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Online since: December 2013
Authors: Yong Zhou, Fu De Liu, Li Jie Duan, Bo Yang Qu
Results and Discussion 3.1 Optical properties The UV-visible spectrum of poly (3-bromothiophene) in DMF solution was shown in Figure 1. and the data are summarized in Table1.
The profile of cyclic voltammetry (CV) was shown in figure 4.The HOMO and LUMO energy levels (EHOMO and ELUMO, respectively) and electrochemical band gap of poly (3-bromothiophene) was calculated by use of the following empirical formulas [12], EHOMO = - (Eox + 4.40) eV, ELUMO = - (Ere + 4.40) eV, = ELUMO- EHOMO, where Eox and Ere are the onset of oxidation and reduction potentials, respectively.The value of Eox and Ere are 0.74 eV and -1.21eV respectively.Figure 4 shows the cyclic voltammograms of the synthesized poly (3-bromothiophene) and the derived CV data (EHOMO, ELUMO) are summarized in Table 1.
Optical and Electrochemical Data of poly (3-bromothiophene) UV-vis Fluorescene Photoluminescence Cyclic voltammetry λmax(nm) λonset(nm) (eV) λmax (nm) λmax (nm) EHOMO(eV) ELUMO(eV) (eV) 380 520 2.38 504 658 -5.18 -3.19 1.99 3.3 morphology and conductivity The scanning electron microscope (SEM) of poly (3-bromothiophene) was shown in figure 5.
Online since: June 2015
Authors: Bernd Thomas, Jie Zhang, Victor M. Torres, Darren Hansen, Kevin Moeggenborg
The increase of wafer size from 100mm to 150mm is an important milestone for cost reduction, as the usable area will more than double.
Every data point represents a wafer.
Every data point represents an epi wafer.
Every data point represents an epi wafer.
Online since: March 2015
Authors: Yue Feng Li
The results obtained at room temperature and some data from literatures are illustrated in Fig. 2 as function to the graphite amount of the composites.
The results of NaNO3-LiNO3 are the measurement data in this paper, and the materials of others are from Pincemin [1] and Zhang[6].
(2) The latent heat of the composite decreased with the increasing EG amount, while the initial temperature of melting and peak temperature do not distinguished vary with slightly reduction during melting and triflingly rise during solidification from the curves of DSC, and the converting latent heat of the PCM in the composites changed not more than 8%.
(3) The thermal conductivity of the composite is increasing with the increasing EG from the data of hot-disk thermal constant analyzer.
Online since: October 2011
Authors: Ping Wang, Ming Zhi Zhu, Wen Huang, Chi Fu Huang, Sarah Wilson
Our data showed that the minimum inhibitory concentrations of the pour component was less than 5mg/ml for all four microorganisms and the minimum concentration with anti-inflammation was 0.2mg/ml for both IL-8 and IL-6.
Hamada, "Reduction of dental plaque deposition in humans by Oolong tea extract, "Caries Res., 28, 146-151 (1994)
Online since: June 2017
Authors: D.S. Vasilega, V.A. Zyryanov
The results of experimental studies of the different machinability group materials’ characteristics, including tool steel DIN C125W, heat-resistant steel (C - 0.1%, Si - 0.6%, Cu - 0.3%, W - 0.1%, Mn - 0.4%, Ni - 23%, P - 0.01%, Cr - 12%, S - 0.01%, V - 0.01, Mo - 1.5%, Ti - 3%, V - 0.001%, Al - 0.6), nickel-based superalloy (Fe - 4%, C - 0.1%, Si - 0.6%, Mn - 0.5%, S - 0.01%, P - 0.01%, Cr - 15%, Ce - 0.01%, Mo - 4%, W - 6%, V - 0.3%, Ti - 2%, Al - 2%, B - 0.01%), the changes in the minimum surface wear, maximum cutting path, and cutting temperature in the processing of these materials, as well as the experimental data analysis showed that the extreme values of changes in the materials’ physical and mechanical properties under the temperature impact can be defined as the minimum surface wear temperature and maximum cutting path temperature, that is, the conditions corresponding to the maximum workability of the materials.
It was established according to the results of the performed work for each of the processed materials that such mechanical properties, as the relative elongation (δ) and the relative reduction (ψ), as well as physical parameters, such as the thermal (linear) expansion coefficient (α) and thermal conductivity coefficient (λ) have minimum values, while the specific heat of the material (C) has the maximum value at the same critical temperature.
Online since: May 2011
Authors: Mitra Damghanian, Jafar Alvankarian, Majlis Burhanuddin Yeop
We present here a comparison of the three mentioned methods according to our observed data of the coating time, uniformity of the coating surface and capability of coating thick layers for a high viscosity SU-8 2075 that is employed in fabrication of microfluidics micro-structures.
Lin, Reduction of diffraction effect of UV exposure on SU-8 negative thick photoresist by air gap elimination, Microsystem Technologies, 8 (2002) 308-313
Online since: April 2014
Authors: Ladislav Pešek, Stanislava Hlebová
Several standard types of toughness test that generate data for specific loading conditions and/or component design approaches exist.
Reduction of width was made in the middle of the tensile specimens in the length of 35 mm, Fig. 3a.
Online since: June 2025
Authors: Marcin Marciniak, Karol Łysiak, Tomasz Galek, Mirosław Tupaj
The combined simulation and experimental analysis provide a framework for optimizing the laser welding process, enabling the reduction of costly experimental trials by simulating different parameter ranges.
Using the temperature data from the laser welding process temperature probes, the values for temperature probes were input into the model as illustrated (Fig. 5), and a series of simulations were subsequently performed with finite element meshes of varying element sizes.
As expected, the accuracy of the temperature distribution increased with the reduction of finite element sizes and adjustments to the parameters describing the properties of the analyzed material.
Online since: June 2013
Authors: Maryam Varmazyar, Michael Kirley, Nicholas Haritos, Tim Peterson
s indicates the observed data set number, s = 1, ...
The different conditions examined in this study are: · A noise free response data set and an accurate numerical model · A noisy response data set and an accurate numerical model · A noisy response data set and an approximate numerical model In order to simulate random noise for the response data, varying levels of spatially Gaussian random noise (1%, 5%, 10%) were added to the response data.
Multiple damage detection using the Bayesian approach of MSV response PSD and a PGA: left-10% noise for response data, middle-5% response data and considering modelling error, right- 10% noise for response data and considering modelling error Fig. 8.
Haritos, et al., Comparative study of broadband damage localization methods applied to test data.
Torres, Structural Damage Detection via Modal Data with Genetic Algorithms.
Online since: August 2006
Authors: E.A. Patterson, Maurice P. Whelan, Erwin Hack, Richard L. Burguete, Thorsten Siebert, Q. Saleem
The results obtained were then compared with data from theoretical and FE analyses.
The experimental data compare very well with the FEA but less so with theory.
However, the experimental data compared very favourably with both theory and FEA in the case of the relationship between applied displacement and strain-gradient (Fig. 4b)
As with the results presented for the first two specimens, the experimental data compared very well with the FEA but less so with theory
(N/mm 2) FEM PE Theory (b) Fig. 5 Comparison of TSA data (a) - sum of the principal stresses, and PE data (b) - difference in principal stresses, with FEA and theory (W, B = 29 mm).
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