Báo cáo vật lý: "Textural Characteristics of Activated Carbons Prepared from Oil Palm Shells Activated with ZnCl2 and Pyrolysis Under Nitrogen and Carbon Dioxide" doc

... Journal of Physical Science, Vol. 19(2), 93–104, 2008 93 Textural Characteristics of Activated Carbons Prepared from Oil Palm Shells Activated with ZnCl 2 and Pyrolysis Under Nitrogen and Carbon ... textural characteristics of activated carbon prepared from oil palm shells activated with zinc chloride (ZnCl 2 ) and pyrolysis un...

Ngày tải lên: 07/08/2014, 14:20

... consist of the determination of Tafel curves. Tafel plots of mild steel in pH 5 aqueous solutions with and without inhibitors for various concentrations were summarised in Figure 3 and Table ... Studies of Mild Steel Corrosion Inhibition 8 Table 4: Corrosion parameters for mild steel in aqueous solution with absence and presence of various pH of 150 ppm ethyl acetate...

Ngày tải lên: 07/08/2014, 14:20

... world crude oil demand. 3. UTILISATION OF OIL PALM WASTES The use of oil palm biomass other than the palm oil leads to increased efficiency as more energy is obtained from oil palm plantations. ... that of palm oil, the energy obtainable from the EFB product stream amounts to roughly 0.2 kg of oil equivalent per kg of palm oil. Based on Mal...

Ngày tải lên: 07/08/2014, 14:20

... composed of ferum Journal of Physical Science, Vol. 18(1), 75–85, 2007 75 WEAR MECHANISM OF TiN, TiAlN AND TiCN COATED DRILLS DURING DRILLING OF CARBON STEEL R.J. Talib*, M.R.M. Toff and ... milling machine at spindle rotation of 1,600 rpm and feed rate of 20 mm/min. A carbon steel plate with a thickness of 30 mm was used as a work piece and the depth o...

Ngày tải lên: 07/08/2014, 14:20

... under different irradiation times 5, 10 and 15 min and with a fixed power density of 12 W/cm 2 . It can be seen from the SEM micrographs that the surface morphology and pore structure of ... etching time of 5 min, the etched surface onset of pore structure with small pits were irregular in shape and size, shown in Figure 4(a). For the etching time of 10 min, th...

Ngày tải lên: 07/08/2014, 14:20

... properties of semiconductors requires a detailed investigation of the structure of the frame which remains after etching, of the initial bulk material and the state of its surface. The properties of ... Dependence of Raman Spectra 52 Figure 2: Schematic diagram of LIE process. 3. RESULTS AND DISCUSSION 3.1. Raman Spectrum of Porous GaP The Raman spectrum...

Ngày tải lên: 07/08/2014, 14:20

... cyclohexane and with aniline, using the sound velocity data. The present work deals with the measurement of U, ρ and η, and computation of related parameters at 303 K in the ternary mixture of aniline+ethanol+cyclohexane ... MHz frequency with an accuracy of ± 0.1 ms –1 . The ρ and η are measured using a pycknometer and an Ostwald’s viscometer, respectively with a...

Ngày tải lên: 07/08/2014, 14:20

... Estimator of parameter , −rd γ 1 ˆ () − ′ ′′ = rrr rr ′ γ T TZZT TZY is the PCRE of parameter , is the remaining eigenvectors of γ r T ′ ZZ after having deleted of the columns of and satisfying ... advantages of the ORRE and the Shrunken Estimator. The Class Estimator combined the techniques of the ORRE and the PCRE while the Class Estimator combined the techniqu...

Ngày tải lên: 07/08/2014, 14:20

... in a given mass of sample depends on the size distribution of the components. Thus, for a binary mixture of spherical particles of components A and B with proportions of P A and P B , respectively, ... mixing behavior in terms of the rate of mixing (through estimation of the time required for the mixing index to increase from zero to a certain value) and with...

Ngày tải lên: 07/08/2014, 14:20

... the presence of magnetite (Fig. 1). Among these bands, 1021 cm –1 was the strongest and could be considered as lepidocrocite’s major band 6 and will be used as the reference band. The mangrove ... the lepidocrocite, followed by the formation of a new phase. The formation of ferric-tannates were evident with the presence of peaks at around 1443, 1354 and 1250 cm –1 . The...

Ngày tải lên: 07/08/2014, 14:20