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Online since: December 2010
Authors: Yan Zhou Sun, Ya Bing Dang
Atmospheric pressure cold plasmas have received increased attention recently because of several emerging applications such as in material processing, aerodynamics (drag reduction, shock wave mitigation) [2, 3], bio-medicine, and radar communications (absorption and reflection of microwaves).
Fig. 3 Temperature distribution.Numerical simulation of plasma jet The calculation results of the plasma jet along the jet centerline are compared with calculating data in paper [8], shown in Fig. 4.
(a) (b) Fig. 4 a and b are velocity and temperature distribution along the jet centerline respectively It can be seen from Fig. 4 that the simulation results by D2Q9 model agree with the calculating data and the distribution trend of the velocity and the temperature distribution along the jet centerline are almost as same as in paper [8], respectively.
Online since: January 2015
Authors: Qing Ye, Zhi Dan Fu, Shui Yuan Cheng, Dao Wang
Samples Surface Area (m2/g) Crystall Size (nm) Temperature of conversion Ag a Ag2O b T50 T100 MnO2 90.7 - - 175 250 0.1Ag/MnO2-Q 91.4 - - 140 170 3Ag/MnO2-Q 88.4 - - 130 160 0.1Ag/MnO2-H 73.5 - - 160 220 3Ag/MnO2-H 58.8 8.5 12 150 200 a The data were estimated sccording to the Scherrer equation using the FWHM of the (111) line for Ag b The data were estimated sccording to the Scherrer equation using the FWHM of the (200) line for Ag2O Summary (1) The manganese oxide (MnO2) sample was synthesized by the reduction of KMnO4 by MnSO4 under acidic conditions.
Online since: June 2014
Authors: Jitti Mungkalasiri, Laurent Bedel, F. Emieux, Jeanne Dore, Francois N.R. Renaud, Francis Maury
The Ag content being close to the detection limit it is given as relative content deduced by SIMS (a) while XPS data are reported for Cu (b).
Conclusions The greater efficiency of Ag is demonstrated by the fact that Ag-TiO2 nanocomposite coatings become bactericidal, i.e. a reduction of approximately 7 log CFU (colony forming units) for Ag content close to only 1 at. % while a comparable efficiency requires about 3.5 at. %. of Cu.
Squares and triangles in (a) are SIMS and EDS data measured on 20 and 400 nm thick films, respectively.
Online since: February 2015
Authors: Ainuddin Ainun Rahmahwati, Ili Liyana Khairunnisa Kamardin
Values of lattice parameters from the X-ray diffraction data can be manipulated to get values of strain along the c-axis (εzz) by using the following Eq 2 : Eq. 2 where c is the lattice parameter of the strained ZnO films calculated from X-ray diffraction data and co (5.207) is the unstrained lattice parameter of ZnO.
The reduction of in the length and diameter of the ZnO nanostructure was due to dissolution of ZnO to form Zn2+ ions, followed by subsequent redeposition of Zn2+ ions as ZnO upon extended temperature HWT exposure.
Online since: October 2014
Authors: Marian Flimel
Obtaining the data on the apartment and the analysis of ambient noise, I.
Table 1: Determining partial indexes of VAP by legislation of the Slovak Republic Indicator Value Legislative permissible value given in : Determine the partial index VAP - Ix A1 L Aeq, 2m – equivalent pressure level off traffic noise two meters in front of the facade [dB] Local Ordinance Ministry of Health of the Slovak Republic 549/2007 IA1 = LAeq,2m,a : L Aeq, 2m,d A2 L Aeq, 2m - equivalent pressure level from other noise sources two meters in front of the facade [dB] 549/2007 IA2 = LAeq,2m,a : L Aeq, 2m,d B1 Rw´ - apparent sound reduction index of building construction [dB] Standard - STN 73 0532 IB1 = Rw,d´ : Rw,a´ B2 Ln,w - weighted normalized impact sound pressure level of floor structure [dB] STN 73 0532 IB2 = Ln,w,a : Ln,w,d C T - reverberation time of room [s] STN 730527 Ic = T opt,a : Td D L Aeq,i - equivalent pressure level in the interior from exterior noise sources [dB] 549/2007 ID = LAeq,i,a : LAeq,i,d E L Amax,i - maximum noise level in the interior
Such a significance is possible to confirm by following data: · Each residential area – flat, makes an individual living space for society of people and is characterized by location (urban area), location in multiple dwelling house and its dispositional layout.
Online since: March 2017
Authors: Sergey V. Stepanov, Yurii V. Funtikov, Leonid Yu. Dubov, Yurii V. Shtotsky
This, of course, leads to a reduction in the acquisition rate of experimental data down to ~30 events per second.
However, the estimation of the concentration of the vacancy-type radiation defects based on the positron lifetime spectroscopy data (see below) gives a much lower value, ~1017 cm−3.
Online since: February 2013
Authors: Jun Wei Yu, Bin Wang, Yong Zhang
PHEVs can get about 50% reduction in fuel costs compared with the traditional HEVs.
The models of engine and motor are designed according to their test data.
Engine power, fuel consumption and emissions at specified speed and load can be calculated via data interpolation.
Online since: March 2013
Authors: Jayabharathi Jayaraman, Jayamoorthy Karunamoorthy
The reflectance data of ZnO, Ag-ZnO and Cu-ZnO nanoparticles are presented in terms of kubelka constant.
Impedance data (Table.2) are analysed in terms of Niquist plots which provide the ohmic and charge transfer resistances of the semiconductors.
Table 2 Binding constants (K) of benzimidazole derivative with ZnO, Ag-ZnO and Cu-ZnO nanoparticles Nanoparticles K n 100r2 ZnO 4.01 x 109 0.93 98.1 Ag-ZnO 3.89 x 108 0.99 99.6 Cu-ZnO 3.85 x 109 0.92 98.3 From the onset oxidation potential (Eox) and the onset reduction potential (Ered) of the derivative, HOMO and LUMO energy levels have been calculated [8] (Fig.4).The electron injection would be thermodynamically allowed from the excited singlet of the derivative to the conduction band of ZnO.
Online since: August 2015
Authors: S. Senthilraja, K.C.K. Vijayakumar, R. Gangadevi
The NI 6211 data acquisition system with personal computer is used to record the real time temperatures.
Data reduction The heat transfer coefficient and the Nusselt number of the test fluids are calculated using different formulae presented in this paper.
Online since: April 2015
Authors: Svetlana Vladimirovna Sibileva, Andrey Leonidovich Botanogov, Nikolay Vadimovich Trofimov, Ludmila Viktorovna Zaharova
The contact angle (CA) of distilled water was measured at room temperature using an optical device OCA 15 Pro (Data Physics).
According to the data obtained the phosphating and anodizing methods significantly decreases the values of CA up to 2 ± 1°.
According to studies anodizing allows to obtain more resistant to moisture adhesive joints compared with chemical treatment: the maximum reduction in strength values was 25.3% and 39.3% of the initial strength, respectively.
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