The paper inducts the concept of nominal linear-stiffness by means of the comparison of the rigid and semi-rigid connection steel frames under the horizontal load and put forward that it should adopt the nominal line-stiffness to consider the influence of the initial stiffness to the horizontal displacement of the semi-rigid connec.

Since Obstfeld and Rogoff set up an open-economy dynamic general equilibrium model based on nominal rigidities and monopolistic competition in 1995,there has been an outpouring of research based on the framework which is called "new open economy macroeconomics".

The model and its result also show that there is a great nominal rigidity in China s economy from which supply shock is not main factors resulting in inflation movement.

Bionic design of column structure of machine tool for high specific stiffness;

The application environment for remote sensor in space is described and the importance of selected material and its effect on design of the Three Mirror Anastigmat(TMA)remote sensor are introduced,the new materials SiC and SiC/Al with high-thermal conductivity and high specific stiffness are selected to design for a lighting TMA remote sensor.

Introducing the specific stiffness structural effectiveness, the simulation results of optimization show that the seat topology optimization structure based on density method can meet the naval gun\'s engineering needs, which can provide references for lightweight design of naval gun.

Analysis of the effect of stiffness ratio on dynamic characteristics of arch transfer floor;

It is found that the formation of the active earth pressure relies mainly on both the stiffness ratio k of the media and the homo.

The distribution of stress and displacement near the transition section are discussed for different stiffness ratios.