characterization of silicas analytical properties

... Institute of Malaysia revised the dirt levels of SMR CV60, CV50, and L from 0.05 to 0.025, that of SMR 10 from 0.10 to 0.08, and that of SMR 20 to 0.016 In addition, Malaysia has produced grades of ... a cessation of sudden deformation when the rotor of the Mooney viscometer stops The stress relaxation of rubber is a combination of both elastic and viscous response A slow rate of relaxation ... levels of up to 25% of the total polyisoprene content, will also reduce the viscosity of the compound with little loss in other mechanical properties It also allows for better control of component...

Ngày tải lên: 27/06/2014, 06:20

... (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 ... color Corn-sorghum blends of DDGS are also somewhat darker in color than corn DDGS because of the bronze color of many sorghum varieties When a relatively high proportion of solubles are added to...

Ngày tải lên: 08/08/2012, 10:03

... concentration was varied from 2.5 to 5.0% where, 2.5 g and 5.0 g of wheat straw were added The effect of temperature and the effect of combination of xylanase, cellulase, and β-glucosidase were examined ... reesei with the enzyme activity of 700 IU/g, and Novozyme 188 is composed of Cellobiase from Aspergillus niger with the enzyme activity of 250 IU/g The effect of temperature was examined where ... 3.0 g of glucose and 0.1 g of yeast extract was added to distilled water to produce 100 ml of P2 medium in a 250 ml glass vial This vial was sterilized at 121°C for 15 Approximately 1.0 ml of each...

Ngày tải lên: 05/09/2013, 15:28

... various aspects of OFETs, including the synthesis of new materials, preparation and characterisation of organic thin films, characterisation of device properties and the development of new device ... Organic Electronics Structural and Electronic Properties of OFETs Edited by Christof Wöll WILEY-VCH Verlag GmbH & Co KGaA The Editor Prof Dr Christof Wöll Lehrstuhl für Physikalische Chemie I ... fundamental understanding of the basic mechanism and properties of such OFETs, a national research initiative (supported by the DFG within the framework of the focus program 1121 OFET) was established...

Ngày tải lên: 16/02/2014, 19:20

... independent of the motions of the disordered N-terminal tail Production of soluble rat and mouse CD69 For in vivo stability studies in mice, it was desirable to compare the properties of the variant ... purified using Protocol II Characterization of the purified soluble proteins The identity of the prepared protein was confirmed by sequence mapping of tryptic digests with MALDI-TOF MS with a good sequence ... Instruments, Malvern, UK) Estimates of hydrodynamic radii of the expected molecular species were calculated with the software hydropro [26] The structures of monomers and dimers of the human CD69 in the...

Ngày tải lên: 16/03/2014, 04:20

... 12 D-76128 Karlsruhe, Germany Prof Dr Robert W Dibble University of California Dept of Mechanical Engineering Etcheverry Hall 94720 Berkeley, CA, USA Library of Congress Control Number: 2006927345 ... ways, and storage in data banks Duplication of this publication or parts thereof is permitted only under the provisions of the German Copyright Law of September 9, 1965, in its current version, ... copyright All rights are reserved, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction...

Ngày tải lên: 02/04/2014, 15:49

... Thermodynamic Properties of cis-2-Butene 2-198 Thermodynamic Properties of trans-2-Butene 2-199 Thermodynamic Properties of Carbon Dioxide 2-200 Thermodynamic Properties of ... Thermodynamic Properties of Methane 2-234 Thermodynamic Properties of Methanol 2-235 Thermodynamic Properties of 2-Methyl Butane (Isopentane) 2-236 Thermodynamic Properties of ... Chloroform (R20) 2-207 Thermodynamic Properties of Cyclohexane 2-208 Thermodynamic Properties of Decane 2-209 Thermodynamic Properties of Deuterium...

Ngày tải lên: 19/07/2014, 00:23

... growth of the importance of oilseeds in the national economy of Sudan, the high demand to look for a new source of oil and the sufficient availability of this plant in Sudan, the scarcity of scientific ... the beach of the Nile River in the north of Sudan The green parts of the plant are used as animal feeds, the seeds are used as a masticatory article and the residue is used as a source of heat ... new sources of oil The promising, unconventional and new sources of oil in the Sudan are the available species of the family Cucurbitaceae (indigenous to Africa).5 Considerable amounts of oil-rich...

Ngày tải lên: 07/08/2014, 14:20

... the performance of various systems Important emissions data for IGCC projects are presented at the end of the current review Additional information is presented below on the status of coal gasification ... gasification environmental effects A comparison of the impacts on water streams of various processes is given in Table Pruschek et al (1995) discusses the removal of pollutants from a coal gasification ... (1985) presented data on end uses of various gasifier process streams (see Table 2) The analysis of a typical product gas stream appears in Table From an economic point of view it is desirable to construct...

Ngày tải lên: 10/08/2014, 20:20

... the use of nanofiltration membranes in water and wastewater use, fouling of these membranes, mechanisms of separation, modeling, and the use of atomic force microscopy for the study of surface ... a number of factors that accumulated as a result of continuous investigations and reevaluation of the process These are (1) the decrease in cost of chemicals; (2) better understanding of floc ... This relation establishes the need of final effluent wastes free of such pollutants regardless of the cost of additional treatment The settling velocities of finely divided and colloidal particles...

Ngày tải lên: 10/08/2014, 20:20

... the products of the action of chlorine on certain constituents Such liquids cannot be used directly for the determination of BOD because of the bactericidal effect of the chlorine or of its products ... where: BOD = BOD of the sample BODm = BOD of the mixture (sample + dilution water) BODd = BOD of the dilution water (blank) = volume (ml) of sample in litre of the mixture V Sm = DO of the mixture ... mg of the dye in 100 g of absolute ethylene glycol Alternatively, a dry mixture of the dye with sodium chloride is a stable form of the indicator Prepare by mixing 200 mg of dye with 100 g of...

Ngày tải lên: 23/05/2015, 17:09

... factors such as thickness of the films and the chemical properties of the polymer, it becomes important to understand how the polymer properties changes with thickness 1.1 Effect of Thickness on Glass ... 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 film physical properties Examples ... failures of adhesion to metals and degradation of dielectric properties The dimensions of the films will also be affected by water due to swelling Thus the moisture sorption behaviour of polyimide...

Ngày tải lên: 05/10/2015, 19:04

... dissolved at a concentration of  20 ngÆlL)1 in 2-propanol/ water/triethylamine in a ratio of : : 0.01 (v/v/v) and sprayed at a flow rate of lLÆmin)1 MALDI-TOF MS of LPS and free lipid A were ... the chemical structures of which are already known [12,13] The negative ion MALDI-TOF mass spectrum of the native LPS (Fig 1) exhibited a complex pattern of several groups of ion peaks representing ... and of laser-induced fragment ions [18] representing the lipid A moiety of LPS (centered around m/z 1850, 1641, and 1347) The mass difference of D m/z 660 between the respective groups of ions of...

Ngày tải lên: 20/02/2014, 23:20

... (courtesy of Department of Energy Office of Basic Energy Research (BER)-funded neutron Protein Crystallography Station at Los Alamos National Laboratory (LANL)); (3) simulation of confinement of DNA ... president of the National Academy of Sciences The National Academy of Engineering was established in 1964, under the charter of the National Academy of Sciences, as a parallel organization of outstanding ... constructed of a wide range of nonbiological materials However, the specific control of the shape and the osmotic properties when the number of components in the surface and interior of the membrane...

Ngày tải lên: 14/03/2014, 10:20

... parts of the plant site Access to other parts of the plant site is to be given in accordance with the provision of Paragraph 25 of Part VII and paragraph 51 of Part II of Verification Annex (VA) of ... the in-country arrival of IT for inspection and the location of departure of IT after completion of their mission The procedure for Point of Entry in receiving IT, clearance of goods / equipment ... type of inspection (b) The point of entry (c) The date and estimated time of arrival at the POE (d) The means of arrival at the point of entry (e) The site to be inspected (f) The names of inspectors...

Ngày tải lên: 14/03/2014, 19:20

... Akimoto, 2001) Much of our current understanding of the impact of intercontinental air pollution transport on the chemical composition of the atmosphere is based on the results of model studies ... adsorption of nitric acid on the wall of the sampling tube, respectively The accuracy of the NO and NOy measurements is and 15%, respectively, for a time resolution of s Detections of CO and O3 ... cannot easily be tracked from space As a result of the strong lifting of polluted air masses at the eastern seaboard of Asia, the biggest chance of successfully identifying such a pollution plume...

Ngày tải lên: 15/03/2014, 20:20

... samples were collected The Table Classification and some physicochemical properties of soils in this study Profile Number of Soil groupa no horizons 8 10 11 12 13 14 15 16 17 18 19 20 7 7 a b c ... Group of Natural Background Values of Soil and Academia Sinica (1979) Liu (1996) concentration is triple the mean value of soils in China and twice as much as the natural background value of soils ... amounts and percentages of the sum of individual chemical fractions are presented in Table The distribution of metals varies greatly among the samples Only very small amounts of Cu, Zn, Pb and Cr...

Ngày tải lên: 15/03/2014, 23:22

... the focus of presentations and discussions: l l l l Online and of ine coupling of meteorological and air quality models Implementation of feedback mechanisms, direct and indirect effects of aerosols ... optical properties are prescribed for each aerosol type, size, and wavelength of the external mixtures Table 2.3 summarizes model treatments of cloud properties, reflecting the levels of details ... and off-line coupling of NWP and ACT models, implementation strategy for different feedback mechanisms, direct and indirect effects of aerosols and advanced interfaces between both types of models...

Ngày tải lên: 16/03/2014, 23:20

... most of the stabilizing features of FdTt are found in the vicinity of the [3Fe-4S] cluster, which is the cluster that has functional importance [16] We here report a detailed biophysical characterization ... concentrations at which the midpoint of unfolding transitions occur as a function of pH Incubation times h (d), h (j), 24 h (r), and 48 h (m) different properties of FdTt, gave similar transition ... resynthesis of cubic (functional) clusters Summary Examination of the crystal structure of the seven-iron ferredoxin from T thermophilus has suggested that it represents the minimal functional unit of...

Ngày tải lên: 16/03/2014, 23:20

... center of the 1s AO that overlaps with the large lobe of the sp3 AO of C The C nucleus lies just inside the smaller lobe of the C-H MO because of its original location in the small lobe of the ... the C-C bonds as the result of combination of an sp3 atomic orbital on each C [graphic 1.37] We then picture each C-H bond as the result of the combination of one of remaining sp3 atomic orbitals ... complete octet (e) Preferred number of bonds (f) Number of Unshared electrons 4 3 2 1 (a) The total number of electrons is identical to the atomic number of the atom (b) C, N, O, or F each has...

Ngày tải lên: 22/03/2014, 14:20