The Igbo artists of all generations, from the pre-colonial to the post-colonial period, and from her traditional to contemporary art practices, have demonstrated the ability to express the material, as well as spiritu...The Igbo artists of all generations, from the pre-colonial to the post-colonial period, and from her traditional to contemporary art practices, have demonstrated the ability to express the material, as well as spiritual world of the lgbo cultural society. The fear of the unknown, uncertainties of the forest, river, mountain, seas, oceans, lightening, thunder, and the changing weather, brings her artists in constant contact with their spirituality. Over time, these artists have demonstrated their inherent ability to perceive, through their various art practices, the unseen, speak the unspoken, revere and share in the silent salient world of their ancestors, as well as preserve it for posterity. This paper presents an insight into the Igbo cultural society with reference to her indigenous and contemporary art practices. It identifies the trajectories of her art and cultural developments toward contemporary and global acceptance, and in addition attempts to identify her visual creative frontiers.展开更多
With the application of modem information technology in education, particularly after multimedia network technology enters teaching field of education, the content of education, the content and the means of education ...With the application of modem information technology in education, particularly after multimedia network technology enters teaching field of education, the content of education, the content and the means of education has undergone great changes.In order to develop complex English talent, we designed a teaching model of English reading as a means of multimedia assisted teaching through collaborative, exploratory, autonomous interactive teaching, which can fully exercise and develop students＇ language skills, improving English quality of teaching.It has changed the traditional teaching model which is constrined bye teacher-centered, textbook-centered, classroom-centered. Multimedia Assisted English reading can give students the greatest degree of autonomy, and pay more attention to students＇ learning ability to play the main role in the cognitive, reflectting the idea of quality education, meetting the requirements of the times.展开更多
Graphene oxides(GOs) were synthesized via modified Hummers method, and were applied as adsorbents to remove radionuclides from large volumes of aqueous solutions. The single and competitive sorption of four radionucli...Graphene oxides(GOs) were synthesized via modified Hummers method, and were applied as adsorbents to remove radionuclides from large volumes of aqueous solutions. The single and competitive sorption of four radionuclides(i.e., U(VI), 152+154Eu(III), 85+89Sr(II) and 134Cs(I)) on the GOs from aqueous solutions were investigated as a function of p H, ionic strength and radionuclide initial concentrations using batch technique. The results showed that the GOs had much higher sorption capacity than many other contemporary materials, for the preconcentration of radionuclides from large volumes of aqueous solutions. The sorption of radionuclides on GOs obeyed the Langmuir model, and was mainly attributed to surface complexation via the coordination of radionuclides with the oxygen-containing functional groups on GO surfaces. The competitive sorption results indicated that the selectivity sorption capacities were U(VI)>Eu(III)>Sr(II)>Cs(I). The GOs are suitable materials for the efficient removal and preconcentration of radionuclides from aqueous solutions in nuclear waste management and environmental pollution cleanup.展开更多
文摘The Igbo artists of all generations, from the pre-colonial to the post-colonial period, and from her traditional to contemporary art practices, have demonstrated the ability to express the material, as well as spiritual world of the lgbo cultural society. The fear of the unknown, uncertainties of the forest, river, mountain, seas, oceans, lightening, thunder, and the changing weather, brings her artists in constant contact with their spirituality. Over time, these artists have demonstrated their inherent ability to perceive, through their various art practices, the unseen, speak the unspoken, revere and share in the silent salient world of their ancestors, as well as preserve it for posterity. This paper presents an insight into the Igbo cultural society with reference to her indigenous and contemporary art practices. It identifies the trajectories of her art and cultural developments toward contemporary and global acceptance, and in addition attempts to identify her visual creative frontiers.
文摘With the application of modem information technology in education, particularly after multimedia network technology enters teaching field of education, the content of education, the content and the means of education has undergone great changes.In order to develop complex English talent, we designed a teaching model of English reading as a means of multimedia assisted teaching through collaborative, exploratory, autonomous interactive teaching, which can fully exercise and develop students＇ language skills, improving English quality of teaching.It has changed the traditional teaching model which is constrined bye teacher-centered, textbook-centered, classroom-centered. Multimedia Assisted English reading can give students the greatest degree of autonomy, and pay more attention to students＇ learning ability to play the main role in the cognitive, reflectting the idea of quality education, meetting the requirements of the times.
基金supported by the National Natural Science Foundation of China(21225730,91326202)the Fundamental Research Funds for the Central Universities+2 种基金the Jiangsu Provincial Key Laboratory of Radiation Medicine,Protectionthe Priority Academic Program Development of Jiangsu Higher Education InstitutionsMCTL Visiting Fellowship Program from Key Laboratory of Marine Chemistry Theory and Technology(Ocean University of China),Ministry of Education
文摘Graphene oxides(GOs) were synthesized via modified Hummers method, and were applied as adsorbents to remove radionuclides from large volumes of aqueous solutions. The single and competitive sorption of four radionuclides(i.e., U(VI), 152+154Eu(III), 85+89Sr(II) and 134Cs(I)) on the GOs from aqueous solutions were investigated as a function of p H, ionic strength and radionuclide initial concentrations using batch technique. The results showed that the GOs had much higher sorption capacity than many other contemporary materials, for the preconcentration of radionuclides from large volumes of aqueous solutions. The sorption of radionuclides on GOs obeyed the Langmuir model, and was mainly attributed to surface complexation via the coordination of radionuclides with the oxygen-containing functional groups on GO surfaces. The competitive sorption results indicated that the selectivity sorption capacities were U(VI)>Eu(III)>Sr(II)>Cs(I). The GOs are suitable materials for the efficient removal and preconcentration of radionuclides from aqueous solutions in nuclear waste management and environmental pollution cleanup.
