comparison of the methods for the determination of surface acidity of solid catalysts

... out of the use of this material Downloaded by [McGill University Library] at 07:35 15 December 2012 Comparison of the Methods for the Determination of Surface Acidity of Solid Catalysts LUCIO FORNI ... the quantity of exchanged deuterium and from the quantity of water formed during the reaction The fraction of the various forms of hydrogen can be determined from the ratios of the areas of the ... made of frequency shifts of the OH group band at various concentrations of the alcohol in the solvent, in the presence of the solid, with the known acidity constants of the alcohols From such a comparison...

Comparison of Methods for the Extraction of Bioflocculants from Activated Sludge

... an effort to develop an effective extraction method for bioflocculants from the microbial cell surface Materials and Methods Activated sludge samples Activated sludge samples were collected from ... was the most effective extraction method for activated sludge However, cell disruption is not effective for the isolation of bioflocculants Thus, NaOH extraction was the most effective method for ... polymer extraction methods (steaming extraction, NaOH extraction, SDS extraction, and washing extraction) were compared to develop an effective extraction method for bioflocculants from activated sludge...

METHODS FOR DETERMINATION AND APPROXIMATION OF THE DOMAIN OF ATTRACTION IN THE CASE OF AUTONOMOUS pdf

... procedures are used for the approximation of the Da (0) with domains having a simpler shape For example, in the case of [4, Theorem 4.20, page 170] the domain which approximates the Da (0) is deﬁned ... k =0 The Lyapunov function V can be found theoretically using relation (1.5) In the followings, we will shortly present the procedure of determination and approximation of the domain of attraction ... [3] E Kaslik, A M Balint, A Grigis, and St Balint, An extension of the characterization of the domain of attraction of an asymptotically stable ﬁxed point in the case of a nonlinear discrete dynamical...

Báo cáo khoa học: "Comparison of Diagnostic Methods for the Detection of Parasites in Fish" pdf

... Comparison of Diagnostic Methods for the Detection of Parasites in Fish and disadvantages, depending on the purpose and target of study For parasitological investigation, the classical methods (the ... reaction of 50 µl volume (25µl of master mix, Comparison of Diagnostic Methods for the Detection of Parasites in Fish 2µl of each primer, or µl of template and 18 or 20 µl of water) - Polymerase Chain ... microscope Stretching of these metacercariae was done by hot formalin for two minutes Then, they were kept in Eppendorf tubes with neutral formalin (4%) Diagnosis of parasitic infections * Diagnosis...

Báo cáo khoa học: "A comparison of five indirect methods for characterizing the light environment in a tropical fores" pptx

... to assess temporal and spatial relative variations The relationship between a variable measured at the sampling point and the same variable measured with a small spatial displacement, everything ... matrix between the 15 light variables on transects The first variables are “openness” variables, whereas the remaining variables are “foliage” variables Shaded areas indicate the couples of variables ... merits of five methods for measuring light availability: the LAI-2000 Plant Canopy Analyzer, an empirical LAI-metre, a spherical densiometre, diazo papers and hemispherical photographs The goals of...

Báo cáo khoa học: " Comparison of two sap flow methods for the estimation of tree transpiration" ppt

... functioning of each method was not deteriorated by the other The relationship obtained with the comparison of the two methods over the whole period (n 589) is presented in figure The slope of the regression ... 2300 and 0400 hours The sap flow rate (F) is calculated lows [2, 10]: as fol- where Cp is the heat capacity of the xylem sap and dT the temperature increase of the sap through the heater This apparatus ... use the two methods in a complementary way and also to compare the results from the same stem In this note, a methods on the of the two trunk has been comparison same reported MATERIALS AND METHODS...

Báo cáo y học: "Improved methods for the mathematically controlled comparison of biochemical systems" docx

... Biosynthetic pathways similar to that illustrated were compared using the method of mathematically controlled comparison by Alves and Savageau [13] These biosynthetic pathways differ only in the ... determine the local stability of the steady state, the sensitivity of the steady state with respect to parameter changes, and the sensitivity of the steady state with respect to variation in the independent ... reference by forcing the value of the appropriate kinetic order to (Figure 2) S-systems provide a convenient method for the characterization of systemic performance local to the steady state System...

Báo cáo sinh học: "Analysis of the real EADGENE data set: Comparison of methods and guidelines for data normalisation and selection of diﬀerentially expressed genes (Open Access publication)" potx

... estimate of the background intensity, and therefore no further background correction was possible on these data Detection of diﬀerentially expressed genes 637 2.2 Normalisation of the data 2.2.1 Data ... Various comparisons of lists of diﬀerentially expressed genes found by the EADGENE teams were performed We focussed mainly on the comparison of the diﬀerentially expressed genes found between time and ... will be discussed: data quality control, normalisation and statistical methods for the detection of diﬀerentially expressed genes For each of these steps, the techniques used by the workshop participants...

INSTRUMENTAL AND STATISTICAL METHODS FOR THE COMPARISON OF CLASS EVIDENCE

... METHODS FOR THE COMPARISON OF CLASS EVIDENCE A Thesis Submitted to the Faculty of Purdue University by Elisa Anne Liszewski In Partial Fulfillment of the Requirements for the Degree of Master of Science ... 2010 Instrumental and Statistical Methods for the Comparison of Class Evidence Major Professor: John Goodpaster Trace evidence is a major field within forensic science Association of trace evidence ... sum of squared deviations of every point from the mean of the cluster, or by squaring the distance between the cluster means and dividing that by the sum of the reciprocals of the number of points...

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Development of computational methods for the rapid determination of NMR resonance assignment of large proteins

... determination is the spectral assignment procedure This involves sequence-specific resonance assignment of NMR signals and the assignment of NOESY spectra Resonance assignment forms the basis for characterizing ... obtain the assignments of the Cα and CO of the same residue Then, the CO frequency is used to obtain assignments for the HN and 15N of residue (i+1) with the HNCO experiment Finally, the NH and ... applications for solution NMR 1.3.2 TROSY triple -resonance experiments for resonance assignments of large proteins NMR experiments provide a set of unique combinations of neighboring resonance spin...

Báo cáo y học: "Comparison of a Two-Lead, Computerized, Resting ECG Signal Analysis Device, the MultiFunction-CardioGramsm or MCG (a.k.a. 3DMP), to Quantitative Coronary Angiography for the Detection of Relevant Coronary Artery Stenosis (70%)

... Coronary angiography remains the gold standard for the morphologic diagnosis of CAD and also allows revascularization during the same procedure [12, 13] Coronary angiography is a relatively safe and ... Combined Analysis Total USA Asia Germany female male < 65 years 65+ years Female, < 65 years Female, 65+ years Male, < 65 years Male, 65+ years No Revasc PCI CABG Revasc of any type ROC AUC Odds Ratio ... in this meta -analysis was not to study MCG as a screening device, but instead to focus primarily on its potential as a diagnostic assay for relevant coronary stenosis Resting ECG analysis, including...

Tài liệu Báo cáo khoa học: "Methods for the Qualitative Evaluation of Lexical Association Measures" doc

... qualitative evaluation of lexical association measures, mainly for the following reasons: the instability of precision values obtained from the rst few percent of the data in the SLs; the lack of signicant ... precision values above 50% for the rst 10% of the list, but is outperformed by the t-test afterwards Looking at the rst 40% of the data, there is a big gap between the good measures (t-test, ... identication of between 75% (AdjN) and 80% (PNV) of the TPs (ii) For the rst 40% of the SLs, and lead to the worst results, with outperforming 10% 20% 30% -test 40% 50% 60% 70% 80% 90% 100% part of signicance...

Báo cáo khoa học: A novel metallobridged bis(b-cyclodextrin)s ﬂuorescent probe for the determination of glutathione doc

... of glutathione and glutathione disulde in human plasma and tobacco leaves by capillary electrophoresis with laser-induced uorescence detection Talanta 65, 986990 Svardal AM, Mansoor MA & Ueland ... curve and the regression equation The average recovery test was made using the standard addition method, and the RSD was generally good when obtained from a series of six plasma samples These ... formula C = KS0 S, where K = (standard deviation = 1.36), obtained from a series of 11 reagent blanks, and S is the slope of the standard curve The relative standard deviation was 2.5%, obtained...

Báo cáo khoa học: The structural comparison of the bacterial PepX and human DPP-IV reveals sites for the design of inhibitors of PepX activity pot

... the comparison of the active and speciﬁcity sites of the two X-PDAP enzymes, the bacterial PepX (green) and the human DPP-IV (orange) (B) Superposition of the active and speciﬁcity sites of the ... the carboxyl group of the ligand and the NH2 of Asn470 (equivalent to Asn710 in DPP-IV) Another potential bond can be proposed between the OH atom of Tyr380 and the carbonyl group of the ligand ... structure of PepX from S gordonii c B C D 2055 Sites for the design of inhibitors of PepX activity but this does not seem to be essential for the binding of valine-pyrrolidide in the PepX active...

Review of the Existing Techniques for the Determination of Dry Rubber Content in Natural potx

... presented in this thesis In this thesis, results of our work on the design and development of different instrumentation systems for the rapid determination of Dry Rubber Content in natural rubber ... discussion of the results are included in chapter five of this thesis Finally, in chapter six the summary and general conclusions of the work including scope for doing further work in the area are incorporated ... touching the side of the cylinder The reading on stem is noted The ORC of the latex is obtained by multiplying the reading by three (since two parts of water are added) and dividing by ten The...

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