In on-line position locating and speed probing for wireless in-pipe micro swimming robot in term of non-contact, laser apparatus is adopted in lab to locate micro in-pipe robot as to form close-up control, however online inspection cannot be realized yet.

Recurrence of random walks in an independent environment on a halfline;

Property of random walk in time random environments on the line;

Biased random walk-based replication and search

The properties of generrated chain for random walks on half-line in random;

The average absorbable time about random walks with a absorbable wall;

Recurrence of random walks in independent environment on half-line;

The concept of Eco-tourism should be limited as Eco-tourism Activities, and its connotations should be considered from three aspects: tourism area, tourist motivation, and tourist behavior.

Gender and educational devel affect the tourist motivation of inbound tourists in a lesser degree.

The author also exposed some problems in the developing process of our domestic tourist industry,and discussed the possibility of developing our domestic tourist market and put forward a basic method to develop the domestic tourist industry greatly in the aspects of population,purchasing power,tourist motivation and tourist rights.