specific features of supercritical water for hydrothermal synthesis

... with prosodic information while keeping the feeling of fluentness Understanding the interplay of these parameters is today one of the hottest topics for research on speech synthesis For prosodic ... Therefore, the "naturalness" of synthesized speech is depends on ability of macro-prosody controlling during speech synthesis process Objectives and Tasks This thesis is part of MICA speech synthesis ... transcription and a description of the prosodic intent of the speaker The starting point of intonation research is the time series of F0 But the interpretation of the F0 information diverges widely...

Ngày tải lên: 19/02/2014, 08:58

... investigation Each volume of 1500 ml with determined initial concentration of dyestuffs is prepared for the kinetics investigations Two concentrations of the dyestuffs (20ppm and 40ppm of each type) and ... used to treat dyestuffs of the textile wastewater When the concentration of dyestuffs in waste water is about 250ppm, the activated carbon could adsorb 100, 60, 250 mg/g for the dyestuffs Sulfite ... as the treatment temperature of most waste water resources Different volumes with determined initial concentrations of dyestuffs and different determined amounts of activated carbon have been...

Ngày tải lên: 22/07/2014, 03:20

... DEVELOPMENT OF NEW METHODOLOGIES FOR THE SYNTHESIS OF ENANTIOMERICALLY ENRICHED COMPOUNDS LEE CHENG HSIA ANGELINE (B.ApplSc (Hons.), NUS) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY ... participation of alkene in the formation of aldehyde via ozonolysis (path C), the facile one-carbon homologation to δ-lactones via hydroformylation (path D), the selective epoxidation for introduction of ... synthesized by the general routes of asymmetric synthesis Among many of such transformations, asymmetric allylation of carbonyl functionalities stands out in its own right for constructing chiral homoallylic...

Ngày tải lên: 16/09/2015, 08:30

... DEVELOPMENT OF NOVEL METHODS FOR THE SYNTHESIS OF HOMOALLYLIC ALCOHOLS PART II : MULTIGRAM SYNTHESIS OF (−)-EPIBATIDINE KEN LEE CHI LIK B.Sc (Hons.), NUS A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF ... Route 183 iii SUMMARY PART I: Development of Novel Methods for the Synthesis of Homoallylic Alcohols In the development of novel methods for the synthesis of homoallylic alcohols, two conceptual ... to 153 through a reductive elimination of the former; (5) the entire synthetic route is straightforward and convenient for gram scale synthesis vi LIST OF ABBREVIATIONS Ac acetyl ACCN 1,1’Azobis(cyclohexanecarbonitrile)...

Ngày tải lên: 16/09/2015, 17:11

... issue for the real use of metal oxide gas sensor Therefore, response of ZnO nanorods for 200 ppm of CO ethanol and acetaldehyde is compared at different testing temperatures The response for ethanol ... Fig 3a shows the comparison of response of ZnO for 1000 ppm of CO and 250 ppm of ethanol as well as acetaldehyde at different testing temperatures The highest response for CO gas is 4.93 at 200 ... temperature For low concentration of gas response for ethanol was better than the CO and acetaldehyde gas at low testing temperature Fig Response of ZnO nanorods at different testing temperatures for...

Ngày tải lên: 06/05/2014, 13:24

... necessary for effective photodegradation of the KGL dye [51] After irradiation for 120 min, the degrees of degradation of KGL were about 82.17% for the ZnO (150 ºC) sample, and almost 100% for ZnO ... patterns of the ZnO sample synthesized at 120 ƕC for 17 h hydrothermal treatment Fig SEM images of the time-dependent evolution in the formation of 3D flower-like ZnO synthesized 18 at 120 ƕC for ... illustration of the formation process of the 3D flower-like ZnO Figure Fig (a) Bar graph illustration of the photocatalytic degradation of KGL using ZnO samples synthesized at 120 ◦C for different hydrothermal...

Ngày tải lên: 06/05/2014, 13:26

... reaction for the formation of MnO2 may be dominant in the hydrothermal process Porous MnO2 films composed of nanoflakes have been reported to be easily produced in a hydrothermal reaction of KMnO4 ... The specific capacitance of the MnO2/CNT nanocomposite electrode is about 223 F/g at a scan rate of 10 mV/s, corresponding to a high specific capacitance of 310 F/g for MnO2 alone CV curves of ... present work, a facile hydrothermal synthesis has been designed to deposit a uniform and highly porous MnO2 layer consisting of interconnected nanoflakes onto the surface of the CNTs The structure,...

Ngày tải lên: 20/06/2014, 23:20

... manufacturing of companies Therefore, “A Study of Linguistic Features of Instructions for Use of Foodstuffs in English and 1.1 RATIONALE Vietnamese” is the title of the master thesis I wish to perform ... should know not only the role of lexicon and of syntax some linguistic features of instructions for use of foodstuffs in English and, but also the semantic aspect of its language to get a thorough ... differences of instructions for use of foodstuffs in English and Vietnamese in terms of linguistic features? What are some possible suggestions for teaching, learning, as instruction: method of instruction...

Ngày tải lên: 26/11/2013, 13:23

... incorporation of arbitrary local features in a log-linear model Our base features include: a feature for each word type, a set of features that check whether the word contains digits or hyphens, suffix features ... weight.7 We compute features for membership in the top N items by this metric, for N ∈ {1000, 2000, 3000, 5000, 10000, 20000} TAG D ICT: Traditional tag dictionary We add features for all coarse-grained ... often too coarse; e.g {war we’re wear were where worry} map to WR We include two types of features First, we use the Metaphone key for the current token, complementing the base model’s word features...

Ngày tải lên: 20/02/2014, 04:20

... development of antigenomic therapies, such a reagent might also be useful in investigating the rate of turnover of mtDNA and in the derivation of mtDNA-free (q°) clones of the large number of cell ... addition of a TPP-moiety has been used to drive the selective uptake of a wide variety of Ó FEBS 2003 Fig Selective uptake of mitoDC-81 by mitochondria and subsequent alkylation of mtDNA The uptake of ... Dimethylformamide (0.1 mL) was then added and the suspension was stirred for 10 at room temperature A solution of DC-81 [34] (24.6 mg, 0.1 mmol) in dimethylformamide (0.2 mL) and tetrahydrofuran...

Ngày tải lên: 20/02/2014, 11:20

... Preparation of Error-Patterns: As the threshold value for the frequency of the occurrence, we employed a value of not less than 2, therefore we obtained 629 Error-Pattems using the 4321 results of speech ... threshold value for the frequency of the occurrence, and 10 as the length of a string, therefore obtaining 16655 strings 3.2 Two Factors for Evaluation We evaluated the following two factors before and ... in the Number of Errors Table 4-1 shows the number of errors before and after correction These results show the following Table 4-2 The number of changes in the evaluated level before and aJier...

Ngày tải lên: 20/02/2014, 18:20

... l-gulono-1,4-lactone dehydrogenase of M tuberculosis is a specific enzyme for the biosynthesis of L-AA As far as we know, this is the first report of a specific biosynthetic enzyme for vitamin C in bacteria ... (MALDI Q-TOF) MS analysis of in-gel-digested protein bands was performed on a Q-TOF Ultima Global mass spectrometer equipped with a MALDI source (Micromass, Waters Corporation, Milford, MA), ... an optical density of 0.8 at 600 nm in 200 mL of culture volume, and then IPTG was added to a final concentration of 0.1 mm for induction, and the fusion protein was produced for h or h, as indicated...

Ngày tải lên: 07/03/2014, 12:20

... K0.5 app and Ki app for both monovalent cations, it is relevant that the decrease of the K0.5 app was more important for K+ than for Na+; the ratio of K0.5 app for K+ in water to that in 40% ... that of K+ and Mg2+ In media with 40% dimethylsulfoxide, the kinetics of Na+ activation at Mg2+free concentrations in the range of 1.35–9.38 mM were determined For determination of the kinetics of ... K+ in 100% water Ó FEBS 2003 Selectivity of pyruvate kinase for Na+ and K+ (Eur J Biochem 270) 2381 Fig Effect of Mg2+ on the activity of pyruvate kinase at various concentrations of Na+ (A)...

Ngày tải lên: 08/03/2014, 02:20

... Remediation Issues1) Low Solubility (1-10 ppm) in water provides continuous leaching with time 2) Treatment of large volumes of highly diluted toxins 3) Cost of treatment tsnl Possible Treatment ApproachesStep ... Adsorption of toxic chemicals in aqueous supernatant from Step 2)Chemical Oxidation or Total Mineralization of the the Organics 3)Deep UV Photooxidation of the Organics 4)Photocatalytic oxidation of ... toxicity can be selected (e.g MoS2) •Our synthesis allows easy chemical modification of the nanocluster surface properties (e.g deposition of a metal) •Small size of nanocluster vastly reduces electron-hole...

Ngày tải lên: 14/03/2014, 20:20

... center of an alumina tube and then temperature is raised above the limit of decomposition for the oxide (from 600 ◦ C for zinc oxide to 1500 ◦ C for indium oxide) [16] A controlled flow of inert ... image of a nanowire, and (e) linescan of the HAADF signal (solid line) and numerical fit of the shape of the nanowire (dashed line) As both composition and phase can be considered uniform for the ... Characteristics of ZnO nanowires: (a–c) variation of the size for the ZnO nanowires for different growth conditions, (d) TEM image of ZnO crystalline nanowire, (e) high-resolution TEM image of the hexagonal...

Ngày tải lên: 16/03/2014, 15:25

... signals for H2¢ of the nucleotide moieties overlapped that of HOD, and the H5¢¢ and H6¢¢ signals of the sugar moieties of GDP-a-D-mannose also overlapped The signals for the sugar moiety of the ... content of 48.0% [43] The GC content of the region essential for the biosynthesis of SPA in the other serotype strains (b–e) of A actinomycetemcomitans is also lower than the average GC content of ... gene clusters responsible for the biosynthesis of SPAs of A actinomycetemcomitans serotypes a, b, c, d, and e [23,29,34–36] The gene cluster associated with the synthesis of SPA in A actinomycetemcomitans...

Ngày tải lên: 17/03/2014, 10:20

... and forms Sn(OH)2− anions Sn(OH)4 hydrothermal condition (Sn(OH)6 ) −→ SnO2 + 2H2 O 2− hydrothermal condition −→ SnO2 + 2H2 O + 2OH− (7) (8) The concentration of tin ions in solution is of influencing ... diameter of nanowires We found that the molar ratio of Sn4+ , to OH− , ions for the optimal growth of elongated SnO2 nanowires is 1:20–25 Conclusion Fig Micro-Raman scattering spectra of the rutile ... hydrothermal method was developed to synthesize long SnO2 nanowires at low temperature for 15–20 We investigated the synthesis of SnO2 nanowires/nanoneedles by a low-temperature (95–98 ◦ C) hydrothermal...

Ngày tải lên: 19/03/2014, 16:47

... structure, and (c) schematic diagram of testing system dissolved in 20 ml of distilled water and a designated amount of Na2 WO4 ·2H2 O was dissolved in 20 ml of distilled water After mixing the two solutions ... Fig shows the XRD patterns of the R30, R5, and R0.5 powders prepared by HT of precursors at 450 ◦ C for h The R30 powders 2.2 Characterization of sample The morphologies of the precursors and powders ... 450 ◦ C for h (Fig 3(b), (d) and (f)) Thus, the morphology of the powders could be designed in the stage of hydrothermal reaction The WO3 microspheres after HT (R30 powders) consisted of many...

Ngày tải lên: 19/03/2014, 16:48

... ◦ C for 24 h 218 X Liu et al / Journal of Alloys and Compounds 433 (2007) 216–220 Fig (A) TEM image of the sample produced at 140 ◦ C for h (B) TEM image of the sample produced at 140 ◦ C for ... mass of ␣-FeOOH nanorods reveals the satisfactory crystallinity of the sample, which can be indexed to the pure Fig TEM image of the sample of produced at 140 ◦ C for 12 h (B) TEM image of the ... critical for the formation of porous fusiform ␣-Fe2 O3 (hematite) nanocrystallines Fusiform ␣-Fe2 O3 (hematite) nanocrystallines were obtained when the reactants were treated at 140 ◦ C for 24...

Ngày tải lên: 19/03/2014, 16:48

... hydrothermal conditions has focused our interest to utilize EDTA in the synthesis of 1D h-WO3 nanocrystals with different morphologies Therefore, the present work investigates the synthesis of ... control over the shapes of nanowire bundles and nanorods, allowing the formation of urchin-like crystalline h-WO3 via simple substitution of NH4 + in place of Na+ ions of EDTA salt solutions Experimental ... mixture of aggregated short nanowire bundles and short nanorods was formed after h of reaction time at 180 ◦ C On the other hand, the reaction conducted at 180 ◦ C for h revealed the formation of...

Ngày tải lên: 19/03/2014, 16:48