pallidicornis belong to dawn-dusk active type midges, C.

Through analyzing on characteristics of the compound material shell, proposed the activity block molding and inside slide block demoulding mechanism, the mold structure was simple and clever, not only reduced the mold cost and the development cycle, more over the mold life was improved.

We get the structure information of the executable models from the activity models and the binding information from the rule models and the domain information from the data models.

According to the broad use of activity models in C~3I system,the difficulty of generating the simulation models,and the similarly of the two kinds of models,we try to describe an approach to generating the simulation models indirectly,i.

A three-dimension activity model is proposed which is composed of three aspects: resource, process and technology.

For a plastic clamping frame used in a fire extinguisher, a mould was designed based on the opening feature of the part and with use of forced spring demoulding instead of conventional lateral core-pulling mechanism for the ejection of movable cores and plastic component.

Research on Requirement Engineering Structure of Large-Scale Events;

Frequent large-scale events impose heavy pressure on urban traffic management.

This paper puts foreword impact factors about traffic mode choice under large-scale events,and the author mainly analyzed that the events holding spot,traffic management measure and the scale of the event bring the impact to traffic mode split.

Through a comparison of characteristics of traffic impact evaluation between large special events and large commercial developments, and based on an analysis of influencing factors of traffic management for large events, this paper formulates a travel forecasting method for both one-time (nonrecurring) and recurring special events.

Large special events bring about great impact to urban traffic, how to ensure the safety, speed and unblock of traffic evacuation and reduce the impact on normal traffic during large special events is a difficult problem to traffic manager.

Focusing on private car travelers from other cities dur-ing large special events,this paper conducts a survey and research on park-and-ride selection behaviors.