Presents the determination of overspreading rate, sectional wind velocity and terminal filter efficiency in unidirectional flow clean room design and the calculation and selection of pre-fliter.

This paper sets up the wind speed model considering wake effect only using the available parameters and data of wind farm and turbines within the park according to the shadow of the upstream wind turbines to the downstream turbines and variable shadow size at some wind direction after analyzing calculation method of leeside wind speed.

Relationship of tube row number and face velocity in an evaporator for air conditioning unit and its application;

The influence of face velocity,condensing temperature and contact thermo-resistance on the quantity of heat-exchanger and the influence of air resistance on face velocity were analyzed.

With JASON-1 and TOPEX/POSEIDON measurements taken during the verification phase in the China Seas and Northwest Pacific Ocean,such parameters as the sea surface wind speed,significant wave height,backscatter coefficient and sea surface height are compared systematically,and the coherence of the two missions is analyzed.

Based on altimetric observation of sea surface wind speeds over the South China Sea from Geosat satellite during the period between November 1986 to March 1989, the statistical characteristics of the sea surface wind speeds and the seasonal features of the wind field over the area are studied.