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Online since: January 2013
Authors: Zhi Qiang Wang, Jun Jie Liao, Qian Zhao, Hai Lin, Shu Wen Jiang
When the doping concentration of S2- is 1 wt%, the phosphor shows the maximum emission intensity, which is higher than that of Sr3SiO5: Eu2+ without S2-.
Fig. 1 XRD patterns of Sr3SiO5: Eu2+ with various S doping concentration Excitation and emission spectra.
It is shown that there is no remarkable change between the two excitation spectra; both two excitation bands have a broad band ranging from 300 to 500 nm and two peaks centered at 413 and 479 nm are present, respectively.
References [1] J.Y.
Zhang, X Zhang, et al.: Journal of Applied Physics Vol. 105 (2009), p013501-1 [9] B.
Fig. 1 XRD patterns of Sr3SiO5: Eu2+ with various S doping concentration Excitation and emission spectra.
It is shown that there is no remarkable change between the two excitation spectra; both two excitation bands have a broad band ranging from 300 to 500 nm and two peaks centered at 413 and 479 nm are present, respectively.
References [1] J.Y.
Zhang, X Zhang, et al.: Journal of Applied Physics Vol. 105 (2009), p013501-1 [9] B.
Online since: September 2016
Authors: Anthony J. Muscat, Pablo Mancheno-Posso, Yissel Contreras
In0.53Ga0.47As(100) epitaxial layers on InP substrates (1000 nm thick, undoped, IntelliEpi), were cut into 1 x 1.5 cm2 coupons and immersed for 1 min in 1:1:10000 v/v NH4OH:H2O2:H2O at room temperature, followed by a 1 min immersion in UPW.
For GaAs, the asymmetric methyl stretch is observed at 2960 cm-1, and the methylene stretches are found at 2918 cm-1 (asymmetric) and 2950 cm-1 (symmetric).
On In0.53Ga0.47As the asymmetric methyl stretch is observed at 2960 cm-1, and the methylene stretches are found at 2918 cm-1 (asymmetric) and 2950 cm-1 (symmetric), while on InSb, absorbance peaks at 2957 cm-1, 2925 cm-1, 2850 cm-1, and 2847 cm-1 are observed.
References [1] J. del Alamo.
Nature 479 (2011), p. 317
For GaAs, the asymmetric methyl stretch is observed at 2960 cm-1, and the methylene stretches are found at 2918 cm-1 (asymmetric) and 2950 cm-1 (symmetric).
On In0.53Ga0.47As the asymmetric methyl stretch is observed at 2960 cm-1, and the methylene stretches are found at 2918 cm-1 (asymmetric) and 2950 cm-1 (symmetric), while on InSb, absorbance peaks at 2957 cm-1, 2925 cm-1, 2850 cm-1, and 2847 cm-1 are observed.
References [1] J. del Alamo.
Nature 479 (2011), p. 317
Online since: November 2007
Authors: Iain R. Gibson, J.M.S. Skakle, D.J. Hadden, J. Whyte
Whyte
1,a, D.J.
Hadden 1,b , I.R.
Gibson 1,2,c and J.M.S.
Figure 1.
Krist. 219: 479-486
Hadden 1,b , I.R.
Gibson 1,2,c and J.M.S.
Figure 1.
Krist. 219: 479-486
Online since: November 2013
Authors: A.A. Arifin, N.A.N. Mohamed, A.K. Ariffin, S. Abdullah, A. Othman
The wall-thicknesses of 2.1 for pultrusion and 1.6 mm aluminum wrap 1 layered were examined at the material fiber type of E-glass reinforced polyester resin of square cross-section subjected to axial quasi-static loading.
Crushing during internal energy is one of the significant factors in their application in applied vehicle crush structures [1].
The tube profile for thin-walled aluminum tubes E-glass wrapped polyester reinforced composite was quite different from the data either quasi-static absorbed energy and initial peak load as well as mean load shown in Fig. 1 and Fig. 2.
Fig. 1.
Vol. 337 pp: 479-488
Crushing during internal energy is one of the significant factors in their application in applied vehicle crush structures [1].
The tube profile for thin-walled aluminum tubes E-glass wrapped polyester reinforced composite was quite different from the data either quasi-static absorbed energy and initial peak load as well as mean load shown in Fig. 1 and Fig. 2.
Fig. 1.
Vol. 337 pp: 479-488
Online since: March 2014
Authors: Nadjia Benachour, Mohamed Benguediab, Mustapha Benachour, Boumedienne Zeggai, Abdelkader Belmokhtar
Table 1.
Parameters of crack growth model Al-alloys DKtho n P q C 2024 T351 2.857 3.353 0.5 1 1.707´10-10 2219 T87 3.187 2.487 0.5 1 1.149´10-9 7075 T7351 3.297 2.529 0.5 1 6.964´10-10 7178 T7651 3.297 1.800 0.5 1 3.001´10-9 (5) Kr is the residual stress intensity factor due to overload, it is given by (equation 5) and Reff is the effective stress ratio
References [1] Jr J.C.
Mech., 5. (1973) 479-497
Mech. 5 (1973) 479-497
Parameters of crack growth model Al-alloys DKtho n P q C 2024 T351 2.857 3.353 0.5 1 1.707´10-10 2219 T87 3.187 2.487 0.5 1 1.149´10-9 7075 T7351 3.297 2.529 0.5 1 6.964´10-10 7178 T7651 3.297 1.800 0.5 1 3.001´10-9 (5) Kr is the residual stress intensity factor due to overload, it is given by (equation 5) and Reff is the effective stress ratio
References [1] Jr J.C.
Mech., 5. (1973) 479-497
Mech. 5 (1973) 479-497
Online since: September 2013
Authors: Jan Pošta, Jakub Dolejs, Lubomír Vítek
The radiator is shielded by depleted 238U (Fig. 1).
The coefficient of determination R2 reaches values from 0.951 to 1.000 (Table 1).
The equation (1) was used for calculation.
Table 2: Measurements on spruce samples Samples Cross section [mm] Frequency of pulses ρ gravimetric [kg/m3] ρ radiometry [kg/m3] 95% interval of reliability Difference of ρ [%] S4 119/120 4334,2 495,3 561,6 493,0 - 630,2 13,4 S7 118/141 4353,6 496,9 549,5 482,0 - 617,1 10,6 S7 141/118 4304,0 496,9 515,8 448,5 - 583,2 3,8 S12 118/156 4355,8 507,3 554,4 487,5 - 621,4 9,3 S12 156/118 4274,6 507,3 506,0 438,2 -573,8 -0,3 S6 119/175 4358,0 531,2 557,2 490,6 - 623,8 4,9 S6 175/119 4181,6 531,2 583,0 515,0 - 651,0 9,8 S16 120/194 4414,4 479,3 482,6 415,4 - 549,9 0,7 S16 194/120 4224,6 479,3 476,6 408,3 - 544,9 -0,6 S11 119/217 4385,0 527,2 541,2 473,3 - 609,1 2,7 S11 217/119 4152,4 527,2 537,9 470,0 - 605,7 2,0 S15 119/236 4420,6 486,9 500,6 431,2 - 570,0 2,8 S15 236/119 4203,2 486,9 443,1 371,8 - 514,3 -9,0 Acoustic tests Density is a parameter necessary to determine Edyn by acoustic methods.
References [1] J.
The coefficient of determination R2 reaches values from 0.951 to 1.000 (Table 1).
The equation (1) was used for calculation.
Table 2: Measurements on spruce samples Samples Cross section [mm] Frequency of pulses ρ gravimetric [kg/m3] ρ radiometry [kg/m3] 95% interval of reliability Difference of ρ [%] S4 119/120 4334,2 495,3 561,6 493,0 - 630,2 13,4 S7 118/141 4353,6 496,9 549,5 482,0 - 617,1 10,6 S7 141/118 4304,0 496,9 515,8 448,5 - 583,2 3,8 S12 118/156 4355,8 507,3 554,4 487,5 - 621,4 9,3 S12 156/118 4274,6 507,3 506,0 438,2 -573,8 -0,3 S6 119/175 4358,0 531,2 557,2 490,6 - 623,8 4,9 S6 175/119 4181,6 531,2 583,0 515,0 - 651,0 9,8 S16 120/194 4414,4 479,3 482,6 415,4 - 549,9 0,7 S16 194/120 4224,6 479,3 476,6 408,3 - 544,9 -0,6 S11 119/217 4385,0 527,2 541,2 473,3 - 609,1 2,7 S11 217/119 4152,4 527,2 537,9 470,0 - 605,7 2,0 S15 119/236 4420,6 486,9 500,6 431,2 - 570,0 2,8 S15 236/119 4203,2 486,9 443,1 371,8 - 514,3 -9,0 Acoustic tests Density is a parameter necessary to determine Edyn by acoustic methods.
References [1] J.
Online since: October 2018
Authors: Motohiro Tagaya, Shigeaki Abe, Takuya Kataoka
Here, the excitation wavelength was 464 nm and the integrated intensities of I0 and I1 were calculated at the wavelengths between 450−479 nm and that of I2 was at 479−750 nm.
Accordingly, the ηint value was calculated by Eq. (1).
Figure 1.
References [1] L.
Commun. 13 (2016) 1−5
Accordingly, the ηint value was calculated by Eq. (1).
Figure 1.
References [1] L.
Commun. 13 (2016) 1−5
Online since: October 2014
Authors: Florin Tudose Sandu-Ville
Also, the influence of changing the slope for the temperature gradient concerning the position of the primary crack under the contact surface in thermomechanical contact fatigue is of major importance [1].
Fig. 2 Temperature gradient according Jacq anomaly [6] Fig. 1 Classic gradient for temperature in a metal wall [6] Hence, below the surface, between very near levels, different thermal stresses are generated.
The thermal Jacq effect gives a strong support for the localization of the primary crack under the contact surface, for the thermomechanical contact fatigue [1].
References [1] F.
Balkan Journal of Tribology, 2005, BalkanTrib ’05 – 5th International Conference on Tribology, June 15-18, 2005, Kragujevac, Serbia and Montenegro, pp. 474-479
Fig. 2 Temperature gradient according Jacq anomaly [6] Fig. 1 Classic gradient for temperature in a metal wall [6] Hence, below the surface, between very near levels, different thermal stresses are generated.
The thermal Jacq effect gives a strong support for the localization of the primary crack under the contact surface, for the thermomechanical contact fatigue [1].
References [1] F.
Balkan Journal of Tribology, 2005, BalkanTrib ’05 – 5th International Conference on Tribology, June 15-18, 2005, Kragujevac, Serbia and Montenegro, pp. 474-479
Online since: August 2014
Authors: Hai Lin, Bao Liang Mu
Table 1.
Probability distribution for x and y y x 1 2 1 0.15 0.25 2 0.4 0.2 The mathematical expectation for y is computed as follows: Ey=1×(0.15+0.25)+2×(0.4+0.2)=1.6 And here are the conditional mathematical expectations for y: E(y|x=1)=1×0.15/0.4+2×0.25/0.4=1.625 E(y|x=2)=1×0.4/0.6+2×0.2/0.6=1.33 Conditional mathematical expectation also considers the relationship between random variables.
Figure 1 In Figure 1, the horizontal line represents time, and the vertical line represents the value.
And the accurate value for day 8 is 461, and the accurate value for day 9 is 479.
References [1] E.W.T.
Probability distribution for x and y y x 1 2 1 0.15 0.25 2 0.4 0.2 The mathematical expectation for y is computed as follows: Ey=1×(0.15+0.25)+2×(0.4+0.2)=1.6 And here are the conditional mathematical expectations for y: E(y|x=1)=1×0.15/0.4+2×0.25/0.4=1.625 E(y|x=2)=1×0.4/0.6+2×0.2/0.6=1.33 Conditional mathematical expectation also considers the relationship between random variables.
Figure 1 In Figure 1, the horizontal line represents time, and the vertical line represents the value.
And the accurate value for day 8 is 461, and the accurate value for day 9 is 479.
References [1] E.W.T.
Online since: February 2016
Authors: Elena N. Gryaznova, Ludmila N. Shiyan, Yuri A. Irtegov
Table 1.
The results are presented in the Fig. 1.
a b Fig. 1.
References [1] L.
Russian Journal of Physical Chemistry A. 87(2013) 479–484.
The results are presented in the Fig. 1.
a b Fig. 1.
References [1] L.
Russian Journal of Physical Chemistry A. 87(2013) 479–484.