نتایج جستجو برای: pd membranes
تعداد نتایج: 151295 فیلتر نتایج به سال:
Dense Pd membranes are receiving significant attention for hydrogen separation in advanced coal-conversion processes because of their high hydrogen permeability and their nearinfinite selectivity. However, pure Pd is susceptible to hydrogen embrittlement as a result of the expansion of the Pd lattice during β-Pd-hydride formation. Furthermore, H2S, a coal gasification byproduct, severely inhibi...
In this work, a novel Pd–Ag double-skinned (DS-) membrane is used for the first time in conditions typical of propane dehydrogenation (PDH). This presents protective layer on top H2-selective one, which acts as shield against chemical deactivation and mechanical erosion under reaction conditions. While already been proven an efficient barrier fluidized beds, there no validation yet PDH reaction...
We describe a virucidal small molecule, PD 404,182, that is effective against hepatitis C virus (HCV) and human immunodeficiency virus (HIV). The median 50% inhibitory concentrations (IC(50)s) for the antiviral effect of PD 404,182 against HCV and HIV in cell culture are 11 and 1 μM, respectively. The antiviral activity of PD 404,182 is due to the physical disruption of virions that is accompan...
Background and Aim: Parkinson Disease (PD) is a common cause of disability in the aged. PD patients need life long drug therapy and rehabilitation. This study was to evaluate the initial manifestations of PD. Materials and Methods: In this case-series study, 100 consecutive elderly patients with PD enrolled in a prospective case series study in Valie-e-Asr neurology clinic affiliated to Birjan...
The use of ammonia as a hydrogen carrier requires efficient cracking technology. A promising solution is the membrane reactor (MR), which enables both decomposition and separation to take place within same device, providing advantages in terms efficiency compactness compared conventional systems. literature reports that ceramic-supported double-skinned Pd-Ag membranes show outstanding performan...
Direct lineage reprogramming through genetic-based strategies enables the conversion of differentiated somatic cells into functional neurons and distinct neuronal subtypes. Induced dopaminergic (iDA) neurons can be generated by direct conversion of skin fibroblasts; however, their in vivo phenotypic and functional properties remain incompletely understood, leaving their impact on Parkinson's di...
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