in the analysis of distributed feedback lasers
Báo cáo khoa học: "PARSING VS. TEXT PROCESSING IN THE ANALYSIS OF DICTIONARY DEFINITIONS" pot
Ngày tải lên :
08/03/2014, 18:20
... passives inverted, inflected forms analyzed, and other modifications of the kind often brought under the rubric of "transformations." The LSP can this sort of thing very welL The defining words ... most of the duplicate relational triples Finding relational triples by text processing As the performance statistics above show, parsing is painfully slow For the simple business of finding and ... treat it as an independent piece of code Having done this, we were able to add new relations in the com~e of developing the grammar Approximately a third of the definitions in the sample could...
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Báo cáo y học: "Computational challenges in the analysis of ancient DNA" ppsx
Ngày tải lên :
09/08/2014, 20:22
... seemingly paradoxical result can be explained in the following way The chance of finding a seed-match and of producing a local alignment of significant similarity rises with the length of the ... (Figure S3 in Additional file 1) Therefore, requiring a minimum distance in bitscore between the best and second best hit is Page of 15 very effective in removing most of the remaining reads that ... location of the human and chimp hits for each read is verified by using liftover [50] to map the coordinates of the human hit to the chimpanzee genome and the coordinate of the chimpanzee hit to the...
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Applications of capillary electrophoresis in the analysis of natural products
Ngày tải lên :
11/09/2015, 14:27
... cathode The migration of cations results in the migration of whole buffer solution through the capillary; this migration is the EOF Since the driving force of EOF is uniformly distributed along the ... used in both the conviction of guilty offenders and the appraisal of the consanguinity Amino acids, peptides and proteins Proteins are very important to life, the complex molecules of proteins ... numbers), the number of double bonds and also the exact position of these double bonds, this will define the biological reactivity of the fatty acid molecule and even of the lipid containing these...
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Investigation and application of liquid chromatography mass spectrometry in the analysis of polar, less volatile and thermal unstable organic pollutants in environmental and biological samples 6
Ngày tải lên :
16/09/2015, 17:13
... underwent thermal degradation under the extraction conditions The results indicate that although carbamates tested in this study are thermally labile, there was little observable degradation under the ... irrespective of the type of water matrix Light intensity could prompt degradation significantly under mild alkaline conditions, while its influence was minor at higher pH (pH > 9) Furthermore, half-lives ... maintained as neither evaporation losses nor propoxur decomposition was observed during the process The extracts of goldfish, tortoises and sea lettuce were stable and a 3-days delay prior to analysis...
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Investigation and application of liquid chromatography mass spectrometry in the analysis of polar, less volatile and thermal unstable organic pollutants in environmental and biological samples 5
Ngày tải lên :
16/09/2015, 17:13
... Fig 5-4 shows the change in concentration of each of the analytes in the goldfish extracts with time From the figure, it can be seen that neither a decrease in the concentration of the extracts ... optimization of the MAE conditions To apply these techniques in practical applications, in this chapter I 138 demonstrated the application of these techniques in analysis of the residues of Nmethylcarbamate ... for the assignment of the variables under consideration The assignment of the main variables (A, B, C and D), two-variable interaction, and the level setting values of the main variables applied...
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Investigation and application of liquid chromatography mass spectrometry in the analysis of polar, less volatile and thermal unstable organic pollutants in environmental and biological samples 4
Ngày tải lên :
16/09/2015, 17:13
... increased to 200°C at a rate of 25°C/min, then maintained at 200°C for min; a second ramp 230°C at rate of 5°C/min, increased to 280°C at a rate of 20°C/min; The final temperature of 280°C was held for ... 88 An interesting result observed from Fig 4-6 is that in the same solvent, the recovery increases in going from PAHs to PCBs, and then to triazines (i.e, increasing polarity of analyte) The recovery ... direct extension of 2-level OAD with the added capability of providing information about the non-linearity of the main factors in the response surface However, the method as described in a work by...
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Investigation and application of liquid chromatography mass spectrometry in the analysis of polar, less volatile and thermal unstable organic pollutants in environmental and biological samples 3
Ngày tải lên :
16/09/2015, 17:13
... k is the first-order rate constant, which is calculated as the negative slope of the regression line where the natural logarithm of the percentage of the compound remaining is plotted against ... application of LC-APCI-MS for the determination of carbamates: carbofuran and 3hydroxy-carbofuran, and the analysis of triazine herbicides in water [8] LC-ESI-MS has been also successfully applied for the ... light intensity increases in the order of darkness, indoor lighting and sunlight This indicates that light exposure can prompt hydrolysis in various types of natural water Thus the effect of light...
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Investigation and application of liquid chromatography mass spectrometry in the analysis of polar, less volatile and thermal unstable organic pollutants in environmental and biological samples 2
Ngày tải lên :
16/09/2015, 17:13
... were obtained by storing the above spiked soil in bottles in a dry, dark location for 60 days It was assumed that the contaminants were uniformly distributed in the sample and that, because the soil ... 60mesh sieve In order to remove possible traces of PAHs, PCBs, triazines, carbamates and other organic contaminants, 100 g of each of the soil sample was immersed in 200 ml 46 each of methanol, ... possible trace organic contaminants prior to preparation, all of them were washed in fresh running water and then rinsed with deionized water The fish samples were grinded in a mortar and pestle with...
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Investigation and application of liquid chromatography mass spectrometry in the analysis of polar, less volatile and thermal unstable organic pollutants in environmental and biological samples 1
Ngày tải lên :
16/09/2015, 17:13
... In almost all cases higher recoveries were obtained from the spiked samples, demonstrating the effect of the stronger binding to the matrix in native samples [77] Furthermore, in many cases the ... principle of MAE The principle of MAE is based on heating the extractants (mostly liquid organic solvents) in contact with the sample with microwave energy [58] Partitioning of the analytes of ... microwave-absorbing properties of the solvent, the interaction of the solvent with the matrix, and the analyte solubility in the solvent Preferably, the solvent should have a high selectivity towards the...
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Development and application of liquid phase microextraction techniques in the analysis of environmental pollutants
Ngày tải lên :
17/09/2015, 17:20
... concentrations of organic substances in the aqueous environment has been a matter of increasing interest to the water industry, scientists and the general public alike, from the point of view of possible ... While the kinetics of the process were not described in detail, the importance of convective transport of analyte was highlighted The advantages of the drop-indrop system include low consumption of ... aspiration of the ASP, following the first sampling cycle, ensures that both the OF and the ASP are periodically renewed, and thus the OF would be in contact with fresh aqueous sample having the initial...
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Báo cáo hóa học: " Performance analysis of distributed ZF beamforming in the presence of CFO" pptx
Ngày tải lên :
20/06/2014, 22:20
... and the impacts of CFO in coordinated schemes are hence worse than for point-to-point communications Because the frequency offset translates into the possibly destructive combination of the incoming ... the energy toward the receiver P1 obtained by averaging the instantaneous SNR over the channel realizations and indicates the SNR gain over the single-user (SU) single-input-single-output (SISO) ... derive the resulting average SNR (Section 3.1) and to compare it to the SNR gain in SU scenarios The diversity gain is obtained by combining the multiple replicas of the signal collected at the...
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A discourse analysis of presuppositions in the declaration of independence made by president ho chi minh = phân tích diễn ngôn các tiền giả định trong tuyên ngôn độc lập của chủ tịch hồ chí minh
Ngày tải lên :
14/12/2013, 00:41
... Strikingly, the definite article the is used most Such expressions as the earth, the world appear to be the fixed principles of using the articles in the field of 30 grammar In grammar, the ... action, responding to the arguments of the opponents and foreseeing opposing dangers 33 Secondly, in quoting the declarations of independence of America in 1776 and the declaration of the French ... discourse analysis involves the study of language in use A wide range of linguistic texts are explored in the study of discourse These might be in either spoken or written form, including a conversation...
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An analysis of errors made by high school student in the use of subject verb agreement in english writing = phân tích lỗi sai của học sinh PTTH về sự tương hợp giữa chủ ngữ và động từ trong văn viết tiếng anh
Ngày tải lên :
18/12/2013, 10:04
... However, they mainly focus on the theory of SVA To the best of my knowlege, very little research so far has been done in Vietnam on the error analysis in the area of English SVA In the thesis by ... school students in the use of subject- verb agreement in English writing Aims of the study The study reported in this thesis aims to: - Identify the errors in using SVA in English writing made by ... three main parts Part I: Introduction In the introductory part, the rationale of the study is presented The aims, subjects, scope and method of the study are then identified The design of the study...
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The analysis of theme and rheme in little house on the prairie = sự phân tích về đề ngữ và thuyết ngữ, thông qua truyện ngôi nhà nhỏ trên thảo nguyên
Ngày tải lên :
22/12/2013, 12:59
... about later in Rheme In other words, Theme is the starting point of the utterance or point of departure of the message In many cases (Unmarked), the Theme of a Declarative sentence will be the grammatical ... that of the Interrogatives is the Interrogative word and that of the Imperatives is the Imperative form of the verb And Rheme is the remainder of the message, and also the part in which the Theme ... Interpersonal Themes, on the other hand, reveal something of the attitude of the speaker or the writer And Textual Theme is the link between the clause contains that Theme and the rest of the discourse...
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Tài liệu Báo cáo khoa học: A systems biology approach for the analysis of carbohydrate dynamics during acclimation to low temperature in Arabidopsis thaliana doc
Ngày tải lên :
14/02/2014, 22:20
... successful metabolic engineering of freezing tolerance in plants should include such an analysis of the dynamics of metabolism to gain comprehensive information about the effects of individual overexpression ... suggest increasing the maximum activities of enzymes participating in sucrose cycling Assuming that Rsch is optimized for cold acclimation, we suggest, on the basis of the results of the in silico ... uptake per hour Data points were spline-interpolated to obtain timecontinuous information on net photosynthesis during the whole period of cold exposure The rate of raffinose synthesis, rSuc fi Raf,...
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The analysis of AHAs in cosmetic
Ngày tải lên :
03/03/2014, 11:49
... centrifuged for 10 minutes at 6000 rpm The supernate was filtered with 0.45 µm filter and the filtrate was taken for HPLC analysis By comparing the ratio of the peak area of the sample to the internal standard ... 13.4 minutes respectively The retention time for the internal standard, Maleic acid, was 12.6 minutes Through the analysis of LC-MS, the peak shown at 15.5 minutes was proved to be an impurity of ... skin properties International Journal of Cosmetic Science 18: 75-83 Department of Health, Executive Yuan 1998 The regulations of the pH value, purpose and warning of the αhydroxyacids and the...
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The analysis of triclosan in toothpaste
Ngày tải lên :
03/03/2014, 11:49
... for identification The analysis of the triclosan in the presence of a concentrated and strongly IR absorbing species shows the great applicability of this method In the absence of HPLC-FTIR, costly ... 3:27:23 PM] The Analysis of Triclosan in Toothpaste Figure Due to the fact that the primary peak in the reconstruction (Figure 3) was so dominant several spectra were obtained to determine if this ... obtained with the °/min rotation rate Using a °/min rotation rate also gave peaks with the highest intensities As expected, spectra collected at 10 deg/min were lower in intensity because the...
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Báo cáo khoa học: Transcriptome profiling analysis reveals multiple modulatory effects of Ginkgo biloba extract in the liver of rats on a high-fat diet pdf
Ngày tải lên :
16/03/2014, 04:20
... protein that blocks the processing of sterol regulatory element-binding proteins (SREBPs) by binding to SREBP cleavage-activating protein, thus preventing the latter from escorting SREBPs to the ... regulation, the blocked green lines indicate negative regulation, and the dashed lines indicate indirect inhibition The black lines indicate substance conversion or transportation flow The dashed lines indicate ... prevented the harm caused by an HFD In addition, we found no significant alterations in the levels of alanine aminotransferase, aspartate aminotransferase or creatinine kinase in either group...
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Báo cáo khoa học: In vitro analysis of the relationship between endonuclease and maturase activities in the bi-functional doc
Ngày tải lên :
17/03/2014, 10:20
... to these We measured the rate constant for the binding of DNA to protein kinetically and obtained a value of at least half this in TK8 buffer containing 10 mM MgCl2 [33] Therefore, given that the ... Each time the splicing reaction was minimally affected by prebinding the DNA to protein As the concentration of protein used, nM, yields a rate of splicing which is about 25% that of the maximal ... and its binding affinity is not altered by the presence of DNA in the DNA binding site Interestingly, when nM RNA and 10 nM DNA were added simultaneously to a limiting amount of protein in TK8 buffer...
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