Further study板块作为单元内容的延伸,是培养学生综合能力的关键载体。但在实践中,该板块常因课时限制、资源不足等原因被弱化处理,其语言学习价值和育人价值未能充分发挥。教学时可将社会情感学习理论融入Further study板块教学全过程...Further study板块作为单元内容的延伸,是培养学生综合能力的关键载体。但在实践中,该板块常因课时限制、资源不足等原因被弱化处理,其语言学习价值和育人价值未能充分发挥。教学时可将社会情感学习理论融入Further study板块教学全过程,通过构建“情感联结—文化浸润—价值内化—迁移创新”的四阶段教学模式,激活该板块的育人价值,培养人际关系技能、社会意识,深化自我认知,强化自我管理,有效提升学生的文化理解力、共情能力与文化自信。展开更多
In this paper, a nonlinear solution is first presented for a circular sandwich plate with the flexure rigidity of the face layers taken into account. In solving the nonlinear bending equations, a modified power series...In this paper, a nonlinear solution is first presented for a circular sandwich plate with the flexure rigidity of the face layers taken into account. In solving the nonlinear bending equations, a modified power series method is proposed. The uniformly distributed loading and the clamped but sliding boundary condition are also assumed. Then our results are compared with those from Liu Ren-huai and Shi-Yun-fang[15]. The present solution can be used ax a more accurate basis in engineering applications.展开更多
An extended ocean-atmosphere coupled characteristic system including thermodynamic physical processes in ocean mixed layer is formulated in order to describe SST explicitly and remove possible limitation of ocean-atmo...An extended ocean-atmosphere coupled characteristic system including thermodynamic physical processes in ocean mixed layer is formulated in order to describe SST explicitly and remove possible limitation of ocean-atmosphere coupling assumption in hydrodynamic ENSO models. It is revealed that there is a kind of abrupt nonlinear characteristic behaviour, which relates to rapid onset and intermittency of El Nino events, on the second order slow time scale due to the nonlinear interaction between a linear unstable low-frequency primary eigen component of ocean-atmosphere coupled Kelvin wave and its higher order harmonic components under a strong ocean-atmosphere coupling background. And, on the other hand, there is a kind of finite amplitude nonlinear characteristic behaviour on the second order slow time scale due to the nonlinear interaction between the linear unstable primary eigen component and its higher order harmonic components under a weak ocean-atmosphere coupling background in this model system.展开更多
Thirteen years ago, liver alveolar echinococcosis (LAE) in the Northwest of China was reported by the first author. In 1993, 70 cases of LAE were diagnosed at Lanzhou Hydatid Research Laboratory of Lanzhou Medical Col...Thirteen years ago, liver alveolar echinococcosis (LAE) in the Northwest of China was reported by the first author. In 1993, 70 cases of LAE were diagnosed at Lanzhou Hydatid Research Laboratory of Lanzhou Medical College. In order to sum up the present and previous experiences, clinical and pathological analyses of the 70 cases were made and the factors related to the prognosis of the patients were discussed.展开更多
The application ot the sulfinatodehalogenation reaction system for the perfluoroalkylation of electron-rich aromatics is further studied.It was shown that perfluoroalkyl iodides reacted with polyhydric phenols,N,N-dia...The application ot the sulfinatodehalogenation reaction system for the perfluoroalkylation of electron-rich aromatics is further studied.It was shown that perfluoroalkyl iodides reacted with polyhydric phenols,N,N-dialkylanilines,2,5-dimethylpyrrole,N-methylpyrrole initiated by Na_2S_2O_4- NaHCO_3 gave the corresponding perfluoroalkylated products in moderate to good yields.展开更多
Reaction of tetrakis(p-allyloxyphenyl)porphyrin and perfluoroalkanesulfonyl bromides gives tetrakis(p-polyfluoroalkoxylphenyl)substituted porphyrins.The yields are over 90%.The synthesis of the metal ion complexes of ...Reaction of tetrakis(p-allyloxyphenyl)porphyrin and perfluoroalkanesulfonyl bromides gives tetrakis(p-polyfluoroalkoxylphenyl)substituted porphyrins.The yields are over 90%.The synthesis of the metal ion complexes of these F-containing porphyrins is also reported.Preliminary results on the study of the catalytic activity of the manganese(Ⅲ)complexes of various fluorinated porphyrins on oxidation of cyclohexene indicate that the introduction of R_F group into porphyrin contributes to the stability of the catalysts.展开更多
基金Project Supported by the Science Fund of the Chinese Academy of Sciences
文摘In this paper, a nonlinear solution is first presented for a circular sandwich plate with the flexure rigidity of the face layers taken into account. In solving the nonlinear bending equations, a modified power series method is proposed. The uniformly distributed loading and the clamped but sliding boundary condition are also assumed. Then our results are compared with those from Liu Ren-huai and Shi-Yun-fang[15]. The present solution can be used ax a more accurate basis in engineering applications.
文摘An extended ocean-atmosphere coupled characteristic system including thermodynamic physical processes in ocean mixed layer is formulated in order to describe SST explicitly and remove possible limitation of ocean-atmosphere coupling assumption in hydrodynamic ENSO models. It is revealed that there is a kind of abrupt nonlinear characteristic behaviour, which relates to rapid onset and intermittency of El Nino events, on the second order slow time scale due to the nonlinear interaction between a linear unstable low-frequency primary eigen component of ocean-atmosphere coupled Kelvin wave and its higher order harmonic components under a strong ocean-atmosphere coupling background. And, on the other hand, there is a kind of finite amplitude nonlinear characteristic behaviour on the second order slow time scale due to the nonlinear interaction between the linear unstable primary eigen component and its higher order harmonic components under a weak ocean-atmosphere coupling background in this model system.
文摘Thirteen years ago, liver alveolar echinococcosis (LAE) in the Northwest of China was reported by the first author. In 1993, 70 cases of LAE were diagnosed at Lanzhou Hydatid Research Laboratory of Lanzhou Medical College. In order to sum up the present and previous experiences, clinical and pathological analyses of the 70 cases were made and the factors related to the prognosis of the patients were discussed.
基金the National Natural Science Foundation of China.Part ⅩⅩⅢ in this series,see Huang,W.-Y.Zhuang,J.-L.,Chinese J.Chem.,9,270 (1991).
文摘The application ot the sulfinatodehalogenation reaction system for the perfluoroalkylation of electron-rich aromatics is further studied.It was shown that perfluoroalkyl iodides reacted with polyhydric phenols,N,N-dialkylanilines,2,5-dimethylpyrrole,N-methylpyrrole initiated by Na_2S_2O_4- NaHCO_3 gave the corresponding perfluoroalkylated products in moderate to good yields.
文摘Reaction of tetrakis(p-allyloxyphenyl)porphyrin and perfluoroalkanesulfonyl bromides gives tetrakis(p-polyfluoroalkoxylphenyl)substituted porphyrins.The yields are over 90%.The synthesis of the metal ion complexes of these F-containing porphyrins is also reported.Preliminary results on the study of the catalytic activity of the manganese(Ⅲ)complexes of various fluorinated porphyrins on oxidation of cyclohexene indicate that the introduction of R_F group into porphyrin contributes to the stability of the catalysts.
