influence of matrix on the extraction process

... 90% of ethanol, the extraction time of 22 hours, the extraction temperature of 59 o C, and a material/solvent ratio of 1/20 (g/mL) Under the optimized conditions, the extraction yield of the ... leaves The parameters of ethanol concentration, extraction temperature, extraction time, and material/solvent ratio have been optimized According to the models, the optimal extraction conditions ... & Sun, Y M (2012) Optimization of the extraction of anthocyanins from the fruit skin of Rhodomyrtus tomentosa (Ait.) Hassk and identification of anthocyanins in the extract using high-performance

Ngày tải lên: 16/06/2024, 00:30

... the downfall of Arthur Andersen, a world­class prestigious audit firm in 2002, raised the concerns about audit quality. A number of scandals about audit quality of independent audit firms were disclosed after that, which leads to the reduction in the confidence of investors in the role of independent audit  in confirming the reliability of financial information and thus the issue of audit quality of financial statements becomes really urgent ... audit services to meet the needs of customers (FDI enterprises) not only ensures the maintenance and development of customers for the independent audit industry but also creates favorable conditions for FDI enterprises operating in Vietnam, thereby contributing to the sustainable development of the national economy Therefore, the author chooses the thesis topic, namely “Research on  the influence of factors on the audit quality of financial statements of   FDI   enterprises ... In addition to the introduction and conclusion, the thesis consists of 5 chapters: Chapter   1:   Fundemental   theory   on   the   audit   quality   of   financial statements   and   the   factors

Ngày tải lên: 08/01/2020, 07:12

... 2008) These results were also supported by Marston et al (2014) where they studied the impacts of gender difference on the level of satisfaction and student adoption of an electronic version of the ... affected by the gender moderator The results showed that the impact of the factor of SI on females was more than males On the other hand, female students were more confident in the use of the e-book ... Conference on e-Learning and Games, the 24th Australasian Joint Conference on Artificial Intelligence, the Second International Conference on Artificial Intelligence, the Second International Conference

Ngày tải lên: 10/01/2020, 09:07

... Ca+2 ions Nonetheless, it would not be erroneous to think that the exchange of cations had a role in the change of the interlayer distance and structure The amounts of I/S or smectite decreased ... decreases of SiO2 in the chemical compositions of the clay samples are clear in Table On the other hand, another possible transformation reaction in the clays due to leachate may be illite formation ... effects of the landfill leachate The location of samples can be seen in Figure These clays were selected on purpose, since they belonged to typical formations either used as barrier material at

Ngày tải lên: 13/01/2020, 15:07

... June (under the influence of the Southwest monsoon), then gradually decreases until December, January and February of the next year (due to the influence of the Northeast monsoon) The monthly average ... 27.5oC in the coastal area and stands at the lowest level of 26oC in the southern Ca Mau cape due to the strong influence of the cold tongue from the East Vietnam Sea and the northeast monsoon In ... the start of the Northeast monsoon and cold tongue from East Vietnam Sea influences the temperature (the temperature ranges from 28.5 to 29.5oC) In December, the influence of Northeast monsoon

Ngày tải lên: 23/07/2020, 01:56

... Transactions of the American Association on the Study and Prevention of Infant Mortality of the Third Annual Meeting (Baltimore: The Franklin Printing Co., 1913), 150–53 47Allison Berg, Mothering the ... were not only direct economic competition, but also the primary reason for the low esteem of obstetrics DeLee often placed the blame on the public stating, “A community that tolerates the midwife ... Boston who spearheaded one of the first prenatal programs in the United States, they were not the only ones interested in prenatal care Obstetricians, eager to elevate the legitimacy of their

Ngày tải lên: 27/02/2022, 06:33

... Dissertations, Theses, and Masters Projects Theses, Dissertations, & Master Projects 1979 The influence of accreditation on the development of the Medical College of Virginia into an institution ... EXTERNAL INFLUENCES ON THE MEDICAL COLLEGE OF V I R G I N I A WHICH REQUIRED A MERGER , - - 32 I V , THE INTERNAL REACTION OF THE MEDICAL COLLEGE Trang 10THE INFLUENCE OF ACCREDITATION ON THE DEVELOPMENT ... filmed the l>est available copy U n Intemationaf Trang 4THE INFLUENCE OF ACCREDITATION ON THE DEVELOPMENT OF THE MEDICAL COLLEGE OF V IR GI N IA INTO AN INSTITUTION WITH UNIVERSITY AFFILI ATI ON

Ngày tải lên: 23/10/2022, 15:40

... the South, the food products of the Northwest found their way to the markets in the south on the southward flowing rivers During the earlier period of naviagtion on Indiana streams, most of the ... from the Arctic to the Gulf of Mexico, with the exception or New Orleans After the British gained control of this areae they followed a policy of excluding the American colonists from the region ... CONCLUSION 41 48 5255 Trang 7Evidences of the varying influence of bodies of wateron the progress of mankind are apparent in the study of his tory.Our earli.est civilizations developed along

Ngày tải lên: 30/10/2022, 16:14

... rejuvenation However, further studies are required to confirm these speculations In conclusion, we found that the quantity and quality of CDCs varied between patients of diverse ages However, the influence ... production of paracrine factors varies among CDCs There is growing appreciation that the efficacy of cell therapy depends largely on paracrine effects18,19 We thus compared the ability of CDCs ... age9,23,24, which compromises their regenerative capacity However, few studies have focused on the influence of donor age on CDC function12 This prompted us to examine the function of CDCs obtained from

Ngày tải lên: 04/12/2022, 14:53

... chép, ếch, gà nhà. 1 Introduction The structural organization and function of biological membranes, involved in the integration of regulatory processes and reactions of the cell are focused in modern ... Disorganization of cell membranes due to the action of various factors can lead to disruption of intracellular synthetic processes, cell maturation and release into the blood cell defective components, ... membrane of red blood cells were the most detail studied in mammals and humans [8-12] The question of the structural and functional status of the cytoplasmic membrane of nuclear red blood cells of other

Ngày tải lên: 05/01/2023, 22:23

... approval from the Federal Board of Maternity and Infant Hygiene, which included key officials such as the head of the Children’s Bureau, the Surgeon General, and the US Commissioner of Education. ... in the city His mission involved visiting mothers in their homes to assess their environmental and social conditions, which deepened his understanding of the challenges they faced. 60 Richard ... integrate the efforts of both the medical profession and public health agencies, highlighting the importance of socioeconomic factors in ensuring successful outcomes for expectant mothers.In the United

Ngày tải lên: 19/07/2023, 14:29

... important information on the properties of PA6 and helped improve the production process A study on the influence of chemical foaming on the structure and selected properties of glass fiber reinforced ... application of PA6 in fields such as healthcare and the environment In addition, research has also focused on the production process of PA6, with the aim of reducing emissions and optimizing the production ... middle of the screw is used to conpress the liquid material The metering section is mixing zone homogenizes the material before injection into the mold The nozzle is the part that connect the screw

Ngày tải lên: 14/11/2023, 10:11

... UNIVERSITY OF ECONOMICS —- THE UNIVERSITY OF DANANG INTERNATIONAL BUSINESS University of Economics RESEARCH PROPOSAL THE INFLUENCE OF TIKTOK ON THE TOURIST DESTINATION CHOICE OF YOUNG FOREIGN ... clarify the mechanism of influence between using TikTok and the destination choice behavior of young foreign tourists The results of this study contribute to both theory and practice They enrich the ... people also often plan their family trips and may plan their own trips in the coming years Therefore, my research focuses on the pre-travel stage (i.e., the consideration stage in the customer

Ngày tải lên: 02/06/2024, 14:22

... to the most recent definition of the Zero-Waste, formulated by the Zero-Waste International Alliance, Zero-Waste is “The 2 Trang 4conservation of all resources by means of responsible production, ... 1National Economics UniversityBachelor of Business Administration in English Business Research Methodology Research Proposal The influence of Instagram on the perception of young people towards the ... Hypothesis 5: H5: Age can influence the perception of a Zero-Waste lifestyle. 6 Research Methodology 6.1 Research Design Purpose of the study: The purpose of this study is to investigate the influence

Ngày tải lên: 17/06/2024, 17:24

... 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

... 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

... 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