PURPOSE: The purpose of this study was to explore the perceptions and experiences of patients with wound healing by secondary intention after the removal of a thoracic drainage tube. DESIGN: A qualitative phenomenological study. SUBJECTS AND SETTING: After removal of the tube, patients who were attending a nursing clinic that provides WOC care to a population of around 1 million people in Suzhou, China, were invited to participate. METHODS: Semistructured interviews were digitally audio-recorded and transcribed verbatim. Analysis of data was performed using Colaizzi's 7-step thematic analysis. RESULTS: Three major themes emerged from the interviews, namely, emotional stress response, impaired social function, and increased disease burden. CONCLUSION: Patients with wound healing by secondary intention after the removal of the drainage tube perceived they experienced an emotional stress reaction accompanied by increased psychological and economic burden. They also experienced impaired social function. There is a critical need to develop health education plans for use during the pre- and postoperative periods to reduce emotional, social, and economic consequences associated with delayed wound healing.

The paper looks at improving the uncertainty analysis in ISO 5198 and examines the conditions under which the equation to evaluate the uncertainty in ef ciency in the paper by M ilne holds good. An alternative to evaluating the uncertainty of pump ef ciency is described in detail in this paper. After comparing the factors that in uence the uncertainty of ef ciency, the paper determines the factors that can be neglected and presents measures to reduce the uncertainty in ef ciency in pump ef ciency testing. Keywords: pump ef ciency, thermodynamic method, uncertainty analysis NOTATION a isothermal coef cient (m 3 /kg) c speci c heat (J/kg K ) e speci c energy (J/kg) h enthalpy (J/kg) p pressure (Pa) q heat ux (W/m 2 ) Q volume owrate (m 3 /s) s entropy (J/kg) t temperature ( 8C) T temperature (K ) Dt temperature difference ( 8C) v speci c volume (m 3 /kg) V velocity (m/s) w work per unit mass (J/kg) Z elevation (m) a v volume expansivity (K G ) d uncertainty Z ef ciency

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Failure mode and effects analysis (FMEA) is a widely used technique for designing, identifying and eliminating known and/or potential failures from system, design and process. In the traditional FMEA, for each failure mode, risk factors of Occurrence, Severity and Detection are evaluated and simply multiplied to obtain a risk priority number. Besides, the weights of three risk factors are also ignored. To overcome these shortcomings of traditional FMEA, we propose a novel FMEA approach for obtaining a more rational ranking of failure modes by integrating entropy weighting method with 'Technique for Order Performance by Similarity to Ideal Solution'(TOPSIS). Finally, a case study about purchasing website is provided to demonstrate the feasibility and benefits of the proposed approach. A plugin in our tool-Breeze is developed to support the proposed approach.