نتایج جستجو برای: trans membrane pressure

تعداد نتایج: 843070  

Journal: :THE REVIEW OF HIGH PRESSURE SCIENCE AND TECHNOLOGY 1999

Journal: :journal of oil, gas and petrochemical technology 0
seyede fateme banihashemi nano structure material research center, faculty of chemical engineering, sahand university of technology hamed azani nano structure material research center, faculty of chemical engineering, sahand university of technology ali akbar babaluo nano structure material research center, faculty of chemical engineering, sahand university of technology

in the present work, b-zsm-5 zeolite membranes were synthesized on porous tubular α-alumina supports by several subsequence in situ crystallization hydrothermal treatments. the tio2- bohmite and ɣ- alumina intermediate layers were applied to improve the lattice matching between zeolite layer and the support. the uniform membrane intermediate layers with low permeation resistance were prepared o...

Journal: :journal of membrane science and research 0
iman khalilinejad membrane processes research laboratory (mprl), department of chemical engineering, amirkabir university of technology (tehran polytechnic), mahshahr campus, mahshahr, p.o. box 415, iran hamidreza sanaeepur membrane processes research laboratory (mprl), department of chemical engineering, amirkabir university of technology (tehran polytechnic), mahshahr campus, mahshahr, p.o. box 415, iran ali kargari membrane processes research laboratory (mprl), department of chemical engineering, amirkabir university of technology (tehran polytechnic), mahshahr campus, mahshahr, p.o. box 415, iran

in this work, novel thin film composite membranes (tfcs) of poly (ether-6-block amide) (pebax-1657) on a polyvinyl chloride (pvc) ultrafiltration membrane as support were prepared using inclined coating method for co2 separation. investigating the effects of top selective layer thickness formed by controlling the coating angle (15-60°) and polymer solution concentration (5-10 wt.%), and also, t...

Journal: :Science 2009
Anton Maximov Jiong Tang Xiaofei Yang Zhiping P Pang Thomas C Südhof

Trans-SNAP receptor (SNARE, where SNAP is defined as soluble NSF attachment protein, and NSF is defined as N-ethylmaleimide-sensitive factor) complexes catalyze synaptic vesicle fusion and bind complexin, but the function of complexin binding to SNARE complexes remains unclear. Here we show that in neuronal synapses, complexin simultaneously suppressed spontaneous fusion and activated fast calc...

A. Mahmoudi G. Khanbabaei M. Asghari, M. Namdari V. Zargar

A PEBAX-nano zeolite X mixed matrix membrane was fabricated and operationally characterized using single gas (CO2) permeation. X-ray diffraction (XRD) analysis was used to study the arrangement of polymer chains of mixed matrix membrane. The membranes were characterized by scanning electron microscopy (SEM) to study cross-sectional morphology. The single gas permeability were carried...

3D modeling of Pd/α-Al2O3 hollow fiber membrane by using computational fluid dynamic for hydrogen separation from H2/N2 mixture was considered in steady and unsteady states by using the concept of characteristic time. Characteristic time concept could help us to design and calculate surface to volume ratio and membrane thickness, and adjust the feed conditions. The contribution of resistance be...

2009
Daniel J. Anderson Jesse D. Vargas Joshua P. Hsiao Martin W. Hetzer

Formation of the nuclear envelope (NE) around segregated chromosomes occurs by the reshaping of the endoplasmic reticulum (ER), a reservoir for disassembled nuclear membrane components during mitosis. In this study, we show that inner nuclear membrane proteins such as lamin B receptor (LBR), MAN1, Lap2beta, and the trans-membrane nucleoporins Ndc1 and POM121 drive the spreading of ER membranes ...

A. Mahmoudi G. Khanbabaei M. Asghari, M. Namdari V. Zargar

A PEBAX-nano zeolite X mixed matrix membrane was fabricated and operationally characterized using single gas (CO2) permeation. X-ray diffraction (XRD) analysis was used to study the arrangement of polymer chains of mixed matrix membrane. The membranes were characterized by scanning electron microscopy (SEM) to study cross-sectional morphology. The single gas permeability were carried...

Journal: :American journal of physiology. Cell physiology 2005
Davin Jagnandan William C Sessa David Fulton

Mislocalization of endothelial nitric oxide (NO) synthase (eNOS) in response to oxidized low-density lipoprotein, cholesterol depletion, elevated blood pressure, and bound eNOS interacting protein/NOS traffic inducer is associated with reduced NO release via unknown mechanisms. The proper targeting of eNOS to the plasma membrane or intracellular organelles is an important regulatory step contro...

Journal: :The Journal of General Physiology 1998
Lisa Senzel Paul D. Huynh Karen S. Jakes R. John Collier Alan Finkelstein

The T domain of diphtheria toxin, which extends from residue 202 to 378, causes the translocation of the catalytic A fragment (residues 1-201) across endosomal membranes and also forms ion-conducting channels in planar phospholipid bilayers. The carboxy terminal 57-amino acid segment (322-378) in the T domain is all that is required to form these channels, but its ability to do so is greatly au...

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