Search Options

Sort by:

Sort search results by

Publication Type:

Publication Type filter

Open access:

Publication Date:

Periodicals:

Periodicals filter

Search results

Online since: December 2014
Authors: Xia Yao Zhao
Based on the issue of the Corona Loss that generated in EHV and UHV transmission process, the work is about energy saving, emission reduction, and creates a kind of electric-corona-prevent paint which is suitable for both the super high pressure transmitting wires and metal equipment .
The first brushing, brushing with a vernier caliper to measure the coating thickness of approximately 1mm, for the first time after the coating composition of each wire was subjected to corona loss measurements, the experimental data recorded on a wire coating with the formulated coating , the wire coating thickness of about 2mm, again measured corona wire loss, record experimental data.
devices, real-time record for the experiment leads, photographs selected part as follows: Fig.3 70kv Smooth wire coated charcoal 1cm 71kv Spray paint anti-corona wire Fig.4 115kv Smooth wire coated charcoal 1cm 120kv Spray paint anti-corona wire Table 1 Worn wires before spraying paint and spray paint after power loss Test voltage Spray paint before corona loss After spray paint corona loss 57.27205kv 0.80428W/m 0.60423 W/m 66.23049kv 0.43070 W/m 0.22768 W/m 76.62624kv 0.09618 W/m 0.59820 W/m 86.99675kv 1.44390 W/m 2.05128 W/m 98.13895kv 4.73870 W/m 3.50401 W/m 109.50882kv 12.50034 W/m 6.18422 W/m 115.65982kv 20.61899 W/m 11.39033 W/m 122.60420kv 32.15878 W/m 22.13080 W/m 130.30954kv 49.15233 W/m 45.82654 W/m We draw the wire to prevent the effects of spray paint around the corona power losses, as well as different influence of coating thickness will inception voltage: Fig.5 The experimental results are plotted The resulting analysis of experimental data
Online since: September 2009
Authors: C.J. Stournaras, C. Andreouli, E. Xenogiannopoulou
Nevertheless, great attention is needed in the data analysis in order to ascertain reliable results.
In order to compensate the effect of signal reduction in data, the results where normalized by taking the ratio of peak area for a characteristic line to the area for a spectral window of 50-60 nm.
Each data is the mean value of the integrated intensity by applying 10 laser pulses, while error bars depict the standard deviation of mean value.
Thus the data is the result of an average of 10 laser pulses and the error is the standard deviation.
This is shown in Fig. 6, where the data of Table 1 are presented in the form of a bar diagram.
Online since: July 2011
Authors: Zhi Xin Yang
By collecting and analyzing the perception data in terms safety, it provides decision basis for improving facility design and reduce hazards in the workplace. 1.
The difficulty lies in how to quantify the risk reduction or reduction in severity of problems associated with the workplace due to the use of the new technology.
Whose comments will form the source of data for analysis to eventually identify an optimal workplace layout design. 4.
Online since: November 2010
Authors: Peng Gang Mu, Xiao Peng Wan, Mei Ying Zhao
By fitting the experimental data, it is observed that the parameters in damage functions obey the linear relation well, and the unknown constants are deduced with finite tests easily.
Damage modeled by stiffness is based on non-destructive tests and a series of data can be measured frequently from one specimen during fatigue experiments; the other approach bewritten by strength requires extensive specimens yet, and only one data is obtained from a specimen.
Theoretically, at least three sets of data will be need and the residual stiffness and strength must be included.
Undoubtedly, if sufficient fatigue data are provided, Eq. 6.a-6.b are the recommended methods to simulate the damage and the Eq. 7.d is needless, the prediction results based on them have more believable precision; reversely, inadequate data are supplied, Eq. 7.d is quite appropriate to estimate the other constants.
Obviously, the more data measured, the more accurately the models reveal the rules.
Online since: September 2013
Authors: Fan Jiao Meng, Yong Shen, Yuan Yuan Chen
Vast amounts of data accumulated by the remote monitoring system for new energy vehicles makes data processing necessary.
Information redundancy is found when vast amounts of acquisition parameters are in data processing.
Method Data Description The data used is from the remote monitoring system for new energy vehicles operating in Shanghai EXPO.
The data contains 7 attributes and 10421 records.
Accordingly, data acquisition and data transmission can be optimized.
Online since: June 2008
Authors: Omar Hatamleh, Lloyd Hackel, Scott Forth
The data is presented for two stress ratios, R = 0.1 and 0.7.
Unfortunately, data was not generated on the as-welded at R = 0.7.
Examining first the R = 0.1 data, the friction stir welding induced a residual tensile stress, increasing the crack growth rate at a given ∆K over the baseline data.
Examining the R = 0.7 data shows a similar trend as the R = 0.1 data set.
The three layer laser shock peening applied to friction stir welded specimens resulted in a substantial reduction in fatigue crack growth rate compared to the as-welded data.
Online since: January 2019
Authors: Mustafa Erkan Karaguler, Nazanin Moazzen, Touraj Ashrafian
As there is not adequate data about the end-of-life stage that comprises deconstruction, demolition, transport of wastes/demolition material, waste processing and disposal processes, the step is rarely considered in the framework of LCE studies [10].
A life cycle inventory (LCI) is the data collection part for LCA.
It results in 18.6% and 19.7%, LCE consumption and LCCO2 emissions reduction, respectively.
The way in which calculations are done is not free of uncertainty since there are lots of input data with quite uncertain origins to be implemented in the computations and determining the results.
The sources of such data are very critical to have an accurate prediction, and it can be different from country to country, and even it depends on the material producer’s factory.
Online since: February 2008
Authors: Zhao Xian Xiong, Y.P. Yang, Guo Li Ji, L.M. Li
The reduction of porosity and thus dense process results from the change of the free energy in the ceramic system, which is altered by the disappearing of the interface between solid and pore.
The data of linear shrinkage at 1300°C and 1350°C are obtained through measuring the diameters of the samples before and after sintering.
These data conform to the following rules [5]: ∆L / L = k tn. (2) where n is a shrinkage exponent and k is a physical constant.
Then the data are applied to fit with the equation of porosity as, p - p0 = k ln (t / t0). (4) resulting in the values of k = -0.048 at 1300°C and k=-0.016 at 1350°C as displayed in Fig. 4.
The deviation of data might be due to that there is a fluctuation of about 20°C between practical temperature and displaying one in a furnace during sintering.
Online since: October 2011
Authors: Ai Jun Li, Zheng Li
Then how technological progress will act on economic structure changing and energy intensity reduction?
The estimation method is from 2006 IPCC national greenhouse gas inventories, and the data resource is China energy balance table from 2002 to 2009.
Thus compared with the reduction of energy intensity, energy-saving related technological progress can have greater effects for the reduction of carbon dioxide emissions per unit of GDP.
Then such reduction of carbon dioxide emissions per unit of GDP by energy-saving is still too low to reach the target which Chinese government has undertaken for dealing with global climate change.
Only through promoting energy-saving related technological progress, effective reduction of energy intensity can be implemented in the process of urbanization in China.
Online since: October 2018
Authors: A.O. Makarova, E.R. Zvereva, O.S. Zueva
In particular, carbon nanotubes containing iron are effective catalysts for oxygen reduction, since their iron-carbon sites are catalytic active centers.
In general, the use of CNT in this concentration (especially in conjunction with carbonate slurry) leads to a reduction in the conventional viscosity by 15-25%.
Boiler fuel additives for pollution reduction and energy saving, Noyes Data Corp., 1978
Dai, Nitrogen-Doped Carbon Nanotube Arrays with High Electrocatalytic Activity for Oxygen Reduction, Science 323 (2009) 760-764
Huang, Sulfur-Doped Graphene as an Efficient Metal-free Cathode Catalyst for Oxygen Reduction, ACS Nano 6, 1 (2012) 205-211
Showing 10011 to 10020 of 40353 items