Combined Influence of Off-diagonal System Tensors and Potential Valley Returning of Optimal Path

The two-dimensional barrier passage is studied in the framework of Langevin statistical reactive dynamics.The optimal incident angle for a particle diffusing in the dissipative non-orthogonal environment with various strengthsof coupling between the two degrees of freedom is systematically calculated.The optimal diffusion path of the particlein a non-Ohmic damping system is revealed to have a probability to return to the potential valley under the combinedinfluence of the off-diagonal system tensors.

能量经济性也是绿色化学的重要理念

从化学反应热力学与动力学角度出发,基于化学学科的能量思维提出“能量经济性”原则,建立绿色化学的统一认知。该原则沟通“化学平衡思想”与“反应路径优化思想”等学科思想,应用“宏观辨识与微观探析”学科思维,联络绿色化学12原则,与“原子经济性”原则一起构成绿色化学新认知。通过“能量经济性”原则,可将绿色化学思想潜移默化地传递给学生,对学生深入认识化学学科与现代社会发展的关系及可持续发展策略具有重要价值。