determination of hydrate formation temperature using vapor solid constants

... (Eur J Biochem 271) The stability of a non-B DNA conformation (e.g DNA hairpin structure) can be characterized by its melting temperature (Tm) Determination of Tm is essential for many nucleic ... measuring a single type of DNA hairpin’s reopening temperature embedded in a DNA molecule has been developed in this work The method utilizes the knowledge of DNA hairpin structure formation in vitro ... containing mM of each dNTP, 10 mM ATP, 100 mM Tris/ Cl (pH 8.0), 50 mM MgCl2, 20 mM dithiothreitol, one unit of T4 DNA polymerase and three units of T4 DNA ligase, and incubating at different temperatures...

Ngày tải lên: 23/03/2014, 13:20

... beginning of each recording A) 1: of dark adaptation time; 2: 10 of dark adaptation time; 3: 20 of dark adaptation time B) 4: 30 of dark adaptation time; 5: 40 of dark adaptation time; 6: 50 of dark ... 10 of dark adaptation, and the curve approached a plateau after this time (Figs & 6) Implicit times of a-wave The implicit times of the a-wave remained relatively unchanged over the course of ... response The amplitude of the a-wave was measured from the baseline to the peak of the first negative deflection, whereas the amplitude of the b-wave was measured from the peak of the a-wave to the...

Ngày tải lên: 07/08/2014, 20:23

... land surface temperature 2.1.1.1 The concept and the role of surface temperature Temperature is an essential atmospheric variable which is a transformation of the kinetic energy of the particles ... The data is used for detection of surface temperature i change during 1996-2014 and estimation of the increased rate of temperature rise to understand the intensity of global warming in the present ... disease… Application of GIS to the study of urban surface temperature is one of the latest applications of GIS Urban climate studies have long been concerned about the magnitude of the difference...

Ngày tải lên: 28/04/2016, 13:45

... CPΠ-68-01 Proceeding of the 14th Conference, University of Mining and Geology, Hanoi, 17th November (2004) 50 [7] Ha Van Tan (Chief Ed.), Archaeology of Viet Nam, The Publisher of Social Science, ... environmental gamma dose rate by using the radiometer of the type CΡΠ-68-01 (Figure 1) The instrument used in this experiment is CΡΠ68-01 (USSR) A cylinder-shape detector NaJ(Tl) of the size 30mm x 30mm, ... beta dose evaluation is, the more reliable is the technique of thermoluminecence dating [5,6] Fig the measurement of the gamma dose rate using the radiometer CΡΠ-68-01 This paper presents a new...

Ngày tải lên: 13/02/2014, 04:20

... Ir Number of observations Number of unique reections Temperature (K) Rfactor (%) Rfree (%) Rmsd bond lengths (A) Rmsd bond angles () Number of all atoms Number of protein atoms Number of waters ... and gather information on the reaction mechanisms, such as the itinerary of the sugar ring conformations along the catalytic pathway [24,25,29,30] or the inversion of the roles of the catalytic ... the absence of the dimeric form of CTX, as the heterodimer was present in the case of TRX II Observation of noncovalent proteininhibitor complexes The formation of noncovalent proteininhibitor...

Ngày tải lên: 07/03/2014, 17:20

... acetone at a concentration of 500 µg/mL of each This solution is used in the preparation of the calibration solutions Dilute a portion of this solution by 10 to a concentration of 50 µg/mL and use this ... abundance of the quantitation ion of the analyte Ais = integrated abundance of the quantitation ion internal standard Qx = quantity of analyte injected in ng or concentration units Qis = quantity of ... concentration of analyte or surrogate in µg/L in the water sample Ax = integrated abundance of the quantitation ion of the analyte in the sample Ais = integrated abundance of the quantitation ion of the...

Ngày tải lên: 22/03/2014, 14:20

... this study, the detailed investigations of the peculiarities of the formation of the arrays of gold islands in the course of high temperature anneals of Si wafers with Klimovskaya et al Nanoscale ... disjoining of gold films and the formation of the arrays of separated gold islands This process is strongly dependent on the quality of the surface of Si wafers The results on gold island formation ... subsequently, the process of the formation of catalytically active nanoislands for the growth of Si wire-like crystals Fast anneals at high temperatures of the structures of Si substrates with gold...

Ngày tải lên: 21/06/2014, 05:20

... argon At the center of the tube furnace, metal zinc vaporized and reacted with vapor H2O to generate ZnO vapor Then the ZnO vapor deposited on the substrates and nucleation of wurtzite structure ... the growth of the ZnO straight nanowires reported here occurs via a vapor solid (VS) mechanism [17] The vapor H2O was carried into the quartz tube and transported downstream by the flow of argon ... nanometers Most of the nanowires have length of several to tens microns The nanowires are straight and most of them show smooth surface and no ramification over their length The vapor liquid solid (VLS)...

Ngày tải lên: 22/06/2014, 01:20

... simultaneous determination of Co(II) and Ni(II) The aim in this study was the simultaneous determination of Pb(II) and Cd(II) by uv-visible spectrophotometry in some complex mixture using 4-(2pyridylazo)-resorcinol ... for treatment of the data The structure of BP algorithm comprised of three layers, input, output and hidden layer Figure shows the architecture of the ANN The input layer consists of seven neurons, ... is a popular reagent in spectrophotometric determination of different metal ion such as Pb(II) and Cd(II) using ANN EXPERIMENTAL All chemicals were of analytical reagent grade and deionized water...

Ngày tải lên: 07/08/2014, 14:20

... g) (1) Determination of OSB fiber orientation (4) Find the location of the edges using the following equation for non-maximal suppression: ∂ - G × g = (2) ∂n (5) Compute the magnitude of the ... values of the standard deviation (2) Convolve an image g with a Gaussian filter of standard deviation σ Figure The flow chart of the computer program (3) Estimate local edge normal directions n using ... on it The Canny method finds edges by looking for local maxima of the gradient of g The gradient is calculated using the derivative of a Gaussian filter The method uses two thresholds, to detect...

Ngày tải lên: 08/08/2014, 00:22

... followed by expansion of each GTV to account for microscopic disease The ITV is then determined to be the envelope of motion of the CTV In order to make the determination of the ITV more efficient, ... patient-specific information about tumor position, shape, and size at different phases of the respiratory cycle Although using 4-D CT data provides a reliable estimate of the extent of tumor motion ... the MIP of the 4-D CT data set and then modifying these contours using visual verification of coverage in each phase of the 4-D CT data set to produce IGTVMIP-Modified Visual verification of coverage...

Ngày tải lên: 09/08/2014, 09:22

... smoothed using a × × averaging of voxels (downsampling) Using the ‘Create Surface’ function of Amira, a surface was derived from the isosurface, which allowed measurement of the surface area of the ... composed of similarly sized primary subunits The size of the subunits of the aggregates of NM-200 is relatively constant: they measure approximately 20 nm in diameter The size of the subunits of different ... To evaluate the influence of missing wedge artifacts on the reconstruction and on the precision of the estimation of the surface area and volume of such NM, ET analyses of spherical colloidal gold...

Ngày tải lên: 11/08/2014, 00:23

... respectively Results were dichotomized on the basis of being above or below the limit of quantification of the ELISA (cut-off anti-MCV 40 U/ml, cut-off RF-IgG 30 U/ml) for RF-IgG (Table 2) The positive ... results led to an overall sensitivity of 69.3% for detection of anti MCV antibodies and of 55.6% for RF-IgG as well as to a specificity of 99.7% for MCV and of 97.2% for RFIgG Overall, correlation ... anti-human IgG During development of the assay, the amount of goldconjugated anti-human IgG, the number of conjugated colloidal gold particles, and the amount of anti-human IgG were empirically...

Ngày tải lên: 12/08/2014, 14:22

... (possibly representing: a = multiple of the levels of TMPKmyc required to salvage a mole of dTMP during the exponential phase of M.tb growth; b = factor of levels of TMKmyc required to phosphorylate ... valid for the purpose of reducing time-lines to the reading of TB cultures What may be affected is drug resistance profiling, since this requires measurement of the levels of TMK in the culture ... Arithmetical derivations of the systems biology of the tubercle bacillus growth curve (a) Theoretical partition of the tubercle bacillus cell cycle We partitioned a "model" cell cycle of the tubercle...

Ngày tải lên: 13/08/2014, 16:21

... kinetic of hydrate formation; the phase transformation between hydrate forms in suspension of solid hydrate in saturated aqueous solution as well as the dehydration in suspension of hydrate in ... anhydrous hemi hydrate mono hydrate dihydrate hemi-penta hydrate penta hydrate Figure I.1 The molecule structure of hydrate of monosodium Risedronate So, to understand the mechanism of habit modification, ... stability of a hydrate relative to the anhydrate (or lower hydrate) depends upon the activity of water in the vapor phase, or the partial vapor pressure or relative humidity (the ratio of the vapor...

Ngày tải lên: 13/11/2014, 08:42

... description of the surface acid properties of a solid must involve the determination of the acid strength of the sites, their density (number of acid centers per unit surface area of the solid) , ... combination of the information obtainable from two o r more of them can often be the only way to give a complete picture of the surface acid properties of the solid under examination 11 DETERMINATION OF ... ACIDITY OF SOLID CATALYSTS In the case of black o r dark-colored solids, when the observation of the indicators color is impossible o r very difficult, a small amount of a white solid of known...

Ngày tải lên: 29/07/2015, 02:27

... used for the determination of procainamide hydrochloride using ceric sulfate (Sultan and Suliman, 1993), the reaction takes place in the presence of sulfuric acid and the absorbance of product ... for the determination of many organic and inorganic compounds The most important application of periodate is that of malaprade reaction (Malaprade, 1926) Various spectrophotometric methods of analysis ... hydrochloride and the formation of p-aminobenzoic acid When the mixture was heated and Spectrophotometric determination 611 Figure (a) The spectrum of procainamide hydrochloride against a blank of double...

Ngày tải lên: 02/09/2015, 13:47

... and the effects of these EDCs on humans and wildlife Endocrine disruption mechanisms include antagonism of hormones and inhibition of the synthesis and metabolism of hormones Many of the known EDCs ... techniques for wide range of EDCs in seawater, rainwater and blood plasma samples The third part of thesis deals with the analysis of EDCs in solid matrices such as marine sediments using microwave-assisted ... Sample Analysis PART III Chapter 3: Analysis of Solid Samples using Microextraction Combined with GC/MS Analysis of Singapore’s Coastal Sediments using Microwave-assisted 3.1 107 Digestion Coupled...

Ngày tải lên: 16/09/2015, 17:12

... eradication of planktonic residues but are not effective in eliminating micro-clusters disrupted from biofilms that may be the cause of recurrence after an indefinite period of time Fragments of biofilms ... populations are often missed by conventional culture The problem of diagnosis markedly increases taking into account the issue of bacterial phenotypes inside biofilms Sonication of explanted devices ... Comparison of Revision of the Acetabular Component without Cement A Concise Follow-up, biofilm-associated cell survival following in vitro exposure of meticil- at Twenty to Twenty-four Years, of a...

Ngày tải lên: 26/10/2012, 09:53

... product To summarize, FCP offers the possibility of assisting the demands of marketing and product development teams who require information on target consumer’s perception of products, rather than ... lx) First of all, consumers were briefed on the concept of the methodology and the procedure The aim of this was to allow for development of the vocabulary to describe the four types of dry-cured ... carried out using XLSTAT software (Addinsoft, France) 2.4.2 Quantitative descriptive data analysis Data from the Quantitative Descriptive Analysis was analysed by means of the ANOVA test using the...

Ngày tải lên: 03/04/2013, 21:07