influence of matrix on the extraction process

... Despite of the different explanations, the two ways of interpretation on the salt effects agree on the point that the clouding phenomenon of nonionic surfactants is caused by the dehydration of the ... greatly influence the micelle formation of non-ionic surfactants The effects of solvent on the micelle formation will be discussed in the section of effects of alcohol on the cloud point of Tergitol ... X-100 At such low concentrations, the ionic surfactants exist in the solutions either in the form of monomer or mixed micelle with the nonionic surfactant The charging of the micellar surface...

Ngày tải lên: 16/09/2015, 17:11

... and the electron occupation on them In some cases, even the concentration of the adsorbed gas ions can be measured from the change of potential barrier w15x The potential barrier at the GB of the ... Ž under the depletion approximation Here, q is the electronic charge, Nd the donor concentration, W the depletion Ggb s Go exp ž yqVi kT / , Ž where Go is the conductance of the grain itself When ... than the exponential one since the desorption effect adds on the exponential temperature dependence given by Eq Ž5 But the decrease of film resistance is faster than the exponential one only...

Ngày tải lên: 20/03/2014, 13:04

... and in the conditions of a long day (15 hours) Estimation of the effect of sub-sterilizing doses on F1 generation was done indirectly, by: (A) evaluation of basic parameters: (1) number of galleries ... Separation was based on the great density of bristles on the pronota in females and/or bigger frontal projection typical for males Separation of sexes of living, hand-held beetles was done using ... Preparation of entry holes The time from the release to the start of preparation of entry holes was almost the same for both irradiated and non-irradiated males In spite of the fact, that the irradiated...

Ngày tải lên: 07/08/2014, 03:22

... limestone good [11] In order to determine the influence of fire on the seed bank in the soil two nearby areas were selected, one burned in a fire occurring in the summer of 1991 and the other ... regenerative strategies: seasonal regeneration by seed The type of seed bank is type 3, a small amount of seed persists in the soil but concentrations of seed in the soil are only high after seed has ... because it needs environmental conditions of humidity and temperature not present in the field rubra germinates in the surface stratum of the seed bank of the burned and control areas in very...

Ngày tải lên: 08/08/2014, 14:21

... effect of hypoxia on MSCs homing, mobilization and migration Conclusion The major conclusion of our study is that, in our model of hypoxic pulmonary artery remodeling without endothelial disruption, ... distribution of radioactivity after infusion of the radiolabeled-MSCs was imaged from the end of infusion up to 96 h after This imaging provides an immediate indication of the initial cells distribution ... animals either in normoxic or hypoxic conditions during weeks The tolerance of these injections was good and no animals died or showed rejection From confocal microscopy observation centered on the...

Ngày tải lên: 12/08/2014, 18:20

... preservation and transport of food are just some of the important contributions of the industry to modern civilization Today, the end-products of the industry are used by billions of people in their ... considerations for the industry of the previous sections - Chapter 11 provides the main findings, discussion of the results and the research questions - Chapter 12 discusses the limitations of the study ... attention on climate change has brought new interest in the environmental school (10) Configuration school: The configuration school considers strategy as a process of transformation – organizations...

Ngày tải lên: 18/03/2014, 02:20

... indicates the sample(4a) contains 5.8 atomic percent of Na and the latter(4d) contains only trace of Na, it shows that the treatment with HCl solution is helpful for the removing of Na+ ion from ... the distance between adjacent layers is 0.8 nm? Because the adjacent layers of nanotube are kept apart by wall of OH- groups (shown as Figure 5) Theoretically, the distance of the layers of the ... nm=0.63 nm8 Owing to the repulsive force between OH- groups, the distance of the layers of the wall broadens to 0.8 nm Based on the above results, it can be concluded that the anisotropic swelling...

Ngày tải lên: 20/03/2014, 13:08

... possible for one journal to satisfy all the needs of the reader and the author along the translational medicine pathway Even in this small sample of journals the positioning of the journal in the translational ... an intervention This involves assessment of the quality of the evidence, the risks and benefits of treatments, and the impact of implementation on clinical care pathways by practitioners and those ... application But over twenty years later, only five of these promising advances were in licensed clinical use and only one of them had had a major impact on current medical practice Three quarters of the...

Ngày tải lên: 18/06/2014, 16:20

... cells, the effect of oxygen (during operation of the oxygen cycle) on the expander should also be added to the temperature effects The following conclusions can be drawn on the grounds of the data ... of the skeleton structure The changes in the skeleton structure are negligible The conversion of the energetic structure into skeleton one is responsible for failure of the plates The negative ... Journal of Power Sources 113 (2003) 335±344 on the activity and stability of the expander(s) used, on temperature, and on the battery type (VRLAB or ¯ooded) Because of the speci®c conditions of EV...

Ngày tải lên: 05/07/2014, 21:20

... surfactant ratio and the pH of the synthesis gel can greatly influence the characteristics of the resulting materials as they generally control the formation of micelles during the synthesis.8 Hence, ... layer The role of HCl in the synthesis process involves dehydrating the PEO segment and decreasing the solubility of the PEO block by the presence of Cl– ions in the aqueous solution.21 The increase ... Grange, P & Su, B L (2003) Chemistry of silica at different concentrations of non-ionic surfactant solutions: Effect of pH of the synthesis gel on the preparation of mesoporous silica Microporous...

Ngày tải lên: 07/08/2014, 14:20

... the influence of thermal residual stresses and thermal generated dislocation on the overall response of particulatereinforced MMNCs will be investigated In the study of void, the simulation of ... mention their influences on the mechanical behavior of MMCs 18 2.1.2 Effect of the interphase The mechanical properties of MMCs are not only determined by the mechanical properties of the matrix ... dislocations than the bulk of the matrix (Dunand and Mortensen, 1991a) making the mechanical properties of that regions different from rest of the matrix According to previous definition, these regions...

Ngày tải lên: 09/09/2015, 08:12

... illustration showing the reduction of the pinning length at the tip as the wetting front advances across a nanopillar (c) Side view of the process in (b) Black lines represent the resting position of the ... takes place on the surface of the gold while the anodic reaction (#) takes place on the silicon surface Red arrows indicate the transfer of h+ from the cathode to the anode/solution interface ... where R is the radius of curvature of the spherical cap, H is the maximum height of the spherical cap of liquid measured from the substrate surface, a is the base radius of the droplet on the substrate,...

Ngày tải lên: 09/09/2015, 11:16

... include tilting of the octahedra, displacements of the cations out of the centers of their 17 Thesis Vu Thi Huong coordination polyhedra, and distortions of the octahedra driven by electronic factors ... process) the temperature drops as the domains [1] absorb the thermal energy to perform their reorientation The randomization of the domains [2] occurs in a similar fashion to the randomization ... coordination numbers of A cations, B cations or both are reduced Tilting of the BO6 octahedra reduces the coordination of an undersized A cation from 12 to as low as Conversely, off-centering of an...

Ngày tải lên: 24/06/2016, 12:58

... contamination PCR reaction triplicates showed no major differences among them and expression levels of the internal control were similar in the different experiments The expression levels of csp ... deviation of the mean No amplification was observed when cDNA controls, that lack the reverse transcriptase enzyme, were used in the real time PCR reactions, demonstrating that there was no gDNA contamination ... Quantification relies on the comparison of the critical threshold cycle (Ct) of an unknown sample against a standard curve of known quantities Ct is the amplification cycle at which the fluorescence...

Ngày tải lên: 02/11/2012, 10:14

... microbial polymer extraction methods (steaming extraction, NaOH extraction, SDS extraction, and washing extraction) were compared to develop an effective extraction method for bioflocculants from ... extraction was the most effective method for the extraction of bioflocculants from activated sludge, followed by steaming extraction SDS and washing extraction methods were ineffective because of ... composed mainly of protein, was unexpected Figure shows the effect of concentration of the NaOH-extracted polymer (2.5 to 20 ppm) on activity in the presence of mM calcium ions The activity correlated...

Ngày tải lên: 05/09/2013, 09:08

... Production cycle of Ingeo™ Cargill Dow developed a patented and minimal cost continuous process for the production of PLA polymer The process begins with the continuous condensation of lactic ... Effect of time of heatsetting on the linearity of load extension in warp direction of knitted Ingeo™ Poly (lactic acid) fabric Figure Effect of time of heatsetting on the linearity of load extension ... Effect of time of heatsetting on the tensile Extension EM [%] in Weft direction of knitted Ingeo™ Poly (lactic acid) [PLA] Figure Mean [Ā] of effect of time of heatsetting on the tensile extension...

Ngày tải lên: 05/09/2013, 16:10

... on the job • The majority of Americans not believe it takes a lot of money for a woman to make a good impression at work Two-thirds (65%) of Americans not believe it takes a lot of money for a ... Given new challenges, responsibilities and opportunities 67% Considered for a raise or promotion 64% Other (Specify) 0% None of the above (DO NOT READ) 4% Don’t know/Not sure (DO ... are cert ain they dress ed app ropriate ly on their most recent first day on a job Nearly four out of five (78%) Americans are very or extremely certain they dressed appropriately for their most...

Ngày tải lên: 18/10/2013, 14:15

... problem of variations across households to the more institutional issue of the relationship between the political mobilization of classes on the one hand and gender relations on the other One might ... than to the distribution as a whole None of these manipulations of the data changed the essential contours of the results: class location is simply not a powerful determinant of the amount of housework ... to other causal processes On the one hand, this means that gender is socially constructed rather than a mere expression of biological processes On the other hand, it means that in the social processes...

Ngày tải lên: 01/11/2013, 07:20

... evidence on the relationships among personnel productivity, Transformation refers to the evolution and development of the military in the face of technological and national security environment ... varying conditions First, they consider a situation in which each maintenance worker can fix only one type of part In the second trial, they relax this condition and consider a situation in which ... and scope And the world is a less certain place New concerns about the implications of operational and personnel tempo and the distribution of responsibilities through the ranks of the hierarchy...

Ngày tải lên: 17/02/2014, 22:20

... contradictory to the conclusions of the Final Document of the Moscow Meeting of the Conference on the Human Dimension of the CSCE and in breach of Article 19 of the International Covenant on Civil and ... provisions on net neutrality may be adopted in the context of the revision of Portuguese legislation in the scope of the transposition of the European Union directives on electronic communications ... commitments, namely the conclusions of the Final Act of Copenhagen and the conclusions of the Final Document of the Moscow Meeting as well as with Article 10 of the European Convention on Human Rights,...

Ngày tải lên: 18/02/2014, 00:20