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Online since: September 2013
Authors: Cheng Sheng Zhang, Yu Qin Zhang, Jing Wang, Fan Yu Kong
Data analysis Data were analyzed by ANOVA or GLM procedures of SAS.
Data for soil populations were transformed as necessary for statistical analyses, but all data are reported as nontransformed values.
The recent price increase of methyl bromide products coincided with the scheduled reduction in production of methyl bromide.
As the scheduled reductions are activated and the cost of methyl bromide rises, the economics of using metham-sodium and dazomet will become attractive to growers.
McSorley: Proceedings of the Annual International Research Conference on Methyl Bromide Alternatives and Emissions Reductions (Orlando, FL, November, 1996). pp. 91-92
Online since: January 2011
Authors: Qiang Wang, Yu Rong Lin
Therefore the PCA method is optimal for data reconstruction, but not for discriminant analysis.
They fail to discover the underlying structure, if the data live on or close to a sub-manifold of the ambient space.
This makes it difficult to reconstruct the data.
In Section 3, the dimensionality reduction method of DONPDA is presented.
Defining affinity matrix is as follows (1) Where represents the neighborhood relation between data sample and .
Online since: June 2012
Authors: P. N. Stetsenko, A.S. Semisalova, S. D. Antipov, G. E. Gorunov, N. S. Perov, M. N. Pivkina, E. E. Said-Galiyev
As it was shown in [7], the reduction temperature is a significant factor affecting the platinum particles size and the rise of the reduction temperature of CODPt (CH3)2 from 200 oC to 600 oC results in an increase of the particles size from 23Å to 36Å.
The volume distribution function, Dv(R)=N(R)V(R) (where N(R) is the number of Pt nanoparticles of the similar spherical shape with radius R and V(R) =4/3πR3 is the volume of the particles with radius R), was obtained from the analysis of the data of SAXS for Pt nanoparticles.
This result shows that the Pt cluster ensembles have a bimodal particle size distribution with two peaks: R1max=20 Å and R2max=40 Å; analysis of SAXS data showed no any evidence of particles agglomeration.
Firstly, the Pt/ γAl2O3 sample was cooled down to 80 K in zero magnetic field; the data of magnetization were taken at 3 kOe magnetic field under slow warming up to 400 K and followed cooling back to 80 K.
Accordingly to the data presented in Figure 3 the value of coercivity decreases with the increasing temperature from 130 Oe at 80 K to 80 Oe at 400 K.
Online since: December 2010
Authors: Edward Fraś, Marcin Górny
However, this effect can be estimated on the basis of our experimental data using similar procedure to given in [11]
Knowing these data the effect of dissolved sulfur on the graphite eutectic growth coefficient can be estimated from Eq.(14).
Summing up, it can be concluded that the dissolved sulfur increase in the chilling tendency mainly through a reduction of the growth coefficient, µ and in lesser degree through a reduction of the nucleation coefficient, Ns.
(a) Intensivity effect of the dissolved sulfur (through, µ, b, Ns and ∆Tsc) on abslotue chilling tendency index, CT; (+) and (-) means that the chilling tendency increases and decreases respectively, (b) effect of the dissolved sulfur on the absolute chilling tendency and the wedge width of the chill, w lines - calculated, points - average experimental data of the wedge width of the chill, w Conclusions 1.
Dissolved sulfur increases the chilling tendency mainly through a reduction of the growth coefficient, µ and in lesser degree through a reduction of the density of substrates available for nucleation of graphite, Ns. 3.
Online since: May 2012
Authors: Lei Wang, Qing Zhang
Research of the acoustic emission data processing technology In the acoustic emission data monitor process, no matter in laboratory or in construction site, there will occur some uncertain elements, which can produce some acoustic emission signals, mingled in the rock acoustic emission signals, thus we have to reduce the noise of the monitored data and make it more real to reflect the rock status.
Now the most frequently used noise reduction way on the rock acoustic emission data is called wavelet analysis theory, which initial stage adopted the traditional FFT transform for signal processing to process the image and sound signals, now the more effective way to do signal process is Wavelet Transform theory.
Although researchers combine the acoustic emission technology with a little practical study of geological and mining engineering and tunnel engineering, the practical data were still very little.
Still some researchers do experiments to analyze the crustal stress by Kaiser Effect, and most of them are only get the data curve, not do carefully analysis on the data curve after noise reduction.
Thus the research of rock acoustic emission should be improved on analyzing technologies, we should use many ways to analyze the rock acoustic emission data curve, and establish reliable connections between the rock acoustic emission data curve and its stress, and get reliable theory and formula, to make greater development on the rock acoustic emission technology.
Online since: February 2008
Authors: Yun Ping Di, Ming Liu, Wen Chao Li, Li Hua Xu, Fang Lian, Ti Zhuang Wang, Xiao Meng Zhang, Huan Wang
China a xulihua1966@263.net Keywords: SiAlON, Cabothermal reduction & nitridition, Thermodynamic analysis Abstract.
The process of Carbothermal Reduction and Nitridation (CRN) is selected on the basis of raw rocks containing various Si/Al ratios.
These basic equations and data are available for establishment of thermodynamic modeling upon physical and chemical reaction at high temperature.
Online since: August 2013
Authors: Xiao Lan Gong, Jing Pan, Xiao Yong Kang
Based on the idea of ecological sustainability, this paper puts forward a mode for the overall process of managing the construction wastes in Shenzhen, which can be divided into four aspects: reduction at source, optimization of the transportation, comprehensive utilization and efficient disposal.
The data shows the silts in Shenzhen sum up to more than 10 million cubic meters (weighing 16 million tons by an average density of 1.6 tons/m3), taking up about 70 percent in quantity of the city’s annual solid waste.
The put-forward of the comprehensive management mechanism during the overall processing of Shenzhen’s construction a waste of silts from an ecological perspective The processing of the silts from an ecological perspective is not the afterwards treatments, but to put the viewpoint and stress forward, sticking to reduction, reuse, resource.
Reduction at source The sorting and recycling at source means to share the usable waste metal, wood, paper, bricks and rocks by selling or refilling and smoothing the ground, leaving the rest to be entrusted to the company for processing.
The Shenzhen economic zone silts reduction and reuse guidelines have set up the system for charging for the silts, the fee standard should be determined according to the factors such as the local economy and the actual needs for the recycling and the tolerance of the construction units.
Online since: November 2012
Authors: Xiao Dong Ju, Wen Juan Feng, Zheng Sheng Zou
The safety factor of landslide is calculated according to shear strength reduction theory in the numerical simulation software.
Concrete methods and the Data depend on the importance of the construction, the consequence of landslide and the believable degree of basic information.
The safety factor of landslide is calculated according to shear strength reduction theory in the numerical simulation software which is using to carry out strength reduction of materials parameters of landslide also when we designed the landslides state.
Strength reduct On formula is as equation (1): (1) In formula: are reduction of soil shear strength index on slope stability analysis .c and were conventional parameters of soil shear strength index.
Online since: February 2014
Authors: Eddy Simoen, Masato Hori, Isao Tsunoda, Kenichiro Takakura, Masashi Yoneoka, Cor Claeys, Toshiyuki Nakashima, Yuki Asai, Mireia B. Gonzalez
The reduction of the device performance can be explained by the radiation-induced lattice defects in the devices.
Therefore, data accumulation of the irradiation effects in semiconductor devices is very important.
Reduction of mobility is mainly due to the interface states formed by electron irradiation at the interface of the Si channel and the gate oxide film [8].
Furthermore, no significant reduction in electron mobility due to strain relaxation could be observed in the Si1-xCx S/D n-MOSFETs after irradiation.
Online since: October 2010
Authors: Agnieszka Gubernat
Such data allowed to achieve full characterization of carbide sintering.
Lack of interest in sintering single-phase carbide materials is synonymous with the lack of data on describing such process with models, which in most cases depend on measurements of sintering kinetics.
Data shown in table concern spherical grains, with no grain growth during sintering.
Measurements of sintering shrinkage under isothermal conditions in determined characteristic sintering temperatures confirmed data obtained from measurements during non-isothermal heating.
Combining the obtained data for TiC0,8 suggest, that the optimal sintering temperature is 2000°C.
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