Results 221 to 230 of about 74,298 (299)
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Applied Energy, 2020
Proton exchange membrane fuel cell (PEMFC) is one of the most promising power sources for vehicle applications. However, improving efficiency has always been the focus of researches for PEMFCs. To improve the hydrogen utilization and protect the stack of
Qinggang He, Yang Hou
exaly +2 more sources
Proton exchange membrane fuel cell (PEMFC) is one of the most promising power sources for vehicle applications. However, improving efficiency has always been the focus of researches for PEMFCs. To improve the hydrogen utilization and protect the stack of
Qinggang He, Yang Hou
exaly +2 more sources
The Annals of Pharmacotherapy, 2022
Background: The Impella device is a continuous axial flow pump which provides hemodynamic support by expelling blood into the aorta. The manufacturer recommends using dextrose-based heparin containing solutions as the default purge.
Kyle Bergen +4 more
semanticscholar +1 more source
Background: The Impella device is a continuous axial flow pump which provides hemodynamic support by expelling blood into the aorta. The manufacturer recommends using dextrose-based heparin containing solutions as the default purge.
Kyle Bergen +4 more
semanticscholar +1 more source
International Journal of Energy Research, 2022
The lumped parameter model of the hydrogen system based on exhaust hydrogen recirculation and the CFD model of PEMFC stack were established in this paper. The system simulation results were used as the input of the stack model.
Ben Chen +5 more
semanticscholar +1 more source
The lumped parameter model of the hydrogen system based on exhaust hydrogen recirculation and the CFD model of PEMFC stack were established in this paper. The system simulation results were used as the input of the stack model.
Ben Chen +5 more
semanticscholar +1 more source
Applied Thermal EngineeringThis paper comprehensively investigates the purge mechanism of proton exchange membrane fuel cells during the shutdown process, which qualitatively examines the effect of purge parameters (including current density, stoichiometric ratio, and relative ...
Zhenya Zhang, Zhengxuan Liu
exaly +2 more sources
Use of Sodium Bicarbonate Purge Solution in Impella Devices for Heparin-Induced Thrombocytopenia
Journal of pharmacy and practice, 2022Heparin purge solution is recommended to be used in Impella devices to prevent biomaterial buildup and subsequent device dysfunction. The use of sodium bicarbonate purge solution in an Impella device is described in two patients with heparin-induced ...
Adnan M. Al-Ayoubi +6 more
semanticscholar +1 more source
Energy, 2019 This paper presents a mathematical model to enable a more in-depth understanding of the combined heat and mass transfer processes of a counter-flow indirect evaporative cooler operating in semi-arid regions.
Muhammad Wakil Shahzad +2 more
exaly +2 more sources
Purge strategy optimization of proton exchange membrane fuel cell with anode recirculation
Applied Energy, 2018Anode recirculation increases hydrogen utilization but also causes nitrogen crossover and accumulation in proton exchange membrane fuel cell (PEMFC) anode. Purge is necessary to remove the impurity.
Kui Jiao, Bowen Wang
exaly +2 more sources
Effect of misalignment at 2nd vane endwall on heat transfer with purge flow
, 2021Since the domestic power plants are typically operated at a partial load rather than the design point, the thermal expansion decreases, resulting in misalignment between first stage rotor and second stage stator.
Jeongju Kim +5 more
semanticscholar +1 more source
, 2020
Proton exchange membrane (PEM) fuel cells are widely considered as potential alternative energy candidates for internal combustion engines because of their low-temperature start, high energy density, and ease of scale up.
Kunlun Shen, Suhan Park, Young‐Bae Kim
semanticscholar +1 more source
Proton exchange membrane (PEM) fuel cells are widely considered as potential alternative energy candidates for internal combustion engines because of their low-temperature start, high energy density, and ease of scale up.
Kunlun Shen, Suhan Park, Young‐Bae Kim
semanticscholar +1 more source
Radiology, 1954
In 1943, Heilbrun published an article on extensive changes in the colon, apparently as a result of excessive and prolonged use of irritant cathartics. To our knowledge, no other report on this subject has appeared in the literature. During the past two years we have seen 2 patients with changes in the colon very similar to those described by Heilbrun.
F C, JEWELL, J R, KLINE
openaire +2 more sources
In 1943, Heilbrun published an article on extensive changes in the colon, apparently as a result of excessive and prolonged use of irritant cathartics. To our knowledge, no other report on this subject has appeared in the literature. During the past two years we have seen 2 patients with changes in the colon very similar to those described by Heilbrun.
F C, JEWELL, J R, KLINE
openaire +2 more sources