Referring to the ventilation way of tunnel and mine, a new kind of ventilation system that suits SARS ward ventilation and dirty wind disposal is brought forward.

Under the training program for specialized nurses, the author has received two months\' clinical training as an intern in the stroke ward in HK Caritas Medical Center and experienced the uniqueness of the nursing mode for stroke patients for the acute, rehabilitation and community follow-up periods.

The noise-controlling model in the ventilation room is established using control theroy of system.

Based on the analysis of the structure,the noise theory,the acoustic characteristics,the spreading rule of the ventilation room,and by use of the system-controlling theory,the noise model is established.

Theoretical models for predicting indoor pollutant concentrations in ventilated rooms;

This paper states the problems and principles in kitchen ventilation design of large refectory according to their architecture characteristics.

Outlines local development in the design of resident kitchen ventilation, describes the structure, measurements, performance, costs and energy consumption of a ZRF system and a variable pressure system, and provides some proposals on design and construction concerned with kitchen ventilation of residential buildings.

This paper discusses the importance of mine ventilation, and connecting with the features of axial fan, designs a monitoring system of ventilation equipment room, and advances the automatic rotation of a working machine and reserve machine to ensure that the two and more fans can work evenly.