effect of cationic polymer additives
Báo cáo hóa học: " Effect of Cationic Surfactant Head Groups on Synthesis, Growth and Agglomeration Behavior of ZnS Nanoparticles" pot
Ngày tải lên :
22/06/2014, 00:20
... radiations irrespective of the nature of surfactants Aggregation Behavior of Surfactants in Presence of ZnS Nanoparticles The aggregation behavior of both the surfactants in the presence of respective ... place prior to that of free micelles The decrease in cmc values of the surfactants in the presence of some additives has been attributed to the screening of surface charge of micelles [39] The ... not grow and got stabilized at smaller size due to adsorption of large head group of CPyC Furthermore, the effect of UV radiation of two different wavelengths (254 and 365 nm) on ZnS nanoparticles...
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Effect of cationic micelles on the kinetics of interaction of Cr(III) gly gly2+ with ninhydrin
Ngày tải lên :
02/09/2015, 13:12
... 2.4 4.5 Plots of ΔA310 nm versus mole fraction (x) of ninhydrin 75 4.5 6.8 for determination of the composition of the product formed by 80 5.1 9.4 2.0 Fig.3 2+ the interaction of [Cr(III)-Gly-Gly] ... Fig.5 Plots of k versus [ninhydrin]T for the interaction of Effect of inorganic salts on the reaction rate for [Cr(III)-Gly-Gly] with ninhydrin in the absence (A) and the interaction of [Cr(III)-Gly-Gly]2+ ... incorporation of the product into reactive region of the CTAB micelles To determine the effect of CTAB micelles on the reaction rate, the kinetic experiments were performed in the presence of varying...
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nmr spectra of polymers and polymer additives
Ngày tải lên :
01/06/2014, 10:11
... on polymers [1–3], NMR [4–12], or more specifically, NMR of polymers [17–23] I.B— An Overview of Polymer Structures Commercially important synthetic polymers belong to many different classes of ... Relations in Polymers Plastic garbage bags, medical implants, textile fibers, bulletproof vests—these are just a few of the diverse applications of modern polymeric materials [1] This breadth of applicability ... are often blends of two or more polymers and may include additives at relatively high concentrations One of our goals in collecting these spectra has been to provide not just a compilation of...
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Effect of additives in compressed lead–acid batteries docx
Ngày tải lên :
05/07/2014, 20:21
... capacity is lower than 50% of the initial one 2.3.2 Laboratory cells modified by additives In order to underline the effect of the additives on the electrical performance of the modified cells, a ... important effect of a high pressure on the active mass cohesion and the premature end of the test because of shortcircuit are arguments to prefer a high rate of compression The decrease of the capacity ... of additives, which could have a significant effect on its properties, porosity, density, etc Numerous kinds of additives [4] have already been tested in order to improve the performances of lead–acid...
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Effect of additives in compressed lead–acid batteries pdf
Ngày tải lên :
05/07/2014, 20:21
... electrolyte additives that actively seek out and deactivate the dangerous growths of lead particulate This class of additives is known as dendrite prevention additives, DPA for short The additives of ... Impact of additives on separators 3.2 Separator additives Now the possible impacts of active material additives are addressed for both physical and chemical attribute additives As a key component of ... Journal of Power Sources 95 (2001) 255±263 Fig Structure of skeletal separator Fig Structure of fiber separator A.L Ferreira / Journal of Power Sources 95 (2001) 255±263 261 amounts of 2±8% of separator...
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Effect of mixed additives on lead–acid battery electrolyte pdf
Ngày tải lên :
05/07/2014, 20:21
... change of activity of SO4 2À ion may not be significant However, it seems that factors (i) and (iii) are often important in understanding the functioning of the electrodes in the presence of the additives ... adsorption of additives (single additive or mixture of additives) Thus, if the surface coverage is y, the active surface taking part in the reaction will be (1Ày) (ii) The activity of SO4 2À ion ... controlled concentration of SnSO4 and using a complexing agent The model of specific adsorption of additives on the electrode (2) It seems that morphological changes of the PbSO4 layer (vide factor...
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Effect of additives in compressed lead–acid batteries pot
Ngày tải lên :
05/07/2014, 21:20
... capacity is lower than 50% of the initial one 2.3.2 Laboratory cells modified by additives In order to underline the effect of the additives on the electrical performance of the modified cells, a ... important effect of a high pressure on the active mass cohesion and the premature end of the test because of shortcircuit are arguments to prefer a high rate of compression The decrease of the capacity ... of additives, which could have a significant effect on its properties, porosity, density, etc Numerous kinds of additives [4] have already been tested in order to improve the performances of lead–acid...
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Báo cáo vật lý: "THE EFFECT OF ADDITIVES ON THE SIZE OF Fe3O4 PARTICLES" ppt
Ngày tải lên :
07/08/2014, 14:20
... Am Chem Soc., 126, 1195–1198 The Effect of Additives on the Size of Fe3O4 Particles 31 32 50 Hofmeister, H (2004) Five-fold twinned nanoparticles Encyclopaedia of Nanosci Nanotech., 3, 431–452 ... In the present work, the effect on size and size distribution of magnetite nanoparticles by using different additives is evaluated In addition, the morphological outcome of the as-formed particles ... region of 400 to 4000 cm–1 The transmission electron microscopy (TEM) micrographs of the samples were obtained using Philip CM 12 TEM operating at 80 kV One mg of sample was dispersed in ml of 3:2...
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Self assembly and rheology of block copolymer with polymer additives or particle suspensions
Ngày tải lên :
09/09/2015, 11:25
... Thermograms of F127 in presence of PEO of different M.W.; F127 conc = 20%; PEO conc = 6% 58 Figure 3.5 Effect of MW of 6% PEO on CMT of 20% F127 (top); Effect of PEO conc on CMT of 20% F127 ... 30 1.7.1 Effects of poly(ethylene oxide) 30 1.7.2 Effects of poly(acrylic acid) 32 1.7.3 Mixed PEO-PPO-PEO copolymers 33 1.7.4 Effects of polymeric additives on corn ... List of Tables LIST OF TABLES Table 3.1 Effects of molecular weight of PEO on CGT, tgel, τco and G0 of 20% F127 53 Table 3.2 Effects of PEO concentration on CGT, tgel, τco and G0’of...
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Effect of thickness on the physical, thermal and chemical properties of ultra thin polymer films
Ngày tải lên :
05/10/2015, 19:04
... inside the polymer film Moisture uptake and swelling of the polymers can lead to significant reliability problems Presence of small amounts of water in polymer thin films can affect a variety of thin ... the polymer and native oxide surface of silicon wafer was expected as compared to PMMA with the same substrate due to the chemistry of P2VP.29 Fryer et al 11 showed the dependence of Tg of polymer ... mobility of polymer segments near the substrate decreases as the interfacial energy increases and the nature of substrate -polymer interface dominates the Tg behaviour of ultra-thin films.11 1.2 Effect...
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Báo cáo khoa học: " Effect of the medical emergency team on long-term mortality following major surgery"
Ngày tải lên :
25/10/2012, 10:41
... suffered at least loss of one relative, for example, a partner or child, and two mothers of our cohort lost both of their children The majority of patients complained of nightmares, emotional ... federal request the Department of Psychotraumatology of the University of Heidelberg (Germany) assembled a comprehensive list of 400 qualified psychotherapists offering immediate support nationwide ... debridement and removal of devitalized tissues was effective in all but one patient This patient was already highly septic on arrival at our facility, requiring high doses of catecholamines He further...
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Báo cáo khoa học: "Effect of intern’s consecutive work hours on safety, medical education and professionalism"
Ngày tải lên :
25/10/2012, 10:45
... We believe, however, that development of ‘a sense of professionalism’ is not a function of whether a shift is 30 hours or is 16 hours, but is a function of the ethical priorities engendered through ... patient handoffs, medical education, and trainees’ sense of professionalism should be priorities as interventions are developed that reduce consecutive work hours to ensure the safety of patient ... research should study the effects of sleep deprivation and work schedule interventions on the performance of upper-level residents and other medical staff across a variety of disciplines We likewise...
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Báo cáo y học: " Effect of Weight Reduction on Cardiovascular Risk Factors and CD34-positive Cells in Circulatio"
Ngày tải lên :
25/10/2012, 10:51
... number of CD34-positive cells during treatment may provide an indicator of improvement of vascular health In our study, we analyzed the effect of weight loss on the improvement of lipid profile ... dieting program on the level of LDL in plasma Figure The improvement of CD34 positive cell number after diet Figure The effect of the dieting program on the level of cholesterol in plasma Regression ... Konstantinides S, Schäfer K Effects of Obesity and Weight Loss on the Functional Properties of Early Outgrowth Endothelial Progenitor Cells Journal of the American College of Cardiology 2010; 55:...
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Báo cáo y học: "Effect of Acute Administration of an Herbal Preparation on Blood Pressure and Heart Rate in Humans"
Ngày tải lên :
25/10/2012, 11:10
... results, because of the small numbers of subjects when the data were separated based on gender and caffeine intake, size effects were calculated for each of these analyses The effects of size were ... and is not a constituent of C aurantium Because of the known cardiovascular effects of nor-epinephrine and ephedrine, it has generally been assumed that consumption of p-synephrine and bitter ... the thermic effect of food increased by 29% in 17 females after they ingested 26 mg p-synephrine The thermic effect of p-synephrine was greater in males than females in the absence of a meal,...
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Báo cáo y học: " Effect of dose-escalation of 5-fluorouracil on circadian variability of it"
Ngày tải lên :
26/10/2012, 09:39
... series of studies has been performed to find a marker predictive of clinical outcome after treatment with the Ohtsu’s regimen [11-13] A total of measurements of the plasma concentration of 5-FU ... when all of the following criteria were satisfied on observation of the entire esophagus: 1) disappearance of the tumor lesion; 2) disappearance of ulceration (slough); and 3) absence of cancer ... increase in the rate of severe acute toxicities, according to the increase in the dose of 5-FU The values of the plasma concentrations of 5-FU are listed in Table The average of measurements made...
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Báo cáo y học: "Effect of 1,25-dihydroxy-vitamin D3 in experimental sepss"
Ngày tải lên :
26/10/2012, 09:57
... ± 0,06 b 1,28 ± 0,03 b a Significant effect of sham operation vs control (P
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Báo cáo y học: "Effect of corticosteroids on phlebitis induced by intravenous infusion of antineoplastic agents in rabbits"
Ngày tải lên :
26/10/2012, 09:57
... difference in the effect of DEX administration before VNR or after VNR Effect of PSL on DXR-induced phlebitis A 1.4 mg/mL solution of DXR was infused for 120 at mL/kg/hr with 1-mg/mL of PSL or normal ... part of the vein in all animals and in the distal part of the vein in of the animals Edema (Grades 1-3) was found in the proximal part of the vein in of the animals and in the distal part of the ... reduces the completion of chemotherapy The causative factors of phlebitis include the pH and osmotic pressure of the solution, the size of the vein used, the size and material of the catheter, and...
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Báo cáo y học: "Effect of antibodies on the expression of Plasmodium falciparum circumsporozoite protein gene"
Ngày tải lên :
02/11/2012, 10:14
... inhibitory effect [7] The number of mature liver schizonts increased in the presence of mAbs anti-CSP of P yoelii and the authors suggested that enhancement of infection could be a consequence of an ... the relative number of DNA molecules Triplicates of each sample and standard curve were performed in all assays The quantity of cDNA for csp was normalised to the quantity of the house keeping ... was 3.07 +/- 0.73 (mean +/- SD)] Efficacy of invasion was calculated as the percentage of ring infected erythrocytes of test cultures over the percentage of ring infected erythrocytes in control...
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Báo cáo y học: "Different effect of exercise on left ventricular diastolic time and interventricular dyssynchrony in heart failure patients with and without left bundle branch block"
Ngày tải lên :
05/11/2012, 11:32
... Furthermore, the shortening of diastolic time is an often overlooked mechanism of cardiac dysfunction The duration of diastole is a principal determinant of myocardial perfusion and of the blood volume ... evaluated the effect of exercise on heart rate corrected diastolic time in IDCM patients yielded the following findings: LBBB was a major determinant of the duration of LV systole, irrespective of the ... Duration of systole (ms) rest peak exercise Relative duration of systole (s/min) rest peak exercise Relative duration of diastole (s/min) rest peak exercise RV-LV delay (°) rest peak exercise Loss of...
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Effect of sensory education on school children’s food perception: A 2-yearfollow-up study
Ngày tải lên :
03/04/2013, 21:07
... (pictures of different foods and taste names) -learning and description of smell of different aromas (cardamom, carrot, vinegar, pineapple, lemon) -demonstration of retronasal odor (sip of vanilla ... again -off-flavors: fruit salad that has been contaminated with onion flavor -discussion of different off-flavors and their reasons -pictures of foods with different color, shape, size -pictures of ... Topic Content of the lesson Cereal products (porridge) (Raisio Ltd) -tasting and description of porridges made from oat, barley, wheat or rye -effect of temperature on sensory properties of porridge:...
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