This paper addresses the relationship between ontology and ethics, as outlined in Charles Taylor＇s essay ＂Ethics and Ontology,＂ problematizing it from a narrative ethics viewpoint. It attempts to overcome the ＂bin...This paper addresses the relationship between ontology and ethics, as outlined in Charles Taylor＇s essay ＂Ethics and Ontology,＂ problematizing it from a narrative ethics viewpoint. It attempts to overcome the ＂binary＂ dichotomy presented in Taylor＇s essay, insisting instead in favour of an approach that distances itself from both reductionist naturalism and ancient and medieval ontological models. The move towards narrative ethics is positioned in relation to an implicit ontology. Taylor recognizes that man＇s way of life ＂consists of ways of sense making;＂ this human trait thus being an ontological presupposition, or precomprehension. Here, I suggest that this pre-narrative quality is in fact an ex ante projection of the work of meaning-making, arising ex post and, crucially, not universally attainable. If it were, it would be an unwarranted ontologization of features of human moral experience. Organizing the relationship between ontology and ethics within the perspective of narrative ethics does not mean doing away with the ontological dimension. Indeed, as this paper seeks to demonstrate, the ontological background of narrative ethics may be traced from a phenomenology of fragility, exposure, and interdependence. The definition of man as a self-interpreting animal should therefore be delineated in the sense of an endeavour; in this way, the individual can build up his own mediated relation with meaning, and, as a result, the practice of self-narrative becomes available to all.展开更多
THE Double Ninth Festival falls on the ninth day of the ninth lunar month.Chinese ancients believed that nine was the largest number.According to the yin/yang dichotomy that forms the basis of the Chinese view of the ...THE Double Ninth Festival falls on the ninth day of the ninth lunar month.Chinese ancients believed that nine was the largest number.According to the yin/yang dichotomy that forms the basis of the Chinese view of the world,yin represents the elements of darkness and yang represents life and brightness.The number nine is regarded as yang.展开更多
We present a study on the retrieval sensitivity of the column-averaged dry-air mole fraction of CO2(XCO2) for the Chinese carbon dioxide observation satellite(TanSat) with a full physical forward model and the optimal...We present a study on the retrieval sensitivity of the column-averaged dry-air mole fraction of CO2(XCO2) for the Chinese carbon dioxide observation satellite(TanSat) with a full physical forward model and the optimal estimation technique. The forward model is based on the vector linearized discrete ordinate radiative transfer model(VLIDORT) and considers surface reflectance, gas absorption, and the scattering of air molecules, aerosol particles, and cloud particles. XCO2 retrieval errors from synthetic TanSat measurements show solar zenith angle(SZA), albedo dependence with values varying from 0.3 to 1 ppm for bright land surface in nadir mode and 2 to 8 ppm for dark surfaces like snow. The use of glint mode over dark oceans significantly improves the CO2 information retrieved. The aerosol type and profile are more important than the aerosol optical depth, and underestimation of aerosol plume height will introduce a bias of 1.5 ppm in XCO2. The systematic errors due to radiometric calibration are also estimated using a forward model simulation approach.展开更多
The study of formation and dissociation of CO 2 hydrate in porous media was characterized by magnetic resonance imaging (MRI) system in in situ conditions. This work simulated porous media by using glass beads of unif...The study of formation and dissociation of CO 2 hydrate in porous media was characterized by magnetic resonance imaging (MRI) system in in situ conditions. This work simulated porous media by using glass beads of uniform size. The growth and dissociation habit of CO2 hydrate was observed under different temperature and pressure conditions. The induction time and the hydrate saturation during the growth and dissociation process in different sizes of porous media were obtained by using the MRI signal intensity. The results indicate that hydrate growth rate and the induction time are affected by the size of porous media, pressure, and degree of supercooling. There are three hydrate growth stages, i.e., initial growth stage, rapid growth stage and steady stage. In this study,the CO2 hydrate forms preferentially at the surface of vessel and then gradually grows inward. The hydrate tends to cement the glass beads together and occupies the pore gradually. As the hydrate decomposes gradually, the dissociation rate increases to the maximum and then decreases to zero.展开更多
文摘This paper addresses the relationship between ontology and ethics, as outlined in Charles Taylor＇s essay ＂Ethics and Ontology,＂ problematizing it from a narrative ethics viewpoint. It attempts to overcome the ＂binary＂ dichotomy presented in Taylor＇s essay, insisting instead in favour of an approach that distances itself from both reductionist naturalism and ancient and medieval ontological models. The move towards narrative ethics is positioned in relation to an implicit ontology. Taylor recognizes that man＇s way of life ＂consists of ways of sense making;＂ this human trait thus being an ontological presupposition, or precomprehension. Here, I suggest that this pre-narrative quality is in fact an ex ante projection of the work of meaning-making, arising ex post and, crucially, not universally attainable. If it were, it would be an unwarranted ontologization of features of human moral experience. Organizing the relationship between ontology and ethics within the perspective of narrative ethics does not mean doing away with the ontological dimension. Indeed, as this paper seeks to demonstrate, the ontological background of narrative ethics may be traced from a phenomenology of fragility, exposure, and interdependence. The definition of man as a self-interpreting animal should therefore be delineated in the sense of an endeavour; in this way, the individual can build up his own mediated relation with meaning, and, as a result, the practice of self-narrative becomes available to all.
文摘THE Double Ninth Festival falls on the ninth day of the ninth lunar month.Chinese ancients believed that nine was the largest number.According to the yin/yang dichotomy that forms the basis of the Chinese view of the world,yin represents the elements of darkness and yang represents life and brightness.The number nine is regarded as yang.
基金supported by the Strategic Priority Research Program- Climate Change: Carbon Budget and Relevant Issues (Grant No. XDA05040200)the National High-tech Research and Development Program of China (Grant No. 2011AA12A104)
文摘We present a study on the retrieval sensitivity of the column-averaged dry-air mole fraction of CO2(XCO2) for the Chinese carbon dioxide observation satellite(TanSat) with a full physical forward model and the optimal estimation technique. The forward model is based on the vector linearized discrete ordinate radiative transfer model(VLIDORT) and considers surface reflectance, gas absorption, and the scattering of air molecules, aerosol particles, and cloud particles. XCO2 retrieval errors from synthetic TanSat measurements show solar zenith angle(SZA), albedo dependence with values varying from 0.3 to 1 ppm for bright land surface in nadir mode and 2 to 8 ppm for dark surfaces like snow. The use of glint mode over dark oceans significantly improves the CO2 information retrieved. The aerosol type and profile are more important than the aerosol optical depth, and underestimation of aerosol plume height will introduce a bias of 1.5 ppm in XCO2. The systematic errors due to radiometric calibration are also estimated using a forward model simulation approach.
基金supported by the State Key Development Program for Basic Research of China (Grant No. 2009CB219507)National Natural Science Foundation of China (Grant Nos. 51006017 & 50736001)National Science and Technology Major Project (Grant No. 2011ZX05026-004)
文摘The study of formation and dissociation of CO 2 hydrate in porous media was characterized by magnetic resonance imaging (MRI) system in in situ conditions. This work simulated porous media by using glass beads of uniform size. The growth and dissociation habit of CO2 hydrate was observed under different temperature and pressure conditions. The induction time and the hydrate saturation during the growth and dissociation process in different sizes of porous media were obtained by using the MRI signal intensity. The results indicate that hydrate growth rate and the induction time are affected by the size of porous media, pressure, and degree of supercooling. There are three hydrate growth stages, i.e., initial growth stage, rapid growth stage and steady stage. In this study,the CO2 hydrate forms preferentially at the surface of vessel and then gradually grows inward. The hydrate tends to cement the glass beads together and occupies the pore gradually. As the hydrate decomposes gradually, the dissociation rate increases to the maximum and then decreases to zero.
