Search Options

Sort by:

Sort search results by

Publication Type:

Publication Type filter

Open access:

Publication Date:

Periodicals:

Periodicals filter

Search results

Online since: April 2022
Authors: Paulo B. Lourenço, Rafael Ramirez, Bahman Ghiassi, Daniel V. Oliveira
Nonetheless, accelerated aging data cannot be used to make reliable service life estimations without a clear correlation with real environmental processes.
However, without real exposure data to reveal the actual degradation phenomena, the accelerated degradation trends must be treated with caution since they may lead to unrealistic results.
The scope is to provide real exposure data to correlate the accelerated aging results, which still lacks in the literature.
The environmental data corresponding to RE1 were retrieved from a nearby meteorological station.
It must be noted that the presented data constitute only preliminary results in the framework of a much more comprehensive experimental campaign.
Online since: July 2020
Authors: Vitalii V. Kozlovski, Mikhail E. Levinshtein, Leonid Fursin, Anatoly M. Strel'chuk, Pavel A. Ivanov, Alexander V. Zubov, Alexander A. Lebedev
From the data of noise spectroscopy, the density of traps in the gate oxide Ntv has been estimated.
From the data presented in the inset to Fig 4 one can conclude that the external transconductance is very sensitive to the dose F in the range 1012 cm-2 ≤ F ≤ 4×1013 cm-2.
Frequency of analysis f = 1.22 Hz; Vd = 0.14 V Comparing the data shown in Figs. 2 and 5, it is easy to make sure that there is a correlation between the value of the drain saturation current and the level of low frequency 1/f noise.
This value is comparable to the value h = 3.5 observed in [7] Using the data presented in Fig. 6, one can roughly estimate the effective density of the traps in the gate oxide Ntv [8].
The density of traps in the gate oxide Ntv was estimated from the data of noise spectroscopy.
Online since: February 2014
Authors: Min Xiao, Chun Long Feng
In order to solve the problem of Diesel natural gas dual fuel engine, such as power reduction, low charging efficiency, the conception of diesel engine fueled with pilot-ignited directly-injected liquefied natural gas is put forward.
Conclusions 1) By analyzing the three groups of simulation data, delaying the injection timing for LNG will reduce the mean pressure peak and the mean temperature peak and increase the amount of NOx emission, but with the postpone of the injection timing for LNG, the indicated power performance becomes worse and worse.
Online since: October 2018
Authors: Attaphon Chaimanatsakun, Prapasiri Pongprayoon
Increasing pore size results in the reduction in its strength.
Such model representative achieved exploring membrane fracture and deformation and their mechanical properties are also comparable to experimental data [7].
Online since: March 2010
Authors: Zhi Yi Liu, An Jing Duan, Li Fang Gao
TEM results suggested the reduction of mechanical properties of samples was attributed to the coarsening of Ω phase and the precipitation of θ phase during thermal exposure.
After experienced designed exposure process, the specimens were stretched to fracture to get a series of data about residual strength and ductility (i.e. tensile strength, yield strength and elongation).
Online since: December 2013
Authors: M. Ghassemieh, S. Alvandi
Furthermore the proposed based isolation systems has enhanced performance in terms of response reduction and re-centering capacity.
All dimensions, material charachterisitics, mass of the structure and other necessary data for modeling are extracted from the paper presented by Ohtori et., al. [4].
Online since: June 2012
Authors: Jin Shan Li, Bin Tang, Hui Chang, Hong Chao Kou, Jiang Kun Fan, Min Jie Lai
The experiments were carried out in the Gleeble-3800 thermal and mechanical simulator in the temperature range of 770-970˚C and strain rate range of 10-3-10s-1, and height direction reduction of 70%.
By plotting the experimental data, the results demonstrate that there were nearly line correlations between lnσ and lnε, 1/T, and lnε, show as Fig.3-5.
Online since: March 2006
Authors: Kwang Joon Yoon, Hoon Cheol Park, Nam Seo Goo, Hery Setiawan
The advantages of the LIPCA design are weight reduction by using the lightweight fiber reinforced plastic layers without compromising the generation of high force and large displacement, and design flexibility by selecting the fiber direction and the size of prepreg layers.
The power consumed by the actuator can be determined by using Eq. (7) based on the measured capacitance data, the input voltage, and the driving frequencies.
Online since: July 2021
Authors: Valeria V. Strokova, Viktoriya V. Nelyubova, Ulyana N. Duhanina, Dmitriy A. Balitsky, Oleg I. Drozdov
The introduction of the solution provides a reduction in the setting time of cement without loss of strength both at the initial and at the final stages of hardening.
Results According to the obtained data, the introduction of bacterial inoculum and precursors in a solution of biocarbonization initiators does not affect the water consistency and consistency of the cement paste, regardless of the concentration (Table 1).
Online since: February 2013
Authors: Bin Zhang, Xiao Qiao Guo, Gang Yan
According to the statistic data, the add value of machinery manufacturing industry increased 311.40% and energy consumption increased 19% from 2001 to 2008[3].
In order to response to the environmental challenge, and avoid repeating the old path of “pollution first, treatment later”, china formulated “the twelfth five-year plan” and continuously took “saving energy and emission reduction” as a binding goal of the economic and social development.
Based on the models, empirical data should be collected and analyzed.
With the models and datas, the energy consumption table was compiled in table 1 and table 2.
According to energy consumption data and calculation, the direct energy consumption in machinary manufacting industry(sector 15) accounts for 5.46% of total direct energy consumption in china in 2007 and ranks 7th among 22 economic sectors.
Showing 25021 to 25030 of 40699 items