Emily Dickenson’s poems have long enjoyed considerable acclaims from critics and common readers for her delicate and profound writing of life and death,love,nature,etc.Her short poem“My Life had stood—a Loaded Gun...Emily Dickenson’s poems have long enjoyed considerable acclaims from critics and common readers for her delicate and profound writing of life and death,love,nature,etc.Her short poem“My Life had stood—a Loaded Gun”is one receiving relatively few academic discussion.Among the rather few existent studies,many discuss Dickenson’s feminist ideas,religious bewilderment,literary creation views or even personal feeling in this poem.This article,instead,gives an interpretation of this poem from an ecocritical perspective.It points out that Emily Dickenson in this poem expresses her condemnation on human’s cruelty and indiffer?ence to nature.After a thorough interpretation of Dickenson’s reflection on human-nature relationship in this poem,the article fur?ther explores Dickenson’s attitudes toward nature through her personal writing background and clues in her other works to support this interpretation.展开更多
A path following controller is developed for underactuated ships with only surge force and yaw moment available to follow a predefined path.The proposed controller is based on nonswitch analytic model predictive contr...A path following controller is developed for underactuated ships with only surge force and yaw moment available to follow a predefined path.The proposed controller is based on nonswitch analytic model predictive control.It is shown that the optimal control law for a nonlinear path following system with ill-defined relative degree is continuous and nonsingular.The problem of ill-defined relative degree is solved.The path-following ability of the nonlinear system is guaranteed.Numerical simulations are provided to demonstrate the effectiveness of the proposed control law.展开更多
文摘Emily Dickenson’s poems have long enjoyed considerable acclaims from critics and common readers for her delicate and profound writing of life and death,love,nature,etc.Her short poem“My Life had stood—a Loaded Gun”is one receiving relatively few academic discussion.Among the rather few existent studies,many discuss Dickenson’s feminist ideas,religious bewilderment,literary creation views or even personal feeling in this poem.This article,instead,gives an interpretation of this poem from an ecocritical perspective.It points out that Emily Dickenson in this poem expresses her condemnation on human’s cruelty and indiffer?ence to nature.After a thorough interpretation of Dickenson’s reflection on human-nature relationship in this poem,the article fur?ther explores Dickenson’s attitudes toward nature through her personal writing background and clues in her other works to support this interpretation.
基金supported by the National Natural Science Foundation of China(No.50779033)the National High Technology Research and Development Program(863 Program)of China(No.2007AA11Z250)
文摘A path following controller is developed for underactuated ships with only surge force and yaw moment available to follow a predefined path.The proposed controller is based on nonswitch analytic model predictive control.It is shown that the optimal control law for a nonlinear path following system with ill-defined relative degree is continuous and nonsingular.The problem of ill-defined relative degree is solved.The path-following ability of the nonlinear system is guaranteed.Numerical simulations are provided to demonstrate the effectiveness of the proposed control law.
