applications of hyperbranched polymers in coatings as additives and in nanotechnology

... and integrity A new class of coating has been investigated intensively, namely conducting polymers Conducting polymers of various forms will be electrodeposited onto oxidisable metals and using ... deposited single and multilayered coatings The coatings were formed from the conducting polymers polyaniline and polypyrrole with substrates being 304L stainless steel and carbon steel It was found ... polarisation of stainless steel in the passive potential region will result in selective dissolution of iron, leaving chromium in the passive film Whereas in basic solution, the solubility of chromium increases,...

Ngày tải lên: 16/09/2015, 15:55

... time and scope, we have introduced some features of English morpheme system as well as its importance in learning English in general and spelling, developing vocabulary in particular It’s also ... time relationship • Second, some morphemes in the language can increase or decrease the intensity of verbs, adjectives… E.g.: The reduplication increasing intensity: • • • đau → đau điếng: hurt → ... acknowledgment of morpheme, especially in children, will help them much in spelling, as well as in improving vocabulary Part III Conclusion In short, English nowadays is become more and more important...

Ngày tải lên: 08/04/2013, 09:31

... theory was invented to describe randomness The main goal of the school was to accentuate fascinating links between different problems of physics and mathematics, where the methods of the Random ... non-trivial zeros, E Brezin et al (eds.), Applications of Random Matrices in Physics, 1–32 © 2006 Springer Printed in the Netherlands 2 APPLICATIONS OF RANDOM MATRICES IN PHYSICS in the critical strip ... “ “ “ 33 E Brezin et al (eds.), Applications of Random Matrices in Physics, 33–88 © 2006 Springer Printed in the Netherlands 34 APPLICATIONS OF RANDOM MATRICES IN PHYSICS Having collected many...

Ngày tải lên: 22/03/2014, 09:20

... treasure trove of information and a joy to read, bringing each named reaction to life and conveying a strong sense of its utility and dynamism The inclusion of an up-to-date reference listing offers ... TABLE OF CONTENTS • SEARCH TEXT In the case of complex rearrangements, numbering of the initial carbon skeleton has been applied in addition to the colors to facilitate understanding Again, the ... English The name of the author of a specific synthetic example was chosen as the one having an asterisk in the reference In order to make the book as user-friendly as possible, we have included a comprehensive...

Ngày tải lên: 03/04/2014, 12:15

... living cells FCS instrumentation for use in living cells On the left hand, there is schematic FCS setup including laser excitation filters, emission filters, confocal pin hole and single photon detector ... cost, fast processing and high sensitivity properties In the long term, spectroscopy fingerprinting may become an excellent tool to classify microorganisms into their respective groups, genus and ... concentration of diagnostic sample Tryptophan which is fluorophore in UV is present in both viruses and host bacterial protein Indole group of tryptophan residues are major source of UV absorbance and...

Ngày tải lên: 18/06/2014, 15:20

... (Takaya, Shoko, and Takashi; Stenger-Smith, Chafin, Kline, Ostrom, and Quintana), as well as conducting and light emitting materials (Shao; and Luius, Garci-Verdugo, Burguete, Andrio, Molla, and Compaủ) ... Bowyer, and McCluskey), and even as unusual components of polymers (Vidinha, Lourenco, Nunes, Duarte, and Barreiros) Similarly, ionic liquids are finding increasing use in the popular area of nanomaterials ... sustainability Biomass has the potential to serve and excel as a sustainable source of energy and biomass resources are useful in many industrial applications The basic chemical transformations include...

Ngày tải lên: 29/06/2014, 09:20

... different points of view on the use of conducting polymers in various sensors, the use of conducting polymers to obtain nanomaterials, and finally, a fractal view of a conducting polymer membrane Finally, ... environment in areas of usual applications (water, polluted air) and industrial areas (processes involving aggressive and hazardous reagents) and the use of rare and expensive metals, in some special applications ... constant between E1 and E2 and zero at other values of E, was used Fig Aspects on Fundaments and Applications of Conducting Polymers shows both linear and nonlinear curves, resembling experimental...

Ngày tải lên: 29/06/2014, 09:20

... aspect of a self-assembled structure is particulary interesting and might offer a number of future applications in drug delivery, nanofabrication and surface coatings Engineering the Bacterial ... extremely rich in tyrosine (30.3%) and lysine (28.8%) residues [32] However, it was recently shown that CotC is assembled into at least four distinct protein forms, ranging in size between 12 and 30 ... CotB∆105 (275 amino acids) or CotC (66 amino acids) as carrier proteins (all in blue) The three 27-amino-acids repeats of full lenght CotB and the part of them remaining in CotB∆105 are in black Purple...

Ngày tải lên: 11/08/2014, 00:22

... efficiency of PVP and SE gradually increased on decreasing the PVP molecular weight and increasing the alkyl chain of SE respectively Using thermodynamic studies, the disaggregation effect was found ... Further emphasis was put forth in modification of porphyrin nucleus to induce specificity, such as to remain preferentially inactivated in absence of light Low cytotoxicity in absence of laser irradiation ... the kindness of Asst Prof Gigi Chew, Asst Prof Eng Hui and A/P Victor Yu to let me use the zetasizer, epifluorescence and confocal microscope I’m highly indebted to National University of Singapore...

Ngày tải lên: 08/09/2015, 19:22

... 27 () 44 and () 50 C 166 Fig 5-7 Activity of () fresh 5Pd:Bi/C and the used catalyst after () washing with water and drying, (▲) washing with water and reducing in H2, and () washing with ... eliminating waste and avoiding the use of toxic and/ or hazardous reagents and solvents in the manufacture and application of chemical products From feedstocks to solvents, synthesis and processing, ... research on the synthesis of fine chemicals using solid base as catalyst has increased over the past decades The first studies of solid base catalysts were by Pines et al [5] in 1955 who showed that...

Ngày tải lên: 09/09/2015, 10:17

... vinylene) in conjugation of biotin-dimethyl viologen and avidin in water (56) In the absence of avidin, the small biotin group in B-MV would not hinder association of the viologen portion of B-MV ... r6) This property has been used in FRET techniques ranging from the assay of interactions of an antigen with an antibody in vitro to the real-time imaging of protein folding in vivo (26, 27) The ... conjugated polymers, and thus the conjugated polymer would result in strong fluorescence quenching But in the presence of avidin, the avidin can bind with the biotin group in B-MV and thus preventing...

Ngày tải lên: 11/09/2015, 09:16

... change in EOF Comments Efficiency and resolution may decrease when lowered Joule heating may result when increased Buffer pH EOF decreased at Most convenient and useful low pH and increased method ... applied and the potentials across the electrodes are measured and compared Miniaturization is playing an increasing role in the development of CE It may change the pattern of conventional CE and bring ... chains of single- stranded DNA, which stick together with a slight twist and their "bases" can interact with each other This construction was confirmed by Waston and Crick in 1953 DNA sequencing...

Ngày tải lên: 11/09/2015, 14:27

... Inductively coupled plasmas are the simplest type of plasmas; very efficient in sustaining the plasma; reactor easy to build and simple to operate • Quartz chamber 10 cm in diameter with a window ... tremendous worldwide interest • Integration of this emerging field into engineering and science curriculum is important to prepare the future generation of scientists and engineers ... (“extremophiles”) is of interest in astrobiology • HSP 60 can be purified from cells as a double-ring structure consisting of 16-18 subunits The double rings can be induced to self-assemble into nanotubes Extremophile...

Ngày tải lên: 21/02/2014, 17:20

... and 103.7°, respectively An increase in the contact angle of water can be seen with an increase in reaction time This increase in contact angle could be due to an increased grafting density and ... weak interaction, and a polymerinterface strong interaction can be seen in Figure 2.2-2 This research aids in understanding the behavior of thin polymer films Free-standing films have increased ... viscoelastic cooperativity of thin films, and the second concentrates on the morphological behavior of polymer brush films Industrial use of thin films has increased for several reasons including...

Ngày tải lên: 23/03/2014, 01:20

... backbone chain In this case, it's a polystyrene chain with chains of polybutadiene growing out of it Food Packaging Materials These rubbery chains hanging off of the backbone chain some good things ... to gas, ease of processing, and ease of forming Milk, water, juice, cosmetic, shampoo, dish and laundry detergent bottles; yogurt and margarine tubs; cereal box liners; grocery, trash and retail ... tubing, wire and cable insulation, film and sheet, construction products such as pipes, fittings, siding, floor tiles, carpet backing and window frames Packaging, loose-leaf binders, decking,...

Ngày tải lên: 01/08/2014, 07:20

... solution casting, spin casting and solvent-free method of hot roll-milling • The exploration of the use of lasers to modify the surface of PCL films and understanding the mechanisms behind it, and ... the stages of initial preparation of PCL thin films using methods of solvent casting, two-roll milling and spin casting (Page 32) Fig 3.2 Stages of heat treatment and biaxial drawing (Page 32) ... degree of Doctor of Philosophy in the Department of Mechanical Engineering at the National University of Singapore under the supervision of Professor Teoh Swee Hin and Associate Professor Hong Minghui...

Ngày tải lên: 14/09/2015, 08:36

... protection has increased and stands as the main alternative to methyl bromide Lately, insect resistance to phosphine has become an important issue for effective grain treatment (Nakakita and Winks, ... phosphine is a quick and effective tool for the control of stored-product insect pests In view of the scheduled phaseout of methyl bromide under the Montreal protocol, the role of phosphine in grain ... followed by CS2 and C7 H6 O CS2 , according to Winburn (1952), was one of the most effective grain fumigants as viewed from efficiency and low cost points of view C7 H6 O occurs in kernels of bitter...

Ngày tải lên: 25/10/2013, 05:20

... test was within fifteen minutes During the test, the teacher worked as a cassette player and examiner The marking was done with the same way of assessment and then was analyzed in turn The class ... within the limitation of this paper, the study can only assure the role of songs as a motivator in teaching and learning listening skill and stops at proving the ability of songs in improving ... regain their interest in learning and then the listening skill better In addition to that, songs offer an effective means of improving listening skills including: word 27 recognition, awareness of...

Ngày tải lên: 29/01/2014, 10:33

... used as a weapon of war in eastern DRC and is leaving thousands of women injured with vesicovaginal fistulas The surgery to repair a fistula is delicate and often complex and is available free of ... number of African countries, including Burundi, the Democratic Republic of Congo (DRC), Liberia, Rwanda, Sierra Leone, and Sudan, where thousands of women and girls as old as grandmothers and as ... assault, including rape, mass rape, and the forced insertion of objects into a woman’s vagina A woman or girl who sustains this injury is rendered incontinent of urine and/ or feces Together with...

Ngày tải lên: 12/02/2014, 23:20

... “people,” and shapes its destiny, is the very business of Ethnology to explain So likewise in hygiene and medicine, in ethics and religion, in language and arts, in painting, architecture, sculpture and ... articles of barter and commerce b The Esthetic Arts.—Theory of the sense of the beautiful Decorative designs in line and color Skin-painting Tattooing Sculpture and modeling Music and musical instruments ... smelting, casting Results of exposure Analysis of alloys Coins, etc Study of pottery Pastes; burning; glazing; forms; decorative designs; painting and coloring Textile materials; ancient cloth and...

Ngày tải lên: 13/02/2014, 05:20