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Online since: November 2014
Authors: Ji Qi, Shuai Shi, Zhi Hui Chen, Yun Liu
Based on land use data and social economy data in 1999 and 2005, this article analyzed the spatial-temporal characteristics and driving factors of the land use change in Shunyi district by GIS technology and logistic regression analysis method.
Data Sources and Research Methods The General Situation of Research Area.
Data Sources and Processing.
TM image data in 1999 and 2005 was obtained from remote sensing satellite ground station of China.
It would add social and economic variables data in the spatial data, then use the binary logistic regression model in the SPSS regression to analysis driving factors of land use change.
Online since: December 2012
Authors: Kui Peng
Data obtaining and eco-service evolutions.
Based on interpretation of the Landsat TM /ETM+ imageries for this region obtained in 2008, and with the complementary data interpreted on the 2.5m-resolution images integrated by panchromatic and multiband data from sensor ALOS, the data of urban greenspaces were extracted from vector data of land use in the Yangtze River Delta under the help by groundtruthing the study region.
This study adopted these data to calculate that fluoride absorption and NOx absorption by urban forests were 77t and 230t yearly in the Yangtze River Delta.
Synthesized numerous studies data, urban forest could detent dust of average10.9 t/hm2.a that is much more than dust detention of grassland with average 1.2kg/hm2.a.
This paper adopted unit price system of ecosystem service valuation based on specialist acknowledge, whose data were calculated by Xie et al. [13].
Online since: May 2016
Authors: Ctislav Fiala, Petr Hájek, Antonín Lupíšek
Shape Optimization One of key aspects of sustainability is reduction of primary material consumption.
Aggregated LCA results: Aggregated impact data for specific life cycle phases construction are presented in Table 1.
Table 1 Aggregated impact data of construction life phase The higher water consumption of V3 (subtle HPC frame) in comparison to V2 (precast RC frame) in construction life phase (Table 1) is connected with production of lightening elements from wood shavings concrete.
Fig. 9 Aggregated data – primary energy consumption per unit area of all alternatives in MJ Figure 10 presents the comparison of assessed alternatives. 100% is represented by V1 (monolithic RC frame structure from C30/37).
Fig. 10 Aggregated data – primary energy consumption per unit area of all alternatives in MJ.
Online since: August 2025
Authors: Ismail Muhammad Yusri, N.H. Badrulhisam, A.M.I. Mamat, M.H. Mat
Each modification, including the combination of all modifications, was compared with baseline emissions data, which are carbon dioxide (CO2), carbon monoxide (CO), and nitrogen oxides (NOx).
All the data obtained will be compared with the baseline exhaust emission without any modification.
An MRU gas analyser was used to collect emission data.
The probe of the MRU gas analyser was mounted at the exhaust tailpipe to collect the emissions data.
At 3000 RPM, the lowest percentage of CO2 emission was the combination of all modifications with a value of approximately 15.7% CO2 compared to the baseline engine data with a value of approximately 16.3% CO2.
Online since: December 2012
Authors: Ai Jun Li, Yin Xue Cao
Finally, we also analyze the reduction potential of CO2 emissions by numerical results.
The data used in calculation is based on statistic data and the data in 2007 and previous years.
According to these data, we can estimate the maximal annual production capability about the pig iron, crude steel, hot rolled steel and cold rolled steel, which are 11650420 tons, 11898000 tons, 11200000 tons and 4500000 tons, respectively.
If CO2 emissions can be charged in future, CO2 emissions reduction also can make some profits finally.
However, the current emissions reduction is not very large compared with the total emissions amount.
Online since: February 2025
Authors: Amos T. Kabo-Bah, Rabani Adamou, Satyanarayana Narra, Janet Appiah Osei
A purposive sample of 500 taxi drivers was selected and data analysis was conducted using R statistical package.
Per Driver and Vehicle Licensing Authority (DVLA) data, there are approximately 10,000 registered commercial drivers in the city including those driving taxis, minibuses (trotro) and other commercial vehicles.
Data were collected through interviews using closed-ended questionnaires.
Data analysis was performed in R Studio, where the percentage distribution of the different fuel types used by the taxi drivers was elicited.
A review of techno-economic data for road transportation fuels.
Online since: July 2019
Authors: Gabriel Vinha, Raul Fangueiro
The proposed method presents significant advantages allowing the possibility to perform tests without interruption, as well as the ability to generate a greater amount of data, providing more accurate results.
For the textured polyamide yarn, the reduction occurred during the first 30 seconds (equivalent to a 5% elongation), as shown in Fig. 3.
For the twisted polyamide, the reduction occurred during the first 8 seconds (Fig. 4).
After the initial reduction, both yarns presented a slight volumetric alteration.
However, after the fibers accommodation, the diameter reduction is very small, and the yarn has a nearly uniform volumetric ratio.
Online since: December 2018
Authors: Ya Zheng Liu, Chao Lei Zhang, Yang Wei, Wen Fang, Bao Run Cai
Fig.2 and Table.2 are stress-strain curve and test data of different microstructures.
Its yield strength is 1407MPa and percentage reduction of area is 31.7%.
The average of experimental data of process of tempering at high temperature steels of 40Cr[11] and 42CrMo[12] is as table.1.
Its percentage reduction of area is 14.8% lower than 40Cr, which is bad for using.
Percentage reduction of area and elongation of martensite is 0.7% and 0.6%, respectively.
Online since: October 2009
Authors: Paul Koltun, John F. Grandfield, Ambavalavanar Tharumarajah
Liquid metal is delivered from the reduction cells to the furnaces.
Assumptions To conduct the study, some simplifications have been made due to availability of data and the complexity of processes itself.
See [8] for typical data. 5.
Most of the data for cast house operations, materials production, energy and water consumptions have been obtained from published data and directly from cast houses.
Limitations and Variations The analysis is based on indicative data from the industry and knowledge of typical practice.
Online since: June 2010
Authors: Chang Yu Li, Zhe Lv
The phase analysis of the anode before and after reduction were obtained using a Bede D 1 X-ray Diffractometer by scanning at a rate of 0.05° per step length with the retention time per second in the range 20°-70°; the data were recorded using a computer.
The thermal expansion coefficients of the samples were measured in air from 50 to 900 ℃ at a heating rate of 5 ℃·min -1 using a dilatometer (DIL402C/3/G), and the data were automatically recorded using a computer.
The size of the smaller pores caused by the reduction of metal oxide is less than 1 µm.
Fig.1 SEM of the Cu4 anode after reduction 20 40 60 Ni Cu 2θ (C) SDC CuO Ni0.75Cu0.25O Relative Intensity(a.u.)
The main phases of the anode before reduction. are SDC, Ni0.75Cu0.25O, and NiO ,The main phases of the anode after the reduction at 700 ℃ are Cu, Ni, and SDC, which shows that the reduction is complete.
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