metal particles by the polyol process
ORGANIC CHEMICAL INDUSTRY PVC PRODUCTION BY THE SUSPENSION PROCESS pot
Ngày tải lên :
05/03/2014, 21:20
... in the new version of the RAINS model [8] for the modelling work carried out in the scope of the CAFÉ programme and the revision of the Gothenburg protocol Costs are not yet available on the ... uses This synopsis sheet is related to the PVC production by the suspension process only The suspension process for producing PVC resins is characterised by the formation of polymers in droplets ... which mix the batch with other batches to insure product uniformity The mixed batches are then fed to a continuous centrifuging operation that separates the polymer from the water in the slurry...
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Tài liệu Báo cáo khoa học: The distinct nucleotide binding states of the transporter associated with antigen processing (TAP) are regulated by the nonhomologous C-terminal tails of TAP1 and TAP2 ppt
Ngày tải lên :
20/02/2014, 02:21
... model for the transport cycle of the active TAP variant 2–1C2 The initiation step and the progress of the transport cycle are similar to the hypothesized peptide translocation model of the wild-type ... interactions with the TMDs rather than in the catalytic process of the NBDs [17] Low sequence homology is also a characteristic feature of the C-terminal tails directly downstream of the conserved ... ARK/Sigma The chimeric TAP construct 1V2 was created by ligation of the 1.6 kb ScaIfragment containing the C-terminus of TAP2 to the 3.8 kb ScaI-fragment containing the TMD and core NBD of TAP1 In the...
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Nitrogen doped ZnOfilm grown by the plasma-assisted metal-organic chemical vapor deposition pot
Ngày tải lên :
05/03/2014, 21:20
... mm PL spectrum was measured by a 325 nm He–Cd laser The PL signal from the sample was filtered by a monochromator and picked up by a CCD detector The power arriving at the sample was about mW with ... tensile stress induced by the deposition process The o-rocking curves are shown in the inset of Fig It shows that ZnO grows in single c-axis orientation with the c-axis normal to the sapphire basal ... the position of the UV emission peak The integrated PL intensity as a function of the excitation power on the logarithmic scale is plotted as shown in Fig From the figure, it is obvious that the...
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Báo cáo khoa học: A kinetic approach to the dependence of dissimilatory metal reduction by Shewanella oneidensis MR-1 on the outer membrane cytochromes c OmcA and OmcB potx
Ngày tải lên :
07/03/2014, 09:20
... acceptor These results therefore provide evidence that there are differences between the electron transfer pathways towards chelated Fe(III) on the one hand and either U(VI) or Se(VI) on the other ... 2007 The Authors Journal compilation ª 2007 FEBS J Borloo et al A B C D other Statistical analysis (Student’s t-test) between the MR-1R values and the sum of the values of the omcA– and the omcB– ... slightly, the affinity of OmcB for its metal substrate However, the curves totally refute the reverse possibility, i.e that OmcB is needed to get functional OmcA On the other hand, the derived...
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Báo cáo khoa học: Versatile regulation of multisite protein phosphorylation by the order of phosphate processing and protein–protein interactions pptx
Ngày tải lên :
07/03/2014, 10:20
... the binding affinity of the kinase or its catalytic activity at another site, so that the phosphorylation kinetics of one residue can depend on the phosphorylation state of other residues in the ... of the phosphorylation sites by the same kinase This study provides a link between the structural, kinetic and thermodynamic aspects of complex multisite phosphorylation on the one hand, and the ... state, the target can occur in free form or bound to kinase or phosphatase; the respective concentrations of the target will be denoted by Xn,0, Xn,K and Xn,P, respectively They are determined by the...
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Báo cáo khoa học: Modulation of nitric oxide-mediated metal release from metallothionein by the redox state of glutathione in vitro doc
Ngày tải lên :
07/03/2014, 15:20
... and therefore release of cadmium The presence of GSH reduces the metal release almost completely, while GSSG even slightly increased the cadmium release by nitric oxide The decay occurs in the ... in modulating the metal release from metallothionein in the absence of nitric oxide by Vallee, Maret and coworkers [22,37,38] These authors reported increased metal release in the presence of oxidized ... expression of opposing proteins As the metal is held in place by thiolate ligands [4] in MTs, other thiols may well influence the metal- bond formation and breakage The major low-molecular mass thiol...
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Báo cáo Y học: Holliday junction binding and processing by the RuvA protein of Mycoplasma pneumoniae ppt
Ngày tải lên :
17/03/2014, 17:20
... compensate for the loss of the negative charge are located nearby in the two Mycoplasma sequences but are positioned in the region corresponding to b sheet in the EcRuvA structure [17] The global ... reflected in the high conservation of the sequences forming the pin in the majority of bacteria with the exception of two Mycoplasma species and one of Ureaplasma In the RuvA proteins from these organisms ... Both MpRuvA and EcRuvA bound the junction Each formed two distinct complexes (Fig 2A) In the case of the E coli protein, the two complexes represent the binding of either a single tetramer of RuvA...
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Báo cáo khoa học: Suppression of nuclear factor-jB activity in macrophages by chylomicron remnants: modulation by the fatty acid composition of the particles pot
Ngày tải lên :
23/03/2014, 04:20
... shown that the fatty acid composition of CMR reflects that of the diet [28] and modulates their clearance from the blood by the liver [29] Furthermore, our recent work has established that the fatty ... support the idea that chylomicron remnants (CMR), the lipoproteins which carry dietary lipids from the gut to the liver, are also proatherogenic [4] Thus, CMR are taken up by and retained in the ... this study, we investigated the effects of CMR on NF-jB activation in macrophages and determined whether these are modulated by the fatty acid composition of the particles CRLPs enriched in SFA,...
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Báo cáo khoa học: Mechanism of the ring contraction process in vitamin B12 biosynthesis by the anaerobe Propionibacterium shermanii under aerobic conditions docx
Ngày tải lên :
23/03/2014, 09:20
... mechanism of vitamin B12 Fig The mechanisms of the ring contraction process in the biosynthesis of vitamin B12 postulated on the basis of the isolation of factor IV from the anaerobe P shermanii ... decrements of the 13C18O-amide (C27) oxygen in the ring A show that the mechanism of the ring contraction process in P shermanii is the same irrespective of the presence or absence of oxygen In other ... carbons in the 13 C-NMR spectrum of 13C,18O-vitamin B12 the 18O-retention ratio of the of [1-13C,1,1,4-18O3]ALA 13 C18O-carbonyl oxygen Mechanism of the ring contraction process in the biosynthesis...
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Báo cáo khoa học: Functional transitions of F0F1-ATPase mediated by the inhibitory peptide IF1 in yeast coupled submitochondrial particles pdf
Ngày tải lên :
23/03/2014, 12:20
... one to determine the affinity of the latent state (E ¼ in the above scheme) of the ATPase for IF1:Kd is % lM This value is much higher than the Kd for the IF1–ATPase interaction in the absence of ... was obtained by multiplying ordinates of curve by the ratio between uncoupled and coupled GTPase rates in the absence of IF1 It indicates expected uncoupled activity if catalysed by the same enzyme ... if the only difference between these two modes of slow activation is the back-pressure effect exerted by D~Hþ Anyway, in both cases, this background reactil vation, due to the high pH of the...
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Báo cáo khoa học: Nop53p interacts with 5.8S rRNA co-transcriptionally, and regulates processing of pre-rRNA by the exosome ppt
Ngày tải lên :
30/03/2014, 04:20
... involved in the processing of 7S pre-rRNA [27] The Rex complex, formed by the RNase D class of RNases, is also required for 5.8S rRNA maturation [28] In addition, the Ski complex, formed by proteins ... concentrated in the nucleolus, whereas the C-terminal portion of Nop53p might interact with the proteins in the pre-60S complex, but is less concentrated in the nucleolus These results raised the question ... in the polyadenylated form in Dnop53::GAL-NOP53 (Fig 6A), indicating that these RNAs are not efficiently processed or degraded by the exosome in the absence of Nop53p In order to determine whether...
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Báo cáo Y học: The processivity and fidelity of DNA synthesis exhibited by the reverse transcriptase of bovine leukemia virus pot
Ngày tải lên :
31/03/2014, 21:21
... of other RTs such as that of HIV [12] In the present study we have extended the investigation of BLV RT by an in vitro analysis of the processivity and the fidelity of DNA synthesis (namely, the ... and the variations were usually < 15% The relative frequency Fext values are the ratio of the rate constants (Vmax/Km) for the mispair divided by the ratio of the corresponding constants for the ... the mean lengths of the DNA primers extended by the three RTs under the assay conditions used The correction for the actual amount of dNTP incorporation for a given DNA product was achieved by...
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Báo cáo hóa học: " Study of the formation processes of gold droplet arrays on Si substrates by high temperature anneals" docx
Ngày tải lên :
21/06/2014, 05:20
... atmosphere by rapid insertion of samples in the heated zone in the central part of furnace reactor The annealing temperature was in the range of 900-1050°C, the duration in the range of 10-20 s, and the ... recrystallisation process Increase in the RTA temperature resulted in the formation of gold nanoislands on the surface of Si wafers The size and the density of islands were determined by the annealing ... on them both in furnace and RTA equipment result in the disjoining of gold films and the formation of the arrays of separated gold islands This process is strongly dependent on the quality of the...
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Báo cáo hóa học: " The Characteristics of Seebeck Coefficient in Silicon Nanowires Manufactured by CMOS Compatible Process" pptx
Ngày tải lên :
21/06/2014, 17:20
... shown Fig 1b By using this technique, bunches of silicon nanowires can be patterned on the whole region of 8-inch wafer Figure shows the finally formed silicon nanowire pattern after the removal ... using BF2 with the dose of 1015 cm-2 The extracted electrical conductivity of 30 nm p-leg (rp) is 396 X-1 cm-1, and the corresponding doping concentration is around 4.0 1019 cm-3 [11] The 1000 500 ... conductivities with the decrease in width is due to the finite line width effect Figure shows the measured output voltage as a function of temperature difference between cold and hot region The cold region...
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Báo cáo hóa học: " Source Depth Estimation Using a Horizontal Array by Matched-Mode Processing in the Frequency-Wavenumber Domain" pot
Ngày tải lên :
22/06/2014, 23:20
... the estimation of the mode amplitudes at the source These phenomena will not affect the results of the proposed method as the theoretical mode amplitudes will be extracted by the same method 3.2 ... in maximizing the contrast function defined by G = 10 log10 modes nm cmsimu − cmreal (8) with nm the number of modes Then the estimated source depth is given by the depth maximizing the contrast ... In the case of a long HLA, the expression (4) remains a valid approximation of the f − k transform The energy is located on the dispersion curves (kr = krm ) of the modes At each frequency, the...
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Báo cáo khoa học: " The inhibition of assembly of HIV-1 virus-like particles by 3-O-(3'''',3''''-dimethylsuccinyl) betulinic acid (DSB) is counteracted by Vif and requires its Zinc-binding domain" pdf
Ngày tải lên :
12/08/2014, 04:21
... response, and their possible role in modulating the degree of susceptibility to DSB of the VLP assembly process Among the viral candidates, we analyzed EnvGp160, the precursor to the envelope ... This suggested that the DSB negative effect on the VLP assembly process might be modulated by factors depending on the cellular or/and viral context We therefore investigated on the possible influence ... Vifwt, the VLP assembly and budding process mimicked the MVB budding and exocytic pathway used by MA polybasic mutants in HeLa and T cells The hypothesis formulated above implied that the intravesicular...
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Báo cáo y học: " Processing sites in the human immunodeficiency virus type 1 (HIV-1) Gag-Pro-Pol precursor are cleaved by the viral protease at different rates" ppt
Ngày tải lên :
13/08/2014, 09:21
... strategies to assign the cleavage sites that define the ends of the processing products The first we assigned the products based on the known processing sites in Gag-Pro-Pol The size of the pi120 intermediate ... form by the N- and C-terminal domains according to the nomenclature of Leis et al [55] D Proposed pathway for the ordered processing of the HIV-1 Gag-Pro-Pol precursor by protease in trans The ... occurs at the MA/CA cleavage site followed by slower cleavage at the CA/p2 site [9,13] We observe here that the rates of processing of the MA/CA and RH/IN sites are similar as shown by the similar...
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Báo cáo y học: " Defining the buffering process by a triprotic acid without relying on stewart-electroneutrality considerations" pps
Ngày tải lên :
13/08/2014, 16:20
... to test the accuracy of our model in defining the buffering processes by other triprotic acids Potential Sources of Error In calculating the predicted equilibrium pH, the value of the thermodynamic ... and the sum of the concentrations of H+ being buffered by each of the individual proton acceptor sites Theoretically, our formula is also valid for defining the buffering of excess H+ by other ... solution are prevented by the process of H + buffering The equilibrium pH of a Na2HPO4-containing aqueous solution is therefore determined by the buffering of excess H+ by the various phosphate acceptor...
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Strategic environmental assessments may be used to compare different energy scenarios, and a more sustainable power plan can be developed by incorporating the wider impacts considered during the assessment process
Ngày tải lên :
08/09/2015, 23:32
... in the power planning process, and how the capacity of national governments and stakeholders in the power planning process can be strengthened The second volume describes the application of the ... Cambodia, the Lao PDR, and CSG Exports from Viet Nam to the Lao PDR represent flows into the southern part of the Lao PDR; at the same time, Viet Nam is importing from the northern part of the Lao ... the SEA involves projecting the development of installed capacity and generation by fuel type across the GMS to 2025 on the basis of existing PDPs in the region (the “current PDP” scenario) The...
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A study on the roller compaction of undulated flakes by real time process monitoring of compaction and cone milling of flakes
Ngày tải lên :
09/09/2015, 18:58
... enlargement Therefore, tableting properties of these granules were determined by size and surface properties of the granules but not by those of the original MCC particles On the other hand, brittle ... into the narrow space between the two counter rotating rolls where the feed powder is subjected to great pressure As the pressure goes up further, the particles deform, fragment and bond together ... controls the consistency and evenness of the powder feed between two counter-rotating rolls and thereby determines the quality of flakes The feeder can be either a gravity feeder or a force feeder The...
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