Preventing human error in healthcare is a difficult challenge, with multiple approaches to developing prevention methods and tools. The purpose of this article was to construct a method for preventing human error in medical device use from the perspective of Total Quality Management (TQM). Drawing on cases of errors made when using medical devices, error mechanisms were identified. Considering aspects of humans, medical devices, and interactions between these, we investigated error behaviours, as well as their inducing factors and situations. The methods of eliminating those factors causing medical error behaviours were proposed based on the behavioural mechanism of the error. The findings indicate that TQM is an effective way to reduce medical errors.

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In order to obtain the thermal comfort work environment, the distribution of temperature and airflow velocity in typical computer room of school building is discussed with different supply air angles and velocities of incidence by CFD model. The calculated temperature after cooling in the room has a good agreement with the measured value. Furthermore, the distribution of temperature and airflow is uniform and the environment is comfort for working with supply air angles and velocity of incidence 45° and 60° and supply air velocity of incidence 1m/s comparing with that of other parameters. Additionally, the change of temperature becomes slow down with the increment of time and the air-conditioning has less influence on the change of temperature after about 900s with supply air angle and velocity of incidence 45°and 1m/s, respectively. The research is of great significance both in theory and practice to design air conditioning systems and evaluate the thermal comfort conditions.

As regards the solution of ensemble elastic stability of assemble and lattice boom with complicated boundary conditions are rarely discussed, it is always plaguing designers. In this article, through analyzing the characteristics of vice-boom and vice-boom strut bar be caused complex deformation under load, based on the deformation relationship among vice-boom, vice-boom strut bar and main-boom ends, establishing elastic stability theory mathematical-mechanical model, using the theory of calculating the Euler critical force, proposed the method and numerical value to determine length conversion factor of assemble boom. This article has an inaugural significance of theory.

In this paper, the anticorrosive properties of perfluorooctanoic acid (PFOA) on Q235 mild steel corrosion were estimated in simulated seawater. XRD and EDS results showed that PFOA could penetrate the rust layer and adsorb on the surface of steel and destroy rust layer. Our polarization measurements revealed that PFOA is a useful inhibitor, with a more pronounced anode effect, while impedance results also indicated successful adsorption of the PFOA species on the steel surface. Laser confocal scanning microscope studies give the evidence that corrosion resistance of the treated samples improved compared to the untreated samples. Molecular simulation technique was used to confirm the ability of PFOA to decrease corrosion. The 150 g/L concentration of PFOA showed the most significant improvement in the anticorrosive property.