... Trace Elements in Teeth: Implication for Caries 2 teeth has been suggested as being indicative of Pb toxicity. 5,9 Here, we have investigated the importance of the location of trace elements ... carious teeth than in those with healthy teeth. Keywords: ICP-MS, teeth, trace elements, caries, teeth pulps 1. INTRODUCTION Biomonitoring of trace...
Ngày tải lên: 07/08/2014, 14:20
... available in the literature. 10,11 It is reported that the ratio of the silica source to the surfactant ratio and the pH of the synthesis gel can greatly influence the characteristics of the resulting ... amounts of C1 – ions. Therefore, for the partial dehydration of PEO units, the volume of the hydrophilic part of the micelle decreases....
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Báo cáo vật lý: "Decolourisation of Reactive Orange 16 by Activated Carbon and Copper Oxide Catalysts Supported by Activated Carbon" ppsx
... structure of RO16 dye. Journal of Physical Science, Vol. 21(2), 29–40, 2010 29 Decolourisation of Reactive Orange 16 by Activated Carbon and Copper Oxide Catalysts Supported by Activated ... Decolourisation of Reactive Orange 16 (RO16) dye by HNO 3 -modified activated carbons (ACs) and a copper oxide catalyst supported by mo...
Ngày tải lên: 07/08/2014, 14:20
Báo cáo vật lý: "Performance of Carbide Cutting Tool when Machining Cast Iron FC 250 in Dry Condition and Using Cutting Fluid" ppt
... Pemotong (Performance of Carbide Cutting Tool when Machining Cast Iron FC 250 in Dry Condition and Using Cutting Fluid) Jaharah A. Ghani * , Mohd Noor Azmi Mohd Rodzi, Noordin Ibrahim dan Che ... above. In dry machining, wear mechanisms were caused by adhesion and micro-attrition at low combination of machining parameters. While at high comb...
Ngày tải lên: 07/08/2014, 14:20
Báo cáo vật lý: "Preparation of ZrO2/Al2O3-pillared Saponite and Its Spectroscopic Investigation on NOX Adsorption" pptx
... 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 ... ZrO 2 /Al 2 O 3 -pillared Saponite and Its Spectroscopic Investigation on NO X Adsorption Is Fatimah 1 *, Karna Wijaya 2 and Narsito 2 1 Chemistry Department, Islamic...
Ngày tải lên: 07/08/2014, 14:20
Báo cáo vật lý: "Evaluation of In Vitro Antioxidant Activity of 5H-dibenz[b,f]azepine and Its Analogues" ppt
... damage Evaluation of In Vitro Antioxidant Activity 90 antioxidant activity of 5H-dibenz[b,f]azepine and its derivatives on h oxidation and lipid peroxidation acti uman LDL vity in the liposome ... lipid p activity of the 5H-dibenz[b,f]azepine and its derivatives in the liposo induced by FeCl 3 plus AA, is represented in Figure 2. Compound showed pro...
Ngày tải lên: 07/08/2014, 14:20
Báo cáo vật lý: "EFFECTS OF Si, Al2O3 AND SiC SUBSTRATES ON THE CHARACTERISTICS OF DBRS STRUCTURE FOR GaN BASED LASER" ppsx
... of Physical Science, Vol. 17(2), 151–159, 2006 151 EFFECTS OF Si, Al 2 O 3 AND SiC SUBSTRATES ON THE CHARACTERISTICS OF DBRS STRUCTURE FOR GaN BASED LASER N.M. Ahmed*, M.R. Hashim and ... number of layers. However, MOVPE process parameters for the GaN on alternative substrates need further optimization to reach the quality of GaN laye...
Ngày tải lên: 07/08/2014, 14:20
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 ... 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 t...
Ngày tải lên: 07/08/2014, 14:20
Báo cáo vật lý: "FABRICATION OF LOW COST OF ALUMINIUM MATRIX COMPOSITE REINFORCED WITH SILICA SAND" potx
... hardness of aluminium composites decreases. Also, it is noted that the hardness of aluminium matrix composites reinforced with silica sand is higher than those reinforced with commercial silica. ... the higher sintered density accomplished in aluminium matrix composite reinforced with silica sand. Fabrication of Low Cost of Aluminium Matrix Co...
Ngày tải lên: 07/08/2014, 14:20
Báo cáo vật lý: "EFFECT OF FIELD STRENGTH IN THE VELOCITY ANISOTROPY OF FERROFLUIDS" pptx
... All the observations are interpreted in terms of grain-grain interaction and grain -field interaction that exist in the system. The field strength is found to enhance the structural formation in ... depending on the evolution of the aggregates with increasing strength of the external magnetic field. 26, 27 Under the effect of an external magnetic f...
Ngày tải lên: 07/08/2014, 14:20
Báo cáo vật lý: "LOSS OF STORAGE AREAS DUE TO FUTURE URBANIZATION AT UPPER RAMBAI RIVER AND ITS HYDROLOGICAL IMPACT ON RAMBAI VALLEY, PENANG, PENINSULAR MALAYSIA" pps
... Journal of Physical Science, Vol. 18(2), 59–79, 2007 59 LOSS OF STORAGE AREAS DUE TO FUTURE URBANIZATION AT UPPER RAMBAI RIVER AND ITS HYDROLOGICAL IMPACT ON RAMBAI VALLEY, PENANG, PENINSULAR ... implied that the increase and propagation of peak stages downstream is not proportional (rational) to the percentage of urbanization and los...
Ngày tải lên: 07/08/2014, 14:20
Báo cáo vật lý: "Immobilization of Dithizone onto Chitin Isolated from Prawn Seawater Shells (P. merguensis) and its Preliminary Study for the Adsorption of Cd(II) Ion" pdf
... onto the surface of chitin, the intensity of dithizone bands is considerably low as compared to those of chitin. The XRD also suggests that immobilization of dithizone onto the surface of chitin ... The Effect of adsorbent mass on the adsorption of Cd(II) ion by ithizone-immobilized chitin. g 10 àg/ml of Cd(II) ion o a used, resulting in...
Ngày tải lên: 07/08/2014, 14:20
Báo cáo vật lý: "Characterization of Fe-Cr-Al2O3 Composites Fabricated by Powder Metallurgy Method with Varying Weight " ppsx
... Fe-Cr-Al 2 O 3 have been fabricated by powder metallurgy route. The varying weight percentage of alumina particles studied have an effect on the final physical properties of the composites namely ... and characterizing composites of iron- chromium alloy reinforced with 5–25 wt. % of alumina particles fabricated using powder metallurgy method. The diffraction...
Ngày tải lên: 07/08/2014, 14:20
Báo cáo vật lý: "Entrapment of Avidin in Sol-Gel Derived Silica Glasses" pot
... Changes in relative fluorescence intensity for proteins as a function of temperature. (○) Avidin in solution; (●) avidin- biotin in solution; (□) avidin in monolith; (■) avidin- biotin in monolith. ... 1: Infrared spectra of a) avidin; b) TMOS monolith; c) avidin in TMOS monolith; and d) avidin- biotin in TMOS monolith (amide region expanded, shown on right)....
Ngày tải lên: 07/08/2014, 14:20
Báo cáo vật lý: "Using of HPLC Analysis for Evaluation of Residual Monomer Content in Denture Base Material and Their Effect on Mechanical Properties" pptx
... 1.28 Journal of Physical Science, Vol. 19(2), 127–135, 2008 127 Using of HPLC Analysis for Evaluation of Residual Monomer Content in Denture Base Material and Their Effect on Mechanical Properties ... properties of denture base material related to the effect of level of residual monomer, and concluded that the percentage of high...
Ngày tải lên: 07/08/2014, 14:20