characteristics of glass ionomer cement

... of the glass component of dental silicate cements However, due to poor physical and mechanical properties this material was later replaced by glass ionomer cements The beneficial aspects of glass ...                                                                                                                                                     Chapter 2    2.3: Glass ionomer containing restorative materials 2.3.1: Glass ionomer cements Glass ionomer was discovered to overcome the drawbacks of silicate cements Alan Wilson and ... 2.3.2: Resin modified glass ionomer Resin modified glass ionomer cements (RMGIC) were developed to control the early moisture sensitivity of conventional glass ionomer cements Resin modified...

Ngày tải lên: 06/10/2015, 21:07

... List of Tables and Figures vi Summary xi Notice Chapter xiii 1.1 Clinical performance of glass- ionomer restoratives 1.1.1 Longevity of glass- ionomer restoratives in vivo 1.1.2 Failure of glass- ionomer ... an important role in the performance of glass- ionomer restorative in vivo 1.1.2 Failure of glass- ionomer restoratives in vivo In terms of in vivo evaluation of dental restoratives, the most commonly ... risk of caries were excluded It can be seen that longevity of glass- ionomer restoratives varied widely between different clinical surveys Like other dental restoratives, the longevity of glass- ionomer...

Ngày tải lên: 15/09/2015, 17:11

... Chemical Characteristics of U.S DDGS Physical and chemical characteristics of distiller’s dried grains with solubles (DDGS) vary among sources and can influence its feeding value and handling characteristics ... (lightness of color) and b* (yellowness of color), with an increase in a* (redness of color) Similar results were also reported by Ganesan et al (2005) Table The Effect of the Rate of Solubles ... they evaluated color in batches of DDGS where approximately 0, 30, 60 and 100% of the maximum possible of syrup was added to the mash before drying Actual rates of solubles addition to the mash...

Ngày tải lên: 08/08/2012, 10:03

... vertical dB beam width of about 30◦ and null to null beam width of nearly 60◦ Using the modified antenna, a number of the sets of data were repeated A comparison of one of the data sets taken ... transmission and reflection characteristics of the walls and objects will be different, likely altering the amplitude characteristics of the channel However the temporal and angular characteristics will ... clusters and the arrival times of rays within clusters The time of arrival of each cluster is an exponentially distributed random variable conditioned on the time of arrival of the previous cluster...

Ngày tải lên: 20/11/2012, 11:32

... amounts of food waste and sewage sludge were added in individual bottles Each bottle was supplemented with 200 mg of KH2PO4, 14 mg of MgCl2•4H2O, mg of Na2MoO4•4H2O, mg of CaCl2•2H2O, 2.5 mg of MnCl2•6H2O, ... Journal of Water and Environment Technology, Vol.1, No.2, 2003 and 0:100 for 3.0 and 5.0 % of total VS concentrations could not be conducted because of low VS concentration of sewage sludge 20 mL of ... Stoichiometrically, Clostridium sp can produce moles of hydrogen with mole of n-butyrate or moles of hydrogen with mole of acetate from mole of hexose In most cases using soluble defined substrates,...

Ngày tải lên: 05/09/2013, 08:40

... surface characteristics of H2-producing sludge in acidogenic fermentative process is available in literature Therefore, the main objective of this study was to explore the surface characteristics of ... using the software of Fractal Image Process System (FIPS) developed by the University Science and Technology of China The hydrophobicity of sludge was determined by measuring contact angle of sludge ... concentration of 25.0 g L-1 (Run 1) and pH 6.0, temperature 30.0oC, sucrose concentration of 20.0 g L-1 (Run 2), were respectively carried out to investigate the time evolution of the sludge surface characteristics, ...

Ngày tải lên: 05/09/2013, 09:08

... the first days of incubation period and became persistent This degradation of binding sites was also in line with the increment of labile Zn concentration during the first days of incubation Consequently, ... weeks of pre-incubation period, indicating the availability and activities of microorganism in river water However, as shown in Fig 3, there was no considerable change of DOC in the mixture of DOM ... of DOM of WWTP effluents and pre-incubated river water within the first week of incubation Slight DOC reduction (14%) was observed after one month of incubation In contrast to the results of the...

Ngày tải lên: 05/09/2013, 10:15

... Fig - Outline of the experimental field and the water treatment apparatus - 422 - Journal of Water and Environment Technology, Vol 8, No.4, 2010 Paddy field The characteristics of the paddy field ... (Miura et al., 2007) Evaluation of denitrification activity of microorganisms Batch experiments for the evaluation of DNR, and a quinone analysis for the evaluation of the microorganism community ... the electron transport chain for respiration of microorganisms The major type of quinone contained in each microorganism depends on the features of the microorganism (Collins’ and Jones, 1981)...

Ngày tải lên: 05/09/2013, 10:15

... cultivation and the ratio of the increased amount of SS to the increased amount of Chl.a was higher than that of the algae Increased amount of SS were higher in the cases of high nitrate concentration ... part of Japan The western side of the region faces the Seto Inland Sea, around which are Fig.1 - Location of study area and distribution of citrus groves in Matsuyama region - 112 - Journal of ... more of the potential of the denitrifying activity was exploited The dissolution rate of organic matter from the sediment was sufficient, and limitation of denitrification caused by depletion of...

Ngày tải lên: 05/09/2013, 10:17

... Journal of Energy and Environment (IJEE), Volume 1, Issue 3, 2010, pp.411-430 421 % of Premixed combustion % of Diffusion combustion Trend line of % of diffusion combustion Trend line of % of premixed ... volume, JT 50:50 = Blend of 50 % of jatropha oil methyl ester and 50 % of tallow oil methyl ester by volume, SFCt 50:50 = Blend of 50 % of sunflower oil methyl ester and 50 % of coconut oil methyl ... Where, JT 80:20 = Blend of 80 % of jatropha oil methyl ester and 20 % of tallow oil methyl ester by volume, JP 50:50 = Blend of 50 % of jatropha oil methyl ester and 50 % of palm oil methyl ester...

Ngày tải lên: 05/09/2013, 15:28

... bend of bridging secondary amine of the blended resin, and the peak at 1493 cm-1 can be attributed to the methylene C-H bend of the blended resin[30] The –OH bending vibration of –COOH group of ... Effect of pH on the adsorption of Ni2+ ions The effect of the initial Ni2+ concentration on the Ni2+ adsorption capacity of the blended resin at 298 K and pH 6.6 was studied with g/L of blended ... chelating group, the pH dependencies of the Ni2+ ion have to be determined The effect of pH on the adsorption capacities of Ni2+ were examined by varying the initial pH of the solutions The solution...

Ngày tải lên: 05/09/2013, 16:11

... Sources of Information Perspectives of Information Module 3: Characteristics of Information 57 ! Overview Slide Objective To provide an overview of the module topics and objectives " Categories of ... the four categories of information present in a set of information Module 3: Characteristics of Information 65 ! Sources of Information Slide Objective To provide an overview of the section " Artifacts ... process of gathering information From the outset, you need to be aware of the different types and characteristics of information to ensure that you gather the appropriate information The purpose of...

Ngày tải lên: 10/12/2013, 17:15

... percentage of the forward current will contribute to the generation of light At sufficient current densities, the percentage of forward current which produces light is almost a constant For an IRED of ... amount of light generated by the IRED when a heat sink is used This is a clear example of the law of diminishing returns: increasing the forward drive current will increase the amount of light ... current density (Amps/cm2 of junction area) IREDs are commonly considered to emit monochromatic light, or light of one color In fact, they emit light over a narrow band of wavelengths, typically...

Ngày tải lên: 23/12/2013, 00:16

... a bunch of divers laying cables across the sea bed Every time anyone mentions the cloud now, I know it isn't ... and it isn't in the sky; it's wires under our feet Ent husiasm isn't everyt hing I heard a number of very eager speakers whose content evaporated a few moments after they stopped talking I even ... you're doing corporate presentations, the same rules apply Stories the right stories take facts out of the abstract and make them engaging and memorable Images only work when they say something And...

Ngày tải lên: 07/01/2014, 15:28

... have a sufficient number of groups, make sure that at least two groups are looking for examples in the information category The corporate vision and profile, as well as some of the comments from ... study Prepare your own list of sources of information in the case study This activity should be brief Use it to verify that students understand the three sources of information and are able to ... correspondences Instructor Notes Module 3: Characteristics of Information Questions for Class Discussion The following questions can help start a discussion of the activity: ! Did you find a particular...

Ngày tải lên: 17/01/2014, 09:20

... properties of the powder were studied In the TL glow curve of LiF:Mg,Cu,Na,Si powder the main dosimetric peak appeared in the range of 227-247 o C and the ratio of the height of the main peak to that of ... temperature of 800 o C, the intensity of the main peak reaches a maximum value 228 V.T.T Ha et al / VNU Journal of Science, Mathematics - Physics 23 (2007) 225-231 Fig Glow curves of a) LiF:Mg,Ti, ... between glow curve shapes of TLD-100 chips annealed either in He, N2 or in air It may be of interest to investigate the influence of annealing atmosphere on TL glow curve of our LiF:Mg,Cu,Na,Si...

Ngày tải lên: 13/02/2014, 04:20

... an analysis of the characteristics of these workers over time (1992– 96), see Characteristics of Small Business Employees and Owners, 1997 (U.S Small Business Administration, Office of Advocacy, ... and lawyers’ offices) For small firms, 52.2 percent of the workforce (34.9 million employees) Age distribution of employees in private firms, by size of firm, 1998 [In percent] Size of firm Under ... interval of ±0.4 percent 14 Monthly Labor Review April 2000 Table Selected gender, racial, and ethnic characteristics of employees in private firms, by size of firm, 1998 [In percent] Size of firm...

Ngày tải lên: 17/02/2014, 21:20

... replacement of 316Glu with Ala had no effect on the binding ability of [3H]BPA All these results clearly indicate the crucial role of Arg316 for the ERRc receptor in ligand binding This kind of ... ligand-binding pocket The phenol-hydroxyl group of 4-OHT, an estrogen receptor Receptor binding mode of bisphenol A in human ERRc Table Receptor binding characteristics of ERRc and its mutants by [3H]BPA ... the b-carbon of the Ala side chain, whereas Arg has -CH2CH2NHCH(¼NH)NH2 These groups are capable of making hydrogen bonds with the phenol-hydro- xyl group of BPA and also with that of 4-OHT, providing...

Ngày tải lên: 18/02/2014, 16:20

... see “Profile of Mutual Fund Shareholders, 2011,” ICI’s full report of the findings of the 2011 Annual Mutual Fund Shareholder Tracking Survey “Profile” presents a comprehensive overview of mutual ... age of individuals heading mutual fund–owning households FIGURE Mutual Fund Owners Represent a Variety of Demographic Groups Percentage of U.S households owning mutual funds, 2011 Age of head of ... of the U.S population For additional discussion of incidence of mutual fund ownership in the United States, see Bogdan, Holden, and Schrass 2011 For additional detail on the characteristics of...

Ngày tải lên: 19/02/2014, 15:20

... Fragments of HSQC and HMBC spectra of compound Labels illustrate assignment of the amide linkage between the amino group of Asp and the carboxyl group of GalA residue E Scheme The structures of oligosaccharides ... Amide linkage between C-6 of residue E and an amino group of the aspartic acid was identified on the basis of the HMBC correlation between H-2 of aspartic acid and C-6 of the GalA E, thus showing ... analysis is a result of the reduction of glucuronolactone The 3-amino-3,6-dideoxyhexose is quantified approximately because of the lack of a quantitative standard compound NMR spectra of both oligosaccharides...

Ngày tải lên: 19/02/2014, 16:20