A large amount of coal gangue from coal mining and processing is regarded as waste and usually stockpiled directly. In order to recycle the valuable elements from the coal gangue, an integrated process is proposed. Th...A large amount of coal gangue from coal mining and processing is regarded as waste and usually stockpiled directly. In order to recycle the valuable elements from the coal gangue, an integrated process is proposed. The process consists of three steps: 1concentrating alumina from the coal gangue via activation roasting followed by alkali leaching of Si O2 which produces alumina concentrate for alumina extraction by the Bayer process; 2) synthesizing tobermorite whiskers from the filtrated alkali liquo containing silicate via a hydrothermal method and reusing excess caustic liquor; and 3) enriching titanium component from the Baye process residue by sulfuric acid leaching. Alumina concentrate with 69.5% Al_2O_3 and mass ratio of alumina to silica(A/S) of 5.9pure 1.1 nm tobermorite whisker and TiO_2-rich material containing 33% TiO_2 are produced, respectively, with the optimal parameters Besides, the actual alumina digestion ratio of alumina concentrate reaches 80.4% at 270 oC for 40 min in the Bayer process.展开更多
As a systematic work, there are very close links between the various aspects of the English translation of Chinese modern and contemporary literary works, whether they are translated into the main body, translated con...As a systematic work, there are very close links between the various aspects of the English translation of Chinese modern and contemporary literary works, whether they are translated into the main body, translated content and other links, or a specific translation approach, are not segmentation. Many translators, sinologists and books, magazines and so on have played a very important role in the process of translating modern and contemporary literary works in China. However with English-Chinese “borrowism” compared with, English work that translates the Chinese present current literature work, no matter in quantity and quality, infi uence and other aspects that the work itself has appear the relative backwardness. In order to promote the modern and contemporary Chinese literary works in the world, it is necessary to analyze and study the English translation of Chinese modern and contemporary literary works and the research methods.展开更多
Recently, thick haze and poisonous smoke have cloaked the surrounding air in Malaysia due to the uncontrollable and unethical burning of nearby country. This devastating episode of open burning started in the year 199...Recently, thick haze and poisonous smoke have cloaked the surrounding air in Malaysia due to the uncontrollable and unethical burning of nearby country. This devastating episode of open burning started in the year 1997 in Indonesia which deeply affected most of the ASEAN （association of southeast asian nations） countries especially their neighbour Malaysia and Singapore. The PV （photovoltaic） technology as an alternative means of energy generation experiences such significant energy decrease based on this condition which is due to the shading of sunlight. The 6 h claims of good sunlight has become not more than 2 h and gets worst when the API （air pollution index） struck 200 levels which is at very unhealthy condition. This study embraces some findings from 1 kWp PV generator field data installed in Malaysia reflecting the daily energy decrease operated during this unhealthy weather condition. It is found that, such significant energy decrease with the value of 0.43 W power output per increment of one point API. This value shows such concrete proof of additional factors to be considered in PV modelling in line to support PV technology adaptation in the ASEAN region.展开更多
基金Projects(51234008,51174230)supported by the National Natural Science Foundation of ChinaProject(NCET-11-0515)supported by the Program for New Century Excellent Talents in University,ChinaProject supported by Co-Innovation Center for Clean and Efficient Utilization of Strategic Metal Mineral Resources,China
文摘A large amount of coal gangue from coal mining and processing is regarded as waste and usually stockpiled directly. In order to recycle the valuable elements from the coal gangue, an integrated process is proposed. The process consists of three steps: 1concentrating alumina from the coal gangue via activation roasting followed by alkali leaching of Si O2 which produces alumina concentrate for alumina extraction by the Bayer process; 2) synthesizing tobermorite whiskers from the filtrated alkali liquo containing silicate via a hydrothermal method and reusing excess caustic liquor; and 3) enriching titanium component from the Baye process residue by sulfuric acid leaching. Alumina concentrate with 69.5% Al_2O_3 and mass ratio of alumina to silica(A/S) of 5.9pure 1.1 nm tobermorite whisker and TiO_2-rich material containing 33% TiO_2 are produced, respectively, with the optimal parameters Besides, the actual alumina digestion ratio of alumina concentrate reaches 80.4% at 270 oC for 40 min in the Bayer process.
文摘As a systematic work, there are very close links between the various aspects of the English translation of Chinese modern and contemporary literary works, whether they are translated into the main body, translated content and other links, or a specific translation approach, are not segmentation. Many translators, sinologists and books, magazines and so on have played a very important role in the process of translating modern and contemporary literary works in China. However with English-Chinese “borrowism” compared with, English work that translates the Chinese present current literature work, no matter in quantity and quality, infi uence and other aspects that the work itself has appear the relative backwardness. In order to promote the modern and contemporary Chinese literary works in the world, it is necessary to analyze and study the English translation of Chinese modern and contemporary literary works and the research methods.
文摘Recently, thick haze and poisonous smoke have cloaked the surrounding air in Malaysia due to the uncontrollable and unethical burning of nearby country. This devastating episode of open burning started in the year 1997 in Indonesia which deeply affected most of the ASEAN （association of southeast asian nations） countries especially their neighbour Malaysia and Singapore. The PV （photovoltaic） technology as an alternative means of energy generation experiences such significant energy decrease based on this condition which is due to the shading of sunlight. The 6 h claims of good sunlight has become not more than 2 h and gets worst when the API （air pollution index） struck 200 levels which is at very unhealthy condition. This study embraces some findings from 1 kWp PV generator field data installed in Malaysia reflecting the daily energy decrease operated during this unhealthy weather condition. It is found that, such significant energy decrease with the value of 0.43 W power output per increment of one point API. This value shows such concrete proof of additional factors to be considered in PV modelling in line to support PV technology adaptation in the ASEAN region.
