báo cáo Vật lý
... lượng sinh vật khô và năng lượng sinh vật ướt tùy theo độ ẩm của nguyên liệu gốc. Ngoài ra chúng ta còn có một phương pháp nữa là sản xuất nhiên liệu sinh vật. * Năng lượng sinh vật khô Đốt ... này xét dạng năng lượng mà một vật có được đo nó đang chuyển động. Dạng năng lượng ấy gọi là động năng. Khi một vật có động năng thì vật đó có thể tác dụng lực lên vật khác và lực nà...
Ngày tải lên: 23/06/2013, 01:27
... 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....
Ngày tải lên: 07/08/2014, 14:20
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: "Flexural and Morphological Properties of Epoxy/Glass Fibre/SilaneTreated Organo-montmorillonite Composites Nor Hamidah Mohd" potx
... mechanical properties and fracture behaviour of nanocomposites and carbon fibre composites (CFRPs) that contained organoclay in the E matrix. Bozkurt et al. 4 reported that the flexural properties of ... morphological properties of epoxy/glass fiber composites. Polym. Int., 56(4), 512–517. 8. Chow, W. S. (2007). Water absorption of epoxy/glass fiber/organo- montm...
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: "Conductive Polymer Based on Polyaniline-Eggshell Powder (PANI-ESP) Composites" ppsx
... 3.5 Electrical Conductivity The polymer backbone in the PANI-ESP conducting polymers consists of a π-conjugated chain. The overlap of π-electrons is called conjugation because it leads ... the conductive polymer based on PANI was concluded to possess a FCC structure. The powders exhibited peaks at 2 angles, around 200 and 450, which indicates that the conductive polymer co...
Ngày tải lên: 07/08/2014, 14:20
Báo cáo vật lý: "Selective Oxygenation and Plant-Growth Regulatory Activity of Sesquiterpene Lactones" pot
... structure of compound 7. Journal of Physical Science, Vol. 21(2), 99–107, 2010 99 Selective Oxygenation and Plant-Growth Regulatory Activity of Sesquiterpene Lactones Sabir Hussain* and ... Lett., 39(31), 5655– 5658. Oxygenation and Plant-Growth Regulatory Activity 102 showed IR bands (CHCl 3 ) at 3500, 1760, 1669, 1455, 920, and 862 cm –1 a...
Ngày tải lên: 07/08/2014, 14:20
Báo cáo vật lý: "Electrochemical Studies of Mild Steel Corrosion Inhibition in Aqueous Solution by Uncaria gambir Extract" doc
... Electrochemical 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 extracts of ... Electrochemical Studies of Mild Steel Corrosion Inhibition 6 Figure 1: The relation between percentage of inhibition with concentrati...
Ngày tải lên: 07/08/2014, 14:20
Báo cáo vật lý: "Protonation and Complexation Approaches for Production of Protic Eutectic Ionic Liquids" ppsx
... processes for commercial and inexpensive ILs and can therefore be used for industrial application. Production of Protic Eutectic Ionic Liquids 16 reserved for ionic melts with melting points ... modification of cellulose in ionic liquids. J. Mol. Liq., 142, 1–5. Journal of Physical Science, Vol. 21(1), 15–28, 2010 15 Protonation and Complexation...
Ngày tải lên: 07/08/2014, 14:20
Báo cáo vật lý: "The Hidden Property of Arrhenius-type Relationship: Viscosity as a Function of Temperature" doc
... persamaan untuk menggantikan hubungan jenis Arrhenius telah diterbitkan. Ini adalah kerana pemalar tenaga keaktifan daripada persamaan itu bukan dalam bentuk asas. Persamaan baru ini mengekalkan ... sifat asal tenaga keaktifan dan kelikatan pada suhu tidak terhingga, dan ia merangkumi pemalar baru, iaitu kelikatan pada suhu sifar. Nisbah kelikatan pada suhu sifar dan kelikatan pada suhu...
Ngày tải lên: 07/08/2014, 14:20
Báo cáo vật lý: "The Kinetics and Mechanism of the Core-shell Styrene-butyl Acrylate Polymerisation" pdf
... experimentally and estimates of the emulsion polymerisation mechanism of synthesis for the obtained core and shell. The determination of the polymerisation reaction kinetics of the styrene core and butyl ... is the polymerisation rate of the styrene core, and k is the rate reaction constant in the formation of the styrene core. 3.4 Mechanism...
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: "Emulsion Polymers of Core-Shell Styrene-Butyl Acrylate: The Effect of Feeding and Aging Time on Particle Size Distribution" pdf
... as all particles fall within the 200–300 nm range. Figure 4: Plot of conversion and particle size as a function of aging time. Table 2: Effect of aging time on the conversion of core-shell ... core-shell to feeding time) . The results of the conversion and particle size to the ratio of the feeding time are given in Table 1....
Ngày tải lên: 07/08/2014, 14:20
Báo cáo vật lý: "LDPE-Isophthalic Acid-Modified Egg Shell Powder Composites (LDPE/ESPI)" pdf
... LDPE/modified egg shell powder composites (LDPE/ESP I ), as compared to LDPE/unmodified egg shell powder composites (LDPE/ESP). Both the introduction of interfacial adhesion to composites and ... Preparation of Egg Shell Powder The egg shells were washed, dried and ground to a powder using the blender. A sieve was used to obtain an average particle size of 63 à...
Ngày tải lên: 07/08/2014, 14:20