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Online since: October 2012
Authors: Lu Lin, Yuan Yuan Liu, Ning Qiu Huang, Bin Zhao, Qiang An
Ten variables including CODMn, PO43--P, SiO3-Si, NO3--N, NO2--N, NH4+-N, TN, TP, TOC and chl-a were analyzed by exploratory data analysis.
Principal components analysis (PCA) is a useful tool in the examination of multivariate data [15].
The first principal component is the linear combination of the variables that accounts for a maximum of the total variability of the data set.
Data was determined using the statistical package SPSS (Release 10.0).
[15] Zitko V (1994) Principal Component Analysis in the evaluation of environmental data.
Online since: May 2012
Authors: Jian Hui Qiu, Jing Ling Bao
The interaction between the various components of odor pollutants may have a role in stacking or reduction [1].
Experiments’ results find that the test data and the gradation divide 窗体顶端 Corresponding to each other basically窗体底端, but the fifth set of experimental results has a large biased errors, because of the different olfactory sensitivities of panelists to the different characteristic samples.
Online since: December 2010
Authors: S.A. Nikitin, G.A. Tskhadadze, I.A. Ovchenkova, D.A. Zhukova, T.I. Ivanova
The temperature dependence of MCE in the vicinity of the Curie temperature with a maximum of the λ-type points to the existence of the phase transition of the second type, which correlates well with the magnetic data.
At x = (0.1-0.125) the Curie temperature has a maximum and the further decrease in Co content leads to a sharp reduction of the magnetic ordering temperature.
Online since: June 2012
Authors: Sheng Min Sun
The data shows that the degradation rate of the reaction solution under acidic conditions is easier than under alkaline conditions.When pH is 6,the degradation effects of Rhodamine B is the best,and the reaction rate is the fastest. 2.2.2 Catalyst dosing quantity of composite light catalytic performance impact It can be seen from Table 2, under the conditions of the different catalyst dosage, in (C 0/ C) and t is still a good linear relationship, which states that composite raction of Rhodamine B under different catalyst dosage comply with an order kinetics.When the dosage is 5g ,both the rate constant and the rate of degradation reach the maximum.
The initial reaction liquid concentration of 5 mg/L, the degradation rate is the highest.Because of that rhodamine B solution itself has a certain absorbance, the higher the concentration, the darker the corresponding absorbance is better, leading to the relative reduction of the UV light intensity catalyst can be used.
Online since: November 2011
Authors: I. Tsopelas, A. Gili, J.P. Xanthakis
Introduction Despite the continuing reduction of the length of the MOSFET, the frequency of operation has remained constant at about 3GHz - during the last three years due to power dissipation limitations.
Requirements of low power consumption and fast switching or processing of data make the III-V channel transistors attractive also for sensors.
Online since: October 2011
Authors: Gang Feng Tan, Pin Chang Zhu
Reasonable design of the vibration characteristics of the tailpipe and the reduction of the energy transfer from the tailpipe to the vehicle body would contribute to improve the NVH performance of the passenger cabin, increase the lifetime of the exhaust pipe hooking and lifting lugs and prevent lifting lugs’ beating and falling.
The free mode and the constrain mode of the exhaust system is analyzed using the Hyperwork/Optistruct and the simulation result and the test data is show in table 1.
Online since: September 2011
Authors: Masakazu Terai, Koichi Minami
The production of steel has high consumption of fossil fuels, so, the steel discharge in the construction of structures has been presented, showing the possibility of drastic reduction by research institutes.
As the load was decreased, the bending crack progressed rapidly, then the data of strain softening behavior could not be recorded.
Online since: January 2013
Authors: Mu Jian Xia, Hong Yan Ding, Guang Hong Zhou, Yue Zhang, Guo Zhi Zhuang
Recently, TiB2 has been conventionally applied in the potential coatings or films material for various applications to the diffusion barriers in microelectronic devices [2, 3], thermal oxidation and wear reduction coatings for cutting tools [4], and corrosion protection especially [5].
The hardness values were calculated by the computer according to the corresponding load-penetration data.
Online since: October 2014
Authors: Kun Yan Wang
For each sample, the data reported are the average of five to seven specimens.
The reduction in tensile strength at about 20wt% compared to that of neat PP.
Online since: September 2013
Authors: Martha Lilia Domínguez Patiño, Antonio Rodríguez Martínez, Rene Guardián Tapia, Rosa María Melgoza Alemán, Miguel Aguilar Cortes
Moreover, not only generates topographic information, like other optical microscopes but also provides data on the surface chemical composition.
Complete treatment will consist of preparation, characterization using size reduction (SEM) microscopy and energy dispersion microanalysis (EDS) of all component parts of the printed circuit board.
Showing 23271 to 23280 of 40694 items