaller the size of the QDs, larger will be the enhancement in the band gap as compared to the bulk material.
Multilayer PS is a well-researched material in optical applications because of its advantages to produce complex optical components.
Multifunctional properties of nanocrystalline porous silicon as a Quantum Confined Material. 2002, Vol.
Journal of porous materials. 2000, Vol. 7, pp. 63-66.
Online since: June 2021
Authors: Zhi Guo Gao
For [100] welding direction on (001) substrate orientation, epitaxial [001] columnar dendrite growth region in the bottom is favored at the expense of vulnerable [100] equiaxed dendrite growth region on the top surface to improve metallurgical properties of single-crystal material and reduce preferential location of solidification cracking.
Stray grain formation in welds of single-crystal Ni-based superaloy CMSX-4.Metallurgical and Materials Transactions A,Vol.41A(2010),181-193
Journal of Applied Physics, Vol.94(6)(2003),4203-4209
Acta Materials,88(2015), 283-292
Materials Science Form, Vol.539-543(2007), 3082- 3087.
Online since: November 2017
Authors: Pavlo Saik
It has accumulated not only the potential for building materials, metals and rare earth elements, but also for the generation of thermal energy.
Free space in the casing 2 is filled with loose material, such as sand [24].
Acknowledgements This work was supported by the Ministry of Education and Science of Ukraine, grants No. 0116U008041 and No.0115U002293.
International Journal of Heat and Mass Transfer, 116, 346-351. https://doi.org/10.1016/j.ijheatmasstransfer.2017.08.091 [15]  Tabachenko, M.M., Dychkovskyi, R.O., Falshtynskyi, V.S. (2010).
Application of fine-grained binding materials in technology of hardening backfill construction.
Online since: July 2012
Authors: Rhys Pullin, C.A. Featherston, J. Lees, J. Naylon, C. Paget, Aleksander Kural, Karen M. Holford
Transducers made of a flat square patch of piezoelectric material will be referred to as “patch transducers”.
The Quick Pack model QP10n is made of a 0.025 mm thick sheet of PZT material actuated using the d31 piezoelectric effect [4].
The Smart Material Corp.
The study of generation, propagation and reception of ultrasonic Lamb waves is a large area of science in its own right.
Bartoli, The response of rectangular piezoelectric sensors to Rayleigh and Lamb ultrasonic waves, The Journal of the Acoustical Society of America, vol. 121, no. 1, p. 175, 2007.
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