3modeling of staged membrane reactor

... content, Figure Salient features of Membrane reactors Gallucci, F., Basile, A and Hai, F I "Introduction—A review of Membrane reactors" in Membranes for membrane reactors: Preparation, Optimization ... the main advantages of the fluidized bed membrane reactors are: Gallucci, F., Basile, A and Hai, F I "Introduction—A review of Membrane reactors" in Membranes for membrane reactors: Preparation, ... developed a membrane- assisted fluidized bed reactor for the partial oxidation of Gallucci, F., Basile, A and Hai, F I "Introduction—A review of Membrane reactors" in Membranes for membrane reactors:...

Ngày tải lên: 13/05/2014, 01:02

... dual-phase composite membranes were fabricated and studied The development of asymmetric membrane reactor and modification of membrane surface are important for the improvement of oxygen permeation ... two sides of the membrane Based on the different mechanism, MEIC membranes can be classified to single phase membrane and dual-phase membrane The single phase membrane is consisted of only one ... conductor composite membrane 32 Figure 2.6 Thermodynamic representation of the partial oxidation of methane 34 Figure 2.7 Schematic diagram of a ceramic catalytic membrane reactor 36 Figure 3.1...

Ngày tải lên: 09/09/2015, 10:13

... HOLLOW FIBER MEMBRANE REACTOR FOR HIGH TEMPERATURE WATER GAS SHIFT REACTION Figure 8.1 Schematic diagram of catalytic hollow fiber membrane reactor Figure 8.2 SEM images of Al2O3-YSZ membrane support ... conditions of electroless plating bath of Pd x List of Figures LIST OF FIGURES CHAPTER LITERATURE REVIEW Figure 2.1 The equilibrium thermodynamic of high temperature WGS reaction of various steam ... of Pd membrane thickness) Figure 8.5 The effect of coating times (a) time, (b) times, (c) times, Left (internal surface) Right (cross-section of Pd membrane thickness) Figure 8.6 SEM Images of...

Ngày tải lên: 09/09/2015, 11:22

... diffusions of cations in YSZ-NiO composite 152 7.3.2 TPR of NiO-YSZ composite 156 7.3.3 Characterizations of dual functional tubular membrane reactor 157 7.3.3.1 Fabrication of membrane reactor ... commercialization of a nickel catalyzed COMR, the catalyst stability of the membrane reactor has to be solved 1.2 Objectives of this thesis work The scope of this thesis work includes (i) fabrication of asymmetric ... into COMR via the development of a new membrane fabrication technique In such a dual-function membrane reactor the support of membrane in COMR must also be the support of the POM catalyst in the...

Ngày tải lên: 12/09/2015, 11:29

... at the C terminus of Cub will be cleaved off and result in downstream reactions, which is the activation of LacZ and HIS3 reporter genes [7] 3.2 Identification of Cellular Membrane Proteins Interacting ... Discussion 3.1 Principle of Split-Ubiquitin Screening System Studies have shown that the use of yeast two hybrid system, which is a genetic assay for in vivo detection of interactions of proteins, enables ... first round of screening Half of the colony was streaked on SD/-Trp agar plate and the other half inoculated into 20µl of PCR mix PCR products were sequenced to determine the identity of the interacting...

Ngày tải lên: 02/11/2012, 11:08

... causing reduction of Ras membrane affinity Recent experiments showed that depalmitoylation of H- and N-Ras is responsible for Membrane targeting of K-Ras retrograde transport of these isoforms through ... properties of the plasma membrane in the subcellular distribution of K-Ras In particular, we investigated (a) the role of surface charge on inner and outer leaflet of plasma membrane and (b) effect of ... suggest that membrane association and plasma membrane targeting of K-Ras are a consequence of the electronegative sensing function of the C-terminal domain of this protein, and that membrane association...

Ngày tải lên: 19/02/2014, 00:20

... www.ebi.ac.uk/fasta3/) RESULTS Purification of a heme-containing enzyme complex from the membrane fraction of A fulgidus The genome of A fulgidus encodes several membranebound oxidoreductases that share ... Sequence analysis of subunits of the membrane- bound nitrate reductase from a denitrifying bacterium: the integral membrane subunit provides a prototype for the dihaem electron-carrying arm of a redox ... Topology of the Hmcb Subunit of the Hmc Complex of Desulfovibrio vulgaris Anaerobe 2, 231–238 34 Dolla, A., Pohorelic, B.K., Voordouw, J.K & Voordouw, G (2000) Deletion of the hmc operon of Desulfovibrio...

Ngày tải lên: 21/02/2014, 03:20

... activation of the CYP1A1-catalyzed oxidation of the (+)-7,8-diol was less pronounced Effects of nonbilayer lipids on the metabolic rates of epoxidation We analyzed the effects of a typical member of ... class of phospholipids, namely PtdEtn [30] Together with PtdCho, it belongs to the main components of the liver microsomal membrane [29] Comparison of CYP1A1 activity in vesicles consisting of Ole2PtdCho/ ... activation of the CYP1A1-catalyzed epoxidation reaction of 7,8-diols and the enhanced nonbilayer phase propensity in membranes containing PtdEtn Effect of lipids on the stereoselectivity of epoxidation...

Ngày tải lên: 08/03/2014, 10:20

... nonessential À1 À1 Plots of KmV max and V max vs the ratio of bound linoleic to oleic acid in À1 À1 the plasma membrane of U maydis d, KmÆV max ; m, V max Fig Correlation between the ratio of CLB-linoleic ... substrate dependence of H+-ATPase hydrolytic activity from U maydis plasma membrane vesicles Models of inhibition Hanes Plot of data obtained from wildtype samples Concentration of MgATP in mM; ATPase ... effects of EBI compounds on the plasma membrane H+-ATPase of U maydis Furthermore, the utilization of two different targets in the same biosynthetic route permitted us not only the confirmation of...

Ngày tải lên: 08/03/2014, 22:20

... to progress has been the use of unreliable methods to isolate membrane rafts The conventional protocol, irrespective of the type of membrane, has been to recover a membrane fraction that survives ... component of membrane rafts irrespective of the isolation method [6,17] A third type of lipid enriched in membrane rafts are the glycosphingolipids [18] Because the molecular species of sphingolipids ... of long-chain molecular species of lipids in coupling domains of bilayer structures [24,25] The role of these long-chain molecular species has now been reassessed in the light of the action of...

Ngày tải lên: 15/03/2014, 23:20

... log of the observed first-order rate kinetics of inactivation constant against log of EDTA concentration n, the slope of the plot, was calculated as 0.44 and estimates the number of molecules of ... single molecular species of A pisum membrane- bound aminopeptidase in this tissue, as judged by Mono Q chromatography after solubilization of almost 100% of its activity The membrane- bound APN from ... perimicrovillar membranes [27,28] Function of A pisum APN and lectin toxicity The role of the microvillar aminopeptidase is postulated to be hydrolysis of oligopeptides formed by the action of luminal...

Ngày tải lên: 16/03/2014, 12:20

... showing that the pattern of transmembrane domains is conserved within a functional class of membrane protein (A) LGICs typically have a closely spaced cluster of three transmembrane domains (dark ... exhibit a characteristic pattern of transmembrane domains Channels are formed by four groups of six transmembrane domains Within each group, the first five transmembrane domains are closely spaced, ... the start of the sequence (Fig 2A) Each of the three peaks had an amplitude of 1–2 HU, and the cluster of peaks was bracketed with deep valleys extending below )2.5 HU The cluster of three peaks...

Ngày tải lên: 17/03/2014, 23:20

... abolished by deletion of individual membrane- proximal domains of gp130 Thus, in BaF3-cells, each of the membrane- proximal domains of gp130 is necessary for the efficient formation of a signal transducing ... DISCUSSION Each of the three membrane- proximal domains of gp130 is required for signal transduction in response to LIF and OSM To investigate the role of the membrane- proximal FNIIIdomains of gp130 ... Replacement of single membrane- proximal FNIII-domains of gp130 by corresponding domains of GCSFR leads to different effects on signal transduction To investigate, if the function of the membrane- proximal...

Ngày tải lên: 18/03/2014, 01:20

... translocation of PS to the outer leaflet to form a special membrane domain, where apoA-I binds and solubilizes membrane lipids [81] Membrane meso-domain organization and reorganization On the plasma membrane, ... cholesterol available to cold MbCD The effect of the reduction of plasma membrane SM content on the function of ABCA1 is quite different from that on the function of ABCG1, since ABCG1-mediated cholesterol ... distribution of FEBS Journal 278 (2011) 3190–3203 ª 2011 The Authors Journal compilation ª 2011 FEBS 3193 Function and regulation of ABCA1 K Nagao et al Table Effects of mutations on the functions of ABCA1...

Ngày tải lên: 22/03/2014, 15:21

... effects on both the membrane- bound and the solubilized forms Effects of pressure on ¯uorescence probes Fig E€ect of pressure on the intensity and kmax of intrinsic ¯uorescence of membrane- bound Na+/K+-ATPase ... of transmembrane a helices, and a separation in the contact surface of membrane and protein due to the thickening and shrinkage of lipid bilayer For the last case, a quantitative estimation of ... transmembrane protein, is disrupted and fragmented resulting in the destruction of the organized structure of protein and lipid bilayer The pressure-induced destruction of a biomembrane composed of...

Ngày tải lên: 24/03/2014, 00:21

... every isoform displays a transmembrane region Knowing whether all isoforms in Astacus are membrane bound proteins is interesting because it raises questions about both the evolution of ACE in ... thickness of the staining is the result of the morphology of spermatozoid in Astacus Indeed, the spermatozoid is almost devoid of cytoplasm, and the cell membrane is highly invaginated, forming ... positive casing of finely granular material, suggesting the presence of complex carbohydrates such as in mucus [16,17] This most likely has resulted in the thick staining of spermatozoid membrane that...

Ngày tải lên: 30/03/2014, 01:20

... detergent-based method consists of solubilization of cellular membranes with 1% Triton at °C and recovery of the buoyant membrane fractions from the interface of a sucrose density gradient (typically ... is very often the first step in the biochemical analysis of the role of these domains in cellular signalling After disruption of cells, lipid rafts ⁄ caveolae can be extracted by virtue of their ... and the size of the domains containing those clusters has been estimated In summary, multiple lines of evidence have helped to argue in favour of the existence of lipid rafts in cell membranes and...

Ngày tải lên: 30/03/2014, 02:20

... the membrane and function as a size-selective filter that allows crossing of the membrane by a wide variety of small solutes, but prevents transfer of ‘bulky’ compounds, including ATP and cofactors ... channel This type of channel is characteristic of the outer membrane of Gram-negative bacteria [21] Therefore, the overall functional organization of the yeast peroxisomal membrane transport ... mammalian peroxisomal membrane [10], the membrane of yeast peroxisomes provides free access to the particles for small solutes but prevents diffusion of bulky solutes such as cofactors (NAD ⁄ H ⁄...

Ngày tải lên: 30/03/2014, 02:20

... 430 pmol of [1-14C]IPP (2.1 GBqÆmmol)1), nmol of (all-E) farnesyl diphosphate, 0.2 lmol of a-glycerophosphate, lmol of MgCl2, lmol of sodium phosphate buffer, pH 5.8, and suitable amounts of recombinant ... characterized the function of an archaeal homologue of plant GGR and report here that the enzyme is able to reduce geranylgeranyl groups of archaeal membrane lipid precursors The properties of the enzyme ... recombinant membrane proteins precipitate with the membrane fractions of E coli, even though it had not been solublized with detergents This characteristic of A fulgidus GGR is also similar to that of...

Ngày tải lên: 30/03/2014, 09:20

... Alteration of the asymmetric distribution of lipids between the inner and outer leaflets of the membrane and a lateral segregation of lipid components in the membrane may also cause fluctuations of the ... leaflet [17–19], an alteration of the asymmetric distribution of PS in the membrane causes changes in the extent of exposure of PS to the intracellular surface of the plasma membrane which is accessible ... concentration of the latter is selected as a possible local concentration of PS in an inner leaflet of the plasma membrane Nine per cent of the total phospholipid content of the rat liver plasma membrane...

Ngày tải lên: 30/03/2014, 10:20