Customized disassembly and processing of waste electrical and electronic equipment

A new customized disassembly and processing approach for waste electrical and electronic equipment (WEEE) based on the Analytic Hierarchy Process (AHP) and Particle Swarm Optimization (PSO) algorithms is presented. The merits of the approach include the flexibility to handle WEEE to meet various requirements of stakeholders, and the capability to optimize WEEE processing selectively. The feasibility of the approach has been verified through an industrial case of Liquid Crystal Display (LCD) television WEEE processing. The case study shows that with the selective optimized plan, the potential recovery values during the disassembly process can be improved at least two times.NOTICE: this is the author’s version of a work that was accepted for publication in Manufacturing letters. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Manufacturing letters, [9, (2016)] DOI: 10.1016/j.mfglet.2016.07.001© 2016, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/<br/

Effect of surfactant replacement on Pneumocystis carinii pneumonia in rats

The effect of intratracheal surfactant instillation on pulmonary function in rats with Pneumocystis carinii pneumonia (PCP) was investigated. In those animals which developed PCP with severe respiratory failure after administration of cortisone acetate s. c. over 8-12 weeks, pulmonary function was improved by surfactant instillation. PaO2 values 30 min after surfactant instillation were significantly higher compared to pretreatment values and also compared to PaO2 values of rats 30 min after receiving saline (482.9 mmHg±44.7, 170.7 mmHg ±39.3 and 67.2 mmHg±17.4, respectively). Histological examination showed that alveoli of rats with PCP which received no exogenous surfactant are filled with foamy edema, whereas after exogenous surfactant alveoli are stabilized and well-aerated. These results indicate that exogenous surfactant may help patients with severe PCP to overcome an acute stage of respiratory distress

Décomposition de l'eau par l'aigrette

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