The Experts below are selected from a list of 15516 Experts worldwide ranked by ideXlab platform
Masahiko Kokita - One of the best experts on this subject based on the ideXlab platform.
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influence of Sulphur Content and molten steel flow on entrapment of bubbles to solid liquid interface
Isij International, 2006Co-Authors: Takashi Miyake, Masafumi Morishita, Hitoshi Nakata, Masahiko KokitaAbstract:The sliver defects which occur easily on ultra low carbon steel sheet are the most harmful defects, especially to automobile outer panel products. There may be many causes of the sliver defects such as nonmetallic inclusions, bubbles, surface cracks and inner cracks. However, crack formation is not a serious problem in continuously cast ultra low carbon steel because of its good ductility at high temperatures. Therefore, it is important to reduce the amount of nonmetallic inclusions and bubbles just below the slab surface. Electro-Magnetic Stirring in the mold (M-EMS) is an effective tool to remove such bubbles and reduce the amount of the sliver defects, although the effects of M-EMS on the reduction in sliver defects are influenced by the chemical composition of steel, especially by the Sulphur Content. The slabs cast at No.4CC-1 st strand in Kakogawa Works reveal rather a high Content of bubbles when the Sulphur Content is higher and M-EMS is not applied. In this study, the reason why sliver defects caused by bubbles are more likely to occur on steel of higher Sulphur Content is discussed based on the interaction between advanced solid/liquid interface and bubbles. The forces acting on the bubbles are theoretically described as a function of bubble radius, velocity and interfacial tension gradient of liquid steel in front of a solid/liquid interface.
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Influence of Sulphur Content and Molten Steel Flow on Entrapment of Bubbles to Solid/Liquid Interface
ISIJ International, 2006Co-Authors: Takashi Miyake, Masafumi Morishita, Hitoshi Nakata, Masahiko KokitaAbstract:The sliver defects which occur easily on ultra low carbon steel sheet are the most harmful defects, especially to automobile outer panel products. There may be many causes of the sliver defects such as nonmetallic inclusions, bubbles, surface cracks and inner cracks. However, crack formation is not a serious problem in continuously cast ultra low carbon steel because of its good ductility at high temperatures. Therefore, it is important to reduce the amount of nonmetallic inclusions and bubbles just below the slab surface. Electro-Magnetic Stirring in the mold (M-EMS) is an effective tool to remove such bubbles and reduce the amount of the sliver defects, although the effects of M-EMS on the reduction in sliver defects are influenced by the chemical composition of steel, especially by the Sulphur Content. The slabs cast at No.4CC-1 st strand in Kakogawa Works reveal rather a high Content of bubbles when the Sulphur Content is higher and M-EMS is not applied. In this study, the reason why sliver defects caused by bubbles are more likely to occur on steel of higher Sulphur Content is discussed based on the interaction between advanced solid/liquid interface and bubbles. The forces acting on the bubbles are theoretically described as a function of bubble radius, velocity and interfacial tension gradient of liquid steel in front of a solid/liquid interface.
Li Jian-feng - One of the best experts on this subject based on the ideXlab platform.
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Application of High Sulphur Content Petroleum Coke Burned in Circulating Fluidized Bed Boiler
Boiler Technology, 2005Co-Authors: Li Jian-fengAbstract:High Sulphur Content petroleum coke is the coproduct of Medium East petroleum oil chemical engineering process. Its application is one of the key questions. The update application of High Sulphur Content petroleum coke as the fuel of Circulating Fluidized Bed Boiler is introduced in detail. The authers believe that it is one of the best choice for the application of High Sulphur Content petroleum coke.
Takashi Miyake - One of the best experts on this subject based on the ideXlab platform.
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influence of Sulphur Content and molten steel flow on entrapment of bubbles to solid liquid interface
Isij International, 2006Co-Authors: Takashi Miyake, Masafumi Morishita, Hitoshi Nakata, Masahiko KokitaAbstract:The sliver defects which occur easily on ultra low carbon steel sheet are the most harmful defects, especially to automobile outer panel products. There may be many causes of the sliver defects such as nonmetallic inclusions, bubbles, surface cracks and inner cracks. However, crack formation is not a serious problem in continuously cast ultra low carbon steel because of its good ductility at high temperatures. Therefore, it is important to reduce the amount of nonmetallic inclusions and bubbles just below the slab surface. Electro-Magnetic Stirring in the mold (M-EMS) is an effective tool to remove such bubbles and reduce the amount of the sliver defects, although the effects of M-EMS on the reduction in sliver defects are influenced by the chemical composition of steel, especially by the Sulphur Content. The slabs cast at No.4CC-1 st strand in Kakogawa Works reveal rather a high Content of bubbles when the Sulphur Content is higher and M-EMS is not applied. In this study, the reason why sliver defects caused by bubbles are more likely to occur on steel of higher Sulphur Content is discussed based on the interaction between advanced solid/liquid interface and bubbles. The forces acting on the bubbles are theoretically described as a function of bubble radius, velocity and interfacial tension gradient of liquid steel in front of a solid/liquid interface.
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Influence of Sulphur Content and Molten Steel Flow on Entrapment of Bubbles to Solid/Liquid Interface
ISIJ International, 2006Co-Authors: Takashi Miyake, Masafumi Morishita, Hitoshi Nakata, Masahiko KokitaAbstract:The sliver defects which occur easily on ultra low carbon steel sheet are the most harmful defects, especially to automobile outer panel products. There may be many causes of the sliver defects such as nonmetallic inclusions, bubbles, surface cracks and inner cracks. However, crack formation is not a serious problem in continuously cast ultra low carbon steel because of its good ductility at high temperatures. Therefore, it is important to reduce the amount of nonmetallic inclusions and bubbles just below the slab surface. Electro-Magnetic Stirring in the mold (M-EMS) is an effective tool to remove such bubbles and reduce the amount of the sliver defects, although the effects of M-EMS on the reduction in sliver defects are influenced by the chemical composition of steel, especially by the Sulphur Content. The slabs cast at No.4CC-1 st strand in Kakogawa Works reveal rather a high Content of bubbles when the Sulphur Content is higher and M-EMS is not applied. In this study, the reason why sliver defects caused by bubbles are more likely to occur on steel of higher Sulphur Content is discussed based on the interaction between advanced solid/liquid interface and bubbles. The forces acting on the bubbles are theoretically described as a function of bubble radius, velocity and interfacial tension gradient of liquid steel in front of a solid/liquid interface.
Abdulhafiz A Elzidany - One of the best experts on this subject based on the ideXlab platform.
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effect of rhizobium inoculation organic and chemical fertilizers on proximate composition in vitro protein digestibility tannin and Sulphur Content of faba beans
Food Chemistry, 1997Co-Authors: Elsiddig A E Elsheikh, Abdulhafiz A ElzidanyAbstract:Abstract A field experiment was carried out to investigate the effect of Rhizobium inoculation, Sulphur, nitrogen and chicken manure on proximate analysis, in vitro protein digestibility (IVPD) tannin and Sulphur Content of faba beans. The results showed that Rhizobium inoculation, Sulphur, nitrogen and chicken manure treatments significantly ( P ≤ 0.05) increased protein, IVPD and tannin Content. Ash, moisture, fat and crude fibre Content varied in their response to different fertilizers. The inoculation results were as good as the addition of 40 kg N ha −1 and the efficiency of inoculation can be improved by the addition of fertilizers and/or amendments. Fertilization of faba beans with nitrogen, Sulphur or chicken manure not only increased yield, but also improved seed nutritional value. Chicken manure is a promising fertilizer, not only because it increases yield but because it has a significant effect in improving seed protein and IVPD. Sulphur treatments significantly ( P ≤ 0.05) increased the protein IVPD, tannin and Sulphur Content in seeds.
Helena Wachowska - One of the best experts on this subject based on the ideXlab platform.
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x ray photoelectron spectroscopy study of oxidized coals with different Sulphur Content
Fuel Processing Technology, 2002Co-Authors: Teresa Grzybek, Robert Pietrzak, Helena WachowskaAbstract:The aim of the study reported was to determine the effect of oxidation on the surface composition of coal as studied by X-ray photoelectron spectroscopy (XPS) method. Five coals characterized by a different degree of coalification and different amounts of Sulphur were subject to oxidation with peroxyacetic acid (PAA). The process of oxidation was carried out for coal samples demineralised by the Radmacher method. Carbon, oxygen, Sulphur and nitrogen peaks were registered and analysed. The effect of oxidation depended on coal rank. In case of S 2p, three or four peaks were found for the oxidized samples, corresponding to tiophene, sulphoxides (Ph 2 -SO type), sulphonic acids and in some cases, more oxidized forms of Sulphur, possibly inorganic sulphates. The surface Sulphur Content increased upon oxidation. A possible reason could be the mobility of the S-containing species.
