comparative corrosion resistance of thermoplastic and thermoset polymers

... attack is of interest 15.3 Record the number of attacked sites on each side of the specimen (Methods D and F), the maximum depth of attack (Methods D and F), and the average depth of attack (Method ... E, and F 16.2 Bias—Because the resistance to pitting and crevice corrosion of stainless steels and related alloys in a ferric chloride solution is defined only in terms of this method, the resistance ... Maximum pit depth on edges of specimens Number of attacked sites on each side of the specimen, Methods D and F Maximum depth of crevice corrosion Average depth of crevice corrosion cm Machined As...

Ngày tải lên: 13/01/2016, 17:51

... ESC Figure PCA and NMF analysis of the gene-expression data of mouse MSC, MAPC-1, MAPC-2 and ESC PCA and NMF analysis of the gene-expression data of mouse MSC, MAPC-1, MAPC-2 and ESC (a) Percentage ... transcriptomes of one clone of rat MAPCs (rMAPC-1) expressing high levels of Oct4 mRNA and protein and one clone of rat cells that expressed 1,000-fold lower levels of Oct4 mRNA and differentiated ... (NMF) and kmeans clustering to analyze their transcriptomes and determine the relationship between MAPCs, MSCs and ESCs, using mouse and rat MAPCs and mouse MSCs and ESCs Results Isolation and...

Ngày tải lên: 14/08/2014, 08:20

... floors and roofs not meeting the criteria of 2.2.5.1, and consisting of two or more layers of different types of concrete, or of lay- Fig 2.1—Fire resistance of two-layer concrete walls, floors and ... than in of concrete 2.2.6 Insulated floors and roofs—Use Fig 2.3 (a), (b) and (c) or Fig 2.3.1 (a) and (b) to determine the fire resistance of floors and roofs consisting of a base slab of concrete ... FIRE RESISTANCE OF CONCRETE AND MASONRY CONSTRUCTION Fig 2.3 (a), (b), and (c)—Fire resistance of concrete base slabs with overlays of insulating concrete, 30 lb/ft3 Fig 2.3.1(a) and (b)—Fire resistance...

Ngày tải lên: 24/10/2014, 17:40

... diffusion of O2 to the iron surface and reduce the corrosion current this results are consistent with the results of Liang et al.[18] Figure Corrosion rate of bare steel and PANi coated steel and the ... possibility of improving the corrosion resistance of buried steel by coating it with polyaniline (PANi) while subjected to different corrosive mediums as sand containing known amounts of water NaCl and/ or ... Examination of the performance of the buried PANi coated steel against corrosion Potentiodynamic examination (Tafel test) was used for the examination of the corrosion resistance of PANi coated...

Ngày tải lên: 27/04/2015, 09:06

... anaerobic mesophilic and thermophilic conditions, the variation of MO at concentration of 100, 200, 400, 600, 800 and 1,000mg·L-1 and RB4 at concentration of 100, 200, 300, 400, 500 and 600mg·L-1 supplemented ... Journal of Water and Environment Technology, Vol 6, No.1, 2008 absorbing and reflecting sunlight, which in turn interferes with photosynthesis and aquatic ecosystem and, (2) a wide range of textile ... used was 200mg·L-1, and treatment conditions were as described above Effect of dyes and temperatures on dye decolorization To explain the effect of dyes and temperature, 35oC and 55oC, on decolorizing...

Ngày tải lên: 05/09/2013, 09:38

... Comparative behaviour and ecology 95 considered the importance of roots and tubers as efficient stores of nutrient and water with the added advantage of availability over most of the year and ... wide range of foods People from at least the time of the common ancestor of Neanderthals and Moderns have been opportunistic omnivores capable of handling a wide range of foods, animal and almost ... heterogeneous landscapes The intensity of lithic re-use and reduction also reflects features of the landscape and the methods of resource exploitation Correlates of lithic re-use and reduction...

Ngày tải lên: 01/11/2013, 07:20

... equivalent volumes of M urea solution and then run on SDS ⁄ PAGE Lanes a and d, in the absence of both TnC and Ca2+; lanes b and e, in the presence of TnC and the absence of Ca2+; lanes c and f, in the ... presence (lanes m–q) of equimolar amounts of Akazara scallop TnC Lanes h and m, ATnI-52K; lanes i and n, ATnI-19K; lanes j and o, ATnI1)128; lanes k and p, ATnI130)252; lanes l and q, ATnI232)292; ... absence of both urea and KCl and the presence of 0.5 mm CaCl2, whereas ATnI130)252, RTnI1)116, and RTnI96)181 strongly bound to TnCs These results suggested that the inhibitory region and the...

Ngày tải lên: 20/02/2014, 01:20

... ÔServeis Cientifico-TecnicsÕ of the University of Barcelona, using the 488 nm line of an argon laser and standard optical emission filters Percentages of cells at each phase of the cell cycle were estimated ... wavelength of 480 nm and an emission wavelength of 555 nm The fluorescence intensity emitted was translated into concentrations of drug using a daunorubicin or WP631 standard curve, and expressed ... Proliferation of Jurkat cells treated with a range of concentrations of daunorubicin or WP631 is illustrated in Fig Data were obtained after 24 h (panels A and B) and 72 h (panels C and D) No significant...

Ngày tải lên: 20/02/2014, 23:20

... Inactivation of antibiotics and the dissemination of resistance genes Science 264, 375–382 Ginns CA, Browning GF, Benham ML, Anderson GA & Whithear KG (1996) Antimicrobial resistance and epidemiology of ... Clinical Laboratory Standards (NCCLS 1993) In addition, E coli organisms isolated from chicken and Table Comparison of pattern of resistance of E coli isolates from chicken and patients E coli-chicken ... poultry and its possible impact on human health Our aims were to investigate and compare the patterns of resistance of E coli isolated from poultry industry workers, patients and chicken, and to...

Ngày tải lên: 08/03/2014, 09:20

... study of polymers III Technique of mechanical tests of vulcanizates of rubber and plastics Rubber Chem Tech., 13, 904–917 Haward, R.N (1942) Extension and rupture of cellulose acetate and celluloid ... in the range of temperatures and strain rates of interest A linear dependence of yield stress as a function of log strain rate can be observed over a large interval of strain rates and temperatures, ... quality, safety, and mechanical performance (e.g stiffness, strength and impact resistance) Mechanical performance is generally optimized by trial -and- error until the functional demands of the design...

Ngày tải lên: 09/03/2014, 00:20

Ngày tải lên: 16/03/2014, 03:20

... of elevated ESP activity In this series of assays, the formation of epithionitrile accounted for a maximum of 85% of the amount of total hydrolysis products The results showed that addition of ... addition of Fe2+) to 87.2% (0.01 mm Fe2+) and 93.9% (0.5 mm Fe2+) of the total amount of hydrolysis products No epithionitrile was formed by myrosinase in the presence of Fe2+ without addition of ESP, ... activity of ESP measured in crude seed extracts of Lepidium sativum has been shown to increase in the presence of both Fe2+ and Fe3+ [24], whereas no effect of Fe2+ on the activity of ESP in...

Ngày tải lên: 23/03/2014, 11:20

... learning and developed civilization of Normandy, puting England into the full stream of European culture and thought (Eckersley 423) For the next three centuries all the Kings of England spoke ... every man’s hand against one, hand it to sb, attempt and violence can be rendered by to fight hand in hand, lay violent hands on sb, for power and influence can be used to have long hands, to be ... hands or a hidden hand, the notion of success can be represented by to win hands down, while that of failure by to fall on one’s feet 27 1.9 Method of idiom analysis A comparative analysis of...

Ngày tải lên: 07/04/2014, 02:22

... cladocerans, and green algae, and effects of organic and inorganic substrate on TiO2 toxicity Nanotoxicology (2), 91e97 Handy, R., Owen, R., Valsami-Jones, E., 2008a The ecotoxicology of nanoparticles and ... nano-ZnO and bulkZnO were 38 (95% CI: 30, 45) and 65 (95% CI: 55, 78) mg/l of Zn, Fig Aggregate size distribution of nano-ZnO and bulk-ZnO suspensions using DIC microscopy The average diameters of ... uptake and response of immortalized brain microglia to nano-TiO2 (Long et al., 2006) and in the bioavailability of nanoparticles to plant roots, algae, and fungi (Navarro et al., 2008) Nano-ZnO and...

Ngày tải lên: 06/05/2014, 13:22

... Jukka Pennanen, professor of cultural anthropology at the University of Oulu, Finland, directed fieldwork in the Sámi community of Kultima, Finland, during the spring and early summer of 1999 with ... Anthropology of Women New York: Monthly Review Press Rosaldo, Michelle 1980 The Use and Abuse of Anthropology: Reflections of Feminism and Cross-Cultural Understanding Signs: Journal of Women in Culture and ... servant and laboring class of Ile la Crosse and many of the outposts was largely a product of unions between local Cree women and French Canadian, Scottish, and English post managers, clerks, and...

Ngày tải lên: 11/06/2014, 13:57

... surgery and standard radiotherapy alone [12] In Taiwan, for public healthy insurance, cisplatin is the backbone of the chemotherapy regimen as a component of IC and CCRT in the treatment of locally ... the date of start of chemotherapy to the date of death or most recent follow-up Progression free The median age of the patients was 53 years (range 3672 years), and fifty-five (96.5%) out of 57 ... coordinated immunohistochemical examinations of tumor specimens and data analysis, and drafted the manuscript CYC and HTT participated in the interpretation of data and conducted immunohistochemistry analysis...

Ngày tải lên: 18/06/2014, 19:20

... surgery and standard radiotherapy alone [12] In Taiwan, for public healthy insurance, cisplatin is the backbone of the chemotherapy regimen as a component of IC and CCRT in the treatment of locally ... the date of start of chemotherapy to the date of death or most recent follow-up Progression free The median age of the patients was 53 years (range 3672 years), and fifty-five (96.5%) out of 57 ... coordinated immunohistochemical examinations of tumor specimens and data analysis, and drafted the manuscript CYC and HTT participated in the interpretation of data and conducted immunohistochemistry analysis...

Ngày tải lên: 20/06/2014, 03:20

... greatest burden of HIV infection and where large-scale ignorance about the cause and prevention of the disease prevails Several studies have reported the knowledge, attitude, and behavior of identified ... meaningful responses because of their psychosis were excluded Over the same period of time, a total of 69 consecutive and consenting attendees of the outpatient endocrinology clinic of the Lagos State ... A: HIV/AIDS information and knowledge: a comparative study of Kenyan and Swedish teenagers Scand J Soc Med 1997, 25:111-118 Abstract Horwath E, Cournos F: Schizophrenia and other psychotic disorders...

Ngày tải lên: 20/06/2014, 08:20

... relative strengths of their interactions with phonons and electrons Thus, it is important to study and predict the heat transfer and especially the influence of the height of superlattice’s interfaces ... of parameters has been determined to produce a realistic atomic configuration of interfaces The model structure consists of two slabs in contact: one of Si with a diamond structure, and one of ... ps using an integration time step of fs The heat sources are placed in the extremes of the structure, and one layer of Si and Ag is frozen to block the movement of Si atoms in the z- direction...

Ngày tải lên: 21/06/2014, 04:20

... and water absorption was determined by a modification of ASTM standard D 1037-96a [13] Weathered specimens, both treated and untreated, and unweathered southern pine were conditioned at 27°C and ... rate of zinc from nano-ZnO (1% filled diamond, 2.5% filled square and 5% filled triangle) and 1% ZnSO4 (9) from SPtreated blocks [6, 7] Fig Weathering of nanoZnO treated wood after 12 months of outdoor ... 2.5 and 5.0% nano-ZnO showed a loss of 65 and 58% treatment, respectively Conclusion Nano-zinc oxide-impregnated SP (1.6 kg/m3 retention) demonstrated leach resistance in laboratory tests and...

Ngày tải lên: 21/06/2014, 17:20