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In this paper, the effect of air pollutants (PM2.5, PM10, SO2, NO2, CO and O3) on the Air quality index (AQI) from Jan. to Feb., 2016 in Jinan was studied by using correlation analysis and path analysis. The results of the correlation analysis show that AQI has a negative correlation with O3, and has a positive correlation with PM2.5, PM10, SO2, NO2 and CO. Meanwhile, PM2.5, PM10, SO2, NO2 and CO...
Tourism seasonality refers to the distribution characteristics and trends of relative concentration of tourist flows over a period of time, which reflects the seasonal distribution and duration of tourist season. Based on the monthly data of tourist flow and online booking volume from 2008 to 2012, this paper analyzes the seasonal characteristics of tourist flow during the year, and points out the...
It is a main issue to find valuable information from the power quality data because of its big volume, heterogeneity and low value density in the power quality monitoring system of the grid. An analysis system of the power quality analysis based on the data mining technologies is presented in this paper, consisting of the technologies of data cleaning, data fusion, cluster analysis, correlation analysis,...
Software bugs contribute to the cost of ownership for consumers in a software-driven society and can potentially lead to devastating failures. Software testing, including functional testing and structural testing, remains a common method for uncovering faults and assessing dependability of software systems. To enhance testing effectiveness, the developed artifacts (requirements, code) must be designed...
This paper selects the time series dates in 1995–2013 about total output value of the high technology industry and the sum of the import and export trade in Jiangxi province. By ADF test, Johansen test and Granger causality test, we studied the relationship between the high-tech industry and the import and export trade. Studies have show that in Jiangxi province the high technology industry has a...
With the rapid development of online learning, users have more and more diverse ways to learning. The advantage of online learning is that the e-learners' behaviors can be completely recorded in the log events. So learning analytics can be made on these data. More than 500 freshmen used Moodle to study our "C program" course each year. So a large number of learning data have been collected...
Aortic augmentation index (AI) has great significance in predicting cardiovascular diseases. To obtain AI the tidal wave crest will be need, which is difficult to identify sometimes. Fortunately, it is easier to obtain the dicrotic wave crest, which can derive a parameter called dicrotic augmentation index (DAI). In this paper the AIs and DAIs of the pulse waves acquired from 20 subjects including...
Remote sensing opens a new method for obtaining forest canopy density. The forest resource field inventory data and simultaneous LANDSAT TM data were used to discover the model of estimating forest canopy density based on remote sensing here in Shimian county, Sichuan province, P.R.of China. A lot of derivative data were created from LANDSAT TM data. 1204 forest sub-compartments with inner homogeneity...
The landscape spatial pattern with large scale has been the research focus of the landscape ecology recently, but few researches pay attention to that how to choose a perspective to study the characteristics of the landscape pattern of the Qinghai-Tibet Plateau for its unique topography and the alpine ecosystem. This paper takes the 2010 Western Mapping Data as the main data source and uses GIS as...
This paper describes the classification of 74 atmospheric circulation parameters firstly. Secondly through the monthly data of different periods of 31 years, 21 years and 11 years, the author calculates the correlation of parameter couples. At last, the article describes strong correlation parameter couples in different periods, different months and different types. Correlation is the basis consideration...
In earlier studies on co-movement of stock markets focused mainly on conventional equity markets. In contrast to previous studies, this research investigated on co-movement of Islamic equity markets. Emphasis was placed on two questions: do the Islamic stock markets in Asia and US move together and what will be the directions of the movements? The data are obtained from Morgan Stanley Capital International...
The development of renewable resources industry is important to our recycling economy, this research adopts factor analysis and correlation analysis to study the datum of seven renewable resources processing zones which approved to been building by our state, and to establish the quantitative model that evaluates construction necessity of renewable resources processing zone. The results show that...
Based on the statistical data of eastern and western regions of China in 2009, with multivariate analysis method, some comparisons of the two regions are made. Firstly, 26 indexes are collected including science, education, culture and health etc. On the basis of relativity analysis, indexes with larger correlation are deleted and only 17 of them are reserved. Then relying on these indexes, principal...
Correlation analysis has been conducted with help of grey system theory on four sci-tech output index inclusive of numbers of patents and sci-tech thesis and on six sci-tech input index inclusive of number of sci-tech personnel, and sci-tech funds collection. Based on the analysis hereinabove, data prediction and relevancy calculation have been made with regard to the ten index hereinabove in hopes...
Although some documents deal with the impacts of producer services on regional innovation capability, relative empirical studies are rarely found in China. The relationship between producer services and innovation capability of state-level hi-tech development zones is empirically studied with principal component analysis and correlation analysis respectively, and it is proved that producer services...
In this paper, a valid frequency range of throat signal analyses is presented. Compare to speech signals, the throat signals have many differences in the amount of information. In this context, targeting on throat signals to find valid frequency range is one of the most important analyses for the development of new breed of feature extraction algorithm. In this respect, using analysis similarity of...
Timely and regular information on urban environmental quality (UEQ) is essential for urban planning. This research evaluated the ten-year UEQ changes in Indianapolis, Indiana, U.S.A, based on the synthetic indicators of physical variables extracted from remotely sensed images and socioeconomic variables derived from census data. Physical environmental variables such as land use and land cover data,...
In recent years, with the rapid development of small and medium-sized enterprises in China, the partial enterprises have been constructed to be the new power to promote the domestic economic growth. However, due to the particularity of organization structures, corporate standards and business risks, the participation of VC and PE institutions is very important for the development of enterprises. This...
Illustrated with Qiantang estuary , Hangzhou Bay, the relationship between structure of coastal geomorphology and dissipation of tidal energy were analyzed and the landscape ecological mechanism of watershed flood was studied based on the theory of the landscape ecology and quantitative assessment method of landscape characteristic index. By Correlation analysis and multiple linear regression analysis...
This paper presents a new algorithm for rapid estimating inter-area oscillation(IAO) mode shapes and corresponding modes using correlation analysis(CA). It firstly extracts a weak damping component strongly associated with objective mode from each tie-line active power signal came from WAMS(Wide Area Measurement System), through a low-pass or band-pass filter which is designed by a priori modal knowledge...
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