peroxoniobium mediated route toward the low temperature synthesis of alkali metal niobates free from organics and chlorides
Báo cáo hóa học: " Low-temperature synthesis of CuO-interlaced nanodiscs for lithium ion battery electrodes" potx
... the successful low- temperature synthesis of phase-pure 2-D CuO-interlaced nanodiscs was demonstrated using simple dehydrogenation of 1-D Cu(OH)2 nanowires at 60°C in solution The details of the ... understand the growth mechanism of the above CuO-interlaced nanodisc structures, temperature- and time-dependent experiments were carried out Figure shows the series of typical FESEM images of samples ... Page of by the MWCNT phase From a comparison of the weight loss between pure CuO and CuO/MWCNT composites using a thermogravimetric analyzer (TGA), the incorporated amount of MWCNT in the composites...
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Báo cáo hóa học: " Microwave assisted low temperature synthesis of MnZn ferrite nanoparticles" pptx
... property and molecular dipole moment The microwave heating can enable to heat homogeneously both the core and the surface of materials because of the microwave energy transfers to the thermal ... 4) The formation of ferrite phase within short time indicates the advantage of microwave heating When the microwave is applied in the system, microwave induces the rotation and migration of materials ... to the peaks intensity of XRD patterns, crystalline of synthesized nanoparticles was improved Figure shows XRD patterns of synthesized powders using conventional heating In the XRD pattern of the...
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Báo cáo khoa học: Post-translational modifications in the active site region of methyl-coenzyme M reductase from methanogenic and methanotrophic archaea potx
... of the Methanopyrus kandleri enzyme, it was not Attempts to obtain diffracting crystals of MCR II from Methanothermobacter marburgensis and of the MCR from the other methanogens mentioned below ... described for the sulfuration of the C-terminal glycine in ThiS and MoaD, involved in thiamine biosynthesis and molybdopterin biosynthesis, respectively, and for the sulfuration of uridine in ... or 2-methylglutamine The methylated histidine (H257) was found in the a-subunit of MCRs from all methanogenic archaea and of the two MCRs from the methanotrophic archaea of the FEBS Journal 274...
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Báo cáo hóa học: " Low Temperature Growth of In2O3 and InN Nanocrystals on Si(111) via Chemical Vapour Deposition Based on the Sublimation of NH4Cl in In" pdf
... decomposition of NH4Cl enhances the porosity of the Al melt thereby promoting the transfer of Al into the gas stream On the other hand, the reaction of NH4Cl and Al leads to the formation of AlCl3 ... uniform and the density of the dendrites was dependent on the amount of In and the distance of the silicon from the In The In2O3 NCs grown at TG = 1000 °C on silicon exhibited clear peaks in the ... flow of N2:NH3 it leads to the formation of AlN around the source of Al which in turn inhibits the transfer of Al into the gas stream and consequently the growth of AlN At high temperatures the...
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Báo cáo y học: "Low temperature tolerance of human embryonic stem cells"
... to the initial number of cells before exposure to low temperature, a 6-well culture dish with the same 125 density of hESC colonies was subjected to the MTT assay on the same day that the other ... obtained for the unexposed control prior to exposing the rest of the culture dishes to low temperature (see Table 1) Table The majority of hESC survived after prolonged durations (24h and 48h) of exposure ... differentiated, and Grade C which was mostly differentiated Assessment of chromosomal normality of hESC after exposure to low temperature The chromosomes of hESC upon exposure to low temperature (25oC and...
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Tài liệu Báo cáo Y học: Dinucleoside polyphosphates stimulate the primer independent synthesis of poly(A) catalyzed by yeast poly(A) polymerase ppt
... independent synthesis of poly(A) In order to understand why dinucleoside polyphosphates activated the primer independent synthesis of poly(A), the effect of 0.01 mM Gp4G or Ap4A on the synthesis of poly(A) ... addition, the chromatographic pattern of the radioactive synthesized products changed in the presence of Gp4G (see below) From these results, it seemed of interest to explore the effect of diguanosine ... HPLC From these results (Figs and 2), it can be concluded that poly(A) was synthesized from ATP, in the absence of primer, and that Gp2G, Gp3G, and Gp4G stimulated that synthesis Stimulation of...
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Báo cáo hóa học: " Self-propagating high-temperature synthesis of nano-TiCx particles with different shapes by using carbon nano-tube as C source" doc
... during the SHS in the Me (Cu, Al, and Fe)-TiCNT systems with the high contents of the Me incorporation The morphologies of the TiCx particles formed in these systems were investigated, and the mechanism ... Page of Figure XRD patterns of SHS products and the variation in the maximum combustion temperature (a) XRD patterns of the SHS products and (b) the variation in the maximum combustion temperature ... meaningful to the discussion in the following paragraphs on the mechanism of the TiCx shape variation with the different kinds of the Me addition Figure gives the TEM images of the TiCx particles...
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Báo cáo hóa học: " Low-temperature fabrication of layered selforganized Ge clusters by RF-sputtering" potx
... the size distribution is a consequence of the regular ordering of the QDs [12] In the GISAXS map of the film annealed at 700°C, a rearrangement of the Bragg spots’ positions is visible From the ... loss of Ge atoms from the Al O film during thermal treatments, because of the volatilization of Ge monooxide (GeO) [18] In the present case, the loss of Ge is partial, since RBS spectra of the ... reveal the presence of Ge atoms in the layers near the interface filmsubstrate The lack of the presence of for any Raman feature can be interpreted as a consequence of the decrease in the amount of...
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low temperature catalytic ethanol conversion over ceria-supported platinum, rhodium, and tin-based nanoparticle systems
... reforming, and the thermodynamics of these reactions are presented in the remainder of this section 1.1.1 Steam Reforming The most desirable form of the steam reforming (SR) reaction is endothermic and ... reforming of ethanol could improve reforming efficiency while removing the challenges of hydrogen gas storage from the fuel cell system The objective of this section of the thesis is to delineate the ... refers to the five-member adsorbed complex formed by the insertion of a metal dimer into one of the C-O bonds of an ethylene oxide molecule (C2H4O) The stability of these structures favors the breaking...
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development of methodology for the palladium-catalysed synthesis of oxygen-containing heterocycles
... Proposed synthesis of benzylic alcohol 2.27 The first step in the synthesis of benzylic alcohol 2.27 is the Wittig olefination of o-bromoacetophenone (Scheme 2.10) Following the procedure of Waser and ... Scheme 1.25: Pd-catalysed synthesis of benzofurans 1.105 from aryl iodides 1.104 Stoltz and co-workers developed an oxidative synthesis of benzofuran and dihydrobenzofuran derivatives, proceeding ... the deprotonation of diester 2.14 at room temperature instead of at °C and increasing the number of equivalents of dibromoethane used from to gave complete conversion and improved the yield of...
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The synthesis of three dimensional haptic textures geometry, control, and psychophysics
... confirms, for the first time, the existence of two distinct classes of artifacts, arising from the lack of passivity and from the energy profile of the texture algorithm • A novel formulation of a friction ... [142] The resolution of the device (5–10 µm) and the bandwidth of 120 Hz (−3 dB) offer a level of performance adequate for the texture rendering; nevertheless, guaranteeing the passivity of the ... Control Theory and Haptics 15 The use of passivity is widespread in the haptic community because it allows the decoupling between the analysis of the mechanical haptic system and the properties of the...
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Investigation on low temperature pyrolysis of pentachlorophenol contaminated soil
... radicals formation in the presence of oxygen and then their dimerization In the formation of PCDD/Fs via De Novo synthesis, on the other hand, carbon can be oxidized to form CO or CO2 and generate dioxins ... faster than from de novo synthesis The formation of intermediates or their condensation to PCDD/Fs and ratios of PCDD to PCDF is highly dependent on temperature, the oxygen concentration and the substitution ... to evaluate the capability of PCP removal from soil under 200-400oC conditions Therefore, the first part of the dissertation is to investigate: - Effect of temperature, time and flow rate on...
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The Levy Institute Measure of Economic Well-Being, Great Britain, 1995 and 2005 docx
... overview of the estimation process is provided in table The details are discussed in the subsequent sections and the appendices COMPONENTS OF LIMEW The LIMEW is constructed as the sum of the following ... assigned to the distance function according to the size and ranking of the coefficients of strata variables The quality of match is evaluated by comparing the marginal and joint distributions of the ... amount of debt, and, if no amount is given, whether the total amount of debt exceeds a series of amounts.8 Further questions ask whether any of the debt is held jointly with another individual and...
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Best Practices in Social Media / Summary of Findings from the Second Comprehensive Study of Social Media Use by Schools, Colleges and Universities docx
... was, from what we could tell, one of the first studies conducted of the institutions themselves about how they use social media Our overarching goal of this research is to create knowledge and ... with the use of social media Another unit manages all of our social media activities, without any input from us Another unit manages all of our social media activities, with input from us We handle ... any of the below areas that could help others, please note them Area Deployment of a specific social media tool or platform: Implementation of a specific evaluation approach: Application of social...
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synthesis of hematite (r-fe2o3) nanorods diameter-size and shape effects on their
... but also the first report on the synthesis of porous R-Fe2O3 nanorods with diameters of
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Báo cáo khoa học: NMR studies on the interaction of sugars with the C-terminal domain of an R-type lectin from the earthworm Lumbricus terrestris pot
... chemical exchange of the a sugar-binding site upon the addition of lactose or b-Me-Gal was in the slow exchange regime The STD effect for sugar arose from the contribution of both the a and c sugar-binding ... region from H2 to H6a ⁄ H6b, particularly H4, and barely interacts with the region of H1 and the O-methyl group The crystal structure of EW29Ch with lactose showed that the O2, O3 and O4 atoms of the ... NH of Trp33 disappeared The broadened signals sharpened at the position of the second signal at [sugar] ⁄ [EW29Ch] = 3–4 and the resonance signal of the side-chain NH of Trp33 appeared at the...
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Báo cáo khoa học: The pivotal regulator GlnB of Escherichia coli is engaged in subtle and context-dependent control potx
... Hence neither glnB nor GlnB control the deadenylylation rate when cells are pregrown in the absence of ammonia; and nor does the sum of GlnK and GlnB Therefore, the conclusion of a lack of (ultra)sensitivity ... deadenylylation as a function of the sum concentration of GlnB and GlnK (PII*) and of the induction of glnB expression With respect to the metabolic adaptations, that of the concentration of 2-oxoglutarate ... the puzzle of a functional explanation for the existence of GlnB: why should control by PII* be absent altogether, and what then is the function of the cascade and of its pivot GlnB? The problem...
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Báo cáo Y học: The cold-active lipase of Pseudomonas fragi Heterologous expression, biochemical characterization and molecular modeling pdf
... (A213–N239) and is coordinated to the Ca2+ ion In PAL the corresponding loop (S202– F207) is shorter and the water molecule in the coordination sphere of the metal is substituted by the OH group of T205 ... significant improvements in the fraction of soluble lipase The apparent ineffectiveness of foldase together with the lack of a signal peptide at the N-terminal suggests the hypothesis that PFL might ... coexpression of rPFL with the foldase of P aeruginosa did Fig Alignment of the PFL sequence with Pseudomonas lipases of known three-dimensional structure The sequence is identical to that of the lipase from...
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facile synthesis of zno micro-nanostructures with controllable morphology and
... changing from “wire” to “flower”, “urchin” and “wire” with the addition of different amounts of ammonia Due to the different surface areas of the various morphologies, the order of intensity of the ... structure Among these ZnO micro-nanostructures, the reflectance of the denser urchin-like ZnO is the lowest at approximately 18% in the visible region The reflectance of the flower structure is the highest ... structure Among the foregoing, the reflectivity of the denser urchin-like structure was the lowest at 18% When the obtained ZnO micro-nanostructures were used as the anode of the DSSC, the photoelectrochemical...
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báo cáo hóa học: " The health-related quality of life in rheumatoid arthritis, ankylosing spondylitis, and psoriatic arthritis: a comparison with a selected sample of healthy people" potx
... the patients from the mean scores of the general population, followed by the division of these deviations by each scale's standard deviation in the general population The standardized s-score ... representative of the practices in Marche in terms of size of practice, geographical location, and socio-economic status of those attending The sample for the survey was selected randomly so that there ... equal numbers from each of the age-sex bands (five age-groups ranging from 18–34 years to 75 years and over) and was weighted to ensure an equal representation of patients in each of the subgroups...
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