Our country is facing the fourth revolution of retail business,this essay stated from five angles:economic developing competition standard,change of consumption requirement,competition,management and the life circle regulation of retail state.

Financing tactics analysis of coal enterprise based on lifecycle theory;

Research on the lifecycle and the emphasis of supporting policy of the current development of nanotechnology in China;

The study on lifecycle and its service system for enterprise alliance;

The Segmentation of Product Life Circle of Furniture and Design Strategy;

corporation during life circle , has different actions.

An enterprise competitive advantage should be divided into four different steps of life circle.

Modeling of recycling and its circular economy based on battery life cycle;

Assessment of life cycle energy consumption and emissions for several kinds of feedstock based biodiesel;

Life Cycle Emission Assessment for Oxygenated Gasoline;

A new way of allocation in process of high level synthesis──Minimum lifetime edge algorithm;

Maximizing lifetime model of circular sensor networks and it's solution

It can be shown that the data-centric routing protocol can save energy and prolong the lifetime of large-scaled and dense wireless sensor networks by simulation and mathematical approaches.