After replacing the gray cast iron by rare earth cast iron,the comparative test carried out at Xiangtan Iron and Steel Complex shows that the service life of ingot moulds increases by 43%,the consumption of ingot moulds decreases to 4.

It was concluded that the elastic modulus G′, loss modulus G″ and dynamic viscosity η~ of PLA and its copolymers increases with the increasing of the molecular weight.

As an application,the scaling exponents of elastic modulus and loss modulus are also obtained.

The effects of the mass concentration and the salinity and the shear angular frequency of the polymer solution on its loss modulus and storage modulus are studied.

In accordance with the special weather in Nanchang,this paper puts forward energy simulation of a resident building by using DeST-h.

Presents some foreign building energy simulation software and building energy code compliance software.

Take a residential building in Nanjing as an example, using energy simulation software DeST to give dynamic simulation for the cooling load of residential buildings and solar radiation intensity, and elicit the laws of hourly changing for the cooling load of residential buildings and solar radiation intensity in the area of climate conditions, meanwhile, use charts to make its analysis of cha

The spectrums are transformed to the temperature spectrums of loss-modulus, and are compared to the temperature spectrum of loss-modulus in various frequents obtained by internal friction experiment.

The loss models are divided into two types: one is based on physics, the other is based on mathematics.

When the system running steadily,the system use EOC tactic to acquire the best system efficiency,the induction motor loss model use the off-line method to calculate lower limit value of exciting current,then using algorithm of golden-section to search opti.