Based on analyzing the discharge of the partially penetrated wells in phreatic aquifer,introducing the conception of "the effective zone"of pumping,probing into the feasibility and comparative error by translating the calculation of the discharge of the partially penetrated wells into the calculation of the discharge of the equivalent completely penetrated wells.

A dynamic bandwidth partition scheme for multi-services based on effective bandwidth under large deviation approximation;

By means of the effective bandwidth concept in broadband wireless IP network, this paper proposed an algorithm of call admission control that can adjust the threshold of call admission control adaptively.

The model of the effective bandwidth is based on the situation in which the rejected requests are resubmitted in the next cycle.

Method of End-to-end Available Bandwidth Measurement;

The paper analyzes the overhead introduced by the protocol mechanism , calculates the fixed bandwidth consumed by data encapsulation and MAC mechanis m, and figure out the maximum available bandwidth the IEEE802.

By analyzing the overhead introduced by the protocol mechanism, the maximum available bandwidth provided by the IEEE802.

Based on the armlength-ties and strong-ties theory,this thesis attempts to analyze the informal relationship and its evolution in the enterprises and propose that effective ties relationship should be built in the enterprises and relevant measures should be taken to bu.