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Online since: April 2016
Authors: Hai Lang Lin, Yu Chen, Cong Cong Huang, Pei Dong Fan, Xin Zhao
The pertinent data were summarized in Table 1.
Fig. 1 TGA and DSC trace of PPOXD Table 1 Spectral, electrochemical, and thermal properties of PPOXD Compd. λonset [nm] λabs [nm] λem [nm] λphosa [nm] Eg [eV] ET b [eV] EHOMO/ LUMOc [eV] EHOMO/LUMOd [eV] Td/g [℃] PPOXD 375 270/307 378/448 504 2.93 2.46 -5.25/-2.32 -6.05/-2.24 275/170 aMeasured in a frozen 2-methyltetrahydrofuran matrix at 77 K.; bThe triplet energies were estimated from the onset peak of the phosphorescence spectra; cHOMO levels were calculated from CV data, LUMO levels were calculated from HOMO and Eg; dThe calculated energy levels of HOMO and LUMO.
The PPOXD underwent oxidation and reduction to approbate the formation of stable cation and anion radicals, which suggested their bipolar transporting properties.
Online since: March 2010
Authors: Ju Chen Xia, Xin Yun Wang, Mei Ling Guo, Jian Cheng Luo
The result of springback leads to the change of shape and the reduction of accuracy.
Collect the outer surface of part as three-dimensional point cloud data, and then import point cloud data into software Geomagic.
Online since: March 2011
Authors: Ya Wei Wang, Guang Cai Han, Min Bu, Qu Wei Yue
Further reduction in numerical errors can be realized by adding the sampling points at the edge of light field when defining propagation distance.
Nearest Neighbor Interpolation is chosen to perfect data to reduce the errors of numerical treatment.
According to the detailed morphology of optical models and the refractive index data, the parameters of the cell models in the VirtualLab system are set.
Online since: February 2014
Authors: Yong Dou, Rui Nan Chen, Wen Li Zhou
In order to provide some scientific data for sustainable development of Qingdao coastal zone, a study on ecosystem health assessment of Qingdao coastal zone based on press-state-response(PSR) model [4-7] contained a series of indicators was conducted in the paper.
Data source The dataset used in the analysis process was cited from statistics bulletin of Qingdao.
As economic structure regulation and reduction of emission in Qingdao city, the tertiary industry proportion went up while the SO2 emission slashed substantially from 2005 to 2009, when the inshore fishing and mariculture dropped and the area per capita increased, meanwhile the investment in environmental protection maintained at a high leval.
Online since: September 2013
Authors: Ji Hong Zhang, Qing Bin He, Jin Feng Li, Yong Liu
By using the combination technology of chromatography and mass spectrometry we know that the reduction in the filter is combined by metal cations, we also discuss the relationship between bacterial and metal ions and find that bacterial corrosion would form a large number of metal cations.
It is can be seen from the analysis data in table 2 of the strip material that the main organic elements are C, N, O, which are also the main ingredients of polyacrylamide, thus has further proved the strips is made of polyacrylamide complex.
Fig 3 The X ray energy spectrum analysis diagram of strips Table 2 Material data sheet Element Wt% At% C K 59.71 66.16 N K 10.78 10.24 O K 26.38 21.94 NaK 02.14 01.24 MgK 00.09 00.05 SiK 00.05 00.02 P K 00.33 00.14 S K 00.32 00.13 CaK 00.20 00.07 From the analysis above, we have determined the main components of the strips which include three kinds of substances, i.e.: (1) The main organic matter is polyacrylamide (PAM); (2) The main inorganic irons are Iron ions, magnesium ions, calcium ions; (3) The substances that attached to the surface of strips is sulfate reducing bacteria, iron bacteria and saprophytes and their metabolites.
Online since: October 2012
Authors: Xin Yin, Yuan Peng Liu, Zhen Hua Wen
It can extract some knowledge such as ratiocinative rules from the training data, and based on which can make non-linear forecast[2].
Fig. 2 Around noise reduction supersonic signal Friction Welding Defect Recognition Based on Genetic Neural Network Genetic Algorithm is a searched and optimized method which develops in the latest to simulate the evolution of life.
Fig. 3 Flow chart algorithm of GA-BP Based on the experiment data as the training samples and test samples, we calculated the actual output of the network and the desired output error, and its variance is used as the objective function [3]
Online since: June 2010
Authors: Hidehiro Yoshida, Koji Morita, Keijiro Hiraga, Byung Nam Kim
Introduction In alumina ceramics, high transmission of light is attained by the reduction of the light scattering sources such as pores and large grains.
The porosity at ≥1200 ˚C is within the scattering range of data, so that the densification seems to have been completed at about 1200 ˚C.
Plotting the data of the total forward transmission with respect to the grain size, we obtain roughly consistent graphs independent of the MgO doping, as shown in Fig. 3.
Online since: June 2012
Authors: Gang Feng, Chao Ge Zhang, Ji Bao Qi, Ya Zhang
Using adjustable speed motor to drive hydraulic pump as a power source remains low rotation speed in the pressing, cooling and idling conditions, and achieve the purpose of energy-saving and noise reduction.
Aim at the control characteristics, only output y (t) is made differential by the first differential PID control, and a given value r (t) not ,in order to avoid the saturated control output due to the mutation setting data and system shocking caused by frequently setting up and down data.
Online since: February 2014
Authors: Yong Jun Lee, Yumin Kim, Gyeong Seok Choi, Jae Sik Kang, Ho Yeol Lee
Table.2 Evaluation Condition and Model of Heating Energy Condition Weather Data Standard weather data of Osan area Set Temperature 26 ℃ Occupancy Schedule Residential_typical Heat Source LNG (COP 0.65) Internal Load Light : 4 W/m2 Equipment : 14 W/m2 Person : 0.04 person/m2 Analysys Model 3.
Table.5 Heating Energy Consumption for Internal and Sandwich Insulation System Internal Insulation Sandwich Insulation Reduction Rate Anual Heating Energy [Kwh/m2yr] 108.6 89.3 17.8 % 3.
Online since: April 2023
Authors: Jose Vercher, Tomàs Vidal, Miguel Redón, Cristina Wentworth, Júlia G. Borràs, Gracia Lopez
The four test cubes were placed in an oven and using thermal sensors, the data about the temperature evolution during the process of heating and cooling was collected for further analysis.
It is well known that improvements in the building envelope have high influence in the energy demand reduction.
Data is taken every 10 minutes in order to compare how fast the temperature inside the different specimens increases (Figs.1e, 1f). 6) In the second part of the experiment, the aim is to find out the opposite, how long it will take for each of the specimens to return to room temperature (Fig.3).
Observing the data obtained in the warm-up, it is concluded that the concrete with PCM, around the temperature between 20 and 40 degrees, maintains a lower temperature than the concrete without PCM, and that these stabilize around 47 degrees.
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