Báo cáo vật lý: "PREPARATION OF SELENIUM-DOPED ACTIVATED CARBON AND ITS UTILIZATION FOR IMPROVING THE QUALITY OF USED COCONUT OIL" pps

... The MAC (2.5% (w/w) Se /activated carbon) was prepared and can be applied to improve the quality of used coconut oil. Treatment of used coconut oil with MAC was effective in regenerating the ... between the oil and blonde was performed by centrifugation at 2000 rpm for 15 min. The fresh coconut oil of 2.28 l was obtained. 2.5 Treatment of Used Coconut Oil with MAC Used coconut ... AC. The pore size determination showed a distribution of 63.88% mesopore and 36.12% micropore. Several key quality indicators of the oil were determined for the used coconut oil before and...

Báo cáo vật lý: "Preparation of ZrO2/Al2O3-pillared Saponite and Its Spectroscopic Investigation on NOX Adsorption" pptx

... band in the region around 3446 cm–1 indicates the adsorbed water (H2O) in the pores of the solid. The shift of the band at ~ 660–690 cm–1 indicates the interaction between ZrO2 and the ... adsorption bands corresponding to the saponite structure are identified in the region of 1012.69 cm–1 and 661 cm–1 as the vibrations of the tetrahedral and octahedral sheet. The band at 462 ... bulk-ZrO2. The blue shift of the edge wavelength of Zr/APS is estimated to be in the range of 215–250 nm, suggesting nano size zirconia formation in the APS matrix. The character of spectra...

Báo cáo khoa học nông nghiệp " POST HARVEST MANAGEMENT AND NEW APPROACH FOR SUPPLY CHAIN SYSTEM OF CABBAGE AND WATER MELON " doc

... - Recognize their dependence on each other and willing to work together to define common objectives, share risks and benefits and make the relationship work. - Proper handling and temperature ... requirement and consumer demand for higher food quality and safety: - Supply chain should be adequately simple, flexible, more direct, straightforward and well coordinated to meet the value and competitiveness ... marketing) often results in reduced food losses, improved overall quality and food safety, and higher profits for growers and marketers. Objective: - To find out proper post-harvest management and...

Báo cáo vật lý: "Decolourisation of Reactive Orange 16 by Activated Carbon and Copper Oxide Catalysts Supported by Activated Carbon" ppsx

... portion of the H2O2 is used to oxidise the AC, there are fewer hydroxyl radicals available to oxidise the dye. Second, the formation of a surface oxygen group because of the reaction between the ... compared to the modified and the heat-treated modified AC. Decolourisation of RO16 by the Cu catalyst increases in the presence of H2O2 and UV-light. The decolourisation efficiency of the catalyst ... pattern of modified ACs and Cu-AC. Table 2 shows the surface area and porosity analysis of the modified AC and the Cu catalysts. Even though the surface area decreased as the concentration of...

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

... breaking of some of the porous wall of activated carbon, thus blocking the pores. It was noticed that D-A method was usually used to evaluate the micropores of activated carbon. The D-A equation ... activated carbon with wide size range of micropores. 3.3 Surface Morphology of Activated Carbon Scanning electron macrographs for the external morphology of the activated carbon at the ... prepare and study the effect of different pyrolysis temperatures on the development of the porosity of activated carbon derived from oil palm shells activated with ZnCl2. The activated carbon...

Báo cáo vật lý: "Analysis of Trace Elements in Teeth by ICP-MS: Implications for Caries" pptx

... determine how the major components of the amalgam (Cu, Zn and Hg) diffuse into the structures of the teeth. Curson and Crocker20 determined the concentrations of Zn and Pb in the pulp of the teeth. ... Elements in the Pulps of Healthy and Carious Teeth The pulp contains the nerves and blood vessels of the teeth. The blood vessels feed the tooth and keep it alive and healthy. The nerve endings ... in the intracellular fluid of cells is K; along with Na, K is important for the maintenance of electrical potential in the nervous system and, therefore, for the efficient functioning of nerves...

Báo cáo vật lý: "Influence of the Silica-to-Surfactant Ratio and the pH of Synthesis on the Characteristics of Mesoporous SBA-15" ppt

... with increasing amounts of HCl or the presence of large amounts of C1– ions. Therefore, for the partial dehydration of PEO units, the volume of the hydrophilic part of the micelle decreases. ... greatly influence the characteristics of the resulting materials as they generally control the formation of micelles during the synthesis.8 Hence, many aspects of the synthesis processes are ... supports.8 Because of the variety of practical uses, the fabrication of the desired morphologies of mesoporous silica is as important as the control of its internal structure and porosity. SBA-15...

Báo cáo vật lý: "Flexural and Morphological Properties of Epoxy/Glass Fibre/SilaneTreated Organo-montmorillonite Composites Nor Hamidah Mohd" potx

... to enhance the interaction between the clay and the polymer.9 The surface of the MMT is commonly modified with a cation exchange technique to expand the basal spacing and make the layered ... agent can further expand the d-spacing of the OMMT, which could favour the intercalation and exfoliation of silane-treated OMMT in the E matrix. It is also believe that the GF and silane-treated ... in the flexural modulus and strength of the E/GF composites with the addition of silane-treated OMMT. According to Lin et al.,5 the clays were dispersed between both the bundles of GF and...

Báo cáo vật lý: "Performance of Carbide Cutting Tool when Machining Cast Iron FC 250 in Dry Condition and Using Cutting Fluid" ppt

... by the cutting edge. In addition, the effects of other milling parameters were studied; cutting speed (m/min), axial depth of cut (mm) and feed rate (mm/tooth). Results indicate failure of the ... kali ganda berbanding dengan tidak menggunakan Prestasi Mata Alat Karbida 78 4. Barbezat, G. (2005). Advanced thermal spray technology and coating for lightweight engine blocks for the automotive ... Abstract: The performance of carbide cutting tool in end milling cast iron FC 250 in dry conditions and when using the cutting fluid has been carried out with emphasis on mechanisms of wear experienced...

Báo cáo vật lý: "Selective Oxygenation and Plant-Growth Regulatory Activity of Sesquiterpene Lactones" pot

... one considers the combined benefits of economics, selectivity and safety, UHP emerges as one of the best sources of oxygen atoms for a variety of organic oxygenation reactions. The compounds ... 5 (24%) and 6 (29%) that were identified by comparison with the mp, IR and NMR of the authentic samples. Compound 9 showed IR bands at 1780 cm–1 due to the presence of δ-lactone, bands at ... 157oC) and 6 (mp 144oC) were identified as isozaluzanin-C, telekin, and isotelekin. The IR bands [in chloroform (CHCl3)] of compound 3 were obtained at 3440, 1775, 1670, 1640 and 890 cm–1 and...

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