2development of methods for the determination of sterols in vegetable oils

... 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 corresponding peaks The technique, implying ... the difficulty of determining the exact end point of titration and to the presence of traces of moisture Other disadvantages a r e the impossibility of making determinations in the real working ... The 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...

Ngày tải lên: 29/07/2015, 02:27

... Assignment Using 4D NMR clustering in this thesis The aim of clustering is to accelerate the performance of the program In subsequent steps of constructing spin-systems and modifying established spin-systems ... essential in: (1) the structure determination of proteins, (2) intermolecular interactions, and (3) protein dynamics Firstly, consider the determination of protein structure from NMR data Protein chemical ... proposed in this thesis We have designed a protein resonance assignment strategy consisting of four steps: (1) xi Summary the combination of amino acid spin-systems, (2) the determination of amino...

Ngày tải lên: 04/10/2015, 15:52

... of 95 ml) The A280 to A260 ratio of the UV-absorbing peak indicated it was composed mainly of nucleic acid In the profile of the NaOH-extracted polymer (B), the elution volume (80 ml) of saccharide ... shaking, absorbance at 660 nm (A660) was measured for min, and the relative A660 against the control test was calculated every minute using the following formula: The relative A660 = A660 of flocculating ... Ag-protein stain, the components varied greatly by polymer Several bands demonstrated the same mobility in both stains, suggesting that these bands were complexes of protein and saccharide These included...

Ngày tải lên: 05/09/2013, 09:08

... 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 ... obtain condence intervals for the true precision values of the bestperforming AM (frequency), given our 10% sample The upper and lower bounds of the 95% condence intervals are shown as thin lines ... different from the baseline obtained by random selection In contrast to our expectation stated at the beginning of this section, the performance of and relative to the other AMs is not better for high-frequency...

Ngày tải lên: 20/02/2014, 18:20

... remained constant for at least h Hence, the reaction was left to proceed for 10 min, and the uorescence was then measured at room temperature Inuence of interference The inuence of the main constituents ... concentration of increased, the uorescence intensity of the system also increased slightly We therefore used 2.00 mL of 2.00 ã 10)4 molặL)1 metallobridged bis(bCD)s Inuence of reaction time The effect of ... which inuences the uorescence intensity Therefore, the inuence of the volume of buffer was measured Because the volume of buffer added (1.003.00 mL) had little effect on the uorescence intensity,...

Ngày tải lên: 07/03/2014, 05:20

... 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 ... immersed in the latex and allowed to come to rest without 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 ... formulated in Travancore during 1860s and subsequently in Cochin for the distribution of forest and wasteland for plantation crops were instrumental for the initial growth and expansion'l", In terms of...

Ngày tải lên: 23/03/2014, 21:21

... spins By linearity of the Fourier transform the direct relation between the peak integral and the number of spins of the corresponding chemical group holds for the spectrum of superposed lines ... real, the oscillating imaginary part of the sum in general leads to a small imaginary part of Qn The maximum of the real part of the sum is N times higher than the amplitude of the oscillating ... /: (2.47) For n D N=2 the origin is such that QN=2 is dominated by r/ in the vicinity of the right boundary of the FOV Still for a rather coarse discretization of N D 32 the corresponding sum is...

Ngày tải lên: 29/05/2014, 18:32

... improving the efficiency of troop movement During the 1950s there was a need for an improved understanding of locomotion for the treatment of World War II veterans The classic work at the University of ... skin The movement of the markers is typically used to infer the underlying relative movement between two adjacent segments (e.g knee joint) with the goal of precisely defining the movement of the ... optimal weighting of the markers according to their degree of deformation Another extension of the basic PCT corrects for error induced by segment deformation associated with skin marker movement...

Ngày tải lên: 19/06/2014, 10:20

... probable that there is only one type of infectious and replicating HCV The variety of HCV RNA in patients could result from changes induced in the plasma/sera, including the production of noninfectious ... is, therefore, well suited for studying the biology and immunology of HCV infections It is also an excellent system for testing the efficacy of candidate drugs and advancing ideas for vaccines Methods ... which explains both the low titer of infectious virus in patients and in cell culture and the long incubation period before the development of an acute disease The high titer of viral RNA in plasma/...

Ngày tải lên: 20/06/2014, 02:20

... assistance in providing information regarding the cocoa industry in Vietnam and in the establishment of solar driers and fermenting boxes at their demonstration farm sites in Ben Tre Province HARVESTING ... darken in colour during drying as the majority of browning reactions will occur during this process DRYING OF COCOA Drying of cocoa is an important step in cocoa processing as some of the reactions ... on the percentage of fully brown beans in the cut test 6: The effect of spreading of beans for two hours, prior to placement in boxes, on fermentation temperatures 7: The effect of spreading of...

Ngày tải lên: 21/06/2014, 06:20

... we obtain the existence of a mapping c : G → Y such that the following hold i c is a fixed point of J, that is, c x F x, c η x ∀x ∈ G , 4.13 The mapping c is the unique fixed point of J in the set ... Proceedings of the National Academy of Sciences of the United States of America, vol 27, no 4, pp 222–224, 1941 T Aoki, “On the stability of the linear transformation in Banach spaces,” Journal of the ... also the recent articles of Forti 16, 17 , for supplementary details On the other hand, in 18–25 , a fixed point method was proposed, by showing that many theorems concerning the stability of Cauchy,...

Ngày tải lên: 22/06/2014, 06:20

... around the pins (Note 4) NOTE 4 The purpose of the minimal blotting of the pins and no blotting of the bars is to avoid drying and shrinkage of the bars It has been observed that if the pins are ... the dial gage setting of the measuring device by use of the reference bar at least at the beginning and end of the readings made within a half day when the apparatus is kept in a room maintained ... measuring instrument while the comparator reading is being taken Record the minimum reading of the dial if the rotation causes a change in the dial reading Place specimens in the instrument with the...

Ngày tải lên: 10/07/2014, 23:20

... conversion In- line distillation methods are used for the determinations of ammonia, fluoride, cyanide, phenols, and other volatile compounds In- line digestion can be used for the determination of total ... buffer solutions in the pH range of to The error resulting from inaccurate pH measurements grows with an increase in total alkalinity For example, an inaccuracy of 0.1 in the pH determination causes ... Analytical methods for the determination of cyanates in plating wastes Plating 39:381 23 GARDNER, D.C 1956 The colorimetric determination of cyanates in effluents Plating 43:743 24 Procedures for Analyzing...

Ngày tải lên: 29/07/2014, 18:58

... to margin; short spines often present around margin (valve view) 31b Area of prominent radial markings, in valve view, limited to Cyclotella approximately outer half of circle, marginal spines ... Standard Methods for the Examination of Water and Wastewater Agency, National Environmental Research Center, Cincinnati, Ohio PATRICK, R & C.W REIMER 1975 The Diatoms of the United States Exclusive of ... Water Environment Federation Standard Methods for the Examination of Water and Wastewater Algae General TAYLOR, W.R 1957 Marine Algae of the Northeastern Coast of North America, 2nd ed Univ Michigan...

Ngày tải lên: 29/07/2014, 18:58

... of Water and Wastewater Dinobryon © Copyright 1999 by American Public Health Association, American Water Works Association, Water Environment Federation Standard Methods for the Examination of ... Methods for the Examination of Water and Wastewater Pandorina © Copyright 1999 by American Public Health Association, American Water Works Association, Water Environment Federation Standard Methods ... for the Examination of Water and Wastewater Peridinium © Copyright 1999 by American Public Health Association, American Water Works Association, Water Environment Federation Standard Methods for...

Ngày tải lên: 29/07/2014, 18:58

... atomic weights of many elements are not invariant but depend on the origin and treatment of the material The standard values of Ar(E) and the uncertainties (in parentheses, following the © Copyright ... educational and technical information programs, AWWA promotes the improvement of the quality and quantity of the drinking water supply Contact information: AWWA 6666 West Quincy Avenue Denver, CO ... precipitate by keeping solution at the boiling point for a few hours in a hot water bath or by letting particles settle for at least 48 h in an alkali-resistant container (wax-lined or polyethylene)...

Ngày tải lên: 29/07/2014, 18:58

... 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 ... 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 ... saline pH 7.0) The internal organs were exposed after a vertical incision was made from the anal opening to the Before any dissection, the exterior of the fish was observed under the dissecting...

Ngày tải lên: 06/08/2014, 19:20

... stopping of the reaction with M HCl solution Laying rates The laying rate in each experimental group was calculated by dividing the total number of eggs by accumulated number of hens during days of ... was denatured in sample buffer by incubation at 100℃ for The 20 ml of the sample were applied in 12% polyacrylamide gel at 80 V for hr Protein bands were visualized by staining the gel with 0.1%(w/v) ... was lower than in the other groups in case of using IROMP as a coating antigen (Fig 5) Earliest immune response in egg yolks was observed in group (Fig 5) There was no difference in the antibody...

Ngày tải lên: 07/08/2014, 15:20

... in figure Respective 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 ... transpiration in the morning This study confirmed the possibility of experiment one or the other method in accordance with the objectives, and the equipment The major problem is still the choice of samples ... required for an accurate estimation of transpiration The combination of the two methods seems possible in the same experiment The heat balance for the small trunks, and transpiration calculation for...

Ngày tải lên: 08/08/2014, 23:22

... estimator of the QTL variance Whether the bias on the size of the biasing factor not, it depends in the range of realistic values for O t shows the value ofk as a function of for different values of ... (1992) found that the use of fully informative matings can increase the power of the Haseman-Elston test for a given number of genotypings Consequently, only these matings were used in the calculations ... number of genotypings If many markers are to be examined, the parents will only be informative for a fraction of the markers Since the major costs in the given design arise from the typing of progeny,...

Ngày tải lên: 09/08/2014, 18:21