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A series of sorbents with a linear polyethylenimine (PEI) supported on the mesoporous molecular sieves, including MCM-41, MCM-48 and SBA-15, have been prepared and used to remove H 2 S from a model gas containing 0.40 v% of H 2 S and 20 v% H 2 in N 2 gas.peutereyleatherjacket The sorption was conducted in a fixed-bed system at a temperature range of 22–75 °C, a GHSV range of 337–1,011 h −1 and atmospheric pressure. peuterey down jacket The effects of the operating temperature, GHSV, the amount of PEI loading and the different molecular sieve supports were studied. A reduction in the temperature and GHSV improves the sorption performance of the supported PEI sorbents.http://www.peutereyleatherjacket.nu A synergetic effect of the SBA−15 support and PEI on the H 2 S sorption performance was observed. Loading 50 wt% PEI on SBA-15 gave the best breakthrough capacity,… while loading 65 wt% PEI on SBA-15 had the highest saturation capacity. The mesoporous molecular sieve with large pore size and three-dimensional channel structure favors increasing the kinetic capacity of the supported PEI sorbent. In addition, the developed sorbents can be regenerated easily at mild conditions (temperature range of 75–100 °C) and have excellent regenerability and stability. The results indicate that the mesoporous-molecular-sieve-supported polymer sorbents are promising for removing H 2 S from hydrogen gas streams.

Peuterey Homme Manteau
Peuterey Homme Manteau
Peuterey Homme Nouveau
Peuterey Homme Nouveau

This study assessed the impact of cardiac risk assessment using gated single-photon emission computed tomography (SPECT) on cardiac events in end-stage renal disease (ESRD) patients.;;We evaluated 215 asymptomatic patients who began dialysis between January 2005 and April 2009. peuterey brand Baseline electrocardiography and echocardiography were performed in all the patients. The subjects were stratified into low- and high-risk groups according to the baseline cardiac status, and gated SPECT was additionally recommended for the high-risk patients.;;The study population consisted of 50 low- and 165 high-risk patients undergoing SPECT. http://www.peutereyleatherjacket.nu Among the high-risk patients, 75 (45.5%) showed perfusion defects on SPECT and their overall cardiac-event rate per person-year of follow-up was 15.0%, significantly… higher than 4.5% in high-risk group without perfusion defect and 1.2% in low-risk group. The presence of perfusion defect was a significant independent predictor of adverse cardiac events [hazard ratio (HR) 2.11; 95% confidence interval (CI) 1.05-4.24; P = .035]. peutereyleatherjacket When gated SPECT was added to the clinical and the echocardiographic variables, the prognostic stratification significantly improved.

This dissertation shows how metaphor analysis may be used as an archeological method that takes the speech analyst beyond the surface of talk to disclose the generative density and sedimentation of possible meaning upon which a discourse is constructed. peuterey seriola My analysis shows that within the context of the discourse of integrated medicine this method can bring certain semantic properties into view which might otherwise remain obscured or hidden. The method developed here is a critical one, framed in terms of the problem of generativity ( Generativität), which is understood as the process of historical and intersubjective becoming. It involves questioning patterns of identity and difference that occur over the generations. http://www.peutereyleatherjacket.nu The problem of generativity, originally explored and… anticipated by Husserl, has been taken up by Anthony Steinbock and developed in terms of a generative phenomenological method. In this study I combine the historical and intersubjective frame of generative phenomenology with the textual and metaphoric focus developed in Paul Ricoeur’s phenomenological hermeneutics. peutereyleatherjacket My investigation critically examines, from the standpoint of a participant-observer, ‘the rule of metaphor’ in the texts of six ethnographic interviews with “alternative” health care practitioners.

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