Contrast analysis on effect of the humidification of artificial airway in the three kinds of wet methods;

Research progress on artificial airway humidification;

Objective To observe the clinical effect of continuous humidification and quick washing on airway after incision of trachea.

By means of centrifugal modelling tests, the wetting properties of loess foundation are studied according to construction characteristics of loess foundation.

In this paper, stress and deformation of the core wall of the Pubugou soil and rock fill dam are analysed by FEM based on a partial yield elastoplastic constitutive model and a new wetting model.

In order to study effect of viscose activated carbon fibers(ACFs) modified with wet oxidant,the influence of textural characteristics and surface chemistry of ACFs modified with wet oxidant of H_2O_2 in the adsorption of toluene were studied under laboratory tests.

By studying and summing up the common failure physical models and combining with the quantum mechanics theory on the relationship between the electronic equipment aging reaction rate and tempreture-humidity,a hygrothermal aging life model for solid propellant storage and usage is established with the propellant mechanical properties as the research object.

The hygrothermal aging behavior of the CF /epoxy NOL rings in distilled water at 35℃, 55℃, 65℃and 75℃was analyzed in terms of the absorption characteristics, static and dynamic mechanical properties.

In this paper, the standard accelerated hygrothermal aging spectrum for military aircraft composite structures is given based on the domestic climatic environment and the developing aircraft properties, and the aging effects for our composite material system are systematically studied, and the conclusion for guiding and modifying the structure design are given.