Báo cáo vật lý: "A Perspective of Oil Palm and Its Wastes" doc

... A Perspective of Oil Palm and Its Waste 74 Fresh fruit bunches (FFB)Sterilisation and stripping Digestion, clarification and pressing Palm oil Empty fruit bunches (EFB) Fresh fruits Palm ... discharge of the effluents.27 The total A Perspective of Oil Palm and Its Waste 72 providing competitive prices on oil palm, the liberalisation of export duties and the encouragement of counter-trades ... 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....

Báo cáo vật lý: " WEAR MECHANISM OF TiN, TiAlN AND TiCN COATED DRILLS DURING DRILLING OF CARBON STEEL" pptx

... 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 ... piece as a result of broken cutting lip and land, and blunting-off chisel wedge. 6. ACKNOWLEDGEMENTS The authors are grateful to the Government of Malaysia for the funding of this research. ... which have low boiling temperatures such as Mn and P might have depleted away and could not be detected by spot EDX analysis. Boiling temperature of Mn and P is about 1246°C and 44.1°C, respectively....

Báo cáo vật lý: "Mechanical Strength of Trass as Supplementary Cementing Material" docx

... Netherland. 4. Bao-min, W. & Li-jiu, W. (2004). Development of studies and applications of activation of fly ash. Proceedings of the International Workshop on Sustainable Development and ... gained by mechanical and chemical activation treatment. 2. EXPERIMENTAL Chemical compositions and mineralogy of 65 samples of trass from various deposits in Java Island, Indonesia were ... total of 15. Cubes were cured for 7 days in moist cabinet with relative humidity of 50% and temperature of 50oC. After 7 days, the cubes were then moved to a moist cabinet of 23oC and kept...

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

... countries of palm oil in the world are Malaysia and Indonesia. In Malaysia, oil palm shells containing high carbonaceous materials are generated in large quantity as a major by-product of the oil palm ... diagram of the set-up for the pyrolysis of oil palm shell. 2.2 Material The raw material for the preparation of activated carbon was the oil palm shells collected from an oil palm mill ... Malaysia. The oil palm shells as received were washed with water to reduce oily impurities and dried in the oven at 110oC. The dried oil palm shells were ground in a blender and sieved to...

Báo cáo vật lý: "Electrochemical Studies of Mild Steel Corrosion Inhibition in Aqueous Solution by Uncaria gambir Extract" doc

... all of the samples were immersed for 60 min over a frequency range of 100 kHz–1 Hz with a signal amplitude perturbation of 5 mV and a scan rate of 1 mVs–1. Next, it was fitted with sets of ... in fruits and plants such as tea leaves, wine and potatoes.5 Interestingly, catechin exhibits an anti-oxidative activity that stops oxidation and corrosion, the deterioration process and discoloration.6 ... the colour changes of our electrolyte were observed and showed a yellowish colour of ferrous or ferric hydroxide at the concentration of 0 ppm and 10 ppm. The colour changes of dark blue magnetite...

Báo cáo vật lý: "MORPHOLOGY STUDIES OF POROUS GaP, SYNTHESIZED BY LASER-INDUCED ETCHING" pdf

... possibility for obtaining a direct band gap material (2.78 eV) in the form of nanometer size crystalline GaP. Its band gap falls in the green and UV wavelength region and, therefore, is a promising ... irradiation times 5, 10 and 15 min and with a fixed power density of 12 W/cm2. It can be seen from the SEM micrographs that the surface morphology and pore structure of the etched GaP samples ... studies of surface morphology of the reconstructed surface etched by laser-induced etching and the etching rate parameters have been investigated. The surface structure, pits diameter and distribution...

Báo cáo vật lý: "TEMPERATURE DEPENDENCE OF RAMAN SPECTRA OF POROUS GAP" docx

... 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 ... fabrication of high-quality quantum wire structures. The softening and broadening of the optical phonon line in the Raman spectrum also explains the reduction of the coherence length of phonons. ... Temperature 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 of porous GaP sample...

Báo cáo vật lý: "ULTRASONIC STUDY OF THE SELF–ASSOCIATION OF ANILINE IN ETHANOL-CYCLOHEXANE MIXTURES" pptx

... components of the system. Amalendu Pal et al.5 have made an attempt to study the speed of sound and isentropic compressibilities of mixtures containing polyethers and ethyl acetate at 298.15 K and ... independent of temperature for all liquids, ∑=iieffmxM where, x is the mole fraction and m is the molecular weight of ith component and AE stands for excess property of any given ... existing in the mixtures of ethanol with 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...

Báo cáo vật lý: "AN OVERVIEW OF BIASED ESTIMATOR" pptx

... Estimator of parameter , −rdγ1ˆ()−′′′=rrr rr′γT TZZT TZY is the PCRE of parameter , is the remaining eigenvectors of γrT′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 techniques of the Liu Estimator and ... Estimator of parameter , γ1ˆ()−′′′=rrr rr′γT TZZT TZY is the PCRE of parameter , is the remaining eigenvectors of γrT′ZZ after having deleted of the columns of and satisfying...

Báo cáo vật lý: "Mixing Behavior of Binary Polymer Particles in Bubbling Fluidized Bed" doc

... number of particles 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 PA ... and PB, respectively, the number of particles of A or B per unit mass of component A or B, respectively is given by Equation (4). B⎤⎥⎦ Mass of particles in Number of particles Mass of ... describes the degree of mixing of the particle at particular time. This method enables the assessment of the overall mixing behavior in terms of the rate of mixing (through estimation of the time required...

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