in order to present a new and high performance structure of pem fuel cell and study the influence of the flow direction and distribution on the rate of reactants diffusion, three novel models of vertical reactant flow injection into the anode and cathode reaction area field have been introduced. they consist of one inlet and two inlets and also a continuous channel. the governing equations on t...

The combined use of low heat Portland cement (LHC), MgO-based expansive agent (MEA) and shrinkage reducing admixture (SRA) is beneficial to reduce the cracking risk concrete. In this study, effects MEA SRA on rheological behaviour LHC paste were investigated using dynamic static shearing tests. response surface methodology was used estimate MEA, SRA, superplasticizer parameters, while zeta pote...

BACKGROUND Pretreatment is a vital step upon biochemical conversion of lignocellulose materials into biofuels. An acid catalyzed thermochemical treatment is the most commonly employed method for this purpose. Alternatively, ionic liquids (ILs), a class of neoteric solvents, provide unique opportunities as solvents for the pretreatment of a wide range of lignocellulose materials. In the present ...

BACKGROUND Poor platelet inhibition by aspirin or clopidogrel has been associated with adverse outcomes in patients with cardiovascular diseases. A reliable and facile assay to measure platelet inhibition after treatment with aspirin and a P2Y12 antagonist is lacking. Multiple electrode aggregometry (MEA), which is being increasingly used in clinical studies, is sensitive to platelet inhibition...

To achieve the CO2 emission control as urgent task of Carbon Peak and Neutrality, desorption experiments were performed with a new tri-solvent MEA-EAE(2-(ethylamino)ethanol)-DEEA(N, N-diethylethanolamine) five solid acid catalysts: blended catalysts γ-Al2O3/H-ZSM-5 = 2:1, H-Beta (Hβ), H-mordenite, HND-8, HND-580 H2SO4 replacement. A series sets in typical recirculation process by means both hea...

UNLABELLED Fear-related psychopathologies such as post-traumatic stress disorder are characterized by impaired extinction of fearful memories. Recent behavioral evidence suggests that the neuropeptide tuberoinfundibular peptide of 39 residues (TIP39), via its receptor, the parathyroid hormone 2 receptor (PTH2R), modulates fear memory. Here we examined the anatomical and cellular localization of...

INTRODUCTION Since the introduction of the Micro-Electrode Array (MEA) technology [1], it has been exploited as a powerful tool providing distributed information about learning, memory and information processing in cultured neuronal networks, changing the field of view from single cell level to the scale of complex biological networks. Despite the great advantage of the MEA technology in record...

This research aims to develop a Student Activities Worksheet Based on the MEA Model ionic equilibrium and pH of buffer solution material for grade XI SMA/MA. are designed according stage learning model. The type this is development (R D) about process 4-D. object student activities worksheets based MEA. data collection validation user response questionnaire. validity content aspect obtained res...

In December 2012, scientists from around the world gathered in Waikoloa, Hawaii for 'Auxin 2012', a meeting organized by Paula McSteen (University of Missouri, USA), Ben Scheres (Utrecht University, The Netherlands) and Yunde Zhao (University of California, San Diego, USA). At the meeting, participants discussed the latest advances in auxin biosynthesis, transport and signaling research, in add...