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Online since: October 2013
Authors: De Liang Li, Jiao Tang, Neng Qing Feng, Shi Yu Huang, Guo Jun Sheng
The target product abbreviated as [Au(tu)2]SCN · H2O was synthesized according to a patented routine called ISRC (In-situ Selective Reduction-Coordination) method [6] by using auric chloride, potassium thiocyanate and thiourea as the primary material.
In the temperature rang of 300-800℃ the residual is ~53.17%, which is larger than that of the theoretical data (46.35%) because the complex is incompletely decomposed.
The measured data is 13×10-4 S×m2×mol-1, which is indicative of low Ionization capacity, namely the complex may be non-electrolyte, Again it reveals that this complex is composed by mixed ligands ,and particularly thiourea is used as the inner ligand and thiocyanate as the outer ligand ,but the latter (thiocyanate) is not completely free.
[6] Deliang LI and etal, Synthesis of aurous compounds by ISRC(In-situ Selective Reduction-Coordination) method.
Online since: July 2012
Authors: Zhi Wu Han, Yan Liu, Si Rong Yu, Liang Li, Rui Feng Li
These applications are attributed to the good processability [1], high specific strength and stiffness [2], and low density of magnesium [3], leading to weight reduction and thus significant cost-effective benefits in energy consumption and fuel economy [4].
To meet the stringent environmental requirements being set for automobile manufacturing, energy efficiency, and CO2 emission reduction, use of magnesium is expected to further increase at a rapid rate [2].
According to the data with Fig.1, variations of hydrophobic property is regular and the values of the contact angle are measured under the different solution of the single concentration.
Fig2 The contact angle of modified layer by stepping wet-chemical method Fig.1 The contract angles under different solution of the single concentration Comparing to the data with Fig.2, our results indicate that the hydrophobic property can be obtained in high-surface-energy materials by the stepping wet-chemical routes (the maximum contact angle obtained is 130.8°); the distribution and extent of microporous structures play a critical role in transforming the wettability of the alloy surfaces from hydrophilicity to hydrophobicity.
Online since: February 2014
Authors: Hong Juan Yang, Lu Yao Wang
Ecological risk management is the specific application on dealing with ecological risk, protecting ecological safety, which is based on the results of ecological risk assessment , according to the appropriate laws and regulations , through selecting effective control technology to analyze the costs and benefits of risk reduction.
There are a total of 2347 articles related to this, the analysis results are as follows: From the view of literature type, as shown in Table 1, the proportion of article is large, accounting for 67% of the total ; there are 148 review articles, accounting for 6 % of the total ; other types of articles ( data type, class notes , class meetings etc. ) of 633 , accounting for 27 % of the total .
Future research focus in the following areas: Collection and extraction ecological risk monitoring data.
Davos, Switzerland: 3 Extended Abstracts of International Disaster Reduction Conference, 2006: 907.
Online since: January 2013
Authors: Kiichi Kamimura, Takashi Sakai, Tomohiko Yamakami, Rinpei Hayashibe, Mitsunori Hemmi
Figure 4 shows the interface state density of the SiO2/Nitride/SiC structure together with the data shown in Fig. 3.
Figure 6 shows the Si2p spectrum from the SiC surface with and without the direct nitridation layer detected at the same time as the data shown in Fig. 5.
Results shown in Figs. 5 and 6 and Table I indicated that the oxidation of nitride layer was the dominant process for the reduction of the interface state density.
The oxidation of nitride layer seemed to be the dominant process for the reduction of the interface state density.
Online since: January 2012
Authors: Wei Shan Jiang, Li Jun Li, Qing Ning Li
New precast prestressed concrete hollow slab is not only complied with the request "energy saving and emission reduction" of the state's, but also reduces the construction cost for developers, project can meet the requirements of the integrity of structure.
Take test model for example, according to formula 1, calculated results are close to the measured data.
Bending stiffness Parallel to the direction of the pipe axis: (2) Bending stiffness Perpendicular to the direction of the pipe axis: (3) ,- stiffness in X, Y directions of hollow floor, ,- stiffness in X, Y directions of solid floor of the same thickness, ,- stiffness reduction factor along the Y, X direction of the hollow floor, E, ν- elastic modulus poisson ratio of the concrete, h, d - thickness of the hollow slab, diameter of the hole, S1- net distance between holes.
The data and comparison of measured deformation, calculated deformation, finite element solution are shown as Table 1 and Fig.6.
Online since: October 2021
Authors: Turup Mohan, Krishnan Kanny, Olusegun Adigun Afolabi
The porosity of syntactic foam is high, resulting in a significant reduction in weight compared to traditional materials due to the presence of hollow sphere fillers.
Strain data was obtained using an Instron extensometer of 25mm gauge length at a crosshead displacement velocity of 2mm/min. the raw data of load and strain values obtained from the MTS software are used to calculate and plot the stress-strain curves using Microsoft excel spreadsheet.
The raw data was plotted and calculated into stress-strain curves to obtain the flexural strength and modulus.
This was reportedly caused by relative reduction in density which is smaller than relative reduction in strength.
With the consistent progression in the σf/ ρ, with respect to HGM volume fraction, it shows that the syntactic foam can be of advantage in weight reduction application.
Online since: June 2014
Authors: Yang Cao, Wei Tian, Chun Hua Yan, Jin Gao, Zhi Yuan Gao, Mi Fang Yan, Mao Hua Shan
Given data set X={x1,x2,x3,…xn},each element of X is with S attributes.
This study is based on the modeling tool of matlab R2010a, the load data of a certain automobile manufacturing enterprise in April 2013 and June-August 2013 is selected as the cluster’s feature vector to analyze.
Data in total is 122 sets, divided into seven categories.
The overall load level of the third category is low, see from the data this category belongs to, this is not due to the power rationing, probably caused by equipment shift, maintenance, employee vacation, this part of load can be lowered at least 14000KW.
Forth, for the industrial enterprises with high load level and high load flexibility, utilities can implement DSB on them, which allow the users report their load reduction and the corresponding price.
Online since: October 2011
Authors: Shao Dong Xie, He Chun Zhao
Many European countries have set monitoring sites to collect basic data and using dynamic models to guide the local acid deposition control scientifically[4-6].
Methodology and Data The VSD model The VSD model is a single layer acid deposition dynamic model.
The historical trend of S deposition was assumed as consistent with the whole country[19] because no local data are available, and historical trend of other icons was assumed as consistent with that of S deposition.
Base on current research[21,22], BC deposition could be regarded as deposition of natural sources because no BC source data is available.
Modelling recent and historic soil data from the Rothamsted experimented station, UK using SAFE[J].
Online since: October 2016
Authors: J.M. Rodriguez-Ibabe, Pello Uranga, Isabel Gutiérrez, Gorka Larzabal, Nerea Isasti
Even though strength is not clearly affected by the reduction of the holding time after the last deformation pass, Charpy properties are considerably improved in the case of the Nb steel.
For a lower coiling temperature of 600 ºC, in Nb steel slightly finer unit sizes are measured when the holding time is decreased from 10 to 0 s, even if in Nb-Mo steel the beneficial effect of the reduction of holding time is not observed.
Tensile data (yield strength and tensile strength) are plotted in Fig. 5a and b as a function of coiling temperature for both chemical compositions and holding times after last deformation.
Concerning the term related to the microstructural unit size refinement, Fig. 6 shows that the reduction of coiling temperature leads to an increment of its contribution in both steels.
Wallin, Modified tanh fitting algorithm for charpy impact data, In; Research Seminar on economical and safe application of modern steels for pressure vessels, 2003, Aachen, Germany.
Online since: September 2015
Authors: Nikolay Smirnov, Vladimir Tyutikov, Bernard Flament
Indoor temperature reduction in the setback heating mode creates a high energy saving potential.
After processing data received from the Russian and French Meteorological Services, the authors determined the duration of daylight hours for each month in various cities of the Russian Federation.
Data for the cities under consideration are given in Table 3.
It is worth noting that for cities located in practically the same latitude (68-69 0N) the climatic data differ considerably: in Murmansk the heating season lasts 275 days, while in Norilsk it lasts the whole year.
Calculation data are given in Tables 4 and 5.
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