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Online since: December 2013
Authors: Yu Bo Li, Qing Tao Xu, Shou Gang Yan
The average numbers of seedlings emerged and the emergence rates of sunflowers were calculated.
However, the reduced number of the pH value was different according to different application amounts of desulfurization gypsums.
The increased number of EC value of soils changed with the application amounts of desulfurization gypsums.
(3) Compared with the increased number of total salt content in the soils which were applicated desulfurization gypsums, the increased number of total salt content in the soils which were not applicated desulfurization gypsums into, was more and reached 0.636.
Only a small number of soil indices and test times were monitored in the experiment.
Online since: October 2006
Authors: Peer Löbmann
Fig.1: Schematic illustration of the constructional stages in biomineralization according to Mann [8]: (1) supramolecular preorganization, (2) interfacial recognition at initial mineralization site, (3) vectorial regulation of shape and size of product and (4) biomineral tectonics Based on the insights into natural biomineralization processes, an increasing number of biomimetic or bio-inspired routes for material synthesis are proposed [8].
Since there are only a limited number of routes to ceramics at low temperatures [13], there are only few reports about the bio-inspired synthesis of such materials [14], especially in combination with polymer substrates [15].
With increasing number of surface-induced seeds they will soon meet neighboring deposits and further vertical growth is stopped.
No TiO2 deposition is observed on as-prepared microspheres, inorganic material is formed as spherical grains that were generated by homogeneous precipitation (Fig.3a).
Online since: March 2007
Authors: Takayuki Kitamura, Yoshitaka Umeno, Motoki Tagawa
(a) View of atomic configuration where coordinate numbers are indicated by color.
Figure 1(a) depicts the atomistic configuration with colors representing the coordinate number of each atom, and the radial distribution function is plotted in Fig. 1(b).
The numbers of atoms in the model are differentiated by their Voronoi polyhedron type in Table 1, where only those with more than 5% of the total atoms are shown.
In the situation of a crystal the dislocation can propagate until it disappears at a surface or it is stuck at an obstacle like a grain boundary.
Online since: October 2010
Authors: Thomas M. Fitzgerald, Michael A. Marciniak
The condition number DRR instrument analysis approach proposed by Smith was applied to determine instrument operating mode.[7] In the Mueller algebra, a DRR instrument can be described by (1) where I is the measured intensity or Stokes parameter of the output polarization state mathematically selected by , is the Mueller representation for a polarizer at angle with respect to the polarization axis of interest, is the Mueller representation for a waveplate with phase retardation, subscripts a and g refer to analyzer and generator elements, respectively, M is the sample of interest and S is the Stokes vector of the input light.
N is the number of independent measurements necessary to return a full Mueller matrix.
Smith’s condition number approach to W-Matrix analysis allows determination of both N and suitable angle-increment pairs for rotation of the linear retarders.
Draine, "The discrete-dipole approximation and its application to interstellar graphite grains," Astrophys.
Online since: December 2013
Authors: K.W. Chew
Fig. 2 Ionic conductivity against weight percentage of Lithium Perchlorate Lithium Perchlorate is the main ion carrier in the electrolyte system thus adding it will increase the number of free mobile ions [4].These free mobile ions also increase the amorphous structure of the polymer through the favorable free volume as a result the ion migration takes place easily.
The phenomenon occurred due to a lot of free ions in the sample getting too close to each other and that increases the possibility of ion pairing, triplet or higher ion aggregation which reduce the total number of effective charge carriers and ion mobility [6].
The sphere represents the crystalline region where it consists of a number of platelets or lamellae radiating from a nucleating centre called spherulite [7, 8].
The nano sized filler interacted with the free ions where the alumina grains were found to be smaller in size and evenly distributed across the surface.
Online since: January 2014
Authors: Qun Yu, Kun Zhang
Table1 Rubber concrete mix Number Water kg/m3 Cement kg/m3 Sand kg/m3 Gravel kg/m3 Rubber Super plasticizer kg/m3 Species Proportion % Dosage kg/m3 CC1 158 405 624 1266 — 0 0 3.04 CRC2 158 405 562 1266 2-4mm 10 30.7 3.04 CRC3 158 405 499 1266 20 61.4 3.04 CRC4 158 405 562 1266 60-80mesh 10 21.86 3.04 CRC5 158 405 499 1266 20 43.72 3.04 CRC6 158 405 562 1266 2-4mm 10 30.7 3.04 CRC7 158 405 499 1266 20 61.4 3.04 CRC8 158 405 562 1266 60-80mesh 10 21.86 3.04 CRC9 158 405 499 1266 20 43.72 3.04 CRC10 158 405 562 1266 2-4mm 10 30.7 3.04 CRC11 158 405 499 1266 20 61.4 3.04 CRC12 158 405 562 1266 60-80mesh 10 21.86 3.04 CRC13 158 405 499 1266 20 43.72 3.04 CRC14 158 405 562 1266 2-4mm 10 30.7 3.04 CRC15 158 405 499 1266 20 61.4 3.04 CRC16 158 405 562 1266 60-80mesh 10 21.86 3.04 CRC17 158 405 499 1266 20 43.72 3.04 Test Method.This test has 17 design team, a total of 51 test block.
However, the surface of the rubber concrete block cracks obvious interruption phenomenon, and cracks than ordinary concrete cracks short, the numbers are more than ordinary concrete.
Table2 Rubber concrete test results Number Rubber slump (mm) compressive strength (MPa) Species Proportion (%) Dosage (kg/m3) CC1 — 0 0 30 51.55 CRC2 2-4mm 10 30.7 33 40.81 CRC3 20 61.4 38 35.87 CRC4 60-80mesh 10 21.86 27 38.72 CRC5 20 43.72 25 28.30 CRC6 2-4mm 10 30.7 36 42.12 CRC7 20 61.4 39 37.47 CRC8 60-80mesh 10 21.86 30 41.54 CRC9 20 43.72 29 29.08 CRC10 2-4mm 10 30.7 46 42.28 CRC11 20 61.4 53 39.70 CRC12 60-80mesh 10 21.86 41 39.17 CRC13 20 43.72 23 26.96 CRC14 2-4mm 10 30.7 30 43.58 CRC15 20 61.4 37 38.81 CRC16 60-80mesh 10 21.86 45 43.28 CRC17 20 43.72 34 34.27 Compressive strength.The compressive strength specimens of each group results in Table 2.
In contrast curve of intensity of each group, we can find that: (1) Rubber concrete strength after treatment was higher than no treatment rubber concrete, modification effect of CCl4 solution> NaOH solution> water; (2) When the rubber concrete coarse rubber particles increased, the strength and the modification effect are improved, but with the fine rubber particles increases, reducing the effectiveness of modification; (3) When the rubber pretreatment methods and the same dosage, crude rubber modified grain is better than fine rubber powder; (4) When the rubber content is 20%, the solution is treated with NaOH fine rubber powder concrete, strength decreased significantly than the untreated.
Online since: October 2013
Authors: Qian Xu Liao, Jin Cao, Jun Wei Tang
Introductions With the rapid development of the economic in our country, the scale of the infrastructure construction is being expanded constantly, and the pile foundation is used in a large number [1].
Because of the complexity of the pile foundation, a large number of manpower and material resources are in need of to get the actual measurement data.
A large number of scientific research achievements have been got by this means.
Zhang, With mud skin of coarse-grained soil and structure interface mechanics characteristic test research, Rock and Soil Mechanics, 9 (2005) 1374-1378.
Online since: April 2014
Authors: Song Wang, Zhong Chen Yu, Xin Wang, Yuan Lin Niu, Zhuan Li
In fig. 2(A), number 1-7 represent the TiO2 films prepared by adding 2 ml/L,4 ml/L, 6 ml/L, 8 ml/L,10 ml/L and 12 ml/L NH3·H2O into the 0.5 mol/L H2SO4 electrolyte.
In fig.2(B), number 8-14 represent the TiO2 films prepared by adding 0.6g/L, 2g/L, 5g/L, 6g/L, 8g/L and 10g/L Thiourea into the 0.5 mol/L H2SO4 electrolyte.
The size of pure (see fig. 3(a)) and N-doped TiO2 (see fig. 3 (b)) grains is about 150 nm.
When the content of NH3·H2O is 2g/L, the number of holes reach maximum.
Online since: December 2012
Authors: Reza Shoja Razavi, Morteza Hajizadeh Oghaz, Mohammad Reza Loghman-Estark, Reza Ghasemi
Attention in synthesis of nanocrystalline ceramics have in recent times developed because of the major progress in their properties as compared to the usual coarser grain compacts.
Experiment No Column numbers and factor allocation 1 Zirconium salt 2 pH of solution 3 Calcinations temperature(°C) 4 Calcinations time(hrs) 1 ZrO(NO3)3.8H2O 1 600 2 2 ZrOCl2.8H2O 1 800 4 3 ZrO(NO3)3.8H2O 1 1000 6 4 ZrO(NO3)3.8H2O 7 600 4 5 ZrO(NO3)3.8H2O 7 800 6 6 ZrOCl2.8H2O 7 1000 2 7 ZrOCl2.8H2O 12 600 6 8 ZrO(NO3)3.8H2O 12 800 2 9 ZrO(NO3)3.8H2O 12 1000 4 The response tables of standard analysis for morphology and particle size of YSZ powders were determined.
For morphology of samples a number from 0 to 100 was attributed to the samples according to being close to the spherical shape and so bigger number was attributed to the most spherical shape.
Online since: July 2012
Authors: Shahril Anuar Bahari, Wan Nor Raihan Wan Jaafar
With the large oil palm plantation hectarage in Malaysia, the number of oil palm trunk collected from replanting activities has increased.
The total number of layers was 7.
Compression perpendicular to the grain test was conducted and maximum compressive stress (MCS) was calculated.
The Mean Physical Performance Properties of Bamboo Strips-Oil Palm Trunk Veneers Composite Lumber at Different Layer Orientations and Hot Pressing Times (Notes: Means with the same letter are for comparison between two variables, different numbers indicate the variables are significantly different at α = 0.05) HLBCL Pressing Time (min.)
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