Polymers as corrosion inhibitors for metals in different media a review
Polymers as corrosion inhibitors for metals in different media a review
... polyacrylamide (PA) as inhibitors at 30 – 60°C was studied using gravimetric and gasometric techniques [17] Results obtained indicate that increase in temperature increases the corrosion rate in ... electrochemical behaviour of steel in acidic media- A review Int J Electrochem Sci 2008; 3: 528 Raja PB, Sethuraman MG Natural products as corrosion inhibitors for metals...
Ngày tải lên: 27/04/2015, 09:08
Problems faced by the first-year students at Thanhhoa College of Culture and Arts in developing vocabulary for speaking in different subject areas
... that are fully responsible for the teaching and learning English vocabulary in speaking sections in the learning material “Lifeline-Elementary” for speaking skills The combination of these data ... Culture and Arts in developing vocabulary for speaking in different subject areas with the hope of making a small contribution to finding out some...
Ngày tải lên: 04/08/2015, 09:40
Evaluation of a reproductive health awareness program for adolescence in urban Tanzania-A quasi-experimental pre-test post-test research pptx
... This program is a feasible program for other areas in Tanzania Program evaluation Gallant and Maticka-Tydale compared reproductive health education programs applying the following criteria: theory; ... Public Health 2009, 37:75-86 doi:10.1186/1742-4755-8-21 Cite this article as: Madeni et al.: Evaluation of a reproductive health awareness program for adole...
Ngày tải lên: 22/03/2014, 12:20
Towards a safer use of the Internet for children in the EU – a parents’ perspective ppt
... to a safer and more effective use of the Internet by their child page Flash EB No 248 – Safe Internet for children Analytical report Sources for information and advice about safer use of the Internet ... Flash EB No 248 – Safe Internet for children Analytical report Using filtering and monitoring software and parents’ Internet use Using filter...
Ngày tải lên: 29/03/2014, 19:20
Behaviour of Electromagnetic Waves in Different Media and Structures Part 1 pdf
... (19 90)) aperture admittance versus frequency 14 14 Behaviour of Electromagnetic Waves in Different Media Will-be-set-by -IN- TECH and Structures imaginary part of aperture admittance [mS] 14 12 ... μ= λ0g ˆ Λ ˆ 1+ Γ ˆ 1 Γ , (17 ) 6 Behaviour of Electromagnetic Waves in Different Media Will-be-set-by -IN- TECH and Structures ˆ ε= λ2 ˆ μ 1 + ˆ λ0...
Ngày tải lên: 19/06/2014, 19:20
Behaviour of Electromagnetic Waves in Different Media and Structures Part 2 pot
... to all points of a surface; 22 Behaviour of Electromagnetic Waves in Different Media and Structures - the scattering field is observed in a wave zone, i.e is far enough from a scattering surface ... X sinc2 kB + Kq n sin Y }+ + c q ( ) sinc2 kA + Kq cos f M M nm R A2 + B2 sinc2 (kAX) sinc2 ( kBY ) , + 2C cos θ1 ( where ) (8) 24...
Ngày tải lên: 19/06/2014, 19:20
Behaviour of Electromagnetic Waves in Different Media and Structures Part 3 pot
... two kinds of electromagnetic waves in uniaxial crystal; three kinds of electromagnetic waves in biaxial crystal and three kinds of distorted 72 Behaviour of Electromagnetic Waves in Different Media ... lossy media (79) 63 The Eigen Theory of Electromagnetic Waves in Complex Media 6.2 Eigen equations of electromagnetic waves in lossy medi...
Ngày tải lên: 19/06/2014, 19:20
Behaviour of Electromagnetic Waves in Different Media and Structures Part 4 doc
... step, the electromagnetic parameters corresponding with reflection coefficient of the material measured are obtained This 1 04 Behaviour of Electromagnetic Waves in Different Media and Structures ... line is the real value of S and the thin line is the imaginary one The resonator frequency is 5.78 GHz in the absence of finite conductivity of cavity and elect...
Ngày tải lên: 19/06/2014, 19:20
Behaviour of Electromagnetic Waves in Different Media and Structures Part 5 pdf
... 122 Behaviour of Electromagnetic Waves in Different Media and Structures Fig Delaminated wall paintings in Cave 329 of Mogao Grottoes Fig Delaminated wall paintings in Eastern Audience Hall of ... Behaviour of Electromagnetic Waves in Different Media and Structures In- situ detection of delamination in wall paintings According to characteristi...
Ngày tải lên: 19/06/2014, 19:20
Behaviour of Electromagnetic Waves in Different Media and Structures Part 6 pdf
... drawback of the conclusion [6] is in absence in definitive formulas of angular 154 Behaviour of Electromagnetic Waves in Different Media and Structures distribution of electrons of nuclear mass m2 And ... 138 Behaviour of Electromagnetic Waves in Different Media and Structures It is shown in the interpretation results (Fig 27, Fig 28, Fig 29...
Ngày tải lên: 19/06/2014, 19:20
Behaviour of Electromagnetic Waves in Different Media and Structures Part 7 ppt
... electric field in THz range have been obtained by using the Fourier transformation of the time domain THz 174 Behaviour of Electromagnetic Waves in Different Media and Structures traces [ 17] [18] From ... valleys 172 Behaviour of Electromagnetic Waves in Different Media and Structures As shown in Fig 9, the leading edge of the ETHz observed in...
Ngày tải lên: 19/06/2014, 19:20
Behaviour of Electromagnetic Waves in Different Media and Structures Part 8 docx
... ε0ω − ( 68) 204 Behaviour of Electromagnetic Waves in Different Media and Structures The matrix given by Equation ( 68) includes the information about the propagation of the wave Since the matrix ... engineering techniques for measuring the intensity of radiation is named EMF Dosimetry which would be discussed in the next section and some 214 Behaviour of El...
Ngày tải lên: 19/06/2014, 19:20
Behaviour of Electromagnetic Waves in Different Media and Structures Part 9 pot
... Effects of Electromagnetic Radiation, IEEE Engineering in Medicine and Biology Magazine, pp.37-41 [9] Chen, J & Gandhi, O.P.( 198 9) RF Currents induced in an anatomically based model of a human ... Biomedical Engineering, Ch 5., InTech, ISBN 97 8 -95 3-7610-57-2 236 Behaviour of Electromagnetic Waves in Different Media and Structures [17] Pirogova, E., Vojisavl...
Ngày tải lên: 19/06/2014, 19:20
Behaviour of Electromagnetic Waves in Different Media and Structures Part 10 doc
... coefficient on Ω in case of unconfined phonons 282 Behaviour of Electromagnetic Waves in Different Media and Structures Fig The dependence of absorption coefficient on Ω B in case of unconfined phonons ... effect 276 Behaviour of Electromagnetic Waves in Different Media and Structures of magnetic field on nonlinear absorption of a strong el...
Ngày tải lên: 19/06/2014, 19:20
Behaviour of Electromagnetic Waves in Different Media and Structures Part 11 pot
... 288 Behaviour of Electromagnetic Waves in Different Media and Structures electromagnetic waves This difference can be explained: in the presence of a magnetic field, the energy spectrum of electronic ... 296 Behaviour of Electromagnetic Waves in Different Media and Structures Fig 17 The dependence of nonlinear absorption coefficient on R and...
Ngày tải lên: 19/06/2014, 19:20