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Online since: September 2013
Authors: Ying Chen, Bao Hui Wang, Hong Jing Han, Yan Guang Chen, Cong Hao Xie, Dan Dan Yuan
The data were recorded every 30sec from the start to the end of coke combustion.
So the reduction of CO emission is obvious as La2O3 particles size decreasing.
It was reasonably to believe that La2O3 served as a catalyst for NO reduction by coke and CO.
The NOx reduction ratio is over 10% as La2O3 (38-47µm) loading is 2.0wt%
A method of NOx reduction by coke modified with additives in sintering process.
Online since: August 2013
Authors: Su Zhen Hou, Yan Guo, Ping Wang
Effect of Longyangxia Reservoir on the Variation of Water and Sediment Hou Suzhen1,a, Guo Yan1,b and Wang Ping1,c 1 Yellow River Institute of Hydraulic Research, YRCC, Zhengzhou, China, 450003 a hsz20130422@163.com b guoyan603@163.com c wp_sc@sina.com Keywords: river sediment engineering; variation of water and sediment;data analysis; Longyangxia reservoir Abstract.
This paper analyzes the runoff sediment characteristics since the operation of the reservoir on the basis of the hydrological data before and after the operation of Longyangxia reservoir.
Due to the reduction of sediment, the coefficient of sediment inflow also had great changes.
The said data completely indicated that the effect of water storage and sediment trapping of Longyangxia reservoir on outflow sediment and coefficient of sediment inflow.
(2) Affected by the operation of Longyangxia reservoir, the peak discharge at Guide was averagely reduced by 1270m3/s with the reduction ratio of 65.6%.
Online since: October 2013
Authors: Gang Wang, Guang Di Cui, Ying Li, Ji Zhang Fan
Introduction Gene selection is an important aim of a microarray data analysis, as it can reveal information leading to a better understanding of the mechanisms of the investigated phenomenon.
Ke et al. [3] introduced a new approach based on ACO for the purpose of attribute reduction.
In Section 3, the experiment results on various public data sets are discussed.
The data sets include leukemia data set, colon data set, breast cancer data set, lung carcinoma dataset and brain cancer data set.
Goodison, Local-Learning-Based Feature Selection for High-Dimensional Data Analysis.
Online since: July 2015
Authors: Małgorzata Pawlak
Based on the study [2] that used both the top-down (bunker sales data) and the bottom-up (fleet activity data) methods for its estimates, the annual fuel consumption for all ships was approximately 300 million tonnes in 2012, resulting in CO2 emissions of 949 tonnes, which equals 2.7% of global CO2 emissions for that year.
International shipping consumes mainly heavy fuel oil (HFO) – its share was of about 85% (data from the year 2012); when marine distillates accounted for nearly 15%. 
Also, significant reduction in NOx emissions are expected globally through Annex VI regulations – for newbuilt ships, since 1st January 2011 it is 20% reduction in NOx emissions (Tier II) and within ECA, soon – from 1st January 2016 – 80% reduction in NOx emissions is expected (fig.2).
Currently this is regulated indirectly by the sulphur reduction.
A similar reduction will be enforced for worldwide shipping by 2020.
Online since: February 2019
Authors: Toru Nakajima, Masakazu Shingu, Yoshitaka Takahashi, Masatoshi Saito
The measured data of standard in surface shape measurement were used for calibration, and the obtained value was confirmed to cause noise reduction and improvement of holographic reconstructed images in digital holography.
Accurate phase shift is also confirmed by reduction of noises in the surface shape image.
Line profile of each image, which was along line AB in Fig. 3(b), was measured and compared the data measured by the laser measuring microscope as shown in Fig. 4(a) and (b).
Reference lines Aa and bB were determined by the average of 25 and 20 data, respectively, chosen in the region where the variation of data was relatively small.
Yoshimura, Fast acquisition system for digital holograms and image processing for three-dimensional display with data manipulation, Appl.
Online since: December 2010
Authors: Bo Chen, Jin Zheng, Jian Feng Wei
The refined exponential model for estimating corrosion of steel materials is presented based on long-term experimental data available.
A represents the corrosion depth of the material in the first year and it can be estimated based on commonly available meteorological and pollution data [4] (2) Where the coefficients C1 and C2 are the constants depending on the type of metal only, and N is the environmental index expressed as (3) In which f1, f2 and f3 are termed the humidity coefficient, air contamination coefficient, and rain acidity coefficient, respectively.
(7) By applying the regressive analysis to the test data collected from the national experimental network in China, the environmental index N and the corrosion development trend n in Eq (7) have been estimated for seven exampled cities, and the constants C1 and C2 have also been provided for different types of metal materials.
The reduction of thickness of each member of the structure can then be calculated and input to compute the actual stiffness of the structural members.
The change in a natural frequency is negative mainly because the relative extent of the stiffness reduction effects is larger than those of mass reduction effects.
Online since: October 2011
Authors: Chao Heng Tseng, Peng Yu Chen, Yen Kuang Lin, Yi Hsuan Shih, Yu Ling Chen
The "Air Resource Co-benefits (ARCoB) Model" was developed in this study to integrated the health benefits from the reduction of criteria pollutants (the averted loss of life expectancy and annual medical expenditure) and the ecological benefits from the reduction of greenhouse gases (GHGs) (the averted carbon tax) from the promotion of the alternative fuel vehicles currently on the market.
From cost-benefit analysis, the amount of money would be appropriate for government subsidy and reduction of the manufacturing cost for alternative fuel vehicles were suggested for the policy makers and automobile enterprises in this study.
It is estimated by the following equation: Attributable proportion (AP) = (RR-1)/RR eq.(1) The benefit of averted mortality, i.e. the reduction of Loss of Life Expectancy (LLE), from the reduction of criteria pollutants was estimated by the Taiwanese abridged life table; the benefit of averted morbidity from that was estimated by the Taiwanese medical expenditure provided by the Department of Health.
References [1] TEDs 7.0 (Taiwan Emission Data System),http://www.epa.gov.tw/ [2] IPCC(Intergovernmental Panel on Climate Change),http://www.ipcc.ch/ [3] Taiwan power company,http://www.taipower.com.tw/ [4] Hongjhih Lin, The Simulation and Social Benefits of Greenhouse Gas and Criteria Air pollution Reduction in Taipei City by System Dynamic Model STELLA, Master Thesis, National Taipei University of Technology, Taipei, Taiwan, 2008.
(In Chinese) [5] Zhixiang Yang, Economic Benefit of Air Pollution Reduction by contingent valuation method in Taiwan, Master Thesis, National Taipei University of Technology, Tainan, Taiwan, 2009.
Online since: December 2010
Authors: Chen Yi Sun
For analyzing the effect of a green roof on the thermal environment, this paper collects temperature and humidity data from two building roofs that have different greening levels and tries to analyze the thermal influence of a green roof on air temperature in Taipei City.
The results of this research can give citizens an idea what kind of thermal environment they can benefit from; moreover, it also can provide useful data to governments for calculating the environmental benefit if they carry out a green roof policy.
Although green roofs can cool the ambient air through consuming the solar heat that is gained from transpiration and photosynthesis, some quantitative data on its thermal benefits are desirable for exploring the thermal impacts of green roofs in the Taipei metropolitan area.
The comparators were also installed on non-green roofs (NG) near Site A and Site B to collate data for making comparative analyses.
Data analysis In this research, the green coverage ratio of Site A and Site B are 24.42% and 35.05% by calculating the greening area within a radius of 10 meters.
Online since: July 2014
Authors: Jian She Song, Song Tian, Shu Bing Tian, Wei Gong
SAR data are widely used for the treatment of SAR images, so that become one of the SAR image change detection sensing current cutting-edge technology development.
Change detection based on S3VM Initialization Standard SVM training set using samples of the pseudo-training data find an optimal separation hyperplane, and make it the largest margin on both sides of the interval[3].
(a)Image in May., 1997 (b)Image in Aug., 1997 (c)Reference image Figure 1 SAR images relating to flooding in Bern city SAR image data set of the original image and the reference change used in the experiment shown in Figure 1.
The original image data set which was in May 1997 and August 1997 Radarsat-1SAR images Ottawa Canada, is shown in 1 (a) and 1 (b) below.
Knowledge Discovery and Data Mining, 2(2): 121-167(1998)
Online since: October 2011
Authors: Zuo Bing Chen, Fang Ye, Chao Gao
This shows that numerical simulation can be a very good guidance on NOx emission reduction technology and staged-combustion precalciner structure design, and we can design and optimize the NOx emission reduction scheme based on numerical simulation to achieve the purpose of reducing NOx pollution in cement production.
Therefore, the generation of fuel NOx is determined by two kinds of competitive reaction that the oxidation and reduction of fuel NOx, and the formation mechanism is very complicated.
Boundary conditions of numerical simulation are based on the actual data that measured in actual production.
Considering a material decomposition circumstances, and combustion influence of rotary kiln, we made a numerical simulation of NOx formation in precalciner, and the results is tally with the practical data; 3).
Through the analysis of the control technology of NOx formation in cement production, it shows that numerical simulation can be a very good guidance on NOx emission reduction technology and staged-combustion precalciner structure design, and we can design and optimize the NOx emission reduction scheme based on numerical simulation to achieve the purpose of reducing NOx pollution in cement production.
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