dissolution of poorly soluble compounds in surfactant solutions

... values of wind direction and wind speed of sample i The ranges of wind direction and wind speed are divided into a series of subranges having similar numbers of samples in each Then each wind direction/ ... concentration of compound j measured in sample i, the concentration of compound j in the emission of source p, and the strength of source p on sample i (16, 19) In this section, wind direction and wind ... generated by a random series (d) Select an interval of noise in mfc Although it is difficult to determine the exact starting and ending points of the noise interval, the selected noise range should...

Ngày tải lên: 22/03/2014, 14:20

... identified as a single point in Fig Point (∼17:00) is an interception of the plume at a lower altitude upon return into the MCMA The higher mixing ratios of MTBE at the beginning and the end of the flights ... downwind decreasing importance of NMHCs as they are reacted away to form products In addition, a northeast transport event was studied in which air originating in the MCMA was intercepted aloft ... basin (de Foy et al., 2006) Thus, it serves the purposes of this discussion to consider the morning hours as the starting point of the plume evolution Following morning emissions from traffic, industry...

Ngày tải lên: 28/03/2014, 20:20

Ngày tải lên: 13/11/2014, 10:24

... hormones unintentionally reactivated during the processing of human waste in sewage effluent, may result in endocrine disrupting effects in fish Synthetic steroid hormones including EE2 is a kind of ... potentially contains thousands of compounds Some of the synthetic organic compounds that are common in treated wastewater have been shown in laboratory studies to induce endocrine disrupting effects ... estrogenicity in municipal wastewater by the examination of anoxic-aerobic pilot-scale MBR systems • To study the elimination kinetics of EDCs, including biodegradation of EDCs, and de-conjugation of EDC...

Ngày tải lên: 14/09/2015, 14:03

... to headspace of a solution containing 200 µl of BSTFA in ml of acetone (in a 10-ml vial) for 10 minutes at 70ºC The fiber was then desorbed in the injection port of the GC for minutes Figure ... exposure of low doses of BPA in mice could bring on early puberty in females APs and BPA enter the marine environment through effluent discharge in the form, or as part, of surfactants in industrial ... spill incidents between 1993 and 2002, including a major spillage of 28,500 tones of crude oil in the Singapore Straits in October 1997 [28] With continued industrial development and shipping activity...

Ngày tải lên: 16/09/2015, 17:12

... glycine and mycosporine taurine are oxo-mycosporines), MAAs from marine organisms are imine derivatives of mycosporines which contain a cyclohexenimine ring (imino-mycosporine) linked to an amino ... 3.4 Role of mycosporine-like compounds in nature 23 3.5 Mycosporine-like compounds in lichens 24 CHAPTER 2: SCREENING AND QUANTIFICATION OF MYCOSPORINE-LIKE COMPOUNDS IN THE DERMATOCARPON ... mycosporines to confirm the presence of such compounds in chlorolichens and to have a better understanding of their biogenesis in lichens Due to occurrence of mycosporines in the four fresh species investigated...

Ngày tải lên: 20/05/2016, 16:03

... germination trays containing distilled water in order to maintain the paper always wet 105 by capillarity Germination trays containing the soaked grains were introduced in a 106 germination cabinet ... benefits of brown rice (BR) BR contains health promoting compounds, 37 including dietary fibre, γ-aminobutyric acid (GABA), vitamins, phenolic compounds 38 and γ-oryzanol that are mainly located in ... occur resulting in the degradation of 46 storage proteins and carbohydrates and promoting the synthesis and accumulation of 47 biofunctional compounds Germination process generally results in improved...

Ngày tải lên: 11/11/2016, 21:34

... 9.678 minute 734 Research on the Change of 2-AP and Other Volatile Compounds in Processing Bun from Rice 3.4 Investigating the changes of 2-AP and other volatile compounds of rice in Bun processing ... 3°C/min then from115°C to 220°C at 30°C/min and finally maintained at 220◦C for The detector port was maintained at 2500C Concentration of 2-AP in samples s is identified and quantified in the ... Compounds in Processing Bun from Rice Collidine 12.936min – AP 9.498 Figure GC-FID chromatograph of 2-AP and other volatile compounds in pandan leaf , in which: [2 - AP]SDE (g/kg) = - A: Area of the...

Ngày tải lên: 28/08/2013, 16:28

... of the Findings 23 2.3.1 Data Analysis 23 2.3.2 Discussion of the Findings 24 2.3.2.1 The students’ assessment of the importance of oral presentation skills in their ... giving presentations, and (3) factors causing their difficulties and their suggested solutions Specifically, the study has been conducted in the form of survey research, with the informants of ... presentations difficulties in the classroom setting, the research was aimed at finding out: (1) the students’ assessment of the importance of oral presentation skills in their future work, (2)...

Ngày tải lên: 07/09/2013, 13:02

... much on sequences of kinds of terms occurring in typical kinds of interactions Routines thus can be characterized in broad terms to include the kinds of turns typically occurring in given situations, ... routine skills and negotiation skills Routine skills are conventional ways of presenting information (1987: 23) There are two kinds of routines: information routines and interactional routines Information ... responsible for presenting the introduction; developing the main body of the presentation; reinforcing the ideas outlined in the main body and presenting the conclusion In second language classrooms,...

Ngày tải lên: 29/01/2014, 10:43

... of the effect reported is often small, there is consistency in these findings Most studies investigate the effects in children, however, of particular interest is a study of exposure to NO2 in ... changes in exposure and daily symptoms in the study population, particularly in exacerbating symptoms in asthmatics as well as inducing asthma in otherwise healthy individuals (Sarnat and Holguin ... individual levels of exposure Older and more poorly maintained vehicles are typically associated with higher levels of emissions (White et al 2006) Time of day of travel also has an influencing...

Ngày tải lên: 06/03/2014, 16:20

... portion, excluding container and packaging = weight (gm) of exempt compounds in propellant For aerosol products containing LVP-VOC, the percent VOC shall be calculated using the following equation: ... TESTING TO DETERMINE REACTIVE ORGANIC COMPOUNDS IN AEROSOL COATING PRODUCTS This section specifies the procedure for determining the percent by weight of the reactive organic compounds contained ... defined in section 94508(a), and (3) the reactive organic compounds (ROC) contained in aerosol coating products, as that term is defined in Title 17, CCR, section 94521 1.2 Method 310 determines...

Ngày tải lên: 14/03/2014, 20:20

... knowledge of the biosynthesis of DIMs and PGLs, the in vivo functions of these FadD proteins in this pathway remain to be established and ⁄ or completed For instance, the involvement of FadD26 in the ... Rv2949c, abolishing the production of p-HBA, which, in turn, would suppress the synthesis of PGL-tb in the mutant strain To examine whether the absence of PGL-tb in the cell envelope of the PMM66:pPET1 ... named pM26D, containing a wild-type copy of fadD26, into the mutant strain Complementation resulted in the production of new products exhibiting TLC mobilities similar to those of DIM A and DIM...

Ngày tải lên: 15/03/2014, 11:20

... 9.678 minute 734 Research on the Change of 2-AP and Other Volatile Compounds in Processing Bun from Rice 3.4 Investigating the changes of 2-AP and other volatile compounds of rice in Bun processing ... 3°C/min then from115°C to 220°C at 30°C/min and finally maintained at 220◦C for The detector port was maintained at 2500C Concentration of 2-AP in samples s is identified and quantified in the ... Compounds in Processing Bun from Rice Collidine 12.936min – AP 9.498 Figure GC-FID chromatograph of 2-AP and other volatile compounds in pandan leaf , in which: [2 - AP]SDE (g/kg) = - A: Area of the...

Ngày tải lên: 19/03/2014, 16:20

... procedures for determination of organic compounds in finished drinking water, source water, or drinking water in any treatment stage The method is applicable to a wide range of organic compounds that ... 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 internal standard in the ... 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 internal standard injected...

Ngày tải lên: 22/03/2014, 14:20

... 7.4, in the presence of an increasing excess of 4-methoxybenzyl alcohol, showed some increase in current intensity (% 10% increase with a fivefold excess of 4-methoxybenzyl alcohol; 50% increase ... can be oxidized once again at the electrode, this resulting in an increase of charge transport and therefore of current intensity Effect of the pK2 of the mediator and of solution pH on the laccase-catalyzed ... without being rapidly metabolized by the enzyme (undesired routes) In this study, we first investigated the kinetics of oxidation of phenol red by Poliporus pinsitus laccase in the absence of any...

Ngày tải lên: 23/03/2014, 21:20

... obtained in two clinical trials in which IvIg was administered to AD patients [22,23] and a multi-site phase trial is in progress In our ELISA studies we found that in addition to IvIg’s binding ... this binding Other reasons could include binding of anti-Ab antibodies by serum Ab (antibody “masking”), which could reduce ELISA detection of these antibodies [25], incorrect diagnosis of some ... cause of cognitive impairment These individuals were participants in the Rush Memory and Aging Project, a community-based, longitudinal clinicalpathologic study of aging and AD Details of this...

Ngày tải lên: 19/06/2014, 22:20

... all z ∈ K The variational inequality has emerged as a fascinating and interesting branch of mathematical and engineering sciences with a wide range of applications in industry, finance, economics, ... the references therein Related to the variational inequalities, we have the problem of finding the fixed points of the nonexpansive mappings, which is the current interest in functional analysis ... system of generalized nonlinear mixed variational inequalities in Hilbert spaces J Convex Anal 11, 235–243 (2004) 17 15 Li, JL: On the existence of solutions of variational inequalities in Banach...

Ngày tải lên: 20/06/2014, 21:20

... Advances in Difference Equations the solvability of the fractional-order functional integrodifferential equations of neutral type with in nite delay In the present paper, we will consider the following ... bounded subset of a seminormed linear space Y Kuratowski’s measure of noncompactness of B is defined as inf d > : B has a finite cover by sets of diameter ≤ d α B This measure of noncompactness satisfies ... subset of a Banach space X such that ∈ U, and let N be a continuous mapping of U into itself If the implication V convN V or V N V ∪ {0} ⇒ α V holds for every subset V of U, then N has a fixed point...

Ngày tải lên: 21/06/2014, 05:20